{"id":947,"date":"2018-08-10T15:24:32","date_gmt":"2018-08-10T07:24:32","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=947"},"modified":"2018-08-10T15:24:32","modified_gmt":"2018-08-10T07:24:32","slug":"%e5%a6%82%e4%bd%95%e6%9f%a5%e8%af%a2mysql%e4%b8%ad%e6%98%af%e5%90%a6%e8%a1%a8%e8%a2%ab%e9%94%81","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=947","title":{"rendered":"\u5982\u4f55\u67e5\u8be2mysql\u4e2d\u662f\u5426\u8868\u88ab\u9501"},"content":{"rendered":"\n
\u53ef\u76f4\u63a5\u5728mysql\u547d\u4ee4\u884c\u6267\u884c\uff1ashow engine innodb status\\G;\n\u67e5\u770b\u9020\u6210\u6b7b\u9501\u7684sql\u8bed\u53e5\uff0c\u5206\u6790\u7d22\u5f15\u60c5\u51b5\uff0c\u7136\u540e\u4f18\u5316sql\u7136\u540eshow processlist;<\/pre>\n\n\n\n
show status like \u2018%lock%\u2019\n<\/pre>\n\n\n\n
show\u00a0OPEN\u00a0TABLES\u00a0where\u00a0In_use\u00a0>\u00a00;\u00a0\u8fd9\u4e2a\u8bed\u53e5\u8bb0\u5f55\u5f53\u524d\u9501\u8868\u72b6\u6001\u00a0\u53e6\u5916\u53ef\u4ee5\u6253\u5f00\u6162\u67e5\u8be2\u65e5\u5fd7\uff0clinux\u4e0b\u6253\u5f00\u9700\u5728my.cnf\u7684[mysqld]\u91cc\u9762\u52a0\u4e0a\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n
slow_query_log=TRUE(\u6709\u4e9bmysql\u7248\u672c\u662fON)<\/p>\n\n\n\n
slow_query_log_file=\/usr\/local\/mysql\/slow_query_log.txt<\/p>\n\n\n\n
long_query_time=3<\/p>\n\n\n\n
Windows\uff1a<\/p>\n\n\n\n
\u5728my.ini\u914d\u7f6e\u6587\u4ef6\u7684[mysqld]\u9009\u9879\u4e0b\u589e\u52a0\uff1a<\/p>\n\n\n\n
slow_query_log=TRUE<\/p>\n\n\n\n
slow_query_log_file=c:\/slow_query_log.txt<\/p>\n\n\n\n
long_query_time=3<\/p>\n\n\n\n
\"\u5fae\u7b11\"\/<\/figure>\n\n\n\n
\u6dfb\u52a0\u5b8c\u6210\u4e4b\u540e\u8bb0\u5f97\u4e00\u5b9a\u8981\u91cd\u542fmysql\u670d\u52a1\u624d\u80fd\u751f\u6548\u8bb0\u5f55\u8f93\u51fa\u3002\u6700\u540e\u5728MySQL\u5ba2\u6237\u7aef\u4e2d\u8f93\u5165\u547d\u4ee4\uff1a<\/p>\n\n\n\n
show variables like ‘%quer%’; \u6838\u67e5\u4e00\u54c8\u662f\u5426Ok<\/p>\n\n\n\n
\u5f00\u542fmysql\u6162\u67e5\u8be2\u65e5\u5fd7<\/a><\/h1>\n\n\n\n
\u67e5\u770b\u914d\u7f6e\uff1a<\/p>\n\n\n\n
\/\/\u67e5\u770b\u6162\u67e5\u8be2\u65f6\u95f4\nshow variables like \"long_query_time\";\u9ed8\u8ba410s<\/pre>\n\n\n\n
\/\/\u67e5\u770b\u6162\u67e5\u8be2\u914d\u7f6e\u60c5\u51b5\nshow status like \"%slow_queries%\";<\/pre>\n\n\n\n
