{"id":74646,"date":"2024-10-15T22:42:17","date_gmt":"2024-10-15T14:42:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/74646\/"},"modified":"2024-10-15T22:42:17","modified_gmt":"2024-10-15T14:42:17","slug":"mysql-open_table%e7%9a%84%e5%90%88%e7%90%86%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/74646\/","title":{"rendered":"MySQL Open_Table\u7684\u5408\u7406\u914d\u7f6e"},"content":{"rendered":"<h1 id=\"mysql-open_table%e7%9a%84%e5%90%88%e7%90%86%e9%85%8d%e7%bd%ae-lHQsuTeRZn\">MySQL Open_Table\u7684\u5408\u7406\u914d\u7f6e<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u8cc7\u6599\u5eab\u6642\uff0c\u5408\u7406\u914d\u7f6e\u5404\u9805\u53c3\u6578\u5c0d\u65bc\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u5176\u4e2d\uff0c<code>open_table<\/code>\u53c3\u6578\u7684\u914d\u7f6e\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u76f4\u63a5\u5f71\u97ff\u5230\u8cc7\u6599\u5eab\u7684\u8868\u6253\u958b\u6578\u91cf\u548c\u6027\u80fd\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e<code>open_table<\/code>\u7684\u5408\u7406\u914d\u7f6e\uff0c\u5e6b\u52a9\u7528\u6236\u512a\u5316MySQL\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afopen_table-lHQsuTeRZn\">\u4ec0\u9ebc\u662fOpen_Table?<\/h2>\n<p><code>open_table<\/code>\u662fMySQL\u7684\u4e00\u500b\u7cfb\u7d71\u8b8a\u6578\uff0c\u8868\u793a\u7576\u524d\u6253\u958b\u7684\u8868\u7684\u6578\u91cf\u3002\u6bcf\u7576MySQL\u9700\u8981\u8a2a\u554f\u4e00\u500b\u8868\u6642\uff0c\u5b83\u6703\u5c07\u8a72\u8868\u6253\u958b\uff0c\u4e26\u5728\u67e5\u8a62\u5b8c\u6210\u5f8c\u4fdd\u6301\u8a72\u8868\u7684\u6253\u958b\u72c0\u614b\u3002\u9019\u6a23\u505a\u7684\u76ee\u7684\u662f\u70ba\u4e86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u56e0\u70ba\u6253\u958b\u7684\u8868\u53ef\u4ee5\u88ab\u91cd\u8907\u4f7f\u7528\uff0c\u800c\u4e0d\u9700\u8981\u6bcf\u6b21\u90fd\u91cd\u65b0\u6253\u958b\u3002<\/p>\n<h2 id=\"open_table%e7%9a%84%e5%bd%b1%e9%9f%bf%e5%9b%a0%e7%b4%a0-lHQsuTeRZn\">Open_Table\u7684\u5f71\u97ff\u56e0\u7d20<\/h2>\n<p>\u5728\u914d\u7f6e<code>open_table<\/code>\u6642\uff0c\u6709\u5e7e\u500b\u56e0\u7d20\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8a62\u985e\u578b\uff1a<\/strong>\u5982\u679c\u7cfb\u7d71\u4e2d\u6709\u5927\u91cf\u7684\u67e5\u8a62\u540c\u6642\u9032\u884c\uff0c\u5247\u9700\u8981\u66f4\u591a\u7684\u6253\u958b\u8868\u6578\u91cf\u3002<\/li>\n<li><strong>\u8868\u7684\u6578\u91cf\uff1a<\/strong>\u5982\u679c\u8cc7\u6599\u5eab\u4e2d\u6709\u5f88\u591a\u8868\uff0c\u5247\u9700\u8981\u9069\u7576\u589e\u52a0<code>open_table<\/code>\u7684\u6578\u91cf\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u8cc7\u6e90\uff1a<\/strong>\u4f3a\u670d\u5668\u7684\u5167\u5b58\u548cCPU\u8cc7\u6e90\u4e5f\u6703\u5f71\u97ff<code>open_table<\/code>\u7684\u914d\u7f6e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%aeopen_table-lHQsuTeRZn\">\u5982\u4f55\u914d\u7f6eOpen_Table<\/h2>\n<p>\u8981\u5408\u7406\u914d\u7f6e<code>open_table<\/code>\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%95%b6%e5%89%8d%e9%85%8d%e7%bd%ae-lHQsuTeRZn\">1. \u6aa2\u67e5\u7576\u524d\u914d\u7f6e<\/h3>\n<pre><code>SHOW VARIABLES LIKE 'table_open_cache';<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u53ef\u4ee5\u986f\u793a\u7576\u524d\u7684<code>table_open_cache<\/code>\u503c\uff0c\u9019\u662fMySQL\u7528\u4f86\u63a7\u5236\u6253\u958b\u8868\u7684\u6578\u91cf\u7684\u8b8a\u6578\u3002<\/p>\n<h3 