{"id":36761,"date":"2025-04-11T14:57:49","date_gmt":"2025-04-11T06:57:49","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=36761"},"modified":"2025-04-11T14:57:49","modified_gmt":"2025-04-11T06:57:49","slug":"%e5%ba%94%e7%94%a8%e6%95%85%e9%9a%9c%e5%ae%9a%e4%bd%8d%e4%b8%ad%e5%a6%82%e4%bd%95%e5%88%86%e6%9e%90%e6%95%b0%e6%8d%ae%e5%ba%93%e9%97%ae%e9%a2%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/36761.html","title":{"rendered":"\u5e94\u7528\u6545\u969c\u5b9a\u4f4d\u4e2d\u5982\u4f55\u5206\u6790\u6570\u636e\u5e93\u95ee\u9898\uff1f"},"content":{"rendered":"<p style=\"text-align: center;\">\n<p><img decoding=\"async\" src=\"https:\/\/www.yunshan.net\/blog\/wp-content\/uploads\/2025\/04\/tKzm43P6.jpg\" alt=\"\u5e94\u7528\u6545\u969c\u5b9a\u4f4d\u4e2d\u5982\u4f55\u5206\u6790\u6570\u636e\u5e93\u95ee\u9898\uff1f\" ><\/p>\n<\/p>\n<h3 id=\"\u524d\u8a00\">\u524d\u8a00<\/h3>\n<p>\u5728\u6570\u5b57\u5316\u7cfb\u7edf\u7684\u8fd0\u884c\u4e2d\uff0c\u6570\u636e\u5e93\u4f5c\u4e3a\u6838\u5fc3\u6570\u636e\u5b58\u50a8\u4e0e\u5904\u7406\u5f15\u64ce\uff0c\u5176\u7a33\u5b9a\u6027\u76f4\u63a5\u5f71\u54cd\u5e94\u7528\u7684\u53ef\u7528\u6027\u3002\u636e\u7edf\u8ba1\uff0c<strong>\u8d85\u8fc740%\u7684\u5e94\u7528\u6545\u969c\u4e0e\u6570\u636e\u5e93\u6027\u80fd\u6216\u8bbe\u8ba1\u7f3a\u9677\u76f8\u5173<\/strong>\u3002\u7136\u800c\uff0c\u9762\u5bf9\u590d\u6742\u7684\u4e1a\u52a1\u573a\u666f\u548c\u9ad8\u5e76\u53d1\u538b\u529b\uff0c\u6570\u636e\u5e93\u95ee\u9898\u7684\u5b9a\u4f4d\u5f80\u5f80\u6210\u4e3a\u6280\u672f\u56e2\u961f\u7684\u201c\u75db\u70b9\u201d\u2014\u2014\u5b83\u53ef\u80fd\u9690\u85cf\u5728\u4ee3\u7801\u903b\u8f91\u3001\u914d\u7f6e\u53c2\u6570\u751a\u81f3\u786c\u4ef6\u8d44\u6e90\u4e2d\u3002\u5982\u4f55\u5feb\u901f\u9501\u5b9a\u95ee\u9898\u6839\u6e90\u5e76\u9ad8\u6548\u89e3\u51b3\uff1f\u672c\u6587\u5c06\u56f4\u7ed5<strong><a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">\u5e94\u7528\u6545\u969c\u5b9a\u4f4d<\/a>\u4e2d\u7684\u6570\u636e\u5e93\u95ee\u9898\u5206\u6790\u65b9\u6cd5<\/strong>\uff0c\u7ed3\u5408\u5b9e\u6218\u7ecf\u9a8c\uff0c\u4ece\u6392\u67e5\u601d\u8def\u3001\u5de5\u5177\u4f7f\u7528\u5230\u4f18\u5316\u7b56\u7565\uff0c\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e00\u5957\u7cfb\u7edf\u5316\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<hr>\n<h3 