\/\/\u67e5\u770b\u6162\u67e5\u8be2\u65e5\u5fd7\u8def\u5f84\n show variables like \"%slow%\";<\/pre>\n\n\n\n
-slow_query_log\u662f\u5426\u8bb0\u5f55\u6162\u67e5\u8be2\u3002\u7528long_query_time\u53d8\u91cf\u7684\u503c\u6765\u786e\u5b9a\u201c\u6162\u67e5\u8be2\u201d\u3002<\/p>\n\n\n\n
-slow_query_log_file\u6162\u65e5\u5fd7\u6587\u4ef6\u8def\u5f84<\/p>\n\n\n\n
-long_query_time\u6162\u65e5\u5fd7\u6267\u884c\u65f6\u957f\uff08\u79d2\uff09\uff0c\u8d85\u8fc7\u8bbe\u5b9a\u7684\u65f6\u95f4\u624d\u4f1a\u8bb0\u65e5\u5fd7<\/p>\n\n\n\n
\u8a00\u5f52\u6b63\u4f20\uff0c\u56de\u5230\u6211\u4eec\u95ee\u9898\u7684\u51fa\u53d1\u70b9\u4e0aMysql\u00a0\u67e5\u8be2\u8868\u6b7b\u9501\u00a0\u548c\u7ed3\u675f\u6b7b\u9501\u7684\u8868\u6b65\u9aa4<\/strong><\/pre>\n\n\n\n
<\/pre>\n\n\n\n
1\u3001\u67e5\u8be2\u662f\u5426\u9501\u8868 show OPEN TABLES where In_use > 0;<\/p>\n\n\n\n
2\u3001\u67e5\u8be2\u8fdb\u7a0b<\/p>\n\n\n\n
\u00a0\u00a0\u00a0\u00a0show processlist \u00a0\u00a0\u67e5\u8be2\u5230\u76f8\u5bf9\u5e94\u7684\u8fdb\u7a0b===\u7136\u540e kill\u00a0\u00a0\u00a0\u00a0id<\/p>\n\n\n\n
\u8865\u5145\uff1a<\/p>\n\n\n\n
\u67e5\u770b\u6b63\u5728\u9501\u7684\u4e8b\u52a1<\/p>\n\n\n\n
SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS;\u00a0<\/p>\n\n\n\n
\u67e5\u770b\u7b49\u5f85\u9501\u7684\u4e8b\u52a1<\/p>\n\n\n\n
SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS;\u00a0<\/p>\n\n\n\n
\u3010\u9644\u5f55\u77e5\u8bc6\u3011\u00a0<\/strong><\/pre>\n\n\n\n
MySQL\u9501\u5b9a\u72b6\u6001\u67e5\u770b\u547d\u4ee4<\/a><\/h1>\n\n\n\n
<\/pre>\n\n\n\n
1 show processlist;<\/h2>\n\n\n\n
SHOW PROCESSLIST\u663e\u793a\u54ea\u4e9b\u7ebf\u7a0b\u6b63\u5728\u8fd0\u884c\u3002\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528mysqladmin processlist\u8bed\u53e5\u5f97\u5230\u6b64\u4fe1\u606f\u3002\u5982\u679c\u60a8\u6709SUPER\u6743\u9650\uff0c\u60a8\u53ef\u4ee5\u770b\u5230\u6240\u6709\u7ebf\u7a0b\u3002\u5426\u5219\uff0c\u60a8\u53ea\u80fd\u770b\u5230\u60a8\u81ea\u5df1\u7684\u7ebf\u7a0b\uff08\u4e5f\u5c31\u662f\uff0c\u4e0e\u60a8\u6b63\u5728\u4f7f\u7528\u7684MySQL\u8d26\u6237\u76f8\u5173\u7684\u7ebf\u7a0b\uff09\u3002\u5982\u679c\u6709\u7ebf\u7a0b\u5728update\u6216\u8005insert \u67d0\u4e2a\u8868\uff0c\u6b64\u65f6\u8fdb\u7a0b\u7684status\u4e3aupdating \u6216\u8005 sending data\u3002<\/p>\n\n\n\n
