{"id":55676,"date":"2025-08-14T07:15:02","date_gmt":"2025-08-13T23:15:02","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/55676.html"},"modified":"2025-08-14T07:15:02","modified_gmt":"2025-08-13T23:15:02","slug":"mysql197%e5%a6%82%e4%bd%95%e7%9b%91%e6%8e%a7mysql%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/55676.html","title":{"rendered":"MySQL(197)\u5982\u4f55\u76d1\u63a7MySQL\uff1f"},"content":{"rendered":"<p>\u76d1\u63a7MySQL\u662f\u786e\u4fdd\u6570\u636e\u5e93\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u7684\u91cd\u8981\u90e8\u5206\u3002\u6709\u6548\u7684\u76d1\u63a7\u80fd\u591f\u53ca\u65f6\u53d1\u73b0\u6f5c\u5728\u95ee\u9898\u5e76\u8fdb\u884c\u4f18\u5316\u3002\u4e0b\u9762\u4ecb\u7ecd\u51e0\u79cd\u5e38\u7528\u7684MySQL\u76d1\u63a7\u65b9\u6cd5\u548c\u76f8\u5173\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<h4>\u4e00\u3001\u4f7f\u7528MySQL\u81ea\u5e26\u5de5\u5177\u8fdb\u884c\u76d1\u63a7<\/h4>\n<h5>1.1 SHOW STATUS \u547d\u4ee4<\/h5>\n<p>SHOW STATUS \u547d\u4ee4\u53ef\u4ee5\u83b7\u53d6MySQL\u670d\u52a1\u5668\u7684\u72b6\u6001\u4fe1\u606f&#xff0c;\u663e\u793a\u5404\u79cd\u6027\u80fd\u6307\u6807\u3002<\/p>\n<p><span class=\"token keyword\">SHOW<\/span> <span class=\"token keyword\">GLOBAL<\/span> <span class=\"token keyword\">STATUS<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5e38\u7528\u6307\u6807\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>Connections: \u8fde\u63a5\u6570<\/li>\n<li>Uptime: \u670d\u52a1\u5668\u8fd0\u884c\u65f6\u95f4<\/li>\n<li>Threads_connected: \u5f53\u524d\u8fde\u63a5\u6570<\/li>\n<li>Questions: \u67e5\u8be2\u6570<\/li>\n<li>Slow_queries: \u6162\u67e5\u8be2\u6570<\/li>\n<\/ul>\n<h5>1.2 SHOW VARIABLES \u547d\u4ee4<\/h5>\n<p>SHOW VARIABLES \u547d\u4ee4\u53ef\u4ee5\u67e5\u770bMySQL\u670d\u52a1\u5668\u7684\u914d\u7f6e\u53d8\u91cf\u3002<\/p>\n<p><span class=\"token keyword\">SHOW<\/span> <span class=\"token keyword\">GLOBAL<\/span> VARIABLES<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f8b\u5982&#xff0c;\u67e5\u770b\u6162\u67e5\u8be2\u65e5\u5fd7\u914d\u7f6e&#xff1a;<\/p>\n<p><span class=\"token keyword\">SHOW<\/span> VARIABLES <span class=\"token operator\">LIKE<\/span> <span class=\"token string\">&#039;slow_query_log%&#039;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\n<p>&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;<br \/>\n| Variable_name       | Value                          |<br \/>\n&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;<br \/>\n| slow_query_log      | ON                             |<br \/>\n| slow_query_log_file | \/var\/lib\/mysql\/mysql-slow.log  |<br \/>\n&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;<\/p>\n<h5>1.3 \u6162\u67e5\u8be2\u65e5\u5fd7<\/h5>\n<p>\u6162\u67e5\u8be2\u65e5\u5fd7\u8bb0\u5f55\u6267\u884c\u65f6\u95f4\u8d85\u8fc7\u6307\u5b9a\u9608\u503c\u7684\u67e5\u8be2&#xff0c;\u5e2e\u52a9\u8bc6\u522b\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<li>\u542f\u7528\u6162\u67e5\u8be2\u65e5\u5fd7&#xff1a;<\/li>\n<p><span