id=\"2-%e8%aa%bf%e6%95%b4%e9%85%8d%e7%bd%ae-lHQsuTeRZn\">2. \u8abf\u6574\u914d\u7f6e<\/h3>\n<p>\u6839\u64da\u7cfb\u7d71\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8abf\u6574<code>table_open_cache<\/code>\u7684\u503c\uff1a<\/p>\n<pre><code>SET GLOBAL table_open_cache = 2000;<\/code><\/pre>\n<p>\u9019\u88e1\u76842000\u662f\u6839\u64da\u5be6\u969b\u9700\u6c42\u8a2d\u5b9a\u7684\u503c\uff0c\u5177\u9ad4\u6578\u5b57\u53ef\u4ee5\u6839\u64da\u7cfb\u7d71\u7684\u6027\u80fd\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h3 id=\"3-%e7%9b%a3%e6%8e%a7%e6%80%a7%e8%83%bd-lHQsuTeRZn\">3. \u76e3\u63a7\u6027\u80fd<\/h3>\n<p>\u5728\u8abf\u6574<code>open_table<\/code>\u5f8c\uff0c\u61c9\u8a72\u5b9a\u671f\u76e3\u63a7\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u8abf\u6574\u7684\u6548\u679c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u7684\u6253\u958b\u8868\u6578\u91cf\uff1a<\/p>\n<pre><code>SHOW STATUS LIKE 'Open_tables';<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u4e86\u89e3\u7576\u524d\u7684\u8868\u6253\u958b\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u9032\u4e00\u6b65\u7684\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-lHQsuTeRZn\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u914d\u7f6e<code>open_table<\/code>\u6642\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u8abf\u6574<code>table_open_cache<\/code>\u7684\u503c\uff0c\u4ee5\u9069\u61c9\u7cfb\u7d71\u7684\u8b8a\u5316\u3002<\/li>\n<li>\u76e3\u63a7\u7cfb\u7d71\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\uff0c\u78ba\u4fdd\u4e0d\u6703\u51fa\u73fe\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528<code>innodb_buffer_pool_size<\/code>\u7b49\u5176\u4ed6\u53c3\u6578\u4f86\u9032\u4e00\u6b65\u512a\u5316\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-lHQsuTeRZn\">\u7d50\u8ad6<\/h2>\n<p>\u5408\u7406\u914d\u7f6eMySQL\u7684<code>open_table<\/code>\u53c3\u6578\u5c0d\u65bc\u63d0\u5347\u8cc7\u6599\u5eab\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u548c\u8abf\u6574<code>table_open_cache<\/code>\u7684\u503c\uff0c\u4e26\u76e3\u63a7\u7cfb\u7d71\u6027\u80fd\uff0c\u53ef\u4ee5\u78ba\u4fdd\u8cc7\u6599\u5eab\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\u4f9d\u7136\u7a69\u5b9a\u904b\u884c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<code>open_table<\/code>\u914d\u7f6e\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u53ca\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL Open_Table\u7684\u5408\u7406\u914d\u7f6e\uff0c\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\uff0c\u63d0\u5347\u67e5\u8be2\u6548\u7387\uff0c\u786e\u4fdd\u7cfb\u7edf\u7a33\u5b9a\u8fd0\u884c\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-74646","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/74646","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=74646"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/74646\/revisions"}],"predecessor-version":[{"id":74647,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/74646\/revisions\/74647"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=74646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=74646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=74646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}