Chapter聽5.聽Database Administration - MySQL 5.1参考手册中文版
鐩綍
- 5.1. MySQL鏈嶅姟鍣ㄥ拰鏈嶅姟鍣ㄥ惎鍔ㄨ剼鏈�
- 5.2. mysqlmanager锛歁ySQL瀹炰緥绠＄悊鍣�
- 5.3. mysqld锛歁ySQL鏈嶅姟鍣�
- 5.4. mysql_fix_privilege_tables锛氬崌绾ySQL绯荤粺琛�
- 5.5. MySQL鏈嶅姟鍣ㄥ叧鏈鸿繘绋�
- 5.6. 涓�鑸畨鍏ㄩ棶棰�
- 5.7. MySQL璁块棶鏉冮檺绯荤粺
- 5.8. MySQL鐢ㄦ埛璐︽埛绠＄悊
- 5.9. 澶囦唤涓庢仮澶�
- 5.10. MySQL鏈湴鍖栧拰鍥介檯搴旂敤
- 5.11. MySQL鏃ュ織鏂囦欢
- 5.12. 鍦ㄥ悓涓�鍙版満鍣ㄤ笂杩愯澶氫釜MySQL鏈嶅姟鍣�
- 5.13. MySQL鏌ヨ楂橀�熺紦鍐�
MySQL鏈嶅姟鍣紝鍗�mysqld锛屾槸鍦�MySQL瀹夎涓礋璐ｅぇ閮ㄥ垎宸ヤ綔鐨勪富绋嬪簭銆傛湇鍔″櫒闅忛檮浜嗗嚑涓浉鍏宠剼鏈紝褰撲綘瀹夎MySQL鏃跺畠浠彲浠ユ墽琛岃缃搷浣滐紝鎴栬�呮槸甯姪浣犲惎鍔ㄥ拰鍋滄鏈嶅姟鍣ㄧ殑甯姪绋嬪簭銆�
鏈妭鎻愪緵浜嗘湇鍔″櫒鍜岀浉鍏崇▼搴忕殑姒傝堪锛屼互鍙婃湇鍔″櫒鍚姩鑴氭湰鐩稿叧淇℃伅銆傚叧浜庨厤缃湇鍔″櫒鐨勪俊鎭弬瑙�5.3鑺傦紝鈥渕ysqld锛歁ySQL鏈嶅姟鍣ㄢ��銆�
MySQL绋嬪簭閲囩敤鍚勭涓嶅悓鐨勯�夐」銆備絾姣忎釜MySQL绋嬪簭鎻愪緵涓�涓�--help閫夐」,浣犲彲浠ョ敤鏉ユ煡闃呯▼搴忛�夐」鐩稿叧璇存槑銆備緥濡傦紝浣犲彲浠ヨ瘯璇�mysqld --help銆�
浣犲彲浠ュ湪鍛戒护琛屼腑鎴栧湪閫夐」鏂囦欢涓寚瀹氶�夐」鏉ユ浛鎹㈡墍鏈夋爣鍑嗙▼搴忎腑鐨勯粯璁ら�夐」銆傚弬瑙�4.3鑺傦紝鈥滄寚瀹氱▼搴忛�夐」鈥�銆�
涓嬮潰绠�鍗曟弿杩颁簡MySQL鏈嶅姟鍣ㄥ拰鏈嶅姟鍣ㄧ浉鍏崇▼搴忥細
路 mysqld
SQL鍚庡彴绋嬪簭(鍗�MySQL鏈嶅姟鍣�)銆傝鎯充娇鐢ㄥ鎴风绋嬪簭锛岃绋嬪簭蹇呴』杩愯锛屽洜涓哄鎴风閫氳繃杩炴帴鏈嶅姟鍣ㄦ潵璁块棶鏁版嵁搴撱�傚弬瑙�5.3鑺傦紝鈥渕ysqld锛歁ySQL鏈嶅姟鍣ㄢ��銆�
路 mysqld-max
鍖呮嫭鏇村鐗规�х殑涓�涓湇鍔″櫒鐗堟湰銆傚弬瑙�5.1.2鑺傦紝鈥渕ysqld-max鎵╁睍MySQL鏈嶅姟鍣ㄢ��
路 mysqld_safe
鏈嶅姟鍣ㄥ惎鍔ㄨ剼鏈�傚鏋�mysqld-max瀛樺湪,mysqld_safe璇曞浘鍚姩瀹冿紝鍚﹀垯鍚姩mysqld銆傚弬瑙�5.1.3鑺傦紝鈥渕ysqld_safe锛歁ySQL鏈嶅姟鍣ㄥ惎鍔ㄨ剼鏈��銆�
路 mysql.server
鏈嶅姟鍣ㄥ惎鍔ㄨ剼鏈�傝鑴氭湰鐢ㄤ簬浣跨敤鍖呭惈涓虹壒瀹氱骇鍒殑杩愯鍚姩鏈嶅姟鐨勮剼鏈殑杩愯鐩綍鐨勭郴缁熴�傚畠璋冪敤mysqld_safe鏉ュ惎鍔�MySQL鏈嶅姟鍣ㄣ�傚弬瑙�5.1.4鑺傦紝鈥渕ysql.server锛歁ySQL鏈嶅姟鍣ㄥ惎鍔ㄨ剼鏈��銆�
路 mysqld_multi
鏈嶅姟鍣ㄥ惎鍔ㄨ剼鏈紝鍙互鍚姩鎴栧仠姝㈢郴缁熶笂瀹夎鐨勫涓湇鍔″櫒銆傚弬瑙�5.1.5鑺傦紝鈥渕ysqld_multi锛氱鐞嗗涓狹ySQL鏈嶅姟鍣ㄧ殑绋嬪簭鈥�
路 mysql_install_db
璇ヨ剼鏈敤榛樿鏉冮檺鍒涘缓MySQL鎺堟潈琛ㄣ�傞�氬父鍙槸鍦ㄧ郴缁熶笂棣栨瀹夎MySQL鏃舵墽琛屼竴娆°�傚弬瑙�2.9.2鑺傦紝鈥淯nix涓嬪畨瑁呭悗鐨勮繃绋嬧��銆�
路 mysql_fix_ privilege_tables
鍦ㄥ崌绾у畨瑁呭悗锛屽鏋滄柊鐗堟湰MySQL涓殑 鎺堟潈琛ㄦ湁鏇存敼锛屽垯浣跨敤璇ヨ剼鏈潵鏇存敼鎺堟潈琛ㄣ�傚弬瑙�2.10.2鑺傦紝鈥滃崌绾ф巿鏉冭〃鈥�銆�
鏈嶅姟鍣ㄤ富鏈轰笂杩樿繍琛屽叾瀹冨嚑涓▼搴忥細
路 myisamchk
鐢ㄦ潵鎻忚堪銆佹鏌ャ�佷紭鍖栧拰缁存姢MyISAM琛ㄧ殑瀹炵敤宸ュ叿銆傚湪5.9.5鑺傦紝鈥渕yisamchk锛歁yISAM琛ㄧ淮鎶ゅ疄鐢ㄥ伐鍏封��涓弿杩颁簡myisamchk銆�
路 make_binary_distribution
璇ョ▼搴忓彲浠ョ敓鎴愮紪璇戣繃鐨�MySQL鐨勪簩杩涘埗鐗堟湰銆傚彲浠ラ�氳繃FTP涓婁紶鍒�ftp.mysql.com鐨�/pub/mysql/upload/锛屼緵鍏跺畠MySQL鐢ㄦ埛浣跨敤銆�
路 mysqlbug
MySQL 缂洪櫡鎶ュ憡鑴氭湰銆傚畠鍙互鐢ㄦ潵鍚�MySQL閭欢绯荤粺鍙戦�佺己闄锋姤鍛娿��(浣犱篃鍙互璁块棶http://bugs.mysql.com/鍦ㄧ嚎鍒涘缓缂洪櫡鎶ュ憡鏂囦欢銆傚弬瑙�1.7.1.3鑺傦紝鈥滃浣曢�氭姤缂洪櫡鍜岄棶棰樷��锛�銆�
MySQL-Max鏈嶅姟鍣ㄦ槸mysqld MySQL鏈嶅姟鍣ㄧ殑涓�涓増鏈紝鍖呭惈浜嗘洿澶氱殑鐗规�с��
璇ュ垎鍙戠増鐨勪娇鐢ㄥ彇鍐充簬浣犵殑骞冲彴锛�
路 瀵逛簬Windows锛�MySQL浜岃繘鍒跺垎鍙戠増鍖呮嫭鏍囧噯鏈嶅姟鍣� (mysqld.exe)鍜�MySQL-Max鏈嶅姟鍣�(mysqld-max.exe)锛屽洜姝や綘涓嶅啀闇�瑕佷笓鐢ㄥ垎鍙戠増銆傚彧闇�瑕佷娇鐢ㄤ竴涓父瑙�Windows鍒嗗彂鐗堬紝鍙互浠�http://dev.mysql.com/downloads/鑾峰緱銆傚弬瑙�2.3鑺傦紝鈥滃湪Windows涓婂畨瑁匨ySQL鈥�銆�
路 瀵逛簬Linux锛屽鏋滀綘浣跨敤RPM鍒嗗彂鐗堝畨瑁�MySQL锛岄鍏堜娇鐢ㄥ父瑙�MySQL-server RPM鏉ュ畨瑁呮爣鍑�mysqld鏈嶅姟鍣ㄣ�傜劧鍚庝娇鐢�MySQL-Max RPM鏉ュ畨瑁�mysqld-max鏈嶅姟鍣ㄣ��MySQL-Max RPM鍋囧畾浣犲凡缁忓畨瑁呬簡甯歌鏈嶅姟鍣�RPM銆傚叧浜�Linux RPM杞欢鍖呯殑璇︾粏淇℃伅锛屽弬瑙�2.4鑺傦紝鈥滃湪Linux涓嬪畨瑁匨ySQL鈥�銆�
路 鎵�鏈夊叾瀹�MySQL-Max鍒嗗彂鐗堝寘鍚竴涓�mysqld鏈嶅姟鍣紝浣嗗叿鏈夋洿澶氱殑鐗规�с��
浣犲彲浠ヤ粠MySQL AB缃戝潃http://dev.mysql.com/downloads/鎵惧埌MySQL-Max浜岃繘鍒剁増鏈��
MySQL AB浣跨敤涓嬮潰鐨�configure閫夐」鏋勫缓MySQL-Max鏈嶅姟鍣細
路 --with-server-suffix=-max
璇ラ�夐」涓�mysqld鐗堟湰瀛楃涓叉坊鍔犱竴涓�-max鍚庣紑銆�
路 --with-innodb
璇ラ�夐」鍚敤InnoDB瀛樺偍寮曟搸鏀寔銆�MySQL-Max鏈嶅姟鍣ㄥ寘鎷�InnoDB鏀寔銆傚湪MySQL 4.0鍙婁互涓婄増鏈腑锛岄粯璁�InnoDB鍖呮嫭鍦ㄦ墍鏈変簩杩涘埗鍒嗗彂鐗堜腑锛屽洜姝や綘涓嶉渶瑕佺敤MySQL-Max鏈嶅姟鍣ㄥ彧鏄敤鏉ヨ幏鍙�InnoDB鏀寔銆�
路 --with-bdb
璇ラ�夐」鍚敤Berkeley DB (BDB)瀛樺偍寮曟搸鏀寔銆�
路 --with-blackhole-storage-engine
璇ラ�夐」鍚敤BLACKHOLE瀛樺偍寮曟搸鏀寔銆�
路 USE_SYMDIR
鍚敤璇ュ畾涔夋潵涓�Windows鎵撳紑鏁版嵁搴撶鍙烽摼鎺ユ敮鎸併�傜鍙烽摼鎺ユ敮鎸侀�傜敤浜庢墍鏈�Windows鏈嶅姟鍣紝鍥犳Max鏈嶅姟鍣ㄤ笉闇�瑕佹敮鎸佽鐗规�с��
路 --with-ndbcluster
璇ラ�夐」鍚敤NDB Cluster瀛樺偍寮曟搸鏀寔銆傜洰鍓�(5.1.2-alpha)鍙湁Linux銆�Solaris鍜�Mac OS X鏀寔Cluster銆傚凡鏈変竴浜涚敤鎴锋姤鍛婂湪BSD 鎿嶄綔绯荤粺涓婃垚鍔熶娇鐢ㄤ簡浠庢簮鐮佹瀯寤虹殑MySQL Cluster锛屼絾鐩墠杩樻病鏈夊緱鍒板畼鏂规敮鎸併��
MySQL-Max浜岃繘鍒跺垎鍙戠増瀵逛簬鎯宠瀹夎棰勭紪璇戠▼搴忕殑鐢ㄦ埛寰堟柟渚裤�傚鏋滀綘浣跨敤婧愮爜鍒嗗彂鐗堟瀯寤�MySQL锛屼綘鍙互閫氳繃鍦ㄩ厤缃椂鍚敤MySQL-Max浜岃繘鍒跺垎鍙戠増鏋勫缓鎵�鐢ㄧ殑鐩稿悓鐨勭壒鎬ф潵鏋勫缓浣犺嚜宸辩殑Max-like鏈嶅姟鍣ㄣ��
MySQL-Max鏈嶅姟鍣ㄥ寘鎷�BerkeleyDB (BDB)瀛樺偍寮曟搸锛屼絾骞堕潪鎵�鏈夊钩鍙版敮鎸�BDB銆�
Solaris銆�Mac OS X鍜�Linux(鍦ㄥぇ澶氭暟骞冲彴涓�)鐨�MySQL-Max鏈嶅姟鍣ㄥ寘鎷�NDB CLUSTER瀛樺偍寮曟搸鏀寔銆傝娉ㄦ剰蹇呴』鐢�ndbcluster閫夐」鍚姩鏈嶅姟鍣紝浠ヤ究浣挎湇鍔″櫒鍋氫负MySQL Cluster鐨勪竴閮ㄥ垎鏉ヨ繍琛屻��(璇︾粏淇℃伅鍙傝17.4鑺傦紝鈥淢ySQL绨囩殑閰嶇疆鈥�锛�銆�
涓嬮潰鐨勮〃鏄剧ず浜�MySQL-Max浜岃繘鍒跺湪鍝釜骞冲彴涓婂寘鎷�BDB鍜�/鎴�NDB CLUSTER鏀寔锛�
|
绯荤粺 |
BDB鏀寔 |
NDB鏀寔 |
|
AIX 4.3 |
N |
N |
|
HP-UX 11.0 |
N |
N |
|
Linux-Alpha |
N |
Y |
|
Linux-IA-64 |
N |
N |
|
Linux-Intel |
Y |
Y |
|
Mac OS X |
N |
N |
|
NetWare |
N |
N |
|
SCO OSR5 |
Y |
N |
|
Solaris-SPARC |
Y |
Y |
|
Solaris-Intel |
N |
Y |
|
UnixWare |
Y |
N |
|
Windows NT/2000/XP |
Y |
N |
瑕佹兂鎵惧嚭浣犵殑鏈嶅姟鍣ㄦ敮鎸佸摢涓瓨鍌ㄥ紩鎿庯紝鎵ц涓嬮潰鐨勮鍙ワ細
mysql> SHOW ENGINES;
+------------+---------+----------------------------------------------------------------+
| Engine | Support | Comment |
+------------+---------+----------------------------------------------------------------+
| MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables |
| HEAP | YES | Alias for MEMORY |
| MERGE | YES | Collection of identical MyISAM tables |
| MRG_MYISAM | YES | Alias for MERGE |
| ISAM | NO | Obsolete storage engine, now replaced by MyISAM |
| MRG_ISAM | NO | Obsolete storage engine, now replaced by MERGE |
| InnoDB | YES | Supports transactions, row-level locking, and foreign keys |
| INNOBASE | YES | Alias for INNODB |
| BDB | YES | Supports transactions and page-level locking |
| BERKELEYDB | YES | Alias for BDB |
| NDBCLUSTER | NO | Clustered, fault-tolerant, memory-based tables |
| NDB | NO | Alias for NDBCLUSTER |
| EXAMPLE | NO | Example storage engine |
| ARCHIVE | YES | Archive storage engine |
| CSV | NO | CSV storage engine |
| FEDERATED | YES | Federated MySQL storage engine |
| BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) |
+------------+---------+----------------------------------------------------------------+
18 rows in set (0.00 sec)
(鍙﹀弬瑙�13.5.4.8鑺傦紝鈥淪HOW ENGINES璇硶鈥�锛�銆�
浣犺繕鍙互浣跨敤涓嬮潰鐨勮鍙ヤ唬鏇�SHOW ENGINES锛屽苟妫�鏌ヤ綘鎰熷叴瓒ｇ殑瀛樺偍寮曟搸鐨勫彉閲忓�硷細
mysql> SHOW VARIABLES LIKE 'have%';
+-----------------------+----------+
| Variable_name | Value |
+-----------------------+----------+
| have_archive | YES |
| have_bdb | NO |
| have_blackhole_engine | YES |
| have_compress | YES |
| have_crypt | YES |
| have_csv | YES |
| have_example_engine | NO |
| have_federated_engine | NO |
| have_geometry | YES |
| have_innodb | YES |
| have_isam | NO |
| have_ndbcluster | DISABLED |
| have_openssl | NO |
| have_partition_engine | YES |
| have_query_cache | YES |
| have_raid | NO |
| have_rtree_keys | YES |
| have_symlink | YES |
+-----------------------+----------+
18 rows in set (0.01 sec)
SHOW鍛戒护鐨勭簿纭緭鍑洪殢浣跨敤鐨�MySQL鐗堟湰(鍜屽惎鐢ㄧ殑鐗规��)鐨勪笉鍚岃�屾湁鍙樺寲銆傜2鍒楃殑鍊艰〃绀哄悇鐗规�ф敮鎸佺殑鏈嶅姟鍣ㄧ骇鍒紝濡備笅鎵�绀猴細
|
鍊� |
鍚箟 |
|
YES |
鏀寔璇ョ壒鎬у苟宸茬粡婵�娲汇�� |
|
NO |
涓嶆敮鎸佽鐗规�с�� |
|
DISABLED |
鏀寔璇ョ壒鎬т絾琚鐢ㄣ�� |
NO鍊艰〃绀虹紪璇戠殑鏈嶅姟鍣ㄤ笉鏀寔璇ョ壒鎬э紝鍥犳鍦ㄨ繍琛屾椂涓嶈兘婵�娲汇��
鍑虹幇DISABLED鍊兼槸鍥犱负鏈嶅姟鍣ㄥ惎鍔ㄦ椂璇ョ壒鎬ц绂佺敤锛屾垨娌℃湁缁欏嚭鍚敤瀹冪殑鎵�鏈夐�夐」銆傚湪鍚庝竴绉嶆儏鍐碉紝host_鍚�.err閿欒鏃ュ織鏂囦欢搴斿寘鍚閫夐」琚鐢ㄧ殑鍘熷洜銆�
濡傛灉鏈嶅姟鍣ㄦ敮鎸�InnoDB鎴�BDB瀛樺偍寮曟搸锛屼綘杩樺彲浠ョ湅瑙�DISABLED锛屼絾鍦ㄨ繍琛屽惎鍔ㄦ椂浣跨敤浜�--skip-innodb鎴�--skip-bdb閫夐」銆傚浜�NDB CLUSTER瀛樺偍寮曟搸锛�DISABLED琛ㄧず鏈嶅姟鍣ㄦ敮鎸�MySQL Cluster锛屼絾鍚姩鏃舵湭鍚敤--ndb-cluster閫夐」銆�
鎵�鏈�MySQL鏈嶅姟鍣ㄦ敮鎸�MyISAM琛紝鍥犱负MyISAM鏄� 榛樿瀛樺偍寮曟搸銆�
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start銆�stop鍜�report琛ㄧず浣犳兂瑕佹墽琛岀殑鎿嶄綔銆備綘鍙互鍦ㄥ崟涓湇鍔″櫒鎴栧涓湇鍔″櫒涓婃墽琛屾寚瀹氱殑鎿嶄綔锛屽彇鍐充簬閫夐」鍚嶅悗闈㈢殑GNR 鍒椼�傚鏋滄病鏈夎鍒楋紝mysqld_multi涓洪�夐」鏂囦欢涓殑鎵�鏈夋湇鍔″櫒鎵ц璇ユ搷浣溿��
姣忎釜GNR鍊间唬琛ㄤ竴涓�夐」缁勫彿鎴栫粍鍙疯寖鍥淬��GNR鍊煎簲涓洪�夐」鏂囦欢涓粍鍚嶆湯灏剧殑鍙枫�備緥濡傦紝缁�[mysqld17]鐨�GNR涓�17銆傝鎯虫寚瀹氱粍鍙风殑鑼冨洿锛岀敤鐮存姌鍙烽棿闅斿紑绗�1涓拰鏈�鍚�1涓彿銆�GNR鍊�10-13浠ｈ〃缁�[mysqld10]鍒�[mysqld13]銆傚彲浠ュ湪鍛戒护琛屼腑鎸囧畾澶氫釜缁勬垨缁勮寖鍥达紝鐢ㄩ�楀彿闂撮殧寮�銆�GNR鍒椾笉鑳芥湁绌烘牸瀛楃(绌烘牸鎴�tab)锛涚┖鏍煎瓧绗﹀悗闈㈢殑鍐呭灏嗚蹇界暐鎺夈��
璇ュ懡浠や娇鐢ㄩ�夐」缁�[mysqld17]鍚姩鍗曚釜鏈嶅姟鍣細
shell> mysqld_multi start 17
璇ュ懡浠ゅ仠姝㈠涓湇鍔″櫒锛屼娇鐢ㄩ�夐」缁�[mysql8]鍜�[mysqld10]鑷�[mysqld13]锛�
shell> mysqld_multi stop 8,10-13
浣跨敤璇ュ懡浠ゅ垪鍑鸿缃�夐」鏂囦欢鐨勭ず渚嬶細
shell> mysqld_multi --example
mysqld_multi鏀寔涓嬮潰鐨勯�夐」锛�
路 --config-file=name
鎸囧畾閫夐」鏂囦欢鍚嶃�傝繖鍏崇郴鍒�mysqld_multi浠庡摢閲屽鎵�[mysqldN]閫夐」缁勩�傛病鏈夎閫夐」锛屼粠閫氱敤my.cnf鏂囦欢璇绘墍鏈夐�夐」銆傞�夐」涓嶅奖鍝� mysqld_multi浠庡摢閲岃鍙栬嚜宸辩殑閫夐」锛屾�绘槸浠庨�氱敤my.cnf鏂囦欢鐨�[mysqld_multi]缁勮鍙栥��
路 --example
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路 --help
鏄剧ず甯姪娑堟伅骞堕��鍑恒��
路 --log=name
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路 --mysqladmin=prog_name
鐢ㄦ潵鍋滄鏈嶅姟鍣ㄧ殑mysqladmin浜岃繘鍒躲��
路 --mysqld=prog_name
鍙敤鐨�mysqld浜岃繘鍒躲�傝娉ㄦ剰浣犺繕鍙互灏嗚閫夐」鐨勫�兼寚瀹氫负mysqld_safe銆傞�夐」琚紶閫掔粰 mysqld銆�纭繚鍦�PATH鐜鍙橀噺璁惧畾鍊兼垨mysqld_safe涓湁mysqld鎵�鍦ㄧ洰褰曘��
路 --no-log
鎸夌収鏍囧噯杈撳嚭鎵撳嵃鏃ュ織淇℃伅锛屼笉瑕佸啓鍏ユ棩蹇楁枃浠躲�傞粯璁ゆ儏鍐典笅锛岃緭鍑哄啓鍏ユ棩蹇楁枃浠躲��
路 --password=password
璋冪敤mysqladmin鏃朵娇鐢ㄧ殑MySQL璐︽埛鐨勫瘑鐮併�傝娉ㄦ剰璇ュ瘑鐮佸�间笉鏄彲閫夐」锛屼笉璞″叾瀹�MySQL绋嬪簭銆�
路 --silent
绂佺敤璀﹀憡銆�
路 --tcp-ip
閫氳繃TCP/IP绔彛鑰屼笉鏄�Unix濂楁帴瀛楁枃浠舵潵杩炴帴姣忎釜MySQL鏈嶅姟鍣ㄣ��(濡傛灉鎵句笉鍒板鎺ュ瓧鏂囦欢锛� 鏈嶅姟鍣ㄤ粛鐒跺彲浠ヨ繍琛岋紝浣嗗彧鑳介�氳繃 TCP/IP绔彛璁块棶锛�銆�榛樿鎯呭喌涓嬶紝浣跨敤Unix濂楁帴瀛楁枃浠惰繘琛岃繛鎺ャ�傝閫夐」褰卞搷stop鍜�report鎿嶄綔銆�
路 --user=user_name
璋冪敤mysqladmin鏃朵娇鐢ㄧ殑MySQL璐︽埛鐨勭敤鎴峰悕銆�
路 --verbose
鏇磋缁嗐��
路 --version
鏄剧ず鐗堟湰淇℃伅骞堕��鍑恒��
鍏充簬mysqld_multi鐨勪竴浜涙敞瑙ｏ細
路 纭繚鍋滄mysqld鏈嶅姟鍣�(鐢�mysqladmin绋嬪簭)鐨�MySQL璐︽埛鍦ㄥ悇涓湇鍔″櫒涓殑鐢ㄦ埛鍚嶅拰瀵嗙爜鐩稿悓銆傚苟涓斿簲纭繚璐︽埛鍏锋湁SHUTDOWN鏉冮檺銆傚鏋滀綘鎯宠绠＄悊鐨勬湇鍔″櫒鐨勭鐞嗚处鎴锋湁璁稿涓嶅悓鐨勭敤鎴峰悕鎴栧瘑鐮侊紝浣犻渶瑕佸湪姣忎釜鏈嶅姟鍣ㄤ笂鍒涘缓涓�涓处鎴凤紝骞跺叿鏈夌浉鍚岀殑鐢ㄦ埛鍚嶅拰瀵嗙爜銆備緥濡傦紝浣犲彲浠ユ墽琛屼笅闈㈢殑鍛戒护涓烘瘡涓湇鍔″櫒璁剧疆涓�涓櫘閫�multi_admin璐︽埛锛�
路 shell> mysql -u root -S /tmp/mysql.sock -proot_password
路 mysql> GRANT SHUTDOWN ON *.*
路 -> TO 'multi_admin'@'localhost' IDENTIFIED BY 'multipass'锛�
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路 濡傛灉浣犱娇鐢�mysqld_safe鏉ュ惎鍔�mysqld(渚嬪锛�--mysqld=mysqld_safe)锛�--pid-file閫夐」寰堥噸瑕併�傛瘡涓�mysqld搴旀湁鑷繁鐨勮繘绋�ID鏂囦欢銆備娇鐢�mysqld_safe鑰屼笉浣跨敤mysqld鐨勫ソ澶勬槸mysqld_safe鈥�瀹堟姢鈥濆叾mysqld杩涚▼锛屽鏋滅敤kill 鈥�9鍙戦�佺殑淇″彿鎴栫敱浜庡叾瀹冨師鍥狅紙渚嬪鍒嗘鏁呴殰锛夎繘绋嬬粓姝紝鍒欓噸鍚繘绋嬨�傝娉ㄦ剰mysqld_safe鑴氭湰闇�瑕佷綘浠庢煇涓綅缃惎鍔ㄥ畠銆傝繖璇存槑杩愯mysqld_multi鍓嶄綘蹇呴』杩涘叆鏌愪釜鐩綍銆傚鏋滃惎鍔ㄦ椂鏈夐棶棰橈紝璇峰弬瑙�mysqld_safe鑴氭湰銆傜壒鍒槸瑕佹鏌ヤ笅鍒楄锛�
路 ----------------------------------------------------------------
路 MY_PWD=`pwd`
路 # Check if we are starting this relative (for the binary release)
路 if test -d $MY_PWD/data/mysql -a -f ./share/mysql/english/errmsg.sys -a \
路 -x ./bin/mysqld
路 ----------------------------------------------------------------
鍙傝5.1.3鑺傦紝鈥渕ysqld_safe锛歁ySQL鏈嶅姟鍣ㄥ惎鍔ㄨ剼鏈��銆備笂杩拌鎵ц鐨勬祴璇曞簲鎴愬姛锛屽惁鍒欎綘鍙兘閬囧埌浜嗛棶棰樸��
路 姣忎釜mysqld鐨�Unix濂楁帴瀛楁枃浠跺拰TCP/IP绔彛鍙峰繀椤讳笉鍚屻��
路 浣犲彲鑳芥兂瑕佷负mysqld浣跨敤--user閫夐」锛屼絾涓烘浣犻渶瑕佺敤Unix root鐢ㄦ埛杩愯mysqld_multi鑴氭湰銆傞�夐」鏂囦欢涓湁閫夐」涓嶈绱э紱濡傛灉浣犱笉鏄秴绾х敤鎴凤紝骞朵笖浣犵敤鑷繁鐨�Unix璐︽埛閲嶅惎mysqld杩涚▼锛屼綘鍙細寰楀埌璀﹀憡銆�
路 閲嶈锛氱‘淇�mysqld杩涚▼鍚姩鎵�鐢�Unix璐︽埛鍙互瀹屽叏璁块棶鏁版嵁鐩綍銆�涓嶈浣跨敤Unix root璐︽埛锛岄櫎闈炰綘鐭ラ亾浣犲湪鍋氫粈涔堛��
路 闈炲父閲嶈锛氫娇鐢�mysqld_multi鍓嶏紝纭繚鐞嗚В浼犻�掔粰mysqld鏈嶅姟鍣ㄧ殑閫夐」鐨勫惈涔変互鍙婁綘涓轰粈涔�鎯宠鐙珛鐨�mysqld杩涚▼銆傚簲娓呮 鍦ㄧ浉鍚岀殑鏁版嵁鐩綍涓嬩娇鐢ㄥ涓�mysqld鏈嶅姟鍣�鐨勫嵄闄┿�備娇鐢ㄥ崟鐙殑鏁版嵁鐩綍锛岄櫎闈炰綘鐭ラ亾浣犲湪鍋氫粈涔堛�傚湪绾跨▼绯荤粺涓紝鍦ㄧ浉鍚岀殑鏁版嵁鐩綍涓嬪惎鍔ㄥ涓湇鍔″櫒涓嶄細寰楀埌瓒呮�ц兘銆傚弬瑙�5.12鑺傦紝鈥滃湪鍚屼竴鍙版満鍣ㄤ笂杩愯澶氫釜MySQL鏈嶅姟鍣ㄢ��銆�
涓嬮潰鐨勭ず渚嬫樉绀轰簡浣犲浣曡缃�夐」鏂囦欢鏉ヤ娇鐢�mysqld_multi銆備笓闂ㄧ渷鍘荤1涓拰绗�5涓�[mysqldN]缁勬潵璇存槑浣犵殑閫夐」鏂囦欢鍙互绋嶆湁涓嶅悓銆傝繖鏍风粰浣犳洿澶х殑鐏垫椿鎬с��mysqld绋嬪簭閲嶅惎鎴栧仠姝㈢殑椤哄簭鐢卞畠浠湪閫夐」鏂囦欢涓殑椤哄簭鍐冲畾銆�
# This file should probably be in your home dir (~/.my.cnf)
# or /etc/my.cnf
# Version 2.1 by Jani Tolonen
[mysqld_multi]
mysqld = /usr/local/bin/mysqld_safe
mysqladmin = /usr/local/bin/mysqladmin
user = multi_admin
password = multipass
[mysqld2]
socket = /tmp/mysql.sock2
port = 3307
pid-file = /usr/local/mysql/var2/hostname.pid2
datadir = /usr/local/mysql/var2
language = /usr/local/share/mysql/english
user = john
[mysqld3]
socket = /tmp/mysql.sock3
port = 3308
pid-file = /usr/local/mysql/var3/hostname.pid3
datadir = /usr/local/mysql/var3
language = /usr/local/share/mysql/swedish
user = monty
[mysqld4]
socket = /tmp/mysql.sock4
port = 3309
pid-file = /usr/local/mysql/var4/hostname.pid4
datadir = /usr/local/mysql/var4
language = /usr/local/share/mysql/estonia
user = tonu
[mysqld6]
socket = /tmp/mysql.sock6
port = 3311
pid-file = /usr/local/mysql/var6/hostname.pid6
datadir = /usr/local/mysql/var6
language = /usr/local/share/mysql/japanese
user = jani
MySQL瀹炰緥绠＄悊鍣�(IM)鏄�氳繃TCP/IP绔彛杩愯鐨勫悗鍙扮▼搴忥紝鐢ㄦ潵鐩戣鍜岀鐞�MySQL鏁版嵁搴撴湇鍔″櫒瀹炰緥銆�MySQL瀹炰緥绠＄悊鍣� 閫傚悎Unix-绫绘搷浣滅郴缁熷拰Windows銆�
鍙互鍦�mysqld_safe鑴氭湰浣跨敤MySQL瀹炰緥绠＄悊鍣ㄦ潵鍚姩鍜屽仠姝�MySQL鏈嶅姟鍣紝鐢氳嚦鍙互浠庝竴涓繙绋嬩富鏈�銆�MySQL瀹炰緥绠＄悊鍣ㄨ繕鎵цmysqld_multi鑴氭湰鐨勫姛鑳�(鍜屽ぇ澶氭暟璇硶)銆備笅闈负MySQL瀹炰緥绠＄悊鍣ㄧ殑璇︾粏鎻忚堪銆�
涓�鑸儏鍐碉紝鐢�mysql.server鑴氭湰鍚姩MySQL Database Server锛�MySQL鏁版嵁搴撴湇鍔″櫒锛夛紝閫氬父椹荤暀鍦�/etc/init.d/ 鏂囦欢澶广�傞粯璁ゆ儏鍐典笅璇ヨ剼鏈皟鐢�mysqld_safe鑴氭湰銆備絾鏄紝浣犲彲浠ュ湪鑴氭湰涓皢use_mysqld_safe鍙橀噺璁剧疆涓�0(闆�)浠ヤ究浣跨敤MySQL瀹炰緥绠＄悊鍣ㄦ潵鍚姩鏈嶅姟鍣ㄣ��
鍦ㄨ繖绉嶆儏鍐典笅锛�Instance Manager鐨勮涓哄彇鍐充簬MySQL閰嶇疆鏂囦欢涓殑閫夐」銆傚鏋滄病鏈夐厤缃枃浠讹紝MySQL瀹炰緥绠＄悊鍣ㄥ垱寤�mysqld瀹炰緥骞惰瘯鍥剧敤榛樿(缂栬瘧宓屽叆鐨�)閰嶇疆鏉ュ惎鍔ㄣ�傝繖璇存槑濡傛灉mysqld娌℃湁瀹夎鍒� 榛樿浣嶇疆锛�IM涓嶈兘鐚滃嚭瀹冪殑浣嶇疆銆傚鏋滀綘宸茬粡鍦ㄩ潪鏍囧噯浣嶇疆瀹夎浜�MySQL鏈嶅姟鍣紝浣犲簲浣跨敤閰嶇疆鏂囦欢銆傚弬瑙�2.1.5鑺傦紝鈥滃畨瑁呭竷灞�鈥�銆�
濡傛灉鏈夐厤缃枃浠讹紝IM灏嗗垎鏋愰厤缃枃浠舵悳绱�[mysqld]閮ㄥ垎(渚嬪[mysqld]銆�[mysqld1]銆�[mysqld2]绛�)銆傛瘡涓儴鍒嗘寚瀹氫竴涓疄渚嬨�傚惎鍔ㄦ椂IM灏嗗惎鍔ㄦ墍鏈夋壘鍒扮殑瀹炰緥銆�IM鍏抽棴鏃堕粯璁ゅ仠姝㈡墍鏈夊疄渚嬨��
璇锋敞鎰忔湁涓�涓壒娈婇�夐」mysqld-path(mysqld-path = path-to-mysqld- binary)锛屽彧鑳界敤IM璇嗗埆銆備娇鐢ㄨ鍙橀噺璁�IM鐭ラ亾mysqld浜岃繘鍒堕┗鐣欏湪鍝効銆備綘杩樺簲璇ヤ负鏈嶅姟鍣ㄨ缃�basedir鍜�datadir閫夐」銆�
鍚敤MySQL瀹炰緥绠＄悊鍣ㄧ殑鍏稿瀷MySQL鏈嶅姟鍣ㄥ惎鍔�/鍏抽棴寰幆涓猴細
路 鐢�/etc/init.d/mysql鑴氭湰鍚姩MySQL瀹炰緥绠＄悊鍣ㄣ��
路 MySQL瀹炰緥绠＄悊鍣ㄥ惎鍔ㄦ墍鏈夊疄渚嬪苟鐩戣瀹冧滑銆�
路 濡傛灉鏌愪釜鏈嶅姟鍣ㄥ疄渚嬪け璐ワ紝MySQL瀹炰緥绠＄悊鍣ㄩ噸鍚畠銆�
路 濡傛灉MySQL瀹炰緥绠＄悊鍣ㄨ鍏抽棴(渚嬪鐢�/etc/init.d/mysql stop鍛戒护)锛屾墍鏈夊疄渚嬭MySQL瀹炰緥绠＄悊鍣ㄥ叧闂��
浣跨敤MySQL瀹㈡埛绔�-鏈嶅姟鍣ㄥ崗璁潵澶勭悊鍚�MySQL瀹炰緥绠＄悊鍣ㄤ箣闂寸殑閫氫俊銆備綘涓嶈兘浣跨敤鏍囧噯mysql瀹㈡埛绔▼搴忓拰MySQL C API鏉ヨ繛鎺�IM銆�IM鏀寔瀹㈡埛绔伐鍏峰拰mysql-4.1鎴栦互鍚庣殑鐗堟湰鎵�鍒嗗彂鐨勫簱鎵�鐢ㄧ殑MySQL瀹㈡埛绔�-鏈嶅姟鍣ㄥ崗璁増鏈��
IM灏嗙敤鎴蜂俊鎭繚瀛樺埌瀵嗙爜鏂囦欢涓�傚瘑鐮佹枃浠剁殑榛樿浣嶇疆涓�/etc/mysqlmanager.passwd銆�
瀵嗙爜搴旂被浼间簬锛�
petr:*35110DC9B4D8140F5DE667E28C72DD2597B5C848
瑕佹兂鐢熸垚瀵嗙爜鐢�--passwd閫夐」璋冪敤IM銆傚垯杈撳嚭鍙互閲嶅畾鍚戝埌/etc/mysqlmanager.passwd鏂囦欢浠ユ坊鍔犳柊鐢ㄦ埛銆備笅闈负绀轰緥鍛戒护銆�
./mysqlmanager --passwd >> /etc/mysqlmanager.passwd
Creating record for new user.
Enter user name: mike
Enter password: <password>
Re-type password: <password>
涓嬮潰鐨勮灏嗗姞鍒�/etc/mysqlmanager.passwd锛�
mike:*00A51F3F48415C7D4E8908980D443C29C69B60C9
濡傛灉/etc/mysqlmanager.passwd鏂囦欢涓病鏈夎鏉★紝鍒欎笉鑳借繛鎺�IM銆�
路 --help锛�-?
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路 --bind-address=name
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路 --default-mysqld-path=name
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路 --defaults-file=file_name
浠庣粰瀹氭枃浠惰Instance Manager鍜�MySQL鏈嶅姟鍣ㄨ瀹氬�笺�傛墍鏈�Instance Manager鏇存敼鐨勯厤缃皢鍔犲叆璇ユ枃浠躲�傚彧鑳界敤浜�Instance Manager鐨勭涓�閫夐」銆�
路 --install
鍦�Windows涓紝灏�Instance Manager瀹夎涓�Windows鏈嶅姟銆�
路 --log=name
IM鏃ュ織鏂囦欢鐨勮矾寰勩�傜粨鍚�--run-as-service閫夐」浣跨敤銆�
路 --monitoring-interval=Seconds
鐩戣瀹炰緥鐨勯棿闅旓紝鍗曚綅涓虹銆�Instance Manager灏嗗皾璇曡繛鎺ユ瘡涓洃瑙嗙殑瀹炰緥鏉ユ鏌ュ畠浠槸鍚︽槸娲诲姩鐨�/娌℃湁鎸傝捣銆傚嚭鐜版晠闅滐紝IM灏嗛噸鍚嚑娆�(瀹為檯涓婃槸澶氭)瀹炰緥銆傚彲浠ョ敤nonguarded閫夐」涓虹壒瀹氬疄渚嬬鐢ㄨ琛屼负銆傚鏋滄湭缁欏畾浠讳綍鍊硷紝 榛樿浣跨敤20绉掋��
路 --passwd锛�-P
缂栧啓passwd鏂囦欢骞堕��鍑恒��
路 --password-file=name
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路 --pid-file=name
浣跨敤鐨勮繘绋�ID鏂囦欢銆傞粯璁ゆ儏鍐典笅锛岃鏂囦欢鏂囦欢鍚嶄负mysqlmanager.pid銆�
路 -- port=port_num
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路 --print-defaults
鎵撳嵃褰撳墠鐨勯粯璁ゅ�煎苟閫�鍑恒�傚彧鑳界敤浣�Instance Manager鐨勭涓�閫夐」銆�
路 --remove
鍦�Windows涓紝鍒犳帀Instance Manager Windows鏈嶅姟銆傚亣瀹氬墠闈㈠凡缁忕敤--install杩愯浜�Instance Manager銆�
路 --run-as-service
浣垮畬鍠勮繘绋嬪彉涓哄悗鍙扮▼搴忓苟鍚姩銆傚畬鍠勮繘绋嬪緢绠�鍗曪紝涓嶆槗宕╂簝銆傚嚭鐜版晠闅滃悗瀹冨皢鑷繁閲嶅惎IM銆�
路 --socket=name
Unix涓敤浜庤繛鎺ョ殑濂楁帴瀛楁枃浠躲�傞粯璁ゆ儏鍐典笅锛屾枃浠跺悕涓�/tmp/mysqlmanager.sock銆�
路 --standalone
鍦�Windows涓互鍗曟満妯″紡杩愯Instance Manager銆�
路 --user=name
鍚姩骞惰繍琛�mysqlmanager鐨勭敤鎴峰悕銆傚缓璁娇鐢ㄨ繍琛�mysqld鏈嶅姟鍣�鐨勭敤鎴疯处鎴锋潵杩愯mysqlmanager銆�
路 --version, -V
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# MySQL Instance Manager options section
[manager]
default-mysqld-path = /usr/local/mysql/libexec/mysqld
socket=/tmp/manager.sock
pid-file=/tmp/manager.pid
password-file = /home/cps/.mysqlmanager.passwd
monitoring-interval = 2
port = 1999
bind-address = 192.168.1.5
MySQL瀹炰緥绠＄悊鍣ㄥ彧鍦�Unix涓鍙栧苟绠＄悊/etc/my.cnf鏂囦欢銆傚湪Windows涓紝MySQL瀹炰緥绠＄悊鍣ㄤ粠Instance Manager鐨勫畨瑁呯洰褰曡鍙�my.ini鏂囦欢銆傜敤--defaults-file=file_ name閫夐」鍙互鏇存敼榛樿閫夐」鏂囦欢鐨勪綅缃��
瀹炰緥閮ㄥ垎鎸囧畾鍚姩鏃剁粰姣忎釜瀹炰緥鐨勯�夐」銆傝繖浜涗富瑕佹槸鏅��MySQL鏈嶅姟鍣ㄩ�夐」锛屼絾鏈変竴浜�IM-涓撶敤閫夐」锛�
路 mysqld-path = <path-to-mysqld-binary>
mysqld鏈嶅姟鍣�浜岃繘鍒剁殑璺緞銆�
路 shutdown-delay = Seconds
IM搴旂瓑寰呭疄渚嬪叧闂殑绉掓暟銆� 榛樿涓�35绉掋�傝秴杩囧欢杩熸椂闂村悗锛�IM鍋囧畾瀹炰緥姝ｆ寕璧峰苟璇曞浘鈥�kill 鈥�9鈥�瀹冦�傚鏋滀綘浣跨敤甯�large琛ㄧ殑InnoDB锛屼綘搴斿綋澧炲姞璇ュ�笺��
路 nonguarded
濡傛灉浣犳兂瑕佷负鏌愪釜瀹炰緥绂佺敤IM鐩戣鍔熻兘锛屽簲璁剧疆璇ラ�夐」銆�
涓嬮潰缁欏嚭浜嗗嚑涓疄渚嬬ず渚嬨��
[mysqld]
mysqld-path=/usr/local/mysql/libexec/mysqld
socket=/tmp/mysql.sock
port=3307
server_id=1
skip-stack-trace
core-file
skip-bdb
log-bin
log-error
log=mylog
log-slow-queries
[mysqld2]
nonguarded
port=3308
server_id=2
mysqld-path= /home/cps/mysql/trees/mysql-5.1/sql/mysqld
socket = /tmp/mysql.sock5
pid-file = /tmp/hostname.pid5
datadir= /home/cps/mysql_data/data_dir1
language=/home/cps/mysql/trees/mysql-5.1/sql/share/english
log-bin
log=/tmp/fordel.log
5.2.5. MySQL瀹炰緥绠＄悊鍣ㄨ瘑鍒殑鍛戒护
路 START INSTANCE <instance_name>
璇ュ懡浠ゅ皢璇曞浘鍚姩涓�涓疄渚嬶細
mysql> START INSTANCE mysqld4;
Query OK, 0 rows affected (0,00 sec)
路 STOP INSTANCE <instance_name>
灏嗚瘯鍥惧仠姝竴涓疄渚嬶細
mysql> STOP INSTANCE mysqld4;
Query OK, 0 rows affected (0,00 sec)
路 SHOW INSTANCES
鏄剧ず鎵�鏈夎浇鍏ョ殑瀹炰緥鍚嶏細
mysql> show instances;
+---------------+---------+
| instance_name | status |
+---------------+---------+
| mysqld3 | offline |
| mysqld4 | online |
| mysqld2 | offline |
+---------------+---------+
3 rows in set (0,04 sec)
路 SHOW INSTANCE STATUS <instance_name>
鏄剧ず閫夊畾鐨勫疄渚嬬殑鐘舵�佸拰鐗堟湰淇℃伅锛�
mysql> SHOW INSTANCE STATUS mysqld3;
+---------------+--------+---------+
| instance_name | status | version |
+---------------+--------+---------+
| mysqld3 | online | unknown |
+---------------+--------+---------+
1 row in set (0.00 sec)
路 SHOW INSTANCE OPTIONS <instance_name>
鏄剧ず瀹炰緥浣跨敤鐨勯�夐」锛�
mysql> SHOW INSTANCE OPTIONS mysqld3;
+---------------+---------------------------------------------------+
| option_name | value |
+---------------+---------------------------------------------------+
| instance_name | mysqld3 |
| mysqld-path | /home/cps/mysql/trees/mysql-4.1/sql/mysqld |
| port | 3309 |
| socket | /tmp/mysql.sock3 |
| pid-file | hostname.pid3 |
| datadir | /home/cps/mysql_data/data_dir1/ |
| language | /home/cps/mysql/trees/mysql-4.1/sql/share/english |
+---------------+---------------------------------------------------+
7 rows in set (0.01 sec)
路 SHOW <instance_name> LOG FILES
璇ュ懡浠ゆ彁渚涘疄渚嬩娇鐢ㄧ殑鎵�鏈夋棩蹇楁枃浠躲�傜粨鏋滃寘鍚棩蹇楁枃浠剁殑璺緞鍜屾棩蹇楁枃浠剁殑澶у皬銆傚鏋滄病鏈夊湪閰嶇疆鏂囦欢涓寚瀹氭棩蹇楁枃浠剁殑璺緞 (渚嬪log=/var/mysql.log)锛�IM璇曞浘鐚滃嚭瀹冪殑浣嶇疆銆傚鏋�IM涓嶈兘鐚滃嚭鏃ュ織鏂囦欢鐨勪綅缃紝浣犲簲鏄庣‘鎸囧畾鏃ュ織鏂囦欢鐨勪綅缃��
mysql> SHOW mysqld LOG FILES;
+-------------+------------------------------------+----------+
| Logfile | Path | Filesize |
+-------------+------------------------------------+----------+
| ERROR LOG | /home/cps/var/mysql/owlet.err | 9186 |
| GENERAL LOG | /home/cps/var/mysql/owlet.log | 471503 |
| SLOW LOG | /home/cps/var/mysql/owlet-slow.log | 4463 |
+-------------+------------------------------------+----------+
3 rows in set (0.01 sec)
路 SHOW <instance_name> LOG {ERROR | SLOW | GENERAL} size[,offset_from_end]
璇ュ懡浠ゆ煡鎵炬寚瀹氱殑鏃ュ織鏂囦欢鐨勪竴閮ㄥ垎銆傚洜涓哄ぇ澶氭暟鐢ㄦ埛鍏虫敞鏈�鏂扮殑鏃ュ織娑堟伅锛岀敤size鍙傛暟瀹氫箟浣犳兂瑕佷粠鏃ュ織鏈熬寮�濮嬬储鍙栫殑瀛楄妭鏁般�備綘鍙互鎸囧畾鍙��offset_from_end鍙傛暟浠庢棩蹇楁枃浠朵腑閮ㄧ储鍙栨暟鎹�備笅闈㈢殑绀轰緥鍙互绱㈠彇21涓瓧鑺傜殑鏁版嵁锛屼粠鏃ュ織鏂囦欢鏈熬寮�濮�23涓瓧鑺傦紝2涓瓧鑺傜敤浜庣粨鏉燂細
mysql> SHOW mysqld LOG GENERAL 21, 2;
+---------------------+
| Log |
+---------------------+
| using password: YES |
+---------------------+
1 row in set (0.00 sec)
路 SET instance_name.option_name=option_value
璇ュ懡浠ょ紪杈戞寚瀹氱殑瀹炰緥鐨勯厤缃枃浠朵互鏇存敼/澧炲姞瀹炰緥閫夐」銆�IM鍋囧畾閰嶇疆鏂囦欢浣嶄簬/etc/my.cnf銆備綘搴旀鏌ユ枃浠舵槸鍚﹀瓨鍦紝骞跺叿鏈夊悎閫傜殑鏉冮檺銆�
mysql> SET mysqld2.port=3322;
Query OK, 0 rows affected (0.00 sec)
鍦�MySQL鏈嶅姟鍣ㄩ噸鍚墠锛屽閰嶇疆鏂囦欢杩涜鐨勬洿鏀逛笉浼氱敓鏁堛�傚苟涓旓紝鎵цFLUSH INSTANCES鍛戒护鍚庯紝鎵嶄細灏嗚繖浜涙洿鏀逛繚瀛樺埌Instance Manager鐨勫疄渚嬭瀹氬�肩殑鏈湴缂撳瓨涓��
路 UNSET instance_name.option_name
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mysql> UNSET mysqld2.port;
Query OK, 0 rows affected (0.00 sec)
鍦�MySQL鏈嶅姟鍣ㄩ噸鍚墠锛屽閰嶇疆鏂囦欢杩涜鐨勬洿鏀逛笉浼氱敓鏁堛�傚苟涓旓紝鎵цFLUSH INSTANCES鍛戒护鍚庯紝鎵嶄細灏嗚繖浜涙洿鏀逛繚瀛樺埌Instance Manager鐨勫疄渚嬭瀹氬�肩殑鏈湴缂撳瓨涓��
路 FLUSH INSTANCES
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mysql> FLUSH INSTANCES;
Query OK, 0 rows affected (0.04 sec)
5.3. mysqld锛歁ySQL鏈嶅姟鍣�
褰撳惎鍔�mysqld鏈嶅姟鍣�鏃讹紝浣犲彲浠ヤ娇鐢�4.3鑺傦紝鈥滄寚瀹氱▼搴忛�夐」鈥�涓弿杩扮殑鏂规硶鎸囧畾绋嬪簭閫夐」銆傛渶甯哥敤鐨勬柟娉曟槸鍦ㄩ�夐」鏂囦欢涓垨鍦ㄥ懡浠よ鎻愪緵閫夐」銆備絾鏄紝鍦ㄥぇ澶氭暟鎯呭喌涓嬶紝甯屾湜鏈嶅姟鍣ㄦ瘡娆¤繍琛屾椂浣跨敤鐩稿悓鐨勯�夐」銆傛渶濂界殑鏂规硶鏄‘淇濆皢瀹冧滑鍒楀湪閫夐」鏂囦欢涓�傚弬瑙�4.3.2鑺傦紝鈥滀娇鐢ㄩ�夐」鏂囦欢鈥�銆�
mysqld浠�[mysqld]鍜�[server]缁勮鍙栭�夐」銆�mysqld_safe浠�[mysqld]銆�[server]銆�[mysqld_safe]鍜�[safe_mysqld]缁勮鍙栭�夐」銆�mysql.server浠� [mysqld]鍜�[mysql.server]缁勮鍙栭�夐」銆傚祵鍏ュ紡MySQL鏈嶅姟鍣ㄩ�氬父浠�[server]銆�[embedded]鍜�[xxxxx_SERVER]缁勮鍙栭�夐」锛屽叾涓�xxxxx鏄湇鍔″櫒宓屽叆鐨勫簲鐢ㄧ▼搴忓悕銆�
mysqld鎺ュ彈璁稿鍛戒护琛岄�夐」銆傛墽琛�mysqld --help鍙互绠�鍗曞垪鍑烘潵銆傝鎯崇湅鍏ㄩ儴鍒楄〃鍒楋紝浣跨敤鍛戒护mysqld --verbose --help銆�
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路 褰卞搷瀹夊叏鐨勯�夐」锛氬弬瑙�5.6.3鑺傦紝鈥淢ysqld瀹夊叏鐩稿叧鍚姩閫夐」鈥�銆�
路 SSL-鐩稿叧閫夐」锛氬弬瑙�5.8.7.6鑺傦紝鈥淪SL鍛戒护琛岄�夐」鈥�銆�
路 浜岃繘鍒舵棩蹇楁帶鍒堕�夐」锛氬弬瑙�5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆�
路 澶嶅埗鐩稿叧閫夐」锛氬弬瑙�6.8鑺傦紝鈥滃鍒跺惎鍔ㄩ�夐」鈥�銆�
路 鐗瑰畾瀛樺偍寮曟搸鐩稿叧閫夐」锛氬弬瑙�15.1.1鑺傦紝鈥淢yISAM鍚姩閫夐」鈥�銆�15.5.3鑺傦紝鈥淏DB鍚姩閫夐」鈥�鍜�15.2.4鑺傦紝鈥淚nnoDB鍚姩閫夐」鈥�銆�
浣犺繕鍙互灏嗗彉閲忓悕浣滀负涓�涓�夐」锛岃缃湇鍔″櫒绯荤粺鍙橀噺鐨勫�硷紝濡傛湰鑺傚悗闈㈡墍杩般��
路 --help锛�-?