\u5982\u679c\u60a8\u5f97\u5230\u201ctoo many connections\u201d\u9519\u8bef\u4fe1\u606f\uff0c\u5e76\u4e14\u60f3\u8981\u4e86\u89e3\u6b63\u5728\u53d1\u751f\u7684\u60c5\u51b5\uff0c\u672c\u8bed\u53e5\u662f\u975e\u5e38\u6709\u7528\u7684\u3002MySQL\u4fdd\u7559\u4e00\u4e2a\u989d\u5916\u7684\u8fde\u63a5\uff0c\u8ba9\u62e5\u6709SUPER\u6743\u9650\u7684\u8d26\u6237\u4f7f\u7528\uff0c\u4ee5\u786e\u4fdd\u7ba1\u7406\u5458\u80fd\u591f\u968f\u65f6\u8fde\u63a5\u548c\u68c0\u67e5\u7cfb\u7edf\uff08\u5047\u8bbe\u60a8\u6ca1\u6709\u628a\u6b64\u6743\u9650\u7ed9\u4e88\u6240\u6709\u7684\u7528\u6237\uff09\u3002<\/p>\n\n\n\n
Status<\/strong><\/td>\u542b\u4e49<\/strong><\/td><\/tr>
Checking table<\/td>\u6b63\u5728\u68c0\u67e5\u6570\u636e\u8868\uff08\u8fd9\u662f\u81ea\u52a8\u7684\uff09\u3002<\/td><\/tr>
Closing tables<\/td>\u6b63\u5728\u5c06\u8868\u4e2d\u4fee\u6539\u7684\u6570\u636e\u5237\u65b0\u5230\u78c1\u76d8\u4e2d\uff0c\u540c\u65f6\u6b63\u5728\u5173\u95ed\u5df2\u7ecf\u7528\u5b8c\u7684\u8868\u3002\u8fd9\u662f\u4e00\u4e2a\u5f88\u5feb\u7684\u64cd\u4f5c\uff0c\u5982\u679c\u4e0d\u662f\u8fd9\u6837\u7684\u8bdd\uff0c\u5c31\u5e94\u8be5\u786e\u8ba4\u78c1\u76d8\u7a7a\u95f4\u662f\u5426\u5df2\u7ecf\u6ee1\u4e86\u6216\u8005\u78c1\u76d8\u662f\u5426\u6b63\u5904\u4e8e\u91cd\u8d1f\u4e2d\u3002<\/td><\/tr>
Connect Out<\/td>\u590d\u5236\u4ece\u670d\u52a1\u5668\u6b63\u5728\u8fde\u63a5\u4e3b\u670d\u52a1\u5668\u3002<\/td><\/tr>
Copying to tmp table on disk<\/td>\u7531\u4e8e\u4e34\u65f6\u7ed3\u679c\u96c6\u5927\u4e8etmp_table_size\uff0c\u6b63\u5728\u5c06\u4e34\u65f6\u8868\u4ece\u5185\u5b58\u5b58\u50a8\u8f6c\u4e3a\u78c1\u76d8\u5b58\u50a8\u4ee5\u6b64\u8282\u7701\u5185\u5b58\u3002<\/td><\/tr>
Creating tmp table<\/td>\u6b63\u5728\u521b\u5efa\u4e34\u65f6\u8868\u4ee5\u5b58\u653e\u90e8\u5206\u67e5\u8be2\u7ed3\u679c\u3002<\/td><\/tr>
deleting from main table<\/td>\u670d\u52a1\u5668\u6b63\u5728\u6267\u884c\u591a\u8868\u5220\u9664\u4e2d\u7684\u7b2c\u4e00\u90e8\u5206\uff0c\u521a\u5220\u9664\u7b2c\u4e00\u4e2a\u8868\u3002<\/td><\/tr>
deleting from reference tables<\/td>\u670d\u52a1\u5668\u6b63\u5728\u6267\u884c\u591a\u8868\u5220\u9664\u4e2d\u7684\u7b2c\u4e8c\u90e8\u5206\uff0c\u6b63\u5728\u5220\u9664\u5176\u4ed6\u8868\u7684\u8bb0\u5f55\u3002<\/td><\/tr>
Flushing tables<\/td>\u6b63\u5728\u6267\u884cFLUSH TABLES\uff0c\u7b49\u5f85\u5176\u4ed6\u7ebf\u7a0b\u5173\u95ed\u6570\u636e\u8868\u3002<\/td><\/tr>