class=\"token keyword\">SET<\/span> <span class=\"token keyword\">GLOBAL<\/span> slow_query_log <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;ON&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">SET<\/span> <span class=\"token keyword\">GLOBAL<\/span> long_query_time <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">&#8212; \u8bbe\u7f6e\u6162\u67e5\u8be2\u65f6\u95f4\u9608\u503c\u4e3a2\u79d2<\/span><\/p>\n<li>\u67e5\u770b\u6162\u67e5\u8be2\u65e5\u5fd7&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">cat<\/span> \/var\/lib\/mysql\/mysql-slow.log<\/p>\n<h4>\u4e8c\u3001\u4f7f\u7528\u6027\u80fd\u6a21\u5f0f&#xff08;Performance Schema&#xff09;<\/h4>\n<p>Performance Schema\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9ad8\u7ea7\u76d1\u63a7\u548c\u8bca\u65ad\u5de5\u5177&#xff0c;\u80fd\u591f\u6355\u83b7MySQL\u670d\u52a1\u5668\u7684\u8fd0\u884c\u65f6\u6027\u80fd\u6570\u636e\u3002<\/p>\n<h5>2.1 \u542f\u7528Performance Schema<\/h5>\n<p>\u5728MySQL\u914d\u7f6e\u6587\u4ef6\u4e2d\u542f\u7528Performance Schema&#xff1a;<\/p>\n<p>[mysqld]<br \/>\nperformance_schema&#061;ON<\/p>\n<p>\u91cd\u542fMySQL\u670d\u52a1&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> systemctl restart mysql<\/p>\n<h5>2.2 \u67e5\u8be2Performance Schema<\/h5>\n<p>Performance Schema\u4f7f\u7528\u4e00\u7ec4\u7279\u6b8a\u7684\u8868\u5b58\u50a8\u76d1\u63a7\u6570\u636e&#xff0c;\u53ef\u4ee5\u901a\u8fc7SQL\u67e5\u8be2\u8fd9\u4e9b\u8868\u6765\u83b7\u53d6\u6027\u80fd\u4fe1\u606f\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u67e5\u770b\u5f53\u524d\u6d3b\u52a8\u7684\u7ebf\u7a0b&#xff1a;<\/p>\n<p><span class=\"token keyword\">SELECT<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">FROM<\/span> performance_schema<span class=\"token punctuation\">.<\/span>threads<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u67e5\u770b\u7b49\u5f85\u4e8b\u4ef6\u6458\u8981&#xff1a;<\/p>\n<p><span class=\"token keyword\">SELECT<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">FROM<\/span> performance_schema<span class=\"token punctuation\">.<\/span>events_waits_summary_global_by_event_name<span class=\"token punctuation\">;<\/span><\/p>\n<h4>\u4e09\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u76d1\u63a7\u5de5\u5177<\/h4>\n<h5>3.1 MySQL Enterprise Monitor<\/h5>\n<p>MySQL Enterprise Monitor\u662fOracle\u63d0\u4f9b\u7684\u4e00\u6b3e\u5546\u4e1a\u76d1\u63a7\u5de5\u5177&#xff0c;\u529f\u80fd\u5f3a\u5927\u4f46\u9700\u8981\u4ed8\u8d39\u3002<\/p>\n<h5>3.2 Zabbix<\/h5>\n<p>Zabbix\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u76d1\u63a7\u5de5\u5177&#xff0c;\u53ef\u4ee5\u7528\u6765\u76d1\u63a7MySQL\u6570\u636e\u5e93\u3002<\/p>\n<li>\n<p>\u5b89\u88c5\u5e76\u914d\u7f6eZabbix&#xff1a;<\/p>\n<ul>\n<li>\u53c2\u8003\u5b98\u65b9\u6587\u6863\u5b89\u88c5Zabbix\u670d\u52a1\u5668\u548c\u4ee3\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u914d\u7f6eMySQL\u76d1\u63a7&#xff1a;<\/p>\n<ul>\n<li>\u5728Zabbix\u524d\u7aef\u6dfb\u52a0\u4e3b\u673a\u3002<\/li>\n<li>\u914d\u7f6eMySQL\u6a21\u677f\u5e76\u5173\u8054\u5230\u4e3b\u673a\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u542f\u7528MySQL\u76d1\u63a7&#xff1a;<\/p>\n<p>zabbix_agentd <span class=\"token parameter variable\">-c<\/span> \/etc\/zabbix\/zabbix_agentd.conf<\/p>\n<\/li>\n<h5>3.3 Prometheus\u548cGrafana<\/h5>\n<p>Prometheus\u548cGrafana\u662f\u5e38\u7528\u7684\u5f00\u6e90\u76d1\u63a7\u548c\u53ef\u89c6\u5316\u5de5\u5177\u7ec4\u5408\u3002<\/p>\n<li>\n<p>\u5b89\u88c5Prometheus\u548cGrafana&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">apt-get<\/span> <span class=\"token function\">install<\/span> prometheus grafana<\/p>\n<\/li>\n<li>\n<p>\u5b89\u88c5MySQL Exporter&#xff1a;<\/p>\n<p><span class=\"token function\">wget<\/span> https:\/\/github.com\/prometheus\/mysqld_exporter\/releases\/download\/v0.12.1\/mysqld_exporter-0.12.1.linux-amd64.tar.gz<br \/>\n<span class=\"token function\">tar<\/span> <span class=\"token parameter variable\">-zxvf<\/span> mysqld_exporter-0.12.1.linux-amd64.tar.gz<br \/>\n<span class=\"token builtin class-name\">cd<\/span> mysqld_exporter-0.12.1.linux-amd64<br \/>\n.\/mysqld_exporter &#8211;config.my-cnf<span class=\"token operator\">&#061;<\/span>\/path\/to\/.my.cnf<\/p>\n<\/li>\n<li>\n<p>\u914d\u7f6ePrometheus&#xff1a;<\/p>\n<p>\u7f16\u8f91prometheus.yml\u6587\u4ef6&#xff1a;<\/p>\n<p><span class=\"token key atrule\">scrape_configs<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">job_name<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#039;mysql&#039;<\/span><br \/>\n    <span class=\"token key atrule\">static_configs<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">targets<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;localhost:9104&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>\u542f\u52a8Prometheus&#xff1a;<\/p>\n<p>prometheus <span class=\"token parameter variable\">&#8211;config.file<\/span><span class=\"token operator\">&#061;<\/span>prometheus.yml<\/p>\n<\/li>\n<li>\n<p>\u914d\u7f6eGrafana&#xff1a;<\/p>\n<ul>\n<li>\u767b\u5f55Grafana&#xff08;\u9ed8\u8ba4\u7aef\u53e3\u4e3a3000&#xff09;\u3002<\/li>\n<li>\u6dfb\u52a0Prometheus\u6570\u636e\u6e90\u3002<\/li>\n<li>\u5bfc\u5165MySQL\u76d1\u63a7\u4eea\u8868\u677f\u3002<\/li>\n<\/ul>\n<\/li>\n<h4>\u56db\u3001\u65e5\u5fd7\u76d1\u63a7<\/h4>\n<li>\u67e5\u770b\u9519\u8bef\u65e5\u5fd7&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">tail<\/span> <span class=\"token parameter variable\">-f<\/span> \/var\/log\/mysql\/error.log<\/p>\n<li>\u5ba1\u8ba1\u65e5\u5fd7&#xff1a;<\/li>\n<p>MySQL Enterprise Edition\u652f\u6301\u5ba1\u8ba1\u65e5\u5fd7&#xff0c;\u53ef\u4ee5\u8bb0\u5f55\u7528\u6237\u6d3b\u52a8\u3002<\/p>\n<h4>\u4e94\u3001\u8bbe\u7f6e\u544a\u8b66<\/h4>\n<p>\u4f7f\u7528\u4e0a\u8ff0\u76d1\u63a7\u5de5\u5177\u914d\u7f6e\u544a\u8b66&#xff0c;\u4ee5\u4fbf\u5728\u51fa\u73b0\u95ee\u9898\u65f6\u53ca\u65f6\u6536\u5230\u901a\u77e5\u3002<\/p>\n<h5>5.1 