鏄剧ず绠�鐭殑甯姪娑堟伅骞堕��鍑恒�備娇鐢�--verbose鍜�--help閫夐」鏉ョ湅鍏ㄩ儴鍐呭銆�
路 --allow-suspicious-udfs
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路 --ansi
浣跨敤鏍囧噯(ANSI)SQL璇硶浠ｆ浛MySQL璇硶銆傚弬瑙�1.8.3鑺傦紝鈥滃湪ANSI妯″紡涓嬭繍琛孧ySQL鈥�銆備娇鐢�--sql-mode閫夐」鍙互鏇寸簿纭帶鍒舵湇鍔″櫒SQL妯″紡銆�
路 --basedir=path, -b path
MySQL瀹夎鐩綍鐨勮矾寰勩�傞�氬父鎵�鏈夎矾寰勬牴鎹璺緞鏉ヨВ鏋愩��
路 --bind-address=IP
寰呯粦瀹氱殑IP鍦板潃銆�
路 --bootstrap
mysql_install_db鑴氭湰浣跨敤璇ラ�夐」鏉ュ垱寤�MySQL鎺堟潈琛紝涓嶉渶瑕佸惎鍔�MySQL鏈嶅姟鍣ㄣ��
路 --console
灏嗛敊璇棩蹇楁秷鎭啓鍏�stderr鍜�stdout锛屽嵆浣挎寚瀹氫簡--log-error銆傚湪Windows涓紝濡傛灉浣跨敤璇ラ�夐」锛�mysqld涓嶅叧闂帶鍒跺彴绐楀彛銆�
路 --character-sets-dir=path
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路 --chroot=path
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路 --character-set-server=charset
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路 --core-file
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路 --collation-server=collation
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路 --datadir=path, -h path
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路 --debug[=debug_options], -# [debug_options]
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路 (DEPRECATED) --default-character-set=charset
浣跨敤char璁剧疆浣滀负 榛樿瀛楃闆嗐�傜敱浜�--character-set-server锛屽弽瀵逛娇鐢ㄨ閫夐」銆傚弬瑙�5.10.1鑺傦紝鈥滄暟鎹拰鎺掑簭鐢ㄥ瓧绗﹂泦鈥�銆�
路 --default-collation=collation
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路 --default-storage-engine=type
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路 --default-table-type=type
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路 --default-time-zone=type
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路 --delay-key-write[= OFF | ON | ALL]
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路 --des-key-file=file_name
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路 --enable-named-pipe
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路 --exit-info[=flags], -T [flags]
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路 --external-locking
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o 涓嶅簲鍦ㄥ叡浜〃涓娇鐢�--delay-key-write=ALL鎴�DELAY_KEY_WRITE=1銆�
鏈�绠�鍗曠殑鏂规硶鏄粨鍚堜娇鐢�--external-locking鍜�--delay-key-write=OFF --query-cache-size=0銆�
(榛樿涓嶈兘瀹炵幇锛屽洜涓哄湪璁稿璁剧疆涓紝缁撳悎浣跨敤涓婅堪閫夐」寰堟湁鐢級銆�
路 --flush
鎵цSQL璇彞鍚庡悜纭洏涓婃竻绌烘洿鏀广�備竴鑸儏鍐垫墽琛�SQL璇彞鍚� MySQL鍚戠‖鐩樺啓鍏ユ墍鏈夋洿鏀癸紝璁╂搷浣滅郴缁熷鐞嗕笌纭洏鐨勫悓姝ャ�傚弬瑙�A.4.2鑺傦紝鈥滃鏋淢ySQL渚濈劧宕╂簝锛屽簲浣滀簺浠�涔堚��銆�
路 --init-file=file
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路 --language=lang_name, -L lang_name
鐢ㄧ粰瀹氳瑷�缁欏嚭瀹㈡埛绔敊璇秷鎭��lang_name鍙互涓鸿瑷�鍚嶆垨璇█鏂囦欢瀹夎鐩綍鐨勫叏璺緞鍚嶃�傚弬瑙�5.10.2鑺傦紝鈥滆缃敊璇秷鎭瑷�鈥�銆�
路 --large-pages
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鍦�Linux涓彲浠ヤ娇鐢ㄥぇ椤甸潰鍓嶏紝闇�瑕侀厤缃�HugeTLB鍐呭瓨姹犮�傚弬鑰�Linux鍐呮牳婧愮爜涓殑hugetlbpage.txt鏂囦欢銆�
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路 ---log[=file], -l [file]
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路 --log-bin=[file]
浜岃繘鍒舵棩蹇楁枃浠躲�傚皢鏇存敼鏁版嵁鐨勬墍鏈夋煡璇㈣鍏ヨ鏂囦欢銆傜敤浜庡浠藉拰澶嶅埗銆傚弬瑙�5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆傚缓璁寚瀹氫竴涓枃浠跺悕(鍘熷洜鍙傝A.8.1鑺傦紝鈥淢ySQL涓殑鎵撳紑浜嬪疁鈥�)锛屽惁鍒�MySQL浣跨敤host_name-bin浣滀负鏃ュ織鏂囦欢鍩烘湰鍚嶃��
路 --log-bin-index[=file]
浜岃繘鍒舵棩蹇楁枃浠跺悕鐨勭储寮曟枃浠躲�傚弬瑙�5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆傚鏋滀綘涓嶆寚瀹氭枃浠跺悕锛屽苟涓斿鏋滀綘娌℃湁鍦�--log-bin涓寚瀹氾紝MySQL浣跨敤host_name-bin.index浣滀负鏂囦欢鍚嶃��
路 --log-bin-trust-routine-creators[={0|1}]
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路 --log-error[=file]
璇ユ枃浠剁殑鏃ュ織閿欒鍜屽惎鍔ㄦ秷鎭�傚弬瑙�5.11.1鑺傦紝鈥滈敊璇棩蹇椻��銆傚鏋滀綘涓嶆寚瀹氭枃浠跺悕锛�MySQL浣跨敤host_name.err浣滀负鏂囦欢鍚嶃�傚鏋滄枃浠跺悕娌℃湁鎵╁睍鍚嶏紝鍒欏姞涓�.err鎵╁睍鍚嶃��
路 --log-isam[=file]
灏嗘墍鏈�MyISAM鏇存敼璁板叆璇ユ枃浠�(鍙湁璋冭瘯MyISAM鏃舵墠浣跨敤)銆�
路 (DEPRECATED) --log-long-format
璁板綍婵�娲荤殑鏇存柊鏃ュ織銆佷簩杩涘埗鏇存柊鏃ュ織銆佸拰鎱㈡煡璇㈡棩蹇楃殑澶ч噺淇℃伅銆備緥濡傦紝鎵�鏈夋煡璇㈢殑鐢ㄦ埛鍚嶅拰鏃堕棿鎴冲皢璁板綍涓嬫潵銆備笉璧炴垚閫夌敤璇ラ�夐」锛屽洜涓哄畠鐜板湪浠ｈ〃 榛樿璁板綍琛屼负銆�(鍙傝--log-short-format鎻忚堪锛�銆�--log-queries-not-using-indexes閫夐」閫傚悎灏嗘湭浣跨敤绱㈠紩鐨勬煡璇㈣褰曞埌鎱㈡煡璇㈡棩蹇椾腑銆�
路 --log-queries-not-using-indexes
濡傛灉浣犵粨鍚�--log-slow-queries浣跨敤璇ラ�夐」锛屾湭浣跨敤绱㈠紩鐨勬煡璇篃琚褰曞埌鎱㈡煡璇㈡棩蹇椾腑銆傚弬瑙�5.11.4鑺傦紝鈥滄參閫熸煡璇㈡棩蹇椻��銆�
路 --log-short-format
璁板綍婵�娲荤殑鏇存柊鏃ュ織銆佷簩杩涘埗鏇存柊鏃ュ織銆佸拰鎱㈡煡璇㈡棩蹇楃殑灏戦噺淇℃伅銆備緥濡傦紝鐢ㄦ埛鍚嶅拰鏃堕棿鎴充笉璁板綍涓嬫潵銆�
路 ---log-slow-admin-statements
灏嗘參绠＄悊璇彞渚嬪OPTIMIZE TABLE銆�ANALYZE TABLE鍜�ALTER TABLE璁板叆鎱㈡煡璇㈡棩蹇椼��
路 --log-slow-queries[=file]
灏嗘墍鏈夋墽琛屾椂闂磋秴杩�long_query_time 绉掔殑鏌ヨ璁板叆璇ユ枃浠躲�傚弬瑙�5.11.4鑺傦紝鈥滄參閫熸煡璇㈡棩蹇椻��銆傝缁嗕俊鎭弬瑙�--log-long-format鍜�--log-short-format閫夐」鎻忚堪銆�
路 --log-warnings, -W
灏嗚鍛婁緥濡�Aborted connection...鎵撳嵃鍒伴敊璇棩蹇椼�傚缓璁惎鐢ㄨ閫夐」锛屼緥濡傦紝濡傛灉浣犱娇鐢ㄥ鍒� (浣犲彲浠ュ緱鍒板叧浜庢墍鍙戠敓浜嬫儏鐨勮缁嗕俊鎭紝渚嬪鍏充簬缃戠粶鏁呴殰鍜岄噸鏂拌繛鎺ョ殑娑堟伅)銆傞粯璁ゆ儏鍐典笅鍚敤璇ラ�夐」锛涜鎯崇鐢ㄥ畠锛屼娇鐢�--skip-log-warnings銆備腑鏂殑杩炴帴涓嶄細璁板叆閿欒鏃ュ織锛岄櫎闈炲�煎ぇ浜�1銆傚弬瑙�A.2.10鑺傦紝鈥滈�氫俊閿欒鍜屽け鏁堣繛鎺モ��銆�
路 --low-priority-updates
琛ㄤ慨鏀�(INSERT, REPLACE, DELETE, UPDATE)姣旈�夋嫨鐨勪紭鍏堢骇瑕佷綆銆備篃鍙互閫氳繃{INSERT | REPLACE | DELETE | UPDATE} LOW_PRIORITY ... 鏉ラ檷浣庢煇涓煡璇㈢殑浼樺厛绾ф潵瀹炵幇锛屾垨閫氳繃SET LOW_PRIORITY_UPDATES=1鏉ユ洿鏀逛竴涓嚎绋嬬殑浼樺厛绾с�傚弬瑙�7.3.2鑺傦紝鈥滆〃閿佸畾浜嬪疁鈥�銆�
路 --memlock
灏�mysqld 杩涚▼閿佸畾鍦ㄥ唴瀛樹腑銆傚湪鏀寔mlockall()绯荤粺璋冪敤鐨勭郴缁熶笂鏈夋晥锛屼緥濡�Solaris銆傚鏋滄搷浣滅郴缁熶娇mysqld鍦ㄧ‖鐩樹笂浜ゆ崲鏃跺嚭鐜伴棶棰橈紝鍙互涓轰綘鎻愪緵甯姪銆傝娉ㄦ剰浣跨敤璇ラ�夐」鏃堕渶瑕佷互root杩愯鏈嶅姟鍣紝浣嗕粠瀹夊叏鑰冭檻骞朵笉鏄竴涓ソ娉ㄦ剰銆�
路 --myisam-recover [=option[,option...]]]
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DEFAULT |
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BACKUP |
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FORCE |
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QUICK |
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路 --ndb-connectstring=connect_string
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路 --ndbcluster
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路 --old-passwords
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路 --one-thread
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路 --open-files-limit=count
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路 --pid-file=path
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路 --port=port_num, -P port_num
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路 --safe-mode
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路 (DEPRECATED) --safe-show-database
路 --safe-user-create
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路 --secure-auth
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路 --shared-memory
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路 --shared-memory-base-name=name
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路 --skip-bdb
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路 --skip-concurrent-insert
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路 --skip-external-locking
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路 --skip-grant-tables
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路 --skip-host-cache
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路 --skip-innodb
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路 --skip-name-resolve
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路 --skip-ndbcluster
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路 --skip-networking
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路 --standalone
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路 --symbolic-links, --skip-symbolic-links
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路 --skip-safemalloc
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路 --skip-show-database
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路 --skip-stack-trace
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路 --skip-thread-priority
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路 --sql-mode=value[,value[,value...]]
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路 --temp-pool
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路 --transaction-isolation=level
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路 --tmpdir=path, -t path
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路 --user={user_name | user_id}, -u {user_name | user_id}
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路 --version, -V
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5.3.3鑺傦紝鈥滄湇鍔″櫒绯荤粺鍙橀噺鈥�瀹屽叏鎻忚堪浜嗗叏閮ㄧ郴缁熷彉閲忋�傝皟鑺傛湇鍔″櫒鍙傛暟閮ㄥ垎鍖呮嫭濡備綍瀵逛粬浠繘琛屼紭鍖栥�傚弬瑙�7.5.2鑺傦紝鈥滆皟鑺傛湇鍔″櫒鍙傛暟鈥�銆�
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妯″紡瀹氫箟MySQL搴旀敮鎸佸摢浜�SQL璇硶锛屼互鍙婂簲鎵ц鍝鏁版嵁楠岃瘉妫�鏌ャ�傝繖鏍峰彲浠ユ洿瀹规槗鍦板湪涓嶅悓鐨勭幆澧冧腑浣跨敤MySQL锛屽苟缁撳悎鍏跺畠鏁版嵁搴撴湇鍔″櫒浣跨敤MySQL銆�
浣犲彲浠ョ敤--sql-mode="modes"閫夐」鍚姩mysqld鏉�璁剧疆榛樿SQL妯″紡銆傚鏋滀綘鎯宠閲嶈锛岃鍊艰繕鍙互涓虹┖(--sql-mode ="")銆�
浣犺繕鍙互鍦ㄥ惎鍔ㄥ悗鐢�SET [SESSION|GLOBAL] sql_mode='modes'璇彞璁剧疆sql_mode鍙橀噺鏉ユ洿鏀�SQL妯″紡銆傝缃� GLOBAL鍙橀噺鏃堕渶瑕佹嫢鏈�SUPER鏉冮檺锛屽苟涓斾細褰卞搷浠庨偅鏃惰捣杩炴帴鐨勬墍鏈夊鎴风鐨勬搷浣溿�傝缃�SESSION鍙橀噺鍙奖鍝嶅綋鍓嶇殑瀹㈡埛绔�備换浣曞鎴风鍙互闅忔椂鏇存敼鑷繁鐨勪細璇� sql_mode鍊笺��
Modesis鏄敤閫楀彿(鈥�锛�鈥�)闂撮殧寮�鐨勪竴绯诲垪涓嶅悓鐨勬ā寮忋�備綘鍙互鐢�SELECT @@sql_mode璇彞鏌ヨ褰撳墠鐨勬ā寮忋�傞粯璁ゅ�兼槸绌�(娌℃湁璁剧疆浠讳綍妯″紡)銆�
涓昏閲嶈sql_mode鍊间负锛�
路 ANSI
鏇存敼璇硶鍜岃涓猴紝浣垮叾鏇寸鍚堟爣鍑�SQL銆�
路 STRICT_TRANS_TABLES
濡傛灉涓嶈兘灏嗙粰瀹氱殑鍊兼彃鍏ュ埌浜嬪姟琛ㄤ腑锛屽垯鏀惧純璇ヨ鍙ャ�傚浜庨潪浜嬪姟琛紝濡傛灉鍊煎嚭鐜板湪鍗曡璇彞鎴栧琛岃鍙ョ殑绗�1琛岋紝鍒欐斁寮冭璇彞銆傛湰鑺傚悗闈㈢粰鍑轰簡鏇磋缁嗙殑鎻忚堪銆�
路 TRADITIONAL
Make MySQL鐨勮涓鸿薄鈥�浼犵粺鈥�SQL鏁版嵁搴撶郴缁熴�傝妯″紡鐨勭畝鍗曟弿杩版槸褰撳湪鍒椾腑鎻掑叆涓嶆纭殑鍊兼椂鈥滅粰鍑�閿欒鑰屼笉鏄鍛�鈥濄��娉�閲婏細涓�鏃﹀彂鐜伴敊璇珛鍗虫斁寮�INSERT/UPDATE銆傚鏋滀綘浣跨敤闈炰簨鍔″瓨鍌ㄥ紩鎿庯紝杩欑鏂瑰紡涓嶆槸浣犳兂瑕佺殑锛屽洜涓哄嚭鐜伴敊璇墠杩涜鐨勬暟鎹洿鏀逛笉浼氣�滄粴鍔ㄢ�濓紝缁撴灉鏄洿鏂扳�滃彧杩涜浜嗕竴閮ㄥ垎鈥濄��
鏈墜鍐屾寚鈥�涓ユ牸妯″紡鈥濓紝琛ㄧず鑷冲皯STRICT _TRANS_TABLES鎴�STRICT _ALL_TABLES琚惎鐢ㄧ殑妯″紡銆�
涓嬮潰鎻忚堪浜嗘敮鎸佺殑鎵�鏈夋ā寮忥細
路 ALLOW_INVALID_DATES
鍦ㄤ弗鏍兼ā寮忎笅涓嶈妫�鏌ュ叏閮ㄦ棩鏈熴�傚彧妫�鏌�1鍒�12涔嬮棿鐨勬湀浠藉拰1鍒�31涔嬮棿鐨勬棩銆傝繖鍦�Web搴旂敤绋嬪簭涓紝褰撲綘浠庝笁涓笉鍚岀殑瀛楁鑾峰彇骞淬�佹湀銆佹棩锛屽苟涓旀兂瑕佺‘鍒囦繚瀛樼敤鎴锋彃鍏ョ殑鍐呭(涓嶈繘琛屾棩鏈熼獙璇�)鏃跺緢閲嶈銆傝妯″紡閫傜敤浜�DATE鍜�DATETIME鍒椼�備笉閫傚悎TIMESTAMP鍒楋紝TIMESTAMP鍒楅渶瑕侀獙璇佹棩鏈熴��
鍚敤涓ユ牸妯″紡鍚庯紝鏈嶅姟鍣ㄩ渶瑕佸悎娉曠殑鏈堝拰鏃ワ紝涓嶄粎浠呮槸鍒嗗埆鍦�1鍒�12鍜�1鍒�31鑼冨洿鍐呫�備緥濡傦紝绂佺敤涓ユ牸妯″紡鏃�'2004-04-31'鏄悎娉曠殑锛屼絾鍚敤涓ユ牸妯″紡鍚庢槸闈炴硶鐨勩�傝鎯冲湪涓ユ牸妯″紡鍏佽閬帺鍥哄畾鏃ユ湡锛岃繕搴斿惎鐢�ALLOW_INVALID_DATES銆�
路 ANSI_QUOTES
灏嗏��"鈥欒涓鸿瘑鍒寮曞彿(鈥�`鈥欏紩鍙峰瓧绗�)锛屼笉瑕佽涓哄瓧绗︿覆鐨勫紩鍙峰瓧绗︺�傚湪ANSI妯″紡锛屼綘鍙互浠嶇劧浣跨敤鈥�`鈥欐潵寮曠敤璇嗗埆绗︺�傚惎鐢�ANSI_QUOTES鍚庯紝浣犱笉鑳界敤鍙屽紩鍙锋潵寮曠敤瀛楃涓诧紝鍥犱负瀹冭瑙ｉ噴涓鸿瘑鍒銆�
路 ERROR_FOR_DIVISION_BY_ZERO
鍦ㄤ弗鏍兼ā寮忥紝鍦�INSERT鎴�UPDATE杩囩▼涓紝濡傛灉琚浂闄�(鎴�MOD(X锛�0))锛屽垯浜х敓閿欒(鍚﹀垯涓鸿鍛�)銆傚鏋滄湭缁欏嚭璇ユā寮忥紝琚浂闄ゆ椂MySQL杩斿洖NULL銆傚鏋滅敤鍒�INSERT IGNORE鎴�UPDATE IGNORE涓紝MySQL鐢熸垚琚浂闄よ鍛婏紝浣嗘搷浣滅粨鏋滀负NULL銆�
路 HIGH_NOT_PRECEDENCE
NOT鎿嶄綔绗︾殑浼樺厛椤哄簭鏄〃杈惧紡渚嬪NOT a BETWEEN b AND c琚В閲婁负NOT (a BETWEEN b AND c)銆傚湪涓�浜涙棫鐗堟湰MySQL涓紝 琛ㄨ揪寮忚瑙ｉ噴涓�(NOT a) BETWEEN b AND c銆傚惎鐢�HIGH_NOT_PRECEDENCESQL妯″紡锛屽彲浠ヨ幏寰椾互鍓嶇殑鏇撮珮浼樺厛绾х殑缁撴灉銆�
mysql> SET sql_mode = '';
mysql> SELECT NOT 1 BETWEEN -5 AND 5;
-> 0
mysql> SET sql_mode = 'broken_not';
mysql> SELECT NOT 1 BETWEEN -5 AND 5;
-> 1
路 IGNORE_SPACE
鍏佽鍑芥暟鍚嶅拰鈥�(鈥欎箣闂存湁绌烘牸銆傚己鍒跺皢鎵�鏈夊嚱鏁板悕瑙嗕负淇濆瓨鐨勫瓧銆傜粨鏋滄槸锛屽鏋滀綘鎯宠璁块棶淇濆瓨涓哄瓧鐨勬暟鎹簱銆佽〃鎴栧垪鍚嶏紝浣犲繀椤诲紩鐢ㄥ畠銆備緥濡傦紝鍥犱负鏈�USER()鍑芥暟锛�mysql鏁版嵁搴撲腑鐨�user琛ㄥ悕鍜岃琛ㄥ唴鐨�User鍒楄淇濆瓨涓嬫潵锛屽洜姝や綘蹇呴』寮曠敤瀹冧滑锛�
SELECT "User" FROM mysql."user";
路 NO_AUTO_CREATE_USER
闃叉GRANT鑷姩鍒涘缓鏂扮敤鎴凤紝闄ら潪杩樻寚瀹氫簡瀵嗙爜銆�
路 NO_AUTO_VALUE_ON_ZERO
NO_AUTO_VALUE_ON_ZERO褰卞搷AUTO_INCREMENT鍒楃殑澶勭悊銆備竴鑸儏鍐碉紝浣犲彲浠ュ悜璇ュ垪鎻掑叆NULL鎴�0鐢熸垚涓嬩竴涓簭鍒楀彿銆�NO_AUTO_VALUE_ON_ZERO绂佺敤0锛屽洜姝ゅ彧鏈�NULL鍙互鐢熸垚涓嬩竴涓簭鍒楀彿銆�
濡傛灉灏�0淇濆瓨鍒拌〃鐨�AUTO_INCREMENT鍒楋紝璇ユā寮忎細寰堟湁鐢ㄣ��(涓嶆帹鑽愰噰鐢ㄨ鎯緥)銆備緥濡傦紝濡傛灉浣犵敤mysqldump杞偍琛ㄥ苟閲嶈浇锛�MySQL閬囧埌0鍊间竴鑸細鐢熸垚鏂扮殑搴忓垪鍙凤紝鐢熸垚鐨勮〃鐨勫唴瀹逛笌杞偍鐨勮〃涓嶅悓銆傞噸杞借浆鍌ㄦ枃浠跺墠鍚敤NO_AUTO_VALUE_ON_ZERO鍙互瑙ｅ喅璇ラ棶棰樸��mysqldump鍦ㄨ緭鍑轰腑鑷姩鍖呮嫭鍚敤NO_AUTO_VALUE_ON_ZERO鐨勮鍙ャ��
路 NO_BACKSLASH_ESCAPES
绂佺敤鍙嶆枩绾垮瓧绗�(鈥�\鈥�)鍋氫负瀛楃涓插唴鐨勯��鍑哄瓧绗︺�傚惎鐢ㄨ妯″紡锛屽弽鏂滅嚎鍒欐垚涓烘櫘閫氬瓧绗︺��
路 NO_DIR_IN_CREATE
鍒涘缓琛ㄦ椂锛屽拷瑙嗘墍鏈�INDEX DIRECTORY鍜�DATA DIRECTORY鎸囦护銆傝閫夐」瀵逛粠澶嶅埗鏈嶅姟鍣ㄦ湁鐢ㄣ��
路 NO_ENGINE_SUBSTITUTION
濡傛灉闇�瑕佺殑瀛樺偍寮曟搸琚鐢ㄦ垨鏈紪璇戯紝鍙互闃叉鑷姩鏇挎崲瀛樺偍寮曟搸銆�
路 NO_FIELD_OPTIONS
涓嶈鍦�SHOW CREATE TABLE鐨勮緭鍑轰腑鎵撳嵃MySQL涓撶敤鍒楅�夐」銆傝妯″紡鍦ㄥ彲绉绘妯″紡锛�portability mode锛変笅鐢ㄤ簬mysqldump銆�
路 NO_KEY_OPTIONS
涓嶈鍦�SHOW CREATE TABLE鐨勮緭鍑轰腑鎵撳嵃MySQL涓撶敤绱㈠紩閫夐」銆傝妯″紡鍦ㄥ彲绉绘妯″紡锛�portability mode锛変笅鐢ㄤ簬mysqldump銆�
路 NO_TABLE_OPTIONS
涓嶈鍦�SHOW CREATE TABLE鐨勮緭鍑轰腑鎵撳嵃MySQL涓撶敤琛ㄩ�夐」锛堜緥濡�ENGINE锛夈�傝妯″紡鍦ㄥ彲绉绘妯″紡锛�portability mode锛変笅鐢ㄤ簬mysqldump銆�
路 NO_UNSIGNED_SUBTRACTION
鍦ㄥ噺杩愮畻涓紝濡傛灉鏌愪釜鎿嶄綔鏁版病鏈夌鍙凤紝涓嶈灏嗙粨鏋滄爣璁颁负UNSIGNED銆傝娉ㄦ剰杩欐牱浣�UNSIGNED BIGINT涓嶈兘100%鐢ㄤ簬涓婁笅鏂囦腑銆傚弬瑙�12.8鑺傦紝鈥淐ast鍑芥暟鍜屾搷浣滅鈥�銆�
路 NO_ZERO_DATE
鍦ㄤ弗鏍兼ā寮忥紝涓嶈灏� '0000-00-00'鍋氫负鍚堟硶鏃ユ湡銆備綘浠嶇劧鍙互鐢�IGNORE閫夐」鎻掑叆闆舵棩鏈熴�傚湪闈炰弗鏍兼ā寮忥紝鍙互鎺ュ彈璇ユ棩鏈燂紝浣嗕細鐢熸垚璀﹀憡銆�
路 NO_ZERO_IN_DATE
鍦ㄤ弗鏍兼ā寮忥紝涓嶆帴鍙楁湀鎴栨棩閮ㄥ垎涓�0鐨勬棩鏈熴�傚鏋滀娇鐢�IGNORE閫夐」锛屾垜浠负绫讳技鐨勬棩鏈熸彃鍏�'0000-00-00'銆傚湪闈炰弗鏍兼ā寮忥紝鍙互鎺ュ彈璇ユ棩鏈燂紝浣嗕細鐢熸垚璀﹀憡銆�
路 ONLY_FULL_GROUP_BY
涓嶈璁�GROUP BY閮ㄥ垎涓殑鏌ヨ鎸囧悜鏈�夋嫨鐨勫垪銆�
路 PIPES_AS_CONCAT
灏�||瑙嗕负瀛楃涓茶繛鎺ユ搷浣滅锛堬紜锛�(鍚�CONCAT())锛岃�屼笉瑙嗕负OR銆�
路 REAL_AS_FLOAT
灏�REAL瑙嗕负FLOAT鐨勫悓涔夎瘝锛岃�屼笉鏄�DOUBLE鐨勫悓涔夎瘝銆�
路 STRICT_TRANS_TABLES
涓烘墍鏈夊瓨鍌ㄥ紩鎿庡惎鐢ㄤ弗鏍兼ā寮忋�傞潪娉曟暟鎹�艰鎷掔粷銆傚悗闈㈡湁璇︾粏璇存槑銆�
路 STRICT_TRANS_TABLES
涓轰簨鍔″瓨鍌ㄥ紩鎿庡惎鐢ㄤ弗鏍兼ā寮忥紝涔熷彲鑳戒负闈炰簨鍔″瓨鍌ㄥ紩鎿庡惎鐢ㄤ弗鏍兼ā寮忋�傚悗闈㈡湁璇︾粏璇存槑銆�
涓ユ牸妯″紡鎺у埗MySQL濡備綍澶勭悊闈炴硶鎴栦涪澶辩殑杈撳叆鍊笺�傛湁鍑犵鍘熷洜鍙互浣夸竴涓�间负闈炴硶銆備緥濡傦紝鏁版嵁绫诲瀷閿欒锛屼笉閫傚悎鍒楋紝鎴栬秴鍑鸿寖鍥淬�傚綋鏂版彃鍏ョ殑琛屼笉鍖呭惈鏌愬垪鐨勬病鏈夋樉绀哄畾涔�DEFAULT瀛愬彞鐨勫�硷紝鍒欒鍊艰涓㈠け銆�
瀵逛簬浜嬪姟琛紝褰撳惎鐢�STRICT_ALL_TABLES鎴�STRICT_TRANS_TABLES妯″紡鏃讹紝濡傛灉璇彞涓湁闈炴硶鎴栦涪澶卞�硷紝鍒欎細鍑虹幇閿欒銆傝鍙ヨ鏀惧純骞舵粴鍔ㄣ��
瀵逛簬闈炰簨鍔¤〃锛屽鏋滄彃鍏ユ垨鏇存柊鐨勭1琛屽嚭鐜板潖鍊硷紝涓ょ妯″紡鐨勮涓虹浉鍚屻�傝鍙ヨ鏀惧純锛岃〃淇濇寔涓嶅彉銆傚鏋滆鍙ユ彃鍏ユ垨淇敼澶氳锛屽苟涓斿潖鍊煎嚭鐜板湪绗�2鎴栧悗闈㈢殑琛岋紝缁撴灉鍙栧喅浜庡惎鐢ㄤ簡鍝釜涓ユ牸閫夐」锛�
路 瀵逛簬STRICT_ALL_TABLES锛�MySQL杩斿洖閿欒骞跺拷瑙嗗墿浣欑殑琛屻�備絾鏄紝鍦ㄨ繖绉嶆儏鍐典笅锛屽墠闈㈢殑琛屽凡缁忚鎻掑叆鎴栨洿鏂般�傝繖璇存槑浣犲彲浠ラ儴鍒嗘洿鏂帮紝杩欏彲鑳戒笉鏄綘鎯宠鐨勩�傝閬垮厤杩欑偣锛屾渶濂戒娇鐢ㄥ崟琛岃鍙ワ紝鍥犱负杩欐牱鍙互涓嶆洿鏀硅〃鍗冲彲浠ユ斁寮冦��
路 瀵逛簬STRICT_TRANS_TABLES锛�MySQL灏嗛潪娉曞�艰浆鎹负鏈�鎺ヨ繎璇ュ垪鐨勫悎娉曞�煎苟鎻掑叆璋冩暣鍚庣殑鍊笺�傚鏋滃�间涪澶憋紝MySQL鍦ㄥ垪涓彃鍏ラ殣寮� 榛樿鍊笺�傚湪浠讳綍鎯呭喌涓嬶紝MySQL閮戒細鐢熸垚璀﹀憡鑰屼笉鏄粰鍑洪敊璇苟缁х画鎵ц璇彞銆�13.1.5鑺傦紝鈥淐REATE TABLE璇硶鈥�鎻忚堪浜嗛殣寮忛粯璁ゅ�笺��
涓ユ牸妯″紡涓嶅厑璁搁潪娉曟棩鏈燂紝渚嬪'2004-04-31'銆傚畠涓嶅厑璁哥姝㈡棩鏈熶娇鐢ㄢ�滈浂鈥濋儴鍒嗭紝渚嬪'2004-04-00'鎴栤��闆�鈥濇棩鏈熴�傝鎯崇姝紝搴斿湪涓ユ牸妯″紡鍩虹涓婏紝鍚敤NO_ZERO_IN_DATE鍜�NO_ZERO_DATE SQL妯″紡銆�
濡傛灉浣犱笉浣跨敤涓ユ牸妯″紡(鍗充笉鍚敤STRICT_TRANS_TABLES鎴�STRICT_ALL_TABLES妯″紡)锛屽浜庨潪娉曟垨涓㈠け鐨勫�硷紝MySQL灏嗘彃鍏ヨ皟鏁村悗鐨勫�煎苟缁欏嚭璀﹀憡銆傚湪涓ユ牸妯″紡锛屼綘鍙互閫氳繃INSERT IGNORE鎴�UPDATE IGNORE鏉ュ疄鐜般�傚弬瑙�13.5.4.22鑺傦紝鈥淪HOW WARNINGS璇硶鈥�銆�
涓嬮潰鐨勭壒娈婃ā寮忓揩閫熺粍鍚堜簡鍓嶉潰鎵�鍒楃殑妯″紡銆�
鍏朵腑鍖呮嫭澶у鏁版渶鏂扮増鏈�MySQL涓殑鎵�鏈夋ā寮忓�笺�傛棫鐗堟湰涓紝缁勫悎妯″紡涓嶅寘鎷柊鐗堟湰涓病鏈夌殑涓嶉�傜敤鐨勫叿浣撴ā寮忓�笺��
路 ANSI
绛夊悓REAL_AS_FLOAT銆�PIPES_AS_CONCAT銆�ANSI_QUOTES銆�IGNORE_SPACE銆傚弬瑙�1.8.3鑺傦紝鈥滃湪ANSI妯″紡涓嬭繍琛孧ySQL鈥�銆�
路 DB2
绛夊悓PIPES_AS_CONCAT銆�ANSI_QUOTES銆�IGNORE_SPACE銆�NO_KEY_OPTIONS銆�NO_TABLE_OPTIONS銆�NO_FIELD_OPTIONS銆�
路 MAXDB
绛夊悓PIPES_AS_CONCAT銆�ANSI_QUOTES銆�IGNORE_SPACE銆�NO_KEY_OPTIONS銆�NO_TABLE_OPTIONS銆�NO_FIELD_OPTIONS銆� NO_AUTO_CREATE_USER銆�
路 MSSQL
绛夊悓PIPES_AS_CONCAT銆�ANSI_QUOTES銆�IGNORE_SPACE銆�NO_KEY_OPTIONS銆�NO_TABLE_OPTIONS銆� NO_FIELD_OPTIONS銆�
路 MYSQL323
绛夊悓NO_FIELD_OPTIONS銆�HIGH_NOT_PRECEDENCE銆�
路 MYSQL40
绛夊悓NO_FIELD_OPTIONS銆�HIGH_NOT_PRECEDENCE銆�
路 ORACLE
绛夊悓PIPES_AS_CONCAT銆�ANSI_QUOTES銆�IGNORE_SPACE銆�NO_KEY_OPTIONS銆�NO_TABLE_OPTIONS銆�NO_FIELD_OPTIONS銆�NO_AUTO_CREATE_USER銆�
路 POSTGRESQL
绛夊悓PIPES_AS_CONCAT銆�ANSI_QUOTES銆�IGNORE_SPACE銆�NO_KEY_OPTIONS銆�NO_TABLE_OPTIONS銆�NO_FIELD_OPTIONS銆�
路 TRADITIONAL
绛夊悓STRICT_TRANS_TABLES銆丼TRICT_ALL_TABLES銆丯O_ZERO_IN_DATE銆丯O_ZERO_DATE銆丒RROR_FOR_DIVISION_BY_ZERO銆丯O_AUTO_CREATE_USER銆�
鏈嶅姟鍣ㄥ皢缁存姢璁稿琛ㄧず鍏堕厤缃殑绯荤粺鍙橀噺銆傛墍鏈夊彉閲忓潎鏈夐粯璁ゅ�笺�傚彲浠ュ湪鍛戒护琛屼腑鎴栭�夐」鏂囦欢璁剧疆閫夐」鍦ㄦ湇鍔″櫒鍚姩鏃跺瀹冧滑杩涜璁剧疆銆傚ぇ澶氭暟鍙互鍦ㄨ繍琛屾椂浣跨敤SET璇彞鏉ヨ缃��
mysqld鏈嶅姟鍣�缁存姢涓ょ鍙橀噺銆傚叏灞�鍙橀噺褰卞搷鏈嶅姟鍣ㄧ殑鍏ㄥ眬鎿嶄綔銆備細璇濆彉閲忓奖鍝嶅叿浣撳鎴风杩炴帴鐩稿叧鎿嶄綔銆�
鏈嶅姟鍣ㄥ惎鍔ㄦ椂锛屽皢鎵�鏈夊叏灞�鍙橀噺鍒濆鍖栦负榛樿鍊笺�傚彲浠ュ湪閫夐」鏂囦欢鎴栧懡浠よ涓寚瀹氱殑閫夐」鏉ユ洿鏀硅繖浜涢粯璁ゅ�笺�傛湇鍔″櫒鍚姩鍚庯紝閫氳繃杩炴帴鏈嶅姟鍣ㄥ苟鎵цSET GLOBAL var_name璇彞鍙互鏇存敼鍔ㄦ�佸叏灞�鍙橀噺銆傝鎯虫洿鏀瑰叏灞�鍙橀噺锛屽繀椤诲叿鏈�SUPER鏉冮檺銆�
鏈嶅姟鍣ㄨ繕涓烘瘡涓鎴风杩炴帴缁存姢浼氳瘽鍙橀噺銆傝繛鎺ユ椂浣跨敤鐩稿簲鍏ㄥ眬鍙橀噺鐨勫綋鍓嶅�煎瀹㈡埛绔細璇濆彉閲忚繘琛屽垵濮嬪寲銆傚鎴峰彲浠ラ�氳繃SET SESSION var_name璇彞鏉ユ洿鏀瑰姩鎬佷細璇濆彉閲忋�傝缃細璇濆彉閲忎笉闇�瑕佺壒娈婃潈闄愶紝浣嗗鎴峰彲浠ュ彧鏇存敼鑷繁鐨勪細璇濆彉閲忥紝鑰屼笉鏇存敼鍏跺畠瀹㈡埛鐨勪細璇濆彉閲忋��
浠讳綍璁块棶鍏ㄥ眬鍙橀噺鐨勫鎴风閮藉彲浠ョ湅瑙佸鍏ㄥ眬鍙橀噺鐨勬洿鏀广�備絾鏄紝瀹冨彧褰卞搷鍦ㄦ洿鏀瑰悗杩炴帴鐨勪粠璇ュ叏灞�鍙橀噺鍒濆鍖栫浉搴斾細璇濆彉閲忕殑瀹㈡埛绔�傚畠涓嶄細褰卞搷宸茬粡杩炴帴涓婄殑瀹㈡埛绔殑浼氳瘽鍙橀噺(鐢氳嚦鏄墽琛�SET GLOBAL璇彞鐨勫鎴风)銆�
褰撲娇鐢ㄥ惎鍔ㄩ�夐」璁剧疆鍙橀噺鏃讹紝鍙橀噺鍊煎彲浠ヤ娇鐢ㄥ悗缂�K銆�M鎴�G鍒嗗埆琛ㄧず鍗冨瓧鑺傘�佸厗瀛楄妭鎴�gigabytes銆備緥濡傦紝涓嬮潰鐨勫懡浠ゅ惎鍔ㄦ湇鍔″櫒鏃剁殑閿�肩紦鍐插尯澶у皬涓�16 megabytes锛�
mysqld --key_buffer_size=16M
鍚庣紑鐨勫ぇ灏忓啓缇庡叧绯伙紱16M鍜�16m鏄悓鏍风殑銆�
杩愯鏃讹紝浣跨敤SET璇彞鏉ヨ缃郴缁熷彉閲忋�傛鏃讹紝涓嶈兘浣跨敤鍚庣紑锛屼絾鍊煎彲浠ラ噰鍙栦笅鍒楄〃杈惧紡锛�
mysql> SET sort_buffer_size = 10 * 1024 * 1024;
瑕佹兂鏄惧紡鎸囧畾鏄惁璁剧疆鍏ㄥ眬鎴栦細璇濆彉閲忥紝浣跨敤GLOBAL鎴�SESSION閫夐」锛�
mysql> SET GLOBAL sort_buffer_size = 10 * 1024 * 1024;
mysql> SET SESSION sort_buffer_size = 10 * 1024 * 1024;
涓や釜閫夐」鍧囨病鏈夛紝鍒欒鍙ヨ缃細璇濆彉閲忋��
5.3.3.1鑺傦紝鈥滃姩鎬佺郴缁熷彉閲忊��涓垪鍑轰簡鍙互鍦ㄨ繍琛屾椂璁剧疆鐨勫彉閲忋��
濡傛灉浣犳兂鐢�SET璇彞闄愬埗绯荤粺鍙橀噺鍙鐨勬渶澶у�硷紝鍙互鍦ㄦ湇鍔″櫒鍚姩鏃堕�氳繃--maximum-var_name褰㈠紡鐨勯�夐」鏉ユ寚瀹氥�備緥濡傦紝瑕佹兂闃叉query_cache_size鐨勫�艰繍琛屾椂瓒呰繃32MB锛屼娇鐢ㄩ�夐」--maximum-query_cache_size=32M銆�
浣犲彲浠ラ�氳繃SHOW VARIABLES璇彞鏌ョ湅绯荤粺鍙橀噺鍙婂叾鍊笺�傝缁嗕俊鎭弬瑙�9.4鑺傦紝鈥滅郴缁熷彉閲忊��銆�
mysql> SHOW VARIABLES; +---------------------------------+-------------------------------------------+ | Variable_name | Value | +---------------------------------+-------------------------------------------+ | auto_increment_increment | 1 | | auto_increment_offset | 1 | | automatic_sp_privileges | ON | | back_log | 50 | | basedir | /home/jon/bin/mysql/ | | binlog_cache_size | 32768 | | bulk_insert_buffer_size | 8388608 | | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | latin1 | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /home/jon/bin/mysql/share/mysql/charsets/ | | collation_connection | latin1_swedish_ci | | collation_database | latin1_swedish_ci | | collation_server | latin1_swedish_ci | | completion_type | 0 | | concurrent_insert | 1 | | connect_timeout | 5 | | datadir | /home/jon/bin/mysql/var/ | | date_format | %Y-%m-%d | | datetime_format | %Y-%m-%d %H:%i:%s | | default_week_format | 0 | | delay_key_write | ON | | delayed_insert_limit | 100 | | delayed_insert_timeout | 300 | | delayed_queue_size | 1000 | | div_precision_increment | 4 | | engine_condition_pushdown | OFF | | expire_logs_days | 0 | | flush | OFF | | flush_time | 0 | | ft_boolean_syntax | + -><()~*:""&| | | ft_max_word_len | 84 | | ft_min_word_len | 4 | | ft_query_expansion_limit | 20 | | ft_stopword_file | (built-in) | | group_concat_max_len | 1024 | | have_archive | YES | | have_bdb | NO | | have_blackhole_engine | YES | | have_compress | YES | | have_crypt | YES | | have_csv | YES | | have_example_engine | NO | | have_federated_engine | NO | | have_geometry | YES | | have_innodb | YES | | have_isam | NO | | have_ndbcluster | DISABLED | | have_openssl | NO | | have_partition_engine | YES | | have_query_cache | YES | | have_raid | NO | | have_rtree_keys | YES | | have_symlink | YES | | init_connect | | | init_file | | | init_slave | | | innodb_additional_mem_pool_size | 1048576 | | innodb_autoextend_increment | 8 | | innodb_buffer_pool_awe_mem_mb | 0 | | innodb_buffer_pool_size | 8388608 | | innodb_checksums | ON | | innodb_commit_concurrency | 0 | | innodb_concurrency_tickets | 500 | | innodb_data_file_path | ibdata1:10M:autoextend | | innodb_data_home_dir | | | innodb_doublewrite | ON | | innodb_fast_shutdown | 1 | | innodb_file_io_threads | 4 | | innodb_file_per_table | OFF | | innodb_flush_log_at_trx_commit | 1 | | innodb_flush_method | | | innodb_force_recovery | 0 | | innodb_lock_wait_timeout | 50 | | innodb_locks_unsafe_for_binlog | OFF | | innodb_log_arch_dir | | | innodb_log_archive | OFF | | innodb_log_buffer_size | 1048576 | | innodb_log_file_size | 5242880 | | innodb_log_files_in_group | 2 | | innodb_log_group_home_dir | ./ | | innodb_max_dirty_pages_pct | 90 | | innodb_max_purge_lag | 0 | | innodb_mirrored_log_groups | 1 | | innodb_open_files | 300 | | innodb_support_xa | ON | | innodb_sync_spin_loops | 20 | | innodb_table_locks | ON | | innodb_thread_concurrency | 20 | | innodb_thread_sleep_delay | 10000 | | interactive_timeout | 28800 | | join_buffer_size | 131072 | | key_buffer_size | 8388600 | | key_cache_age_threshold | 300 | | key_cache_block_size | 1024 | | key_cache_division_limit | 100 | | language | /home/jon/bin/mysql/share/mysql/english/ | | large_files_support | ON | | large_page_size | 0 | | large_pages | OFF | | license | GPL | | local_infile | ON | | locked_in_memory | OFF | | log | ON | | log_bin | ON | | log_bin_trust_routine_creators | OFF | | log_error | /home/jon/bin/mysql/var/master1.err | | log_slave_updates | OFF | | log_slow_queries | OFF | | log_warnings | 1 | | long_query_time | 10 | | low_priority_updates | OFF | | lower_case_file_system | OFF | | lower_case_table_names | 0 | | max_allowed_packet | 1048576 | | max_binlog_cache_size | 4294967295 | | max_binlog_size | 1073741824 | | max_connect_errors | 10 | | max_connections | 100 | | max_delayed_threads | 20 | | max_error_count | 64 | | max_heap_table_size | 16777216 | | max_insert_delayed_threads | 20 | | max_join_size | 4294967295 | | max_length_for_sort_data | 1024 | | max_relay_log_size | 0 | | max_seeks_for_key | 4294967295 | | max_sort_length | 1024 | | max_tmp_tables | 32 | | max_user_connections | 0 | | max_write_lock_count | 4294967295 | | multi_range_count | 256 | | myisam_data_pointer_size | 6 | | myisam_max_sort_file_size | 2147483647 | | myisam_recover_options | OFF | | myisam_repair_threads | 1 | | myisam_sort_buffer_size | 8388608 | | ndb_autoincrement_prefetch_sz | 32 | | ndb_cache_check_time | 0 | | ndb_force_send | ON | | ndb_index_stat_cache_entries | 32 | | ndb_index_stat_enable | ON | | ndb_index_stat_update_freq | 20 | | ndb_use_exact_count | ON | | ndb_use_transactions | ON | | net_buffer_length | 16384 | | net_read_timeout | 30 | | net_retry_count | 10 | | net_write_timeout | 60 | | new | OFF | | old_alter_table | OFF | | old_passwords | OFF | | open_files_limit | 1024 | | optimizer_prune_level | 1 | | optimizer_search_depth | 62 | | pid_file | /home/jon/bin/mysql/var/hostname.pid1 | | port | 3306 | | preload_buffer_size | 32768 | | protocol_version | 10 | | query_alloc_block_size | 8192 | | query_cache_limit | 1048576 | | query_cache_min_res_unit | 4096 | | query_cache_size | 0 | | query_cache_type | ON | | query_cache_wlock_invalidate | OFF | | query_prealloc_size | 8192 | | range_alloc_block_size | 2048 | | read_buffer_size | 131072 | | read_only | OFF | | read_rnd_buffer_size | 262144 | | relay_log_purge | ON | | relay_log_space_limit | 0 | | rpl_recovery_rank | 0 | | secure_auth | OFF | | server_id | 1 | | skip_external_locking | ON | | skip_networking | OFF | | skip_show_database | OFF | | slave_compressed_protocol | OFF | | slave_load_tmpdir | /tmp/ | | slave_net_timeout | 3600 | | slave_skip_errors | OFF | | slave_transaction_retries | 10 | | slow_launch_time | 2 | | socket | /tmp/mysql.sock | | sort_buffer_size | 2097144 | | sql_mode | | | sql_notes | ON | | sql_warnings | ON | | storage_engine | MyISAM | | sync_binlog | 0 | | sync_frm | ON | | sync_replication | 0 | | sync_replication_slave_id | 0 | | sync_replication_timeout | 10 | | system_time_zone | EST | | table_cache | 64 | | table_lock_wait_timeout | 50 | | table_type | MyISAM | | thread_cache_size | 0 | | thread_stack | 196608 | | time_format | %H:%i:%s | | time_zone | SYSTEM | | timed_mutexes | OFF | | tmp_table_size | 33554432 | | tmpdir | | | transaction_alloc_block_size | 8192 | | transaction_prealloc_size | 4096 | | tx_isolation | REPEATABLE-READ | | updatable_views_with_limit | YES | | version | 5.1.2-alpha-log | | version_comment | Source distribution | | version_compile_machine | i686 | | version_compile_os | suse-linux | | wait_timeout | 28800 | +---------------------------------+-------------------------------------------+ 218 rows in set (0.03 sec)
姝ゅ鎻忚堪浜嗗ぇ澶氭暟绯荤粺鍙橀噺銆傛病鏈夌増鏈殑鍙橀噺鍦ㄦ墍鏈�MySQL 5.1 鍙戝竷涓�傜敤銆傚叧浜庡叾浣跨敤鍘嗗彶淇℃伅锛岃鍙傝MySQL 5.0鍙傝�冩寚鍗�鍜�MySQL 4.1鍙傝�冩寚鍗�銆�InnoDB绯荤粺鍙橀噺鍒椾簬 15.2.4鑺傦紝鈥淚nnoDB鍚姩閫夐」鈥�銆�
鑻ユ病鏈夊彟琛岃瀹氾紝缂撳啿鍖哄ぇ灏忋�侀暱搴﹀拰鍫嗘爤澶у皬鐨勫崟浣嶅潎涓哄瓧鑺傘��
鍏充簬杩欎簺鍙橀噺鐨勮皟鑺備俊鎭弬瑙�7.5.2鑺傦紝鈥滆皟鑺傛湇鍔″櫒鍙傛暟鈥�銆�
路 auto_increment_increment
auto_increment_increment鍜�auto_increment_offset鐢ㄤ簬涓绘湇鍔″櫒锛嶄富鏈嶅姟鍣紙master-to-master锛夊鍒讹紝骞跺彲浠ョ敤鏉ユ帶鍒�AUTO_INCREMENT鍒楃殑鎿嶄綔銆備袱涓彉閲忓潎鍙互璁剧疆涓哄叏灞�鎴栧眬閮ㄥ彉閲忥紝骞朵笖鍋囧畾姣忎釜鍊奸兘鍙互涓�1鍒�65,535涔嬮棿鐨勬暣鏁板�笺�傚皢鍏朵腑涓�涓彉閲忚缃负0浼氫娇璇ュ彉閲忎负1銆傚鏋滆瘯鍥惧皢杩欎簺鍙橀噺璁剧疆涓哄ぇ浜�65,535鎴栧皬浜�0鐨勫�硷紝鍒欎細灏嗚鍊艰缃负65,535銆傚鏋滃悜灏�auto_increment_increment鎴�auto_increment_offset璁剧疆涓洪潪鏁存暟鍊硷紝鍒欎細缁欏嚭閿欒锛屽苟涓斿彉閲忕殑瀹為檯鍊煎湪杩欑鎯呭喌涓嬩繚鎸佷笉鍙樸��
杩欎袱涓彉閲忓奖鍝�AUTO_INCREMENT鍒楃殑鏂瑰紡锛�
o auto_increment_increment鎺у埗鍒椾腑鐨勫�肩殑澧為噺鍊笺�備緥濡�:
o mysql> SHOW VARIABLES LIKE 'auto_inc%';
o +--------------------------+-------+
o | Variable_name | Value |
o +--------------------------+-------+
o | auto_increment_increment | 1 |
o | auto_increment_offset | 1 |
o +--------------------------+-------+
o 2 rows in set (0.00 sec)
o
o mysql> CREATE TABLE autoinc1 (col INT NOT NULL AUTO_INCREMENT PRIMARY KEY);
o Query OK, 0 rows affected (0.04 sec)
o
o mysql> SET @auto_increment_increment=10;
o Query OK, 0 rows affected (0.00 sec)
o
o mysql> SHOW VARIABLES LIKE 'auto_inc%';
o +--------------------------+-------+
o | Variable_name | Value |
o +--------------------------+-------+
o | auto_increment_increment | 10 |
o | auto_increment_offset | 1 |
o +--------------------------+-------+
o 2 rows in set (0.01 sec)
o
o mysql> INSERT INTO autoinc1 VALUES (NULL), (NULL), (NULL), (NULL);
o Query OK, 4 rows affected (0.00 sec)
o Records: 4 Duplicates: 0 Warnings: 0
o
o mysql> SELECT col FROM autoinc1;
o +-----+
o | col |
o +-----+
o | 1 |
o | 11 |
o | 21 |
o | 31 |
o +-----+
o 4 rows in set (0.00 sec)
(娉ㄦ槑濡備綍浣跨敤SHOW VARIABLES鏉ヨ幏鍙栬繖浜涘彉閲忕殑褰撳墠鍊硷級銆�
o auto_increment_offset纭畾AUTO_INCREMENT鍒楀�肩殑璧风偣銆傚亣瀹氬湪涓庡墠闈㈢殑渚嬪瓙鐨勭浉鍚岀殑浼氳瘽涓墽琛屼笅闈㈢殑鍛戒护锛�
o mysql> SET @auto_increment_offset=5;
o Query OK, 0 rows affected (0.00 sec)
o
o mysql> SHOW VARIABLES LIKE 'auto_inc%';
o +--------------------------+-------+
o | Variable_name | Value |
o +--------------------------+-------+
o | auto_increment_increment | 10 |
o | auto_increment_offset | 5 |
o +--------------------------+-------+
o 2 rows in set (0.00 sec)
o
o mysql> CREATE TABLE autoinc2 (col INT NOT NULL AUTO_INCREMENT PRIMARY KEY);
o Query OK, 0 rows affected (0.06 sec)
o
o mysql> INSERT INTO autoinc2 VALUES (NULL), (NULL), (NULL), (NULL);
o Query OK, 4 rows affected (0.00 sec)
o Records: 4 Duplicates: 0 Warnings: 0
o
o mysql> SELECT col FROM autoinc2;
o +-----+
o | col |
o +-----+
o | 5 |
o | 15 |
o | 25 |
o | 35 |
o +-----+
o 4 rows in set (0.02 sec)
o
濡傛灉auto_increment_offset鐨勫�煎ぇ浜�auto_increment_increment鐨勫�硷紝鍒�auto_increment_offset鐨勫�艰蹇界暐銆�
濡傛灉鍏朵腑涓�涓垨涓や釜鍙橀噺琚洿鏀逛簡锛岀劧鍚庢洿鏀规彃鍏ュ埌鍖呭惈AUTO_INCREMENT鍒楃殑琛ㄤ腑鐨勬柊琛岋紝缁撴灉鍙兘鐪嬩笂鍘绘湁闂锛岀敱浜庤绠�AUTO_INCREMENT绯诲垪鍊兼椂娌℃湁鑰冭檻鍒楀唴宸茬粡瀛樺湪鐨勫�硷紝骞朵笖鎻掑叆鐨勪笅涓�涓�兼槸鍒楀唴鏈�灏忕殑鍊硷紝澶т簬AUTO_INCREMENT鍒楀唴宸叉湁鐨勬渶澶у�笺�傛崲鍙ヨ瘽璇达紝鏁板�肩殑璁＄畻鏂规硶涓猴細
auto_increment_offset+ N * auto_increment_increment
鍏朵腑N涓虹郴鍒楀唴鐨勬鏁存暟鍊�[1,2,3,...]銆備緥濡傦細
mysql> SHOW VARIABLES LIKE 'auto_inc%';
+--------------------------+-------+
| Variable_name | Value |
+--------------------------+-------+
| auto_increment_increment | 10 |
| auto_increment_offset | 5 |
+--------------------------+-------+
2 rows in set (0.00 sec)
mysql> SELECT col FROM autoinc1;
+-----+
| col |
+-----+
| 1 |
| 11 |
| 21 |
| 31 |
+-----+
4 rows in set (0.00 sec)
mysql> INSERT INTO autoinc1 VALUES (NULL), (NULL), (NULL), (NULL);
Query OK, 4 rows affected (0.00 sec)
Records: 4 Duplicates: 0 Warnings: 0
mysql> SELECT col FROM autoinc1;
+-----+
| col |
+-----+
| 1 |
| 11 |
| 21 |
| 31 |
| 35 |
| 45 |
| 55 |
| 65 |
+-----+
8 rows in set (0.00 sec)
auto_increment_increment鍜�auto_increment_offset鎵�绀虹殑鍊煎彲浠ョ敓鎴愮郴鍒�5 + N * 10,鍗筹紝[5,15,25,35,45,...]銆傚湪INSERT鍓�col 鍒楀唴鏈�澶х殑鍊间负31,AUTO_INCREMENT鏁板垪鐨勪笅涓�涓�间负35,鍥犳col涓彃鍏ョ殑鍊间粠璇ョ偣寮�濮嬶紝缁撴灉濡�SELECT鏌ヨ鎵�绀恒��
涓�瀹氳璁颁綇涓嶅彲鑳藉皢杩欎袱涓彉閲忕殑缁撴灉闄愬埗鍒颁竴涓〃涓紝鍥犳涓嶄細鏇夸唬鍏跺畠鏁版嵁搴撶鐞嗙郴缁熸彁渚涚殑搴忓垪锛涜繖浜涘彉閲忔帶鍒�MySQL鏈嶅姟鍣ㄤ笂all琛�AUTO_INCREMENT鍒楃殑鎵�鏈夎涓恒�傚鏋滄煇涓彉閲忚涓哄叏灞�鍙橀噺锛屽垯鍙湁閫氳繃灞�閮ㄨ缃皢鍏ㄥ眬鍊兼洿鏀瑰拰瑕嗙洊鍚庢垨mysqld閲嶅惎鍚庡叾浣滅敤鏂瑰彲鏀瑰彉锛涘鏋滃眬閮ㄨ缃紝鍒欐柊鍊煎奖鍝嶆墍鏈夎〃鐨�AUTO_INCREMENT鍒楋紝鍦ㄨ繖涓細璇濇湡闂村綋鍓嶇敤鎴峰湪杩欎簺琛ㄤ腑鎻掑叆浜嗘柊琛岋紝闄ら潪鍦ㄤ細璇濇湡闂存洿鏀逛簡杩欎簺鍊笺��
auto_increment_increment鐨� 榛樿鍊间负1銆傚弬瑙�6.12鑺傦紝鈥滃鏈嶅姟鍣ㄥ鍒朵腑鐨凙uto-Increment鈥�銆�
路 auto_increment_offset
璇ュ彉閲忕殑榛樿鍊间负1銆傝瑙�auto_increment_increment鐨勬弿杩般��
路 back_log
MySQL鏈夌殑涓昏杩炴帴璇锋眰鐨勬暟閲忋�傚綋涓�MySQL绾跨▼鍦ㄧ煭鏃堕棿鍐呭緱鍒拌澶氳繛鎺ヨ姹傛椂鍙戞尌浣滅敤銆備富绾跨▼闇�瑕佽姳涓�浜涙椂闂�(灏界寰堝皯)鏉ユ鏌ヨ繛鎺ュ苟鍚姩涓�涓柊绾跨▼銆�back_log鍊艰鏄�MySQL涓存椂鍋滄鍝嶅簲鏂拌姹傚墠鍦ㄧ煭鏃堕棿鍐呭彲浠ュ爢璧峰灏戣姹傘�傚鏋滀綘闇�瑕佸湪鐭椂闂村唴鍏佽澶ч噺杩炴帴锛屽彲浠ュ鍔犺鏁板�笺��
鎹㈠彞璇濊锛岃鍊间负鈥滆繘鈥�TCP/IP杩炴帴甯у惉闃熷垪鐨勫ぇ灏忋�傛搷浣滅郴缁熸湁璇ラ槦鍒楄嚜宸辩殑闄愬埗鍊笺�傛湰鎵嬪唽涓�Unix listen()绯荤粺璋冪敤椤靛簲鏈夋洿璇︾粏鐨勪俊鎭�傝鍙橀噺鏈�澶у�艰鏌ラ槄OS鏂囨。銆備紒鍥惧皢back_log璁剧疆涓洪珮浜庝綘鐨勬搷浣滅郴缁熼檺鍊兼槸寰掑姵鏃犵泭鐨勩��
路 basedir
MySQL瀹夎鍩哄噯鐩綍銆傚彲浠ョ敤--basedir閫夐」璁剧疆璇ュ彉閲忋��
路 bdb_cache_size
涓�BDB琛ㄧ紦瀛樼储寮曞拰琛屽垎閰嶇殑缂撳啿鍖虹殑澶у皬銆傚鏋滀綘涓嶄娇鐢�BDB琛紝浣犲簲鐢�--skip-bdb鍚姩mysqld浠ヤ究涓嶆氮璐硅缂撳瓨銆�
路 bdb_home
BDB琛ㄥ熀鍑嗙洰褰曘�傚簲涓�datadir鍙橀噺鐨勫�肩浉鍚屻��
路 bdb_log_buffer_size
涓�BDB琛ㄧ紦瀛樼储寮曞拰琛屽垎閰嶇殑缂撳啿鍖虹殑澶у皬銆傚鏋滀綘涓嶄娇鐢�BDB琛紝浣犲簲灏嗚鍊艰缃负0鎴栫敤--skip-bdb鍚姩mysqld浠ヤ究涓嶆氮璐硅缂撳瓨銆�
路 bdb_logdir
BDB瀛樺偍寮曟搸鍐欏畠鏃ュ織鏂囦欢鐨勭洰褰曘�傚彲浠ョ敤--bdb-logdir閫夐」璁剧疆璇ュ彉閲忋��
路 bdb_max_lock
鍦�BDB琛ㄤ笅鍙互婵�娲荤殑鏈�澶ч攣鏁�(榛樿涓�10,000)銆傚鏋滃綋浣犳墽琛岄暱浜嬪姟鎴栧綋mysqld蹇呴』妫�鏌ヨ澶氳鏉ヨ绠楁煡璇㈡椂鍑虹幇涓嬮潰鐨勯敊璇紝浣犲簲澧炲姞璇ュ�硷細
bdb: Lock table is out of available locks
Got error 12 from ...