Killed<\/td>\u53d1\u9001\u4e86\u4e00\u4e2akill\u8bf7\u6c42\u7ed9\u67d0\u7ebf\u7a0b\uff0c\u90a3\u4e48\u8fd9\u4e2a\u7ebf\u7a0b\u5c06\u4f1a\u68c0\u67e5kill\u6807\u5fd7\u4f4d\uff0c\u540c\u65f6\u4f1a\u653e\u5f03\u4e0b\u4e00\u4e2akill\u8bf7\u6c42\u3002MySQL\u4f1a\u5728\u6bcf\u6b21\u7684\u4e3b\u5faa\u73af\u4e2d\u68c0\u67e5kill\u6807\u5fd7\u4f4d\uff0c\u4e0d\u8fc7\u6709\u4e9b\u60c5\u51b5\u4e0b\u8be5\u7ebf\u7a0b\u53ef\u80fd\u4f1a\u8fc7\u4e00\u5c0f\u6bb5\u624d\u80fd\u6b7b\u6389\u3002\u5982\u679c\u8be5\u7ebf\u7a0b\u7a0b\u88ab\u5176\u4ed6\u7ebf\u7a0b\u9501\u4f4f\u4e86\uff0c\u90a3\u4e48kill\u8bf7\u6c42\u4f1a\u5728\u9501\u91ca\u653e\u65f6\u9a6c\u4e0a\u751f\u6548\u3002<\/td><\/tr>
Locked<\/td>\u88ab\u5176\u4ed6\u67e5\u8be2\u9501\u4f4f\u4e86\u3002<\/td><\/tr>
Sending data<\/td>\u6b63\u5728\u5904\u7406SELECT\u67e5\u8be2\u7684\u8bb0\u5f55\uff0c\u540c\u65f6\u6b63\u5728\u628a\u7ed3\u679c\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/td><\/tr>
Sorting for group<\/td>\u6b63\u5728\u4e3aGROUP BY\u505a\u6392\u5e8f\u3002<\/td><\/tr>
Sorting for order<\/td>\u6b63\u5728\u4e3aORDER BY\u505a\u6392\u5e8f\u3002<\/td><\/tr>
Opening tables<\/td>\u8fd9\u4e2a\u8fc7\u7a0b\u5e94\u8be5\u4f1a\u5f88\u5feb\uff0c\u9664\u975e\u53d7\u5230\u5176\u4ed6\u56e0\u7d20\u7684\u5e72\u6270\u3002\u4f8b\u5982\uff0c\u5728\u6267ALTER TABLE\u6216LOCK TABLE\u8bed\u53e5\u884c\u5b8c\u4ee5\u524d\uff0c\u6570\u636e\u8868\u65e0\u6cd5\u88ab\u5176\u4ed6\u7ebf\u7a0b\u6253\u5f00\u3002\u6b63\u5c1d\u8bd5\u6253\u5f00\u4e00\u4e2a\u8868\u3002<\/td><\/tr>
Removing duplicates<\/td>\u6b63\u5728\u6267\u884c\u4e00\u4e2aSELECT DISTINCT\u65b9\u5f0f\u7684\u67e5\u8be2\uff0c\u4f46\u662fMySQL\u65e0\u6cd5\u5728\u524d\u4e00\u4e2a\u9636\u6bb5\u4f18\u5316\u6389\u90a3\u4e9b\u91cd\u590d\u7684\u8bb0\u5f55\u3002\u56e0\u6b64\uff0cMySQL\u9700\u8981\u518d\u6b21\u53bb\u6389\u91cd\u590d\u7684\u8bb0\u5f55\uff0c\u7136\u540e\u518d\u628a\u7ed3\u679c\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/td><\/tr>
Reopen table<\/td>\u83b7\u5f97\u4e86\u5bf9\u4e00\u4e2a\u8868\u7684\u9501\uff0c\u4f46\u662f\u5fc5\u987b\u5728\u8868\u7ed3\u6784\u4fee\u6539\u4e4b\u540e\u624d\u80fd\u83b7\u5f97\u8fd9\u4e2a\u9501\u3002\u5df2\u7ecf\u91ca\u653e\u9501\uff0c\u5173\u95ed\u6570\u636e\u8868\uff0c\u6b63\u5c1d\u8bd5\u91cd\u65b0\u6253\u5f00\u6570\u636e\u8868\u3002<\/td><\/tr>