id=\"\u4e00-\u6570\u636e\u5e93\u95ee\u9898\u7684\u5e38\u89c1\u7c7b\u578b\u4e0e\u5f71\u54cd\">\u4e00\u3001\u6570\u636e\u5e93\u95ee\u9898\u7684\u5e38\u89c1\u7c7b\u578b\u4e0e\u5f71\u54cd<\/h3>\n<p>\u5728<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">\u5e94\u7528\u6545\u969c\u5b9a\u4f4d<\/a>\u4e2d\uff0c\u6570\u636e\u5e93\u95ee\u9898\u901a\u5e38\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7c7b\uff1a<\/p>\n<ol>\n<li><strong>\u6027\u80fd\u74f6\u9888<\/strong>\n<\/li>\n<\/ol>\n<ul>\n<li><em>\u9ad8\u5ef6\u8fdf\u67e5\u8be2<\/em>\uff1a\u6162SQL\u5bfc\u81f4\u63a5\u53e3\u54cd\u5e94\u65f6\u95f4\u9661\u589e\uff0c\u751a\u81f3\u89e6\u53d1\u8d85\u65f6\u3002\n<\/li>\n<li><em>\u9501\u7ade\u4e89<\/em>\uff1a\u4e8b\u52a1\u672a\u5408\u7406\u8bbe\u8ba1\u5f15\u53d1\u7684\u6b7b\u9501\u6216\u884c\u9501\u51b2\u7a81\u3002\n<\/li>\n<\/ul>\n<ol>\n<li><strong>\u8fde\u63a5\u5f02\u5e38<\/strong>\n<\/li>\n<\/ol>\n<ul>\n<li>\u8fde\u63a5\u6c60\u8017\u5c3d\u3001\u7f51\u7edc\u95ea\u65ad\u6216\u8ba4\u8bc1\u5931\u8d25\u5bfc\u81f4\u7684\u8fde\u63a5\u4e2d\u65ad\u3002\n<\/li>\n<\/ul>\n<ol>\n<li><strong>\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898<\/strong>\n<\/li>\n<\/ol>\n<ul>\n<li>\u4e8b\u52a1\u672a\u6b63\u786e\u63d0\u4ea4\u3001\u4e3b\u4ece\u540c\u6b65\u5ef6\u8fdf\u6216\u7f13\u5b58\u4e0e\u6570\u636e\u5e93\u6570\u636e\u4e0d\u4e00\u81f4\u3002\n<\/li>\n<\/ul>\n<ol>\n<li><strong>\u8d44\u6e90\u8d85\u9650<\/strong>\n<\/li>\n<\/ol>\n<ul>\n<li>\u5185\u5b58\u6ea2\u51fa\u3001\u78c1\u76d8\u7a7a\u95f4\u4e0d\u8db3\u6216CPU\u5360\u7528\u7387\u6301\u7eed\u9ad8\u4f4d\u8fd0\u884c\u3002\n<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u95ee\u9898\u8f7b\u5219\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\uff0c\u91cd\u5219\u5bfc\u81f4\u670d\u52a1\u96ea\u5d29\u3002\u4f8b\u5982\uff0c\u67d0\u7535\u5546\u5e73\u53f0\u7684\u4fc3\u9500\u6d3b\u52a8\u56e0\u672a\u5bf9\u9ad8\u9891\u67e5\u8be2\u7684SQL\u505a\u7d22\u5f15\u4f18\u5316\uff0c\u5bfc\u81f4\u6570\u636e\u5e93CPU\u98d9\u5347\u81f395%\uff0c\u6700\u7ec8\u5f15\u53d1\u9875\u9762\u8d85\u65f6\u5d29\u6e83\u3002<\/p>\n<hr>\n<h3 id=\"\u4e8c-\u7cfb\u7edf\u5316\u6392\u67e5\u6d41\u7a0b-\u4ece\u73b0\u8c61\u5230\u6839\u6e90\">\u4e8c\u3001\u7cfb\u7edf\u5316\u6392\u67e5\u6d41\u7a0b\uff1a\u4ece\u73b0\u8c61\u5230\u6839\u6e90<\/h3>\n<h4 id=\"\u6b65\u9aa41-\u786e\u8ba4\u95ee\u9898\u8fb9\u754c\"><strong>\u6b65\u9aa41\uff1a\u786e\u8ba4\u95ee\u9898\u8fb9\u754c<\/strong><\/h4>\n<p>\u901a\u8fc7\u76d1\u63a7\u5de5\u5177\uff08\u5982<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\u3001Zabbix\uff09\u5feb\u901f\u5224\u65ad\u6545\u969c\u662f\u5426\u7531\u6570\u636e\u5e93\u5f15\u8d77\uff1a<\/p>\n<ul>\n<li>\u68c0\u67e5\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8I\/O\u6307\u6807\u662f\u5426\u5f02\u5e38\u3002\n<\/li>\n<li>\u5206\u6790\u5e94\u7528\u65e5\u5fd7\u4e2d\u7684\u9519\u8bef\u4fe1\u606f\uff08\u5982JDBC\u8fde\u63a5\u8d85\u65f6\u3001SQL\u8bed\u6cd5\u9519\u8bef\uff09\u3002\n<\/li>\n<li><em>\u793a\u4f8b<\/em>\uff1a\u82e5\u5e94\u7528\u65e5\u5fd7\u9891\u7e41\u51fa\u73b0\u201cORA-12170: TNS\u8fde\u63a5\u8d85\u65f6\u201d\uff0c\u9700\u4f18\u5148\u6392\u67e5\u7f51\u7edc\u6216\u9632\u706b\u5899\u914d\u7f6e\u3002\n<\/li>\n<\/ul>\n<h4 id=\"\u6b65\u9aa42-\u805a\u7126\u6162\u67e5\u8be2\u4e0e\u6267\u884c\u8ba1\u5212\"><strong>\u6b65\u9aa42\uff1a\u805a\u7126\u6162\u67e5\u8be2\u4e0e\u6267\u884c\u8ba1\u5212<\/strong><\/h4>\n<p><strong>\u6162\u67e5\u8be2\u662f\u6570\u636e\u5e93\u6027\u80fd\u7684\u201c\u5934\u53f7\u6740\u624b\u201d<\/strong>\u3002\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9a\u4f4d\u95ee\u9898SQL\uff1a<\/p>\n<ol>\n<li>\u542f\u7528\u6570\u636e\u5e93\u6162\u67e5\u8be2\u65e5\u5fd7\uff08\u5982MySQL\u7684<code>slow_query_log<\/code>\uff09\u3002\n<\/li>\n<li>\u4f7f\u7528<code>EXPLAIN<\/code>\u547d\u4ee4\u5206\u6790SQL\u6267\u884c\u8ba1\u5212\uff0c\u5173\u6ce8\u5168\u8868\u626b\u63cf\uff08<code>ALL<\/code>\uff09\u3001\u4e34\u65f6\u8868\uff08<code>Using temporary<\/code>\uff09\u7b49\u9ad8\u98ce\u9669\u64cd\u4f5c\u3002\n<\/li>\n<li>\u7ed3\u5408APM\u5de5\u5177\uff08\u5982<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">SkyWalking<\/a>\u3001Arthas\uff09\u8ffd\u8e2a\u8c03\u7528\u94fe\uff0c\u786e\u8ba4\u6162SQL\u7684\u89e6\u53d1\u8def\u5f84\u3002\n<\/li>\n<\/ol>\n<p><em>\u6848\u4f8b<\/em>\uff1a\u67d0\u91d1\u878d\u7cfb\u7edf\u62a5\u8868\u67e5\u8be2\u8017\u65f6\u4ece2\u79d2\u7a81\u589e\u81f320\u79d2\uff0c\u7ecf\u6267\u884c\u8ba1\u5212\u5206\u6790\u53d1\u73b0\uff0c\u7531\u4e8e\u7edf\u8ba1\u6761\u4ef6\u672a\u547d\u4e2d\u8054\u5408\u7d22\u5f15\uff0c\u5bfc\u81f4\u4f18\u5316\u5668\u9009\u62e9\u4e86\u4f4e\u6548\u7684\u5168\u8868\u626b\u63cf\u8def\u5f84\u3002<\/p>\n<h4 id=\"\u6b65\u9aa43-\u68c0\u67e5\u4e8b\u52a1\u4e0e\u9501\u673a\u5236\"><strong>\u6b65\u9aa43\uff1a\u68c0\u67e5\u4e8b\u52a1\u4e0e\u9501\u673a\u5236<\/strong><\/h4>\n<p>\u5bf9\u4e8e\u5e76\u53d1\u573a\u666f\u4e0b\u7684\u6570\u636e\u4e0d\u4e00\u81f4\u6216\u54cd\u5e94\u5ef6\u8fdf\uff0c\u9700\u6392\u67e5\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u4e0e\u9501\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528<code>SHOW ENGINE INNODB STATUS<\/code>\uff08MySQL\uff09\u6216<code>sp_lock<\/code>\uff08SQL