路 bdb_shared_data
濡傛灉浣犳浣跨敤--bdb-shared-data搴斾负ON銆�
路 bdb_tmpdir
--bdb-tmpdir閫夐」鐨勫�笺��
路 binlog_cache_size
鍦ㄤ簨鍔¤繃绋嬩腑瀹圭撼浜岃繘鍒舵棩蹇�SQL璇彞鐨勭紦瀛樺ぇ灏忋�備簩杩涘埗鏃ュ織缂撳瓨鏄湇鍔″櫒鏀寔浜嬪姟瀛樺偍寮曟搸骞朵笖鏈嶅姟鍣ㄥ惎鐢ㄤ簡浜岃繘鍒舵棩蹇�(--log-bin閫夐」)鐨勫墠鎻愪笅涓烘瘡涓鎴风鍒嗛厤鐨勫唴瀛樸�傚鏋滀綘缁忓父浣跨敤澶х殑锛屽璇彞浜嬪姟锛屼綘鍙互澧炲姞璇ュ�间互鑾峰緱鏇存湁鐨勬�ц兘銆�Binlog_cache_use鍜�Binlog_cache_disk_use鐘舵�佸彉閲忓彲浠ョ敤鏉ヨ皟鏁磋鍙橀噺鐨勫ぇ灏忋�傚弬瑙�5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆�
路 bulk_insert_buffer_size
MyISAM 浣跨敤涓撶敤鏍戠姸缂撳瓨鏉ヤ娇INSERT ... SELECT銆�INSERT ... VALUES (...)銆�(...)銆� ...鍜�LOAD DATA INFILE鐨勫ぇ鍧楁彃鍏ユ洿蹇�傝鍙橀噺鐢ㄦ瘡绾跨▼鐨勫瓧鑺傛暟闄愬埗缂撳瓨鏍戠殑澶у皬銆傚皢瀹冭缃负0绂佺敤浼樺寲銆�娉�閲婏細鍙湁鍚戦潪绌鸿〃娣诲姞鏁版嵁鏃舵墠浣跨敤璇ョ紦瀛樸�� 榛樿鍊兼槸8MB銆�
路 character_set_client
鏉ヨ嚜瀹㈡埛绔殑璇彞鐨勫瓧绗﹂泦銆�
路 character_set_connection
鐢ㄤ簬娌℃湁瀛楃闆嗗鍏ョ鐨勬枃瀛楀拰鏁板瓧锛嶅瓧绗︿覆杞崲銆�
路 character_set_database
榛樿鏁版嵁搴撲娇鐢ㄧ殑瀛楃闆嗐�傚綋榛樿鏁版嵁搴撴洿鏀规椂锛屾湇鍔″櫒鍒欒缃鍙橀噺銆傚鏋滄病鏈夐粯璁ゆ暟鎹簱锛屽彉閲忕殑鍊煎悓character_set_server銆�
路 character_set_results
鐢ㄤ簬鍚戝鎴风杩斿洖鏌ヨ缁撴灉鐨勫瓧绗﹂泦銆�
路 character_set_ server
鏈嶅姟鍣ㄧ殑榛樿瀛楃闆嗐��
路 character_set_system
鏈嶅姟鍣ㄧ敤鏉ヤ繚瀛樿瘑鍒鐨勫瓧绗﹂泦銆傝鍊间竴瀹氭槸utf8銆�
路 character_sets_dir
瀛楃闆嗗畨瑁呯洰褰曘��
路 collation_connection
杩炴帴瀛楃闆嗙殑鏍″瑙勫垯銆�
路 collation_database
榛樿鏁版嵁搴撲娇鐢ㄧ殑鏍″瑙勫垯銆傚綋榛樿鏁版嵁搴撴敼鍙樻椂鏈嶅姟鍣ㄥ垯璁剧疆璇ュ彉閲忋�傚鏋滄病鏈夐粯璁ゆ暟鎹簱锛屽彉閲忕殑鍊煎悓collation_server銆�
路 collation_server
鏈嶅姟鍣ㄧ殑榛樿鏍″瑙勫垯銆�
路 completion_type
浜嬪姟缁撴潫绫诲瀷锛�
o 濡傛灉璇ュ�间负0(榛樿)锛�COMMIT鍜�ROLLBACK涓嶅彈褰卞搷銆�
o 濡傛灉璇ュ�间负1锛�COMMIT鍜�ROLLBACK鍒嗗埆绛夊悓浜�COMMIT AND CHAIN鍜�ROLLBACK AND CHAIN銆�(鏂颁簨鍔＄敤鍒氬垰缁撴潫鐨勪簨鍔＄浉鍚岀殑闂撮殧绛夌骇绔嬪嵆鍚姩锛�銆�
o 濡傛灉璇ュ�间负2锛�COMMIT鍜�ROLLBACK鍒嗗埆绛夊悓浜�COMM瀹�RELEASE鍜�ROLLBACK RELEASE銆�(浜嬪姟缁堟鍚庯紝鏈嶅姟鍣ㄦ柇寮�锛�銆�
路 concurrent_insert
濡傛灉涓�ON(榛樿鍊�)锛�MySQL鍏佽INSERT鍜�SELECT璇彞鍦ㄤ腑闂存病鏈夌┖鏁版嵁鍧楃殑MyISAM琛ㄤ腑骞惰杩愯銆備綘鍙互鐢�--safe鎴�--skip-new鍚姩mysqld鍏抽棴璇ラ�夐」銆�
璇ュ彉閲忎负鏁存暟锛屾湁3涓�硷細
|
鍊� |
鎻忚堪 |
|
0 |
鍏� |
|
1 |
(榛樿)鍦ㄦ病鏈夌┖鏁版嵁鍧楃殑MyISAM琛ㄤ腑鍚敤骞惰鎻掑叆 |
|
2 |
涓烘墍鏈�MyISAM琛ㄥ惎鐢ㄥ苟琛屾彃鍏ャ�傚鏋滆〃鏈夌┖璁板綍鎴栨琚彟涓�绾跨▼浣跨敤锛屾柊琛屽皢鎻掑叆鍒拌〃鐨勬渶鍚庛�傚鏋滆〃鏈娇鐢紝MySQL灏嗚繘琛屾櫘閫氳閿佸畾骞跺皢鏂拌鎻掑叆绌鸿褰曘�� |
路 connect_timeout
mysqld鏈嶅姟鍣�鐢�Bad handshake鍝嶅簲鍓嶇瓑寰呰繛鎺ュ寘鐨勭鏁般��
路 datadir
MySQL鏁版嵁鐩綍銆傚彲浠ョ敤--datadir閫夐」璁剧疆璇ュ彉閲忋��
路 date_format
璇ュ彉閲忔湭浣跨敤銆�
路 datetime_format
璇ュ彉閲忔湭浣跨敤銆�
路 default_week_format
WEEK() 鍑芥暟浣跨敤鐨勯粯璁ゆā寮忋��
路 delay_key_write
璇ラ�夐」鍙�傜敤MyISAM琛ㄣ�傚畠鍏锋湁涓嬭堪鍊煎彲浠ュ奖鍝�CREATE TABLE璇彞浣跨敤鐨�DELAY_KEY_WRITE琛ㄩ�夐」鐨勫鐞嗐��
|
閫夐」 |
鎻忚堪 |
|
OFF |
DELAY_KEY_WRITE琚拷鐣ャ�� |
|
ON |
MySQL鍦�CREATE TABLE涓敤DELAY_KEY_WRITE閫夐」銆傝繖鏄� 榛樿鍊笺�� |
|
ALL |
鐢ㄥ惎鐢�DELAY_KEY_WRITE閫夐」鍒涘缓琛ㄧ殑鐩稿悓鏂规硶瀵规墍鏈夋柊鎵撳紑琛ㄧ殑杩涜澶勭悊銆� |
濡傛灉鍚敤浜�DELAY_KEY_WRITE锛岃鏄庝娇鐢ㄨ椤圭殑琛ㄧ殑閿紦鍐插尯鍦ㄦ瘡娆℃洿鏂扮储寮曟椂涓嶈娓呯┖锛屽彧鏈夊叧闂〃鏃舵墠娓呯┖銆傞伄鎺╃洊鍙互澶уぇ鍔犲揩閿殑鍐欐搷浣滐紝浣嗗鏋滀綘浣跨敤璇ョ壒鎬э紝浣犲簲鐢�--myisam-recover閫夐」鍚姩鏈嶅姟鍣紝涓烘墍鏈�MyISAM琛ㄦ坊鍔犺嚜鍔ㄦ鏌�(渚嬪锛�--myisam-recover=BACKUP,FORCE)銆傚弬瑙�5.3.1鑺傦紝鈥�mysqld鍛戒护琛岄�夐」鈥�鍜�15.1.1鑺傦紝鈥淢yISAM鍚姩閫夐」鈥�銆�
璇锋敞鎰�--external-locking涓嶄负浣跨敤寤惰繜閿啓鍏ョ殑琛ㄦ彁渚涚储寮曠牬鍧忎繚鎶ゃ��
路 delayed_insert_limit
鎻掑叆delayed_insert_limit 寤惰繜琛屽悗锛�INSERT DELAYED 澶勭悊鍣ㄧ嚎绋嬫鏌ユ槸鍚︽湁鎸傝捣鐨�SELECT璇彞銆傚鏋滄湁锛屽湪缁х画鎻掑叆寤惰繜鐨勮涔嬪墠锛屽厑璁稿畠浠厛鎵ц銆�
路 delayed_insert_timeout
INSERT DELAYED澶勭悊鍣ㄧ嚎绋嬬粓姝㈠墠搴旂瓑寰�INSERT璇彞鐨勬椂闂淬��
路 delayed_queue_size
杩欐槸鍚勪釜琛ㄤ腑澶勭悊INSERT DELAYED璇彞鏃堕槦鍒椾腑琛岀殑鏁伴噺闄愬埗銆傚鏋滈槦鍒楁弧浜嗭紝鎵цINSERT DELAYED璇彞鐨勫鎴风搴旂瓑寰呯洿鍒伴槦鍒楀唴鍐嶆湁绌洪棿銆�
路 div_precision_increment
璇ュ彉閲忚鏄庣敤/鎿嶄綔绗︽墽琛岄櫎鎿嶄綔鐨勭粨鏋滃彲澧炲姞鐨勭簿纭害鐨勪綅鏁般�� 榛樿鍊兼槸4銆傛渶灏忓拰鏈�澶у�煎垎鍒负0鍜�30銆備笅闈㈢殑绀轰緥璇存槑浜嗗鍔� 榛樿鍊肩殑缁撴灉銆�
mysql> SELECT 1/7;
+--------+
| 1/7 |
+--------+
| 0.1429 |
+--------+
mysql> SET div_precision_increment = 12;
mysql> SELECT 1/7;
+----------------+
| 1/7 |
+----------------+
| 0.142857142857 |
+----------------+
路 engine_condition_pushdown
璇ュ彉閲忛�傜敤浜�NDB銆傞粯璁ゅ�间负0(OFF)锛氬鏋滀綘鎵ц绫讳技鏌ヨSELECT * FROM t WHERE mycol = 42锛屽叾涓�mycol涓烘病鏈夌储寮曠殑鍒楋紝褰撴弧浜嗙殑琛ㄦ壂鎻忔瘡涓�NDB鑺傜偣鏃讹紝鎵ц璇ユ煡璇��傛瘡涓妭鐐逛娇鐢�WHERE鏉′欢灏嗘瘡涓�琛屽彂閫佺粰MySQL鏈嶅姟鍣ㄣ�傚鏋�engine_condition_pushdown琚缃负1(ON)锛岃鏉′欢鈥�pushed down鈥濈粰瀛樺偍寮曟搸骞跺彂閫佺粰NDB鑺傜偣銆傛瘡涓妭鐐归兘鎵ц鎵弿锛屽苟鍙悜MySQL鏈嶅姟鍣ㄥ彂閫佸洖鍖归厤鏉′欢鐨勮銆�
路 expire_logs_days
浜岃繘鍒舵棩蹇楄嚜鍔ㄥ垹闄ょ殑澶╂暟銆傞粯璁ゅ�间负0,琛ㄧず鈥滄病鏈�鑷姩鍒犻櫎鈥濄�傚惎鍔ㄦ椂鍜屼簩杩涘埗鏃ュ織寰幆鏃跺彲鑳藉垹闄ゃ��
路 flush
濡傛灉鐢�--flush閫夐」鍚姩mysqld璇ュ�间负ON銆�
路 flush_time
濡傛灉璁句负闈為浂鍊硷紝姣忛殧flush_time绉掑垯鍏抽棴鎵�鏈夎〃浠ラ噴鏀剧‖鐩樿祫婧愬苟鍚屾鏈竻绌虹殑鏁版嵁銆傛垜浠缓璁彧鍦�Windows 9x鎴�Me锛屾垨鏈夋渶灏忚祫婧愮殑绯荤粺涓娇鐢ㄨ閫夐」銆�
路 ft_boolean_syntax
浣跨敤IN BOOLEAN MODE鎵ц鐨勫竷灏斿叏鏂囨悳绱㈡敮鎸佺殑鎿嶄綔绗︾郴鍒椼�傚弬瑙�12.7.1鑺傦紝鈥滃竷灏斿叏鏂囨悳绱⑩��銆�
榛樿鍙橀噺鍊间负 '+ -><()~*:""&|'銆傛洿鏀硅繖浜涘�肩殑瑙勫垯鏄細
o 鎿嶄綔绗﹀嚱鏁扮敱鍏跺湪瀛楃涓插唴鐨勪綅缃喅瀹氥��
o 鏇挎崲鍊煎繀椤绘槸14涓瓧绗︺��
o 姣忎釜瀛楃蹇呴』涓�ASCII鐮侀潪鏂囧瓧鏁板瓧瀛楃銆�
o 绗�1涓垨绗�2涓瓧绗﹀繀椤讳负绌烘牸銆�
o 闄ら潪璇彞鍦ㄧ11涓瓧绗﹀拰绗�12涓瓧绗﹀寮曠敤浜嗘搷浣滅锛屽惁鍒欎笉鍏佽澶嶅埗銆傝繖涓や釜瀛楃鍙互涓嶇浉鍚岋紝浣嗚繖鏄敮涓�鍙兘鐨勪袱涓��
o 浣嶇疆10銆�13鍜�14(榛樿璁剧疆涓衡��:鈥欍�佲��&鈥欏拰鈥�|鈥�)淇濈暀鐢ㄤ簬灏嗘潵鎵╁睍銆�
路 ft_max_word_len
FULLTEXT绱㈠紩涓墍鍖呭惈鐨勫瓧鐨勬渶澶ч暱搴︺��
娉�閲婏細鏇存敼璇ュ彉閲忓悗蹇呴』閲嶅缓FULLTEXT绱㈠紩銆傚簲浣跨敤REPAIR TABLE tbl_name QUICK銆�
路 ft_min_word_len
FULLTEXT绱㈠紩涓墍鍖呭惈鐨勫瓧鐨勬渶灏忛暱搴︺��
娉�閲婏細鏇存敼璇ュ彉閲忓悗蹇呴』閲嶅缓FULLTEXT绱㈠紩銆傚簲浣跨敤REPAIR TABLE tbl_name QUICK銆�
路 ft_query_expansion_limit
浣跨敤WITH QUERY EXPANSION杩涜鍏ㄦ枃鎼滅储鐨勬渶澶у尮閰嶆暟銆�
路 ft_stopword_file
鐢ㄤ簬璇诲彇鍏ㄦ枃鎼滅储鐨勫仠姝㈠瓧娓呭崟鐨勬枃浠躲�傝鏂囦欢涓殑鎵�鏈夊瓧閮戒細鐢ㄥ埌锛涙敞閲婁笉閲嶈銆傞粯璁ゆ儏鍐典笅锛屼娇鐢ㄥ唴宓屽紡鍋滄瀛楁竻鍗�(濡�myisam/ft_static.c鏂囦欢涓墍瀹氫箟)銆傚皢璇ュ彉閲忚缃负绌哄瓧绗︿覆('')鍒欑鐢ㄥ仠姝㈠瓧杩囨护銆�
娉�閲婏細鏇存敼璇ュ彉閲忔垨鍋滄瀛楁枃浠剁殑鍐呭鍚庡繀椤婚噸寤�FULLTEXT绱㈠紩銆傚簲浣跨敤REPAIR TABLE tbl_name QUICK銆�
路 group_concat_max_len
鍏佽鐨�GROUP_CONCAT()鍑芥暟缁撴灉鐨勬渶澶ч暱搴︺��
路 have_archive
濡傛灉mysqld鏀寔ARCHIVE琛ㄥ垯涓�YES锛屽惁鍒欎负NO銆�
路 have_bdb
濡傛灉mysqld鏀寔BDB琛ㄥ垯涓�YES銆傚鏋滀娇鐢�--skip-bdb鍒欎负DISABLED銆�
路 have_blackhole_engine
濡傛灉mysqld鏀寔BLACKHOLE琛ㄥ垯涓�YES锛屽惁鍒欎负NO銆�
路 have_compress
鏄惁zlib鍘嬬缉搴撻�傚悎璇ユ湇鍔″櫒銆傚鏋滀笉閫傚悎锛屼笉鑳戒娇鐢�COMPRESS()鍜�UNCOMPRESS()鍑芥暟銆�
路 have_crypt
鏄惁crypt()绯荤粺璋冪敤閫傚悎璇ユ湇鍔″櫒銆傚鏋滀笉閫傚悎锛屼笉鑳戒娇鐢�CRYPT()鍑芥暟銆�
路 have_csv
濡傛灉mysqld鏀寔ARCHIVE琛ㄥ垯涓�YES锛屽惁鍒欎负NO銆�
路 have_example_engine
濡傛灉mysqld鏀寔EXAMPLE琛ㄥ垯涓�YES锛屽惁鍒欎负NO銆�
have_federated_engine
濡傛灉mysqld鏀寔FEDERATED琛ㄥ垯涓�YES锛屽惁鍒欎负NO銆�
路 have_geometry
鏄惁鏈嶅姟鍣ㄦ敮鎸佺┖闂存暟鎹被鍨嬨��
路 have_innodb
濡傛灉mysqld鏀寔InnoDB琛ㄥ垯涓�YES銆傚鏋滀娇鐢�--skip-innodb鍒欎负DISABLED銆�
路 have_isam
鍦�MySQL 5.1涓�,鍙槸涓轰簡鍚戝悗鍏煎鏄剧ず璇ュ�硷紝骞朵笖鎬绘槸NO锛屽洜涓轰笉鍐嶆敮鎸�ISAM琛ㄣ��
路 have_ndbcluster
濡傛灉mysqld鏀寔NDB CLUSTER琛ㄥ垯涓�YES銆傚鏋滀娇鐢ㄤ簡--skip-ndbcluster鍒欎负DISABLED銆�
路 have_partition_engine
濡傛灉mysqld鏀寔鍒嗗尯鍒欎负YES銆傚湪MySQL 5.1.1涓姞鍏ャ��
路 have_openssl
濡傛灉mysqld鏀寔瀹㈡埛绔�/鏈嶅姟鍣ㄥ崗璁殑SSL(鍔犲瘑)鍒欎负YES銆�
路 have_query_cache
濡傛灉mysqld鏀寔鏌ヨ缂撳瓨鍒欎负YES銆�
路 have_raid
濡傛灉mysqld鏀寔RAID閫夐」鍒欎负YES銆�
路 have_rtree_keys
RTREE绱㈠紩鏄惁鍙敤銆�(鐢ㄤ簬MyISAM琛ㄧ殑绌洪棿绱㈠紩锛�銆�
路 have_symlink
鏄惁鍚敤绗﹀彿閾炬帴鏀寔銆傚湪Unix涓渶瑕佺敤浜庢敮鎸�DATA DIRECTORY鍜�INDEX DIRECTORY琛ㄩ�夐」銆�
路 init_connect
鏈嶅姟鍣ㄤ负姣忎釜杩炴帴鐨勫鎴风鎵ц鐨勫瓧绗︿覆銆傚瓧绗︿覆鐢变竴涓垨澶氫釜SQL璇彞缁勬垚銆傝鎯虫寚瀹氬涓鍙ワ紝鐢ㄥ垎鍙烽棿闅斿紑銆備緥濡傦紝姣忎釜瀹㈡埛绔紑濮嬫椂榛樿鍚敤autocommit妯″紡銆傛病鏈夊叏灞�鏈嶅姟鍣ㄥ彉閲忓彲浠ヨ瀹�autocommit榛樿鎯呭喌涓嬪簲绂佺敤锛屼絾鍙互鐢�init_connect鏉ヨ幏寰楃浉鍚岀殑鏁堟灉锛�
SET GLOBAL init_connect='SET AUTOCOMMIT=0';
杩樺彲浠ュ湪鍛戒护琛屾垨閫夐」鏂囦欢涓缃鍙橀噺銆傝鎯充娇鐢ㄩ�夐」鏂囦欢璁剧疆鍙橀噺锛屽簲鍖呮嫭涓嬭堪琛岋細
[mysqld]
init_connect='SET AUTOCOMMIT=0'
璇锋敞鎰�init_connect鐨勫唴瀹瑰苟涓嶄负鎷ユ湁SUPER鏉冮檺鐨勭敤鎴锋墽琛岋紱瀹為檯鏄唴瀹硅缃敊璇�(鍖呭惈閿欒鏌ヨ锛屼緥濡傝娉曢敊璇�)锛岃繖鏍蜂娇鎵�鏈夎繛鎺ュけ璐ャ�備笉涓�SUPER鐢ㄦ埛鎵ц锛屼娇SUPER鐢ㄦ埛鍙互鎵撳紑杩炴帴骞跺浐瀹�init_connect銆�
路 init_file
鍚姩鏈嶅姟鍣ㄦ椂鐢�--init-file閫夐」鎸囧畾鐨勬枃浠跺悕銆傛枃浠朵腑鍖呭惈鏈嶅姟鍣ㄥ惎鍔ㄦ椂瑕佹墽琛岀殑SQL璇彞銆傛瘡涓鍙ュ繀椤诲湪鍚屼竴琛屼腑骞朵笖涓嶈兘鍖呮嫭娉ㄩ噴銆�
路 init_slave
璇ュ彉閲忕被浼�init_connect锛屼絾鏄瘡娆�SQL绾跨▼鍚姩鏃朵粠鏈嶅姟鍣ㄥ簲鎵ц璇ュ瓧绗︿覆銆傝瀛楃涓茬殑鏍煎紡涓�init_connect鍙橀噺鐩稿悓銆�
路 innodb_xxx
InnoDB绯荤粺鍙橀噺鍒楀叆15.2.4鑺傦紝鈥淚nnoDB鍚姩閫夐」鈥�銆�
路 interactive_timeout
鏈嶅姟鍣ㄥ叧闂氦浜掑紡杩炴帴鍓嶇瓑寰呮椿鍔ㄧ殑绉掓暟銆備氦浜掑紡瀹㈡埛绔畾涔変负鍦�mysql_real_connect()涓娇鐢�CLIENT_INTERACTIVE閫夐」鐨勫鎴风銆傚張瑙�wait_timeout銆�
路 join_buffer_size
鐢ㄤ簬瀹屽叏鑱旀帴鐨勭紦鍐插尯鐨勫ぇ灏�(褰撲笉浣跨敤绱㈠紩鐨勬椂鍊欎娇鐢ㄨ仈鎺ユ搷浣�)銆備竴鑸儏鍐佃幏寰楀揩閫熻仈鎺ョ殑鏈�濂芥柟娉曟槸娣诲姞绱㈠紩銆傚綋澧炲姞绱㈠紩鏃朵笉鍙兘閫氳繃澧炲姞join_buffer_size鍊兼潵鑾峰緱蹇�熷畬鍏ㄨ仈鎺ャ�傚皢涓轰袱涓〃涔嬮棿鐨勬瘡涓畬鍏ㄨ仈鎺ュ垎閰嶈仈鎺ョ紦鍐插尯銆傚浜庡涓〃涔嬮棿涓嶄娇鐢ㄧ储寮曠殑澶嶆潅鑱旀帴锛岄渶瑕佸鑱旀帴缂撳啿鍖恒��
路 key_buffer_size
MyISAM琛ㄧ殑绱㈠紩鍧楀垎閰嶄簡缂撳啿鍖猴紝鐢辨墍鏈夌嚎绋嬪叡浜��key_buffer_size鏄储寮曞潡缂撳啿鍖虹殑澶у皬銆傞敭鍊肩紦鍐插尯鍗充负閿�肩紦瀛樸��
key_buffer_size鐨勬渶澶у厑璁歌瀹氬�间负4GB銆傛湁鏁堟渶澶у�煎彲浠ユ洿灏忥紝鍙栧喅浜庡彲鐢ㄧ墿鐞�RAM鍜屾搷浣滅郴缁熸垨纭欢骞冲彴寮哄姞鐨勬瘡涓繘绋嬬殑RAM闄愬埗銆�
澧炲姞璇ュ�硷紝杈惧埌浣犲彲浠ユ彁渚涚殑鏇村ソ鐨勭储寮曞鐞�(鎵�鏈夎鍜屽涓啓鎿嶄綔)銆傞�氬父涓轰富瑕佽繍琛�MySQL鐨勬満鍣ㄥ唴瀛樼殑25%銆備絾鏄紝濡傛灉浣犲皢璇ュ�艰寰楄繃澶�(渚嬪锛屽ぇ浜庢�诲唴瀛樼殑50%)锛岀郴缁熷皢杞崲涓洪〉骞跺彉寰楁瀬鎱���MySQL渚濊禆鎿嶄綔绯荤粺鏉ユ墽琛屾暟鎹鍙栨椂鐨勬枃浠剁郴缁熺紦瀛橈紝鍥犳浣犲繀椤讳负鏂囦欢绯荤粺缂撳瓨鐣欎竴浜涚┖闂淬��
鍚屾椂鍐欏琛屾椂瑕佹兂閫熷害鏇村揩锛屽簲浣跨敤LOCK TABLES銆傚弬瑙�13.4.5鑺傦紝鈥淟OCK TABLES鍜孶NLOCK TABLES璇硶鈥�銆�
浣犲彲浠ラ�氳繃鎵цSHOW STATUS璇彞骞舵鏌�Key_read_requests銆�Key_reads銆�Key_write_requests鍜�Key_writes鐘舵�佸彉閲忔潵妫�鏌ラ敭鍊肩紦鍐插尯鐨勬�ц兘銆傚弬瑙�13.5.4鑺傦紝鈥淪HOW璇硶鈥�銆�
Key_reads/Key_read_requests姣斾緥涓�鑸簲灏忎簬0.01銆傚鏋滀綘浣跨敤鏇存柊鍜屽垹闄わ紝Key_writes/Key_write_requests姣斾緥閫氬父鎺ヨ繎1锛屼絾濡傛灉浣犳洿鏂版椂浼氬悓鏃跺奖鍝嶅埌澶氳鎴栧鏋滀綘姝ｄ娇鐢�DELAY_KEY_WRITE琛ㄩ�夐」锛屽彲鑳藉皬寰楀銆�
鐢�key_buffer_size缁撳悎Key_blocks_unused鐘舵�佸彉閲忓拰缂撳啿鍖哄潡澶у皬锛屽彲浠ョ‘瀹氫娇鐢ㄧ殑閿�肩紦鍐插尯鐨勬瘮渚嬨�備粠key_cache_block_size鏈嶅姟鍣ㄥ彉閲忓彲浠ヨ幏寰楃紦鍐插尯鍧楀ぇ灏忋�備娇鐢ㄧ殑缂撳啿鍖虹殑姣斾緥涓猴細
1 - ((Key_blocks_unused * key_cache_block_size) / key_buffer_size)
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路 key_cache_age_threshold
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路 key_cache_block_size
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路 key_cache_division_limit
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路 language
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路 large_file_support
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路 large_pages
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路 license
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路 local_infile
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路 locked_in_memory
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路 log
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路 log_bin
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路 log_bin_trust_routine_creators
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路 log_error
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路 log_slave_updates
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路 log_slow_queries
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路 log_warnings
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路 long_query_time
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路 low_priority_updates
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路 lower_case_file_system
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路 lower_case_table_names
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濡傛灉杩愯MySQL鐨勭郴缁熷鏂囦欢鍚嶇殑澶у皬鍐欎笉鏁忔劅(渚嬪Windows鎴�Mac OS X)锛屼綘涓嶅簲灏嗚鍙橀噺璁剧疆涓�0銆傚鏋滃惎鍔ㄦ椂娌℃湁璁剧疆璇ュ彉閲忥紝骞朵笖鏁版嵁鐩綍鎵�鍦ㄦ枃浠剁郴缁熷鏂囦欢鍚嶇殑澶у皬鍐欎笉鏁忔劅锛�MySQL鑷姩灏�lower_case_table_names璁剧疆涓�2銆�
路 max_allowed_packet
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路 max_binlog_cache_size
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路 max_binlog_size
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路 max_connect_errors
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路 max_connections
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路 max_delayed_threads
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路 max_error_count
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路 max_heap_table_size
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路 max_insert_delayed_threads
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路 max_join_size
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灏嗚鍙橀噺璁剧疆涓�DEFAULT涔嬪鐨勫�硷紝灏�SQL_BIG_SELECTS鐨勫�奸噸璁句负0銆�濡傛灉浣犻噸鏂拌缃�SQL_BIG_SELECTS鍊硷紝max_join_size鍙橀噺琚拷鐣ャ��
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路 max_length_for_sort_data
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路 max_relay_log_size
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路 max_seeks_for_key
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路 max_sort_length
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路 max_tmp_tables
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路 max_user_connections
浠讳綍缁欏畾鐨�MySQL璐︽埛鍏佽鐨勬渶澶у悓鏃惰繛鎺ユ暟銆�0鍊艰〃绀衡�滄病鏈�闄愬埗鈥濄��
璇ュ彉閲忓叿鏈夊叏灞�鑼冨洿鍜�(鍙)浼氳瘽鑼冨洿銆備細璇濆彉閲忕殑鐨勫�间笌鍏ㄥ眬鍙橀噺鐨勫�肩浉鍚岋紝闄ら潪褰撳墠璐︽埛鍏锋湁闈為浂MAX_USER_CONNECTIONS璧勬簮闄愬埗銆傚湪杩欑鎯呭喌涓嬶紝浼氳瘽鍊煎弽搴斾簡璐︽埛闄愬埗銆�
路 max_write_lock_count
瓒呰繃鍐欓攣瀹氶檺鍒跺悗锛屽厑璁搁儴鍒嗚閿佸畾銆�
路 myisam_data_pointer_size
榛樿鎸囬拡澶у皬锛屽崟浣嶆槸瀛楄妭锛屽綋鏈寚瀹�MAX_ROWS閫夐」鏃讹紝CREATE TABLE浣跨敤璇ュ彉閲忓垱寤�MyISAM琛ㄣ�傝鍙橀噺涓嶈兘灏忎簬2鎴栧ぇ浜�7銆� 榛樿鍊兼槸6銆傚弬瑙�A.2.11鑺傦紝鈥滆〃宸叉弧鈥�銆�
路 (DEPRECATED) myisam_max_extra_sort_file_size
娉�閲婏細MySQL 5.1涓嶆敮鎸佽鍙橀噺銆傝缁嗕俊鎭弬瑙�MySQL 5.0 鍙傝�冩墜鍐�銆�
路 myisam_max_sort_file_size
閲嶅缓MyISAM绱㈠紩(鍦�REPAIR TABLE銆�ALTER TABLE鎴�LOAD DATA INFILE杩囩▼涓�)鏃讹紝鍏佽MySQL浣跨敤鐨勪复鏃舵枃浠剁殑鏈�澶х┖闂村ぇ灏忋�傚鏋滄枃浠剁殑澶у皬瓒呰繃璇ュ�硷紝鍒欎娇鐢ㄩ敭鍊肩紦瀛樺垱寤虹储寮曪紝瑕佹參寰楀銆傝鍊肩殑鍗曚綅涓哄瓧鑺傘��
路 myisam_recover_options
--myisam-recover閫夐」鐨勫�笺��
路 myisam_repair_threads
濡傛灉璇ュ�煎ぇ浜�1锛屽湪Repair by sorting杩囩▼涓苟琛屽垱寤�MyISAM琛ㄧ储寮�(姣忎釜绱㈠紩鍦ㄨ嚜宸辩殑绾跨▼鍐�)銆� 榛樿鍊兼槸1銆�娉�閲婏細澶氱嚎绋嬬淮鎶や粛鐒舵槸alpha 缂栫爜銆�
路 myisam_sort_buffer_size
褰撳湪REPAIR TABLE鎴栫敤CREATE INDEX鍒涘缓绱㈠紩鎴�ALTER TABLE杩囩▼涓帓搴� MyISAM绱㈠紩鍒嗛厤鐨勭紦鍐插尯銆�
路 myisam_stats_method
褰撲负MyISAM琛ㄦ悳闆嗗叧浜庣储寮曞�煎垎鍙戠殑缁熻淇℃伅鏃舵湇鍔″櫒濡備綍澶勭悊NULL鍊笺�傝鍙橀噺鏈変袱涓彲鑳界殑鍊硷紝nulls_equal鍜�nulls_unequal銆傚浜�nulls_equal锛岃涓烘墍鏈�NULL绱㈠紩鍊兼椂鐩哥瓑鐨勶紝骞跺舰鎴愪竴涓暟鍊肩粍锛屽叾绌洪棿澶у皬绛変簬NULL鍊肩殑鏁般�傚浜�nulls_unequal锛�NULL鍊艰涓烘槸涓嶇浉绛夌殑锛屾瘡涓�NULL褰㈡垚涓�涓暟鍊肩粍锛屽ぇ灏忎负1銆�
鏂规硶鐢ㄤ簬鐢熸垚琛ㄧ粺璁′俊鎭紝褰卞搷浼樺寲鍣ㄥ浣曢�夋嫨绱㈠紩鏉ユ墽琛屾煡璇紝璇︾粏鎻忚堪瑙�7.4.7鑺傦紝鈥淢yISAM绱㈠紩缁熻闆嗗悎鈥�銆�
路 multi_read_range
鎸囧畾鑼冨洿閫夋嫨杩囩▼涓彂閫佸埌瀛樺偍寮曟搸鐨勮寖鍥寸殑鏈�澶у�笺�傞粯璁ゅ�兼槸256銆傚悜寮曟搸鍙戦�佸涓寖鍥村彲浠ュぇ澶ф敼杩涙煇浜涢�夋嫨鐨勬�ц兘锛岀壒鍒槸瀵�NDBCLUSTER銆傝寮曟搸闇�瑕佸悜鎵�鏈夎妭鐐瑰彂閫佽寖鍥磋姹傦紝鍚屾椂鍙戦�佽澶氳姹傚彲浠ュぇ澶ч檷浣庨�氫俊鎴愭湰銆�
路 named_pipe
(鍙�傜敤Windows)璇存槑鏈嶅姟鍣ㄦ槸鍚︽敮鎸佸懡鍚嶇閬撹繛鎺ャ��
路 net_buffer_length
鍦ㄦ煡璇箣闂村皢閫氫俊缂撳啿鍖洪噸璁句负璇ュ�笺�備竴鑸儏鍐典笉搴旀敼鍙橈紝浣嗗鏋滃唴瀛樺緢灏忥紝鍙互灏嗗畠璁剧疆涓烘湡鏈涚殑瀹㈡埛绔彂閫佺殑SQL璇彞鐨勯暱搴︺�傚鏋滆鍙ヨ秴鍑鸿闀垮害锛岀紦鍐插尯鑷姩鎵╁ぇ锛岀洿鍒�max_allowed_packet瀛楄妭銆�
路 net_read_timeout
涓柇璇诲墠绛夊緟杩炴帴鐨勫叾瀹冩暟鎹殑绉掓暟銆傚綋鏈嶅姟鍣ㄤ粠瀹㈡埛绔鏁版椂锛�net_read_timeout鎸囨帶鍒朵綍鏃朵腑鏂殑瓒呮椂鍊笺�傚綋鏈嶅姟鍣ㄥ悜瀹㈡埛绔啓鏃讹紝net_write_timeout鎸囨帶鍒朵綍鏃朵腑鏂殑瓒呮椂鍊笺�傚張瑙�slave_net_timeout銆�
路 net_retry_count
濡傛灉鏌愪釜閫氫俊绔彛鐨勮鎿嶄綔涓柇浜嗭紝鍦ㄦ斁寮冨墠閲嶈瘯澶氭銆傚湪FreeBSD涓鍊煎簲璁惧緱寰堥珮锛屽洜涓哄唴閮ㄤ腑鏂皢鍙戦�佽嚦鎵�鏈夌嚎绋嬨��
路 net_write_timeout
涓柇鍐欎箣鍓嶇瓑寰呭潡鍐欏叆杩炴帴鐨勭鏁般�傚張瑙�net_read_timeout銆�
路 new
鍦�MySQL 4.0涓娇鐢ㄨ鍙橀噺鏉ユ墦寮�4.1涓殑涓�浜涜涓猴紝骞剁敤浜庡悜鍚庡吋瀹规�с�傚湪MySQL 5.1涓�,瀹冪殑鍊间竴鐩存槸OFF.
路 old_passwords
鏄惁鏈嶅姟鍣ㄥ簲涓�MySQL鐢ㄦ埛璐︽埛浣跨敤pre-4.1-style瀵嗙爜銆傚弬瑙�A.2.3鑺傦紝鈥滃鎴风涓嶆敮鎸侀壌瀹氬崗璁��銆�
路 one_shot
杩欎笉鏄竴涓彉閲忥紝浣嗗綋璁剧疆鍙橀噺鏄彲浠ヤ娇鐢ㄥ畠銆傚叾鎻忚堪瑙�13.5.3鑺傦紝鈥淪ET璇硶鈥�銆�
路 one_shot
杩欎笉鏄竴涓彉閲忥紝浣嗗綋璁剧疆鍙橀噺鏄彲浠ヤ娇鐢ㄥ畠銆傚叾鎻忚堪瑙�13.5.3鑺傦紝鈥淪ET璇硶鈥�銆�
路 open_files_limit
鎿嶄綔绯荤粺鍏佽mysqld鎵撳紑鐨勬枃浠剁殑鏁伴噺銆傝繖鏄郴缁熷厑璁哥殑瀹為檯鍊硷紝鍙兘涓庝綘鍦ㄥ惎鍔ㄩ�夐」涓祴缁�mysqld鐨勫�间笉鍚屻�傝嫢鍦ㄧ郴缁熶腑MySQL涓嶈兘鏇存敼鎵撳紑鐨勬枃浠剁殑鏁伴噺锛屽垯璇ュ�间负0銆�
路 optimizer_prune_level
鍦ㄦ煡璇紭鍖栦粠浼樺寲鍣ㄦ悳绱㈢┖闂磋鍑忎綆甯屾湜灞�閮ㄨ鍒掍腑浣跨敤鐨勬帶鍒舵柟娉曘��0鍊肩鐢ㄨ鏂规硶锛屼互渚夸紭鍖栧櫒杩涜绌蜂妇鎼滅储銆傚�间负1浣夸紭鍖栧櫒鏍规嵁涓棿鏂规涓緱鍑虹殑琛屾暟鏉ヨ鍑忔柟妗堛��
路 optimizer_search_depth
鏌ヨ浼樺寲鍣ㄨ繘琛岀殑鎼滅储鐨勬渶澶ф繁搴︺�傚鏋滃�煎ぇ浜庢煡璇腑鐨勫叧绯绘暟鍒欐煡璇㈡柟妗堟瘮杈冧匠锛屼絾鐢熸垚鏌ヨ鎵ц鏂规闇�瑕佺殑鏃堕棿鏇撮暱銆傚�煎ぇ浜庢煡璇腑鐨勫叧绯绘暟鍒欒繑鍥炵殑鎵ц鏂规鏇村揩锛屼絾鏂规杩滄病鏈変紭鍖栥�傚鏋滆缃负0, 绯荤粺鑷姩閫夋嫨鍚堢悊鐨勫�笺�傚鏋滆缃负鏌ヨ涓娇鐢ㄧ殑琛ㄧ殑鏈�澶ф暟鍔�2,浼樺寲鍣ㄨ浆鎹负MySQL 5.0.0(鍜屼互鍓嶇殑鐗堟湰)涓娇鐢ㄧ殑绠楁硶骞舵悳绱���
路 pid_file
杩涚▼ID (PID)鏂囦欢鐨勮矾寰勫悕銆傚彲浠ョ敤--pid-file閫夐」璁剧疆璇ュ彉閲忋��
路 plugin_dir
鎻掍欢鐩綍鐨勮矾寰勩�傚湪MySQL 5.1.2涓姞鍏ヤ簡璇ュ彉閲忋��
路 port
鏈嶅姟鍣ㄥ抚鍚�TCP/IP杩炴帴鎵�鐢ㄧ鍙ｃ�傚彲浠ョ敤--port閫夐」璁剧疆璇ュ彉閲忋��
路 preload_buffer_size
閲嶈浇绱㈠紩鏃跺垎閰嶇殑缂撳啿鍖哄ぇ灏忋��
路 protocol_version
MySQL鏈嶅姟鍣ㄤ娇鐢ㄧ殑瀹㈡埛绔�/鏈嶅姟鍣ㄥ崗璁殑鐗堟湰銆�
路 query_alloc_block_size
涓烘煡璇㈠垎鏋愬拰鎵ц杩囩▼涓垱寤虹殑瀵硅薄鍒嗛厤鐨勫唴瀛樺潡澶у皬銆傚鏋滃唴瀛樺垎娈佃繃绋嬩腑閬囧埌闂锛屽皢璇ュ彉閲忓鍔犱竴浣嶄細鏈夊府鍔┿��
路 query_cache_limit
涓嶈缂撳瓨澶т簬璇ュ�肩殑缁撴灉銆傞粯璁ゅ�兼槸1048576(1MB)銆�
路 query_cache_min_res_unit
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路 query_cache_size
涓虹紦瀛樻煡璇㈢粨鏋滃垎閰嶇殑鍐呭瓨鐨勬暟閲忋�傞粯璁ゅ�兼槸0锛屽嵆绂佺敤鏌ヨ缂撳瓨銆傝娉ㄦ剰鍗充娇query_cache_type璁剧疆涓�0涔熷皢鍒嗛厤姝ゆ暟閲忕殑鍐呭瓨銆傝缁嗕俊鎭弬瑙�5.13.3鑺傦紝鈥滄煡璇㈤珮閫熺紦鍐查厤缃��銆�
路 query_cache_type
璁剧疆鏌ヨ缂撳瓨绫诲瀷銆傝缃�GLOBAL鍊煎彲浠ヨ缃悗闈㈢殑鎵�鏈夊鎴风杩炴帴鐨勭被鍨嬨�傚鎴风鍙互璁剧疆SESSION鍊间互褰卞搷浠栦滑鑷繁瀵规煡璇㈢紦瀛樼殑浣跨敤銆備笅闈㈢殑琛ㄦ樉绀轰簡鍙兘鐨勫�硷細
|
閫夐」 |
鎻忚堪 |
|
0鎴�OFF |
涓嶈缂撳瓨鎴栨煡璇㈢粨鏋溿�傝娉ㄦ剰杩欐牱涓嶄細鍙栨秷鍒嗛厤鐨勬煡璇㈢紦瀛樺尯銆傝鎯冲彇娑堬紝浣犲簲灏�query_cache_size璁剧疆涓�0銆� |
|
1鎴�ON |
缂撳瓨闄や簡浠�SELECT SQL_NO_CACHE寮�澶寸殑鎵�鏈夋煡璇㈢粨鏋溿�� |
|
2鎴�DEMAND |
鍙紦瀛樹互SELECT SQL_NO_CACHE寮�澶寸殑鏌ヨ缁撴灉銆� |
璇ュ彉閲忛粯璁よ涓�ON銆�
路 query_cache_wlock_invalidate
涓�鑸儏鍐碉紝褰撳鎴风瀵�MyISAM琛ㄨ繘琛�WRITE閿佸畾鏃讹紝濡傛灉鏌ヨ缁撴灉浣嶄簬鏌ヨ缂撳瓨涓紝鍒欏叾瀹冨鎴风鏈閿佸畾锛屽彲浠ュ璇ヨ〃杩涜鏌ヨ銆傚皢璇ュ彉閲忚缃负1锛屽垯鍙互瀵硅〃杩涜WRITE閿佸畾锛屼娇鏌ヨ缂撳瓨鍐呮墍鏈夊璇ヨ〃杩涜鐨勬煡璇㈠彉寰楅潪娉曘�傝繖鏍峰綋閿佸畾鐢熸晥鏃讹紝鍙互寮哄埗鍏跺畠璇曞浘璁块棶琛ㄧ殑瀹㈡埛绔潵绛夊緟銆�
路 query_prealloc_size
鐢ㄤ簬鏌ヨ鍒嗘瀽鍜屾墽琛岀殑鍥哄畾缂撳啿鍖虹殑澶у皬銆傚湪鏌ヨ涔嬮棿璇ョ紦鍐插尯涓嶉噴鏀俱�傚鏋滀綘鎵ц澶嶆潅鏌ヨ锛屽垎閰嶆洿澶х殑query_prealloc_size鍊煎彲浠ュ府鍔╂彁楂樻�ц兘锛屽洜涓哄畠鍙互闄嶄綆鏌ヨ杩囩▼涓湇鍔″櫒鍒嗛厤鍐呭瓨鐨勯渶姹傘��
路 range_alloc_block_size
鑼冨洿浼樺寲鏃跺垎閰嶇殑鍧楃殑澶у皬銆�
路 read_buffer_size
姣忎釜绾跨▼杩炵画鎵弿鏃朵负鎵弿鐨勬瘡涓〃鍒嗛厤鐨勭紦鍐插尯鐨勫ぇ灏�(瀛楄妭)銆傚鏋滆繘琛屽娆¤繛缁壂鎻忥紝鍙兘闇�瑕佸鍔犺鍊硷紝 榛樿鍊间负131072銆�
路 read_only
褰撳彉閲忓澶嶅埗浠庢湇鍔″櫒璁剧疆涓�ON鏃讹紝浠庢湇鍔″櫒涓嶅厑璁告洿鏂帮紝闄ら潪閫氳繃浠庢湇鍔″櫒鐨勭嚎绋嬫垨鐢ㄦ埛鎷ユ湁SUPER鏉冮檺銆傚彲浠ョ‘淇濅粠鏈嶅姟鍣ㄤ笉鎺ュ彈瀹㈡埛绔殑鏇存柊鍛戒护銆�
路 relay_log_purge
褰撲笉鍐嶉渶瑕佷腑缁ф棩蹇楁椂绂佺敤鎴栧惎鐢ㄨ嚜鍔ㄦ竻绌轰腑缁ф棩蹇椼�傞粯璁ゅ�兼槸1(鍚敤)銆�
路 read_rnd_buffer_size
褰撴帓搴忓悗鎸夋帓搴忓悗鐨勯『搴忚鍙栬鏃讹紝鍒欓�氳繃璇ョ紦鍐插尯璇诲彇琛岋紝閬垮厤鎼滅储纭洏銆傚皢璇ュ彉閲忚缃负杈冨ぇ鐨勫�煎彲浠ュぇ澶ф敼杩�ORDER BY鐨勬�ц兘銆備絾鏄紝杩欐槸涓烘瘡涓鎴风鍒嗛厤鐨勭紦鍐插尯锛屽洜姝や綘涓嶅簲灏嗗叏灞�鍙橀噺璁剧疆涓鸿緝澶х殑鍊笺�傜浉鍙嶏紝鍙负闇�瑕佽繍琛屽ぇ鏌ヨ鐨勫鎴风鏇存敼浼氳瘽鍙橀噺銆�
路 secure_auth
濡傛灉鐢�--secure-auth閫夐」鍚姩浜�MySQL鏈嶅姟鍣紝瀹冨皢闃诲鏈夋棫鏍煎紡(4.1涔嬪墠)瀵嗙爜鐨勬墍鏈夎处鎴锋墍鍙戣捣鐨勮繛鎺ャ�傚湪杩欑鎯呭喌涓嬶紝璇ュ彉閲忕殑鍊间负ON锛屽惁鍒欎负OFF銆�
濡傛灉浣犳兂瑕侀槻姝娇鐢ㄦ棫鏍煎紡鐨勫瘑鐮�(鑷翠娇缃戠粶閫氫俊涓嶅畨鍏�)锛屼綘搴斿惎鐢ㄨ閫夐」銆�
濡傛灉鍚敤璇ラ�夐」骞朵笖鎺堟潈琛ㄤ负pre-4.1鏍煎紡锛屾湇鍔″櫒鍚姩澶辫触骞朵笖浼氬嚭鐜伴敊璇�傚弬瑙�A.2.3鑺傦紝鈥滃鎴风涓嶆敮鎸侀壌瀹氬崗璁��銆�
褰撶敤浜庡鎴风閫夐」鏃讹紝濡傛灉鏈嶅姟鍣ㄩ渶瑕佽瀹㈡埛绔处鎴风殑鏃ф牸寮忕殑瀵嗙爜锛屽垯瀹㈡埛绔嫆缁濊繛鎺ヨ鏈嶅姟鍣ㄣ��
路 server_id
--server-id閫夐」鐨勫�笺�傜敤浜庝富澶嶅埗鏈嶅姟鍣ㄥ拰浠庡鍒舵湇鍔″櫒銆�
路 shared_memory
(鍙敤浜�Windows)鏈嶅姟鍣ㄦ槸鍚﹀厑璁稿叡浜唴瀛樿繛鎺ャ��
路 shared_memory_base_name
(鍙敤浜�Windows)璇存槑鏈嶅姟鍣ㄦ槸鍚﹀厑璁稿叡浜唴瀛樿繛鎺ワ紝骞朵负鍏变韩鍐呭瓨璁剧疆璇嗗埆绗︺�傚綋鍦ㄥ崟鍙版満鍣ㄤ笂杩愯澶氫釜MySQL瀹炰緥鏃跺緢鏈夌敤銆�
路 skip_external_locking
濡傛灉mysqld浣跨敤澶栭儴閿佸畾锛岃鍊间负OFF銆�
路 skip_networking
濡傛灉鏈嶅姟鍣ㄥ彧鍏佽鏈湴(闈�TCP/IP)杩炴帴锛岃鍊间负ON銆傚湪Unix涓紝鏈湴杩炴帴浣跨敤Unix濂楁帴瀛楁枃浠躲�傚湪Windows涓紝鏈湴杩炴帴浣跨敤鍛藉悕绠￠亾鎴栧叡浜唴瀛樸�傚湪NetWare涓紝鍙敮鎸�TCP/IP杩炴帴锛屽洜姝や笉瑕佸皢璇ュ彉閲忚缃负ON銆�
路 skip_show_database
闃叉涓嶅叿鏈�SHOW DATABASES鏉冮檺鐨勪汉浠娇鐢�SHOW DATABASES璇彞銆傚鏋滀綘鎷呭績鐢ㄦ埛鑳藉鐪嬭灞炰簬鍏跺畠鐢ㄦ埛鐨勬暟鎹簱锛岃繖鏍疯缃彲浠ユ彁楂樺畨鍏ㄦ�с�傚叾鏁堟灉鍙栧喅浜�SHOW DATABASES鏉冮檺锛氬鏋滃彉閲忓�间负ON锛屽彧鍏佽鍏锋湁SHOW DATABASES鏉冮檺鐨勪汉浠娇鐢�SHOW DATABASES 璇彞锛屽苟涓旇璇彞灏嗘樉绀烘墍鏈夋暟鎹簱鍚嶃�傚鏋滃�间负OFF锛屽厑璁告墍鏈夌敤鎴锋墽琛�SHOW DATABASES锛屼絾鍙樉绀虹敤鎴峰叿鏈�SHOW DATABASES鎴栧叾瀹冩潈闄愮殑鏁版嵁搴撶殑鍚嶇О銆�
路 slave_compressed_protocol
濡傛灉涓汇�佷粠鏈嶅姟鍣ㄥ潎鏀寔锛岀‘瀹氭槸鍚︿娇鐢ㄤ粠/涓诲帇缂╁崗璁��
路 slave_load_tmpdir
浠庢湇鍔″櫒涓哄鍒�LOAD DATA INFILE璇彞鍒涘缓涓存椂鏂囦欢鐨勭洰褰曞悕銆�
路 slave_net_timeout
鏀惧純璇绘搷浣滃墠绛夊緟涓�/浠庤繛鎺ョ殑鏇村鏁版嵁鐨勭瓑寰呯鏁般��
路 slave_skip_errors
浠庢湇鍔″櫒搴旇烦杩�(蹇借)鐨勫鍒堕敊璇��
路 slave_transaction_retries
濡傛灉鐢变簬ofInnoDB姝婚攣鎴栬秴杩�InnoDB鐨�innodb_lock_wait_timeout鎴�NDBCLUSTER鐨�TransactionDeadlockDetectionTimeout鎴�TransactionInactiveTimeout锛�澶嶅埗浠庢湇鍔″櫒SQL绾跨▼鏈兘鎵ц浜嬪姟锛屽湪鎻愮ず閿欒骞跺仠姝㈠墠瀹冭嚜鍔ㄩ噸澶�slave_transaction_retries娆°�� 榛樿鍊兼槸10銆�
路 slow_launch_time
濡傛灉鍒涘缓绾跨▼鐨勬椂闂磋秴杩囪绉掓暟锛屾湇鍔″櫒澧炲姞Slow_launch_threads鐘舵�佸彉閲忋��
路 socket
Unix骞冲彴锛氱敤浜庢湰鍦板鎴风杩炴帴鐨勫鎺ュ瓧鏂囦欢銆傞粯璁や负/var/lib/mysql/mysql.sock銆�
Windows锛氱敤浜庢湰鍦板鎴风杩炴帴鐨勫懡鍚嶇閬撳悕銆傞粯璁や负mysql銆�
路 sort_buffer_size
姣忎釜鎺掑簭绾跨▼鍒嗛厤鐨勭紦鍐插尯鐨勫ぇ灏忋�傚鍔犺鍊煎彲浠ュ姞蹇�ORDER BY鎴�GROUP BY鎿嶄綔銆傚弬瑙�A.4.4鑺傦紝鈥淢ySQL灏嗕复鏃舵枃浠跺偍瀛樺湪鍝噷鈥�銆�
路 sql_mode
褰撳墠鐨勬湇鍔″櫒SQL妯″紡锛屽彲浠ュ姩鎬佽缃�傚弬瑙�5.3.2鑺傦紝鈥淪QL鏈嶅姟鍣ㄦā寮忊��銆�
路 sql_slave_skip_counter
浠庢湇鍔″櫒搴旇烦杩囩殑鏉ヨ嚜涓绘湇鍔″櫒鐨勪簨浠舵暟銆�
路 storage_engine
璇ュ彉閲忔槸table_typeis鐨勫悓涔夎瘝銆傚湪MySQL 5.1涓�,棣栭��storage_engine銆�
路 sync_binlog
濡傛灉涓烘锛屽綋姣忎釜sync_binlog'th鍐欏叆璇ヤ簩杩涘埗鏃ュ織鍚庯紝MySQL鏈嶅姟鍣ㄥ皢瀹冪殑浜岃繘鍒舵棩蹇楀悓姝ュ埌纭洏涓�(fdatasync())銆傝娉ㄦ剰濡傛灉鍦�autocommit妯″紡锛屾瘡鎵ц涓�涓鍙ュ悜浜岃繘鍒舵棩蹇楀啓鍏ヤ竴娆★紝鍚﹀垯姣忎釜浜嬪姟鍐欏叆涓�娆°�� 榛樿鍊兼槸0锛屼笉涓庣‖鐩樺悓姝ャ�傚�间负1鏄渶瀹夊叏鐨勯�夋嫨锛屽洜涓哄穿婧冩椂锛屼綘鏈�澶氫涪鎺変簩杩涘埗鏃ュ織涓殑涓�涓鍙�/浜嬪姟锛涗絾鏄紝杩欐槸鏈�鎱㈢殑閫夋嫨(闄ら潪纭洏鏈夌數姹犲浠界紦瀛橈紝浠庤�屼娇鍚屾宸ヤ綔杈冨揩)銆�
路 sync_frm
濡傛灉璇ュ彉閲忚涓�1,褰撳垱寤洪潪涓存椂琛ㄦ椂瀹冪殑.frm鏂囦欢琚悓姝ュ埌纭洏涓�(fdatasync())锛涜繖鏍疯緝鎱絾鍑虹幇宕╂簝鏃惰緝瀹夊叏銆� 榛樿鍊间负1銆�
路 system_time_zone
鏈嶅姟鍣ㄧ郴缁熸椂鍖恒�傚綋 鏈嶅姟鍣ㄥ紑濮嬫墽琛屾椂锛屽畠缁ф壙鏈哄櫒榛樿鏃跺尯璁剧疆鍊硷紝鍙互鐢辫繍琛屾湇鍔″櫒鐨勮处鎴锋垨鍦ㄥ惎鍔ㄨ剼鏈腑杩涜淇敼銆傝鍊肩敤鏉ヨ缃�system_time_zone銆傚吀鍨嬫儏鍐电敤TZ鐜鍙橀噺鏉ユ寚瀹氭椂鍖恒�傝繕鍙互鐢�mysqld_safe鑴氭湰鐨�--timez閫夐」鏉ユ寚瀹氥��
路 table_cache
鎵�鏈夌嚎绋嬫墦寮�鐨勮〃鐨勬暟鐩�傚澶ц鍊煎彲浠ュ鍔�mysqld闇�瑕佺殑鏂囦欢鎻忚堪绗︾殑鏁伴噺銆備綘鍙互妫�鏌�Opened_tables鐘舵�佸彉閲忔潵妫�鏌ヤ綘鏄惁闇�瑕佸鍔犺〃缂撳瓨銆傚弬瑙�5.3.4鑺傦紝鈥滄湇鍔″櫒鐘舵�佸彉閲忊��銆傚鏋�Opened_tables鍊艰緝澶э紝骞朵笖澶氭鎵цFLUSH TABLES(鍙槸寮哄埗鍏抽棴鎵�鏈夎〃骞堕噸鏂�)锛屽垯搴斿鍔�table_cache鍙橀噺鐨勫�笺��
鍏充簬琛ㄧ紦瀛樼殑璇︾粏淇℃伅锛屽弬瑙�7.4.9鑺傦紝鈥淢ySQL濡備綍鎵撳紑鍜屽叧闂〃鈥�銆�
路 table_type
榛樿琛ㄧ被鍨�(瀛樺偍寮曟搸)銆傝鎯冲湪鏈嶅姟鍣ㄥ惎鍔ㄦ椂璁剧疆琛ㄧ被鍨嬶紝浣跨敤--default-table-type閫夐」銆傚弬瑙�5.3.1鑺傦紝鈥�mysqld鍛戒护琛岄�夐」鈥�銆�
路 thread_cache_size
鏈嶅姟鍣ㄥ簲缂撳瓨澶氬皯绾跨▼浠ヤ究閲嶆柊浣跨敤銆傚綋瀹㈡埛绔柇寮�杩炴帴鏃讹紝濡傛灉绾跨▼灏戜簬thread_cache_size锛屽垯瀹㈡埛绔殑绾跨▼琚斁鍏ョ紦瀛樸�傚綋璇锋眰绾跨▼鏃跺鏋滃厑璁稿彲浠ヤ粠缂撳瓨涓噸鏂板埄鐢ㄧ嚎绋嬶紝骞朵笖鍙湁褰撶紦瀛樼┖浜嗘椂鎵嶄細鍒涘缓鏂扮嚎绋嬨�傚鏋滄柊杩炴帴寰堝锛屽彲浠ュ鍔犺鍙橀噺浠ユ彁楂樻�ц兘銆�(涓�鑸儏鍐碉紝濡傛灉绾跨▼鎵ц寰楀緢濂斤紝鎬ц兘鎻愰珮涓嶆槑鏄�)銆傛鏌�Connections鍜�Threads_created鐘舵�佸彉閲忕殑宸�(璇﹁5.3.4鑺傦紝鈥滄湇鍔″櫒鐘舵�佸彉閲忊��)锛屼綘鍙互鐪嬭绾跨▼缂撳瓨鐨勬晥鐜囥��
路 thread_concurrency
鍦�Solaris涓紝mysqld鐢ㄨ鍊艰皟鐢�thr_setconcurrency()銆傝鍑芥暟浣垮簲鐢ㄧ▼搴忓悜绾跨▼绯荤粺鎻愪緵闇�瑕佸悓鏃惰繍琛岀殑鏈熸湜鐨勭嚎绋嬫暟鐩殑鎻愮ず銆�
路 thread_stack
姣忎釜绾跨▼鐨勫爢鏍堝ぇ灏忋�傜敤crash-me娴嬭瘯妫�娴嬪嚭鐨勮澶氶檺鍒跺彇鍐充簬璇ュ�笺�� 榛樿鍊艰冻澶熷ぇ锛屽彲浠ユ弧瓒虫櫘閫氭搷浣溿�傚弬瑙�7.1.4鑺傦紝鈥淢ySQL鍩哄噯濂椾欢鈥�銆�
路 time_format
璇ュ彉閲忎负浣跨敤銆�
路 time_zone