Repair by sorting<\/td>\u4fee\u590d\u6307\u4ee4\u6b63\u5728\u6392\u5e8f\u4ee5\u521b\u5efa\u7d22\u5f15\u3002<\/td><\/tr>
Repair with keycache<\/td>\u4fee\u590d\u6307\u4ee4\u6b63\u5728\u5229\u7528\u7d22\u5f15\u7f13\u5b58\u4e00\u4e2a\u4e00\u4e2a\u5730\u521b\u5efa\u65b0\u7d22\u5f15\u3002\u5b83\u4f1a\u6bd4Repair by sorting\u6162\u4e9b\u3002<\/td><\/tr>
Searching rows for update<\/td>\u6b63\u5728\u8bb2\u7b26\u5408\u6761\u4ef6\u7684\u8bb0\u5f55\u627e\u51fa\u6765\u4ee5\u5907\u66f4\u65b0\u3002\u5b83\u5fc5\u987b\u5728UPDATE\u8981\u4fee\u6539\u76f8\u5173\u7684\u8bb0\u5f55\u4e4b\u524d\u5c31\u5b8c\u6210\u4e86\u3002<\/td><\/tr>
Sleeping<\/td>\u6b63\u5728\u7b49\u5f85\u5ba2\u6237\u7aef\u53d1\u9001\u65b0\u8bf7\u6c42\u3002<\/td><\/tr>
System lock<\/td>\u6b63\u5728\u7b49\u5f85\u53d6\u5f97\u4e00\u4e2a\u5916\u90e8\u7684\u7cfb\u7edf\u9501\u3002\u5982\u679c\u5f53\u524d\u6ca1\u6709\u8fd0\u884c\u591a\u4e2amysqld\u670d\u52a1\u5668\u540c\u65f6\u8bf7\u6c42\u540c\u4e00\u4e2a\u8868\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0–skip-external-locking\u53c2\u6570\u6765\u7981\u6b62\u5916\u90e8\u7cfb\u7edf\u9501\u3002<\/td><\/tr>
Upgrading lock<\/td>INSERT DELAYED\u6b63\u5728\u5c1d\u8bd5\u53d6\u5f97\u4e00\u4e2a\u9501\u8868\u4ee5\u63d2\u5165\u65b0\u8bb0\u5f55\u3002<\/td><\/tr>
Updating<\/td>\u6b63\u5728\u641c\u7d22\u5339\u914d\u7684\u8bb0\u5f55\uff0c\u5e76\u4e14\u4fee\u6539\u5b83\u4eec\u3002<\/td><\/tr>
User Lock<\/td>\u6b63\u5728\u7b49\u5f85GET_LOCK()\u3002<\/td><\/tr>
Waiting for tables<\/td>\u8be5\u7ebf\u7a0b\u5f97\u5230\u901a\u77e5\uff0c\u6570\u636e\u8868\u7ed3\u6784\u5df2\u7ecf\u88ab\u4fee\u6539\u4e86\uff0c\u9700\u8981\u91cd\u65b0\u6253\u5f00\u6570\u636e\u8868\u4ee5\u53d6\u5f97\u65b0\u7684\u7ed3\u6784\u3002\u7136\u540e\uff0c\u4e3a\u4e86\u80fd\u7684\u91cd\u65b0\u6253\u5f00\u6570\u636e\u8868\uff0c\u5fc5\u987b\u7b49\u5230\u6240\u6709\u5176\u4ed6\u7ebf\u7a0b\u5173\u95ed\u8fd9\u4e2a\u8868\u3002\u4ee5\u4e0b\u51e0\u79cd\u60c5\u51b5\u4e0b\u4f1a\u4ea7\u751f\u8fd9\u4e2a\u901a\u77e5\uff1aFLUSH TABLES tbl_name, ALTER TABLE, RENAME TABLE, REPAIR TABLE, ANALYZE TABLE,\u6216OPTIMIZE TABLE\u3002<\/td><\/tr>
waiting for handler insert<\/td>INSERT DELAYED\u5df2\u7ecf\u5904\u7406\u5b8c\u4e86\u6240\u6709\u5f85\u5904\u7406\u7684\u63d2\u5165\u64cd\u4f5c\uff0c\u6b63\u5728\u7b49\u5f85\u65b0\u7684\u8bf7\u6c42\u3002<\/td><\/tr><\/tbody><\/table>\n\n\n\n