Server\uff09\u67e5\u770b\u5f53\u524d\u9501\u72b6\u6001\u3002\n<\/li>\n<li>\u907f\u514d\u957f\u4e8b\u52a1\uff1a\u786e\u4fdd\u4e8b\u52a1\u8303\u56f4\u6700\u5c0f\u5316\uff0c\u5fc5\u8981\u65f6\u5f15\u5165\u4e50\u89c2\u9501\u6216\u5206\u5e03\u5f0f\u9501\u3002\n<\/li>\n<\/ul>\n<h4 id=\"\u6b65\u9aa44-\u9a8c\u8bc1\u8d44\u6e90\u4e0e\u914d\u7f6e\"><strong>\u6b65\u9aa44\uff1a\u9a8c\u8bc1\u8d44\u6e90\u4e0e\u914d\u7f6e<\/strong><\/h4>\n<ul>\n<li><strong>\u8fde\u63a5\u6c60\u914d\u7f6e<\/strong>\uff1a\u68c0\u67e5\u6700\u5927\u8fde\u63a5\u6570\u662f\u5426\u5408\u7406\uff0c\u907f\u514d\u8fde\u63a5\u6cc4\u6f0f\uff08\u5982\u672a\u5173\u95ed\u7684ResultSet\u6216Connection\uff09\u3002\n<\/li>\n<li><strong>\u786c\u4ef6\u74f6\u9888<\/strong>\uff1a\u901a\u8fc7<code>iostat<\/code>\u3001<code>vmstat<\/code>\u76d1\u63a7\u78c1\u76d8\u541e\u5410\u91cf\uff0c\u786e\u8ba4\u662f\u5426\u5b58\u5728I\/O\u7b49\u5f85\u95ee\u9898\u3002\n<\/li>\n<\/ul>\n<hr>\n<h3 id=\"\u4e09-\u5de5\u5177\u94fe\u652f\u6301-\u7cbe\u51c6\u5b9a\u4f4d\u95ee\u9898\u7684\u5229\u5668\">\u4e09\u3001\u5de5\u5177\u94fe\u652f\u6301\uff1a\u7cbe\u51c6\u5b9a\u4f4d\u95ee\u9898\u7684\u5229\u5668<\/h3>\n<ol>\n<li><strong>\u76d1\u63a7\u544a\u8b66\u5e73\u53f0<\/strong>\n<\/li>\n<\/ol>\n<ul>\n<li>\u57fa\u7840\u8bbe\u65bd\u5c42\uff1a\u4f7f\u7528<strong>Grafana+<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a><\/strong>\u5b9e\u65f6\u76d1\u63a7\u6570\u636e\u5e93\u8d1f\u8f7d\u3002\n<\/li>\n<li>\u5e94\u7528\u5c42\uff1a\u901a\u8fc7<strong>Elastic APM<\/strong>\u6355\u83b7SQL\u6267\u884c\u8017\u65f6\u4e0e\u8c03\u7528\u9891\u7387\u3002\n<\/li>\n<\/ul>\n<ol>\n<li><strong>SQL\u5206\u6790\u5de5\u5177<\/strong>\n<\/li>\n<\/ol>\n<ul>\n<li><strong>pt-query-digest<\/strong>\uff1a\u89e3\u6790MySQL\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u751f\u6210\u7edf\u8ba1\u62a5\u544a\u3002\n<\/li>\n<li><strong>pg_stat_statements<\/strong>\uff08PostgreSQL\uff09\uff1a\u8bb0\u5f55SQL\u6267\u884c\u65f6\u95f4\u4e0e\u8d44\u6e90\u6d88\u8017\u3002\n<\/li>\n<\/ul>\n<ol>\n<li><strong>\u4eff\u771f\u538b\u6d4b<\/strong><br \/>\n\u5229\u7528<strong>JMeter<\/strong>\u6216<strong>Sysbench<\/strong>\u6a21\u62df\u9ad8\u5e76\u53d1\u573a\u666f\uff0c\u9a8c\u8bc1\u6570\u636e\u5e93\u5728\u6781\u9650\u538b\u529b\u4e0b\u7684\u8868\u73b0\u3002\n<\/li>\n<\/ol>\n<hr>\n<h3 id=\"\u56db-\u4f18\u5316\u7b56\u7565-\u4ece\u6cbb\u6807\u5230\u6cbb\u672c\">\u56db\u3001\u4f18\u5316\u7b56\u7565\uff1a\u4ece\u6cbb\u6807\u5230\u6cbb\u672c<\/h3>\n<h4 id=\"1-\u7d22\u5f15\u4f18\u5316-\u5e73\u8861\u67e5\u8be2\u6548\u7387\u4e0e\u5199\u5165\u6210\u672c\"><strong>1. \u7d22\u5f15\u4f18\u5316\uff1a\u5e73\u8861\u67e5\u8be2\u6548\u7387\u4e0e\u5199\u5165\u6210\u672c<\/strong><\/h4>\n<ul>\n<li>\u9075\u5faa<strong>\u6700\u5de6\u524d\u7f00\u539f\u5219<\/strong>\u8bbe\u8ba1\u590d\u5408\u7d22\u5f15\u3002\n<\/li>\n<li>\u5b9a\u671f\u4f7f\u7528<code>OPTIMIZE