褰撳墠鐨勬椂鍖恒�傚垵浣垮�兼槸'SYSTEM'(浣跨敤system_time_zone鐨勫��)锛屼絾鍙互鐢�--default-time-zone閫夐」鍦ㄦ湇鍔″櫒鍚姩鏃舵樉寮忔寚瀹氥��
路 tmp_table_size
濡傛灉鍐呭瓨鍐呯殑涓存椂琛ㄨ秴杩囪鍊硷紝MySQL鑷姩灏嗗畠杞崲涓虹‖鐩樹笂鐨�MyISAM琛ㄣ�傚鏋滀綘鎵ц璁稿楂樼骇GROUP BY鏌ヨ骞朵笖鏈夊ぇ閲忓唴瀛橈紝鍒欏彲浠ュ鍔�tmp_table_size鐨勫�笺��
路 tmpdir
淇濆瓨涓存椂鏂囦欢鍜屼复鏃惰〃鐨勭洰褰曘�傝鍙橀噺鍙互璁剧疆涓哄嚑涓矾寰勶紝鎸�round-robin妯″紡浣跨敤銆傚湪Unix涓簲璇ョ敤鍐掑彿(鈥�:鈥�)闂撮殧寮�璺緞锛屽湪Windows銆�NetWare鍜�OS/2涓敤鍒嗗彿(鈥�锛�鈥�)銆�
鐢ㄦ潵灏嗚礋鑽峰垎鏁ｅ埌鍑犱釜鐗╃悊纭洏涓娿�傚鏋�MySQL鏈嶅姟鍣ㄤ负澶嶅埗浠庢湇鍔″櫒锛屼綘涓嶅簲灏�tmpdir璁剧疆涓烘寚鍚戝熀浜庡唴瀛樼殑鏂囦欢绯荤粺涓婄殑鐩綍鎴栧綋鏈嶅姟鍣ㄤ富鏈洪噸鍚椂澹版槑鐨勭洰褰曘�傚鍒朵粠鏈嶅姟鍣ㄩ渶瑕侀儴鍒嗕复鏃舵枃浠舵潵鍦ㄦ満鍣ㄩ噸鍚悗浠嶅彲鐢紝浠ヤ究瀹冨彲浠ュ鍒朵复鏃惰〃鎴栨墽琛�LOAD DATA INFILE鎿嶄綔銆傚鏋滄湇鍔″櫒閲嶅惎鏃朵复鏃舵枃浠跺す涓殑鏂囦欢涓㈠け浜嗭紝鍒欏鍒跺け璐ャ�備絾鏄紝濡傛灉浣犱娇鐢�MySQL 4.0.0鎴栨洿鏂扮増鏈紝浣犲彲浠ヤ娇鐢� slave_load_tmpdir鍙橀噺璁剧疆浠庢湇鍔″櫒鐨勪复鏃剁洰褰曘�傚湪杩欑鎯呭喌涓嬶紝浠庢湇鍔″櫒涓嶅啀浣跨敤甯歌tmpdir锛岃鏄庝綘鍙互灏�tmpdir璁剧疆鍒颁竴涓潪鍥哄畾浣嶇疆銆�
路 transaction_alloc_block_size
涓轰繚瀛樺皢淇濆瓨鍒颁簩杩涘埗鏃ュ織涓殑浜嬪姟鐨勬煡璇㈣�屽垎閰嶇殑鍐呭瓨鍧楃殑澶у皬(瀛楄妭)銆�
路 transaction_prealloc_size
涓�transaction_alloc_blocks鍒嗛厤鐨勫浐瀹氱紦鍐插尯鐨勫ぇ灏忥紙瀛楄妭锛夛紝鍦ㄤ袱娆℃煡璇箣闂翠笉浼氶噴鏀俱�備娇璇ュ�艰冻澶熷ぇ锛屽皢鎵�鏈夋煡璇㈠浐瀹氬埌涓�涓簨鍔′腑锛屽彲浠ラ伩鍏嶅娆�malloc()璋冪敤銆�
路 tx_isolation
榛樿浜嬪姟闅旂绾у埆銆傞粯璁ゅ�间负REPEATABLE-READ銆�
路 updatable_views_with_limit
璇ュ彉閲忔帶鍒跺鏋滄洿鏂板寘鍚�LIMIT瀛愬彞锛屾槸鍚﹀彲浠ュ湪褰撳墠琛ㄤ腑浣跨敤涓嶅寘鍚富鍏抽敭瀛楃殑瑙嗗浘杩涜鏇存柊銆�(閫氬父鐢�GUI宸ュ叿鐢熸垚杩欑被鏇存柊)銆傛洿鏂版寚UPDATE鎴�DELETE璇彞銆傝繖鍎夸富鍏抽敭瀛楁寚PRIMARY KEY锛屾垨涓�涓�UNIQUE绱㈠紩锛屽叾涓换浣曞垪涓嶅彲浠ュ寘鍚�NULL銆�
璇ュ彉閲忔湁涓や釜鍊硷細
o 1鎴�YES锛氬彧鍙戝嚭璀﹀憡(娌℃湁閿欒娑堟伅)銆傝繖鏄� 榛樿鍊笺��
o 0鎴�NO锛氱姝㈡洿鏂般��
路 version
鏈嶅姟鍣ㄧ増鏈彿銆�
路 version_bdb
BDB瀛樺偍寮曟搸鐗堟湰銆�
路 version_comment
configure鑴氭湰鏈変竴涓�--with-comment閫夐」锛屽綋鏋勫缓MySQL鏃跺彲浠ヨ繘琛屾敞閲娿�傝鍙橀噺鍖呭惈娉ㄩ噴鍊笺��
路 version_compile_machine
MySQL鏋勫缓鐨勬満鍣ㄦ垨鏋舵瀯鐨勭被鍨嬨��
路 version_compile_os
MySQL鏋勫缓鐨勬搷浣滅郴缁熺殑绫诲瀷銆�
路 wait_timeout
鏈嶅姟鍣ㄥ叧闂潪浜や簰杩炴帴涔嬪墠绛夊緟娲诲姩鐨勭鏁般��
鍦ㄧ嚎绋嬪惎鍔ㄦ椂锛屾牴鎹叏灞�wait_timeout鍊兼垨鍏ㄥ眬interactive_timeout鍊煎垵濮嬪寲浼氳瘽wait_timeout鍊硷紝鍙栧喅浜庡鎴风绫诲瀷(鐢�mysql_real_connect()鐨勮繛鎺ラ�夐」CLIENT_INTERACTIVE瀹氫箟)銆傚張瑙�interactive_timeout銆�
璁稿鏈嶅姟鍣ㄧ郴缁熷彉閲忔槸鍔ㄦ�佺殑锛屽彲浠ヤ娇鐢�SET GLOBAL鎴�SET SESSION鍦ㄨ繍琛屾椂璁剧疆銆備綘杩樺彲浠ヤ娇鐢�SELECT鑾峰緱瀹冧滑鐨勫�笺�傚弬瑙�9.4鑺傦紝鈥滅郴缁熷彉閲忊��銆�
涓嬮潰鐨勮〃鍒楀嚭浜嗘墍鏈夊姩鎬佺郴缁熷彉閲忋�傛渶鍚�1鍒楄鏄庢瘡涓彉閲忔槸鍚﹂�傜敤GLOBAL鎴�SESSION(鎴栦簩鑰�)銆�
|
鍙橀噺鍚� |
鍊肩被鍨� |
绫诲瀷 |
|
autocommit |
boolean |
SESSION |
|
big_tables |
boolean |
SESSION |
|
binlog_cache_size |
numeric |
GLOBAL |
|
bulk_insert_buffer_size |
numeric |
GLOBAL | SESSION |
|
character_set_client |
string |
GLOBAL | SESSION |
|
character_set_connection |
string |
GLOBAL | SESSION |
|
character_set_results |
string |
GLOBAL | SESSION |
|
character_set_server |
string |
GLOBAL | SESSION |
|
collation_connection |
string |
GLOBAL | SESSION |
|
collation_server |
string |
GLOBAL | SESSION |
|
completion_type |
numeric |
GLOBAL | SESSION |
|
concurrent_insert |
boolean |
GLOBAL |
|
connect_timeout |
numeric |
GLOBAL |
|
convert_character_set |
string |
GLOBAL | SESSION |
|
default_week_format |
numeric |
GLOBAL | SESSION |
|
delay_key_write |
OFF | ON | ALL |
GLOBAL |
|
delayed_insert_limit |
numeric |
GLOBAL |
|
delayed_insert_timeout |
numeric |
GLOBAL |
|
delayed_queue_size |
numeric |
GLOBAL |
|
div_precision_increment |
numeric |
GLOBAL | SESSION |
|
engine_condition_pushdown |
boolean |
GLOBAL | SESSION |
|
error_count |
numeric |
SESSION |
|
expire_logs_days |
numeric |
GLOBAL |
|
flush |
boolean |
GLOBAL |
|
flush_time |
numeric |
GLOBAL |
|
foreign_key_checks |
boolean |
SESSION |
|
ft_boolean_syntax |
numeric |
GLOBAL |
|
group_concat_max_len |
numeric |
GLOBAL | SESSION |
|
identity |
numeric |
SESSION |
|
innodb_autoextend_increment |
numeric |
GLOBAL |
|
innodb_concurrency_tickets |
numeric |
GLOBAL |
|
innodb_max_dirty_pages_pct |
numeric |
GLOBAL |
|
innodb_max_purge_lag |
numeric |
GLOBAL |
|
innodb_support_xa |
boolean |
GLOBAL | SESSION |
|
innodb_sync_spin_loops |
numeric |
GLOBAL |
|
innodb_table_locks |
boolean |
GLOBAL | SESSION |
|
innodb_thread_concurrency |
numeric GLOBAL |
|
|
innodb_thread_sleep_delay |
numeric GLOBAL |
|
|
insert_id |
boolean |
SESSION |
|
interactive_timeout |
numeric |
GLOBAL | SESSION |
|
join_buffer_size |
numeric |
GLOBAL | SESSION |
|
key_buffer_size |
numeric |
GLOBAL |
|
last_insert_id |
numeric |
SESSION |
|
local_infile |
boolean |
GLOBAL |
|
log_warnings |
numeric |
GLOBAL |
|
long_query_time |
numeric |
GLOBAL | SESSION |
|
low_priority_updates |
boolean |
GLOBAL | SESSION |
|
max_allowed_packet |
numeric |
GLOBAL | SESSION |
|
max_binlog_cache_size |
numeric |
GLOBAL |
|
max_binlog_size |
numeric |
GLOBAL |
|
max_connect_errors |
numeric |
GLOBAL |
|
max_connections |
numeric |
GLOBAL |
|
max_delayed_threads |
numeric |
GLOBAL |
|
max_error_count |
numeric |
GLOBAL | SESSION |
|
max_heap_table_size |
numeric |
GLOBAL | SESSION |
|
max_insert_delayed_threads |
numeric |
GLOBAL |
|
max_join_size |
numeric |
GLOBAL | SESSION |
|
max_relay_log_size |
numeric |
GLOBAL |
|
max_seeks_for_key |
numeric |
GLOBAL | SESSION |
|
max_sort_length |
numeric |
GLOBAL | SESSION |
|
max_tmp_tables |
numeric |
GLOBAL | SESSION |
|
max_user_connections |
numeric |
GLOBAL |
|
max_write_lock_count |
numeric |
GLOBAL |
|
myisam_stats_method |
enum |
GLOBAL | SESSION |
|
multi_read_range |
numeric |
GLOBAL | SESSION |
|
myisam_data_pointer_size |
numeric |
GLOBAL |
|
log_bin_trust_routine_creators |
boolean |
GLOBAL |
|
myisam_max_sort_file_size |
numeric |
GLOBAL | SESSION |
|
myisam_repair_threads |
numeric |
GLOBAL | SESSION |
|
myisam_sort_buffer_size |
numeric |
GLOBAL | SESSION |
|
net_buffer_length |
numeric |
GLOBAL | SESSION |
|
net_read_timeout |
numeric |
GLOBAL | SESSION |
|
net_retry_count |
numeric |
GLOBAL | SESSION |
|
net_write_timeout |
numeric |
GLOBAL | SESSION |
|
old_passwords |
numeric |
GLOBAL | SESSION |
|
optimizer_prune_level |
numeric |
GLOBAL | SESSION |
|
optimizer_search_depth |
numeric |
GLOBAL | SESSION |
|
preload_buffer_size |
numeric |
GLOBAL | SESSION |
|
query_alloc_block_size |
numeric |
GLOBAL | SESSION |
|
query_cache_limit |
numeric |
GLOBAL |
|
query_cache_size |
numeric |
GLOBAL |
|
query_cache_type |
enumeration |
GLOBAL | SESSION |
|
query_cache_wlock_invalidate |
boolean |
GLOBAL | SESSION |
|
query_prealloc_size |
numeric |
GLOBAL | SESSION |
|
range_alloc_block_size |
numeric |
GLOBAL | SESSION |
|
read_buffer_size |
numeric |
GLOBAL | SESSION |
|
read_only |
numeric |
GLOBAL |
|
read_rnd_buffer_size |
numeric |
GLOBAL | SESSION |
|
rpl_recovery_rank |
numeric |
GLOBAL |
|
safe_show_database |
boolean |
GLOBAL |
|
secure_auth |
boolean |
GLOBAL |
|
server_id |
numeric |
GLOBAL |
|
slave_compressed_protocol |
boolean |
GLOBAL |
|
slave_net_timeout |
numeric |
GLOBAL |
|
slave_transaction_retries |
numeric |
GLOBAL |
|
slow_launch_time |
numeric |
GLOBAL |
|
sort_buffer_size |
numeric |
GLOBAL | SESSION |
|
sql_auto_is_null |
boolean |
SESSION |
|
sql_big_selects |
boolean |
SESSION |
|
sql_big_tables |
boolean |
SESSION |
|
sql_buffer_result |
boolean |
SESSION |
|
sql_log_bin |
boolean |
SESSION |
|
sql_log_off |
boolean |
SESSION |
|
sql_log_update |
boolean |
SESSION |
|
sql_low_priority_updates |
boolean |
GLOBAL | SESSION |
|
sql_max_join_size |
numeric |
GLOBAL | SESSION |
|
sql_mode |
enumeration |
GLOBAL | SESSION |
|
sql_notes |
boolean |
SESSION |
|
sql_quote_show_create |
boolean |
SESSION |
|
sql_safe_updates |
boolean |
SESSION |
|
sql_select_limit |
numeric |
SESSION |
|
sql_slave_skip_counter |
numeric |
GLOBAL |
|
updatable_views_with_limit |
enumeration |
GLOBAL | SESSION |
|
sql_warnings |
boolean |
SESSION |
|
sync_binlog |
numeric |
GLOBAL |
|
sync_frm |
boolean |
GLOBAL |
|
storage_engine |
enumeration |
GLOBAL | SESSION |
|
table_cache |
numeric |
GLOBAL |
|
table_type |
enumeration |
GLOBAL | SESSION |
|
thread_cache_size |
numeric |
GLOBAL |
|
time_zone |
string |
GLOBAL | SESSION |
|
timestamp |
boolean |
SESSION |
|
tmp_table_size |
enumeration |
GLOBAL | SESSION |
|
transaction_alloc_block_size |
numeric |
GLOBAL | SESSION |
|
transaction_prealloc_size |
numeric |
GLOBAL | SESSION |
|
tx_isolation |
enumeration |
GLOBAL | SESSION |
|
unique_checks |
boolean |
SESSION |
|
wait_timeout |
numeric |
GLOBAL | SESSION |
|
warning_count |
numeric |
SESSION |
鏍囪涓�string鐨勫彉閲忛噰鐢ㄥ瓧绗︿覆鍊笺�傛爣璁颁负numeric鐨勫彉閲忛噰鐢ㄦ暟瀛楀�笺�傛爣璁颁负boolean鐨勫彉閲忓彲浠ヨ缃负0銆�1銆�ON鎴�OFF銆傛爣璁颁负enumeration鐨勫彉閲忎竴鑸儏鍐靛簲璁剧疆涓鸿鍙橀噺鐨勬煇涓彲鐢ㄥ�硷紝浣嗚繕鍙互璁剧疆涓哄搴旀湡鏈涚殑鏋氫妇鍊肩殑鏁板瓧銆傚浜�鏋氫妇绯荤粺鍙橀噺锛岀1涓灇涓惧�煎簲瀵瑰簲0銆傝繖涓嶅悓浜�ENUM鍒楋紝绗�1涓灇涓惧�煎搴�1銆�
鏈嶅姟鍣ㄧ淮鎶よ澶氭彁渚涙搷浣滅浉鍏充俊鎭殑鐘舵�佸彉閲忋�備綘鍙互閫氳繃SHOW STATUS璇彞鏌ョ湅杩欎簺鍙橀噺鍜屽畠浠殑鍊硷細
mysql> SHOW STATUS;
+-----------------------------------+------------+
| Variable_name | Value |
+-----------------------------------+------------+
| Aborted_clients | 0 |
| Aborted_connects | 0 |
| Bytes_received | 155372598 |
| Bytes_sent | 1176560426 |
鈥�
| Connections | 30023 |
| Created_tmp_disk_tables | 0 |
| Created_tmp_files | 3 |
| Created_tmp_tables | 2 |
鈥�
| Threads_created | 217 |
| Threads_running | 88 |
| Uptime | 1389872 |
+-----------------------------------+------------+
鐢�FLUSH STATUS璇彞鍙互灏嗚澶氱姸鎬佸彉閲忛噸璁句负0銆�
鐘舵�佸彉閲忔湁浠ヤ笅鍚箟銆傛病鏈夋寚绀虹増鏈殑鍙橀噺鍦�MySQL 5.1涔嬪墠宸茬粡鍑虹幇銆傚叧浜庡畠浠殑浣跨敤鍘嗗彶锛屽弬瑙�MySQL 5.0鍙傝�冩墜鍐�銆�
路 Aborted_clients
鐢变簬瀹㈡埛绔病鏈夋纭叧闂繛鎺ュ鑷村鎴风缁堟鑰屼腑鏂殑杩炴帴鏁般�傚弬瑙�A.2.10鑺傦紝鈥滈�氫俊閿欒鍜屽け鏁堣繛鎺モ��銆�
路 Aborted_connects
璇曞浘杩炴帴鍒�MySQL鏈嶅姟鍣ㄨ�屽け璐ョ殑杩炴帴鏁般�傚弬瑙�A.2.10鑺傦紝鈥滈�氫俊閿欒鍜屽け鏁堣繛鎺モ��銆�
路 Binlog_cache_disk_use
浣跨敤涓存椂浜岃繘鍒舵棩蹇楃紦瀛樹絾瓒呰繃binlog_cache_size鍊煎苟浣跨敤涓存椂鏂囦欢鏉ヤ繚瀛樹簨鍔′腑鐨勮鍙ョ殑浜嬪姟鏁伴噺銆�
路 Binlog_cache_use
浣跨敤涓存椂浜岃繘鍒舵棩蹇楃紦瀛樼殑浜嬪姟鏁伴噺銆�
路 Bytes_received
浠庢墍鏈夊鎴风鎺ユ敹鍒扮殑瀛楄妭鏁般��
路 Bytes_sent
鍙戦�佺粰鎵�鏈夊鎴风鐨勫瓧鑺傛暟銆�
路 Com_xxx
Com_xxx 璇彞璁℃暟鍙橀噺琛ㄧず姣忎釜xxx 璇彞鎵ц鐨勬鏁般�傛瘡绫昏鍙ユ湁涓�涓姸鎬佸彉閲忋�備緥濡傦紝Com_delete鍜�Com_insert鍒嗗埆缁熻DELETE 鍜�INSERT璇彞鎵ц鐨勬鏁般��
Com_stmt_xxx鐘舵�佸彉閲忎负锛�
o Com_stmt_prepare
o Com_stmt_execute
o Com_stmt_fetch
o Com_stmt_send_long_data
o Com_stmt_reset
o Com_stmt_close
杩欎簺鍙橀噺浠ｈ〃鍑嗗濂界殑璇彞鍛戒护銆傚畠浠殑鍚嶅瓧瀵瑰簲缃戠粶灞備娇鐢ㄧ殑COM_xxx 鍛戒护绯诲垪锛涙崲鍙ヨ瘽璇达細褰撳噯澶囧ソ鐨勮鍙�API璋冪敤濡�mysql_stmt_prepare()銆�mysql_stmt_鎵ц()骞舵墽琛屾椂锛屽畠浠殑鍊煎鍔犮�備絾鏄紝褰撴墽琛屼笅闈㈢殑SQL璇彞鏃讹紝Com_stmt_prepare, Com_stmt_execute鍜�Com_stmt_close涔熷鍔狅細PREPARE銆�EXECUTE鎴�DEALLOCATE PREPARE銆傛澶栵紝鏃�(浠�MySQL 4.1.3璧峰彲鐢�)璇彞璁℃暟鍙橀噺Com_prepare_sql銆�Com_execute_sql鍜�Com_dealloc_sql鐨勫�间篃闅�PREPARE銆�EXECUTE鍜�DEALLOCATE PREPARE璇彞澧炲姞銆�Com_stmt_fetch浠ｈ〃閫氳繃鍏夋爣鑾峰彇鐨勭綉缁�round-trips鐨勬�绘暟閲忋��
鎵�鏈�Com_stmt_xxx鍙橀噺灏嗗鍔狅紝鍗充娇璇彞鍙傛暟鏈煡鎴栨墽琛岃繃绋嬩腑鍑虹幇閿欒銆傛崲鍙ヨ瘽璇达紝瀹冧滑鐨勫�煎搴斿彂鍑虹殑璇锋眰鏁帮紝鑰屼笉鏄垚鍔熷畬鎴愮殑璇锋眰鏁般��
路 Connections
璇曞浘杩炴帴鍒�(涓嶇鏄惁鎴愬姛)MySQL鏈嶅姟鍣ㄧ殑杩炴帴鏁般��
路 Created_tmp_disk_tables
鏈嶅姟鍣ㄦ墽琛岃鍙ユ椂鍦ㄧ‖鐩樹笂鑷姩鍒涘缓鐨勪复鏃惰〃鐨勬暟閲忋��
路 Created_tmp_files
mysqld宸茬粡鍒涘缓鐨勪复鏃舵枃浠剁殑鏁伴噺銆�
路 Created_tmp_files
鏈嶅姟鍣ㄦ墽琛岃鍙ユ椂鑷姩鍒涘缓鐨勫唴瀛樹腑鐨勪复鏃惰〃鐨勬暟閲忋�傚鏋�Created_tmp_disk_tables杈冨ぇ锛屼綘鍙兘瑕佸鍔�tmp_table_size鍊间娇涓存椂 琛ㄥ熀浜庡唴瀛樿�屼笉鍩轰簬纭洏銆�
路 Delayed_errors
鐢�INSERT DELAYED鍐欑殑鍑虹幇閿欒鐨勮鏁�(鍙兘涓�duplicate key)銆�
路 Delayed_insert_threads
浣跨敤鐨�INSERT DELAYED澶勭悊鍣ㄧ嚎绋嬫暟銆�
路 Delayed_writes
鍐欏叆鐨�INSERT DELAYED琛屾暟銆�
路 Flush_commands
鎵ц鐨�FLUSH璇彞鏁般��
路 Handler_commit
鍐呴儴鎻愪氦璇彞鏁般��
路 Handler_discover
MySQL鏈嶅姟鍣ㄥ彲浠ラ棶NDB CLUSTER瀛樺偍寮曟搸鏄惁鐭ラ亾鏌愪竴鍚嶅瓧鐨勮〃銆傝繖琚О浣滃彂鐜般��Handler_discover璇存槑閫氳繃璇ユ柟娉曞彂鐜扮殑娆℃暟銆�
路 Handler_delete
琛屼粠琛ㄤ腑鍒犻櫎鐨勬鏁般��
路 Handler_read_first
绱㈠紩涓涓�鏉¤璇荤殑娆℃暟銆傚鏋滆緝楂橈紝瀹冨缓璁湇鍔″櫒姝ｆ墽琛屽ぇ閲忓叏绱㈠紩鎵弿锛涗緥濡傦紝SELECT col1 FROM foo锛屽亣瀹�col1鏈夌储寮曘��
路 Handler_read_key
鏍规嵁閿涓�琛岀殑璇锋眰鏁般�傚鏋滆緝楂橈紝璇存槑鏌ヨ鍜岃〃鐨勭储寮曟纭��
路 Handler_read_next
鎸夌収閿『搴忚涓嬩竴琛岀殑璇锋眰鏁般�傚鏋滀綘鐢ㄨ寖鍥寸害鏉熸垨濡傛灉鎵ц绱㈠紩鎵弿鏉ユ煡璇㈢储寮曞垪锛岃鍊煎鍔犮��
路 Handler_read_prev
鎸夌収閿『搴忚鍓嶄竴琛岀殑璇锋眰鏁般�傝璇绘柟娉曚富瑕佺敤浜庝紭鍖�ORDER BY ... DESC銆�
路 Handler_read_rnd
鏍规嵁鍥哄畾浣嶇疆璇讳竴琛岀殑璇锋眰鏁般�傚鏋滀綘姝ｆ墽琛屽ぇ閲忔煡璇㈠苟闇�瑕佸缁撴灉杩涜鎺掑簭璇ュ�艰緝楂樸�備綘鍙兘浣跨敤浜嗗ぇ閲忛渶瑕�MySQL鎵弿鏁翠釜琛ㄧ殑鏌ヨ鎴栦綘鐨勮繛鎺ユ病鏈夋纭娇鐢ㄩ敭銆�
路 Handler_read_rnd_next
鍦ㄦ暟鎹枃浠朵腑璇讳笅涓�琛岀殑璇锋眰鏁般�傚鏋滀綘姝ｈ繘琛屽ぇ閲忕殑琛ㄦ壂鎻忥紝璇ュ�艰緝楂樸�傞�氬父璇存槑浣犵殑琛ㄧ储寮曚笉姝ｇ‘鎴栧啓鍏ョ殑鏌ヨ娌℃湁鍒╃敤绱㈠紩銆�
路 Handler_rollback
鍐呴儴ROLLBACK璇彞鐨勬暟閲忋��
路 Handler_update
鍦ㄨ〃鍐呮洿鏂颁竴琛岀殑璇锋眰鏁般��
路 Handler_write
鍦ㄨ〃鍐呮彃鍏ヤ竴琛岀殑璇锋眰鏁般��
路 Innodb_buffer_pool_pages_data
鍖呭惈鏁版嵁鐨勯〉鏁�(鑴忔垨骞插噣)銆�
路 Innodb_buffer_pool_pages_dirty
褰撳墠鐨勮剰椤垫暟銆�
路 Innodb_buffer_pool_pages_flushed
瑕佹眰娓呯┖鐨勭紦鍐叉睜椤垫暟銆�
路 Innodb_buffer_pool_pages_free
绌洪〉鏁般��
路 Innodb_buffer_pool_pages_latched
鍦�InnoDB缂撳啿姹犱腑閿佸畾鐨勯〉鏁般�傝繖鏄綋鍓嶆璇绘垨鍐欐垨鐢变簬鍏跺畠鍘熷洜涓嶈兘娓呯┖鎴栧垹闄ょ殑椤垫暟銆�
路 Innodb_buffer_pool_pages_misc
蹇欑殑椤垫暟锛屽洜涓哄畠浠凡缁忚鍒嗛厤浼樺厛鐢ㄤ綔绠＄悊锛屼緥濡傝閿佸畾鎴栭�傜敤鐨勫搱甯岀储寮曘�傝鍊艰繕鍙互璁＄畻涓�Innodb_buffer_pool_pages_total - Innodb_buffer_pool_pages_free - Innodb_buffer_pool_pages_data銆�
路 Innodb_buffer_pool_pages_total
缂撳啿姹犳�诲ぇ灏忥紙椤垫暟锛夈��
路 Innodb_buffer_pool_read_ahead_rnd
InnoDB鍒濆鍖栫殑鈥�闅忔満鈥�read-aheads鏁般�傚綋鏌ヨ浠ラ殢鏈洪『搴忔壂鎻忚〃鐨勪竴澶ч儴鍒嗘椂鍙戠敓銆�
路 Innodb_buffer_pool_read_ahead_seq
InnoDB鍒濆鍖栫殑椤哄簭read-aheads鏁般�傚綋InnoDB鎵ц椤哄簭鍏ㄨ〃鎵弿鏃跺彂鐢熴��
路 Innodb_buffer_pool_read_requests
InnoDB宸茬粡瀹屾垚鐨勯�昏緫璇昏姹傛暟銆�
路 Innodb_buffer_pool_reads
涓嶈兘婊¤冻InnoDB蹇呴』鍗曢〉璇诲彇鐨勭紦鍐叉睜涓殑閫昏緫璇绘暟閲忋��
路 Innodb_buffer_pool_wait_free
涓�鑸儏鍐碉紝閫氳繃鍚庡彴鍚�InnoDB缂撳啿姹犲啓銆備絾鏄紝濡傛灉闇�瑕佽鎴栧垱寤洪〉锛屽苟涓旀病鏈夊共鍑�鐨勯〉鍙敤锛屽垯瀹冭繕闇�瑕佸厛绛夊緟椤甸潰娓呯┖銆傝璁℃暟鍣ㄥ绛夊緟瀹炰緥杩涜璁版暟銆傚鏋滃凡缁忛�傚綋璁剧疆缂撳啿姹犲ぇ灏忥紝璇ュ�煎簲灏忋��
路 Innodb_buffer_pool_write_requests
鍚�InnoDB缂撳啿姹犵殑鍐欐暟閲忋��
路 Innodb_data_fsyncs
fsync()鎿嶄綔鏁般��
路 Innodb_data_pending_fsyncs
褰撳墠鎸傝捣鐨�fsync()鎿嶄綔鏁般��
路 Innodb_data_pending_reads
褰撳墠鎸傝捣鐨勮鏁般��
路 Innodb_data_pending_writes
褰撳墠鎸傝捣鐨勫啓鏁般��
路 Innodb_data_read
鑷虫宸茬粡璇诲彇鐨勬暟鎹暟閲忥紙瀛楄妭锛夈��
路 Innodb_data_reads
鏁版嵁璇绘�绘暟閲忋��
路 Innodb_data_writes
鏁版嵁鍐欐�绘暟閲忋��
路 Innodb_data_written
鑷虫宸茬粡鍐欏叆鐨勬暟鎹噺锛堝瓧鑺傦級銆�
路 Innodb_dblwr_writes, Innodb_dblwr_pages_written
宸茬粡鎵ц鐨勫弻鍐欐搷浣滄暟閲忓拰涓烘鐩殑宸茬粡鍐欏ソ鐨勯〉鏁般�傚弬瑙�15.2.14.1鑺傦紝鈥滅鐩業/O鈥�銆�
路 Innodb_log_waits
鎴戜滑蹇呴』绛夊緟鐨勬椂闂达紝鍥犱负鏃ュ織缂撳啿鍖哄お灏忥紝鎴戜滑鍦ㄧ户缁墠蹇呴』鍏堢瓑寰呭瀹冩竻绌恒��
路 Innodb_log_write_requests
鏃ュ織鍐欒姹傛暟銆�
路 Innodb_log_writes
鍚戞棩蹇楁枃浠剁殑鐗╃悊鍐欐暟閲忋��
路 Innodb_os_log_fsyncs
鍚戞棩蹇楁枃浠跺畬鎴愮殑fsync()鍐欐暟閲忋��
路 Innodb_os_log_pending_fsyncs
鎸傝捣鐨勬棩蹇楁枃浠�fsync()鎿嶄綔鏁伴噺銆�
路 Innodb_os_log_pending_writes
鎸傝捣鐨勬棩蹇楁枃浠跺啓鎿嶄綔銆�
路 Innodb_os_log_written
鍐欏叆鏃ュ織鏂囦欢鐨勫瓧鑺傛暟銆�
路 Innodb_page_size
缂栬瘧鐨�InnoDB椤靛ぇ灏�(榛樿16KB)銆傝澶氬�肩敤椤垫潵璁版暟锛涢〉鐨勫ぇ灏忓緢瀹规槗杞崲涓哄瓧鑺傘��
路 Innodb_pages_created
鍒涘缓鐨勯〉鏁般��
路 Innodb_pages_read
璇诲彇鐨勯〉鏁般��
路 Innodb_pages_written
鍐欏叆鐨勯〉鏁般��
路 Innodb_row_lock_current_waits
褰撳墠绛夊緟鐨勫緟閿佸畾鐨勮鏁般��
路 Innodb_row_lock_time
琛岄攣瀹氳姳璐圭殑鎬绘椂闂达紝鍗曚綅姣銆�
路 Innodb_row_lock_time_avg
琛岄攣瀹氱殑骞冲潎鏃堕棿锛屽崟浣嶆绉掋��
路 Innodb_row_lock_time_max
琛岄攣瀹氱殑鏈�闀挎椂闂达紝鍗曚綅姣銆�
路 Innodb_row_lock_waits
涓�琛岄攣瀹氬繀椤荤瓑寰呯殑鏃堕棿鏁般��
路 Innodb_rows_deleted
浠�InnoDB琛ㄥ垹闄ょ殑琛屾暟銆�
路 Innodb_rows_inserted
鎻掑叆鍒�InnoDB琛ㄧ殑琛屾暟銆�
路 Innodb_rows_read
浠�InnoDB琛ㄨ鍙栫殑琛屾暟銆�
路 Innodb_rows_updated
InnoDB琛ㄥ唴鏇存柊鐨勮鏁般��
路 Key_blocks_not_flushed
閿紦瀛樺唴宸茬粡鏇存敼浣嗚繕娌℃湁娓呯┖鍒扮‖鐩樹笂鐨勯敭鐨勬暟鎹潡鏁伴噺銆�
路 Key_blocks_unused
閿紦瀛樺唴鏈娇鐢ㄧ殑鍧楁暟閲忋�備綘鍙互浣跨敤璇ュ�兼潵纭畾浣跨敤浜嗗灏戦敭缂撳瓨锛涘弬瑙�5.3.3鑺傦紝鈥滄湇鍔″櫒绯荤粺鍙橀噺鈥�涓�Key_buffer_size鐨勮璁恒��
路 Key_blocks_used
閿紦瀛樺唴浣跨敤鐨勫潡鏁伴噺銆傝鍊间负楂樻按骞崇嚎鏍囪锛岃鏄庡凡缁忓悓鏃舵渶澶氫娇鐢ㄤ簡澶氬皯鍧椼��
路 Key_read_requests
浠庣紦瀛樿閿殑鏁版嵁鍧楃殑璇锋眰鏁般��
路 Key_reads
浠庣‖鐩樿鍙栭敭鐨勬暟鎹潡鐨勬鏁般�傚鏋�Key_reads杈冨ぇ锛屽垯Key_buffer_size鍊煎彲鑳藉お灏忋�傚彲浠ョ敤Key_reads/Key_read_requests璁＄畻缂撳瓨鎹熷け鐜囥��
路 Key_write_requests
灏嗛敭鐨勬暟鎹潡鍐欏叆缂撳瓨鐨勮姹傛暟銆�
路 Key_writes
鍚戠‖鐩樺啓鍏ュ皢閿殑鏁版嵁鍧楃殑鐗╃悊鍐欐搷浣滅殑娆℃暟銆�
路 Last_query_cost
鐢ㄦ煡璇紭鍖栧櫒璁＄畻鐨勬渶鍚庣紪璇戠殑鏌ヨ鐨勬�绘垚鏈�傜敤浜庡姣斿悓涓�鏌ヨ鐨勪笉鍚屾煡璇㈡柟妗堢殑鎴愭湰銆傞粯璁ゅ��0琛ㄧず杩樻病鏈夌紪璇戞煡璇��� 榛樿鍊兼槸0銆�Last_query_cost鍏锋湁浼氳瘽鑼冨洿銆�
路 Max_used_connections
鏈嶅姟鍣ㄥ惎鍔ㄥ悗宸茬粡鍚屾椂浣跨敤鐨勮繛鎺ョ殑鏈�澶ф暟閲忋��
路 Not_flushed_delayed_rows
绛夊緟鍐欏叆INSERT DELAY闃熷垪鐨勮鏁般��
路 Open_files
鎵撳紑鐨勬枃浠剁殑鏁扮洰銆�
路 Open_streams
鎵撳紑鐨勬祦鐨勬暟閲�(涓昏鐢ㄤ簬璁板綍)銆�
路 Open_tables
褰撳墠鎵撳紑鐨勮〃鐨勬暟閲忋��
路 Opened_tables
宸茬粡鎵撳紑鐨勮〃鐨勬暟閲忋�傚鏋�Opened_tables杈冨ぇ锛�table_cache 鍊煎彲鑳藉お灏忋��
路 QCACHE_free_blocks
鏌ヨ缂撳瓨鍐呰嚜鐢卞唴瀛樺潡鐨勬暟閲忋��
路 QCACHE_free_memory
鐢ㄤ簬鏌ヨ缂撳瓨鐨勮嚜鐢卞唴瀛樼殑鏁伴噺銆�
路 QCACHE_hits
鏌ヨ缂撳瓨琚闂殑娆℃暟銆�
路 QCACHE_inserts
鍔犲叆鍒扮紦瀛樼殑鏌ヨ鏁伴噺銆�
路 QCACHE_lowmem_prunes
鐢变簬鍐呭瓨杈冨皯浠庣紦瀛樺垹闄ょ殑鏌ヨ鏁伴噺銆�
路 QCACHE_not_cached
闈炵紦瀛樻煡璇㈡暟(涓嶅彲缂撳瓨锛屾垨鐢变簬query_cache_type璁惧畾鍊兼湭缂撳瓨)銆�
路 Qcache_queries_in_cache
鐧昏鍒扮紦瀛樺唴鐨勬煡璇㈢殑鏁伴噺銆�
路 Qcache_total_blocks
鏌ヨ缂撳瓨鍐呯殑鎬诲潡鏁般��
路 Questions
宸茬粡鍙戦�佺粰鏈嶅姟鍣ㄧ殑鏌ヨ鐨勪釜鏁般��
路 Rpl_status
澶辫触瀹夊叏澶嶅埗鐘舵��(杩樻湭浣跨敤)銆�
路 Select_full_join
娌℃湁浣跨敤绱㈠紩鐨勮仈鎺ョ殑鏁伴噺銆傚鏋滆鍊间笉涓�0,浣犲簲浠旂粏妫�鏌ヨ〃鐨勭储寮曘��
路 Select_full_range_join
鍦ㄥ紩鐢ㄧ殑琛ㄤ腑浣跨敤鑼冨洿鎼滅储鐨勮仈鎺ョ殑鏁伴噺銆�
路 Select_range
鍦ㄧ涓�涓〃涓娇鐢ㄨ寖鍥寸殑鑱旀帴鐨勬暟閲忋�備竴鑸儏鍐典笉鏄叧閿棶棰橈紝鍗充娇璇ュ�肩浉褰撳ぇ銆�
路 Select_range_check
鍦ㄦ瘡涓�琛屾暟鎹悗瀵归敭鍊艰繘琛屾鏌ョ殑涓嶅甫閿�肩殑鑱旀帴鐨勬暟閲忋�傚鏋滀笉涓�0锛屼綘搴斾粩缁嗘鏌ヨ〃鐨勭储寮曘��
路 Select_scan
瀵圭涓�涓〃杩涜瀹屽叏鎵弿鐨勮仈鎺ョ殑鏁伴噺銆�
路 Slave_open_temp_tables
褰撳墠鐢变粠SQL绾跨▼鎵撳紑鐨勪复鏃惰〃鐨勬暟閲忋��
路 Slave_running
濡傛灉璇ユ湇鍔″櫒鏄繛鎺ュ埌涓绘湇鍔″櫒鐨勪粠鏈嶅姟鍣紝鍒欒鍊间负ON銆�
路 Slave_retried_transactions
鍚姩鍚庡鍒朵粠鏈嶅姟鍣�SQL绾跨▼灏濊瘯浜嬪姟鐨勬�绘鏁般��
路 Slow_launch_threads
鍒涘缓鏃堕棿瓒呰繃slow_launch_time绉掔殑绾跨▼鏁般��
路 Slow_queries
鏌ヨ鏃堕棿瓒呰繃long_query_time绉掔殑鏌ヨ鐨勪釜鏁般�傚弬瑙�5.11.4鑺傦紝鈥滄參閫熸煡璇㈡棩蹇椻��銆�
路 Sort_merge_passes
鎺掑簭绠楁硶宸茬粡鎵ц鐨勫悎骞剁殑鏁伴噺銆傚鏋滆繖涓彉閲忓�艰緝澶э紝搴旇�冭檻澧炲姞sort_buffer_size绯荤粺鍙橀噺鐨勫�笺��
路 Sort_range
鍦ㄨ寖鍥村唴鎵ц鐨勬帓搴忕殑鏁伴噺銆�
路 Sort_rows
宸茬粡鎺掑簭鐨勮鏁般��
路 Sort_scan
閫氳繃鎵弿琛ㄥ畬鎴愮殑鎺掑簭鐨勬暟閲忋��
路 Ssl_xxx
鐢ㄤ簬SSL杩炴帴鐨勫彉閲忋��
路 Table_locks_immediate
绔嬪嵆鑾峰緱鐨勮〃鐨勯攣鐨勬鏁般��
路 Table_locks_waited
涓嶈兘绔嬪嵆鑾峰緱鐨勮〃鐨勯攣鐨勬鏁般�傚鏋滆鍊艰緝楂橈紝骞朵笖鏈夋�ц兘闂锛屼綘搴旈鍏堜紭鍖栨煡璇紝鐒跺悗鎷嗗垎琛ㄦ垨浣跨敤澶嶅埗銆�
路 Threads_cached
绾跨▼缂撳瓨鍐呯殑绾跨▼鐨勬暟閲忋��
路 Threads_connected
褰撳墠鎵撳紑鐨勮繛鎺ョ殑鏁伴噺銆�
路 Threads_created
鍒涘缓鐢ㄦ潵澶勭悊杩炴帴鐨勭嚎绋嬫暟銆傚鏋�Threads_created杈冨ぇ锛屼綘鍙兘瑕佸鍔�thread_cache_size鍊笺�傜紦瀛樿闂巼鐨勮绠楁柟娉�Threads_created/Connections銆�
路 Threads_running
婵�娲荤殑锛堥潪鐫＄湢鐘舵�侊級绾跨▼鏁般��
路 Uptime
鏈嶅姟鍣ㄥ凡缁忚繍琛岀殑鏃堕棿锛堜互绉掍负鍗曚綅锛夈��
鍦�Unix鎴�Unix绫荤郴缁熶腑锛岃繍琛�mysql_fix_privilege_tables鑴氭湰鏉ユ洿鏂扮郴缁熻〃锛�
shell> mysql_fix_privilege_tables
浣犲繀椤诲湪鏈嶅姟鍣ㄨ繍琛屾椂鎵ц璇ヨ剼鏈�傚畠璇曞浘杩炴帴鏈満涓婄敤root杩愯鐨勬湇鍔″櫒銆傚鏋�root璐︽埛闇�瑕佸瘑鐮侊紝鍦ㄥ懡浠よ涓寜涓嬭堪鏂规硶缁欏嚭瀵嗙爜锛�
shell> mysql_fix_privilege_tables--password=root_password
mysql_fix_privilege_tables鑴氭湰鍙互鎵ц灏嗙郴缁熻〃杞崲涓哄綋鍓嶆牸寮忕殑浠讳綍鍔ㄤ綔銆傝繍琛屾椂浣犲彲鑳戒細鐪嬭涓�浜�Duplicate column name璀﹀憡锛涗綘鍙互蹇界暐瀹冧滑銆�
杩愯瀹岃剼鏈悗锛屽仠姝㈡湇鍔″櫒骞堕噸鍚��
鍦�Windows绯荤粺涓紝MySQL鍒嗗彂鍖呮嫭mysql_fix_privilege_tables.sql SQL鑴氭湰锛屼綘鍙互鐢�mysql瀹㈡埛绔潵杩愯銆備緥濡傦紝濡傛灉MySQL瀹夎鍒�C:\Program Files\MySQL\MySQL Server 5.1锛屽懡浠ゅ簲涓猴細
C:\> C:\Program Files\MySQL\MySQL Server 5.1\bin\mysql -u root -p mysql
mysql> SOURCE C:/Program Files/MySQL/MySQL Server 5.1/scripts/mysql_fix_privilege_tables.sql
濡傛灉瀹夎鍒板叾瀹冪洰褰曪紝鐩稿簲鍦版洿鏀硅矾寰勫悕銆�
mysql鍛戒护灏嗘彁绀鸿緭鍏�root瀵嗙爜锛涙寜鐓ф彁绀鸿緭鍏ュ瘑鐮併��
鍦�Unix涓紝褰�mysql澶勭悊mysql_fix_privilege_tables.sql script鑴氭湰涓殑璇彞鏃讹紝浣犲彲鑳戒細鐪嬭涓�浜�Duplicate column name璀﹀憡锛涗綘鍙互蹇界暐瀹冧滑銆�
杩愯瀹岃剼鏈悗锛屽仠姝㈡湇鍔″櫒骞堕噸鍚��
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1. 鍚姩鍏抽棴杩涚▼
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3. 鏈嶅姟鍣ㄥ仠姝㈡帴鏀舵柊杩炴帴
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6. 鏈嶅姟鍣ㄩ��鍑�
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路 [client]
路 loose-local-infile=1
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ERROR 1148: The used command is not allowed with this MySQL version
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Insert_priv |
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Update_priv |
Update_priv |
Update_priv |
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Delete_priv |
Delete_priv |
Delete_priv |
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Index_priv |
Index_priv |
Index_priv |
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Alter_priv |
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Alter_priv |
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Create_priv |
Create_priv |
Create_priv |
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Drop_priv |
Drop_priv |
Drop_priv |
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Grant_priv |
Grant_priv |
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Show_view_priv |
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Create_routine_priv |
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File_priv |
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Super_priv |
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Execute_priv |
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Repl_slave_priv |
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Repl_client_priv |
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瀵逛簬妫�鏌ュ瓨鍙栫殑鐢ㄩ�旓紝姣旇緝Host鍊兼槸蹇界暐澶у皬鍐欑殑銆�User銆�Password銆�Db鍜�Table_name鍊兼槸鍖哄垎澶у皬鍐欑殑銆�Column_name鍊煎湪MySQL3.22.12鎴栦互鍚庣増鏈槸蹇界暐澶у皬鍐欑殑銆�
l 鏉冮檺鍒楁寚鍑虹敱涓�涓〃琛屾巿浜堢殑鏉冮檺锛屽嵆锛屽彲瀹炴柦浠�涔堟搷浣溿�傛湇鍔″櫒缁勫悎鍚勭鐨勬巿鏉冭〃鐨勪俊鎭舰鎴愪竴涓敤鎴锋潈闄愮殑瀹屾暣鎻忚堪銆備负姝や娇鐢ㄧ殑瑙勫垯鍦�5.7.6鑺傦紝鈥滆闂帶鍒�, 闃舵2锛氳姹傛牳瀹炩��鎻忚堪銆�
鑼冨洿鍒楀寘鍚瓧绗︿覆锛屽涓嬫墍杩帮紱姣忎釜鍒楃殑榛樿鍊兼槸绌哄瓧绗︿覆锛�
|
鍒楀悕 |
绫诲瀷 |
|
Host |
CHAR(60) |
|
User |
CHAR(16) |
|
Password |
CHAR(16) |
|
Db |
CHAR(64) |
|
Table_name |
CHAR(64) |
|
Column_name |
CHAR(64) |
|
Routine_name |
CHAR(64) |
涓轰簡璁块棶妫�鏌ョ洰鐨勶紝Host鍊肩殑姣旇緝瀵瑰ぇ灏忓啓涓嶆晱鎰熴��User銆�Password銆�Db鍜�Table_name鍊煎澶у皬鍐欐晱鎰熴��Column_name鍊煎澶у皬鍐欎笉鏁忔劅銆�
鍦�user銆�db鍜�host琛ㄤ腑锛屾墍鏈夋潈闄愬垪浜庡崟鐙殑鍒楀唴锛岃澹版槑涓�ENUM('N','Y') DEFAULT 'N'銆�鎹㈠彞璇濊锛�姣忎竴涓潈闄愰兘鍙互琚鐢ㄥ拰鍚敤锛屽苟涓� 榛樿鏄鐢�銆�
鍦�tables_priv銆�columns_priv鍜�procs_priv琛ㄤ腑锛屾潈闄愬垪琚０鏄庝负SET鍒椼�傝繖浜涘垪鐨勫�煎彲浠ュ寘鍚琛ㄦ帶鍒剁殑鏉冮檺鐨勭粍鍚堬細
|
琛ㄥ悕 |
鍒楀悕 |
鍙兘鐨勮缃厓绱� |
|
tables_priv |
Table_priv |
'Select', 'Insert', 'Update', 'Delete', 'Create', 'Drop', 'Grant', 'References', 'Index', 'Alter' |
|
tables_priv |
Column_priv |
'Select', 'Insert', 'Update', 'References' |
|
columns_priv |
Column_priv |
'Select', 'Insert', 'Update', 'References' |
|
procs_priv |
Proc_priv |
'Execute', 'Alter Routine', 'Grant' |
绠�鍗曞湴璇达紝鏈嶅姟鍣ㄤ娇鐢ㄨ繖鏍风殑鎺堟潈琛細
路 user琛ㄨ寖鍥村垪鍐冲畾鏄惁鍏佽鎴栨嫆缁濆埌鏉ョ殑杩炴帴銆傚浜庡厑璁哥殑杩炴帴锛�user琛ㄦ巿浜堢殑鏉冮檺鎸囧嚭鐢ㄦ埛鐨勫叏灞�(瓒呯骇鐢ㄦ埛)鏉冮檺銆傝繖浜涙潈闄愰�傜敤浜庢湇鍔″櫒涓婄殑all鏁版嵁搴撱��
路 db琛ㄨ寖鍥村垪鍐冲畾鐢ㄦ埛鑳戒粠鍝釜涓绘満瀛樺彇鍝釜鏁版嵁搴撱�傛潈闄愬垪鍐冲畾鍏佽鍝釜鎿嶄綔銆傛巿浜堢殑鏁版嵁搴撶骇鍒殑鏉冮檺閫傜敤浜庢暟鎹簱鍜屽畠鐨勮〃銆�
路 褰撲綘鎯宠涓�涓粰瀹氱殑db琛ㄨ搴旂敤浜庤嫢骞蹭富鏈烘椂锛�db鍜�host琛ㄤ竴璧蜂娇鐢ㄣ�備緥濡傦紝濡傛灉浣犳兂瑕佷竴涓敤鎴疯兘鍦ㄤ綘鐨勭綉缁滀粠鑻ュ共涓绘満浣跨敤涓�涓暟鎹簱锛屽湪鐢ㄦ埛鐨�db琛ㄨ鐨�Host鍊艰涓虹┖鍊硷紝鐒跺悗灏嗛偅浜涗富鏈虹殑姣忎竴涓Щ鍏�host琛ㄣ�傝繖涓満鍒惰缁嗘弿杩板湪5.7.6鑺傦紝鈥滆闂帶鍒�, 闃舵2锛氳姹傛牳瀹炩��銆�
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路 tables_priv鍜�columns_priv琛ㄧ被浼间簬db琛紝浣嗘槸鏇寸簿鑷达細瀹冧滑鍦ㄨ〃鍜屽垪绾у簲鐢ㄨ�岄潪鍦ㄦ暟鎹簱绾с�傛巿浜堣〃绾у埆鐨勬潈闄愰�傜敤浜庤〃鍜屾墍鏈夊畠鐨勫垪銆傛巿浜堝垪绾у埆鐨勬潈闄愬彧閫傜敤浜庝笓鐢ㄥ垪銆�
路 procs_priv琛ㄩ�傜敤浜庝繚瀛樼殑绋嬪簭銆傛巿浜堢▼搴忕骇鍒殑鏉冮檺鍙�傜敤浜庡崟涓▼搴忋��
绠＄悊鏉冮檺(渚嬪RELOAD鎴�SHUTDOWN绛夌瓑)浠呭湪user琛ㄤ腑琚寚瀹氥�傝繖鏄洜涓虹鐞嗘�ф搷浣滄槸鏈嶅姟鍣ㄦ湰韬殑鎿嶄綔骞朵笖涓嶆槸鐗瑰畾鏁版嵁搴擄紝鍥犳娌℃湁鐞嗙敱鍦ㄥ叾浠栨巿鏉冭〃涓垪鍑鸿繖鏍风殑鏉冮檺銆備簨瀹炰笂锛屽彧闇�瑕佹煡璇�user琛ㄦ潵鍐冲畾浣犳槸鍚︽墽琛屼竴涓鐞嗘搷浣溿��
FILE鏉冮檺涔熶粎鍦�user琛ㄤ腑鎸囧畾銆傚畠涓嶆槸绠＄悊鎬ф潈闄愶紝浣嗕綘鍦ㄦ湇鍔″櫒涓绘満涓婅鎴栧啓鏂囦欢鐨勮兘鍔涗笌浣犳鍦ㄥ瓨鍙栫殑鏁版嵁搴撴棤鍏炽��
褰�mysqld鏈嶅姟鍣ㄥ惎鍔ㄦ椂锛屽皢鎺堟潈琛ㄧ殑鍐呭璇诲叆鍒板唴瀛樹腑銆備綘鍙互閫氳繃FLUSH PRIVILEGES璇彞鎴栨墽琛�mysqladmin flush-privileges鎴�mysqladmin reload鍛戒护璁╁畠閲嶆柊璇诲彇琛ㄣ�傚鎺堟潈琛ㄧ殑鏇存敼鐢熸晥鍦�5.7.7鑺傦紝鈥滄潈闄愭洿鏀逛綍鏃剁敓鏁堚��鎻忚堪銆�
褰撲綘淇敼鎺堟潈琛ㄧ殑鍐呭鏃讹紝纭繚浣犳寜浣犳兂瑕佺殑鏂瑰紡鏇存敼鏉冮檺璁剧疆鏄竴涓ソ涓绘剰銆傝妫�鏌ョ粰瀹氳处鎴风殑鏉冮檺锛屼娇鐢�SHOW GRANTS璇彞銆備緥濡傦紝瑕佹鏌�Host鍜�User鍊煎垎鍒负pc84.example.com鍜�bob鐨勮处鎴锋墍鎺堜簣鐨勬潈闄愶紝搴旈�氳繃璇彞锛�
mysql> SHOW GRANTS FOR 'bob'@'pc84.example.com';
涓�涓湁鐢ㄧ殑璇婃柇宸ュ叿鏄�mysqlaccess鑴氭湰锛岀敱Carlier Yves 鎻愪緵缁�MySQL鍒嗗彂銆備娇鐢�--help閫夐」璋冪敤mysqlaccess鏌ユ槑瀹冩�庢牱宸ヤ綔銆傛敞鎰忥細mysqlaccess浠呯敤user銆�db鍜�host琛ㄦ鏌ュ瓨鍙栥�傚畠涓嶆鏌�tables_priv銆�columns_priv鎴�procs_priv琛ㄤ腑鎸囧畾鐨勮〃銆佸垪鍜岀▼搴忕骇鏉冮檺銆�
瀵逛簬璇婃柇鏉冮檺鐩稿叧鐨勯棶棰樼殑鍏跺畠甯姪锛屽弬瑙�5.7.8鑺傦紝鈥滄嫆缁濊闂敊璇殑鍘熷洜鈥�銆傚浜庡畨鍏ㄩ棶棰樺父瑙勫缓璁紝鍙傝5.6鑺傦紝鈥滀竴鑸畨鍏ㄩ棶棰樷��銆�
璐︽埛鏉冮檺淇℃伅琚瓨鍌ㄥ湪mysql鏁版嵁搴撶殑user銆�db銆�host銆�tables_priv銆�columns_priv鍜�procs_priv琛ㄤ腑銆傚湪MySQL鍚姩鏃跺苟鍦�5.7.7鑺傦紝鈥滄潈闄愭洿鏀逛綍鏃剁敓鏁堚��鎵�璇寸殑鎯呭喌鏃讹紝鏈嶅姟鍣ㄥ皢杩欎簺鏁版嵁搴撹〃鍐呭璇诲叆鍐呭瓨銆�
GRANT鍜�REVOKE璇彞鎵�鐢ㄧ殑娑夊強鏉冮檺鐨勫悕绉版樉绀哄湪涓嬭〃锛岃繕鏈夊湪鎺堟潈琛ㄤ腑姣忎釜鏉冮檺鐨勮〃鍒楀悕绉板拰姣忎釜鏉冮檺鏈夊叧鐨勪笂涓嬫枃銆傚叧浜庢瘡涓潈闄愮殑鍚箟鐩稿叧鐨勮缁嗕俊鎭弬瑙�13.5.1.3鑺傦紝鈥淕RANT鍜孯EVOKE璇硶鈥�銆�
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鏉冮檺 |
鍒� |
涓婁笅鏂� |
|
CREATE |
Create_priv |
鏁版嵁搴撱�佽〃鎴栫储寮� |
|
DROP |
Drop_priv |
鏁版嵁搴撴垨琛� |
|
GRANT OPTION |
Grant_priv |
鏁版嵁搴撱�佽〃鎴栦繚瀛樼殑绋嬪簭 |
|
REFERENCES |
References_priv |
鏁版嵁搴撴垨琛� |
|
ALTER |
Alter_priv |
琛� |
|
DELETE |
Delete_priv |
琛� |
|
INDEX |
Index_priv |
琛� |
|
INSERT |
Insert_priv |
琛� |
|
SELECT |
Select_priv |
琛� |
|
UPDATE |
Update_priv |
琛� |
|
CREATE VIEW |
Create_view_priv |
瑙嗗浘 |
|
SHOW VIEW |
Show_view_priv |
瑙嗗浘 |
|
ALTER ROUTINE |
Alter_routine_priv |
淇濆瓨鐨勭▼搴� |
|
CREATE ROUTINE |
Create_routine_priv |
淇濆瓨鐨勭▼搴� |
|
EXECUTE |
Execute_priv |
淇濆瓨鐨勭▼搴� |
|
FILE |
File_priv |
鏈嶅姟鍣ㄤ富鏈轰笂鐨勬枃浠惰闂� |
|
CREATE TEMPORARY TABLES |
Create_tmp_table_priv |
鏈嶅姟鍣ㄧ鐞� |
|
LOCK TABLES |
Lock_tables_priv |
鏈嶅姟鍣ㄧ鐞� |
|
CREATE USER |
Create_user_priv |
鏈嶅姟鍣ㄧ鐞� |
|
PROCESS |
Process_priv |
鏈嶅姟鍣ㄧ鐞� |
|
RELOAD |
Reload_priv |
鏈嶅姟鍣ㄧ鐞� |
|
REPLICATION CLIENT |
Repl_client_priv |
鏈嶅姟鍣ㄧ鐞� |
|
REPLICATION SLAVE |
Repl_slave_priv |
鏈嶅姟鍣ㄧ鐞� |
|
SHOW DATABASES |
Show_db_priv |
鏈嶅姟鍣ㄧ鐞� |
|
SHUTDOWN |
Shutdown_priv |
鏈嶅姟鍣ㄧ鐞� |
|
SUPER |
Super_priv |
鏈嶅姟鍣ㄧ鐞� |
褰撲粠鏃╂湡鐨勬病鏈�CREATE VIEW銆�SHOW VIEW銆�CREATE ROUTINE銆�ALTER ROUTINE鍜�EXECUTE鏉冮檺鐨勭増鏈殑MySQL涓崌绾ф椂锛岃鎯充娇鐢ㄨ繖浜涙潈闄愶紝浣犲繀椤讳娇鐢�MySQL鍒嗗彂鎻愪緵鐨�mysql_fix_privilege_tables鑴氭湰鍗囩骇 鎺堟潈琛ㄣ�傚弬瑙�2.10.2鑺傦紝鈥滃崌绾ф巿鏉冭〃鈥�銆�
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閫氳繃CREATE鍜�DROP鏉冮檺锛屼綘鍙互鍒涘缓鏂版暟鎹簱鍜岃〃锛屾垨鍒犻櫎(绉绘帀)宸叉湁鏁版嵁搴撳拰琛ㄣ��濡傛灉浣犲皢mysql鏁版嵁搴撲腑鐨�DROP鏉冮檺鎺堜簣鏌愮敤鎴凤紝鐢ㄦ埛鍙互鍒犳帀MySQL璁块棶鏉冮檺淇濆瓨鐨勬暟鎹簱銆�
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SELECT璇彞鍙湁鍦ㄤ粬浠湡姝ｄ粠涓�涓〃涓绱㈣鏃舵墠闇�瑕�SELECT鏉冮檺銆備竴浜�SELECT璇彞涓嶈闂〃锛岀敋鑷虫病鏈変换浣曞埌鏈嶅姟鍣ㄤ笂鐨勬暟鎹簱閲岀殑瀛樺彇浠讳綍涓滆タ鐨勮鍙�備緥濡傦紝浣犲彲浣跨敤mysql瀹㈡埛绔綔涓轰竴涓畝鍗曠殑璁＄畻鍣ㄦ潵璇勪及鏈紩鐢ㄨ〃鐨勮〃杈惧紡锛�
mysql> SELECT 1+1;
mysql> SELECT PI()*2;
INDEX鏉冮檺鍏佽浣犲垱寤烘垨鍒犻櫎绱㈠紩銆�INDEX閫傜敤宸叉湁琛�銆�濡傛灉浣犲叿鏈夋煇涓〃鐨�CREATE鏉冮檺锛屼綘鍙互鍦�CREATE TABLE璇彞涓寘鎷储寮曞畾涔夈��
閫氳繃ALTER鏉冮檺锛屼綘鍙互浣跨敤ALTER TABLE鏉ユ洿鏀硅〃鐨勭粨鏋勫拰閲嶆柊鍛藉悕琛�銆�
闇�瑕�CREATE ROUTINE鏉冮檺鏉ュ垱寤轰繚瀛樼殑绋嬪簭锛堝嚱鏁板拰绋嬪簭锛夛紝ALTER ROUTINE鏉冮檺鏉ユ洿鏀瑰拰鍒犻櫎淇濆瓨鐨勭▼搴忥紝EXECUTE鏉ユ墽琛屼繚瀛樼殑绋嬪簭銆�
GRANT鏉冮檺鍏佽浣犳妸浣犺嚜宸辨嫢鏈夌殑閭ｄ簺鏉冮檺鎺堢粰鍏朵粬鐨勭敤鎴枫�傚彲浠ョ敤浜庢暟鎹簱銆佽〃鍜屼繚瀛樼殑绋嬪簭銆�
FILE鏉冮檺缁欎簣浣犵敤LOAD DATA INFILE鍜�SELECT ... INTO OUTFILE璇彞璇诲拰鍐欐湇鍔″櫒涓婄殑鏂囦欢锛屼换浣曡鎺堜簣FILE鏉冮檺鐨勭敤鎴烽兘鑳借鎴栧啓MySQL鏈嶅姟鍣ㄨ兘璇绘垨鍐欑殑浠讳綍鏂囦欢銆�(璇存槑鐢ㄦ埛鍙互璇讳换浣曟暟鎹簱鐩綍涓嬬殑鏂囦欢锛屽洜涓烘湇鍔″櫒鍙互璁块棶杩欎簺鏂囦欢锛�銆� FILE鏉冮檺鍏佽鐢ㄦ埛鍦�MySQL鏈嶅姟鍣ㄥ叿鏈夊啓鏉冮檺鐨勭洰褰曚笅鍒涘缓鏂版枃浠躲�備笉鑳借鐩栧凡鏈夋枃浠躲��
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|
鏉冮檺 |
鏉冮檺鎷ユ湁鑰呭厑璁告墽琛岀殑鍛戒护 |
|
RELOAD |
flush-hosts, flush-logs, flush-privileges, flush-status, flush-tables, flush-threads, refresh, reload |
|
SHUTDOWN |
shutdown |
|
PROCESS |
processlist |
|
SUPER |
kill |
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鎷ユ湁REPLICATION CLIENT鏉冮檺渚垮彲浠ヤ娇鐢�SHOW MASTER STATUS鍜�SHOW SLAVE STATUS銆�
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鎬荤殑璇存潵锛屽彧鎺堜簣鏉冮檺缁欓渶瑕佷粬浠殑閭ｄ簺鐢ㄦ埛鏄ソ涓绘剰锛屼絾鏄綘搴旇鍦ㄦ巿浜�FILE鍜岀鐞嗘潈闄愭椂璇曢獙鐗瑰畾鐨勮鍛婏細
- FILE鏉冮檺鍙互琚互鐢ㄤ簬灏嗘湇鍔″櫒涓绘満涓�MySQL鑳借鍙栫殑浠讳綍鏂囦欢璇诲叆鍒版暟鎹簱琛ㄤ腑銆傚寘鎷换浣曚汉鍙鐨勬枃浠跺拰鏈嶅姟鍣ㄦ暟鎹洰褰曚腑鐨勬枃浠躲�傚彲浠ヤ娇鐢�SELECT璁块棶鏁版嵁搴撹〃锛岀劧鍚庡皢鍏跺唴瀹逛紶杈撳埌瀹㈡埛绔笂銆�
- GRANT鏉冮檺鍏佽鐢ㄦ埛灏嗕粬浠殑鏉冮檺缁欏叾浠栫敤鎴枫�傛湁涓嶅悓鐨勬潈闄愬苟鏈�GRANT鏉冮檺鐨�2涓敤鎴峰彲浠ュ悎骞舵潈闄愩��
- ALTER鏉冮檺鍙互鐢ㄤ簬閫氳繃閲嶆柊鍛藉悕琛ㄦ潵鎺ㄧ炕鏉冮檺绯荤粺銆�
- SHUTDOWN鏉冮檺閫氳繃缁堟鏈嶅姟鍣ㄥ彲浠ヨ婊ョ敤瀹屽叏鎷掔粷涓哄叾浠栫敤鎴锋湇鍔°��
- PROCESS鏉冮檺鑳借鐢ㄦ潵瀵熺湅褰撳墠鎵ц鐨勬煡璇㈢殑鏄庢枃鏂囨湰锛屽寘鎷瀹氭垨鏀瑰彉瀵嗙爜鐨勬煡璇���
- SUPER鏉冮檺鑳界敤鏉ョ粓姝㈠叾瀹冪敤鎴锋垨鏇存敼鏈嶅姟鍣ㄧ殑鎿嶄綔鏂瑰紡銆�
- 鎺堢粰mysql鏁版嵁搴撴湰韬殑鏉冮檺鑳界敤鏉ユ敼鍙樺瘑鐮佸拰鍏朵粬璁块棶鏉冮檺淇℃伅銆傚瘑鐮佽鍔犲瘑瀛樺偍锛屾墍浠ユ伓鎰忕殑鐢ㄦ埛涓嶈兘绠�鍗曞湴璇诲彇浠栦滑浠ョ煡閬撴槑鏂囧瘑鐮併�傜劧鑰岋紝鍏锋湁user琛�Password鍒楀啓璁块棶鏉冮檺鐨勭敤鎴峰彲浠ユ洿鏀硅处鎴风殑瀵嗙爜锛屽苟鍙互鐢ㄨ璐︽埛杩炴帴MySQL鏈嶅姟鍣ㄣ��
鏈変竴浜涗簨鎯呬綘涓嶈兘鐢�MySQL鏉冮檺绯荤粺鍋氬埌锛�
- 浣犱笉鑳芥槑鏄惧湴鎸囧畾鏌愪釜缁欏畾鐨勭敤鎴峰簲璇ヨ鎷掔粷璁块棶銆傚嵆锛屼綘涓嶈兘鏄庢樉鍦板尮閰嶇敤鎴风劧鍚庢嫆缁濊繛鎺ャ��
- 浣犱笉鑳芥寚瀹氱敤鎴锋湁鏉冨垱寤虹珛鎴栧垹闄ゆ暟鎹簱涓殑琛紝浣嗕笉鑳藉垱寤烘垨鍒犻櫎鏁版嵁搴撴湰韬��
5.7.4. 涓嶮ySQL鏈嶅姟鍣ㄨ繛鎺�
褰撲綘鎯宠璁块棶MySQL鏈嶅姟鍣ㄦ椂锛�MySQL瀹㈡埛绔▼搴忎竴鑸姹備綘鎸囧畾鍙傛暟锛�
路 MySQL鏈嶅姟鍣ㄨ繍琛岀殑涓绘満鍚�
路 濮撳悕
路 瀵嗙爜
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shell> MySQL -h host_name -u user_name -pyour_pass
-h, -u鍜�-p閫夐」杩樺彲浠ラ噰鐢ㄥ舰寮�--host=host_name銆�--user=user_name鍜�--password=your_pass銆傝娉ㄦ剰鍦�-p鎴�--password=鍜屽悗闈㈢殑瀵嗙爜涔嬮棿娌℃湁绌烘牸銆�
濡傛灉浣犱娇鐢�-p鎴�--password閫夐」浣嗘病鏈夋寚瀹氬瘑鐮佸�硷紝瀹㈡埛绔▼搴忔彁绀轰綘杈撳叆瀵嗙爜銆傚綋浣犺緭鍏ュ瘑鐮佹椂骞朵笉鏄剧ず瀵嗙爜銆傝繖姣斿湪鍦ㄥ懡浠よ杈撳叆瀵嗙爜瑕佸畨鍏ㄥ緱澶氥�傜郴缁熶笂鐨勪换浣曠敤鎴峰彲浠ラ�氳繃鍛戒护ps auxww鍦ㄥ懡浠よ涓寚瀹氬瘑鐮併�傚弬瑙�5.8.6鑺傦紝鈥滀娇浣犵殑瀵嗙爜瀹夊叏鈥�銆�
濡傛灉娌℃湁鎸囧畾杩炴帴鍙傛暟锛�MySQL瀹㈡埛绔▼搴忎娇鐢ㄩ粯璁ゅ�硷細
- 榛樿涓绘満鍚嶆槸localhost銆�
- 榛樿鐢ㄦ埛鍚嶅湪Windows涓槸ODBC锛屽湪Unix涓槸浣犵殑Unix鐧诲綍鍚嶃��
路 濡傛灉娌℃湁-p锛屽垯涓嶆彁渚涘瘑鐮併��
杩欐牱, 瀵�Unix鐢ㄦ埛joe锛屼笅鍒楀懡浠ゆ槸绛変环鐨勶細
shell> MySQL -h localhost -u joe
shell> MySQL -h localhost
shell> MySQL -u joe
shell> MySQL
鍏跺畠MySQL瀹㈡埛绔▼搴忕被浼笺��
褰撹繘琛岃繛鎺ユ椂锛屼綘鍙互鎸囧畾瑕佷娇鐢ㄧ殑涓嶅悓鐨勯粯璁ゅ�硷紝杩欐牱涓嶅繀姣忔鍦ㄤ綘璋冪敤瀹㈡埛绔▼搴忔槸鍦ㄥ懡浠よ涓婅緭鍏ュ畠浠�傝繖鍙互鏈夊緢澶氭柟娉曞仛鍒帮細
- 浣犲彲浠ュ湪閫夐」鏂囦欢鐨�[client]灏忚妭閲屾寚瀹氳繛鎺ュ弬鏁般�傛枃浠剁殑鐩稿叧灏忚妭鐪嬩笂鍘诲彲鑳藉儚杩欐牱锛�
路 [client]
路 host=host_name
路 user=user_name
路 password=your_pass
鍦�4.3.2鑺傦紝鈥滀娇鐢ㄩ�夐」鏂囦欢鈥�涓缁嗚璁轰簡閫夐」鏂囦欢銆�
- 浣犲彲浠ョ敤鐜鍙橀噺鎸囧畾杩炴帴鍙傛暟銆備富鏈哄彲鐢�MYSQL_HOST鎸囧畾锛�MySQL鐢ㄦ埛鍚嶅彲鐢�USER鎸囧畾(浠呭Windows鍜�NetWare)锛屽瘑鐮佸彲鐢�MYSQL_PWD鎸囧畾锛屽敖绠¤繖涓嶅畨鍏紱鍙傝5.8.6鑺傦紝鈥滀娇浣犵殑瀵嗙爜瀹夊叏鈥�銆傚彉閲忓弬瑙�闄勫綍F锛�鐜鍙橀噺銆�
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浣犵殑韬唤鍩轰簬2涓俊鎭細
- 浣犱粠閭ｄ釜涓绘満杩炴帴
- 浣犵殑MySQL鐢ㄦ埛鍚�
韬唤妫�鏌ヤ娇鐢�3涓�user琛�(Host, User鍜�Password)鑼冨洿鍒楁墽琛屻�傛湇鍔″櫒鍙湁鍦�user琛ㄨ褰曠殑Host鍜�User鍒楀尮閰嶅鎴风涓绘満鍚嶅拰鐢ㄦ埛鍚嶅苟涓旀彁渚涗簡姝ｇ‘鐨勫瘑鐮佹椂鎵嶆帴鍙楄繛鎺ャ��
鍦�user琛�Host鍊肩殑鎸囧畾鏂规硶锛�
- Host鍊煎彲浠ユ槸涓绘満鍚嶆垨IP鍙凤紝鎴�'localhost'鎸囧嚭鏈湴涓绘満銆�
- 浣犲彲浠ュ湪Host鍒楀�间娇鐢ㄩ�氶厤绗﹀瓧绗�鈥�%鈥�鍜�鈥�_鈥�銆�
- Host鍊�'%'鍖归厤浠讳綍涓绘満鍚嶏紝绌�Host鍊肩瓑浠蜂簬'%'銆傚畠浠殑鍚箟涓�LIKE鎿嶄綔绗︾殑妯″紡鍖归厤鎿嶄綔鐩稿悓銆備緥濡傦紝'%'鐨�Host鍊间笌鎵�鏈変富鏈哄悕鍖归厤锛岃��'%.mysql.com'鍖归厤mysql.com鍩熺殑鎵�鏈変富鏈恒��
路 瀵逛簬鎸囧畾涓�IP鍙风殑Host鍊硷紝浣犲彲浠ユ寚瀹氫竴涓綉缁滄帺鐮侊紝璇存槑浣跨敤澶氬皯浣嶅湴鍧�浣嶆潵璇勬瘮缃戠粶鍙枫�備緥濡傦細
路 mysql> GRANT ALL PRIVILEGES ON db.*
路 -> -> TO david@'192.58.197.0/255.255.255.0';
鍏佽david浠庝换浣曞鎴风鐢�IP鍙�client_ip鏉ヨ繛鎺ワ紝涓嬮潰鐨勬潯浠朵负鐪燂細
client_ip & netmask = host_ip
That is, for the GRANT statement just shown:
client_ip & 255.255.255.0 = 192.58.197.0
婊¤冻璇ユ潯浠跺苟鍙互杩炴帴MySQL鏈嶅姟鍣ㄧ殑IP鍙风殑鑼冨洿涓�192.58.197.0鍒�192.58.197.255銆�
路 娉ㄩ噴锛氱綉缁滄帺鐮佸彧鐢ㄦ潵鍛婅瘔鏈嶅姟鍣ㄤ娇鐢�8銆�16銆�24鎴�32浣嶅湴鍧�锛屼緥濡傦細
路 192.0.0.0/255.0.0.0(192 A绫荤綉缁滅殑浠讳綍鍦板潃)
路 192.168.0.0/255.255.0.0(192.168 A绫荤綉缁滅殑浠讳綍鍦板潃)
路 192.168.1.0/255.255.255.0(192.168.1 C绫荤綉缁滅殑浠讳綍鍦板潃)
路 192.168.1.1(鍙湁璇�IP)
涓嬮潰鐨勭綉缁滄帺鐮�(28 浣�)鏃犳晥锛�
192.168.0.1/255.255.255.240
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瀵规暟鎹簱鏈夊叧鐨勮姹�(INSERT銆�UPDATE绛夌瓑)锛屾湇鍔″櫒棣栧厛閫氳繃鏌ユ壘user琛ㄨ鏉ユ鏌ョ敤鎴风殑鍏ㄥ眬(瓒呯骇鐢ㄦ埛)鏉冮檺銆傚鏋滆鍏佽璇锋眰鐨勬搷浣滐紝璁块棶琚巿鏉冦�傚鏋滃湪user琛ㄤ腑鍏ㄥ眬鏉冮檺涓嶅锛屾湇鍔″櫒閫氳繃妫�鏌�db鍜�host琛ㄧ‘瀹氱壒瀹氱殑鐢ㄦ埛鏁版嵁搴撴潈闄愶細
- 鏈嶅姟鍣ㄥ湪db琛ㄧ殑Host銆�Db鍜�User鍒椾笂鏌ユ壘鍖归厤銆�Host鍜�User瀵瑰簲杩炴帴鐢ㄦ埛鐨勪富鏈哄悕鍜�MySQL鐢ㄦ埛鍚嶃��Db鍒楀搴旂敤鎴锋兂瑕佽闂殑鏁版嵁搴撱�傚鏋滄病鏈�Host鍜�User鐨勮锛岃闂鎷掔粷銆�
- 濡傛灉db琛ㄤ腑鏈夊尮閰嶇殑琛岃�屼笖瀹冪殑Host鍒椾笉鏄┖鐨勶紝璇ヨ瀹氫箟鐢ㄦ埛鐨勬暟鎹簱鐗瑰畾鐨勬潈闄愩��
- 濡傛灉鍖归厤鐨�db琛ㄧ殑琛岀殑Host鍒楁槸绌虹殑锛屽畠琛ㄧずhost琛ㄥ垪涓捐鍏佽璁块棶鏁版嵁搴撶殑涓绘満銆傚湪杩欑鎯呭喌涓嬶紝鍦�host琛ㄤ腑浣滆繘涓�姝ユ煡鎵句互鍙戠幇Host鍜�Db鍒椾笂鐨勫尮閰嶃�傚鏋滄病鏈�host琛ㄨ鍖归厤锛岃闂鎷掔粷銆傚鏋滄湁鍖归厤锛岀敤鎴锋暟鎹簱鐗瑰畾鐨勬潈闄愪互鍦�db鍜�host琛ㄧ殑琛岀殑鏉冮檺锛屽嵆鍦ㄤ袱涓閮芥槸'Y'鐨勬潈闄愮殑浜ら泦(鑰屼笉鏄�骞堕泦锛�)璁＄畻銆傦紙杩欐牱浣犲彲浠ユ巿浜堝湪db琛ㄨ涓殑涓�鑸潈闄愶紝鐒跺悗鐢�host琛ㄨ鎸変富鏈轰富鏈轰负鍩虹鏈夐�夋嫨鍦伴檺鍒跺畠浠�傦級
鍦ㄧ‘瀹氫簡鐢�db鍜�host琛ㄨ鎺堜簣鐨勬暟鎹簱鐗瑰畾鐨勬潈闄愬悗锛屾湇鍔″櫒鎶婁粬浠姞鍒扮敱user琛ㄦ巿浜堢殑鍏ㄥ眬鏉冮檺涓�傚鏋滅粨鏋滃厑璁歌姹傜殑鎿嶄綔锛岃闂鎺堟潈銆傚惁鍒欙紝鏈嶅姟鍣ㄦ鏌ュ湪tables_priv鍜�columns_priv琛ㄤ腑鐨勭敤鎴风殑琛ㄥ拰鍒楁潈闄愬苟鎶婂畠浠姞鍒扮敤鎴锋潈闄愪腑銆傚熀浜庢缁撴灉鍏佽鎴栨嫆缁濊闂��
鐢ㄥ竷灏旀湳璇〃绀猴紝鍓嶉潰鍏充簬鐢ㄦ埛鏉冮檺濡備綍璁＄畻鐨勬弿杩板彲浠ヨ繖鏍锋�荤粨锛�
global privileges
OR (database privileges AND host privileges)
OR table privileges
OR column privileges
瀹冨彲鑳戒笉鏄庢樉锛屼负浠�涔堝憿锛屽鏋滃叏灞�user琛岀殑鏉冮檺鏈�鍒濆彂鐜板璇锋眰鐨勬搷浣滀笉澶燂紝鏈嶅姟鍣ㄤ互鍚庢妸杩欎簺鏉冮檺鍔犲埌鏁版嵁搴撱�佽〃骞跺垪鐨勭壒瀹氭潈闄愩�傚師鍥犳槸璇锋眰鍙兘瑕佹眰瓒呰繃涓�绉嶇被鍨嬬殑鏉冮檺銆備緥濡傦紝濡傛灉浣犳墽琛�INSERT INTO ... SELECT璇彞锛屼綘灏遍渶瑕�INSERT鍜�SELECT鏉冮檺銆備綘鐨勬潈闄愬繀椤绘槸user琛ㄨ鎺堜簣涓�涓潈闄愯��db琛ㄨ鎺堜簣鍙︿竴涓潈闄愩�傚湪杩欑鎯呭喌涓嬶紝浣犳湁蹇呰鐨勬潈闄愭墽琛岃姹傦紝浣嗘槸鏈嶅姟鍣ㄤ笉鑳借嚜宸辨妸涓や釜琛ㄥ尯鍒紑鏉ワ紱涓や釜琛屾巿浜堢殑鏉冮檺蹇呴』缁勫悎璧锋潵銆�
host琛ㄤ笉鍙�GRANT鎴�REVOKE璇彞鐨勫奖鍝嶏紝鍥犳鍦ㄥぇ澶氭暟MySQL瀹夎涓病鏈変娇鐢ㄣ�傚鏋滀綘鐩存帴淇敼瀹冿紝浣犲彲浠ョ敤浜庢煇绉嶄笓闂ㄧ洰鐨勶紝渚嬪鐢ㄦ潵缁存姢瀹夊叏鏈嶅姟鍣ㄥ垪琛ㄣ�備緥濡傦紝鍦�TcX锛�host琛ㄥ寘鍚湪鏈湴缃戠粶涓婃墍鏈夌殑鏈哄櫒鐨勮〃銆傝繖浜涜〃琚巿浜堟墍鏈夌殑鏉冮檺銆�
浣犱篃鍙互浣跨敤host琛ㄦ寚瀹�涓�瀹夊叏鐨勪富鏈恒�傚亣瀹氫綘鏈変竴鍙版満鍣�public.your.domain锛屽畠浣嶄簬浣犺涓轰笉瀹夊叏鐨勫叕鍏卞尯鍩燂紝浣犲彲浠ョ敤涓嬪垪鐨�host琛ㄦ潯鐩厑璁搁櫎浜嗛偅鍙版満鍣ㄥ鐨勭綉缁滀笂鎵�鏈変富鏈虹殑璁块棶锛�
+--------------------+----+-
| Host | Db | ...
+--------------------+----+-
| public.your.domain | % | ... (all privileges set to 'N')
| %.your.domain | % | ... (all privileges set to 'Y')
+--------------------+----+-
褰撶劧锛屼竴瀹氳娴嬭瘯鎺堟潈琛ㄤ腑鐨勮(渚嬪锛屼娇鐢�SHOW GRANTS鎴�mysqlaccess)锛岀‘淇濅綘鐨勮闂潈闄愬疄闄呮寜浣犳湡鏈涚殑鏂瑰紡琚缃��
褰�mysqld鍚姩鏃讹紝鎵�鏈夋巿鏉冭〃鐨勫唴瀹硅璇昏繘鍐呭瓨骞朵笖浠庢鏃剁敓鏁堛��
褰撴湇鍔″櫒娉ㄦ剰鍒版巿鏉冭〃琚敼鍙樹簡鏃讹紝鐜板瓨鐨勫鎴风杩炴帴鏈夊涓嬪奖鍝嶏細
- 琛ㄥ拰鍒楁潈闄愬湪瀹㈡埛绔殑涓嬩竴娆¤姹傛椂鐢熸晥銆�
- 鏁版嵁搴撴潈闄愭敼鍙樺湪涓嬩竴涓�USE db_name鍛戒护鐢熸晥銆�
路 鍏ㄥ眬鏉冮檺鐨勬敼鍙樺拰瀵嗙爜鏀瑰彉鍦ㄤ笅涓�娆″鎴风杩炴帴鏃剁敓鏁堛��
濡傛灉鐢�GRANT銆�REVOKE鎴�SET PASSWORD瀵规巿鏉冭〃杩涜淇敼锛屾湇鍔″櫒浼氭敞鎰忓埌骞剁珛鍗抽噸鏂板皢鎺堟潈琛ㄨ浇鍏ュ唴瀛樸��
濡傛灉浣犳墜鍔ㄥ湴淇敼鎺堟潈琛�(浣跨敤INSERT銆�UPDATE鎴�DELETE绛夌瓑)锛屼綘搴旇鎵цmysqladmin flush-privileges鎴�mysqladmin reload鍛婅瘔鏈嶅姟鍣ㄥ啀瑁呰浇鎺堟潈琛紝鍚﹀垯浣犵殑鏇存敼灏�涓嶄細鐢熸晥锛岄櫎闈炰綘閲嶅惎鏈嶅姟鍣ㄣ��
濡傛灉浣犵洿鎺ユ洿鏀逛簡鎺堟潈琛ㄤ絾蹇樿閲嶈浇锛岄噸鍚湇鍔″櫒鍚庝綘鐨勬洿鏀规柟鐢熸晥銆傝繖鏍峰彲鑳借浣犺糠鎯戜负浠�涔堜綘鐨勬洿鏀规病鏈変粈涔堝彉鍖栵紒
褰撲綘璇曠潃鑱旀帴MySQL鏈嶅姟鍣ㄦ椂锛屽鏋滅鍒伴棶棰橈紝涓嬮潰鍚勯」鍙互甯姪浣犵籂姝ｉ棶棰橈細
路 纭繚鏈嶅姟鍣ㄥ湪杩愯銆傚鏋滄湇鍔″櫒娌℃湁杩愯锛屽垯浣犱笉鑳借繛鎺ユ湇鍔″櫒銆傚鏋滀綘瑙嗗浘杩炴帴鏈嶅姟鍣ㄥ苟鐪嬪埌涓嬭堪娑堟伅锛屽彲鑳芥槸鏈嶅姟鍣ㄦ病鏈夎繍琛岋細
路 shell> mysql
路 ERROR 2003: Can't connect to MySQL server on 'host_name' (111)
路 shell> mysql
路 ERROR 2002: Can't connect to local MySQL server through socket
路 '/tmp/mysql.sock' (111)
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shell> netstat -ln | grep mysql
- 蹇呴』姝ｇ‘璁剧疆鎺堟潈琛紝浠ヤ究鏈嶅姟鍣ㄥ彲浠ヤ娇鐢ㄥ畠浠繘琛岃闂帶鍒躲�傚浜庢煇浜涘垎鍙戠増绫诲瀷(渚嬪Windows涓殑浜岃繘鍒跺垎鍙戠増鎴�Linux涓殑RPM鍒嗗彂鐗�),瀹夎杩囩▼鍒濆鍖栧寘鍚� 鎺堟潈琛ㄧ殑mysql鏁版嵁搴撱�傚鏋滃垎鍙戠増娌℃湁杩欐牱鍋氾紝浣犲繀椤昏繍琛�mysql_install_db鑴氭湰鏉ユ墜鍔ㄥ垵濮嬪寲鎺堟潈琛ㄣ�傝缁嗗唴瀹瑰弬瑙�2.9.2鑺傦紝鈥淯nix涓嬪畨瑁呭悗鐨勮繃绋嬧��銆�
纭畾鏄惁瑕佸垵濮嬪寲鎺堟潈琛ㄧ殑涓�涓柟娉曟槸瀵绘壘鏁版嵁鐩綍涓嬬殑mysql鐩綍锛�鏁版嵁鐩綍鍚嶉�氬父涓�data鎴�var锛屼綅浜�MySQL瀹夎鐩綍涓�锛�銆傚簲淇濊瘉MySQL鏁版嵁搴撶洰褰曟湁鏂囦欢鈥�user.MYD鈥�銆傚惁鍒欙紝鎵цmysql_install_db鑴氭湰銆傝繍琛屽苟閲嶅惎鏈嶅姟鍣ㄥ悗锛屾墽琛岃鍛戒护鏉ユ祴璇曞垵濮嬫潈闄愶細
shell> mysql -u root test
鏈嶅姟鍣ㄥ簲璇ヨ浣犳棤璇湴杩炴帴銆�
- 鍦ㄦ柊鐨勫畨瑁呬互鍚庯紝浣犲簲璇ヨ繛鎺ユ湇鍔″櫒骞朵笖璁剧疆浣犵殑鐢ㄦ埛鍙婂叾璁块棶璁稿彲锛�
路 shell> mysql -u root mysql
鏈嶅姟鍣ㄥ簲璇ヨ浣犺繛鎺ワ紝鍥犱负MySQL root鐢ㄦ埛鍒濆鏃舵病鏈夊瘑鐮併�傞偅涔熸槸瀹夊叏椋庨櫓锛屽綋浣犳鍦ㄨ缃叾浠�MySQL鐢ㄦ埛鏃讹紝涔熷簲璁惧畾root瀵嗙爜鏄竴浠堕噸瑕佺殑浜嬭銆傚叧浜庤缃垵濮嬪瘑鐮佺殑璇存槑锛屽弬瑙�2.9.3鑺傦紝鈥滀娇鍒濆MySQL璐︽埛瀹夊叏鈥�銆�
- 濡傛灉浣犲皢涓�涓幇瀛樼殑MySQL瀹夎鍗囩骇鍒拌緝鏂扮殑鐗堟湰锛岃繍琛屼簡mysql_fix_privilege_tables鑴氭湰鍚楋紵濡傛灉娌℃湁锛岃繍琛屽畠銆傚鍔犳柊鍔熻兘鍚庯紝鎺堟潈琛ㄧ殑缁撴瀯鍙兘浼氭敼鍙橈紝鍥犳鏇存柊鍚庡簲纭繚琛ㄧ殑缁撴瀯闅忎箣鏇存柊銆傜浉鍏宠鏄庡弬瑙�2.10.2鑺傦紝鈥滃崌绾ф巿鏉冭〃鈥�銆�
路 濡傛灉瀹㈡埛绔▼搴忚瘯鍥捐繛鎺ユ椂鏀跺埌浠ヤ笅閿欒淇℃伅锛岃鏄庢湇鍔″櫒闇�瑕佹柊鏍煎紡鐨勫瘑鐮侊紝鑰屽鎴风涓嶈兘鐢熸垚锛�
路 shell> mysql
路 Client does not support authentication protocol requested
路 by server; consider upgrading MySQL client
鍏充簬濡備綍澶勭悊鐨勮缁嗕俊鎭紝鍙傝5.7.9鑺傦紝鈥淢ySQL 4.1涓殑瀵嗙爜鍝堝笇澶勭悊鈥�鍜�A.2.3鑺傦紝鈥滃鎴风涓嶆敮鎸侀壌瀹氬崗璁��銆�
- 濡傛灉浣犱綔涓�root璇曡瘯杩炴帴骞朵笖寰楀埌杩欎釜閿欒锛岃繖鎰忓懗鐫�锛屼綘娌℃湁琛屽湪user琛ㄤ腑鐨�User鍒楀�间负'root'骞朵笖mysqld涓嶈兘涓轰綘鐨勫鎴风瑙ｆ瀽涓绘満鍚嶏細
- Access denied for user ''@'unknown' to database mysql
鍦ㄨ繖绉嶆儏鍐典笅锛屼綘蹇呴』鐢�--skip-grant-tables閫夐」閲嶅惎鏈嶅姟鍣ㄥ苟涓旂紪杈�鈥�/etc/hosts鈥�鎴�鈥�\windows\hosts鈥�鏂囦欢涓轰綘鐨勪富鏈哄鍔犺銆�
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路 MySQL瀵嗙爜涓庣櫥褰曞埌浣犵殑鎿嶄綔绯荤粺鐨勫瘑鐮佹病鏈夊叧绯汇�備笉闇�瑕佸皢浣犵敤鏉ョ櫥褰�Windows鎴�Unix鏈哄櫒鐨勫瘑鐮佸拰浣犵敤鏉ヨ闂鏈哄櫒涓婄殑MySQL鏈嶅姟鍣ㄧ殑瀵嗙爜鍏宠仈璧锋潵銆�
路 MySQL鐨勫姞瀵嗗瘑鐮佷娇鐢ㄨ嚜宸辩殑绠楁硶銆傝鍔犲瘑绠楁硶涓嶅悓浜�Unix鐧诲綍杩囩▼浣跨敤鐨勭畻娉曘��MySQL瀵嗙爜鍔犲瘑涓�PASSWORD()SQL鍑芥暟鐨勬柟娉曠浉鍚屻��Unix瀵嗙爜鍔犲瘑涓�ENCRYPT()SQL鍑芥暟鐨勬柟娉曠浉鍚屻��PASSWORD()鍜�ENCRYPT()鍑芥暟鐨勬弿杩板弬瑙�12.9.2鑺傦紝鈥滃姞瀵嗗嚱鏁扳��銆備粠鐗堟湰4.1 璧凤紝MySQL浣跨敤鏇村己鐨勯壌瀹氭柟娉曪紝鍚屼互鍓嶇殑鐗堟湰鐩告瘮鍙互鍦ㄨ繛鎺ヨ繃绋嬩腑鎻愪緵鏇村ソ鐨勫瘑鐮佷繚鎶ゃ�傚嵆浣�TCP/IP鍖呰鎴彇鎴�mysql鏁版嵁搴撹鎹曡幏涔熷緢瀹夊叏銆�(鍦ㄥ墠闈㈢殑鐗堟湰涓紝鍗充娇瀵嗙爜浠ュ姞瀵嗗舰寮忎繚瀛樺埌user琛ㄤ腑锛屼粛鍙互閫氳繃鍔犲瘑瀵嗙爜鍊兼潵杩炴帴MySQL鏈嶅姟鍣級銆�
褰撳畨瑁�MySQL鏃讹紝鎺堟潈琛ㄨ杞芥椂鏈変竴绯诲垪鍒濅娇璐︽埛銆傝繖浜涜处鎴风殑鍚嶇О鍜岃闂潈闄愯2.9.3鑺傦紝鈥滀娇鍒濆MySQL璐︽埛瀹夊叏鈥�锛屽叾涓繕璁ㄨ浜嗗浣曟湭杩欎簺璐︽埛璧嬩簣瀵嗙爜銆傚洜姝わ紝浣犱竴鑸簲浣跨敤GRANT鍜�REVOKE璇彞鏉ヨ缃�佷慨鏀瑰拰绉婚櫎MySQL璐︽埛銆傚弬瑙�13.5.1.3鑺傦紝鈥淕RANT鍜孯EVOKE璇硶鈥�銆�
褰撶敤鍛戒护琛屽鎴风杩炴帴MySQL鏈嶅姟鍣ㄦ椂锛屼綘搴斾负鎯宠浣跨敤鐨勮处鎴锋寚瀹氱敤鎴峰悕鍜屽瘑鐮侊細
shell> mysql --user=monty --password=guess db_name
濡傛灉浣犳兂鐢ㄨ緝鐭殑閫夐」锛屽懡浠ゅ簲涓猴細
shell> mysql -u monty -pguess db_name
-p閫夐」鍜屽悗闈㈢殑瀵嗙爜鍊间箣闂寸粷瀵逛笉鑳芥湁绌烘牸銆傚弬瑙�5.7.4鑺傦紝鈥滀笌MySQL鏈嶅姟鍣ㄨ繛鎺モ��銆�
鍓嶉潰鐨勫懡浠ゅ寘鎷懡浠よ涓殑瀵嗙爜鍊硷紝浼氬緢鍗遍櫓銆傚弬瑙�5.8.6鑺傦紝鈥滀娇浣犵殑瀵嗙爜瀹夊叏鈥�銆傝鎯抽伩鍏嶏紝鎸囧畾--password鎴�-p閫夐」鍚庨潰涓嶈窡浠讳綍瀵嗙爜鍊硷細
shell> mysql --user=monty --password db_name
shell> mysql -u monty -p db_name
鐒跺悗瀹㈡埛绔▼搴忚緭鍑烘彁绀虹骞剁瓑寰呬綘杈撳叆瀵嗙爜銆�(鍦ㄨ繖浜涚ず渚嬩腑锛�db_name骞朵笉涓哄瘑鐮侊紝鍥犱负鐢ㄧ┖鏍煎皢瀹冨悓鍓嶉潰鐨勫瘑鐮侀」闅旂寮�浜嗭級銆�
鍦ㄤ竴浜涚郴缁熶腑锛�MySQL鐢ㄦ潵鎻愮ず杈撳叆瀵嗙爜鐨勫簱璋冪敤鑷姩灏嗗瘑鐮侀檺鍒跺埌8涓瓧绗︺�傝繖鏄郴缁熷簱鐨勯棶棰橈紝鑰屼笉鏄�MySQL鐨勯棶棰樸��MySQL鏈韩骞朵笉闄愬埗瀵嗙爜鐨勯暱搴︺�傝瑙ｅ喅璇ラ棶棰橈紝灏�MySQL瀵嗙爜鏀逛负8涓瓧绗﹀拰鏇村皯瀛楃鐨勫�硷紝鎴栧皢瀵嗙爜鏀惧叆閫夐」鏂囦欢涓��
鍙互鐢ㄤ袱绉嶆柟寮忓垱寤�MySQL璐︽埛锛�
路 浣跨敤GRANT璇彞
路 鐩存帴鎿嶄綔MySQL鎺堟潈琛�
鏈�濂界殑鏂规硶鏄娇鐢�GRANT璇彞锛屽洜涓鸿繖鏍锋洿绮剧‘锛岄敊璇皯銆備粠MySQL 3.22.11璧锋彁渚涗簡GRANT锛涘叾璇硶瑙�13.5.1.3鑺傦紝鈥淕RANT鍜孯EVOKE璇硶鈥�銆�
鍒涘缓璐︽埛鐨勫叾瀹冩柟娉曟槸浣跨敤MySQL璐︽埛绠＄悊鍔熻兘鐨勭涓夋柟绋嬪簭銆�phpMyAdmin鍗虫槸涓�涓▼搴忋��
涓嬮潰鐨勭ず渚嬭鏄庡浣曚娇鐢�MySQL瀹㈡埛绔▼搴忔潵璁剧疆鏂扮敤鎴枫�傚亣瀹氭寜鐓�2.9.3鑺傦紝鈥滀娇鍒濆MySQL璐︽埛瀹夊叏鈥�鎻忚堪鐨� 榛樿鍊兼潵璁剧疆鏉冮檺銆傝繖璇存槑涓轰簡鏇存敼锛屼綘蹇呴』浠�MySQL root鐢ㄦ埛杩炴帴MySQL鏈嶅姟鍣紝骞朵笖root璐︽埛蹇呴』鏈�mysql鏁版嵁搴撶殑INSERT鏉冮檺鍜�RELOAD绠＄悊鏉冮檺銆�
棣栧厛锛屼娇鐢�MySQL绋嬪簭浠�MySQL root鐢ㄦ埛鏉ヨ繛鎺ユ湇鍔″櫒锛�
shell> MySQL --user=root MySQL
濡傛灉浣犱负root璐︽埛鎸囧畾浜嗗瘑鐮侊紝杩橀渶瑕佷负璇�MySQL鍛戒护鍜屾湰鑺備腑鐨勫叾瀹冨懡浠ゆ彁渚�--password鎴�-p閫夐」銆�
浠�root杩炴帴鍒版湇鍔″櫒涓婂悗锛屽彲浠ユ坊鍔犳柊璐︽埛銆備笅闈㈢殑璇彞浣跨敤GRANT鏉ヨ缃洓涓柊璐︽埛锛�
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost'
-> IDENTIFIED BY 'some_pass' WITH GRANT OPTION;
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%'
-> IDENTIFIED BY 'some_pass' WITH GRANT OPTION;
mysql> GRANT RELOAD,PROCESS ON *.* TO 'admin'@'localhost';
mysql> GRANT USAGE ON *.* TO 'dummy'@'localhost';
鐢�GRANT璇彞鍒涘缓鐨勮处鎴锋湁涓嬮潰鐨勫睘鎬э細
路 鍏朵腑涓や釜璐︽埛鏈夌浉鍚岀殑鐢ㄦ埛鍚�monty鍜屽瘑鐮�some_pass銆備袱涓处鎴峰潎涓鸿秴绾х敤鎴疯处鎴凤紝鍏锋湁瀹屽叏鐨勬潈闄愬彲浠ュ仛浠讳綍浜嬫儏銆備竴涓处鎴� ('monty'@'localhost')鍙敤浜庝粠鏈満杩炴帴鏃躲�傚彟涓�涓处鎴�('monty'@'%')鍙敤浜庝粠鍏跺畠涓绘満杩炴帴銆傝娉ㄦ剰monty鐨勪袱涓处鎴峰繀椤昏兘浠庝换浣曚富鏈轰互monty杩炴帴銆傛病鏈�localhost璐︽埛锛屽綋monty浠庢湰鏈鸿繛鎺ユ椂锛�mysql_install_db鍒涘缓鐨�localhost鐨勫尶鍚嶇敤鎴疯处鎴峰皢鍗犲厛銆傜粨鏋滄槸锛�monty灏嗚瑙嗕负鍖垮悕鐢ㄦ埛銆傚師鍥犳槸鍖垮悕鐢ㄦ埛璐︽埛鐨�Host鍒楀�兼瘮'monty'@'%'璐︽埛鏇村叿浣擄紝杩欐牱鍦�user琛ㄦ帓搴忛『搴忎腑鎺掑湪鍓嶉潰銆�(user琛ㄦ帓搴忕殑璁ㄨ鍙傝5.7.5鑺傦紝鈥滆闂帶鍒�, 闃舵1锛氳繛鎺ユ牳瀹炩��锛�銆�
路 涓�涓处鎴锋湁鐢ㄦ埛鍚�admin锛屾病鏈夊瘑鐮併�傝璐︽埛鍙敤浜庝粠鏈満杩炴帴銆傛巿浜堜簡RELOAD鍜�PROCESS绠＄悊鏉冮檺銆傝繖浜涙潈闄愬厑璁�admin鐢ㄦ埛鎵цmysqladmin reload銆�mysqladmin refresh鍜�mysqladmin flush-xxx鍛戒护锛屼互鍙�mysqladmin processlist銆傛湭鎺堜簣璁块棶鏁版嵁搴撶殑鏉冮檺銆備綘鍙互閫氳繃GRANT璇彞娣诲姞姝ょ被鏉冮檺銆�
路 涓�涓处鎴锋湁鐢ㄦ埛鍚�dummy锛屾病鏈夊瘑鐮併�傝璐︽埛鍙敤浜庝粠鏈満杩炴帴銆傛湭鎺堜簣鏉冮檺銆傞�氳繃GRANT璇彞涓殑USAGE鏉冮檺锛屼綘鍙互鍒涘缓璐︽埛鑰屼笉鎺堜簣浠讳綍鏉冮檺銆傚畠鍙互灏嗘墍鏈夊叏灞�鏉冮檺璁句负'N'銆傚亣瀹氫綘灏嗗湪浠ュ悗灏嗗叿浣撴潈闄愭巿浜堣璐︽埛銆�
闄や簡GRANT锛屼綘鍙互鐩存帴鐢�INSERT璇彞鍒涘缓鐩稿悓鐨勮处鎴凤紝鐒跺悗浣跨敤FLUSH PRIVILEGES鍛婅瘔鏈嶅姟鍣ㄩ噸杞芥巿鏉冭〃锛�
shell> mysql --user=root mysql
mysql> INSERT INTO user
-> VALUES('localhost','monty',PASSWORD('some_pass'),
-> 'Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y');
mysql> INSERT INTO user
-> VALUES('%','monty',PASSWORD('some_pass'),
-> 'Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y');
mysql> INSERT INTO user SET Host='localhost',User='admin',
-> Reload_priv='Y', Process_priv='Y';
mysql> INSERT INTO user (Host,User,Password)
-> VALUES('localhost','dummy','');
mysql> FLUSH PRIVILEGES;
褰撲綘鐢�INSERT鍒涘缓璐︽埛鏃朵娇鐢�FLUSH PRIVILEGES鐨勫師鍥犳槸鍛婅瘔鏈嶅姟鍣ㄩ噸璇绘巿鏉冭〃銆傚惁鍒欙紝鍙湁閲嶅惎鏈嶅姟鍣ㄥ悗鏇存敼鏂逛細琚敞鎰忓埌銆備娇鐢� GRANT锛屽垯涓嶉渶瑕佷娇鐢�FLUSH PRIVILEGES銆�
鐢�INSERT浣跨敤PASSWORD()鍑芥暟鏄负浜嗗姞瀵嗗瘑鐮併��GRANT璇彞涓轰綘鍔犲瘑瀵嗙爜锛屽洜姝や笉闇�瑕�PASSWORD()銆�
'Y'鍊煎惎鐢ㄨ处鎴锋潈闄愩�傚浜�admin璐︽埛锛岃繕鍙互浣跨敤鏇村姞鍙鐨�INSERT鎵╁厖鐨勮娉曪紙浣跨敤SET锛夈��
鍦ㄤ负dummy璐︽埛鐨�INSERT璇彞涓紝鍙湁user琛ㄤ腑鐨�Host銆�User鍜�Password鍒楄褰曚负鎸囧畾鐨勫�笺�傛病鏈変竴涓潈闄愬垪涓烘樉寮忚缃紝鍥犳MySQL灏嗗畠浠潎鎸囧畾涓� 榛樿鍊�'N'銆傝繖鏍风瓑鍚屼簬GRANT USAGE鐨勬搷浣溿��
璇锋敞鎰忚璁剧疆瓒呯骇鐢ㄦ埛璐︽埛锛屽彧闇�瑕佸垱寤轰竴涓潈闄愬垪璁剧疆涓�'Y'鐨�user琛ㄦ潯鐩��user琛ㄦ潈闄愪负鍏ㄥ眬鏉冮檺锛屽洜姝ゅ叾瀹� 鎺堟潈琛ㄤ笉鍐嶉渶瑕佹潯鐩��
涓嬮潰鐨勪緥瀛愬垱寤�3涓处鎴凤紝鍏佽瀹冧滑璁块棶涓撶敤鏁版嵁搴撱�傛瘡涓处鎴风殑鐢ㄦ埛鍚嶄负custom锛屽瘑鐮佷负obscure銆�
瑕佹兂鐢�GRANT鍒涘缓璐︽埛锛屼娇鐢ㄤ笅闈㈢殑璇彞锛�
shell> MySQL --user=root MySQL
shell> mysql --user=root mysql
mysql> GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP
-> ON bankaccount.*
-> TO 'custom'@'localhost'
-> IDENTIFIED BY 'obscure';
mysql> GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP
-> ON expenses.*
-> TO 'custom'@'whitehouse.gov'
-> IDENTIFIED BY 'obscure';
mysql> GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP
-> ON customer.*
-> TO 'custom'@'server.domain'
-> IDENTIFIED BY 'obscure';
杩�3涓处鎴峰彲浠ョ敤浜庯細
路 绗�1涓处鎴峰彲浠ヨ闂�bankaccount鏁版嵁搴擄紝浣嗗彧鑳戒粠鏈満璁块棶銆�
路 绗�2涓处鎴峰彲浠ヨ闂�expenses鏁版嵁搴擄紝浣嗗彧鑳戒粠涓绘満whitehouse.gov璁块棶銆�
路 绗�3涓处鎴峰彲浠ヨ闂�customer鏁版嵁搴擄紝浣嗗彧鑳戒粠涓绘満server.domain璁块棶銆�
瑕佹兂涓嶇敤GRANT璁剧疆custom璐︽埛锛屼娇鐢�INSERT璇彞鐩存帴淇敼 鎺堟潈琛細
shell> mysql --user=root mysql
mysql> INSERT INTO user (Host,User,Password)
-> VALUES('localhost','custom',PASSWORD('obscure'));
mysql> INSERT INTO user (Host,User,Password)
-> VALUES('whitehouse.gov','custom',PASSWORD('obscure'));
mysql> INSERT INTO user (Host,User,Password)
-> VALUES('server.domain','custom',PASSWORD('obscure'));
mysql> INSERT INTO db
-> (Host,Db,User,Select_priv,Insert_priv,
-> Update_priv,Delete_priv,Create_priv,Drop_priv)
-> VALUES('localhost','bankaccount','custom',
-> 'Y','Y','Y','Y','Y','Y');
mysql> INSERT INTO db
-> (Host,Db,User,Select_priv,Insert_priv,
-> Update_priv,Delete_priv,Create_priv,Drop_priv)
-> VALUES('whitehouse.gov','expenses','custom',
-> 'Y','Y','Y','Y','Y','Y');
mysql> INSERT INTO db
-> (Host,Db,User,Select_priv,Insert_priv,
-> Update_priv,Delete_priv,Create_priv,Drop_priv)
-> VALUES('server.domain','customer','custom',
-> 'Y','Y','Y','Y','Y','Y');
mysql> FLUSH PRIVILEGES;
鍓�3涓�INSERT璇彞鍦�user琛ㄤ腑鍔犲叆鏉＄洰锛屽厑璁哥敤鎴�custom浠庡悇绉嶄富鏈虹敤缁欏畾鐨勫瘑鐮佽繘琛岃繛鎺ワ紝浣嗕笉鎺堜簣鍏ㄥ眬鏉冮檺(鎵�鏈夋潈闄愯缃负 榛樿鍊�'N')銆傚悗闈�3涓�INSERT璇彞鍦�user琛ㄤ腑鍔犲叆鏉＄洰锛屼负custom鎺堜簣bankaccount銆�expenses鍜�customer鏁版嵁搴撴潈闄愶紝浣嗗彧鑳戒粠鍚堥�傜殑涓绘満璁块棶銆�閫氬父鑻ョ洿鎺ヤ慨鏀� 鎺堟潈琛紝鍒欏簲鍛婅瘔鏈嶅姟鍣ㄧ敤FLUSH PRIVILEGES閲嶈浇鎺堟潈琛紝浣挎潈闄愭洿鏀圭敓鏁堛��
濡傛灉浣犳兂瑕佽鏌愪釜鐢ㄦ埛浠庣粰瀹氬煙鐨勬墍鏈夋満鍣ㄨ闂�(渚嬪锛�mydomain.com)锛屼綘鍙互鍦ㄨ处鎴峰悕鐨勪富鏈洪儴鍒嗕娇鐢ㄥ惈鈥�%鈥欓�氶厤绗︾殑GRANT璇彞锛�
mysql> GRANT ...
-> ON *.*
-> TO 'myname'@'%.mydomain.com'
-> IDENTIFIED BY 'mypass';
瑕佹兂閫氳繃鐩存帴淇敼鎺堟潈琛ㄦ潵瀹炵幇锛�
mysql> INSERT INTO user (Host,User,Password,...)
