{"id":75798,"date":"2024-10-16T01:19:25","date_gmt":"2024-10-15T17:19:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75798\/"},"modified":"2024-10-16T01:19:25","modified_gmt":"2024-10-15T17:19:25","slug":"mysql-%e6%9f%a5%e8%a9%a2%e8%b6%85%e6%99%82%e5%95%8f%e9%a1%8c%e7%9a%84%e8%a7%a3%e6%b1%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75798\/","title":{"rendered":"MySQL \u67e5\u8a62\u8d85\u6642\u554f\u984c\u7684\u89e3\u6c7a"},"content":{"rendered":"<h1 id=\"mysql-%e6%9f%a5%e8%a9%a2%e8%b6%85%e6%99%82%e5%95%8f%e9%a1%8c%e7%9a%84%e8%a7%a3%e6%b1%ba-ShfGBYjYmW\">MySQL \u67e5\u8a62\u8d85\u6642\u554f\u984c\u7684\u89e3\u6c7a<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u6642\uff0c\u67e5\u8a62\u8d85\u6642\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u63a2\u8a0e MySQL \u67e5\u8a62\u8d85\u6642\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e8%b6%85%e6%99%82%e7%9a%84%e5%8e%9f%e5%9b%a0-ShfGBYjYmW\">\u67e5\u8a62\u8d85\u6642\u7684\u539f\u56e0<\/h2>\n<p>\u67e5\u8a62\u8d85\u6642\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u8907\u96dc\u7684\u67e5\u8a62\uff1a<\/strong>\u7576\u67e5\u8a62\u6d89\u53ca\u591a\u500b\u8868\u7684\u806f\u63a5\u6216\u5927\u91cf\u6578\u64da\u7684\u8655\u7406\u6642\uff0c\u57f7\u884c\u6642\u9593\u53ef\u80fd\u6703\u986f\u8457\u589e\u52a0\u3002<\/li>\n<li><strong>\u7d22\u5f15\u7f3a\u5931\uff1a<\/strong>\u7f3a\u4e4f\u9069\u7576\u7684\u7d22\u5f15\u6703\u5c0e\u81f4\u5168\u8868\u6383\u63cf\uff0c\u5f9e\u800c\u589e\u52a0\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u914d\u7f6e\u4e0d\u7576\uff1a<\/strong>MySQL \u7684\u914d\u7f6e\u53c3\u6578\u5982 <code>wait_timeout<\/code> \u548c <code>interactive_timeout<\/code> \u53ef\u80fd\u8a2d\u7f6e\u5f97\u904e\u4f4e\uff0c\u5c0e\u81f4\u67e5\u8a62\u5728\u672a\u5b8c\u6210\u6642\u88ab\u7d42\u6b62\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u9650\u5236\uff1a<\/strong>\u4f3a\u670d\u5668\u7684 CPU\u3001\u5167\u5b58\u6216 I\/O \u9650\u5236\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u7684\u57f7\u884c\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%9f%a5%e8%a9%a2%e8%b6%85%e6%99%82%e7%9a%84%e7%ad%96%e7%95%a5-ShfGBYjYmW\">\u89e3\u6c7a\u67e5\u8a62\u8d85\u6642\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2-ShfGBYjYmW\">1. \u512a\u5316\u67e5\u8a62<\/h3>\n<p>\u9996\u5148\uff0c\u5c0d\u67e5\u8a62\u9032\u884c\u512a\u5316\u662f\u89e3\u6c7a\u8d85\u6642\u554f\u984c\u7684\u95dc\u9375\u3002\u53ef\u4ee5\u4f7f\u7528 <code>EXPLAIN<\/code> \u8a9e\u53e5\u4f86\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>EXPLAIN SELECT * FROM orders WHERE customer_id = 123;<\/code><\/pre>\n<p>\u6839\u64da\u5206\u6790\u7d50\u679c\uff0c\u8003\u616e\u91cd\u5beb\u67e5\u8a62\u6216\u6e1b\u5c11\u8fd4\u56de\u7684\u6578\u64da\u91cf\u3002<\/p>\n<h3 id=\"2-%e6%b7%bb%e5%8a%a0%e7%b4%a2%e5%bc%95-ShfGBYjYmW\">2. \u6dfb\u52a0\u7d22\u5f15<\/h3>\n<p>\u78ba\u4fdd\u5c0d\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u6dfb\u52a0\u7d22\u5f15\u3002\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u6d89\u53ca\u7be9\u9078\u548c\u6392\u5e8f\u7684\u60c5\u6cc1\u4e0b\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE INDEX idx_customer_id ON orders(customer_id);<\/code><\/pre>\n<h3 id=\"3-%e8%aa%bf%e6%95%b4-mysql-%e9%85%8d%e7%bd%ae-ShfGBYjYmW\">3. \u8abf\u6574 MySQL \u914d\u7f6e<\/h3>\n<p>\u6aa2\u67e5\u4e26\u8abf\u6574 MySQL \u7684\u914d\u7f6e\u53c3\u6578\u3002\u53ef\u4ee5\u901a\u904e\u4fee\u6539 <code>my.cnf<\/code> \u6587\u4ef6\u4f86\u589e\u52a0 <code>wait_timeout<\/code> \u548c <code>interactive_timeout<\/code> \u7684\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>[mysqld]\nwait_timeout = 28800\ninteractive_timeout = 28800<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5ef6\u9577\u67e5\u8a62\u7684\u8d85\u6642\u6642\u9593\uff0c\u907f\u514d\u56e0\u70ba\u9577\u6642\u9593\u57f7\u884c\u800c\u88ab\u7d42\u6b62\u3002<\/p>\n<h3 id=\"4-%e5%a2%9e%e5%8a%a0%e4%bc%ba%e6%9c%8d%e5%99%a8%e8%b3%87%e6%ba%90-ShfGBYjYmW\">4. \u589e\u52a0\u4f3a\u670d\u5668\u8cc7\u6e90<\/h3>\n<p>\u5982\u679c\u4f3a\u670d\u5668\u8cc7\u6e90\u4e0d\u8db3\uff0c\u8003\u616e\u5347\u7d1a\u786c\u4ef6\u6216\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u4f3a\u670d\u5668\u914d\u7f6e\u3002\u9019\u53ef\u4ee5\u901a\u904e\u589e\u52a0 CPU\u3001\u5167\u5b58\u6216\u4f7f\u7528\u66f4\u5feb\u7684\u5b58\u5132\u8a2d\u5099\u4f86\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e7%9b%a3%e6%8e%a7%e5%92%8c%e7%b6%ad%e8%ad%b7-ShfGBYjYmW\">\u76e3\u63a7\u548c\u7dad\u8b77<\/h2>\n<p>\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\u662f\u9632\u6b62\u67e5\u8a62\u8d85\u6642\u7684\u91cd\u8981\u63aa\u65bd\u3002\u53ef\u4ee5\u4f7f\u7528 MySQL \u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\uff0c\u5982 <code>SHOW PROCESSLIST<\/code> \u548c <code>SHOW STATUS<\/code>\uff0c\u4f86\u6aa2\u67e5\u7576\u524d\u7684\u67e5\u8a62\u72c0\u614b\u548c\u6027\u80fd\u6307\u6a19\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-ShfGBYjYmW\">\u7d50\u8ad6<\/h2>\n<p>MySQL \u67e5\u8a62\u8d85\u6642\u554f\u984c\u7684\u89e3\u6c7a\u9700\u8981\u5f9e\u591a\u65b9\u9762\u5165\u624b\uff0c\u5305\u62ec\u67e5\u8a62\u512a\u5316\u3001\u7d22\u5f15\u6dfb\u52a0\u3001\u914d\u7f6e\u8abf\u6574\u548c\u8cc7\u6e90\u7ba1\u7406\u3002\u901a\u904e\u9019\u4e9b\u63aa\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u6e1b\u5c11\u67e5\u8a62\u8d85\u6642\u7684\u767c\u751f\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u74b0\u5883\u4ee5\u652f\u6301 MySQL \u6578\u64da\u5eab\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a MySQL \u67e5\u8a62\u8d85\u6642\u554f\u984c\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u78ba\u4fdd\u67e5\u8a62\u5feb\u901f\u97ff\u61c9\uff0c\u512a\u5316\u7cfb\u7d71\u904b\u884c\u6548\u7387\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-75798","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75798","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=75798"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75798\/revisions"}],"predecessor-version":[{"id":75799,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75798\/revisions\/75799"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}