TABLE<\/code>\uff08MySQL\uff09\u6216<code>REINDEX<\/code>\uff08PostgreSQL\uff09\u4fee\u590d\u7d22\u5f15\u788e\u7247\u3002\n<\/li>\n<li><em>\u7981\u5fcc<\/em>\uff1a\u907f\u514d\u8fc7\u5ea6\u7d22\u5f15\uff0c\u5c24\u5176\u5bf9\u9891\u7e41\u66f4\u65b0\u7684\u8868\u3002\n<\/li>\n<\/ul>\n<h4 id=\"2-\u67e5\u8be2\u91cd\u6784\u4e0e\u5206\u9875\u4f18\u5316\"><strong>2. \u67e5\u8be2\u91cd\u6784\u4e0e\u5206\u9875\u4f18\u5316<\/strong><\/h4>\n<ul>\n<li>\u5c06\u5927\u67e5\u8be2\u62c6\u5206\u4e3a\u591a\u4e2a\u5b50\u67e5\u8be2\uff0c\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f7d\u8fc7\u591a\u6570\u636e\u3002\n<\/li>\n<li>\u4f7f\u7528<strong>\u6e38\u6807\u5206\u9875<\/strong>\uff08Cursor-based Pagination\uff09\u66ff\u4ee3<code>LIMIT offset<\/code>\uff0c\u51cf\u5c11\u6df1\u5206\u9875\u7684\u6027\u80fd\u5f00\u9500\u3002\n<\/li>\n<\/ul>\n<h4 id=\"3-\u67b6\u6784\u5347\u7ea7\"><strong>3. \u67b6\u6784\u5347\u7ea7<\/strong><\/h4>\n<ul>\n<li>\u8bfb\u5199\u5206\u79bb\uff1a\u901a\u8fc7<strong>\u4e3b\u4ece\u590d\u5236<\/strong>\u5206\u62c5\u8bfb\u538b\u529b\u3002\n<\/li>\n<li>\u5206\u5e93\u5206\u8868\uff1a\u5bf9\u4ebf\u7ea7\u6570\u636e\u8868\u91c7\u7528\u6c34\u5e73\u62c6\u5206\uff08\u5982ShardingSphere\uff09\u3002\n<\/li>\n<li>\u5f15\u5165\u7f13\u5b58\u5c42\uff1a\u4f7f\u7528Redis\u6216Memcached\u964d\u4f4e\u9ad8\u9891\u67e5\u8be2\u5bf9\u6570\u636e\u5e93\u7684\u76f4\u63a5\u51b2\u51fb\u3002\n<\/li>\n<\/ul>\n<hr>\n<h3 id=\"\u4e94-\u5b9e\u6218\u6848\u4f8b\u5206\u6790\">\u4e94\u3001\u5b9e\u6218\u6848\u4f8b\u5206\u6790<\/h3>\n<p><strong>\u80cc\u666f<\/strong>\uff1a\u67d0\u793e\u4ea4\u5e73\u53f0\u7684\u6d88\u606f\u63a8\u9001\u670d\u52a1\u5728\u665a\u9ad8\u5cf0\u671f\u95f4\u51fa\u73b0\u5927\u9762\u79ef\u5ef6\u8fdf\uff0c\u7528\u6237\u6295\u8bc9\u6fc0\u589e\u3002<br \/>\n<strong>\u6392\u67e5\u8fc7\u7a0b<\/strong>\uff1a<\/p>\n<ol>\n<li>\u76d1\u63a7\u663e\u793a\u6570\u636e\u5e93\u4e3b\u8282\u70b9\u7684CPU\u4f7f\u7528\u7387\u6301\u7eed\u8d85\u8fc790%\u3002\n<\/li>\n<li>\u901a\u8fc7\u6162\u67e5\u8be2\u65e5\u5fd7\u5b9a\u4f4d\u5230\u4e00\u6761\u672a\u547d\u4e2d\u7d22\u5f15\u7684<code>SELECT ... WHERE user_id IN (...)