-> VALUES('%.mydomain.com','myname',PASSWORD('mypass'),...);
mysql> FLUSH PRIVILEGES;
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鍦�MySQL 5.1涓�,浣犲彲浠ヤ负鍏蜂綋璐︽埛闄愬埗涓嬮潰鐨勬湇鍔″櫒璧勬簮锛�
路 璐︽埛姣忓皬鏃跺彲浠ュ彂鍑虹殑鏌ヨ鏁�
路 璐︽埛姣忓皬鏃跺彲浠ュ彂鍑虹殑鏇存柊鏁�
路 璐︽埛姣忓皬鏃跺彲浠ヨ繛鎺ユ湇鍔″櫒鐨勬鏁�
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杩樺彲浠ラ檺鍒舵瘡涓处鎴风殑鍚屾椂杩炴帴鏈嶅姟鍣ㄧ殑杩炴帴鏁般��
鏈枃涓殑璐︽埛涓�user琛ㄤ腑鐨勫崟涓褰曘�傛牴鎹�User鍜�Host鍒楀�煎敮涓�璇嗗埆姣忎釜璐︽埛銆�
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瑕佹兂鐢�GRANT璇彞璁剧疆璧勬簮闄愬埗锛屼娇WITH瀛愬彞鏉ュ懡鍚嶆瘡涓闄愬埗鐨勮祫婧愬拰鏍规嵁姣忓皬鏃惰鏁扮殑闄愬埗鍊笺�備緥濡傦紝瑕佹兂鍙互闄愬埗鏂瑰紡鍒涘缓鍙互璁块棶customer鏁版嵁搴撶殑鏂拌处鎴凤紝鎵ц璇ヨ鍙ワ細
mysql> GRANT ALL ON customer.* TO 'francis'@'localhost'
-> IDENTIFIED BY 'frank'
-> WITH MAX_QUERIES_PER_HOUR 20
-> MAX_UPDATES_PER_HOUR 10
-> MAX_CONNECTIONS_PER_HOUR 5
-> MAX_USER_CONNECTIONS 2;
闄愬埗绫诲瀷涓嶉渶瑕佸叏閮ㄥ湪WITH瀛愬彞涓懡鍚嶏紝浣嗗凡缁忓懡鍚嶇殑鍙互鎸変换浣曢『搴忋�傛瘡涓瘡灏忔椂闄愬埗鍊煎潎搴斾负鏁存暟锛屼唬琛ㄦ瘡灏忔椂鐨勮鏁般�傚鏋�GRANT璇彞娌℃湁WITH瀛愬彞锛屽垯姣忎釜闄愬埗鍊艰缃负 榛樿鍊奸浂(鍗虫病鏈夐檺鍒�)銆傚浜�MAX_USER_CONNECTIONS锛岄檺鍒朵负鏁存暟锛岃〃绀鸿处鎴蜂竴娆″彲浠ュ悓鏃惰繛鎺ョ殑鏈�澶ц繛鎺ユ暟銆傚鏋滈檺鍒惰缃负 榛樿鍊奸浂锛屽垯鏍规嵁MAX_USER_CONNECTIONS绯荤粺鍙橀噺纭畾璇ヨ处鎴峰彲浠ュ悓鏃惰繛鎺ョ殑鏁伴噺銆�
瑕佹兂璁剧疆鎴栨洿鏀瑰凡鏈夎处鎴风殑闄愬埗锛屽湪鍏ㄥ眬绾у埆浣跨敤GRANT USAGE璇彞(鍦�*.*)銆備笅闈㈢殑璇彞鍙互灏�francis鐨勬煡璇㈤檺鍒舵洿鏀逛负100锛�
mysql> GRANT USAGE ON *.* TO 'francis'@'localhost'
-> WITH MAX_QUERIES_PER_HOUR 100;
璇ヨ鍙ユ病鏈夋敼鍙樿处鎴风殑宸叉湁鏉冮檺锛屽彧淇敼浜嗘寚瀹氱殑闄愬埗鍊笺��
瑕佹兂鍙栨秷宸叉湁闄愬埗锛屽皢璇ュ�艰缃负闆躲�備緥濡傦紝瑕佹兂鍙栨秷francis姣忓皬鏃跺彲浠ヨ繛鎺ョ殑娆℃暟鐨勯檺鍒讹紝浣跨敤璇ヨ鍙ワ細
mysql> GRANT USAGE ON *.* TO 'francis'@'localhost'
-> WITH MAX_CONNECTIONS_PER_HOUR 0;
褰撹处鎴蜂娇鐢ㄨ祫婧愭椂濡傛灉鏈夐潪闆堕檺鍒讹紝鍒欏璧勬簮浣跨敤杩涜璁版暟銆�
鏈嶅姟鍣ㄨ繍琛屾椂锛屽畠缁熻姣忎釜璐︽埛浣跨敤璧勬簮鐨勬鏁般�傚鏋滆处鎴峰湪鏈�鍚庝竴涓皬鏃剁殑杩炴帴娆℃暟杈惧埌闄愬埗锛岃璐︽埛鐨勮繘涓�姝ョ殑杩炴帴琚嫆缁濄�傜被浼煎湴锛屽鏋滆处鎴疯揪鍒版煡璇㈡垨鏇存柊娆℃暟鐨勯檺鍒讹紝杩涗竴姝ョ殑鏌ヨ鎴栨洿鏂拌鎷掔粷銆傚湪杩欑鎯呭喌涓嬶紝浼氱粰鍑虹浉鍏抽敊璇秷鎭��
鏍规嵁姣忎釜璐︽埛杩涜璧勬簮璁＄畻锛岃�屼笉鏄牴鎹瘡涓鎴风銆備緥濡傦紝濡傛灉浣犵殑璐︽埛鐨勬煡璇㈤檺鍒朵负50,浣犱笉鑳介�氳繃涓や釜瀹㈡埛绔悓鏃惰繛鎺ユ湇鍔″櫒灏嗛檺鍒跺鍔犲埌100銆備袱涓繛鎺ョ殑鏌ヨ琚绠楀埌涓�璧枫��
鍙互涓烘墍鏈夎处鎴蜂粠鍏ㄥ眬閲嶈褰撳墠鐨勬瘡灏忔椂璧勬簮浣跨敤璁版暟锛屾垨鍗曠嫭閲嶈缁欏畾鐨勮处鎴凤細
路 瑕佹兂灏嗘墍鏈夎处鎴峰綋鍓嶇殑璁版暟閲嶈涓洪浂锛屽彲浠ユ墽琛�FLUSH USER_RESOURCES璇彞銆傝繕鍙互閫氳繃閲嶈浇鎺堟潈琛ㄦ潵閲嶈璁版暟(渚嬪锛屼娇鐢�FLUSH PRIVILEGES璇彞鎴�mysqladmin reload鍛戒护)銆�
路 灏嗗叿浣撹处鎴风殑闄愬埗閲嶆柊鎺堜簣浠讳綍鍊硷紝鍙互灏嗗畠璁剧疆涓洪浂銆傝鎯冲疄鐜帮紝鎸夌収鍓嶉潰鎵�杩颁娇鐢�GRANT USAGE锛屽苟灏嗛檺鍒跺�兼寚瀹氫负璇ヨ处鎴峰綋鍓嶇殑闄愬埗鍊笺��
璁℃暟鍣ㄩ噸璁句笉褰卞搷MAX_USER_CONNECTIONS闄愬埗銆�
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- 鍙互鐢�mysqladmin鍛戒护鍦ㄥ懡浠よ鎸囧畾瀵嗙爜锛�
shell> mysqladmin -u user_name -h host_name password "newpwd"
璇ュ懡浠ら噸璁惧瘑鐮佺殑璐︽埛涓�user琛ㄥ唴鍖归厤User鍒楃殑user_name鍜�Host鍒�浣犲彂璧疯繛鎺ョ殑瀹㈡埛绔殑璁板綍銆�
涓鸿处鎴疯祴浜堝瘑鐮佺殑鍙︿竴绉嶆柟娉曟槸鎵цSET PASSWORD璇彞锛�
mysql> SET PASSWORD FOR 'jeffrey'@'%' = PASSWORD('biscuit');
鍙湁root绛夊彲浠ユ洿鏂�mysql鏁版嵁搴撶殑鐢ㄦ埛鍙互鏇存敼鍏跺畠鐢ㄦ埛鐨勫瘑鐮併�傚鏋滀綘娌℃湁浠ュ尶鍚嶇敤鎴疯繛鎺ワ紝鐪佺暐FOR瀛愬彞渚垮彲浠ユ洿鏀硅嚜宸辩殑瀵嗙爜锛�
mysql> SET PASSWORD = PASSWORD('biscuit');
浣犺繕鍙互鍦ㄥ叏灞�绾у埆浣跨敤GRANT USAGE璇彞(鍦�*.*)鏉ユ寚瀹氭煇涓处鎴风殑瀵嗙爜鑰屼笉褰卞搷璐︽埛褰撳墠鐨勬潈闄愶細
mysql> GRANT USAGE ON *.* TO 'jeffrey'@'%' IDENTIFIED BY 'biscuit';
涓�鑸儏鍐典笅鏈�濂戒娇鐢ㄤ笂杩版柟娉曟潵鎸囧畾瀵嗙爜锛屼綘杩樺彲浠ョ洿鎺ヤ慨鏀�user琛細
路 瑕佹兂鍦ㄥ垱寤烘柊璐︽埛鏃跺缓绔嬪瘑鐮侊紝鍦�Password鍒楁彁渚涗竴涓�硷細
路 shell> mysql -u root mysql
路 mysql> INSERT INTO user (Host,User,Password)
路 -> VALUES('%','jeffrey',PASSWORD('biscuit'));
路 mysql> FLUSH PRIVILEGES;
路
路 瑕佹兂鏇存敼宸叉湁璐︽埛鐨勫瘑鐮侊紝浣跨敤UPDATE鏉ヨ缃�Password鍒楀�硷細
路 shell> mysql -u root mysql
路 mysql> UPDATE user SET Password = PASSWORD('bagel')
路 -> WHERE Host = '%' AND User = 'francis';
路 mysql> FLUSH PRIVILEGES;
褰撲綘浣跨敤SET PASSWORD銆�INSERT鎴�UPDATE鎸囧畾璐︽埛鐨勫瘑鐮佹椂锛屽繀椤荤敤PASSWORD()鍑芥暟瀵瑰畠杩涜鍔犲瘑銆�(鍞竴鐨勭壒渚嬫槸濡傛灉瀵嗙爜涓虹┖锛屼綘涓嶉渶瑕佷娇鐢�PASSWORD())銆傞渶瑕佷娇鐢�PASSWORD()鏄洜涓�user琛ㄤ互鍔犲瘑鏂瑰紡淇濆瓨瀵嗙爜锛岃�屼笉鏄槑鏂囥�傚鏋滀綘蹇樿浜嗭紝浣犲彲鑳戒細璞¤繖鏍疯缃瘑鐮侊細
shell> mysql -u root mysql
mysql> INSERT INTO user (Host,User,Password)
-> VALUES('%','jeffrey','biscuit');
mysql> FLUSH PRIVILEGES;
缁撴灉鏄瘑鐮�'biscuit'淇濆瓨鍒�user琛ㄥ悗娌℃湁鍔犲瘑銆傚綋jeffrey浣跨敤璇ュ瘑鐮佽繛鎺ユ湇鍔″櫒鏃讹紝鍊艰鍔犲瘑骞跺悓淇濆瓨鍦�user琛ㄤ腑鐨勮繘琛屾瘮杈冦�備絾鏄紝淇濆瓨鐨勫�间负瀛楃涓�'biscuit'锛屽洜姝ゆ瘮杈冨皢澶辫触锛屾湇鍔″櫒鎷掔粷杩炴帴锛�
shell> mysql -u jeffrey -pbiscuit test
Access denied濡傛灉浣犱娇鐢�GRANT ... IDENTIFIED BY璇彞鎴�mysqladmin password鍛戒护璁剧疆瀵嗙爜锛屽畠浠潎浼氬姞瀵嗗瘑鐮併�傚湪杩欑鎯呭喌涓嬶紝涓嶉渶瑕佷娇鐢� PASSWORD()鍑芥暟銆�
娉�閲婏細PASSWORD()鍔犲瘑涓嶅悓浜�Unix瀵嗙爜鍔犲瘑銆傚弬瑙�5.8.1鑺傦紝鈥淢ySQL鐢ㄦ埛鍚嶅拰瀵嗙爜鈥�銆�
鍦ㄧ鐞嗙骇鍒紝浣犲喅涓嶈兘灏�mysql.user琛ㄧ殑璁块棶鏉冮檺鎺堜簣浠讳綍闈炵鐞嗚处鎴枫��
褰撲綘杩愯瀹㈡埛绔▼搴忚繛鎺�MySQL鏈嶅姟鍣ㄦ椂锛屼互涓�绉嶆毚闇茬殑鍙鍏朵粬鐢ㄦ埛鍙戠幇鐨勬柟寮忔寚瀹氫綘鐨勫瘑鐮佹槸涓嶅Ε褰撶殑銆傚綋浣犺繍琛屽鎴风绋嬪簭鏃讹紝浣犲彲浠ヤ娇鐢ㄤ笅鍒楁柟娉曟寚瀹氫綘鐨勫瘑鐮侊紝杩樻湁姣忎釜鏂规硶鐨勯闄╄瘎浼帮細
路 浣跨敤涓�涓湪鍛戒护琛屼笂-pyour_pass鎴�--password=your_pass鐨勯�夐」銆備緥濡傦細
路 shell> mysql -u francis -pfrank db_name
杩欏緢鏂逛究浣嗘槸涓嶅畨鍏紝鍥犱负浣犵殑瀵嗙爜瀵圭郴缁熺姸鎬佺▼搴�(渚嬪ps)鍙樺緱鍙锛屽畠鍙互琚叾浠栫殑鐢ㄦ埛璋冪敤鏉ユ樉绀哄懡浠よ銆備竴鑸�MySQL瀹㈡埛鍦ㄤ粬浠殑鍒濆鍖栭『搴忔湡闂寸敤闆惰鐩栧懡浠よ鍙傛暟锛屼絾鏄粛鐒舵湁涓�涓煭鏆傞棿闅旀椂闂村唴鍙傛暟鍊煎彲瑙佺殑銆�
路 浣跨敤涓�涓�-p鎴�--password閫夐」(娌℃湁鎸囧畾瀵嗙爜)銆傚湪杩欑鎯呭喌涓嬶紝瀹㈡埛绔▼搴忚姹傛潵鑷粓绔殑瀵嗙爜锛�
路 shell> mysql -u francis -p db_name
路 Enter password: ********
鈥�*鈥�瀛楃鎸囩ず杈撳叆瀵嗙爜鐨勫湴鏂广�傝緭鍏ュ瘑鐮佹椂瀵嗙爜鐪嬩笉瑙併��
鍥犱负瀹冨鍏朵粬鐢ㄦ埛涓嶅彲瑙侊紝涓庡湪鍛戒护琛屼笂鎸囧畾瀹冪浉姣旓紝杩欐牱杩涘叆浣犵殑瀵嗙爜鏇村畨鍏ㄣ�傜劧鑰岋紝杩欎釜杈撳叆涓�涓瘑鐮佺殑鏂规硶浠呬粎涓轰綘浜や簰寮忚繍琛岀▼搴忔槸鍚堥�傜殑銆傚鏋滀綘鎯宠浠庨潪浜や簰寮忚繍琛岀殑涓�涓剼鏈皟鐢ㄤ竴涓鎴风锛屽氨娌℃湁浠庣粓绔緭鍏ュ叆瀵嗙爜鐨勬満浼氥�傚湪鏌愪簺绯荤粺涓紝浣犵敋鑷充細鍙戠幇鑴氭湰鐨勭涓�琛岃锛堥敊璇湴锛夎骞惰В閲婁负浣犵殑瀵嗙爜锛�
路 鍦ㄤ竴涓厤缃枃浠朵腑瀛樺偍浣犵殑瀵嗙爜銆備緥濡傦紝鍦�Unix涓紝浣犲彲鍦ㄤ富鐩綍鐨�鈥�.my.cnf鈥�鏂囦欢涓殑[client]鑺傚垪鍑轰綘鐨勫瘑鐮侊細
路 [client]
路 password=your_pass
濡傛灉浣犲湪鈥�.my.cnf鈥�閲岄潰瀛樺偍瀵嗙爜锛岄櫎浜嗕綘鏈汉鍏跺畠浜轰笉鑳借闂鏂囦欢銆備繚璇佹枃浠剁殑璁块棶妯″紡鏄�400鎴�600銆�渚嬪锛�
shell> chmod 600 .my.cnf
鍏充簬閫夐」鏂囦欢鐨勮缁嗚璁哄弬瑙�4.3.2鑺傦紝鈥滀娇鐢ㄩ�夐」鏂囦欢鈥�銆�
路 浣犲彲鍦�MYSQL_PWD鐜鍙橀噺涓瓨鍌ㄥ瘑鐮併�備絾鏄繖绉嶆寚瀹�MySQL瀵嗙爜鐨勬柟娉曟槸鏋佷笉瀹夊叏鐨勶紝涓嶅簲璇ヤ娇鐢ㄣ��ps鐨勬煇浜涚増鏈寘鎷樉绀鸿繍琛岃繘绋嬬殑鐜鐨勯�夐」锛涘鏋滀綘璁惧畾MYSQL_PWD锛屼綘鐨勫瘑鐮佸皢琚繍琛�ps鐨勬墍鏈変汉鐪嬭锛岀敋鑷冲湪娌℃湁杩欐牱涓�涓増鏈殑ps鐨勭郴缁熶笂锛屾病鏈夊叾瀹冩柟娉曡瀵熷埌杩涚▼鐜鐨勫亣璁炬槸涓嶆槑鏅虹殑銆傚弬瑙�闄勫綍F锛�鐜鍙橀噺銆�
鎬讳箣锛屾渶瀹夊叏鐨勬柟娉曟槸璁╁鎴风绋嬪簭鎻愮ず杈撳叆瀵嗙爜鎴栧湪閫傚綋淇濇姢鐨勯�夐」鏂囦欢涓寚瀹氬瘑鐮併��
MySQL鐨勬爣鍑嗛厤缃�惧悜浜庡敖鍙兘蹇紝鍥犳榛樿鎯呭喌涓嶄娇鐢ㄥ姞瀵嗚繛鎺ャ�備娇鐢ㄨ鍗忚浼氫娇瀹㈡埛绔�/鏈嶅姟鍣ㄥ崗璁參寰楀銆傚鏁版嵁杩涜鍔犲瘑闈炲父鑰�CPU锛岄渶瑕佽绠楁満澶氬仛璁稿宸ヤ綔锛屼細寤惰繜MySQL鐨勫叾瀹冧换鍔°�傚浜庨渶瑕侀�氳繃鍔犲瘑杩炴帴鎻愪緵瀹夊叏鐨勫簲鐢ㄧ▼搴忥紝鍙互淇濊瘉棰濆鐨勮绠椼��
MySQL鍏佽鍦ㄨ繛鎺ュ墠鍚敤鍔犲瘑銆備綘鍙互鏍规嵁鍏蜂綋搴旂敤绋嬪簭鐨勯渶姹傞�夋嫨鏅�氭湭鍔犲瘑杩炴帴鎴栧畨鍏ㄥ姞瀵�SSL杩炴帴銆�
5.8.7.1. SSL鍩烘湰姒傚康
榛樿鎯呭喌涓嬶紝MySQL鍦ㄥ鎴风鍜屾湇鍔″櫒涔嬮棿浣跨敤鏈姞瀵嗙殑杩炴帴銆傝繖璇存槑鍙互璁块棶缃戠粶鐨勯儴鍒嗕汉鍙互鐪嬪埌浣犵殑閫氫俊锛屽苟鐪嬪埌鍙戦�佸拰鎺ユ敹鐨勬暟鎹�備粬浠敋鑷冲彲浠ユ洿鏀瑰湪瀹㈡埛绔拰鏈嶅姟鍣ㄤ箣闂翠紶閫掔殑鏁版嵁銆傝鎯虫彁楂樺畨鍏ㄦ�э紝褰撹皟鐢ㄥ鎴风绋嬪簭鏃讹紝浣犲彲浠ラ�氳繃--compress閫夐」鍘嬬缉瀹㈡埛绔�/鏈嶅姟鍣ㄤ箣闂寸殑閫氫俊銆備絾鏄紝杩欐牱骞朵笉鑳介樆鎸′綇椤藉浐鐨勬敾鍑昏�呫��
褰撲綘闇�瑕佷互瀹夊叏鏂瑰紡鍦ㄧ綉缁滀腑浼犻�掍俊鎭椂锛屾湭鍔犲瘑鐨勮繛鎺ユ槸涓嶅彲鎺ュ彈鐨勩�傚姞瀵嗘槸浣夸换浣曟暟鎹笉鍙鐨勬柟娉曘�備簨瀹炰笂锛屼粖澶╃殑璁稿鎯緥闇�瑕佸姞瀵嗙畻娉曟彁渚涙洿鍔犲畨鍏ㄧ殑瑕佺礌銆傚畠浠簲鑳芥姷鎶楀悇绉嶅凡鐭ョ殑鏀诲嚮锛屼緥濡傛洿鏀瑰姞瀵嗘秷鎭殑椤哄簭鎴栦袱娆￠噸鏀炬暟鎹��
SSL鏄竴绉嶄娇鐢ㄤ笉鍚岀殑鍔犲瘑绠楁硶纭繚浠庡叕鐢ㄧ綉鎺ユ敹鍒扮殑鏁版嵁鏄彲淇＄殑鍗忚銆傚畠鍏锋湁妫�娴嬫暟鎹洿鏀广�佷涪澶辨垨閲嶆斁鐨勬満鍒躲��SSL杩樺寘鎷娇鐢� X509鏍囧噯鎻愪緵韬唤璁よ瘉鐨勭畻娉曘��
浣跨敤X509锛屽彲浠ヨ瘑鍒�Internet涓婄殑鏌愪簺浜恒�傞�氬父鐢ㄤ簬鐢靛瓙鍟嗗姟搴旂敤绋嬪簭涓�傛寜鐓у熀鏈蹇碉紝搴旀湁鏌愮绉颁箣涓衡��璁よ瘉鏈烘瀯鈥�(鎴�CA)鐨勬満鏋勶紝鍙互鍚戣姹傝�呭垎鍙戠數瀛愯瘉涔︺�傝瘉涔︿緷璧栭潪瀵圭О鍔犲瘑绠楁硶锛屾湁涓や釜鍔犲瘑瀵嗛挜(鍏叡瀵嗛挜鍜岀浜哄瘑閽�)銆傝璇佹寔鏈夎�呭彲浠ュ悜鍏跺畠鏂瑰嚭绀鸿瘉涔︽潵璇佹槑韬唤銆傝瘉涔﹀寘鎷寔鏈夎�呯殑鍏叡瀵嗛挜銆傚彧鑳戒娇鐢ㄥ搴旂殑绉佷汉瀵嗛挜瀵瑰惈璇ュ叕鍏卞瘑閽ョ殑鍔犲瘑鏁版嵁杩涜瑙ｅ瘑锛岀浜哄瘑閽ョ敱璇佷功鎸佹湁鑰呮嫢鏈夈��
濡傛灉浣犻渶瑕佸叧浜�SSL銆�X509銆佹垨鍔犲瘑鐨勮缁嗕俊鎭紝浣跨敤Internet鎼滅储寮曟搸鏉ユ悳绱綘鎰熷叴瓒ｇ殑鍏抽敭瀛椼��
5.8.7.2. 闇�姹�(OpenSSL)
瑕佹兂鍦�MySQL鏈嶅姟鍣ㄥ拰瀹㈡埛绔▼搴忎箣闂翠娇鐢�SSL杩炴帴锛岀郴缁熷繀椤昏兘澶熸敮鎸�OpenSSL銆傚鏋滅敤鏀寔鍐呭祵寮�yaSSL鐨�MySQL鐗堟湰锛屼笉瑕佽璇ヨ妭锛屼絾搴旈槄璇�5.8.7.3鑺傦紝鈥滀娇鐢▂aSSL鈥�銆�
瑕佹兂鑾峰緱瀹夊叏鐨�MySQL杩炴帴锛屽繀椤伙細
1. 瀹夎OpenSSL搴撱�傛垜浠凡缁忔祴璇曚簡甯�OpenSSL 0.9.6鐨�MySQL銆傚鏋滀綘闇�瑕�OpenSSL锛岃璁块棶http://www.openssl.org銆�
2. 閰嶇疆MySQL锛岀敤--with-vio鍜�--with-openssl閫夐」杩愯configure鑴氭湰銆�
3. 纭繚鍗囩骇浜嗘巿鏉冭〃锛屼娇mysql.user琛ㄥ唴鍖呭惈SSL鐩稿叧鍒椼�傚鏋� 鎺堟潈琛ㄦ槸浠�MySQL 4.0.0涔嬪墠鐨勭増鏈崌绾э紝杩欏緢閲嶈銆傚崌绾ц繃绋嬭2.10.2鑺傦紝鈥滃崌绾ф巿鏉冭〃鈥�銆�
4. 瑕佹兂妫�鏌ユ槸鍚﹁繍琛岀殑mysqld鏈嶅姟鍣�鏀寔OpenSSL锛屽簲妫�鏌�have_openssl绯荤粺鍙橀噺鐨勫�硷細
5. mysql> SHOW VARIABLES LIKE 'have_openssl';
6. +---------------+-------+
7. | Variable_name | Value |
8. +---------------+-------+
9. | have_openssl | YES |
10. +---------------+-------+
濡傛灉鍊间负YES锛屾湇鍔″櫒鏀寔OpenSSL杩炴帴銆�
浣跨敤MySQL鐨勫唴宓屽紡yaSSL鏀寔锛屽彲浠ュ緢瀹规槗鍦颁娇鐢ㄥ畨鍏ㄨ繛鎺ャ�備笉闇�瑕佸畨瑁�OpenSSL鍜屾墽琛�5.8.7.2鑺傦紝鈥滈渶姹�(OpenSSL)鈥�涓殑姝ラ銆傚苟涓旓紝MySQL鍜�yaSSL浣跨敤鐩稿悓鐨勮鍙ā鍨嬨��
褰撳墠锛屽湪浠ヤ笅骞冲彴涓婃敮鎸�yaSSL锛�
路 Linux/x86-64 Red Hat Enterprise 3.0
路 Linux RHAS21 Itanium-2锛屽甫gcc锛岄潤鎬侀摼鎺�
路 Linux Itanium-2锛屽甫gcc
路 Windows
褰撲粠婧愮爜鏋勫缓MySQL鏃跺鏋滀綘鎯宠鍚敤yaSSL锛屽簲杩欐牱閰嶇疆MySQL锛�
./configure --with-yassl=yes
瑕佹兂鍚姩MySQL鏈嶅姟鍣ㄦ敮鎸�yaSSL锛屼娇鐢ㄦ敮鎸�OpenSSL鐨勭浉鍚岀殑閫夐」锛屽苟璇嗗埆寤虹珛瀹夊叏杩炴帴闇�瑕佺殑璇佷功锛�
shell> mysqld --ssl-ca=cacert.pem \
--ssl-cert=server-cert.pem \
--ssl-key=server-key.pem
路 --ssl-ca璇嗗埆璁よ瘉鏈烘瀯璇佷功銆�
路 --ssl-cert璇嗗埆鏈嶅姟鍣ㄨ瘉涔︺��
路 --ssl-key璇嗗埆瀹㈡埛璇佷功銆�
瑕佹兂鐢�yaSSL鏀寔寤虹珛涓�MySQL鏈嶅姟鍣ㄧ殑瀹夊叏杩炴帴锛屽簲杩欐牱鍚姩瀹㈡埛绔細
shell> mysql --ssl-ca=cacert.pem \
--ssl-cert=server-cert.pem \
--ssl-key=server-key.pem
鎹㈠彞璇濊锛岄�夐」涓庢湇鍔″櫒鐨勭浉鍚岋紝骞朵笖璁よ瘉鏈烘瀯璇佷功蹇呴』鐩稿悓銆�
瑕佹兂浠庡簲鐢ㄧ▼搴忓缓绔嬪畨鍏ㄨ繛鎺ワ紝璋冪敤mysql_real_connect()涔嬪墠锛屽簲浣跨敤mysql_ssl_set()API鍑芥暟鏉ヨ缃浉搴旇璇侀�夐」銆傚弬瑙�25.2.3.64鑺傦紝鈥渕ysql_ssl_set()鈥�銆�
DIR=`pwd`/openssl
PRIV=$DIR/private
mkdir $DIR $PRIV $DIR/newcerts
cp /usr/share/ssl/openssl.cnf $DIR
replace ./demoCA $DIR -- $DIR/openssl.cnf
# Create necessary files: $database, $serial and $new_certs_dir
# directory (optional)
touch $DIR/index.txt
echo "01" > $DIR/serial
#
# Generation of Certificate Authority(CA)
#
openssl req -new -x509 -keyout $PRIV/cakey.pem -out $DIR/cacert.pem \
-config $DIR/openssl.cnf
# Sample output:
# Using configuration from /home/monty/openssl/openssl.cnf
# Generating a 1024 bit RSA private key
# ................++++++
# .........++++++
# writing new private key to '/home/monty/openssl/private/cakey.pem'
# Enter PEM pass phrase:
# Verifying password - Enter PEM pass phrase:
# -----
# You are about to be asked to enter information that will be
# incorporated into your certificate request.
# What you are about to enter is what is called a Distinguished Name
# or a DN.
# There are quite a few fields but you can leave some blank
# For some fields there will be a default value,
# If you enter '.', the field will be left blank.
# -----
# Country Name (2 letter code) [AU]:FI
# State or Province Name (full name) [Some-State]:.
# Locality Name (eg, city) []:
# Organization Name (eg, company) [Internet Widgits Pty Ltd]:MySQL AB
# Organizational Unit Name (eg, section) []:
# Common Name (eg, YOUR name) []:MySQL admin
# Email Address []:
#
# Create server request and key
#
openssl req -new -keyout $DIR/server-key.pem -out \
$DIR/server-req.pem -days 3600 -config $DIR/openssl.cnf
# Sample output:
# Using configuration from /home/monty/openssl/openssl.cnf
# Generating a 1024 bit RSA private key
# ..++++++
# ..........++++++
# writing new private key to '/home/monty/openssl/server-key.pem'
# Enter PEM pass phrase:
# Verifying password - Enter PEM pass phrase:
# -----
# You are about to be asked to enter information that will be
# incorporated into your certificate request.
# What you are about to enter is what is called a Distinguished Name
# or a DN.
# There are quite a few fields but you can leave some blank
# For some fields there will be a default value,
# If you enter '.', the field will be left blank.
# -----
# Country Name (2 letter code) [AU]:FI
# State or Province Name (full name) [Some-State]:.
# Locality Name (eg, city) []:
# Organization Name (eg, company) [Internet Widgits Pty Ltd]:MySQL AB
# Organizational Unit Name (eg, section) []:
# Common Name (eg, YOUR name) []:MySQL server
# Email Address []:
#
# Please enter the following 'extra' attributes
# to be sent with your certificate request
# A challenge password []:
# An optional company name []:
#
# Remove the passphrase from the key (optional)
#
openssl rsa -in $DIR/server-key.pem -out $DIR/server-key.pem
#
# Sign server cert
#
openssl ca -policy policy_anything -out $DIR/server-cert.pem \
-config $DIR/openssl.cnf -infiles $DIR/server-req.pem
# Sample output:
# Using configuration from /home/monty/openssl/openssl.cnf
# Enter PEM pass phrase:
# Check that the request matches the signature
# Signature ok
# The Subjects Distinguished Name is as follows
# countryName :PRINTABLE:'FI'
# organizationName :PRINTABLE:'MySQL AB'
# commonName :PRINTABLE:'MySQL admin'
# Certificate is to be certified until Sep 13 14:22:46 2003 GMT
# (365 days)
# Sign the certificate? [y/n]:y
#
#
# 1 out of 1 certificate requests certified, commit? [y/n]y
# Write out database with 1 new entries
# Data Base Updated
#
# Create client request and key
#
openssl req -new -keyout $DIR/client-key.pem -out \
$DIR/client-req.pem -days 3600 -config $DIR/openssl.cnf
# Sample output:
# Using configuration from /home/monty/openssl/openssl.cnf
# Generating a 1024 bit RSA private key
# .....................................++++++
# .............................................++++++
# writing new private key to '/home/monty/openssl/client-key.pem'
# Enter PEM pass phrase:
# Verifying password - Enter PEM pass phrase:
# -----
# You are about to be asked to enter information that will be
# incorporated into your certificate request.
# What you are about to enter is what is called a Distinguished Name
# or a DN.
# There are quite a few fields but you can leave some blank
# For some fields there will be a default value,
# If you enter '.', the field will be left blank.
# -----
# Country Name (2 letter code) [AU]:FI
# State or Province Name (full name) [Some-State]:.
# Locality Name (eg, city) []:
# Organization Name (eg, company) [Internet Widgits Pty Ltd]:MySQL AB
# Organizational Unit Name (eg, section) []:
# Common Name (eg, YOUR name) []:MySQL user
# Email Address []:
#
# Please enter the following 'extra' attributes
# to be sent with your certificate request
# A challenge password []:
# An optional company name []:
#
# Remove a passphrase from the key (optional)
#
openssl rsa -in $DIR/client-key.pem -out $DIR/client-key.pem
#
# Sign client cert
#
openssl ca -policy policy_anything -out $DIR/client-cert.pem \
-config $DIR/openssl.cnf -infiles $DIR/client-req.pem
# Sample output:
# Using configuration from /home/monty/openssl/openssl.cnf
# Enter PEM pass phrase:
# Check that the request matches the signature
# Signature ok
# The Subjects Distinguished Name is as follows
# countryName :PRINTABLE:'FI'
# organizationName :PRINTABLE:'MySQL AB'
# commonName :PRINTABLE:'MySQL user'
# Certificate is to be certified until Sep 13 16:45:17 2003 GMT
# (365 days)
# Sign the certificate? [y/n]:y
#
#
# 1 out of 1 certificate requests certified, commit? [y/n]y
# Write out database with 1 new entries
# Data Base Updated
#
# Create a my.cnf file that you can use to test the certificates
#
cnf=""
cnf="$cnf [client]"
cnf="$cnf ssl-ca=$DIR/cacert.pem"
cnf="$cnf ssl-cert=$DIR/client-cert.pem"
cnf="$cnf ssl-key=$DIR/client-key.pem"
cnf="$cnf [mysqld]"
cnf="$cnf ssl-ca=$DIR/cacert.pem"
cnf="$cnf ssl-cert=$DIR/server-cert.pem"
cnf="$cnf ssl-key=$DIR/server-key.pem"
echo $cnf | replace " " '
' > $DIR/my.cnf
瑕佹兂娴嬭瘯SSL杩炴帴锛屾寜涓嬮潰鏂规硶鍚姩鏈嶅姟鍣紝鍏朵腑$DIR鏄ず渚�my.cnf閫夐」鏂囦欢瀹夎鐨勮矾寰勫悕锛�
shell> MySQLd --defaults-file=$DIR/my.cnf &
鐒跺悗浣跨敤鐩稿悓鐨勯�夐」鏂囦欢璋冪敤瀹㈡埛绔▼搴忥細
shell> MySQL --defaults-file=$DIR/my.cnf
濡傛灉浣犳湁MySQL婧愮爜鍒嗗彂鐗堬紝杩樺彲浠ヤ慨鏀瑰墠闈㈢殑my.cnf鏂囦欢鏉ユ寚鍚�SSL鐩綍涓殑绀鸿寖璇佷功鍜屽瘑閽ユ枃浠舵潵娴嬭瘯浣犵殑璁剧疆銆�
5.8.7.5.聽SSL GRANT 閫夐」
MySQL鍙互妫�鏌�X509璇佷功鐨勫睘鎬у拰鍩轰簬鐢ㄦ埛鍚嶅拰瀵嗙爜鐨勯�氱敤閴村畾鏂规硶銆傝鎯充负MySQL璐︽埛鎸囧畾SSL鐩稿叧閫夐」锛屼娇鐢�GRANT璇彞鐨�REQUIRE瀛愬彞銆傚弬瑙�13.5.1.3鑺傦紝鈥淕RANT鍜孯EVOKE璇硶鈥�銆�
鏈夊绉嶅彲鑳芥潵闄愬埗涓�涓处鎴风殑杩炴帴绫诲瀷锛�
路 濡傛灉璐︽埛娌℃湁SSL鎴�X509闇�姹傦紝濡傛灉鐢ㄦ埛鍚嶅拰瀵嗙爜鍚堟硶锛屽厑璁告湭鍔犲瘑鐨勮繛鎺ャ�備絾鏄紝濡傛灉瀹㈡埛鏈夋纭殑璇佷功鍜屽瘑閽ユ枃浠讹紝鍦ㄥ鎴烽�夐」涓彲浠ヤ娇鐢ㄥ姞瀵嗚繛鎺ャ��
路 REQUIRE SSL閫夐」闄愬埗鏈嶅姟鍣ㄥ彧鍏佽璇ヨ处鎴风殑SSL鍔犲瘑杩炴帴銆傝娉ㄦ剰濡傛灉鏈�ACL璁板綍鍏佽闈�SSL杩炴帴锛岃閫夐」浼氳蹇界暐銆�
路 mysql> GRANT ALL PRIVILEGES ON test.* TO 'root'@'localhost'
路 -> IDENTIFIED BY 'goodsecret' REQUIRE SSL;
路 REQUIRE X509琛ㄧず瀹㈡埛蹇呴』鏈夊悎娉曡瘉涔︿絾纭垏鐨勮瘉涔︺�佸垎鍙戣�呭拰涓讳綋涓嶉噸瑕併�傚敮涓�鐨勯渶姹傛槸搴斿彲浠ヨ鏌愪釜CA璁よ瘉鏈烘瀯楠岃瘉瀹冪殑绛惧悕銆�
路 mysql> GRANT ALL PRIVILEGES ON test.* TO 'root'@'localhost'
路 -> IDENTIFIED BY 'goodsecret' REQUIRE X509;
路 REQUIRE ISSUER 'issuer'闄愬埗杩炴帴浼佸浘锛屽嵆瀹㈡埛蹇呴』鍑虹ずCA 'issuer'绛惧彂鐨勫悎娉�X509璇佷功銆傚鏋滃鎴峰嚭绀轰簡涓�涓悎娉曡瘉涔︼紝浣嗘槸鏄敱涓嶅悓鐨勫垎鍙戣�呯鍙戯紝鏈嶅姟鍣ㄦ嫆缁濊繛鎺ャ�備娇鐢�X509璇佷功琛ㄧず瑕佸姞瀵嗭紝鍥犳涓嶉渶瑕�SSL閫夐」銆�
路 mysql> GRANT ALL PRIVILEGES ON test.* TO 'root'@'localhost'
路 -> IDENTIFIED BY 'goodsecret'
路 -> REQUIRE ISSUER '/C=FI/ST=Some-State/L=Helsinki/
路 O=MySQL Finland AB/CN=Tonu Samuel/[email protected]';
璇锋敞鎰�ISSUER鍊煎簲鍋氫负鍗曚竴瀛楃涓茶緭鍏ャ��
路 REQUIRE SUBJECT 'subject' 闄愬埗杩炴帴浼佸浘锛屽嵆瀹㈡埛蹇呴』鍑虹ず涓婚涓�'subject'鐨勫悎娉�X509璇佷功銆傚鏋滃鎴峰嚭绀轰簡涓�涓悎娉曡瘉涔︼紝浣嗘槸鏈変笉鍚岀殑涓婚锛屾湇鍔″櫒鎷掔粷杩炴帴銆�
路 mysql> GRANT ALL PRIVILEGES ON test.* TO 'root'@'localhost'
路 -> IDENTIFIED BY 'goodsecret'
路 -> REQUIRE SUBJECT '/C=EE/ST=Some-State/L=Tallinn/
路 O=MySQL demo client certificate/
CN=Tonu Samuel/[email protected]';
璇锋敞鎰�SUBJECT鍊煎簲鍋氫负鍗曚竴瀛楃涓茶緭鍏ャ��
路 REQUIRE CIPHER 'cipher'鐢ㄦ潵纭繚浣跨敤瓒冲寮虹殑瀵嗙爜鍜屽瘑閽ラ暱搴︺�傚鏋滀娇鐢ㄦ棫鐨勭煭鍔犲瘑瀵嗛挜绠楁硶锛�SSL鏈韩鍙兘寰堝急銆備娇鐢ㄨ閫夐」锛屾垜浠彲浠ョ储鍙栫‘鍒囩殑鍔犲瘑鏂规硶鏉ヨ繛鎺ャ��
路 mysql> GRANT ALL PRIVILEGES ON test.* TO 'root'@'localhost'
路 -> IDENTIFIED BY 'goodsecret'
-> REQUIRE CIPHER 'EDH-RSA-DES-CBC3-SHA';
鍦�REQUIRE瀛愬彞涓紝鍙互缁撳悎浣跨敤SUBJECT銆�ISSUER鍜�CIPHER閫夐」锛�
mysql> GRANT ALL PRIVILEGES ON test.* TO 'root'@'localhost'
-> IDENTIFIED BY 'goodsecret'
-> REQUIRE SUBJECT '/C=EE/ST=Some-State/L=Tallinn/
O=MySQL demo client certificate/
CN=Tonu Samuel/[email protected]'
-> AND ISSUER '/C=FI/ST=Some-State/L=Helsinki/
O=MySQL Finland AB/CN=Tonu Samuel/[email protected]'
-> AND CIPHER 'EDH-RSA-DES-CBC3-SHA';
璇锋敞鎰�SUBJECT鍜�ISSUER鍊煎簲鍋氫负鍗曚竴瀛楃涓茶緭鍏ャ��
鍦�MySQL 5.1涓�,鍦�REQUIRE閫夐」涔嬮棿鍙互閫夌敤AND鍏抽敭瀛椼��
閫夐」鐨勯『搴忎笉閲嶈锛屼絾浠讳綍閫夐」涓嶈兘鐢ㄤ袱娆°��
路 --ssl
瀵逛簬鏈嶅姟鍣紝璇ラ�夐」瑙勫畾璇ユ湇鍔″櫒鍏佽SSL杩炴帴銆傚浜庡鎴风绋嬪簭锛屽畠鍏佽瀹㈡埛浣跨敤SSL杩炴帴鏈嶅姟鍣ㄣ�傚崟鍗曡閫夐」涓嶈冻浠ヤ娇鐢�SSL杩炴帴銆傝繕蹇呴』鎸囧畾--ssl-ca銆�--ssl-cert鍜�--ssl-key閫夐」銆�
閫氬父浠庡弽鍚戜娇鐢ㄨ閫夐」琛ㄧず涓嶅簲浣跨敤SSL銆傝鎯冲疄鐜帮紝灏嗛�夐」鎸囧畾涓�--skip-ssl鎴�--ssl=0銆�
璇锋敞鎰忎娇鐢�--ssl涓�闇�瑕�SSL杩炴帴銆備緥濡傦紝濡傛灉缂栬瘧鐨勬湇鍔″櫒鎴栧鎴蜂笉鏀寔SSL锛屽垯浣跨敤鏅�氱殑鏈姞瀵嗙殑杩炴帴銆�
纭繚浣跨敤SSL杩炴帴鐨勫畨鍏ㄦ柟寮忔槸浣跨敤鍚�REQUIRE SSL瀛愬彞鐨�GRANT璇彞鍦ㄦ湇鍔″櫒涓婂垱寤轰竴涓处鎴枫�傜劧鍚庝娇鐢ㄨ璐︽埛鏉ヨ繛鎺ユ湇鍔″櫒锛屾湇鍔″櫒鍜屽鎴风鍧囧簲鍚敤SSL鏀寔銆�
路 --ssl-ca=file_name
鍚彲淇�SSL CA鐨勬竻鍗曠殑鏂囦欢鐨勮矾寰勩��
路 --ssl-capath=directory_name
鍖呭惈pem鏍煎紡鐨勫彲淇�SSL CA璇佷功鐨勭洰褰曠殑璺緞銆�
路 --ssl-cert=file_name
SSL璇佷功鏂囦欢鍚嶏紝鐢ㄤ簬寤虹珛瀹夊叏杩炴帴銆�
路 --ssl-cipher=cipher_list
鍏佽鐨勭敤浜�SSL鍔犲瘑鐨勫瘑鐮佺殑娓呭崟銆�cipher_list鐨勬牸寮忎笌OpenSSL ciphers鍛戒护鐩稿悓銆�
绀轰緥锛�--ssl-cipher=ALL:-AES:-EXP
路 --ssl-key=file_name
SSL瀵嗛挜鏂囦欢鍚嶏紝鐢ㄤ簬寤虹珛瀹夊叏杩炴帴銆�
5.8.7.7. 鐢⊿SH浠ヨ繙绋嬫柟寮忎粠Windows杩炴帴鍒癕ySQL
1. 鍦�Windows涓绘満涓婂畨瑁�SSH瀹㈡埛绔�備綔涓虹敤鎴凤紝鎴戞墍鍙戠幇鐨勬渶濂界殑闈炲厤璐瑰鎴风鏉ヨ嚜http://www.vandyke.com/鐨�SecureCRT銆傚彟涓�涓�夊垯鏄�http://www.f-secure.com/鐨�f-secure銆備綘杩樺彲浠ヤ粠http://directory.google.com/Top/Computers/Security/Products_and_Tools/Cryptography/SSH/Clients/Windows/ 鐨�Google鎵惧埌涓�浜涘厤璐瑰鎴风銆�
2. 鍚姩Windows SSH瀹㈡埛绔�傝缃�Host_Name = yourmysqlserver_URL_or_IP銆傝缃�userid=your_userid浠ヤ究鐧诲綍鏈嶅姟鍣ㄣ�傛userid鍊煎彲浠ヤ笌浣犵殑MySQL璐︽埛鐨勭敤鎴峰悕涓嶇浉鍚屻��
3. 璁剧疆绔彛鏄犲皠銆傚彲浠ヨ繘琛岃繙绋嬫槧灏�(璁剧疆local_port: 3306, remote_host: yourmysqlservername_or_ip, remote_port: 3306)鎴栨湰鍦版槧灏�(璁剧疆port: 3306, host: localhost, remote port: 3306)銆�
4. 杩涜淇濆瓨锛屽惁鍒欎笅娆￠渶瑕侀噸璁俱��
5. 鍒氬垱寤虹殑SSH浼氳瘽鐧诲綍鏈嶅姟鍣ㄣ��
6. 鍦�Windows鏈哄櫒涓婂惎鍔ㄧ浉搴�ODBC搴旂敤绋嬪簭(渚嬪Access)銆�
7. 鍦�Windows涓垱寤轰竴涓柊鐨勬枃浠舵寜鐓у父鐢ㄦ柟娉曢�氳繃ODBC椹卞姩绋嬪簭閾炬帴MySQL锛屼笉鍚岀殑鏄涓�MySQL鏈嶅姟鍣ㄨ緭鍏�localhost锛岃�屼笉鏄�yourmysqlservername銆�
浣犲簲鏈変娇鐢�SSH鍔犲瘑鐨�ODBC杩炴帴鍒�MySQL銆�
5.9. 澶囦唤涓庢仮澶�
鏈妭璁ㄨ濡備綍杩涜鏁版嵁搴撳浠�(瀹屽叏澶囦唤鍜屽閲忓浠�)锛屼互鍙婂浣曟墽琛岃〃鐨勭淮鎶ゃ�傛湰鑺傛弿杩扮殑SQL璇彞璇硶鍙傝绗�5绔狅細鏁版嵁搴撶鐞�銆傛澶勬彁渚涚殑澶у鏁颁俊鎭富瑕侀�傚悎MyISAM琛ㄣ��InnoDB澶囦唤绋嬪簭鍙傝15.2.8鑺傦紝鈥淚nnoDB鏁版嵁搴撶殑澶囦唤鍜屾仮澶�鈥�銆�
鍥犱负MySQL琛ㄤ繚瀛樹负鏂囦欢鏂瑰紡锛屽緢瀹规槗澶囦唤銆傝鎯充繚鎸佸浠界殑涓�鑷存�э紝瀵圭浉鍏宠〃鎵цLOCK TABLES鎿嶄綔锛岀劧鍚庡琛ㄦ墽琛�FLUSH TABLES銆傚弬瑙�13.4.5鑺傦紝鈥淟OCK TABLES鍜孶NLOCK TABLES璇硶鈥�鍜�13.5.5.2鑺傦紝鈥淔LUSH璇硶鈥�銆備綘鍙渶瑕佽閿佸畾锛涜繖鏍峰綋浣犲鍒舵暟鎹簱鐩綍涓殑鏂囦欢鏃讹紝鍏佽鍏跺畠瀹㈡埛缁х画鏌ヨ琛ㄣ�傞渶瑕�FLUSH TABLES璇彞鏉ョ‘淇濆紑濮嬪浠藉墠灏嗘墍鏈夋縺娲荤殑绱㈠紩椤靛啓鍏ョ‖鐩樸��
濡傛灉浣犳兂瑕佽繘琛�SQL绾у埆鐨勮〃澶囦唤锛屼綘鍙互浣跨敤SELECT INTO ...OUTFILE鎴�BACKUP TABLE銆傚浜�SELECT INTO ...OUTFILE锛� 杈撳嚭鐨勬枃浠朵笉鑳藉厛瀛樺湪銆傚浜�BACKUP TABLE涔熷姝わ紝鍥犱负瑕嗙洊瀹屾暣鐨勬枃浠朵細鏈夊畨鍏ㄩ闄┿�傚弬瑙�13.2.7鑺傦紝鈥淪ELECT璇硶鈥�鍜�13.5.2.2鑺傦紝鈥淏ACKUP TABLE璇硶鈥�銆�
澶囦唤鏁版嵁搴撶殑鍙︿竴涓妧鏈槸浣跨敤mysqldump绋嬪簭鎴�mysqlhotcopy鑴氭湰銆傚弬瑙�8.8鑺傦紝鈥渕ysqldump锛氭暟鎹簱澶囦唤绋嬪簭鈥�鍜�8.9鑺傦紝鈥渕ysqlhotcopy锛氭暟鎹簱澶囦唤绋嬪簭鈥�銆�
1. 瀹屽叏澶囦唤鏁版嵁搴擄細
2. shell> mysqldump --tab=/path/to/some/dir --opt db_name
鎴栵細
shell> mysqlhotcopy db_name /path/to/some/dir
鍙鏈嶅姟鍣ㄤ笉鍐嶈繘琛屾洿鏂帮紝杩樺彲浠ュ彧澶嶅埗鎵�鏈夎〃鏂囦欢(*.frm銆�*.MYD鍜�*.MYI鏂囦欢)銆�mysqlhotcopy鑴氭湰浣跨敤璇ユ柟娉曘��(浣嗚娉ㄦ剰濡傛灉鏁版嵁搴撳寘鍚�InnoDB琛紝杩欎簺鏂规硶涓嶅伐浣溿��InnoDB涓嶅皢琛ㄧ殑鍐呭淇濆瓨鍒版暟鎹簱鐩綍涓紝mysqlhotcopy鍙�傚悎MyISAM琛級銆�
3. 濡傛灉mysqld鍦ㄨ繍琛屽垯鍋滄锛岀劧鍚庣敤--log-bin[=file_name]閫夐」鏉ュ惎鍔ㄣ�傚弬瑙�5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆備簩杩涘埗鏃ュ織鏂囦欢涓彁渚涗簡 鎵цmysqldump涔嬪悗瀵规暟鎹簱鐨勬洿鏀硅繘琛屽鍒舵墍闇�瑕佺殑淇℃伅銆�
瀵逛簬InnoDB琛紝鍙互杩涜鍦ㄧ嚎澶囦唤锛屼笉闇�瑕佸琛ㄨ繘琛岄攣瀹氾紱鍙傝8.8鑺傦紝鈥渕ysqldump锛氭暟鎹簱澶囦唤绋嬪簭鈥�銆�
MySQL鏀寔澧為噺澶囦唤:闇�瑕佺敤--log-bin閫夐」鏉ュ惎鍔ㄦ湇鍔″櫒浠ヤ究鍚敤浜岃繘鍒舵棩蹇楋紱鍙傝5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆傚綋鎯宠杩涜澧為噺澶囦唤鏃�(鍖呭惈涓婁竴娆″畬鍏ㄥ浠芥垨澧為噺澶囦唤涔嬪悗鐨勬墍鏈夋洿鏀�)锛屽簲浣跨敤FLUSH LOGS鍥炴粴浜岃繘鍒舵棩蹇椼�傜劧鍚庯紝浣犻渶瑕佸皢浠庢渶鍚庣殑瀹屽叏鎴栧閲忓浠界殑鏌愪釜鏃跺埢鍒版渶鍚庢煇涓偣鐨勬墍鏈変簩杩涘埗鏃ュ織澶嶅埗鍒板浠戒綅缃�傝繖浜涗簩杩涘埗鏃ュ織涓哄閲忓浠斤紱鎭㈠鏃讹紝鎸夌収涓嬮潰鐨勮В閲婂簲鐢ㄣ�備笅娆¤繘琛屽畬鍏ㄥ浠芥椂锛岃繕搴斾娇鐢�FLUSH LOGS鎴�mysqlhotcopy --flushlogs鍥炴粴浜岃繘鍒舵棩蹇椼�傚弬瑙�8.8鑺傦紝鈥渕ysqldump锛氭暟鎹簱澶囦唤绋嬪簭鈥�鍜�8.9鑺傦紝鈥渕ysqlhotcopy锛氭暟鎹簱澶囦唤绋嬪簭鈥�銆�
濡傛灉MySQL鏈嶅姟鍣ㄤ负浠庡鍒舵湇鍔″櫒锛屽垯鏃犺閫夋嫨浠�涔堝浠芥柟娉曪紝褰撳浠戒粠鏈烘暟鎹椂锛岃繕搴斿浠�master.info鍜�relay-log.info鏂囦欢銆傛仮澶嶄簡浠庢満鏁版嵁鍚庯紝闇�瑕佽繖浜涙枃浠舵潵缁х画澶嶅埗銆傚鏋滀粠鏈烘墽琛屽鍒�LOAD DATA INFILE鍛戒护锛屼綘搴旇繕澶囦唤鐢�--slave-load-tmpdir閫夐」鎸囧畾鐨勭洰褰曚腑鐨�SQL_LOAD-*鏂囦欢銆�(濡傛灉鏈寚瀹氾紝璇ヤ綅缃粯璁や负tmpdir鍙橀噺鍊硷級銆�浠庢満闇�瑕佽繖浜涙枃浠舵潵缁х画澶嶅埗涓柇鐨�LOAD DATA INFILE鎿嶄綔銆�
濡傛灉蹇呴』鎭㈠MyISAM琛紝鍏堜娇鐢�REPAIR TABLE鎴�myisamchk -r鏉ユ仮澶嶃��99.9%鐨勬儏鍐典笅璇ユ柟娉曞彲浠ュ伐浣溿�傚鏋�myisamchk澶辫触锛岃瘯璇曚笅闈㈢殑鏂规硶銆傝娉ㄦ剰鍙湁鐢�--log-bin閫夐」鍚姩浜�MySQL浠庤�屽惎鐢ㄤ簩杩涘埗鏃ュ織瀹冩墠宸ヤ綔锛涘弬瑙�5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆�
1. 鎭㈠鍘�mysqldump澶囦唤锛屾垨浜岃繘鍒跺浠姐��
2. 鎵ц涓嬮潰鐨勫懡浠ら噸鏂版洿鏂颁簩杩涘埗鏃ュ織锛�
3. shell> mysqlbinlog hostname-bin.[0-9]* | mysql
鍦ㄦ煇浜涙儏鍐典笅锛屼綘鍙兘鍙兂瑕佷粠鏌愪釜浣嶇疆閲嶆柊杩愯鏌愪簺浜岃繘鍒舵棩蹇椼��(閫氬父浣犳兂瑕佷粠鎭㈠澶囦唤鐨勬棩鏈熼噸鏂拌繍琛屾墍鏈変簩杩涘埗鏃ュ織锛屾煡璇笉姝ｇ‘鏃朵緥澶�)銆傚叧浜�mysqlbinlog宸ュ叿鍜屽浣曚娇鐢ㄥ畠鐨勮缁嗕俊鎭弬瑙�8.6鑺傦紝鈥渕ysqlbinlog锛氱敤浜庡鐞嗕簩杩涘埗鏃ュ織鏂囦欢鐨勫疄鐢ㄥ伐鍏封��銆�
杩樺彲浠ュ鍏蜂綋鏂囦欢杩涜閫夋嫨澶囦唤锛�
路 瑕佹兂澶嶅埗琛紝浣跨敤SELECT * INTO OUTFILE 'file_name' FROM tbl_name銆�
路 瑕佹兂閲嶈浇琛紝浣跨敤LOAD DATA INFILE 'file_name' REPLACE ...骞舵仮澶嶃�傝閬垮厤澶嶅埗璁板綍锛岃〃蹇呴』鏈�PRIMARY KEY鎴栦竴涓�UNIQUE绱㈠紩銆傚綋鏂拌褰曞鍒跺敮涓�閿�肩殑鏃ц褰曟椂锛�REPLACE鍏抽敭瀛楀彲浠ュ皢鏃ц褰曟浛鎹负鏂拌褰曘��
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路 纭欢闂(纭洏銆佹瘝鏉跨瓑绛�)
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InnoDB: Database was not shut down normally.
InnoDB: Starting recovery from log files...
InnoDB: Starting log scan based on checkpoint at
InnoDB: log sequence number 0 13674004
InnoDB: Doing recovery: scanned up to log sequence number 0 13739520
InnoDB: Doing recovery: scanned up to log sequence number 0 13805056
InnoDB: Doing recovery: scanned up to log sequence number 0 13870592
InnoDB: Doing recovery: scanned up to log sequence number 0 13936128
...
InnoDB: Doing recovery: scanned up to log sequence number 0 20555264
InnoDB: Doing recovery: scanned up to log sequence number 0 20620800
InnoDB: Doing recovery: scanned up to log sequence number 0 20664692
InnoDB: 1 uncommitted transaction(s) which must be rolled back
InnoDB: Starting rollback of uncommitted transactions
InnoDB: Rolling back trx no 16745
InnoDB: Rolling back of trx no 16745 completed
InnoDB: Rollback of uncommitted transactions completed
InnoDB: Starting an apply batch of log records to the database...
