{"id":164585,"date":"2024-11-05T09:08:23","date_gmt":"2024-11-05T01:08:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/164585\/"},"modified":"2024-11-05T09:08:24","modified_gmt":"2024-11-05T01:08:24","slug":"%e6%8f%aa%e5%87%bamysql%e5%bb%b6%e9%81%b2%e4%b8%8a%e5%8d%83%e7%a7%92%e7%9a%84%e5%85%83%e5%85%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/164585\/","title":{"rendered":"\u63ea\u51faMySQL\u5ef6\u9072\u4e0a\u5343\u79d2\u7684\u5143\u5147"},"content":{"rendered":"<h1 id=\"%e6%8f%aa%e5%87%bamysql%e5%bb%b6%e9%81%b2%e4%b8%8a%e5%8d%83%e7%a7%92%e7%9a%84%e5%85%83%e5%85%87-EMuMrsYAoD\">\u63ea\u51faMySQL\u5ef6\u9072\u4e0a\u5343\u79d2\u7684\u5143\u5147<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u8868\u73fe\u81f3\u95dc\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u96d6\u7136\u5176\u6027\u80fd\u512a\u8d8a\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u537b\u53ef\u80fd\u51fa\u73fe\u5ef6\u9072\u4e0a\u5343\u79d2\u7684\u60c5\u6cc1\u3002\u9019\u7a2e\u5ef6\u9072\u4e0d\u50c5\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u696d\u52d9\u640d\u5931\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u9020\u6210MySQL\u5ef6\u9072\u7684\u539f\u56e0\u4e26\u9032\u884c\u6709\u6548\u7684\u6392\u67e5\u662f\u6bcf\u4f4d\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u7684\u5fc5\u4fee\u8ab2\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84mysql%e5%bb%b6%e9%81%b2%e5%8e%9f%e5%9b%a0-EMuMrsYAoD\">\u5e38\u898b\u7684MySQL\u5ef6\u9072\u539f\u56e0<\/h2>\n<h3 id=\"1-%e6%9f%a5%e8%a9%a2%e6%95%88%e7%8e%87%e4%bd%8e%e4%b8%8b-EMuMrsYAoD\">1. \u67e5\u8a62\u6548\u7387\u4f4e\u4e0b<\/h3>\n<p>\u67e5\u8a62\u7684\u6548\u7387\u76f4\u63a5\u5f71\u97ff\u5230\u6578\u64da\u5eab\u7684\u97ff\u61c9\u6642\u9593\u3002\u8907\u96dc\u7684\u67e5\u8a62\u8a9e\u53e5\u3001\u7f3a\u4e4f\u7d22\u5f15\u6216\u4e0d\u7576\u7684\u7d22\u5f15\u4f7f\u7528\u90fd\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u901f\u5ea6\u7de9\u6162\u3002\u4f7f\u7528 <code>EXPLAIN<\/code> \u8a9e\u53e5\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<pre><code>EXPLAIN SELECT * FROM users WHERE age &gt; 30;<\/code><\/pre>\n<h3 id=\"2-%e9%8e%96%e7%ab%b6%e7%88%ad-EMuMrsYAoD\">2. \u9396\u7af6\u722d<\/h3>\n<p>\u5728\u9ad8\u4f75\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u9396\u7af6\u722d\u662f\u5c0e\u81f4\u5ef6\u9072\u7684\u53e6\u4e00\u500b\u4e3b\u8981\u539f\u56e0\u3002\u7576\u591a\u500b\u67e5\u8a62\u540c\u6642\u5617\u8a66\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u67d0\u4e9b\u67e5\u8a62\u88ab\u963b\u585e\u3002\u4f7f\u7528 <code>SHOW PROCESSLIST<\/code> \u53ef\u4ee5\u67e5\u770b\u7576\u524d\u6b63\u5728\u57f7\u884c\u7684\u67e5\u8a62\uff0c\u5e6b\u52a9\u8b58\u5225\u9396\u7af6\u722d\u7684\u60c5\u6cc1\u3002<\/p>\n<pre><code>SHOW PROCESSLIST;<\/code><\/pre>\n<h3 id=\"3-%e7%a1%ac%e9%ab%94%e8%b3%87%e6%ba%90%e4%b8%8d%e8%b6%b3-EMuMrsYAoD\">3. \u786c\u9ad4\u8cc7\u6e90\u4e0d\u8db3<\/h3>\n<p>MySQL\u7684\u6027\u80fd\u4e5f\u53d7\u5230\u786c\u9ad4\u8cc7\u6e90\u7684\u5f71\u97ff\u3002\u5982\u679c\u4f3a\u670d\u5668\u7684CPU\u3001\u5167\u5b58\u6216\u78c1\u789fI\/O\u6027\u80fd\u4e0d\u8db3\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u5ef6\u9072\u3002\u5b9a\u671f\u76e3\u63a7\u4f3a\u670d\u5668\u7684\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u5347\u7d1a\u662f\u5fc5\u8981\u7684\u3002<\/p>\n<h3 id=\"4-%e9%85%8d%e7%bd%ae%e4%b8%8d%e7%95%b6-EMuMrsYAoD\">4. \u914d\u7f6e\u4e0d\u7576<\/h3>\n<p>MySQL\u7684\u914d\u7f6e\u5c0d\u65bc\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u67d0\u4e9b\u53c3\u6578\u5982 <code>innodb_buffer_pool_size<\/code>\u3001<code>query_cache_size<\/code> \u7b49\u9700\u8981\u6839\u64da\u5be6\u969b\u7684\u5de5\u4f5c\u8ca0\u8f09\u9032\u884c\u8abf\u6574\u3002\u4f7f\u7528 <code>SHOW VARIABLES<\/code> \u53ef\u4ee5\u67e5\u770b\u7576\u524d\u7684\u914d\u7f6e\u53c3\u6578\u3002<\/p>\n<pre><code>SHOW VARIABLES LIKE 'innodb_buffer_pool_size';<\/code><\/pre>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%8e%92%e6%9f%a5mysql%e5%bb%b6%e9%81%b2%e5%95%8f%e9%a1%8c-EMuMrsYAoD\">\u5982\u4f55\u6392\u67e5MySQL\u5ef6\u9072\u554f\u984c<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e6%85%a2%e6%9f%a5%e8%a9%a2%e6%97%a5%e8%aa%8c-EMuMrsYAoD\">1. \u4f7f\u7528\u6162\u67e5\u8a62\u65e5\u8a8c<\/h3>\n<p>\u555f\u7528\u6162\u67e5\u8a62\u65e5\u8a8c\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u57f7\u884c\u6642\u9593\u904e\u9577\u7684\u67e5\u8a62\u3002\u901a\u904e\u5206\u6790\u9019\u4e9b\u67e5\u8a62\uff0c\u53ef\u4ee5\u91dd\u5c0d\u6027\u5730\u9032\u884c\u512a\u5316\u3002<\/p>\n<pre><code>SET GLOBAL slow_query_log = 'ON';<\/code><\/pre>\n<h3 id=\"2-%e7%9b%a3%e6%8e%a7%e5%b7%a5%e5%85%b7-EMuMrsYAoD\">2. \u76e3\u63a7\u5de5\u5177<\/h3>\n<p>\u4f7f\u7528\u76e3\u63a7\u5de5\u5177\u5982 <code>MySQL Enterprise Monitor<\/code> \u6216 <code>Percona Monitoring and Management<\/code> \u53ef\u4ee5\u5be6\u6642\u76e3\u63a7\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u53ca\u6642\u767c\u73fe\u554f\u984c\u3002<\/p>\n<h3 id=\"3-%e6%80%a7%e8%83%bd%e5%9f%ba%e6%ba%96%e6%b8%ac%e8%a9%a6-EMuMrsYAoD\">3. \u6027\u80fd\u57fa\u6e96\u6e2c\u8a66<\/h3>\n<p>\u5b9a\u671f\u9032\u884c\u6027\u80fd\u57fa\u6e96\u6e2c\u8a66\u53ef\u4ee5\u5e6b\u52a9\u4e86\u89e3\u6578\u64da\u5eab\u5728\u4e0d\u540c\u8ca0\u8f09\u4e0b\u7684\u8868\u73fe\uff0c\u4e26\u53ca\u6642\u8abf\u6574\u914d\u7f6e\u6216\u512a\u5316\u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-EMuMrsYAoD\">\u7d50\u8ad6<\/h2>\n<p>MySQL\u5ef6\u9072\u4e0a\u5343\u79d2\u7684\u554f\u984c\u53ef\u80fd\u7531\u591a\u7a2e\u56e0\u7d20\u5f15\u8d77\uff0c\u5305\u62ec\u67e5\u8a62\u6548\u7387\u3001\u9396\u7af6\u722d\u3001\u786c\u9ad4\u8cc7\u6e90\u4e0d\u8db3\u548c\u914d\u7f6e\u4e0d\u7576\u7b49\u3002\u901a\u904e\u4f7f\u7528\u6162\u67e5\u8a62\u65e5\u8a8c\u3001\u76e3\u63a7\u5de5\u5177\u548c\u6027\u80fd\u57fa\u6e96\u6e2c\u8a66\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6392\u67e5\u548c\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5eab\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4e5f\u662f\u63d0\u5347\u6027\u80fd\u7684\u91cd\u8981\u4e00\u74b0\u3002\u4e86\u89e3\u4e26\u89e3\u6c7aMySQL\u5ef6\u9072\u554f\u984c\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63ed\u793aMySQL\u5ef6\u9072\u4e0a\u5343\u79d2\u7684\u539f\u56e0\uff0c\u6df1\u5165\u5206\u6790\u6027\u80fd\u74f6\u9838\uff0c\u63d0\u4f9b\u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u60a8\u512a\u5316\u6578\u64da\u5eab\u6548\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-164585","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=164585"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164585\/revisions"}],"predecessor-version":[{"id":164586,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164585\/revisions\/164586"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=164585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=164585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=164585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}