<\/code>\u8bed\u53e5\uff0c\u8be5SQL\u5e73\u5747\u6267\u884c\u65f6\u95f4\u8fbe800ms\u3002\n<\/li>\n<li>\u6267\u884c\u8ba1\u5212\u663e\u793a\u4f18\u5316\u5668\u9009\u62e9\u4e86\u5168\u8868\u626b\u63cf\uff08<code>type=ALL<\/code>\uff09\uff0c\u56e0<code>user_id<\/code>\u5b57\u6bb5\u672a\u5efa\u7acb\u7d22\u5f15\u3002<br \/>\n<strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\n<\/li>\n<\/ol>\n<ul>\n<li>\u4e3a<code>user_id<\/code>\u6dfb\u52a0\u7d22\u5f15\u540e\uff0cSQL\u6267\u884c\u65f6\u95f4\u964d\u81f320ms\u3002\n<\/li>\n<li>\u8fdb\u4e00\u6b65\u4f18\u5316\u4ee3\u7801\u903b\u8f91\uff0c\u5c06\u6279\u91cf\u67e5\u8be2\u6539\u4e3a\u5206\u6279\u6267\u884c\uff0c\u907f\u514d\u5355\u6b21\u52a0\u8f7d\u8fc7\u591a\u6570\u636e\u3002<br \/>\n<strong>\u7ed3\u679c<\/strong>\uff1a\u6570\u636e\u5e93CPU\u4f7f\u7528\u7387\u56de\u843d\u81f330%\uff0c\u63a8\u9001\u5ef6\u8fdf\u95ee\u9898\u5b8c\u5168\u89e3\u51b3\u3002\n<\/li>\n<\/ul>\n<hr>\n<h3 id=\"\u516d-\u603b\u7ed3\u4e0e\u5efa\u8bae\">\u516d\u3001\u603b\u7ed3\u4e0e\u5efa\u8bae<\/h3>\n<p>\u6570\u636e\u5e93\u95ee\u9898\u7684\u5206\u6790\u9700\u7ed3\u5408<strong>\u76d1\u63a7\u6570\u636e\u3001\u6267\u884c\u8ba1\u5212\u4e0e\u4e1a\u52a1\u573a\u666f<\/strong>\uff0c\u5f62\u6210\u95ed\u73af\u6392\u67e5\u94fe\u8def\u3002\u6280\u672f\u56e2\u961f\u5e94\u5efa\u7acb\u4ee5\u4e0b\u4e60\u60ef\uff1a<\/p>\n<ul>\n<li><strong>\u5e38\u6001\u5316\u6162SQL\u5de1\u68c0<\/strong>\uff1a\u6bcf\u5468\u81f3\u5c11\u5206\u6790\u4e00\u6b21\u6162\u67e5\u8be2\u65e5\u5fd7\u3002\n<\/li>\n<li><strong>\u538b\u6d4b\u9a8c\u8bc1<\/strong>\uff1a\u91cd\u5927\u529f\u80fd\u4e0a\u7ebf\u524d\uff0c\u8fdb\u884c\u5168\u94fe\u8def\u538b\u529b\u6d4b\u8bd5\u3002\n<\/li>\n<li><strong>\u6587\u6863\u6c89\u6dc0<\/strong>\uff1a\u5c06\u5178\u578b\u95ee\u9898\u7684\u5206\u6790\u8fc7\u7a0b\u6574\u7406\u4e3a\u6848\u4f8b\u5e93\uff0c\u52a0\u901f\u56e2\u961f\u7ecf\u9a8c\u590d\u7528\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u5728\u6570\u5b57\u5316\u7cfb\u7edf\u7684\u8fd0\u884c\u4e2d\uff0c\u6570\u636e\u5e93\u4f5c\u4e3a\u6838\u5fc3\u6570\u636e\u5b58\u50a8\u4e0e\u5904\u7406\u5f15\u64ce\uff0c\u5176\u7a33\u5b9a\u6027\u76f4\u63a5\u5f71\u54cd\u5e94\u7528\u7684\u53ef\u7528\u6027\u3002\u636e\u7edf\u8ba1\uff0c\u8d85\u8fc740%\u7684\u5e94\u7528\u6545\u969c\u4e0e\u6570\u636e\u5e93\u6027\u80fd\u6216\u8bbe\u8ba1\u7f3a\u9677\u76f8\u5173\u3002\u7136\u800c\uff0c\u9762\u5bf9\u590d\u6742\u7684\u4e1a\u52a1\u573a\u666f\u548c\u9ad8\u5e76\u53d1\u538b\u529b\uff0c\u6570\u636e\u5e93\u95ee\u9898\u7684\u5b9a\u4f4d\u5f80\u5f80\u6210\u4e3a\u6280\u672f\u56e2\u961f\u7684\u201c\u75db\u70b9\u201d\u2014\u2014\u5b83\u53ef\u80fd\u9690\u85cf\u5728\u4ee3\u7801\u903b\u8f91\u3001\u914d\u7f6e\u53c2\u6570\u751a\u81f3\u786c\u4ef6\u8d44\u6e90\u4e2d\u3002\u5982\u4f55\u5feb\u901f\u