InnoDB: Apply batch completed
InnoDB: Started
mysqld: ready for connections
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-rw-rw---- 1 guilhem guilhem 1277324 Nov 10 23:59 gbichot2-bin.000001
-rw-rw---- 1 guilhem guilhem 4 Nov 10 23:59 gbichot2-bin.000002
-rw-rw---- 1 guilhem guilhem 79 Nov 11 11:06 gbichot2-bin.000003
-rw-rw---- 1 guilhem guilhem 508 Nov 11 11:08 gbichot2-bin.000004
-rw-rw---- 1 guilhem guilhem 220047446 Nov 12 16:47 gbichot2-bin.000005
-rw-rw---- 1 guilhem guilhem 998412 Nov 14 10:08 gbichot2-bin.000006
-rw-rw---- 1 guilhem guilhem 361 Nov 14 10:07 gbichot2-bin.index
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shell> mysqldump --single-transaction --flush-logs --master-data=2
--all-databases > backup_sunday_1_PM.sql
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-- CHANGE MASTER TO MASTER_LOG_FILE='gbichot2-bin.000007',MASTER_LOG_POS=4;
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shell> mysqldump --single-transaction --flush-logs --master-data=2
--all-databases --delete-master-logs > backup_sunday_1_PM.sql
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shell> mysql < backup_sunday_1_PM.sql
鍦ㄨ鐐癸紝鏁版嵁鎭㈠鍒版槦鏈熸棩涓嬪崍1鐐圭殑鐘舵�併�傝鎯虫仮澶嶄粠閭ｆ椂璧风殑鏇存敼锛屾垜浠繀椤讳娇鐢ㄥ閲忓浠斤紝涔熷氨鏄紝gbichot2-bin.000007鍜�gbichot2-bin.000008浜岃繘鍒舵棩蹇楁枃浠躲�傛牴鎹渶瑕佷粠澶囦唤澶勫彇杩囪繖浜涙枃浠讹紝鐒跺悗鎸変笅杩版柟寮忓鐞嗭細
shell> mysqlbinlog gbichot2-bin.000007 gbichot2-bin.000008 | mysql
鎴戜滑鐜板湪灏嗘暟鎹仮澶嶅埌鏄熸湡浜屼笅鍗�1鐐圭殑鐘舵�侊紝浣嗘槸浠庤鏃跺埢鍒板穿婧冧箣闂寸殑鏁版嵁浠嶇劧鏈変涪澶便�傝鎯虫仮澶嶏紝鎴戜滑闇�瑕�MySQL鏈嶅姟鍣ㄥ皢MySQL浜岃繘鍒舵棩蹇椾繚瀛樺埌瀹夊叏鐨勪綅缃�(RAID disks, SAN, ...)锛屽簲涓轰笌鏁版嵁鏂囦欢鐨勪繚瀛樹綅缃笉鍚岀殑鍦版柟锛屼繚璇佽繖浜涙棩蹇椾笉鍦ㄦ瘉鍧忕殑纭洏涓娿��(涔熷氨鏄紝鎴戜滑鍙互鐢�--log-bin閫夐」鍚姩鏈嶅姟鍣紝鎸囧畾涓�涓叾瀹冪墿鐞嗚澶囦笂鐨勪笌鏁版嵁鐩綍涓嶅悓鐨勪綅缃�傝繖鏍凤紝鍗充娇鍖呭惈璇ョ洰褰曠殑璁惧涓㈠け锛屾棩蹇椾篃涓嶄細涓㈠け锛�銆�濡傛灉鎴戜滑鎵ц浜嗚繖浜涙搷浣滐紝鎴戜滑鎵嬪ご涓婁細鏈�gbichot2-bin.000009鏂囦欢锛屾垜浠彲浠ョ敤瀹冩潵鎭㈠澶ч儴鍒嗘渶鏂扮殑鏁版嵁鏇存敼锛岃�屼笉浼氫涪澶卞埌宕╂簝鏃剁殑鏁版嵁銆�
鍑虹幇鎿嶄綔绯荤粺宕╂簝鎴栫數婧愭晠闅滄椂锛�InnoDB鑷繁鍙互瀹屾垚鎵�鏈夋暟鎹仮澶嶅伐浣溿�備絾涓轰簡纭繚浣犲彲浠ョ潯濂借锛屽簲閬典粠涓嬮潰鐨勬寚瀵硷細
路 涓�瀹氱敤--log-bin鎴栫敋鑷�--log-bin=log_name閫夐」杩愯MySQL鏈嶅姟鍣紝鍏朵腑鏃ュ織鏂囦欢鍚嶄綅浜庢煇涓畨鍏ㄥ獟浠嬩笂锛屼笉鍚屼簬鏁版嵁鐩綍鎵�鍦ㄩ┍鍔ㄥ櫒銆傚鏋滀綘鏈夎繖鏍风殑瀹夊叏濯掍粙锛屾渶濂借繘琛岀‖鐩樿礋杞藉潎琛�(杩欐牱鑳藉鎻愰珮鎬ц兘)銆�
路 瀹氭湡杩涜瀹屽叏澶囦唤锛屼娇鐢�mysqldump鍛戒护杩涜鍦ㄧ嚎闈炲潡澶囦唤銆�
路 鐢�FLUSH LOGS鎴�mysqladmin flush-logs娓呯┖鏃ュ織杩涜瀹氭湡澧為噺澶囦唤銆�
濡傛灉MySQL鏈嶅姟鍣ㄥ惎鐢ㄤ簡浜岃繘鍒舵棩蹇楋紝浣犲彲浠ヤ娇鐢�mysqlbinlog宸ュ叿鏉ユ仮澶嶄粠鎸囧畾鐨勬椂闂寸偣寮�濮� (渚嬪锛屼粠浣犳渶鍚庝竴娆″浠�)鐩村埌鐜板湪鎴栧彟涓�涓寚瀹氱殑鏃堕棿鐐圭殑鏁版嵁銆傚叧浜庡惎鐢ㄤ簩杩涘埗鏃ュ織鐨勪俊鎭紝鍙傝5.11.3鑺傦紝鈥滀簩杩涘埗鏃ュ織鈥�銆傚浜�mysqlbinlog鐨勮缁嗕俊鎭紝鍙傝8.6鑺傦紝鈥渕ysqlbinlog锛氱敤浜庡鐞嗕簩杩涘埗鏃ュ織鏂囦欢鐨勫疄鐢ㄥ伐鍏封��銆�
瑕佹兂浠庝簩杩涘埗鏃ュ織鎭㈠鏁版嵁锛屼綘闇�瑕佺煡閬撳綋鍓嶄簩杩涘埗鏃ュ織鏂囦欢鐨勮矾寰勫拰鏂囦欢鍚嶃�備竴鑸彲浠ヤ粠閫夐」鏂囦欢(鍗�my.cnf or my.ini锛屽彇鍐充簬浣犵殑绯荤粺)涓壘鍒拌矾寰勩�傚鏋滄湭鍖呭惈鍦ㄩ�夐」鏂囦欢涓紝褰撴湇鍔″櫒鍚姩鏃讹紝鍙互鍦ㄥ懡浠よ涓互閫夐」鐨勫舰寮忕粰鍑恒�傚惎鐢ㄤ簩杩涘埗鏃ュ織鐨勯�夐」涓�--log-bin銆傝鎯崇‘瀹氬綋鍓嶇殑浜岃繘鍒舵棩蹇楁枃浠剁殑鏂囦欢鍚嶏紝杈撳叆涓嬮潰鐨�MySQL璇彞锛�
SHOW BINLOG EVENTS \G
浣犺繕鍙互浠庡懡浠よ杈撳叆涓嬮潰鐨勫唴瀹癸細
mysql --user=root -pmy_pwd -e 'SHOW BINLOG EVENTS \G'
灏嗗瘑鐮�my_pwd鏇挎崲涓烘湇鍔″櫒鐨�root瀵嗙爜銆�
mysqlbinlog --stop-date="2005-04-20 9:59:59" /var/log/mysql/bin.123456 \
| mysql -u root -pmypwd
璇ュ懡浠ゅ皢鎭㈠鎴鍒板湪--stop-date閫夐」涓互DATETIME鏍煎紡缁欏嚭鐨勬棩鏈熷拰鏃堕棿鐨勬墍鏈夋暟鎹�傚鏋滀綘娌℃湁妫�娴嬪埌鍑犱釜灏忔椂鍚庤緭鍏ョ殑閿欒鐨�SQL璇彞锛屽彲鑳戒綘鎯宠鎭㈠鍚庨潰鍙戠敓鐨勬椿鍔ㄣ�傛牴鎹繖浜涳紝浣犲彲浠ョ敤璧蜂娇鏃ユ湡鍜屾椂闂村啀娆¤繍琛�mysqlbinlog锛�
mysqlbinlog --start-date="2005-04-20 10:01:00" /var/log/mysql/bin.123456 \
| mysql -u root -pmypwd \
鍦ㄨ琛屼腑锛屼粠涓婂崍10:01鐧诲綍鐨�SQL璇彞灏嗚繍琛屻�傜粍鍚堟墽琛屽墠澶滅殑杞偍鏂囦欢鍜�mysqlbinlog鐨勪袱琛屽彲浠ュ皢鎵�鏈夋暟鎹仮澶嶅埌涓婂崍10:00鍓嶄竴绉掗挓銆備綘搴旀鏌ユ棩蹇椾互纭繚鏃堕棿纭垏銆備笅涓�鑺備粙缁嶅浣曞疄鐜般��
5.9.3.2. 鎸囧畾鎭㈠浣嶇疆
mysqlbinlog --start-date="2005-04-20 9:55:00" --stop-date="2005-04-20 10:05:00" \
/var/log/mysql/bin.123456 > /tmp/mysql_restore.sql
璇ュ懡浠ゅ皢鍦�/tmp鐩綍鍒涘缓灏忕殑鏂囨湰鏂囦欢锛屽皢鏄剧ず鎵ц浜嗛敊璇殑SQL璇彞鏃剁殑SQL璇彞銆備綘鍙互鐢ㄦ枃鏈紪杈戝櫒鎵撳紑璇ユ枃浠讹紝瀵绘壘浣犱笉瑕佹兂閲嶅鐨勮鍙ャ�傚鏋滀簩杩涘埗鏃ュ織涓殑浣嶇疆鍙风敤浜庡仠姝㈠拰缁х画鎭㈠鎿嶄綔锛屽簲杩涜娉ㄩ噴銆傜敤log_pos鍔犱竴涓暟瀛楁潵鏍囪浣嶇疆銆備娇鐢ㄤ綅缃彿鎭㈠浜嗕互鍓嶇殑澶囦唤鏂囦欢鍚庯紝浣犲簲浠庡懡浠よ杈撳叆涓嬮潰鍐呭锛�
mysqlbinlog --stop-position="368312" /var/log/mysql/bin.123456 \
| mysql -u root -pmypwd
mysqlbinlog --start-position="368315" /var/log/mysql/bin.123456 \
| mysql -u root -pmypwd \
涓婇潰鐨勭1琛屽皢鎭㈠鍒板仠姝綅缃负姝㈢殑鎵�鏈変簨鍔°�備笅涓�琛屽皢鎭㈠浠庣粰瀹氱殑璧峰浣嶇疆鐩村埌浜岃繘鍒舵棩蹇楃粨鏉熺殑鎵�鏈変簨鍔°�傚洜涓�mysqlbinlog鐨勮緭鍑哄寘鎷瘡涓�SQL璇彞璁板綍涔嬪墠鐨�SET TIMESTAMP璇彞锛屾仮澶嶇殑鏁版嵁鍜岀浉鍏�MySQL鏃ュ織灏嗗弽搴斾簨鍔℃墽琛岀殑鍘熸椂闂淬��
5.9.4. 琛ㄧ淮鎶ゅ拰宕╂簝鎭㈠
鍚庨潰鍑犺妭璁ㄨ濡備綍浣跨敤myisamchk鏉ユ鏌ユ垨缁存姢MyISAM琛�(瀵瑰簲.MYI鍜�.MYD鏂囦欢鐨勮〃)銆�
浣犲彲浠ヤ娇鐢�myisamchk瀹炵敤绋嬪簭鏉ヨ幏寰楁湁鍏充綘鐨勬暟鎹簱琛ㄧ殑淇℃伅鎴栨鏌ャ�佷慨澶嶃�佷紭鍖栦粬浠�備笅鍒楀皬鑺傛弿杩板浣曡皟鐢�myisamchk锛堝寘鎷畠鐨勯�夐」鐨勬弿杩帮級锛屽浣曞缓绔嬭〃鐨勭淮鎶よ鍒掞紝浠ュ強濡備綍浣跨敤myisamchk鎵ц鍚勭鍔熻兘銆�
灏界鐢�myisamchk淇琛ㄥ緢瀹夊叏锛屽湪淇(鎴栦换浣曞彲浠ュぇ閲忔洿鏀硅〃鐨勭淮鎶ゆ搷浣�)涔嬪墠鍏堣繘琛屽浠�涔熸槸寰堝ソ鐨勪範鎯�
褰卞搷绱㈠紩鐨�myisamchk鎿嶄綔浼氫娇ULLTEXT绱㈠紩鐢�full-text鍙傛暟閲嶅缓锛屼笉鍐嶄笌MySQL鏈嶅姟鍣ㄤ娇鐢ㄧ殑鍊煎吋瀹广�傝鎯抽伩鍏嶏紝璇烽槄璇�5.9.5.1鑺傦紝鈥滅敤浜巑yisamchk鐨勪竴鑸��椤�鈥�鐨勮鏄庛��
鍦ㄨ澶氭儏鍐典笅锛屼綘浼氬彂鐜颁娇鐢�SQL璇彞瀹炵幇MyISAM琛ㄧ殑缁存姢姣旀墽琛�myisamchk鎿嶄綔瑕佸鏄撳湴澶氾細
路 瑕佹兂妫�鏌ユ垨缁存姢MyISAM琛紝浣跨敤CHECK TABLE鎴�REPAIR TABLE銆�
路 瑕佹兂浼樺寲MyISAM琛紝浣跨敤OPTIMIZE TABLE銆�
路 瑕佹兂鍒嗘瀽MyISAM琛紝浣跨敤ANALYZE TABLE銆�
鍙互鐩存帴杩欎簺璇彞锛屾垨浣跨敤mysqlcheck瀹㈡埛绔▼搴忥紝鍙互鎻愪緵鍛戒护琛屾帴鍙ｃ��
杩欎簺璇彞姣�myisamchk鏈夊埄鐨勫湴鏂规槸鏈嶅姟鍣ㄥ彲浠ュ仛浠讳綍宸ヤ綔銆備娇鐢�myisamchk锛屼綘蹇呴』纭繚鏈嶅姟鍣ㄥ湪鍚屼竴鏃堕棿涓嶄娇鐢ㄨ〃銆傚惁鍒欙紝myisamchk鍜屾湇鍔″櫒涔嬮棿浼氬嚭鐜颁笉鏈熸湜鐨勭浉浜掑共娑夈��
鍙互浣跨敤myisamchk瀹炵敤绋嬪簭鏉ヨ幏寰楁湁鍏虫暟鎹簱琛ㄧ殑淇℃伅鎴栨鏌ャ�佷慨澶嶃�佷紭鍖栦粬浠��myisamchk閫傜敤MyISAM琛�(瀵瑰簲.MYI鍜�.MYD鏂囦欢鐨勮〃)銆�
璋冪敤myisamchk鐨勬柟娉曪細
shell> myisamchk [options] tbl_name ...
options鎸囧畾浣犳兂璁�myisamchk鍋氫粈涔堛�傚湪鍚庨潰鎻忚堪瀹冧滑銆傝繕鍙互閫氳繃璋冪敤myisamchk --help寰楀埌閫夐」鍒楄〃銆�
tbl_name鏄綘鎯宠妫�鏌ユ垨淇鐨勬暟鎹簱琛ㄣ�傚鏋滀綘涓嶅湪鏁版嵁搴撶洰褰曠殑鏌愬杩愯myisamchk锛屼綘蹇呴』鎸囧畾鏁版嵁搴撶洰褰曠殑璺緞锛屽洜涓�myisamchk涓嶇煡閬撲綘鐨勬暟鎹簱浣嶄簬鍝効銆傚疄闄呬笂锛�myisamchk涓嶅湪涔庝綘姝ｅ湪鎿嶄綔鐨勬枃浠舵槸鍚︿綅浜庝竴涓暟鎹簱鐩綍锛涗綘鍙互灏嗗搴斾簬鏁版嵁搴撹〃鐨勬枃浠舵嫹璐濆埌鍒骞朵笖鍦ㄩ偅閲屾墽琛屾仮澶嶆搷浣溿��
濡傛灉浣犳効鎰忥紝鍙互鐢�myisamchk鍛戒护琛屽懡鍚嶅嚑涓〃銆傝繕鍙互閫氳繃鍛藉悕绱㈠紩鏂囦欢(鐢�鈥� .MYI鈥�鍚庣紑)鏉ユ寚瀹氫竴涓〃銆傚畠鍏佽浣犻�氳繃浣跨敤妯″紡鈥�*.MYI鈥�鎸囧畾鍦ㄤ竴涓洰褰曟墍鏈夌殑琛ㄣ�備緥濡傦紝濡傛灉浣犲湪鏁版嵁搴撶洰褰曪紝鍙互杩欐牱鍦ㄧ洰褰曚笅妫�鏌ユ墍鏈夌殑MyISAM琛細
shell> myisamchk *.MYI
濡傛灉浣犱笉鍦ㄦ暟鎹簱鐩綍涓嬶紝鍙�氳繃鎸囧畾鍒扮洰褰曠殑璺緞妫�鏌ユ墍鏈夊湪閭ｉ噷鐨勮〃锛�
shell> myisamchk /path/to/database_dir/*.MYI
浣犵敋鑷冲彲浠ラ�氳繃涓�MySQL鏁版嵁鐩綍鐨勮矾寰勬寚瀹氫竴涓�氶厤绗︽潵妫�鏌ユ墍鏈夌殑鏁版嵁搴撲腑鐨勬墍鏈夎〃锛�
shell> myisamchk /path/to/datadir/*/*.MYI
鎺ㄨ崘鐨勫揩閫熸鏌ユ墍鏈�MyISAM琛ㄧ殑鏂瑰紡鏄細
shell> myisamchk --silent --fast /path/to/datadir/*/*.MYI
濡傛灉浣犳兂瑕佹鏌ユ墍鏈�MyISAM琛ㄥ苟淇浠讳綍鐮村潖鐨勮〃锛屽彲浠ヤ娇鐢ㄤ笅闈㈢殑鍛戒护锛�
shell> myisamchk --silent --force --fast --update-state \
-O key_buffer=64M -O sort_buffer=64M \
-O read_buffer=1M -O write_buffer=1M \
/path/to/datadir/*/*.MYI
璇ュ懡浠ゅ亣瀹氫綘鏈夊ぇ浜�64MB鐨勮嚜鐢卞唴瀛樸�傚叧浜庣敤myisamchk鍒嗛厤鍐呭瓨鐨勮缁嗕俊鎭紝鍙傝5.9.5.5鑺傦紝鈥�myisamchk鍐呭瓨浣跨敤鈥�銆�
褰撲綘杩愯myisamchk鏃讹紝蹇呴』纭繚鍏跺畠绋嬪簭涓嶄娇鐢ㄨ〃銆傚惁鍒欙紝褰撲綘杩愯myisamchk鏃讹紝浼氭樉绀轰笅闈㈢殑閿欒娑堟伅锛�
warning: clients are using or haven't closed the table properly
杩欒鏄庝綘姝ｅ皾璇曟鏌ユ琚彟涓�涓繕娌℃湁鍏抽棴鏂囦欢鎴栧凡缁忕粓姝㈣�屾病鏈夋纭湴鍏抽棴鏂囦欢鐨勭▼搴�(渚嬪mysqld鏈嶅姟鍣�)鏇存柊鐨勮〃銆�
濡傛灉mysqld姝ｅ湪杩愯锛屼綘蹇呴』閫氳繃FLUSH TABLES寮哄埗娓呯┖浠嶇劧鍦ㄥ唴瀛樹腑鐨勪换浣曡〃淇敼銆傚綋浣犺繍琛�myisamchk鏃讹紝蹇呴』纭繚鍏跺畠绋嬪簭涓嶄娇鐢ㄨ〃銆傞伩鍏嶈闂鐨勬渶瀹规槗鐨勬柟娉曟槸浣跨敤CHECK TABLE鑰屼笉鐢�myisamchk鏉ユ鏌ヨ〃銆�
鏈妭鎻忚堪鐨勯�夐」鍙互鐢ㄤ簬鐢�myisamchk鎵ц鐨勪换浣曠被鍨嬬殑琛ㄧ淮鎶ゆ搷浣溿�傛湰鑺傚悗闈㈢殑绔犺妭涓弿杩扮殑閫夐」鍙�傚悎鍏蜂綋鎿嶄綔锛屼緥濡傛鏌ユ垨淇琛ㄣ��
路 --help锛�-?
鏄剧ず甯姪娑堟伅骞堕��鍑恒��
路 --debug=debug_options, -# debug_options
杈撳嚭璋冭瘯璁板綍鏂囦欢銆�debug_options瀛楃涓茬粡甯告槸'd:t:o,filename'銆�
路 --silent锛�-s
娌夐粯妯″紡銆備粎褰撳彂鐢熼敊璇椂鍐欒緭鍑恒�備綘鑳戒娇鐢�-s涓ゆ(-ss)浣�myisamchk娌夐粯銆�
路 --verbose锛�-v
鍐楅暱妯″紡銆傛墦鍗版洿澶氱殑淇℃伅銆傝繖鑳戒笌-d鍜�-e涓�璧蜂娇鐢ㄣ�備负浜嗘洿鍐楅暱锛屼娇鐢�-v澶氭(-vv, -vvv)锛�
路 --version, -V
鏄剧ず鐗堟湰淇℃伅骞堕��鍑恒��
路 --wait, -w
濡傛灉琛ㄨ閿佸畾锛屼笉鏄彁绀洪敊璇粓姝紝鑰屾槸鍦ㄧ户缁墠绛夊緟鍒拌〃琚В閿併�傝娉ㄦ剰濡傛灉鐢�--skip-external-locking閫夐」杩愯mysqld锛屽彧鑳界敤鍙︿竴涓�myisamchk鍛戒护閿佸畾琛ㄣ��
杩樺彲浠ラ�氳繃--var_name=value閫夐」璁剧疆涓嬮潰鐨勫彉閲忥細
|
鍙橀噺 |
榛樿鍊� |
|
decode_bits |
9 |
|
ft_max_word_len |
鍙栧喅浜庣増鏈� |
|
ft_min_word_len |
4 |
|
ft_stopword_file |
鍐呭缓鍒楄〃 |
|
key_buffer_size |
523264 |
|
myisam_block_size |
1024 |
|
read_buffer_size |
262136 |
|
sort_buffer_size |
2097144 |
|
sort_key_blocks |
16 |
|
stats_method |
nulls_unequal |
|
write_buffer_size |
262136 |
鍙互鐢�myisamchk --help妫�鏌�myisamchk鍙橀噺鍙婂叾 榛樿鍊硷細
褰撶敤鎺掑簭閿�间慨澶嶉敭鍊兼椂浣跨敤sort_buffer_size锛屼娇鐢�--recover鏃惰繖鏄緢鏅�氱殑鎯呭喌銆�
褰撶敤--extend-check妫�鏌ヨ〃鎴栭�氳繃涓�琛屼竴琛屽湴灏嗛敭鍊兼彃鍏ヨ〃涓�(濡傚悓鏅�氭彃鍏�)鏉ヤ慨鏀归敭鍊兼椂浣跨敤Key_buffer_size銆傚湪浠ヤ笅鎯呭喌閫氳繃閿�肩紦鍐插尯杩涜淇锛�
路 浣跨敤--safe-recover銆�
路 褰撶洿鎺ュ垱寤洪敭鍊兼枃浠舵椂锛岄渶瑕佸閿�兼帓搴忕殑涓存椂鏂囦欢鏈変袱鍊嶅ぇ銆傞�氬父鏄綋CHAR銆�VARCHAR銆佹垨TEXT鍒楃殑閿�艰緝澶х殑鎯呭喌锛屽洜涓烘帓搴忔搷浣滃湪澶勭悊杩囩▼涓渶瑕佷繚瀛樺叏閮ㄩ敭鍊笺�傚鏋滀綘鏈夊ぇ閲忎复鏃剁┖闂达紝鍙互閫氳繃鎺掑簭寮哄埗浣跨敤myisamchk鏉ヤ慨澶嶏紝鍙互浣跨敤--sort-recover閫夐」銆�
閫氳繃閿�肩紦鍐插尯鐨勪慨澶嶅崰鐢ㄧ殑纭洏绌洪棿姣斾娇鐢ㄦ帓搴忎箞灏戯紝浣嗘槸瑕佹參銆�
濡傛灉鎯宠蹇�熶慨澶嶏紝灏�key_buffer_size鍜�sort_buffer_size鍙橀噺璁剧疆鍒板ぇ绾﹀彲鐢ㄥ唴瀛樼殑25%銆傚彲浠ュ皢涓や釜鍙橀噺璁剧疆涓鸿緝澶х殑鍊硷紝鍥犱负涓�涓椂闂村彧浣跨敤涓�涓彉閲忋��
myisam_block_size鏄敤浜庣储寮曞潡鐨勫唴瀛樺ぇ灏忋��
stats_method褰卞搷褰撶粰瀹�--analyze閫夐」鏃讹紝濡備綍涓虹储寮曠粺璁℃悳闆嗗鐞�NULL鍊笺�傚畠濡傚悓myisam_stats_method绯荤粺鍙橀噺銆傝缁嗕俊鎭弬瑙�5.3.3鑺傦紝鈥滄湇鍔″櫒绯荤粺鍙橀噺鈥�鍜�7.4.7鑺傦紝鈥淢yISAM绱㈠紩缁熻闆嗗悎鈥�鐨�myisam_stats_method鐨勬弿杩般��
ft_min_word_len鍜�ft_max_word_len琛ㄧずFULLTEXT绱㈠紩鐨勬渶灏忓拰鏈�澶у瓧闀裤��ft_stopword_file涓哄仠姝㈠瓧鏂囦欢鐨勬枃浠跺悕銆傞渶瑕佸湪浠ヤ笅鐜涓鍏惰繘琛岃缃��
濡傛灉浣犱娇鐢�myisamchk鏉ヤ慨鏀硅〃绱㈠紩(渚嬪淇鎴栧垎鏋�)锛屼娇鐢ㄦ渶灏忓拰鏈�澶у瓧闀垮拰鍋滄瀛楁枃浠剁殑 榛樿鍏ㄦ枃鍙傛暟鍊硷紙闄ら潪浣犲彟澶栨寚瀹氾級閲嶅缓FULLTEXT绱㈠紩銆傝繖鏍蜂細瀵艰嚧鏌ヨ澶辫触銆�
鍑虹幇杩欎簺闂鏄洜涓哄彧鏈夋湇鍔″櫒鐭ラ亾杩欎簺鍙傛暟銆傚畠浠病鏈変繚瀛樺湪MyISAM绱㈠紩鏂囦欢涓�傚鏋滀綘淇敼浜嗘湇鍔″櫒涓殑鏈�灏忔垨鏈�澶у瓧闀挎垨鍋滄瀛楁枃浠讹紝瑕侀伩鍏嶈闂锛屼负鐢ㄤ簬mysqld鐨�myisamchk鎸囧畾鐩稿悓鐨�ft_min_word_len锛�ft_max_word_len鍜�ft_stopword_file鍊笺�備緥濡傦紝濡傛灉浣犲皢鏈�灏忓瓧闀胯缃负3,鍙互杩欐牱浣跨敤myisamchk鏉ヤ慨澶嶈〃锛�
shell> myisamchk --recover --ft_min_word_len=3 tbl_name.MYI
瑕佹兂纭繚myisamchk鍜屾湇鍔″櫒浣跨敤鐩稿悓鐨勫叏鏂囧弬鏁板�硷紝鍙互灏嗗畠浠斁鍏ラ�夐」鏂囦欢鐨�[mysqld]鍜�[myisamchk]灏忚妭锛�
[mysqld]
ft_min_word_len=3
[myisamchk]
ft_min_word_len=3
闄や簡myisamchk锛岃繕鍙互浣跨敤REPAIR TABLE銆�ANALYZE TABLE銆�OPTIMIZE TABLE鎴�ALTER TABLE銆傝繖浜涜鍙ョ敱鏈嶅姟鍣ㄦ墽琛岋紝鐭ラ亾瑕佷娇鐢ㄧ殑姝ｇ‘鐨勫叏鏂囧弬鏁板�笺��
myisamchk鏀寔涓嬮潰鐨勮〃妫�鏌ユ搷浣滈�夐」锛�
路 --check, -c
妫�鏌ヨ〃鐨勯敊璇�傚鏋滀綘涓嶆槑纭寚瀹氭搷浣滅被鍨嬮�夐」锛岃繖灏辨槸榛樿鎿嶄綔銆�
路 --check-only-changed, -C
鍙鏌ヤ笂娆℃鏌ュ悗鏈夊彉鏇寸殑琛ㄣ��
路 --extend-check, -e
闈炲父浠旂粏鍦版鏌ヨ〃銆傚鏋滆〃鏈夎澶氱储寮曞皢浼氱浉褰撴參銆傝閫夐」鍙兘鐢ㄤ簬鏋佺鎯呭喌銆備竴鑸儏鍐典笅锛屽彲浠ヤ娇鐢�myisamchk鎴�myisamchk --medium-check鏉ョ‘瀹氳〃鍐呮槸鍚︽湁閿欒銆�
濡傛灉浣犱娇鐢ㄤ簡--extend-check骞朵笖鏈夊厖鍒嗙殑鍐呭瓨锛屽皢key_buffer_size鍙橀噺璁剧疆涓鸿緝澶х殑鍊煎彲浠ヤ娇淇鎿嶄綔杩愯寰楁洿蹇��
路 --fast锛�-F
鍙鏌ユ病鏈夋纭叧闂殑琛ㄣ��
路 --force, -f
濡傛灉myisamchk鍙戠幇琛ㄥ唴鏈変换浣曢敊璇紝鍒欒嚜鍔ㄨ繘琛屼慨澶嶃�傜淮鎶ょ被鍨嬩笌--repair鎴�-r閫夐」鎸囧畾鐨勭浉鍚屻��
路 --information, -i
鎵撳嵃鎵�妫�鏌ヨ〃鐨勭粺璁′俊鎭��
路 --medium-check, -m
姣�--extend-check鏇村揩閫熷湴杩涜妫�鏌ャ�傚彧鑳藉彂鐜�99.99%鐨勯敊璇紝鍦ㄥぇ澶氭暟鎯呭喌涓嬪氨瓒冲浜嗐��
路 --read-only, -T
涓嶈灏嗚〃鏍囪涓哄凡缁忔鏌ャ�傚鏋滀綘浣跨敤myisamchk鏉ユ鏌ユ琚叾瀹冨簲鐢ㄧ▼搴忎娇鐢ㄨ�屾病鏈夐攣瀹氱殑琛ㄥ緢鏈夌敤锛屼緥濡傚綋鐢�--skip-external-locking閫夐」杩愯鏃惰繍琛�mysqld銆�
路 --update-state, -U
灏嗕俊鎭繚瀛樺湪.MYI鏂囦欢涓紝鏉ヨ〃绀鸿〃妫�鏌ョ殑鏃堕棿浠ュ強鏄惁琛ㄥ穿婧冧簡銆傝閫夐」鐢ㄦ潵鍏呭垎鍒╃敤--check-only-changed閫夐」锛屼絾濡傛灉mysqld鏈嶅姟鍣�姝ｄ娇鐢ㄨ〃骞朵笖姝ｇ敤--skip-external-locking閫夐」杩愯鏃朵笉搴斾娇鐢ㄨ閫夐」銆�
myisamchk鏀寔涓嬮潰鐨勮〃淇鎿嶄綔鐨勯�夐」锛�
路 --backup, -B
灏�.MYD鏂囦欢澶囦唤涓�file_name-time.BAK
路 --character-sets-dir=path
瀛楃闆嗗畨瑁呯洰褰曘�傚弬瑙�5.10.1鑺傦紝鈥滄暟鎹拰鎺掑簭鐢ㄥ瓧绗﹂泦鈥�銆�
路 --correct-checksum
绾犳琛ㄧ殑鏍￠獙鍜屼俊鎭��
路 --data-file-length=len, -D len
鏁版嵁鏂囦欢鐨勬渶澶ч暱搴�(褰撻噸寤烘暟鎹枃浠朵笖涓衡�滄弧鈥濇椂)銆�
路 --extend-check锛�-e
杩涜淇锛岃瘯鍥句粠鏁版嵁鏂囦欢鎭㈠姣忎竴琛屻�備竴鑸儏鍐典細鍙戠幇澶ч噺鐨勫瀮鍦捐銆備笉瑕佷娇鐢ㄨ閫夐」,闄ら潪浣犱笉椤惧悗鏋溿��
路 --force, -f
瑕嗙洊鏃х殑涓棿鏂囦欢(鏂囦欢鍚嶇被浼�tbl_name.TMD)锛岃�屼笉鏄腑鏂��
路 --keys-used=val, -k val
瀵逛簬myisamchk锛岃閫夐」鍊间负浣嶅�硷紝璇存槑瑕佹洿鏂扮殑绱㈠紩銆傞�夐」鍊肩殑姣忎竴涓簩杩涘埗浣嶅搴旇〃鐨勪竴涓储寮曪紝鍏朵腑绗竴涓储寮曞搴斾綅0銆傞�夐」鍊�0绂佺敤瀵规墍鏈夌储寮曠殑鏇存柊锛屽彲浠ヤ繚璇佸揩閫熸彃鍏ャ�傞�氳繃myisamchk -r鍙互閲嶆柊婵�娲昏绂佺敤鐨勭储寮曘��
路 --no-symlinks, -l
涓嶈窡闅忕鍙疯繛鎺ャ�傞�氬父myisamchk淇涓�涓鍙疯繛鎺ユ墍鎸囩殑琛ㄣ�傚湪MySQL 4.0涓閫夐」涓嶅瓨鍦紝鍥犱负浠�4.0寮�濮嬬殑鐗堟湰鍦ㄤ慨澶嶈繃绋嬩腑涓嶇Щ闄ょ鍙烽摼鎺ャ��
路 --parallel-recover, -p
涓�-r鍜�-n鐨勭敤娉曠浉鍚岋紝浣嗕娇鐢ㄤ笉鍚岀殑绾跨▼骞惰鍒涘缓鎵�鏈夐敭銆�杩欐槸alpha浠ｇ爜銆傝嚜宸辨壙鎷呴闄╋紒
路 --quick锛�-q
涓嶄慨鏀规暟鎹枃浠讹紝蹇�熻繘琛屼慨澶嶃�傚嚭鐜板鍒堕敭鏃讹紝浣犲彲浠ヤ袱娆℃寚瀹氳椤逛互寮哄埗myisamchk淇敼鍘熸暟鎹枃浠躲��
路 --recover, -r
鍙互淇鍑犱箮鎵�鏈変竴鍒囬棶棰橈紝闄ら潪鍞竴鐨勯敭涓嶅敮涓�鏃�(瀵逛簬MyISAM琛紝杩欐槸闈炲父涓嶅彲鑳界殑鎯呭喌)銆傚鏋滀綘鎯宠鎭㈠琛紝杩欐槸棣栧厛瑕佸皾璇曠殑閫夐」銆傚鏋�myisamchk鎶ュ憡琛ㄤ笉鑳界敤-r鎭㈠锛屽垯鍙兘灏濊瘯-o銆傚湪涓嶅お鍙兘鐨勬儏鍐典笅-r澶辫触锛屾暟鎹枃浠朵繚鎸佸畬濂斤級銆�
濡傛灉浣犳湁澶ч噺鍐呭瓨锛屼綘搴斿鍔�sort_buffer_size鐨勫��銆�
路 --safe-recover, -o
浣跨敤涓�涓�佺殑鎭㈠鏂规硶璇诲彇锛屾寜椤哄簭璇诲彇鎵�鏈夎锛屽苟鏍规嵁鎵惧埌鐨勮鏇存柊鎵�鏈夌储寮曟爲銆傝繖姣�-r鎱簺锛屼絾鏄兘澶勭悊-r涓嶈兘澶勭悊鐨勬儏鍐点�傝鎭㈠鏂规硶浣跨敤鐨勭‖鐩樼┖闂存瘮-r灏戙�備竴鑸儏鍐碉紝浣犲簲棣栧厛鐢�-r缁翠慨锛屽鏋�-r澶辫触鍒欑敤-o銆�
濡傛灉浣犳湁澶ч噺鍐呭瓨锛屼綘搴斿鍔�sort_buffer_size鐨勫��銆�
路 (OBSOLETE) --set-character-set=name
鍦�MySQL 5.1涓笉浣跨敤銆傚弬瑙�--set-collation銆�
路 --set-collation=name
鏇存敼鐢ㄦ潵鎺掑簭琛ㄧ储寮曠殑鏍″瑙勫垯銆傛牎瀵硅鍒欏悕鐨勭涓�閮ㄥ垎鍖呭惈瀛楃闆嗗悕銆�
路 --sort-recover, -n
寮哄埗myisamchk閫氳繃鎺掑簭鏉ヨВ鏋愰敭鍊硷紝鍗充娇涓存椂鏂囦欢灏嗗彲鑳藉緢澶с��
路 --tmpdir=path, -t path
鐢ㄤ簬淇濆瓨涓存椂鏂囦欢鐨勭洰褰曠殑璺緞銆傚鏋滄湭璁剧疆锛�myisamchk浣跨敤TMPDIR鐜鍙橀噺鐨勫�笺��tmpdir鍙互璁剧疆涓轰竴绯诲垪鐩綍璺緞锛岀敤浜庢垚鍔熷湴浠�round-robin妯″紡鍒涘缓涓存椂鏂囦欢銆傚湪Unix涓紝鐩綍鍚嶄箣闂寸殑闂撮殧瀛楃涓哄啋鍙�(鈥�:鈥�)锛屽湪Windows銆�NetWare鍜�OS/2涓负鍒嗗彿 (鈥�锛�鈥�)銆�
路 --unpack锛�-u
灏嗙敤myisampack鎵撳寘鐨勮〃瑙ｅ寘銆�
路 --analyze锛�-a
鍒嗘瀽閿�肩殑鍒嗗竷銆傝繖閫氳繃璁╄仈缁撲紭鍖栧櫒鏇村ソ鍦伴�夋嫨琛ㄥ簲璇ヤ互浠�涔堟搴忚仈缁撳拰搴旇浣跨敤鍝釜閿潵鏀硅繘鑱旂粨鎬ц兘銆傝鎯宠幏鍙栧垎甯冪浉鍏充俊鎭紝浣跨敤myisamchk --description --verbose tbl_name鍛戒护鎴�SHOW KEYS FROM tbl_name璇彞銆�
路 --description, -d
鎵撳嵃鍑哄叧浜庤〃鐨勬弿杩版�т俊鎭��
路 --set-auto-increment[=value], -A[value]
寮哄埗浠庣粰瀹氬�煎紑濮嬬殑鏂拌褰曚娇鐢�AUTO_INCREMENT缂栧彿(鎴栧鏋滃凡缁忔湁AUTO_INCREMENT鍊煎ぇ灏忕殑璁板綍锛屽簲浣跨敤鏇撮珮鍊�)銆傚鏋滄湭鎸囧畾value锛屾柊璁板綍鐨�AUTO_INCREMENT缂栧彿搴斾娇鐢ㄥ綋鍓嶈〃鐨勬渶澶у�煎姞涓�1銆�
路 --sort-index, -S
浠ヤ粠楂樺埌浣庣殑椤哄簭鎺掑簭绱㈠紩鏍戝潡銆傝繖灏嗕紭鍖栨悳瀵诲苟涓斿皢浣挎寜閿�肩殑琛ㄦ壂鎻忔洿蹇��
路 --sort-records=N, -R N
鏍规嵁涓�涓叿浣撶储寮曟帓搴忚褰曘�傝繖浣夸綘鐨勬暟鎹洿灞�閮ㄥ寲骞朵笖鍙互鍔犲揩鍦ㄨ閿笂鐨�SELECT鍜�ORDER BY鐨勮寖鍥存悳绱��傦紙绗竴娆″仛鎺掑簭鍙兘寰堟參锛侊級涓轰簡鎵惧嚭涓�寮犺〃鐨勭储寮曠紪鍙凤紝浣跨敤SHOW INDEX锛屽畠浠�myisamchk鐪嬭浠栦滑鐨勭浉鍚岄『搴忔樉绀轰竴寮犺〃鐨勭储寮曘�傜储寮曚粠1寮�濮嬬紪鍙枫��
濡傛灉閿病鏈夋墦鍖�(PACK_KEYS=0)锛屽畠浠殑闀垮害鐩稿悓锛屽洜姝ゅ綋myisamchk 鎺掑簭骞剁Щ鍔ㄨ褰曟椂锛屽彧瑕嗙洊绱㈠紩涓殑璁板綍鍋忕Щ閲忋�傚鏋滈敭宸茬粡鎵撳寘(PACK_KEYS=1)锛�myisamchk蹇呴』鍏堣В寮�鎵撳寘鐨勯敭鍧楋紝鐒跺悗閲嶆柊鍒涘缓绱㈠紩骞跺啀娆″皢閿潡鎵撳寘銆�(鍦ㄨ繖绉嶆儏鍐典笅锛岄噸鏂板垱寤虹储寮曟瘮鏇存柊姣忎釜绱㈠紩鐨勫亸绉婚噺瑕佸揩锛�銆�
5.9.5.5.聽myisamchk鍐呭瓨浣跨敤
褰撲綘杩愯myisamchk鏃跺唴瀛樺垎閰嶉噸瑕�.MYIsamchk浣跨敤鐨勫唴瀛樺ぇ灏忎笉鑳借秴杩囩敤-O閫夐」鎸囧畾鐨勩�傚鏋滀綘鎯冲姣忎竴涓ぇ琛ㄤ娇鐢�myisamchk锛屼綘蹇呴』棣栧厛纭畾浣犳兂浣跨敤澶氬皯鍐呭瓨銆備慨澶嶆椂鍙互浣跨敤鐨� 榛樿鍊煎彧鏈�3MB銆備娇鐢ㄦ洿澶х殑鍐呭瓨锛屽彲浠ヨmyisamchk宸ヤ綔寰楁洿蹇竴浜涖�備緥濡傦紝濡傛灉鏈夊ぇ浜�32MB鐨�RAM锛屽彲浠ヤ娇鐢ㄥ涓嬫墍绀洪�夐」(闄や簡浣犲彲浠ユ寚瀹氱殑鍏跺畠閫夐」)锛�
shell> myisamchk -O sort=16M -O key=16M -O read=1M -O write=1M ...
瀵逛簬澶у鏁版儏鍐碉紝浣跨敤-O sort=16M搴旇瓒冲浜嗐��
搴旇浣�myisamchk浣跨敤TMPDIR涓殑涓存椂鏂囦欢銆傚鏋�TMPDIR鎸囧悜鍐呭瓨鏂囦欢绯荤粺锛屼綘鍙兘寰堝鏄撳緱鍒板唴瀛樻孩鍑虹殑閿欒銆傚鏋滃彂鐢燂紝璁惧畾TMPDIR鎸囧悜鏈夋洿澶氱┖闂寸殑鏂囦欢绯荤粺鐩綍骞朵笖閲嶅惎myisamchk銆�
淇鏃�myisamchk涔熼渶瑕佸ぇ閲忕‖鐩樼┖闂达細
路 灏嗘暟鎹枃浠跺ぇ灏忔墿澶т竴鍊�(鍘熸枃浠跺拰澶嶅埗鏂囦欢)銆傚鏋滀綘鐢�--quick淇鍒欎笉闇�瑕佽绌洪棿锛涘湪杩欑鎯呭喌涓嬶紝鍙噸鏂板垱寤轰簡绱㈠紩鏂囦欢銆傚湪鏂囦欢绯荤粺涓婇渶瑕佺殑绌洪棿涓庡師鏁版嵁鏂囦欢鐩稿悓锛�(鍒涘缓鐨勫鍒舵枃浠朵綅浜庡師鏂囦欢鎵�鍦ㄧ洰褰曪級銆�
路 浠ｆ浛鏃х储寮曟枃浠剁殑鏂扮储寮曟枃浠舵墍鍗犵┖闂淬�備慨澶嶅伐浣滀竴寮�濮嬶紝灏卞鏃х储寮曟枃浠惰繘琛屼簡鍒犲噺锛屽洜姝や綘閫氬父浼氬拷鐣ヨ绌洪棿銆傚湪鏂囦欢绯荤粺涓婇渶瑕佺殑璇ョ┖闂翠笌鍘熸暟鎹枃浠剁浉鍚岋紒
路 褰撲娇鐢�--recover鎴�---sort-recover(浣嗕笉浣跨敤--safe-recover)鏃讹紝闇�瑕佹帓搴忕紦鍐插尯绌洪棿銆傞渶瑕佺殑绌洪棿涓猴細
路 (largest_key + row_pointer_length) * number_of_rows * 2
鍙互鐢�myisamchk -dv tbl_name妫�鏌ラ敭鍊煎拰row_pointer_length鐨勯暱搴︺�傚湪涓存椂鐩綍鍒嗛厤璇ョ┖闂�(鐢�TMPDIR鎴�--tmpdir=path鎸囧畾)銆�
濡傛灉鍦ㄤ慨澶嶈繃绋嬩腑鍑虹幇纭洏绌洪棿闂锛屽彲浠ヨ瘯璇曠敤--safe-recover浠ｆ浛--recover銆�
濡傛灉鐢�--skip-external-locking杩愯mysqld(鍦ㄦ煇浜涚郴缁熶笂涓� 榛樿璁剧疆锛屼緥濡�Linux)锛屽綋mysqld浣跨敤鏌愪釜琛ㄦ椂锛屼綘涓嶈兘鍙潬鍦颁娇鐢�myisamchk鏉ユ鏌ョ浉鍚岀殑琛ㄣ�傚綋浣犺繍琛�myisamchk鏃跺鏋滃彲浠ョ‘淇濇病鏈変汉鍦ㄩ�氳繃mysqld璁块棶琛紝鍦ㄥ紑濮嬫鏌ヨ〃鍓嶏紝浣犲彧闇�瑕佽繍琛�mysqladmin flush-tables銆傚鏋滀綘涓嶈兘淇濊瘉锛屽垯浣犳鏌ヨ〃鏃朵綘蹇呴』鍋滄mysqld銆傚鏋�mysqld鏇存柊琛ㄦ椂杩愯myisamchk锛屼綘鍙兘浼氳幏寰楄〃琚牬鍧忕殑璀﹀憡锛屽嵆浣夸簨瀹炲苟闈炲姝ゃ��
濡傛灉涓嶄娇鐢�--skip-external-locking锛屽彲浠ラ殢鏃朵娇鐢�myisamchk鏉ユ鏌ヨ〃銆傚綋妫�鏌ヨ〃鏃讹紝鎵�鏈夊皾璇曟洿鏂拌〃鐨勫鎴风灏嗙瓑寰咃紝鐩村埌myisamchk鍑嗗濂藉彲浠ョ户缁��
濡傛灉浣跨敤myisamchk鏉ヤ慨澶嶆垨浼樺寲琛紝蹇呴』纭繚mysqld鏈嶅姟鍣�娌℃湁鍦ㄤ娇鐢ㄨ琛�(濡傛灉浣犳浣跨敤--skip-external-locking閫夐」涔熼�傜敤)銆傚鏋滀笉鍏抽棴mysqld锛屽湪杩愯myisamchk涔嬪墠鑷冲皯搴旀墽琛�mysqladmin flush-tables銆傚鏋滄湇鍔″櫒鍜�myisamchk鍚屾椂璁块棶琛紝琛�鍙兘浼氳鐮村潖銆�
鏈妭鎻忚堪濡備綍妫�鏌ュ拰澶勭悊MySQL鏁版嵁搴撲腑鐨勬暟鎹牬鍧忋�傚鏋滆〃缁忓父琚牬鍧忥紝浣犲簲灏藉姏鎵惧埌鍘熷洜銆傚弬瑙�A.4.2鑺傦紝鈥滃鏋淢ySQL渚濈劧宕╂簝锛屽簲浣滀簺浠�涔堚��銆�
鍏充簬MyISAM琛ㄦ�庢牱浼氳鐮村潖鐨勮В閲婏紝鍙傝15.1.4鑺傦紝鈥淢yISAM琛ㄦ柟闈㈢殑闂鈥�銆�
鍦ㄦ墽琛屽穿婧冩仮澶嶆椂锛岀悊瑙ｅ湪涓�涓暟鎹簱涓殑姣忎竴涓�MyISAM琛�tbl_name瀵瑰簲鐨勫湪鏁版嵁搴撶洰褰曚腑鐨�3涓枃浠舵槸寰堥噸瑕佺殑锛�
|
鏂囦欢 |
鐩殑 |
|
tbl_name.frm |
瀹氫箟(鏍煎紡)鏂囦欢 |
|
tbl_name.MYD |
鏁版嵁鏂囦欢 |
|
tbl_name.MYI |
绱㈠紩鏂囦欢 |
杩�3绫绘枃浠剁殑姣忎竴绫婚兘鍙兘閬彈涓嶅悓褰㈠紡鐨勬崯鍧忥紝浣嗘槸闂鏈�甯稿彂鐢熷湪鏁版嵁鏂囦欢鍜岀储寮曟枃浠躲��
myisamchk閫氳繃涓�琛屼竴琛屽湴鍒涘缓涓�涓�鈥�.MYD鈥�鏁版嵁鏂囦欢鐨勫壇鏈潵宸ヤ綔锛屽畠閫氳繃鍒犻櫎鏃х殑鈥�.MYD 鏂囦欢骞朵笖閲嶅懡鍚嶆柊鏂囦欢鍒板師鏉ョ殑鏂囦欢鍚嶇粨鏉熶慨澶嶉樁娈点�傚鏋滀綘浣跨敤--quick锛�myisamchk涓嶅垱寤轰竴涓复鏃�鈥�.MYD鈥�鏂囦欢锛屽彧鏄亣瀹�鈥�.MYD鈥�鏂囦欢鏄纭殑骞朵笖浠呭垱寤轰竴涓柊鐨勭储寮曟枃浠讹紝涓嶆帴瑙�鈥�.MYD鈥�鏂囦欢锛岃繖鏄畨鍏ㄧ殑锛屽洜涓�myisamchk鑷姩妫�娴�鈥�.MYD鈥�鏂囦欢鏄惁鎹熷潖骞朵笖鍦ㄨ繖绉嶆儏鍐典笅锛屾斁寮冧慨澶嶃�備綘涔熷彲浠ョ粰myisamchk涓や釜--quick閫夐」銆傚湪杩欑鎯呭喌涓嬶紝myisamchk涓嶄細鍦ㄤ竴浜涢敊璇笂(璞￠噸澶嶉敭)鏀惧純锛岀浉鍙嶈瘯鍥鹃�氳繃淇敼鈥�.MYD鈥�鏂囦欢瑙ｅ喅瀹冧滑銆傞�氬父锛屽彧鏈夊湪澶皯鐨勭┖闂茬鐩樼┖闂翠笂瀹炴柦姝ｅ父淇锛屼娇鐢ㄤ袱涓�--quick閫夐」鏃舵墠鏈夌敤銆傚湪杩欑鎯呭喌涓嬶紝浣犺嚦灏戝簲璇ュ湪杩愯myisamchk鍓嶅仛杩涜澶囦唤銆�
路 myisamchk tbl_name
杩欐牱鑳芥壘鍑�99.99%鐨勯敊璇�傚畠涓嶈兘鎵惧嚭鐨勬槸浠呬粎娑夊強鏁版嵁鏂囦欢鐨勬崯鍧�(杩欏緢涓嶅父瑙�)銆傚鏋滄兂瑕佹鏌ヤ竴寮犺〃锛岄�氬父搴旇娌℃湁閫夐」鍦拌繍琛�myisamchk鎴栫敤-s鎴�--silent閫夐」鐨勪换浣曚竴涓��
路 myisamchk -m tbl_name
杩欐牱鑳芥壘鍑�99.99%鐨勯敊璇�傚畠棣栧厛妫�鏌ユ墍鏈夌储寮曟潯鐩殑閿欒骞堕�氳鎵�鏈夎銆傚畠杩樿绠楄鍐呮墍鏈夐敭鍊肩殑鏍￠獙鍜岋紝骞剁‘璁ゆ牎楠屽拰涓庣储寮曟爲鍐呴敭鐨勬牎楠屽拰鐩稿尮閰嶃��
路 myisamchk -e tbl_name
鍙互瀹屽叏褰诲簳鍦版鏌ユ暟鎹�(-e鎰忔�濇槸鈥滄墿灞曟鏌モ��)銆傚畠瀵规瘡涓�琛屽仛姣忎釜閿殑璇绘鏌ヤ互璇佸疄瀹冧滑纭疄鎸囧悜姝ｇ‘鐨勮銆傝繖鍦ㄤ竴涓湁寰堝閿殑澶ц〃涓婂彲鑳借姳寰堥暱鏃堕棿銆�myisamchk閫氬父灏嗗湪瀹冨彂鐜扮涓�涓敊璇互鍚庡仠姝��傚鏋滀綘鎯宠鑾峰緱鏇村鐨勪俊鎭紝鍙互澧炲姞--verbose(-v)閫夐」銆傝繖浣垮緱myisamchk缁х画涓�鐩村埌鏈�澶�20涓敊璇��
路 myisamchk -e -i tbl_name
璞″墠闈㈢殑鍛戒护涓�鏍凤紝浣嗘槸-i閫夐」鍛婅瘔myisamchk杩樻墦鍗板嚭涓�浜涚粺璁′俊鎭��
鍦ㄤ竴鑸娇鐢ㄤ腑锛屼竴涓畝鍗曠殑myisamchk锛堟病鏈夐櫎琛ㄥ悕浠ュ鐨勫弬鏁帮級灏辫冻澶熸鏌ヨ〃浜嗐��
5.9.5.8. 濡備綍淇琛�
鏈妭鎻忚堪濡備綍瀵�MyISAM琛ㄤ娇鐢�myisamchk(鎵╁睍鍚�.MYI鍜�.MYD)銆�
浣犺繕鍙互(骞朵笖搴旇锛屽鏋滃彲鑳�)浣跨敤CHECK TABLE鍜�REPAIR TABLE璇彞鏉ユ鏌ュ拰淇MyISAM琛ㄣ�傚弬瑙�13.5.2.3鑺傦紝鈥淐HECK TABLE璇硶鈥�鍜�13.5.2.6鑺傦紝鈥淩EPAIR TABLE璇硶鈥�銆�
涓�寮犳崯鍧忕殑琛ㄧ殑鐥囩姸閫氬父鏄煡璇㈡剰澶栦腑鏂苟涓旇兘鐪嬪埌涓嬭堪閿欒锛�
- 鈥�tbl_name.frm鈥�琚攣瀹氫笉鑳芥洿鏀广��
- 涓嶈兘鎵惧埌鏂囦欢鈥�tbl_name.MYI鈥�锛�Errcode锛�nnn锛夈��
- 鏂囦欢鎰忓缁撴潫銆�
- 璁板綍鏂囦欢琚瘉鍧忋��
- 浠庤〃澶勭悊鍣ㄥ緱鍒伴敊璇�nnn銆�
瑕佹兂寰楀埌閿欒鐩稿叧鐨勮缁嗕俊鎭紝浣犲彲浠ヨ繍琛�perror nnn锛屽叾涓�nnn涓洪敊璇紪鍙枫�備笅闈㈢殑绀轰緥鏄剧ず浜嗗浣曚娇鐢�perror鏉ユ壘鍒版渶甯哥敤閿欒缂栧彿锛堢敤琛ㄧ殑鏂瑰紡鎸囧嚭闂锛夌殑鍚箟锛�
shell> perror 126 127 132 134 135 136 141 144 145
126 = Index file is crashed / Wrong file format
127 = Record-file is crashed
132 = Old database file
134 = Record was already deleted (or record file crashed)
135 = No more room in record file
136 = No more room in index file
141 = Duplicate unique key or constraint on write or update
144 = Table is crashed and last repair failed
145 = Table was marked as crashed and should be repaired
璇锋敞鎰忛敊璇�135(璁板綍鏂囦欢涓病鏈夋洿澶氱殑绌洪棿)鍜岄敊璇�136(绱㈠紩鏂囦欢涓病鏈夋洿澶氱殑绌洪棿)涓嶆槸鍙互閫氳繃绠�鍗曚慨澶嶅彲浠ヤ慨澶嶇殑閿欒銆傚湪杩欑鎯呭喌涓嬶紝蹇呴』浣跨敤ALTER TABLE鏉ュ鍔�MAX_ROWS鍜�AVG_ROW_LENGTH琛ㄩ�夐」鍊硷細
ALTER TABLE tbl_name MAX_ROWS=xxx AVG_ROW_LENGTH=yyy;
濡傛灉浣犱笉鐭ラ亾褰撳墠鐨勮〃鐨勯�夐」鍊硷紝浣跨敤SHOW CREATE TABLE鎴�DESCRIBE鏉ユ煡璇�銆�
瀵逛簬鍏跺畠鐨勯敊璇紝浣犲繀椤讳慨澶嶈〃銆�myisamchk閫氬父鍙互妫�娴嬪拰淇澶у鏁伴棶棰樸��
淇杩囩▼鍖呮嫭鍥涗釜闃舵锛屾澶勫皢杩涜鎻忚堪銆傚紑濮嬩慨澶嶅墠锛屽簲杩涘叆鏁版嵁搴撶洰褰曞苟妫�鏌ヨ〃鏂囦欢鐨勮鍙�傚湪Unix涓紝纭繚瀹冧滑瀵逛簬杩愯mysqld鐨�鐢ㄦ埛鍙(浣犱篃搴斿彲璇伙紝鍥犱负浣犻渶瑕佽闂鏌ョ殑鏂囦欢)銆傚鏋滀綘闇�瑕佷慨鏀规枃浠讹紝浣犺繕蹇呴』鎷ユ湁鍐欒闂潈闄愩��
鐢�myisamchk淇琛ㄧ殑閫夐」鐨勬弿杩板弬瑙�5.9.5鑺傦紝鈥渕yisamchk锛歁yISAM琛ㄧ淮鎶ゅ疄鐢ㄥ伐鍏封��鐨勫墠鍑犺妭銆�
涓嬮潰鍑犺妭鍒楀嚭浜嗕笂杩板懡浠ゅけ璐ユ垨浣犳兂瑕佷娇鐢�myisamchk鎻愪緵鐨勬墿灞曠壒鎬х瓑鎯呭喌鐨勪緥瀛愩��
濡傛灉浣犺閫氳繃鍛戒护琛屾潵淇琛紝蹇呴』棣栧厛鍋滄mysqld鏈嶅姟鍣�銆傝娉ㄦ剰褰撲綘鍦ㄨ繙绋嬫湇鍔″櫒涓婅繍琛�mysqladmin shutdown鏃讹紝mysqladmin杩斿洖鍚庯紝mysqld鏈嶅姟鍣ㄥ皢浠嶇劧杩愯涓�浼氬効锛岀洿鍒板仠姝㈡墍鏈夋煡璇㈠苟灏嗘墍鏈夐敭娓呯┖鍒扮‖鐩樹笂銆�
闃舵1锛氭鏌ヤ綘鐨勮〃
濡傛灉浣犳湁寰堝鏃堕棿锛岃繍琛�myisamchk *.MYI鎴�myisamchk -e *.MYI銆備娇鐢�-s锛堟矇榛橈級閫夐」绂佹涓嶅繀瑕佺殑淇℃伅銆�
濡傛灉mysqld鏈嶅姟鍣ㄥ浜庡畷鏈虹姸鎬�锛屽簲浣跨敤--update-state閫夐」鏉ュ憡璇�myisamchk灏嗚〃鏍囪涓�'妫�鏌ヨ繃鐨�'銆�
浣犲繀椤诲彧淇閭ｄ簺myisamchk鎶ュ憡鏈夐敊璇殑琛ㄣ�傚杩欐牱鐨勮〃锛岀户缁埌闃舵2銆�
濡傛灉鍦ㄦ鏌ユ椂锛屼綘寰楀埌濂囨�殑閿欒(渚嬪out of memory閿欒)锛屾垨濡傛灉myisamchk宕╂簝锛屽埌闃舵3銆�
闃舵2锛氱畝鍗曞畨鍏ㄧ殑淇
娉ㄩ噴锛氬鏋滄兂鏇村揩鍦拌繘琛屼慨澶嶏紝褰撹繍琛�myisamchk鏃讹紝浣犲簲灏�sort_buffer_size鍜�Key_buffer_size鍙橀噺鐨勫�艰缃负鍙敤鍐呭瓨鐨勫ぇ绾�25%銆�
棣栧厛锛岃瘯璇�myisamchk -r -q tbl_name(-r -q鎰忓懗鐫�鈥滃揩閫熸仮澶嶆ā寮忊��)銆傝繖灏嗚瘯鍥句笉鎺ヨЕ鏁版嵁鏂囦欢鏉ヤ慨澶嶇储寮曟枃浠躲�傚鏋滄暟鎹枃浠跺寘鍚畠搴旀湁鐨勪竴鍒囧唴瀹瑰拰鎸囧悜鏁版嵁鏂囦欢鍐呮纭湴鐐圭殑鍒犻櫎杩炴帴锛岃繖搴旇绠＄敤骞朵笖琛ㄥ彲琚慨澶嶃�傚紑濮嬩慨澶嶄笅涓�寮犺〃銆傚惁鍒欙紝鎵ц涓嬪垪杩囩▼锛�
- 鍦ㄧ户缁墠瀵规暟鎹枃浠惰繘琛屽浠姐��
- 浣跨敤myisamchk -r tbl_name(-r鎰忓懗鐫�鈥滄仮澶嶆ā寮忊��)銆傝繖灏嗕粠鏁版嵁鏂囦欢涓垹闄や笉姝ｇ‘鐨勮褰曞拰宸茶鍒犻櫎鐨勮褰曞苟閲嶅缓绱㈠紩鏂囦欢銆�
- 濡傛灉鍓嶉潰鐨勬楠ゅけ璐ワ紝浣跨敤myisamchk --safe-recover tbl_name銆傚畨鍏ㄦ仮澶嶆ā寮忎娇鐢ㄤ竴涓�佺殑鎭㈠鏂规硶锛屽鐞嗗父瑙勬仮澶嶆ā寮忎笉琛岀殑灏戞暟鎯呭喌(浣嗘槸鏇存參)銆�
濡傛灉鍦ㄤ慨澶嶆椂锛屼綘寰楀埌濂囨�殑閿欒(渚嬪out of memory閿欒)锛屾垨濡傛灉myisamchk宕╂簝锛屽埌闃舵3銆�
闃舵3锛氬洶闅剧殑淇
鍙湁鍦ㄧ储寮曟枃浠剁殑绗竴涓�16K鍧楄鐮村潖锛屾垨鍖呭惈涓嶆纭殑淇℃伅锛屾垨濡傛灉绱㈠紩鏂囦欢涓㈠け锛屼綘鎵嶅簲璇ュ埌杩欎釜闃舵銆傚湪杩欑鎯呭喌涓嬶紝闇�瑕佸垱寤轰竴涓柊鐨勭储寮曟枃浠躲�傛寜濡備笅姝ラ鎿嶅仛锛�
- 鎶婃暟鎹枃浠剁Щ鍒板畨鍏ㄧ殑鍦版柟銆�
- 浣跨敤琛ㄦ弿杩版枃浠跺垱寤烘柊鐨�(绌�)鏁版嵁鏂囦欢鍜岀储寮曟枃浠讹細
- shell> mysql db_name
- mysql> SET AUTOCOMMIT=1;
- mysql> TRUNCATE TABLE tbl_name;
- mysql> quit
濡傛灉浣犵殑MySQL鐗堟湰娌℃湁TRUNCATE TABLE锛屽垯浣跨敤DELETE FROM tbl_name銆�
- 灏嗚�佺殑鏁版嵁鏂囦欢鎷疯礉鍒版柊鍒涘缓鐨勬暟鎹枃浠朵箣涓�傦紙涓嶈鍙槸灏嗚�佹枃浠剁Щ鍥炴柊鏂囦欢涔嬩腑锛涗綘瑕佷繚鐣欎竴涓壇鏈互闃叉煇浜涗笢瑗垮嚭閿欍�傦級
鍥炲埌闃舵2銆傜幇鍦�myisamchk -r -q搴旇宸ヤ綔浜嗐�傦紙杩欎笉搴旇鏄竴涓棤闄愬惊鐜級銆�
浣犺繕鍙互浣跨敤REPAIR TABLE tbl_name USE_FRM锛屽皢鑷姩鎵ц鏁翠釜绋嬪簭銆�
闃舵4锛氶潪甯稿洶闅剧殑淇
鍙湁.frm鎻忚堪鏂囦欢涔熺牬鍧忎簡锛屼綘鎵嶅簲璇ュ埌杈捐繖涓樁娈点�傝繖搴旇浠庢湭鍙戠敓杩囷紝鍥犱负鍦ㄨ〃琚垱寤轰互鍚庯紝鎻忚堪鏂囦欢灏变笉鍐嶆敼鍙樹簡銆�
- 浠庝竴涓浠芥仮澶嶆弿杩版枃浠剁劧鍚庡洖鍒伴樁娈�3銆備綘涔熷彲浠ユ仮澶嶇储寮曟枃浠剁劧鍚庡洖鍒伴樁娈�2銆傚鍚庤�咃紝浣犲簲璇ョ敤myisamchk -r鍚姩銆�
- 濡傛灉浣犳病鏈夎繘琛屽浠戒絾鏄‘鍒囧湴鐭ラ亾琛ㄦ槸鎬庢牱鍒涘缓鐨勶紝鍦ㄥ彟涓�涓暟鎹簱涓垱寤鸿〃鐨勪竴涓嫹璐濄�傚垹闄ゆ柊鐨勬暟鎹枃浠讹紝鐒跺悗浠庡叾浠栨暟鎹簱灏嗘弿杩版枃浠跺拰绱㈠紩鏂囦欢绉诲埌鐮村潖鐨勬暟鎹簱涓�傝繖鏍锋彁渚涗簡鏂扮殑鎻忚堪鍜岀储寮曟枃浠讹紝浣嗘槸璁�.MYD鏁版嵁鏂囦欢鐙嚜鐣欎笅鏉ヤ簡銆傚洖鍒伴樁娈�2骞朵笖灏濊瘯閲嶅缓绱㈠紩鏂囦欢銆�
涓轰簡缁勫悎纰庣墖璁板綍骞朵笖娑堥櫎鐢变簬鍒犻櫎鎴栨洿鏂拌褰曡�屾氮璐圭殑绌洪棿锛屼互鎭㈠妯″紡杩愯myisamchk锛�
shell> myisamchk -r tbl_name
浣犲彲浠ョ敤SQL鐨�OPTIMIZE TABLE璇彞浣跨敤鐨勭浉鍚屾柟寮忔潵浼樺寲琛紝OPTIMIZE TABLE鍙互淇琛ㄥ苟瀵归敭鍊艰繘琛屽垎鏋愶紝骞朵笖鍙互瀵圭储寮曟爲杩涜鎺掑簭浠ヤ究鏇村揩鍦版煡鎵鹃敭鍊笺�傚疄鐢ㄧ▼搴忓拰鏈嶅姟鍣ㄤ箣闂翠笉鍙兘浜や簰鎿嶄綔锛屽洜涓哄綋浣犱娇鐢�OPTIMIZE TABLE鏃讹紝鏈嶅姟鍣ㄥ仛鎵�鏈夌殑宸ヤ綔銆傚弬瑙�13.5.2.5鑺傦紝鈥淥PTIMIZE TABLE璇硶鈥�銆�
myisamchk杩樻湁寰堝鍏跺畠鍙敤鏉ユ彁楂樿〃鐨勬�ц兘鐨勯�夐」锛�
路 -S, --sort-index
路 -R index_num, --sort-records=index_num
路 -a, --analyze
鍏充簬杩欎簺閫夐」鐨勫畬鏁寸殑鎻忚堪锛屽弬瑙�5.9.5鑺傦紝鈥渕yisamchk锛歁yISAM琛ㄧ淮鎶ゅ疄鐢ㄥ伐鍏封��銆�
瀹氭湡瀵硅〃杩涜妫�鏌ヨ�岄潪绛夊埌闂鍑虹幇鍚庡啀妫�鏌ユ暟鎹簱琛ㄦ槸涓�涓ソ涓绘剰銆傛鏌ュ拰淇MyISAM琛ㄧ殑涓�涓柟寮忔槸浣跨敤CHECK TABLE鍜�REPAIR TABLE璇彞銆傚弬瑙�13.5.2.3鑺傦紝鈥淐HECK TABLE璇硶鈥�鍜�13.5.2.6鑺傦紝鈥淩EPAIR TABLE璇硶鈥�銆�
妫�鏌ヨ〃鐨勫彟涓�涓柟娉曟槸浣跨敤myisamchk銆備负缁存姢鐩殑锛屽彲浠ヤ娇鐢�myisamchk -s妫�鏌ヨ〃銆�-s閫夐」锛堢畝绉�--silent锛変娇myisamchk浠ユ矇榛樻ā寮忚繍琛岋紝鍙湁褰撻敊璇嚭鐜版椂鎵嶆墦鍗版秷鎭��
鍦ㄦ湇鍔″櫒鍚姩鏃舵鏌ヨ〃鏄竴涓ソ涓绘剰銆備緥濡傦紝鏃犺浣曟椂鏈哄櫒鍦ㄦ洿鏂板綋涓噸鏂板惎鍔ㄤ簡锛屼綘閫氬父闇�瑕佹鏌ユ墍鏈夊彲鑳藉彈褰卞搷鐨勮〃銆傦紙鍗斥�滈鏈熺殑鐮村潖浜嗙殑琛ㄢ�濓級銆傝鎯宠嚜鍔ㄦ鏌�MyISAM琛紝鐢�--myisam-recover閫夐」鍚姩鏈嶅姟鍣ㄣ��
涓�涓洿濂界殑娴嬭瘯灏嗘槸妫�鏌ユ渶鍚庝慨鏀规椂闂存瘮鈥�.pid鈥�鏂囦欢鏂扮殑琛ㄣ��
浣犺繕搴旇鍦ㄦ甯哥郴缁熸搷浣滄湡闂村畾鏈熸鏌ヨ〃銆傚湪MySQL AB锛屾垜浠繍琛屼竴涓�cron浠诲姟锛屾瘡鍛ㄤ竴娆℃鏌ユ墍鏈夐噸瑕佺殑琛紝浣跨敤鈥�crontab鈥�鏂囦欢涓繖鏍风殑琛岋細
35 0 * * 0 /path/to/myisamchk --fast --silent /path/to/datadir/*/*.MYI
鍙互鎵撳嵃鎹熷潖鐨勮〃鐨勪俊鎭紝浠ヤ究鎴戜滑鍦ㄩ渶瑕佹椂鑳藉妫�楠屽苟涓斾慨澶嶅畠浠��
澶氬勾浜嗘垜浠繕娌℃湁鍙戠幇(鐨勭‘鏄湡鐨�)閮芥病鏈変换浣曟剰澶栨崯鍧忕殑琛ㄦ椂(鐢变簬闄ょ‖浠舵晠闅滃鐨勫叾瀹冨師鍥犻�犳垚鎹熷潖鐨勮〃)锛屾瘡鍛ㄤ竴娆″鎴戜滑鏄冻澶熶簡銆�
鎴戜滑寤鸿鐜板湪寮�濮嬶紝浣犲鎵�鏈夋渶鍚�24灏忔椂鍐呰鏇存柊浜嗙殑琛ㄦ瘡鏅氶兘鎵цmyisamchk -s锛岀洿鍒颁綘鍙樺緱璞℃垜浠偅鏍蜂俊浠�MySQL銆�
涓�鑸儏鍐碉紝MySQL琛ㄥ緢灏戦渶瑕佺淮鎶ゃ�傚鏋滀綘鐢ㄥ姩鎬佸ぇ灏忕殑琛屾洿鏀�MyISAM琛�(鍚�VARCHAR銆�BLOB鎴�TEXT鍒楃殑琛�)鎴栨湁鍒犻櫎浜嗚澶氳鐨勮〃锛屼綘鍙兘鎯宠涓嶆椂鍦帮紙姣忔湀涓�娆★級鏁寸悊/缁勫悎琛ㄧ殑绌洪棿銆�
鍙互瀵规湁闂鐨勮〃鎵цOPTIMIZE TABLE鏉ヤ紭鍖栥�傛垨鑰呮槸锛屽鏋滃彲浠ュ仠涓�浼�mysqld鏈嶅姟鍣�锛岃繘鍏ユ暟鎹洰褰曪紝褰撴湇鍔″櫒鍋滄鏃朵娇鐢ㄨ鍛戒护锛�
shell> myisamchk -r -s --sort-index -O sort_buffer_size=16M */*.MYI
涓轰簡鑾峰緱鍏充簬涓�涓〃鐨勬弿杩版垨缁熻锛屼娇鐢ㄤ笅闈㈢殑鍛戒护锛�
路 myisamchk -d tbl_name
浠モ�滄弿杩版ā寮忊�濊繍琛�myisamchk锛岀敓鎴愯〃鐨勬弿杩般�傚鏋滅敤--skip-external-locking閫夐」鍚姩MySQL鏈嶅姟鍣紝myisamchk鍙互鎶ュ憡杩愯鐨勮〃琚洿鏂扮殑閿欒銆傜劧鑰岋紝鏃㈢劧鍦ㄦ弿杩版ā寮忎腑myisamchk涓嶆洿鏀硅〃锛屾病鏈変换浣曠牬鍧忔暟鎹殑椋庨櫓銆�
路 myisamchk -d -v tbl_name
涓轰簡鐢熸垚鏇村鍏充簬myisamchk姝ｅ湪鍋氫粈涔堢殑淇℃伅锛屽姞涓�-v鍛婅瘔瀹冧互鍐楅暱妯″紡杩愯銆�
路 myisamchk -eis tbl_name
浠呮樉绀鸿〃鐨勬渶閲嶈鐨勪俊鎭�傚洜涓哄繀椤昏鍙栨暣涓〃锛岃鎿嶄綔寰堟參銆�
路 myisamchk -eiv tbl_name
杩欑被浼� -eis锛屽彧鏄憡璇変綘姝ｅ湪鍋氫粈涔堛��
涓嬮潰涓鸿繖浜涘懡浠ょ殑杈撳嚭绀轰緥銆傚畠浠熀浜庡惈杩欎簺鏁版嵁鍜岀储寮曟枃浠跺ぇ灏忕殑琛細
-rw-rw-r-- 1 monty tcx 317235748 Jan 12 17:30 company.MYD
-rw-rw-r-- 1 davida tcx 96482304 Jan 12 18:35 company.MYM
myisamchk -d杈撳嚭绀轰緥锛�
MyISAM file: company.MYI
Record format: Fixed length
Data records: 1403698 Deleted blocks: 0
Recordlength: 226
table description:
Key Start Len Index Type
1 2 8 unique double
2 15 10 multip. text packed stripped
3 219 8 multip. double
4 63 10 multip. text packed stripped
5 167 2 multip. unsigned short
6 177 4 multip. unsigned long
7 155 4 multip. text
8 138 4 multip. unsigned long
9 177 4 multip. unsigned long
193 1 text
myisamchk -d -v 杈撳嚭绀轰緥锛�
MyISAM file: company
Record format: Fixed length
File-version: 1
Creation time: 1999-10-30 12:12:51
Recover time: 1999-10-31 19:13:01
Status: checked
Data records: 1403698 Deleted blocks: 0
Datafile parts: 1403698 Deleted data: 0
Datafile pointer (bytes): 3 Keyfile pointer (bytes): 3
Max datafile length: 3791650815 Max keyfile length: 4294967294
Recordlength: 226
table description:
Key Start Len Index Type Rec/key Root Blocksize
1 2 8 unique double 1 15845376 1024
2 15 10 multip. text packed stripped 2 25062400 1024
3 219 8 multip. double 73 40907776 1024
4 63 10 multip. text packed stripped 5 48097280 1024
5 167 2 multip. unsigned short 4840 55200768 1024
6 177 4 multip. unsigned long 1346 65145856 1024
7 155 4 multip. text 4995 75090944 1024
8 138 4 multip. unsigned long 87 85036032 1024
9 177 4 multip. unsigned long 178 96481280 1024
193 1 text
myisamchk -eis 杈撳嚭绀轰緥锛�
Checking MyISAM file: company
Key: 1: Keyblocks used: 97% Packed: 0% Max levels: 4
Key: 2: Keyblocks used: 98% Packed: 50% Max levels: 4
Key: 3: Keyblocks used: 97% Packed: 0% Max levels: 4
Key: 4: Keyblocks used: 99% Packed: 60% Max levels: 3
Key: 5: Keyblocks used: 99% Packed: 0% Max levels: 3
Key: 6: Keyblocks used: 99% Packed: 0% Max levels: 3
Key: 7: Keyblocks used: 99% Packed: 0% Max levels: 3
Key: 8: Keyblocks used: 99% Packed: 0% Max levels: 3
Key: 9: Keyblocks used: 98% Packed: 0% Max levels: 4
Total: Keyblocks used: 98% Packed: 17%
Records: 1403698 M.recordlength: 226
Packed: 0%
Recordspace used: 100% Empty space: 0%
Blocks/Record: 1.00
Record blocks: 1403698 Delete blocks: 0
Recorddata: 317235748 Deleted data: 0
Lost space: 0 Linkdata: 0
User time 1626.51, System time 232.36
Maximum resident set size 0, Integral resident set size 0
Non physical pagefaults 0, Physical pagefaults 627, Swaps 0
Blocks in 0 out 0, Messages in 0 out 0, Signals 0
Voluntary context switches 639, Involuntary context switches 28966
myisamchk -eiv 杈撳嚭绀轰緥锛�
Checking MyISAM file: company
Data records: 1403698 Deleted blocks: 0
- check file-size
- check delete-chain
block_size 1024:
index 1:
index 2:
index 3:
index 4:
index 5:
index 6:
index 7:
index 8:
index 9:
No recordlinks
- check index reference
- check data record references index: 1
Key: 1: Keyblocks used: 97% Packed: 0% Max levels: 4
- check data record references index: 2
Key: 2: Keyblocks used: 98% Packed: 50% Max levels: 4
- check data record references index: 3
Key: 3: Keyblocks used: 97% Packed: 0% Max levels: 4
- check data record references index: 4
Key: 4: Keyblocks used: 99% Packed: 60% Max levels: 3
- check data record references index: 5
Key: 5: Keyblocks used: 99% Packed: 0% Max levels: 3
- check data record references index: 6
Key: 6: Keyblocks used: 99% Packed: 0% Max levels: 3
- check data record references index: 7
Key: 7: Keyblocks used: 99% Packed: 0% Max levels: 3
- check data record references index: 8
Key: 8: Keyblocks used: 99% Packed: 0% Max levels: 3
- check data record references index: 9
Key: 9: Keyblocks used: 98% Packed: 0% Max levels: 4
Total: Keyblocks used: 9% Packed: 17%
- check records and index references
[LOTS OF ROW NUMBERS DELETED]
Records: 1403698 M.recordlength: 226 Packed: 0%
Recordspace used: 100% Empty space: 0% Blocks/Record: 1.00
Record blocks: 1403698 Delete blocks: 0
Recorddata: 317235748 Deleted data: 0
Lost space: 0 Linkdata: 0
User time 1639.63, System time 251.61
Maximum resident set size 0, Integral resident set size 0
Non physical pagefaults 0, Physical pagefaults 10580, Swaps 0
Blocks in 4 out 0, Messages in 0 out 0, Signals 0
Voluntary context switches 10604, Involuntary context switches 122798
涓嬮潰瑙ｉ噴myisamchk浜х敓鐨勪俊鎭殑绫诲瀷銆傗��keyfile鈥濇槸绱㈠紩鏂囦欢銆傗�滆褰曗�濆拰鈥滆鈥濇槸鍚屼箟璇嶃��
路 MyISAM file
ISAM(绱㈠紩)鏂囦欢鍚嶃��
路 File-version
ISAM鏍煎紡鐨勭増鏈�傚綋鍓嶆�绘槸2銆�
路 Creation time
鏁版嵁鏂囦欢鍒涘缓鐨勬椂闂淬��
路 Recover time
绱㈠紩/鏁版嵁鏂囦欢涓婃琚噸寤虹殑鏃堕棿銆�
路 Data records
鍦ㄨ〃涓湁澶氬皯璁板綍銆�
路 Deleted blocks
鏈夊灏戝垹闄ょ殑鍧椾粛鐒朵繚鐣欑潃绌洪棿銆備綘鍙互浼樺寲琛ㄤ互浣胯繖涓┖闂村噺鍒版渶灏忋�傚弬瑙�绗�7绔狅細浼樺寲銆�
路 Datafile parts
瀵瑰姩鎬佽褰曟牸寮忥紝杩欐寚鍑烘湁澶氬皯鏁版嵁鍧椼�傚浜庝竴涓病鏈夌鐗囩殑浼樺寲杩囩殑琛紝杩欎笌Data records鐩稿悓銆�
路 Deleted data
涓嶈兘鍥炴敹鐨勫垹闄ゆ暟鎹湁澶氬皯瀛楄妭銆備綘鍙互浼樺寲琛ㄤ互浣胯繖涓┖闂村噺鍒版渶灏忋�傚弬瑙�绗�7绔狅細浼樺寲銆�
路 Datafile pointer
鏁版嵁鏂囦欢鎸囬拡鐨勫ぇ灏忥紝浠ュ瓧鑺傝銆傚畠閫氬父鏄�2銆�3銆�4鎴�5涓瓧鑺傘�傚ぇ澶氭暟琛ㄧ敤2涓瓧鑺傜鐞嗭紝浣嗘槸鐩墠杩欒繕涓嶈兘浠�MySQL鎺у埗銆傚鍥哄畾琛紝杩欐槸涓�涓褰曞湴鍧�銆傚鍔ㄦ�佽〃锛岃繖鏄竴涓瓧鑺傚湴鍧�銆�
路 Keyfile pointer
绱㈠紩鏂囦欢鎸囬拡鐨勫ぇ灏忥紝浠ュ瓧鑺傝銆傚畠閫氬父鏄�1銆�2鎴�3涓瓧鑺傘�傚ぇ澶氭暟琛ㄧ敤 2 涓瓧鑺傜鐞嗭紝浣嗘槸瀹冭嚜鍔ㄧ敱MySQL璁＄畻銆傚畠鎬绘槸涓�涓潡鍦板潃銆�
路 Max datafile length
琛ㄧ殑鏁版嵁鏂囦欢(.MYD鏂囦欢)鑳藉鏈夊闀匡紝浠ュ瓧鑺傝銆�
路 Max keyfile length
琛ㄧ殑閿�兼枃浠�(.MYI鏂囦欢)鑳藉鏈夊闀匡紝浠ュ瓧鑺傝銆�
路 Recordlength
姣忎釜璁板綍鍗犲灏戠┖闂达紝浠ュ瓧鑺傝銆�
路 Record format
鐢ㄤ簬瀛樺偍琛ㄨ鐨勬牸寮忋�備笂闈㈢殑渚嬪瓙浣跨敤Fixed length銆�鍏朵粬鍙兘鐨勫�兼槸Compressed鍜�Packed銆�
路 table description
鍦ㄨ〃涓墍鏈夐敭鍊肩殑鍒楄〃銆傚姣忎釜閿紝缁欏嚭涓�浜涘簳灞傜殑淇℃伅锛�
o Key
璇ラ敭鐨勭紪鍙枫��
o Start
璇ョ储寮曢儴鍒嗕粠璁板綍鐨勫摢閲屽紑濮嬨��
o Len
璇ョ储寮曢儴鍒嗘槸澶氶暱銆傚浜庣揣鍑戠殑鏁板瓧锛岃繖搴旇鎬绘槸鍒楃殑鍏ㄩ暱銆傚瀛楃涓诧紝瀹冨彲浠ユ瘮绱㈠紩鐨勫垪鐨勫叏闀跨煭浜涳紝鍥犱负浣犲彲鑳戒細绱㈠紩鍒板瓧绗︿覆鍒楃殑鍓嶇紑銆�
o Index
unique鎴�multip锛�multiple)銆傝〃鏄庝竴涓�兼槸鍚﹁兘鍦ㄨ绱㈠紩涓瓨鍦ㄥ娆°��
o Type
璇ョ储寮曢儴鍒嗘湁浠�涔堟暟鎹被鍨嬨�傝繖鏄竴涓�packed銆�stripped鎴�empty閫夐」鐨�ISAM鏁版嵁绫诲瀷銆�
o Root
鏍圭储寮曞潡鐨勫湴鍧�銆�
o Blocksize
姣忎釜绱㈠紩鍧楃殑澶у皬銆傞粯璁ゆ槸1024锛屼絾鏄粠婧愮爜鏋勫缓MySQL鏃讹紝璇ュ�煎彲浠ュ湪缂栬瘧鏃舵敼鍙樸��
o Rec/key
杩欐槸鐢变紭鍖栧櫒浣跨敤鐨勭粺璁″�笺�傚畠鍛婅瘔瀵硅閿殑姣忎釜鍊兼湁澶氬皯鏉¤褰曘�傚敮涓�閿�绘槸鏈変竴涓�1鍊笺�傚湪涓�涓〃琚杞藉悗(鎴栧彉鏇村緢澶�)锛屽彲浠ョ敤myisamchk -a鏇存柊銆傚鏋滄牴鏈病琚洿鏂帮紝缁欏畾涓�涓�30鐨勯粯璁ゅ�笺��
鍦ㄤ笂闈緥瀛愮殑琛ㄤ腑锛岀9涓敭鏈変袱涓�table description琛屻�傝�呰鏄庡畠鏄湁2涓儴鍒嗙殑澶氶儴閿��
路 Keyblocks used
閿潡浣跨敤鐨勭櫨鍒嗘瘮鏄粈涔堛�傚綋鍦ㄤ緥瀛愪腑浣跨敤鐨勮〃鍒氬垰鐢�myisamchk閲嶆柊缁勭粐鏃讹紝璇ュ�奸潪甯搁珮(寰堟帴杩戠悊璁轰笂鐨勬渶澶у��)銆�
路 Packed
MySQL璇曞浘鐢ㄤ竴涓�氱敤鍚庣紑鍘嬬缉閿�傝繖鍙兘琚敤浜�CHAR/VARCHAR/DECIMAL鍒楃殑閿�傚浜庡乏閮ㄥ垎绫讳技鐨勯暱瀛楃涓诧紝鑳芥樉钁楀湴鍑忓皯浣跨敤绌洪棿銆傚湪涓婇潰鐨勭3涓緥瀛愪腑锛岀4涓敭鏄�10涓瓧绗﹂暱锛屽彲浠ュ噺灏�60%鐨勭┖闂淬��
路 Max levels
瀵逛簬璇ラ敭鐨�B鏍戞湁澶氭繁銆傛湁闀块敭鐨勫ぇ琛ㄦ湁杈冮珮鐨勫�笺��
路 Records
琛ㄤ腑鏈夊灏戣銆�
路 M.recordlength
骞冲潎璁板綍闀垮害銆傚浜庢湁瀹氶暱璁板綍鐨勮〃锛岃繖鏄噯纭殑璁板綍闀垮害锛屽洜涓烘墍鏈夎褰曠殑闀垮害鐩稿悓銆�
路 Packed
MySQL浠庡瓧绗︿覆鐨勭粨灏惧幓鎺夌┖鏍笺��Packed鍊艰〃鏄庤繖鏍峰仛杈惧埌鐨勮妭绾︾殑鐧惧垎姣斻��
路 Recordspace used
鏁版嵁鏂囦欢琚娇鐢ㄧ殑鐧惧垎姣斻��
路 Empty space
鏁版嵁鏂囦欢鏈浣跨敤鐨勭櫨鍒嗘瘮銆�
路 Blocks/Record
姣忎釜璁板綍鐨勫钩鍧囧潡鏁�(鍗筹紝涓�涓鐗囪褰曠敱澶氬皯涓繛鎺ョ粍鎴�)銆傚鍥哄畾鏍煎紡琛紝杩欐�绘槸1銆傝鍊煎簲璇ュ敖鍙兘淇濇寔鎺ヨ繎1.0銆傚鏋滃畠鍙樺緱澶ぇ锛屼綘鍙互閲嶆柊缁勭粐琛ㄣ�傚弬瑙�绗�7绔狅細浼樺寲銆�
路 Recordblocks
澶氬皯鍧�(閾炬帴)琚娇鐢ㄣ�傚鍥哄畾鏍煎紡锛屽畠涓庤褰曠殑涓暟鐩稿悓銆�
路 Deleteblocks
澶氬皯鍧�(閾炬帴)琚垹闄ゃ��
路 Recorddata
鍦ㄦ暟鎹枃浠朵腑浣跨敤浜嗗灏戝瓧鑺傘��
路 Deleted data
鍦ㄦ暟鎹枃浠朵腑澶氬皯瀛楄妭琚垹闄�(鏈娇鐢�)銆�
路 Lost space
濡傛灉涓�涓褰曡鏇存柊涓烘洿鐭殑闀垮害锛屽氨鎹熷け浜嗕竴浜涚┖闂淬�傝繖鏄墍鏈夎繖鏍风殑鎹熷け涔嬪拰锛屼互瀛楄妭璁°��
路 Linkdata
褰撲娇鐢ㄥ姩鎬佽〃鏍煎紡锛岃褰曠鐗囩敤鎸囬拡杩炴帴(姣忎釜4 锝� 7瀛楄妭)銆� Linkdata鎸囪繖鏍风殑鎸囬拡浣跨敤鐨勫唴瀛橀噺涔嬪拰銆�
濡傛灉涓�寮犺〃宸茬粡鐢�myisampack鍘嬬缉浜嗭紝myisamchk -d鎵撳嵃姣忎釜琛ㄥ垪鐨勯檮鍔犱俊鎭�傚浜庡畠鐨勪竴涓緥瀛愬強鍏跺惈涔夌殑鎻忚堪锛屽弬瑙�8.2鑺傦紝鈥渕yisampack锛氱敓鎴愬帇缂┿�佸彧璇籑yISAM琛ㄢ��銆�
榛樿鎯呭喌涓嬶紝MySQL浣跨敤cp1252(Latin1)瀛楃闆嗘牴鎹�Swedish/Finnish瑙勫垯杩涜鎺掑簭銆傝繖浜� 榛樿鍊奸�傚悎缇庡浗鍜岃タ娆уぇ閮ㄥ垎鍥藉銆�
鎵�鏈�MySQL浜岃繘鍒跺垎鍙戠増鐢�--with-extra-charsets=complex缂栬瘧鑰屾垚銆傚彲浠ュ湪鎵�鏈夋爣鍑嗙▼搴忎腑娣诲姞浠ｇ爜锛屼娇瀹冧滑鍙互澶勭悊latin1鍜屾墍鏈夊瀛楄妭浜岃繘鍒跺瓧绗﹂泦銆傚叾瀹冨瓧绗﹂泦鏍规嵁闇�瑕佷粠瀛楃闆嗗畾涔夋枃浠惰浇鍏ャ��
瀛楃闆嗙‘瀹氬湪鍚嶇О涓娇鐢ㄤ粈涔堝瓧绗︺�傚畠杩樼‘瀹氬浣曠敤SELECT璇彞鐨�ORDER BY鍜�GROUP BY瀛愬彞瀵瑰瓧绗︿覆杩涜鎺掑簭銆�
杩樺彲浠ュ湪鍚姩鏈嶅姟鍣ㄦ椂鐢�--default-character-set閫夐」鏇存敼瀛楃闆嗐�傚瓧绗﹂泦鍙互鐢�--with-charset=charset鍜�--with-extra-charsets=list-of-charsets | complex | all | none閫夐」鏉�configure锛屽瓧绗﹂泦閰嶇疆鏂囦欢鍒椾簬SHAREDIR/charsets/Index銆傚弬瑙�2.8.2鑺傦紝鈥滃吀鍨嬮厤缃�夐」鈥�銆�
杩樺彲浠ュ湪浣犲惎鍔ㄦ湇鍔″櫒鏃剁敤--default-collation閫夐」鏇存敼瀛楃闆� 鏍″瑙勫垯銆傛牎瀵硅鍒欏繀椤绘槸榛樿瀛楃闆嗙殑鍚堟硶鏍″瑙勫垯銆�(浣跨敤SHOW COLLATION璇彞鏉ョ‘瀹氭瘡涓瓧绗﹂泦浣跨敤鍝釜鏍″瑙勫垯锛�銆� 鍙傝2.8.2鑺傦紝鈥滃吀鍨嬮厤缃�夐」鈥�銆�
濡傛灉鍦ㄨ繍琛�MySQL鏃舵洿鏀瑰瓧绗﹂泦锛岃繕浼氭洿鏀规帓搴忛『搴忋�傜粨鏋滄槸浣犲繀椤诲鎵�鏈夎〃杩愯myisamchk -r -q --set-character-set=charset 锛屾垨姝ｇ‘鍦板绱㈠紩杩涜鎺掑簭銆�
褰撳鎴风杩炴帴MySQL鏈嶅姟鍣ㄦ椂锛屾湇鍔″櫒鍛婅瘔瀹㈡埛绔湇鍔″櫒鐨勯粯璁ゅ瓧绗﹂泦鏄粈涔堛�傚鎴风鍒囨崲鍒拌瀛楃闆嗚繘琛岃繛鎺ャ��
褰撹浆涔�SQL鏌ヨ鐨勫瓧绗︿覆鏃讹紝浣犲簲浣跨敤mysql_real_escape_string()銆�mysql_real_escape_string()绛変环浜庢棫鐨�mysql_escape_string()鍑芥暟锛屼笉鍚岀殑鏄畠浣跨敤MYSQL杩炴帴鍙ユ焺浣滀负绗竴涓弬鏁帮紝浠ヤ究杞箟瀛楃鏃跺彲浠ヤ娇鐢ㄧ浉搴旂殑瀛楃闆嗐��
濡傛灉瀹㈡埛绔殑缂栬瘧璺緞涓嶆槸鏈嶅姟鍣ㄧ殑瀹夎鐩綍锛屽苟涓旈厤缃�MySQL鏃舵病鏈夊寘鎷�MySQL浜岃繘鍒朵腑鐨勬墍鏈夊瓧绗﹂泦锛屽鏋滄湇鍔″櫒杩愯鏃堕渶瑕佷娇鐢ㄥ鎴风璁剧疆鐨勫瓧绗﹂泦涔嬪鐨勫叾瀹冨瓧绗﹂泦锛屼綘蹇呴』鍛婅瘔瀹㈡埛绔粠鍝噷鎵惧埌鏇村鐨勫瓧绗﹂泦銆�
鍙互鎸囧畾--character-sets-dir閫夐」鏉ヨ〃绀哄姩鎬�MySQL瀛楃闆嗘墍淇濆瓨鐩綍鐨勮矾寰勩�備緥濡傦紝鍙互灏嗕笅闈㈢殑琛屾斁鍏ラ�夐」鏂囦欢涓細
[client]
character-sets-dir=/usr/local/mysql/share/mysql/charsets
浣犲彲浠ュ己鍒跺鎴风浣跨敤涓撶敤瀛楃闆嗭細
[client]
default-character-set=charset
浣嗘槸涓�鑸儏鍐典笉闇�瑕併��
鍦�MySQL 5.1涓�,鍒嗗埆鎸囧畾瀛楃闆嗗拰 鏍″瑙勫垯銆傝繖璇存槑濡傛灉浣犳兂浣跨敤German鎺掑簭椤哄簭锛屼綘搴旈�夋嫨latin1 瀛楃闆嗗拰latin1_german1_ci鎴�latin1_german2_ci鏍″瑙勫垯銆備緥濡傦紝瑕佺敤latin1_german1_ci鏍″瑙勫垯鍚姩鏈嶅姟鍣紝搴斾娇鐢�--character-set-server=latin1鍜�--collation-server=latin1_german1_ci閫夐」銆�
鍏充簬杩欎袱绉嶆牎瀵硅鍒欑殑涓嶅悓涔嬪锛屽弬瑙�10.10.2鑺傦紝鈥滆タ娆у瓧绗﹂泦鈥�銆�
瑕佹兂鍦ㄥ惎鍔�mysqld鍚庣敤鍏蜂綋璇█鏄剧ず閿欒娑堟伅锛屼娇鐢�--language鎴�-L閫夐」銆傞�夐」鍊煎彲浠ヤ负璇█鍚嶇О鎴栭敊璇秷鎭枃浠剁殑鍏ㄨ矾寰勩�備緥濡傦細
shell> mysqld --language=swedish
鎴栵細
shell> mysqld --language=/usr/local/share/swedish
璇█鍚嶅簲涓哄皬鍐欍��
璇█鏂囦欢浣嶄簬(榛樿鎯呭喌涓�)MySQL鍩烘湰鐩綍鐨�share/LANGUAGE鐩綍涓嬨��
瑕佹兂鏇存敼閿欒娑堟伅鏂囦欢锛屽簲缂栬緫errmsg.txt鏂囦欢锛岀劧鍚庢墽琛屼笅闈㈢殑鍛戒护浠ョ敓鎴�errmsg.sys鏂囦欢锛�
shell> comp_err errmsg.txt errmsg.sys
濡傛灉浣犲崌绾у埌鏂扮増鏈殑MySQL锛岃浣忎娇鐢ㄦ柊鐨�errmsg.txt鏂囦欢鏉ラ噸鏂版洿鏀广��
5.10.3. 娣诲姞鏂扮殑瀛楃闆�
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5. /*
6. * This comment is parsed by configure to create ctype.c,
7. * so don't change it unless you know what you are doing.
8. *
9. * .configure. number_MYSET=MYNUMBER
10. * .configure. strxfrm_multiply_MYSET=N
11. * .configure. mbmaxlen_MYSET=N
12. */
configure绋嬪簭浣跨敤璇ユ敞閲婅嚜鍔ㄥ皢瀛楃闆嗗寘鎷繘MySQL搴撲腑銆�
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- my_strncoll_MYSET()
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to_lower['A'] should contain 'a'
to_upper['a'] should contain 'A'
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#define _U 01 /* Uppercase */
#define _L 02 /* Lowercase */
#define _N 04 /* Numeral (digit) */
#define _S 010 /* Spacing character */
#define _P 020 /* Punctuation */
#define _C 040 /* Control character */
#define _B 0100 /* Blank */
#define _X 0200 /* heXadecimal digit */
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_U + _X = 01 + 0200 = 0201
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shell> mysqlbinlog log-file | mysql -h server_name
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鍐欏叆浜岃繘鍒舵棩蹇楁枃浠跺拰浜岃繘鍒舵棩蹇楃储寮曟枃浠剁殑鏂规硶涓庡啓鍏�MyISAM琛ㄧ浉鍚屻�傚弬瑙�A.4.3鑺傦紝鈥淢ySQL澶勭悊纾佺洏婊＄殑鏂瑰紡鈥�銆�
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璇彞鎵ц瀹屽苟涓旀墍鏈夐攣閲婃斁鍚庤鍏ユ參鏌ヨ鏃ュ織銆傝褰曢『搴忓彲浠ヤ笌鎵ц椤哄簭涓嶇浉鍚屻��
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褰撳惎鐢ㄦ棩蹇椾娇鐢�MySQL鏃讹紝浣犲彲鑳芥兂瑕佷笉鏃跺湴澶囦唤骞跺垹闄ゆ棫鐨勬棩蹇楁枃浠讹紝骞跺憡璇�MySQL寮�濮嬭鍏ユ柊鏂囦欢銆傚弬瑙�5.9.1鑺傦紝鈥滄暟鎹簱澶囦唤鈥�銆�
鍦� Linux (Redhat)鐨勫畨瑁呬笂锛屼綘鍙负姝や娇鐢�mysql-log-rotate鑴氭湰銆傚鏋滀綘浠�RPM鍒嗗彂瀹夎MySQL锛岃剼鏈簲璇ヨ嚜鍔ㄨ瀹夎浜嗐��
鍦ㄥ叾瀹冪郴缁熶笂锛屼綘蹇呴』鑷繁瀹夎鐭剼鏈紝浣犲彲浠�cron绛夊叆鎵嬪鐞嗘棩蹇楁枃浠躲��
浣犲彲浠ラ�氳繃mysqladmin flush-logs鎴�SQL璇彞FLUSH LOGS鏉ュ己鍒�MySQL寮�濮嬩娇鐢ㄦ柊鐨勬棩蹇楁枃浠躲��
鏃ュ織娓呯┖鎿嶄綔鍋氫笅鍒椾簨鎯咃細
- 濡傛灉浣跨敤鏍囧噯鏃ュ織(--log)鎴栨參鏌ヨ鏃ュ織(--log-slow-queries)锛屽叧闂苟閲嶆柊鎵撳紑鏃ュ織鏂囦欢銆�(榛樿涓�mysql.log鍜�`hostname`-slow.log)銆�
- 濡傛灉浣跨敤鏇存柊鏃ュ織(--log-update)鎴栦簩杩涘埗鏃ュ織(--log-bin)锛屽叧闂棩蹇楀苟涓旀墦寮�鏈夋洿楂樺簭鍒楀彿鐨勬柊鏃ュ織鏂囦欢銆�
濡傛灉浣犲彧浣跨敤鏇存柊鏃ュ織锛屼綘鍙渶瑕侀噸鏂板懡鍚嶆棩蹇楁枃浠讹紝鐒跺悗鍦ㄥ浠藉墠娓呯┖鏃ュ織銆備緥濡傦紝浣犲彲浠ヨ繖鏍峰仛锛�
shell> cd mysql-data-directory
shell> mv mysql.log mysql.old
shell> mysqladmin flush-logs
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路 --log=path
路 --log-bin=path
路 --log-update=path
路 --log-error=path
路 --bdb-logdir=path
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路 --tmpdir=path
路 --bdb-tmpdir=path
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濡傛灉鍦ㄤ笉鍚岀殑浣嶇疆鏈夊涓�MySQL鐨勫畨瑁咃紝涓�鑸儏鍐靛彲浠ョ敤--basedir=path閫夐」涓烘瘡涓湇鍔″櫒鎸囧畾鍩烘湰瀹夎鐩綍锛屼娇姣忎釜鏈嶅姟鍣ㄤ娇鐢ㄤ笉鍚岀殑鏁版嵁鐩綍銆佹棩蹇楁枃浠跺拰PID鏂囦欢銆傦紙鎵�鏈夎繖浜涘�肩殑 榛樿鍊肩浉瀵逛簬鏍圭洰褰曟潵纭畾锛夈�傞偅鏍风殑璇濓紝 浣犲敮涓�闇�瑕佹寚瀹氱殑鍏跺畠閫夐」鏄�--socket鍜�--port閫夐」銆備緥濡傦紝鍋囧浣跨敤tar鏂囦欢浜岃繘鍒跺垎鍙戠増瀹夎涓嶅悓鐨�MySQL鐗堟湰銆傝繖浜涘畨瑁呭湪涓嶅悓鐨勪綅缃紝鍥犳鍙互浣跨敤鍚勪釜瀹夎鏈嶅姟鍣ㄧ浉搴旂殑鏍圭洰褰曚腑鐨�bin/mysqld_safe鍛戒护鏉�鍚姩鏈嶅姟鍣ㄣ��mysqld_safe纭畾姝ｇ‘鐨�--basedir閫夐」浼犻�掔粰mysqld锛屼綘浠呴渶瑕佷负mysqld_safe鎸囧畾--socket鍜�--port閫夐」銆�
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鍋囪浣犳兂瑕佸湪绔彛3307浣跨敤鏁版嵁鐩綍C:\mydata1杩愯mysqld锛屽苟涓旀兂鍦ㄧ鍙�3308浣跨敤鏁版嵁鐩綍C:\mydata1杩愯mysqld-max銆�(瑕佹兂杩欐牱鍋氾紝鍚姩鏈嶅姟鍣ㄤ箣鍓嶈纭繚锛屾瘡涓暟鎹洰褰曞瓨鍦ㄥ苟涓旀湁鑷繁鐨�mysql鏁版嵁搴撴嫹璐濓紝瀹冨寘鍚� 鎺堟潈琛級銆�
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[mysqld]
datadir = C:/mydata1
port = 3307
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mysqld]
datadir = C:/mydata2
port = 3308
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C:\> C:\mysql\bin\mysqld --defaults-file=C:\my-opts1.cnf
C:\> C:\mysql\bin\mysqld-max --defaults-file=C:\my-opts2.cnf
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C:\> C:\mysql\bin\mysqladmin --port=3307 shutdown
C:\> C:\mysql\bin\mysqladmin --port=3308 shutdown
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[mysqld]
datadir = C:/mydata1
port = 3307
enable-named-pipe
socket = mypipe1
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C:\> C:\mysql\bin\mysqld-nt --defaults-file=C:\my-opts1.cnf
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路 濡傛灉浣犲湪--install閫夐」鍚庢寚瀹氫簡鏈嶅姟鍚嶏紝鏈嶅姟鍣ㄥ拷鐣�[mysqld]閫夐」缁勶紝浠庡叿鏈夌浉鍚屽悕鐨勭粍涓鍙栭�夐」浣滀负鏈嶅姟鍚嶃�傛湇鍔″櫒浠庢爣鍑嗛�夐」鏂囦欢涓鍙栭�夐」銆�
路 濡傛灉浣犲湪鏈嶅姟鍚嶅悗闈㈡寚瀹氫竴涓�--defaults-file閫夐」锛屾湇鍔″櫒蹇界暐鏍囧噯閫夐」鏂囦欢锛屽彧浠庡懡鍚嶇殑鏂囦欢鐨�[mysqld]缁勮鍙栭�夐」銆�
娉�閲婏細MySQL 4.0.17涔嬪墠锛屽彧鏈変娇鐢ㄩ粯璁ゆ湇鍔″悕锛�MySQL锛�瀹夎鐨勪竴涓湇鍔″櫒鎴栦娇鐢ㄦ湇鍔″悕mysqld鏄惧紡瀹夎鐨勪竴涓湇鍔″櫒浠庢爣鍑嗛�夐」鏂囦欢璇�[mysqld]缁勩�傚埌4.0.17鏃讹紝濡傛灉鏈嶅姟鍣ㄨ鏍囧噯閫夐」鏂囦欢锛屽垯瀹冧滑鍧囪[mysqld]缁勶紝鍗充娇瀹冧滑瀹夎鏃朵娇鐢ㄤ簡鍙︿竴涓湇鍔″悕銆傝繖鏍峰厑璁镐綘涓洪�夐」浣跨敤[mysqld]缁勶紝鐢ㄤ簬鎵�鏈�MySQL鏈嶅姟鍣紝骞跺皢鏍规嵁姣忎釜鏈嶅姟鍣ㄥ懡鍚嶇殑閫夐」缁勭敤浜庤鏈嶅姟鍣�锛屽嵆浣跨敤閭ｄ釜鏈嶅姟鍚嶅畨瑁呯殑鏈嶅姟鍣ㄣ��
鏍规嵁鍓嶉潰鍙欒堪锛屼綘鍙互閫氳繃鍑犱釜鏂规硶鏉ヨ缃涓湇鍔″櫒銆備笅闈㈢殑璇存槑鎻忚堪浜嗕竴浜涚ず渚嬨�傚湪灏濊瘯涔嬪墠锛屽簲纭繚浣犻鍏堝叧闂苟涓斿嵏杞戒簡鎵�鏈夊凡鏈夌殑MySQL鏈嶅姟鍣ㄣ��
路 鏂规硶1锛�鍦ㄤ竴涓爣鍑嗛�夐」鏂囦欢涓寚瀹氭墍鏈夋湇鍔″櫒閫夐」銆傝鎯宠繖鏍峰仛锛屼负姣忎釜鏈嶅姟鍣ㄤ娇鐢ㄤ笉鍚岀殑鏈嶅姟鍚嶃�傚亣璁句綘鎯充娇鐢ㄦ湇鍔″悕mysqld1杩愯4.1.8鐗堢殑mysqld-nt骞�浣跨敤鏈嶅姟鍚�mysqld2杩愯5.1.2-alpha鐗堢殑mysqld-nt銆傚湪杩欑鎯呭喌涓嬶紝浣犲彲浠ヤ负4.1.8浣跨敤[mysqld1]缁勶紝涓�5.1.2-alpha浣跨敤[mysqld2]缁勩�備緥濡傦紝浣犲彲浠ヨ薄杩欐牱寤虹珛 C:\my.cnf鏂囦欢锛�
路 # options for mysqld1 service
路 [mysqld1]
路 basedir = C:/mysql-4.1.8
路 port = 3307
路 enable-named-pipe
路 socket = mypipe1
路
路 # options for mysqld2 service
路 [mysqld2]
路 basedir = C:/mysql-5.1.2-alpha
路 port = 3308
路 enable-named-pipe
路 socket = mypipe2
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C:\> C:\mysql-4.1.8\bin\mysqld-nt --install mysqld1
C:\> C:\mysql-5.1.2-alpha\bin\mysqld-nt --install mysqld2
涓轰簡鍚姩鏈嶅姟鍣紝浣跨敤鏈嶅姟绠＄悊鍣紝鎴栫敤甯︽湁閫傚綋鐨勬湇鍔″悕鐨�NET START锛�
C:\> NET START mysqld1
C:\> NET START mysqld2
瑕佹兂鍋滄鏈嶅姟锛屼娇鐢ㄦ湇鍔＄鐞嗗櫒锛屾垨鐢ㄥ甫鏈夐�傚綋鐨勬湇鍔″悕鐨�NET STOP锛�
C:\> NET STOP mysqld1
C:\> NET STOP mysqld2
路 鏂规硶2锛�涓烘瘡涓湇鍔″櫒鐢ㄤ笉鍚岀殑鏂囦欢鎸囧畾閫夐」锛屽綋浣犲畨瑁呮湇鍔℃椂浣跨敤--defaults-file鍛婅瘔姣忎釜鏈嶅姟鍣ㄤ娇鐢ㄤ粈涔堟枃浠躲�傛鏃讹紝姣忎釜鏂囦欢搴旂敤涓�涓�[mysqld]缁勫垪鍑洪�夐」銆�
浣跨敤杩欑鏂规硶涓�4.1.8鐗堟湰鐨�mysqld-nt鎸囧畾閫夐」锛屽簲璞¤繖鏍峰垱寤轰竴涓�C:\my-opts1.cnf鏂囦欢锛�
[mysqld]
basedir = C:/mysql-4.1.8
port = 3307
enable-named-pipe
socket = mypipe1
瀵逛簬5.1.2-alpha鐗堢殑mysqld-nt锛岃薄杩欐牱鍒涘缓涓�涓�C:\my-opts2.cnf鏂囦欢锛�
[mysqld]
basedir = C:/mysql-5.1.2-alpha port = 3308
enable-named-pipe
socket = mypipe2
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C:\> C:\mysql-4.1.8\bin\mysqld-nt -- installmysqld1
--defaults-file=C:\my-opts1.cnf
C:\> C:\mysql-5.1.2-alpha\bin\mysqld-nt -- installmysqld2
--defaults-file=C:\my-opts2.cnf
褰撲綘浣滀负鏈嶅姟瀹夎涓�涓�MySQL鏈嶅姟鍣ㄦ椂锛岃鎯充娇鐢�--defaults-file閫夐」锛屼綘蹇呴』鍦ㄦ閫夐」涔嬪墠鍔犳湇鍔″悕銆�
瀹夎鏈嶅姟鍚庯紝鎸夌収涓庡墠闈㈢殑绀轰緥鐩稿悓鐨勬柟娉曞惎鍔ㄥ拰鍋滄銆�
瑕佹兂鍗歌浇澶氫釜鏈嶅姟锛屽姣忎釜鏈嶅姟浣跨敤mysqld --remove锛屽湪--remove閫夐」鍚庢寚瀹氭湇鍔″悕銆傚鏋滄湇鍔″悕鏄� 榛樿鐨�(MySQL)锛屼綘鍙互涓嶆寚瀹氥��
鍦�Unix涓繍琛屽涓湇鍔″櫒鏈�瀹规槗鐨勬柟娉曟槸浣跨敤涓嶅悓鐨�TCP/IP绔彛s鍜�Unix濂楁帴瀛楁枃浠剁紪璇戯紝鍥犳姣忎釜瀹炰緥鍦ㄤ笉鍚岀殑缃戠粶鎺ュ彛渚﹀惉銆傚彟澶栵紝姣忎釜瀹夎搴斿湪涓嶅悓鐨勫熀纭�鐩綍涓紪璇戯紝閭ｅ皢鑷姩涓轰綘鐨勬瘡涓湇鍔″櫒浜х敓浣跨敤涓嶅悓鐨勭紪璇戣繘鏉ョ殑鏁版嵁鐩綍銆佹棩蹇楁枃浠跺拰PID鏂囦欢浣嶇疆銆�
鍋囪涓�涓幇鏈夌殑4.1.8鐗堟湰鏈嶅姟鍣ㄩ厤缃负榛樿TCP/IP绔彛鍙�(3306)鍜�Unix濂楁帴瀛楁枃浠�(/tmp/mysql.sock)銆傝鎯抽厤缃竴涓柊鐨�5.1.2-alpha鐗堢殑鏈嶅姟鍣ㄦ潵浣跨敤涓嶅悓鐨勬搷浣滃弬鏁帮紝浣跨敤涓�涓�configure鍛戒护锛屽ぇ姒傝薄杩欐牱浣跨敤锛�
shell> ./configure --with-tcp-port=port_number \
--with-unix-socket-path=file_name \
--prefix=/usr/local/mysql-5.1.2-alpha
杩欓噷锛�port_number鍜�file_name蹇呴』涓嶅悓浜庨粯璁�TCP/IP绔彛鍙峰拰Unix濂楁帴瀛楁枃浠惰矾寰勫悕锛屽苟涓�--prefix鍊煎簲鎸囧畾涓�涓笉鍚屼簬鐜版湁MySQL瀹夎鐩綍鐨勫畨瑁呯洰褰曘��
濡傛灉浣犳湁涓�涓�MySQL鏈嶅姟鍣ㄦ渚﹀惉涓�涓粰瀹氱殑绔彛鍙凤紝浣犲彲浠ヤ娇鐢ㄤ笅闈㈢殑鍛戒护鏉ユ壘鍑洪拡瀵逛竴浜涢噸瑕侀厤缃彉閲忓畠浣跨敤浜嗛偅浜涙搷浣滃弬鏁帮紝鍖呮嫭鍩虹鐩綍鍜�Unix濂楁帴瀛楁枃浠跺悕锛�
shell> mysqladmin --host=host_name --port=port_number variables
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璇锋敞鎰忥紝濡傛灉浣犳寚瀹�localhost浣滀负涓�涓富鏈哄悕锛�mysqladmin榛樿浣跨敤Unix濂楁帴瀛楁枃浠惰繛鎺ワ紝鑰屼笉鏄�TCP/IP銆備粠 MySQL 4.1寮�濮嬶紝閫氳繃--protocol= TCP | SOCKET | PIPE | MEMORY}閫夐」锛屼綘鍙互鏄剧ず鍦版寚瀹氳繛鎺ュ崗璁��
濡傛灉鍙槸鐢ㄤ竴涓笉鍚岀殑Unix濂楁帴瀛楁枃浠跺拰TCP/IP绔彛鍙峰惎鍔紝涓嶅繀缂栬瘧鏂扮殑MySQL鏈嶅姟鍣ㄣ�傝繕鍙互鍦ㄨ繍琛屾椂鎸囧畾杩欎簺鍊笺�傝繖鏍峰仛鐨勪竴涓柟娉曟槸浣跨敤鍛戒护琛岄�夐」锛�
shell> mysqld_safe --socket=file_name --port=port_number
瑕佸惎鍔ㄧ浜屼釜鏈嶅姟鍣紝鎻愪緵涓嶅悓鐨�--socket鍜�--port閫夐」鍊硷紝骞朵笖浼犻�掍竴涓�--datadir=path閫夐」缁�mysqld_safe锛屼互渚挎湇鍔″櫒浣跨敤涓�涓笉鍚岀殑鏁版嵁鐩綍銆�
杈惧埌鐩镐技鏁堟灉鐨勫彟涓�涓柟娉曟槸浣跨敤鐜鍙橀噺鏉ヨ缃� Unix濂楁帴瀛楁枃浠跺悕鍜�TCP/IP绔彛鍙凤細
shell> MYSQL_UNIX_PORT=/tmp/mysqld-new.sock
shell> MYSQL_TCP_PORT=3307
shell> export MYSQL_UNIX_PORT MYSQL_TCP_PORT
shell> mysql_install_db --user=mysql
shell> mysqld_safe --datadir=/path/to/datadir &
杩欐槸涓�涓揩閫熷惎鍔ㄧ浜屼釜鏈嶅姟鍣ㄤ互鐢ㄤ簬娴嬭瘯鐨勬柟娉曘�傝鏂规硶鐨勬渶澶уソ澶勬槸鐜鍙橀噺璁惧畾鍊奸�傜敤浜庝綘浠庣浉鍚岀殑shell璋冪敤鐨勪换浣曞鎴风绋嬪簭銆傚洜鑰岋紝閭ｄ簺瀹㈡埛绔繛鎺ヨ嚜鍔ㄦ寚鍚戠浜屼釜鏈嶅姟鍣紒
闄勫綍F锛�鐜鍙橀噺鍖呮嫭浣犲彲浠ヤ娇鐢ㄧ殑褰卞搷mysqld鐨勫叾瀹冪幆澧冨彉閲忓垪琛�銆�
瀵逛簬鑷姩鏈嶅姟鍣ㄥ惎鍔紝瀵逛簬姣忎釜鏈嶅姟鍣紝鏈哄櫒寮曞鏃舵墽琛岀殑鍚姩鑴氭湰搴旀墽琛屼笅闈㈢殑鍛戒护锛屾瘡涓懡浠ょ敤涓�涓浉搴旂殑閫夐」鏂囦欢璺緞锛�
mysqld_safe --defaults-file=path
姣忎釜閫夐」鏂囦欢搴斿寘鍚竴涓粰瀹氭湇鍔″櫒鐗瑰畾鐨勯�夐」鍊笺��
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褰撲綘鎯宠鐢ㄤ竴涓鎴风绋嬪簭杩炴帴涓�涓�MySQL鏈嶅姟鍣ㄦ椂锛岃鏈嶅姟鍣ㄤ睛鍚笉鍚岀殑缃戠粶鎺ュ彛锛岃�屼笉鏄紪璇戝埌浣犵殑瀹㈡埛绔殑缃戠粶鎺ュ彛锛屼綘鍙互浣跨敤涓嬮潰鐨勬柟娉曪細
路 鍚姩瀹㈡埛绔紝鐢�--host=host_name --port=port_number閫氳繃TCP/IP鏉ヨ繛鎺ヤ竴涓繙绋嬫湇鍔″櫒锛岀敤--host=127.0.0.1 --port=port_number閫氳繃TCP/IP鏉ヨ繛鎺ヤ竴涓湰鍦版湇鍔″櫒锛屾垨鑰呯敤--host=localhost --socket=file_name閫氳繃涓�涓�Unix濂楁帴瀛楁枃浠舵垨涓�涓�Windows鍛藉悕绠￠亾鏉ヨ繛鎺ヤ竴涓湰鍦版湇鍔″櫒銆�
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路 鍦�Unix涓紝鍦ㄤ綘鍚姩瀹㈡埛绔箣鍓嶏紝璁剧疆MYSQL_UNIX_PORT鍜�MYSQL_TCP_PORT鐜鍙橀噺鏉ユ寚瀹�Unix濂楁帴瀛楁枃浠跺拰TCP/IP绔彛鍙枫�傚鏋滀綘缁忓父浣跨敤鍏蜂綋鐨勫鎺ュ瓧鏂囦欢鎴栫鍙ｅ彿锛屼綘鍙互鍦�.login鏂囦欢涓斁缃懡浠ゆ潵璁剧疆鐜鍙橀噺浠ヤ究浣犳瘡娆＄櫥褰曟椂璇ュ懡浠よ捣浣滅敤銆傚弬瑙�闄勫綍F锛�鐜鍙橀噺銆�
路 鍦ㄤ竴涓�夐」鏂囦欢鐨�[client]缁勪腑鎸囧畾榛樿Unix濂楁帴瀛楁枃浠跺拰TCP/IP绔彛鍙枫�備緥濡傦紝浣犲彲浠ュ湪Windows涓娇鐢�C:\my.cnf鏂囦欢锛屾垨鍦�Unix涓富鐩綍鍐呬娇鐢�.my.cnf鏂囦欢銆傚弬瑙�4.3.2鑺傦紝鈥滀娇鐢ㄩ�夐」鏂囦欢鈥�銆�
路 鍦�C绋嬪簭涓紝鍦�mysql_real_connect()璋冪敤鏃讹紝浣犲彲浠ユ寚瀹氬鎺ュ瓧鏂囦欢鎴栫鍙ｅ彿鍙傛暟銆傞�氳繃璋冪敤mysql_options()锛�浣犺繕鍙互鏈夌▼搴忚閫夐」鏂囦欢銆傚弬瑙�25.2.3鑺傦紝鈥淐 API鍑芥暟鎻忚堪鈥�銆�
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路 $dsn = "DBI:mysql:test;mysql_read_default_group=client;"
路 . "mysql_read_default_file=/usr/local/mysql/data/my.cnf";
路 $dbh = DBI->connect($dsn, $user, $password);
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+------------------+-------+
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Query OK, 0 rows affected, 1 warning (0.00 sec)
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*************************** 1. row ***************************
Level: Warning
Code: 1282
Message: Query cache failed to set size 39936; new query cache size is 0
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Query OK, 0 rows affected (0.00 sec)
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+------------------+-------+
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+------------------+-------+
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+------------------+-------+
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| have_query_cache | YES |
+------------------+-------+
鍙互浣跨敤FLUSH QUERY CACHE璇彞鏉ユ竻鐞嗘煡璇㈢紦瀛樼鐗囦互鎻愰珮鍐呭瓨浣跨敤鎬ц兘銆傝璇彞涓嶄粠缂撳瓨涓Щ鍑轰换浣曟煡璇���
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涓轰簡鐩戣鏌ヨ缂撳瓨鎬ц兘锛屼娇鐢�SHOW STATUS鏌ョ湅缂撳瓨鐘舵�佸彉閲忥細
mysql> SHOW STATUS LIKE 'Qcache%';
+-------------------------+--------+
|鍙橀噺鍚� |鍊� |
+-------------------------+--------+
| Qcache_free_blocks | 36 |
| Qcache_free_memory | 138488 |
| Qcache_hits | 79570 |
| Qcache_inserts | 27087 |
| Qcache_lowmem_prunes | 3114 |
| Qcache_not_cached | 22989 |
| Qcache_queries_in_cache | 415 |
| Qcache_total_blocks | 912 |
+-------------------------+--------+
杩欎簺鍙橀噺鐨勬弿杩拌5.3.4鑺傦紝鈥滄湇鍔″櫒鐘舵�佸彉閲忊��銆傝繖閲屾弿杩板畠浠殑涓�浜涘簲鐢ㄣ��
SELECT鏌ヨ鐨勬�绘暟閲忕瓑浠蜂簬锛�
Com_select
+ Qcache_hits
+ queries with errors found by parser
Com_select鐨勫�肩瓑浠蜂簬锛�
Qcache_inserts
+ Qcache_not_cached
+ queries with errors found during columns/rights check
鏌ヨ缂撳瓨浣跨敤闀垮害鍙彉鍧楋紝鍥犳Qcache_total_blocks鍜�Qcache_free_blocks鍙互鏄剧ず鏌ヨ缂撳瓨鍐呭瓨纰庣墖銆傛墽琛�FLUSH QUERY CACHE鍚庯紝鍙繚鐣欎竴涓┖闂插潡銆�
姣忎釜缂撳瓨鏌ヨ鑷冲皯闇�瑕佷袱涓潡锛堜竴涓潡鐢ㄤ簬鏌ヨ鏂囨湰锛屼竴涓垨澶氫釜鍧楃敤浜庢煡璇㈢粨鏋滐級銆傚苟涓旓紝姣忎竴涓煡璇娇鐢ㄧ殑姣忎釜琛ㄩ渶瑕佷竴涓潡銆備絾鏄紝濡傛灉涓や釜鎴栧涓煡璇娇鐢ㄧ浉鍚岀殑琛紝浠呴渶瑕佸垎閰嶄竴涓潡銆�
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