{"id":3172,"date":"2018-02-18T10:45:24","date_gmt":"2018-02-18T02:45:24","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=3172"},"modified":"2018-02-18T10:45:24","modified_gmt":"2018-02-18T02:45:24","slug":"mysql%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e8%bf%9e%e6%8e%a5%e6%95%b0%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/shujuku\/mysql%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e8%bf%9e%e6%8e%a5%e6%95%b0%e8%ae%be%e7%bd%ae\/","title":{"rendered":"MySQL\u670d\u52a1\u5668\u7684\u8fde\u63a5\u6570\u8bbe\u7f6e"},"content":{"rendered":"<div id=\"article_content\" class=\"article_content csdn-tracking-statistics tracking-click\" data-mod=\"popu_519\" data-dsm=\"post\">\n<div class=\"htmledit_views\">\n<p>MySQL\u670d\u52a1\u5668\u7684\u8fde\u63a5\u6570\u5e76\u4e0d\u662f\u8981\u8fbe\u5230\u6700\u5927\u7684100%\u4e3a\u597d\uff0c\u8fd8\u662f\u8981\u5177\u4f53\u95ee\u9898\u5177\u4f53\u5206\u6790\uff0c\u4e0b\u9762\u5c31\u5bf9<a href=\"https:\/\/database.51cto.com\/art\/201010\/229528.htm\" target=\"_blank\">MySQL<\/a>\u670d\u52a1\u5668\u6700\u5927\u8fde\u63a5\u6570\u7684\u5408\u7406\u8bbe\u7f6e\u8fdb\u884c\u4e86\u8be6\u5c3d\u7684\u5206\u6790\uff0c\u4f9b\u60a8\u53c2\u8003\u3002<\/p>\n<p>\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u89c1\u201cMySQL: ERROR 1040: Too many connections\u201d\u7684\u60c5\u51b5\uff0c\u4e00\u79cd\u662f\u8bbf\u95ee\u91cf\u786e\u5b9e\u5f88\u9ad8\uff0cMySQL\u670d\u52a1\u5668\u6297\u4e0d\u4f4f\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u8981\u8003\u8651\u589e\u52a0\u4ece\u670d\u52a1\u5668\u5206\u6563\u8bfb\u538b\u529b\uff0c\u53e6\u5916\u4e00\u79cd\u60c5\u51b5\u662fMySQL\u914d\u7f6e\u6587\u4ef6\u4e2dmax_connections\u503c\u8fc7\u5c0f\uff1a<\/p>\n<p>mysql&gt; show variables like &#8216;max_connections&#8217;;<br \/>\n+&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;-+<br \/>\n| Variable_name | Value |<br \/>\n+&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;-+<br \/>\n| max_connections | 256 |<br \/>\n+&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;-+<\/p>\n<p>\u8fd9\u53f0MySQL\u670d\u52a1\u5668\u6700\u5927\u8fde\u63a5\u6570\u662f256\uff0c\u7136\u540e\u67e5\u8be2\u4e00\u4e0b\u670d\u52a1\u5668\u54cd\u5e94\u7684\u6700\u5927\u8fde\u63a5\u6570\uff1a<\/p>\n<p>mysql&gt; show global status like &#8216;Max_used_connections&#8217;;<\/p>\n<p>MySQL\u670d\u52a1\u5668\u8fc7\u53bb\u7684\u6700\u5927\u8fde\u63a5\u6570\u662f245\uff0c\u6ca1\u6709\u8fbe\u5230\u670d\u52a1\u5668\u8fde\u63a5\u6570\u4e0a\u9650256\uff0c\u5e94\u8be5\u6ca1\u6709\u51fa\u73b01040\u9519\u8bef\uff0c\u6bd4\u8f83\u7406\u60f3\u7684\u8bbe\u7f6e\u662f\uff1a<\/p>\n<p>Max_used_connections \/ max_connections * 100% \u2248 85%<\/p>\n<p>\u6700\u5927\u8fde\u63a5\u6570\u5360\u4e0a\u9650\u8fde\u63a5\u6570\u768485%\u5de6\u53f3\uff0c\u5982\u679c\u53d1\u73b0\u6bd4\u4f8b\u572810%\u4ee5\u4e0b\uff0cMySQL\u670d\u52a1\u5668\u8fde\u63a5\u4e0a\u7ebf\u5c31\u8bbe\u7f6e\u5f97\u8fc7\u9ad8\u4e86\u3002<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u670d\u52a1\u5668\u7684\u8fde\u63a5\u6570\u5e76\u4e0d\u662f\u8981\u8fbe\u5230\u6700\u5927\u7684100%\u4e3a\u597d\uff0c\u8fd8\u662f\u8981\u5177\u4f53\u95ee\u9898\u5177\u4f53\u5206\u6790\uff0c\u4e0b\u9762\u5c31\u5bf9MySQL\u670d\u52a1\u5668\u6700\u5927\u8fde &#8230; <a title=\"MySQL\u670d\u52a1\u5668\u7684\u8fde\u63a5\u6570\u8bbe\u7f6e\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/shujuku\/mysql%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e8%bf%9e%e6%8e%a5%e6%95%b0%e8%ae%be%e7%bd%ae\/\" aria-label=\"\u9605\u8bfb MySQL\u670d\u52a1\u5668\u7684\u8fde\u63a5\u6570\u8bbe\u7f6e\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[10],"tags":[],"class_list":["post-3172","post","type-post","status-publish","format-standard","hentry","category-shujuku"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3172","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=3172"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3172\/revisions"}],"predecessor-version":[{"id":3173,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3172\/revisions\/3173"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=3172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=3172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=3172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}