9501\u5b9a\u95ee\u9898\u6839\u6e90\u5e76\u9ad8\u6548\u89e3\u51b3\uff1f\u672c\u6587\u5c06\u56f4\u7ed5\u5e94\u7528\u6545\u969c\u5b9a\u4f4d\u4e2d\u7684\u6570\u636e\u5e93\u95ee\u9898\u5206\u6790\u65b9\u6cd5\uff0c\u7ed3\u5408\u5b9e\u6218\u7ecf\u9a8c\uff0c\u4ece\u6392\u67e5\u601d\u8def\u3001\u5de5\u5177\u4f7f\u7528\u5230\u4f18\u5316\u7b56\u7565\uff0c\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e00\u5957\u7cfb\u7edf\u5316\u7684\u89e3\u51b3\u65b9\u6848\u3002 \u4e00\u3001\u6570\u636e\u5e93\u95ee\u9898\u7684\u5e38\u89c1\u7c7b\u578b\u4e0e\u5f71\u54cd \u5728\u5e94\u7528\u6545\u969c\u5b9a\u4f4d\u4e2d\uff0c\u6570\u636e\u5e93\u95ee\u9898\u901a\u5e38\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7c7b\uff1a \u6027\u80fd\u74f6\u9888 \u9ad8\u5ef6\u8fdf\u67e5\u8be2\uff1a\u6162SQL\u5bfc\u81f4\u63a5\u53e3\u54cd\u5e94\u65f6\u95f4\u9661\u589e\uff0c\u751a\u81f3\u89e6\u53d1\u8d85\u65f6\u3002 \u9501\u7ade\u4e89\uff1a\u4e8b\u52a1\u672a\u5408\u7406\u8bbe\u8ba1\u5f15\u53d1\u7684\u6b7b\u9501\u6216\u884c\u9501\u51b2\u7a81\u3002 \u8fde\u63a5\u5f02\u5e38 \u8fde\u63a5\u6c60\u8017\u5c3d\u3001\u7f51\u7edc\u95ea\u65ad\u6216\u8ba4\u8bc1\u5931\u8d25\u5bfc\u81f4\u7684\u8fde\u63a5\u4e2d\u65ad\u3002 \u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898 \u4e8b\u52a1\u672a\u6b63\u786e\u63d0\u4ea4\u3001\u4e3b\u4ece\u540c\u6b65\u5ef6\u8fdf\u6216\u7f13\u5b58\u4e0e\u6570\u636e\u5e93\u6570\u636e\u4e0d\u4e00\u81f4\u3002 \u8d44\u6e90\u8d85\u9650 \u5185\u5b58\u6ea2\u51fa\u3001\u78c1\u76d8\u7a7a\u95f4\u4e0d\u8db3\u6216CPU\u5360\u7528\u7387\u6301\u7eed\u9ad8\u4f4d\u8fd0\u884c\u3002 \u8fd9\u4e9b\u95ee\u9898\u8f7b\u5219\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\uff0c\u91cd\u5219\u5bfc\u81f4\u670d\u52a1\u96ea\u5d29\u3002\u4f8b\u5982\uff0c\u67d0\u7535\u5546\u5e73\u53f0\u7684\u4fc3\u9500\u6d3b\u52a8\u56e0\u672a\u5bf9\u9ad8\u9891\u67e5\u8be2\u7684SQL\u505a\u7d22\u5f15\u4f18\u5316\uff0c\u5bfc\u81f4\u6570\u636e\u5e93CPU\u98d9\u5347\u81f395%\uff0c\u6700\u7ec8\u5f15\u53d1\u9875\u9762\u8d85\u65f6\u5d29\u6e83\u3002 \u4e8c\u3001\u7cfb\u7edf\u5316\u6392\u67e5\u6d41\u7a0b\uff1a\u4ece\u73b0\u8c61\u5230\u6839\u6e90 \u6b65\u9aa41\uff1a\u786e\u8ba4\u95ee\u9898\u8fb9\u754c \u901a\u8fc7\u76d1\u63a7\u5de5\u5177\uff08\u5982Prometheus\u3001Zabbix\uff09\u5feb\u901f\u5224\u65ad\u6545\u969c\u662f\u5426\u7531\u6570\u636e\u5e93\u5f15\u8d77\uff1a \u68c0\u67e5\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8I\/O\u6307\u6807\u662f\u5426\u5f02\u5e38\u3002 \u5206\u6790\u5e94\u7528\u65e5\u5fd7\u4e2d\u7684\u9519\u8bef\u4fe1\u606f\uff08\u5982JDBC\u8fde\u63a5\u8d85\u65f6\u3001SQL\u8bed\u6cd5\u9519\u8bef\uff09\u3002 \u793a\u4f8b\uff1a\u82e5\u5e94\u7528\u65e5\u5fd7\u9891\u7e41\u51fa\u73b0\u201cORA-12170: TNS\u8fde\u63a5\u8d85\u65f6\u201d\uff0c\u9700\u4f18\u5148\u6392\u67e5\u7f51\u7edc\u6216\u9632\u706b\u5899\u914d\u7f6e\u3002 \u6b65\u9aa42\uff1a\u805a\u7126\u6162\u67e5\u8be2\u4e0e\u6267\u884c\u8ba1\u5212 \u6162\u67e5\u8be2\u662f\u6570\u636e\u5e93\u6027\u80fd\u7684\u201c\u5934\u53f7\u6740\u624b\u201d\u3002\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9a\u4f4d\u95ee\u9898SQL\uff1a \u542f\u7528\u6570\u636e\u5e93\u6162\u67e5\u8be2\u65e5\u5fd7\uff08\u5982MySQL\u7684slow_query_log\uff09\u3002 \u4f7f\u7528EXPLAIN\u547d\u4ee4\u5206\u6790SQL\u6267\u884c\u8ba1\u5212\uff0c\u5173\u6ce8\u5168\u8868\u626b\u63cf\uff08ALL\uff09\u3001\u4e34\u65f6\u8868\uff08Using temporary\uff09\u7b49\u9ad8\u98ce\u9669\u64cd\u4f5c\u3002 \u7ed3\u5408APM\u5de5\u5177\uff08\u5982SkyWalking\u3001Arthas\uff09\u8ffd\u8e2a\u8c03\u7528\u94fe\uff0c\u786e\u8ba4\u6162SQL\u7684\u89e6\u53d1\u8def\u5f84\u3002 \u6848\u4f8b\uff1a\u67d0\u91d1\u878d\u7cfb\u7edf\u62a5\u8868\u67e5\u8be2\u8017\u65f6\u4ece2\u79d2\u7a81\u589e\u81f320\u79d2\uff0c\u7ecf\u6267\u884c\u8ba1\u5212\u5206\u6790\u53d1\u73b0\uff0c\u7531\u4e8e\u7edf\u8ba1\u6761\u4ef6\u672a\u547d\u4e2d\u8054\u5408\u7d22\u5f15\uff0c\u5bfc\u81f4\u4f18\u5316\u5668\u9009\u62e9\u4e86\u4f4e\u6548\u7684\u5168\u8868\u626b\u63cf\u8def\u5f84\u3002 \u6b65\u9aa43\uff1a\u68c0\u67e5\u4e8b\u52a1\u4e0e\u9501\u673a\u5236 \u5bf9\u4e8e\u5e76\u53d1\u573a\u666f\u4e0b\u7684\u6570\u636e\u4e0d\u4e00\u81f4\u6216\u54cd\u5e94\u5ef6\u8fdf\uff0c\u9700\u6392\u67e5\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u4e0e\u9501\u4f7f\u7528\uff1a \u4f7f\u7528SHOW ENGINE INNODB STATUS\uff08MySQL\uff09\u6216sp_lock\uff08SQL Server\uff09\u67e5\u770b\u5f53\u524d\u9501\u72b6\u6001\u3002 \u907f\u514d\u957f\u4e8b\u52a1\uff1a\u786e\u4fdd\u4e8b\u52a1\u8303\u56f4\u6700\u5c0f\u5316\uff0c\u5fc5\u8981\u65f6\u5f15\u5165\u4e50\u89c2\u9501\u6216\u5206\u5e03\u5f0f\u9501\u3002 \u6b65\u9aa44\uff1a\u9a8c\u8bc1\u8d44\u6e90\u4e0e\u914d\u7f6e \u8fde\u63a5\u6c60\u914d\u7f6e\uff1a\u68c0\u67e5\u6700\u5927\u8fde\u63a5\u6570\u662f\u5426\u5408\u7406\uff0c\u907f\u514d\u8fde\u63a5\u6cc4\u6f0f\uff08\u5982\u672a\u5173\u95ed\u7684ResultSet\u6216Connection\uff09\u3002 \u786c\u4ef6\u74f6\u9888\uff1a\u901a\u8fc7iostat\u3001vmstat\u76d1\u63a7\u78c1\u76d8\u541e\u5410\u91cf\uff0c\u786e\u8ba4\u662f\u5426\u5b58\u5728I\/O\u7b49\u5f85\u95ee\u9898\u3002 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