\u5927\u90e8\u5206\u72b6\u6001\u5bf9\u5e94\u5f88\u5feb\u7684\u64cd\u4f5c\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u7ebf\u7a0b\u4fdd\u6301\u540c\u4e00\u4e2a\u72b6\u6001\u597d\u51e0\u79d2\u949f\uff0c\u90a3\u4e48\u53ef\u80fd\u662f\u6709\u95ee\u9898\u53d1\u751f\u4e86\uff0c\u9700\u8981\u68c0\u67e5\u4e00\u4e0b\u3002\u8fd8\u6709\u5176\u4ed6\u7684\u72b6\u6001\u6ca1\u5728\u4e0a\u9762\u4e2d\u5217\u51fa\u6765\uff0c\u4e0d\u8fc7\u5b83\u4eec\u5927\u90e8\u5206\u53ea\u662f\u5728\u67e5\u770b\u670d\u52a1\u5668\u662f\u5426\u6709\u5b58\u5728\u9519\u8bef\u662f\u624d\u7528\u5f97\u7740\u3002<\/p>\n\n\n\n
2 show full processlist;<\/h2>\n\n\n\n
show processlist;\u53ea\u5217\u51fa\u524d100\u6761\uff0c\u5982\u679c\u60f3\u5168\u5217\u51fa\u8bf7\u4f7f\u7528show full processlist;<\/p>\n\n\n\n
3 show open tables;<\/h2>\n\n\n\n
\u8fd9\u6761\u547d\u4ee4\u80fd\u591f\u67e5\u770b\u5f53\u524d\u6709\u90a3\u4e9b\u8868\u662f\u6253\u5f00\u7684\u3002In_use\u5217\u8868\u793a\u6709\u591a\u5c11\u7ebf\u7a0b\u6b63\u5728\u4f7f\u7528\u67d0\u5f20\u8868\uff0cName_locked\u8868\u793a\u8868\u540d\u662f\u5426\u88ab\u9501\uff0c\u8fd9\u4e00\u822c\u53d1\u751f\u5728Drop\u6216Rename\u547d\u4ee4\u64cd\u4f5c\u8fd9\u5f20\u8868\u65f6\u3002\u6240\u4ee5\u8fd9\u6761\u547d\u4ee4\u4e0d\u80fd\u5e2e\u52a9\u89e3\u7b54\u6211\u4eec\u5e38\u89c1\u7684\u95ee\u9898\uff1a\u5f53\u524d\u67d0\u5f20\u8868\u662f\u5426\u6709\u6b7b\u9501\uff0c\u8c01\u62e5\u6709\u8868\u4e0a\u7684\u8fd9\u4e2a\u9501\u7b49\u3002<\/p>\n\n\n\n
show open tables from database;<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
4 show status like \u2018%lock%\u2019<\/h2>\n\n\n\n
\u67e5\u770b\u670d\u52a1\u5668\u72b6\u6001\u3002<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
5 show engine innodb status\\G;<\/h2>\n\n\n\n
MySQL 5.1\u4e4b\u524d\u7684\u547d\u4ee4\u662f\uff1ashow innodbstatus\\G;\uff0cMySQL 5.5\u4f7f\u7528\u4e0a\u9762\u547d\u4ee4\u5373\u53ef\u67e5\u770binnodb\u5f15\u64ce\u7684\u8fd0\u884c\u65f6\u4fe1\u606f\u3002<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
6 show variables like \u2018%timeout%\u2019;<\/h2>\n\n\n\n
\u67e5\u770b\u670d\u52a1\u5668\u914d\u7f6e\u53c2\u6570\u3002<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u3010\u53c2\u8003\u8d44\u6599\u3011<\/strong><\/p>\n\n\n\n
