{"id":5552,"date":"2024-11-14T10:07:31","date_gmt":"2024-11-14T02:07:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5552\/"},"modified":"2024-11-14T10:07:31","modified_gmt":"2024-11-14T02:07:31","slug":"mysql%e9%94%81%e6%80%8e%e4%b9%88%e7%9c%8b","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5552\/","title":{"rendered":"mysql\u9501\u600e\u4e48\u770b"},"content":{"rendered":"<blockquote><p>\n  \u5728 mysql \u4e2d\u67e5\u770b\u9501\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528 show processlist \u547d\u4ee4\uff0c\u67e5\u770b\u6b63\u5728\u8fd0\u884c\u7684\u67e5\u8be2\u548c\u4e8b\u52a1\u7684\u72b6\u6001\uff0c\u5982\u679c\u6709\u9501\u4f1a\u663e\u793a\u5728 state \u5217\u3002\u67e5\u8be2 information_schema.innodb_locks \u8868\uff0c\u83b7\u53d6\u5f53\u524d\u83b7\u5f97\u9501\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u9501\u7c7b\u578b\u3001\u4e8b\u52a1 id \u548c\u9501\u5b9a\u5bf9\u8c61\u3002\u8fd0\u884c mysqldumpslow \u547d\u4ee4\u5206\u6790\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u62a5\u544a\u83b7\u53d6\u9501\u7684\u60c5\u51b5\uff0c\u63d0\u4f9b\u9501\u7c7b\u578b\u3001\u7b49\u5f85\u65f6\u95f4\u548c\u9501\u5b9a\u4e8b\u52a1\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/29\/2024052909332833583.jpg\" class=\"aligncenter\" title=\"mysql\u9501\u600e\u4e48\u770b\u63d2\u56fe\" alt=\"mysql\u9501\u600e\u4e48\u770b\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 MySQL \u4e2d\u67e5\u770b\u9501<\/strong><\/p>\n<p>\u5728 MySQL \u4e2d\uff0c\u9501\u662f\u4e00\u9879\u91cd\u8981\u7684\u673a\u5236\uff0c\u5b83\u5141\u8bb8\u7cfb\u7edf\u63a7\u5236\u5bf9\u6570\u636e\u7684\u3002\u5f53\u67e5\u8be2\u6216\u4e8b\u52a1\u5bf9\u6570\u636e\u8fdb\u884c\u4fee\u6539\u65f6\uff0cMySQL \u4f1a\u81ea\u52a8\u83b7\u53d6\u9501\u6765\u9632\u6b62\u5176\u4ed6\u67e5\u8be2\u6216\u4e8b\u52a1\u540c\u65f6\u4fee\u6539\u76f8\u540c\u7684\u6570\u636e\u3002<\/p>\n<p><strong>\u5982\u4f55\u67e5\u770b\u9501<\/strong><\/p>\n<p>\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728 MySQL \u4e2d\u67e5\u770b\u9501\uff1a<\/p>\n<p><strong>1. SHOW PROCESSLIST \u547d\u4ee4<\/strong><\/p>\n<pre>SHOW PROCESSLIST;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u547d\u4ee4\u663e\u793a\u6240\u6709\u6b63\u5728\u8fd0\u884c\u7684\u67e5\u8be2\u548c\u4e8b\u52a1\u3002\u5728 &#8220;State&#8221; \u5217\u4e2d\uff0c\u60a8\u53ef\u4ee5\u770b\u5230\u67e5\u8be2\u6216\u4e8b\u52a1\u662f\u5426\u83b7\u53d6\u4e86\u9501\u3002\u53ef\u80fd\u7684\u9501\u72b6\u6001\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>Locked<\/li>\n<li>Waiting for lock<\/li>\n<li>Lock wait timeout exceeded<\/li>\n<\/ul>\n<p><strong>2. INFORMATION_SCHEMA.INNODB_LOCKS \u8868<\/strong><\/p>\n<pre>SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u8868\u5305\u542b\u6709\u5173\u5f53\u524d\u5df2\u83b7\u53d6\u9501\u7684\u4fe1\u606f\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>lock_id\uff1a\u9501\u7684\u552f\u4e00\u6807\u8bc6\u7b26<\/li>\n<li>lock_mode\uff1a\u9501\u7684\u7c7b\u578b (\u4f8b\u5982\uff0c\u5171\u4eab\u9501\u3001\u6392\u4ed6\u9501)<\/li>\n<li>transaction_id\uff1a\u83b7\u53d6\u9501\u7684\u4e8b\u52a1 ID<\/li>\n<li>object_instance_id\uff1a\u9501\u5b9a\u7684\u5bf9\u8c61<\/li>\n<li>lock_type\uff1a\u9501\u5b9a\u7684\u5bf9\u8c61\u7c7b\u578b (\u4f8b\u5982\uff0c\u8868\u9501\u3001\u884c\u9501)<\/li>\n<\/ul>\n<p><strong>3. dumpslow \u547d\u4ee4<\/strong><\/p>\n<pre>mysqldumpslow [options] [log-file]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u5de5\u5177\u53ef\u4ee5\u5206\u6790 MySQL \u6162\u67e5\u8be2\u65e5\u5fd7\u5e76\u62a5\u544a\u83b7\u53d6\u9501\u7684\u60c5\u51b5\u3002\u5b83\u751f\u6210\u4e00\u4e2a\u62a5\u544a\uff0c\u5176\u4e2d\u5305\u542b\u6709\u5173\u9501\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f8b\u5982\u9501\u7c7b\u578b\u3001\u7b49\u5f85\u65f6\u95f4\u548c\u9501\u5b9a\u7684\u4e8b\u52a1\u3002<\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 