Zabbix\u544a\u8b66<\/h5>\n<li>\n<p>\u914d\u7f6e\u89e6\u53d1\u5668&#xff1a;<\/p>\n<ul>\n<li>\u5728Zabbix\u524d\u7aef\u914d\u7f6e\u89e6\u53d1\u5668&#xff0c;\u4f8b\u5982\u8fde\u63a5\u6570\u8fc7\u9ad8\u544a\u8b66\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u914d\u7f6e\u544a\u8b66\u5a92\u4ecb&#xff1a;<\/p>\n<ul>\n<li>\u6dfb\u52a0\u90ae\u4ef6\u901a\u77e5\u6216\u5176\u4ed6\u544a\u8b66\u5a92\u4ecb\u3002<\/li>\n<\/ul>\n<\/li>\n<h5>5.2 Prometheus\u544a\u8b66<\/h5>\n<li>\n<p>\u914d\u7f6e\u544a\u8b66\u89c4\u5219&#xff1a;<\/p>\n<p>\u7f16\u8f91prometheus.yml\u6587\u4ef6&#xff1a;<\/p>\n<p><span class=\"token key atrule\">rule_files<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token string\">&#034;alert.rules&#034;<\/span><\/p>\n<p><span class=\"token key atrule\">alerting<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">alertmanagers<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">static_configs<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">targets<\/span><span class=\"token punctuation\">:<\/span><br \/>\n          <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token string\">&#039;localhost:9093&#039;<\/span><\/p>\n<\/li>\n<li>\n<p>\u793a\u4f8b\u544a\u8b66\u89c4\u5219&#xff08;alert.rules&#xff09;&#xff1a;<\/p>\n<p><span class=\"token key atrule\">groups<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">name<\/span><span class=\"token punctuation\">:<\/span> mysql_alerts<br \/>\n    <span class=\"token key atrule\">rules<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">alert<\/span><span class=\"token punctuation\">:<\/span> HighConnections<br \/>\n        <span class=\"token key atrule\">expr<\/span><span class=\"token punctuation\">:<\/span> mysql_global_status_threads_connected <span class=\"token punctuation\">&gt;<\/span> 100<br \/>\n        <span class=\"token key atrule\">for<\/span><span class=\"token punctuation\">:<\/span> 5m<br \/>\n        <span class=\"token key atrule\">labels<\/span><span class=\"token punctuation\">:<\/span><br \/>\n          <span class=\"token key atrule\">severity<\/span><span class=\"token punctuation\">:<\/span> critical<br \/>\n        <span class=\"token key atrule\">annotations<\/span><span class=\"token punctuation\">:<\/span><br \/>\n          <span class=\"token key atrule\">summary<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;High MySQL Connections&#034;<\/span><br \/>\n          <span class=\"token key atrule\">description<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;MySQL connections have exceeded 100 for more than 5 minutes.&#034;<\/span><\/p>\n<\/li>\n<li>\n<p>\u542f\u52a8Alertmanager&#xff1a;<\/p>\n<p>alertmanager <span class=\"token parameter variable\">&#8211;config.file<\/span><span class=\"token operator\">&#061;<\/span>alertmanager.yml<\/p>\n<\/li>\n<h4>\u603b\u7ed3<\/h4>\n<p>\u76d1\u63a7MySQL\u6d89\u53ca\u4f7f\u7528\u81ea\u5e26\u5de5\u5177\u3001Performance 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