1.\u00a0\u6162\u67e5\u8be2\u65e5\u5fd7\u5206\u6790 – wulantian\u7684\u4e13\u680f – \u535a\u5ba2\u9891\u9053 – CSDN.NET\u00a0http:\/\/blog.csdn.net\/wulantian\/article\/details\/40296541<\/a><\/p>\n\n\n\n
2.mysql5.0\u7ecf\u5e38\u51fa\u73b0 err=1205 – Lockwait timeout exceeded; try restarting transaction<\/p>\n\n\n\n
\nhttp:\/\/www.imysql.cn\/node\/165\n<\/figure>\n\n\n\n
3.mysql show processlist\u547d\u4ee4\u8be6\u89e3<\/p>\n\n\n\n
\nhttp:\/\/www.cnblogs.com\/JulyZhang\/archive\/2011\/01\/28\/1947165.html\n<\/figure>\n\n\n\n
4.MySQL\u9501<\/p>\n\n\n\n
\nhttp:\/\/blog.csdn.net\/c__ilikeyouma\/article\/details\/8541195\n<\/figure>\n\n\n\n
5.SHOW INNODB STATUS\u63d0\u793a\u8bed\u6cd5\u9519\u8bef\uff1f<\/p>\n\n\n\n
\nhttp:\/\/www.itpub.net\/thread-1454597-1-1.html\n<\/figure>\n\n\n\n
6.SHOW OPEN TABLES \u2013 what is in your tablecache<\/p>\n\n\n\n
\nhttp:\/\/blog.sina.com.cn\/s\/blog_4d1f40c00100rsse.html\n<\/figure>\n","protected":false},"excerpt":{"rendered":"
\u53ef\u76f4\u63a5\u5728mysql\u547d\u4ee4\u884c\u6267\u884c\uff1ashow engine innodb status\\G; \u67e5\u770b\u9020\u6210\u6b7b\u9501\u7684sql\u8bed\u53e5\uff0c\u5206\u6790\u7d22\u5f15\u60c5\u51b5\uff0c\u7136\u540e\u4f18\u5316sql\u7136\u540eshow processlist; show status like \u2018%lock%\u2019 show\u00a0OPEN\u00a0TABLES\u00a0where\u00a0In_use\u00a0>\u00a00;\u00a0\u8fd9\u4e2a\u8bed\u53e5\u8bb0\u5f55\u5f53\u524d\u9501\u8868\u72b6\u6001\u00a0\u53e6\u5916\u53ef\u4ee5\u6253\u5f00\u6162\u67e5\u8be2\u65e5\u5fd7\uff0clinux\u4e0b\u6253\u5f00\u9700\u5728my.cnf\u7684[mysqld]\u91cc\u9762\u52a0\u4e0a\u4ee5\u4e0b\u5185\u5bb9\uff1a slow_query_log=TRUE(\u6709\u4e9bmysql\u7248\u672c\u662fON) slow_query_log_file=\/usr\/local\/mysql\/slow_query_log.txt long_query_time=3 Windows\uff1a \u5728my.ini\u914d\u7f6e\u6587\u4ef6\u7684[mysqld]\u9009\u9879\u4e0b\u589e\u52a0\uff1a slow_query_log=TRUE slow_query_log_file=c:\/slow_query_log.txt long_query_time=3 \u6dfb\u52a0\u5b8c\u6210\u4e4b\u540e\u8bb0\u5f97\u4e00\u5b9a\u8981\u91cd\u542fmysql\u670d\u52a1\u624d\u80fd\u751f\u6548\u8bb0\u5f55\u8f93\u51fa\u3002\u6700\u540e\u5728MySQL\u5ba2\u6237\u7aef\u4e2d\u8f93\u5165\u547d\u4ee4\uff1a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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