SHOW PROCESSLIST \u547d\u4ee4\u67e5\u770b\u9501\uff1a<\/p>\n<pre>mysql&gt; SHOW PROCESSLIST;\n+----+------------------------+-----------+----------+--------+------+----------------------+-------------------------------------------+\n| Id | User                   | Host       | db       | Command | Time | State                  | Info                                          |\n+----+------------------------+-----------+----------+--------+------+----------------------+-------------------------------------------+\n| 1  | root                   | localhost  | NULL     | Query   | 0    | Waiting for lock       | SELECT * FROM table_name WHERE id = 1 FOR UPDATE |\n| 2  | root                   | localhost  | NULL     | Sleep   | 0    | Locked                | NULL                                         |\n+----+------------------------+-----------+----------+--------+------+----------------------+-------------------------------------------+<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u770b\u5230\u8fdb\u7a0b ID \u4e3a 1 \u7684\u67e5\u8be2\u6b63\u5728\u7b49\u5f85\u9501\uff0c\u800c\u8fdb\u7a0b ID \u4e3a 2 \u7684\u67e5\u8be2\u5df2\u83b7\u53d6\u9501\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u9501\u600e\u4e48\u770b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 mysql \u4e2d\u67e5\u770b\u9501\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528 show processlist \u547d\u4ee4\uff0c\u67e5\u770b\u6b63\u5728\u8fd0\u884c\u7684\u67e5\u8be2\u548c\u4e8b\u52a1\u7684\u72b6\u6001\uff0c\u5982\u679c\u6709\u9501\u4f1a\u663e\u793a\u5728 state \u5217\u3002\u67e5\u8be2 information_schema.innodb_locks \u8868\uff0c\u83b7\u53d6\u5f53\u524d\u83b7\u5f97\u9501\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u9501\u7c7b\u578b\u3001\u4e8b\u52a1 id \u548c\u9501\u5b9a\u5bf9\u8c61\u3002\u8fd0\u884c mysqldumpslow \u547d\u4ee4\u5206\u6790\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u62a5\u544a\u83b7\u53d6\u9501\u7684\u60c5\u51b5\uff0c\u63d0\u4f9b\u9501\u7c7b\u578b\u3001\u7b49\u5f85\u65f6\u95f4\u548c\u9501\u5b9a\u4e8b\u52a1\u7684\u8be6\u7ec6\u4fe1\u606f\u3002 \u5982\u4f55\u5728 MySQL \u4e2d\u67e5\u770b\u9501 \u5728 MySQL \u4e2d\uff0c\u9501\u662f\u4e00\u9879\u91cd\u8981\u7684\u673a\u5236\uff0c\u5b83\u5141\u8bb8\u7cfb\u7edf\u63a7\u5236\u5bf9\u6570\u636e\u7684\u3002\u5f53\u67e5\u8be2\u6216\u4e8b\u52a1\u5bf9\u6570\u636e\u8fdb\u884c\u4fee\u6539\u65f6\uff0cMySQL \u4f1a\u81ea\u52a8\u83b7\u53d6\u9501\u6765\u9632\u6b62\u5176\u4ed6\u67e5\u8be2\u6216\u4e8b\u52a1\u540c\u65f6\u4fee\u6539\u76f8\u540c\u7684\u6570\u636e\u3002 \u5982\u4f55\u67e5\u770b\u9501 \u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728 MySQL \u4e2d\u67e5\u770b\u9501\uff1a 1. SHOW PROCESSLIST \u547d\u4ee4 SHOW PROCESSLIST; \u767b\u5f55\u540e\u590d\u5236 \u6b64\u547d\u4ee4\u663e\u793a\u6240\u6709\u6b63\u5728\u8fd0\u884c\u7684\u67e5\u8be2\u548c\u4e8b\u52a1\u3002\u5728 &#8220;State&#8221; \u5217\u4e2d\uff0c\u60a8\u53ef\u4ee5\u770b\u5230\u67e5\u8be2\u6216\u4e8b\u52a1\u662f\u5426\u83b7\u53d6\u4e86\u9501\u3002\u53ef\u80fd\u7684\u9501\u72b6\u6001\u5305\u62ec\uff1a Locked Waiting for lock Lock wait timeout exceeded 2. INFORMATION_SCHEMA.INNODB_LOCKS \u8868 SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS; \u767b\u5f55\u540e\u590d\u5236 \u6b64\u8868\u5305\u542b\u6709\u5173\u5f53\u524d\u5df2\u83b7\u53d6\u9501\u7684\u4fe1\u606f\uff0c\u5305\u62ec\uff1a lock_id\uff1a\u9501\u7684\u552f\u4e00\u6807\u8bc6\u7b26 lock_mode\uff1a\u9501\u7684\u7c7b\u578b (\u4f8b\u5982\uff0c\u5171\u4eab\u9501\u3001\u6392\u4ed6\u9501) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5552","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5552"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5552\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}