{"id":177665,"date":"2024-11-08T16:02:21","date_gmt":"2024-11-08T08:02:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177665\/"},"modified":"2024-11-08T16:02:22","modified_gmt":"2024-11-08T08:02:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41203-sqlstate-42000%ef%bc%88er_too_many_user_connections%ef%bc%89%e7%94%a8%e6%88%b6s%e5%b7%b2%e7%b6%93%e6%93%81%e6%9c%89%e8%b6%85","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177665\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41203 &#8211; SQLSTATE: 42000\uff08ER_TOO_MANY_USER_CONNECTIONS\uff09\u7528\u6236&#8217;%s&#8217;\u5df2\u7d93\u64c1\u6709\u8d85\u904e&#8217;max_user_connections&#8217;\u500b\u6d3b\u52d5\u9023\u63a5"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41203-sqlstate-42000%ef%bc%88er_too_many_user_connections%ef%bc%89-MbFsUGgEAr\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41203 &#8211; SQLSTATE: 42000\uff08ER_TOO_MANY_USER_CONNECTIONS\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u60a8\u53ef\u80fd\u6703\u9047\u5230\u932f\u8aa4\u4ee3\u78bc1203\uff0c\u8a72\u932f\u8aa4\u7684\u5177\u9ad4\u4fe1\u606f\u70ba\u201c\u7528\u6236&#8217;%s&#8217;\u5df2\u7d93\u64c1\u6709\u8d85\u904e&#8217;max_user_connections&#8217;\u500b\u6d3b\u52d5\u9023\u63a5\u201d\u3002\u9019\u610f\u5473\u8457\u7576\u524d\u7528\u6236\u7684\u6d3b\u52d5\u9023\u63a5\u6578\u91cf\u5df2\u7d93\u8d85\u904e\u4e86MySQL\u670d\u52d9\u5668\u914d\u7f6e\u7684\u6700\u5927\u9650\u5236\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-MbFsUGgEAr\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>MySQL\u7684\u9023\u63a5\u6578\u91cf\u9650\u5236\u662f\u70ba\u4e86\u9632\u6b62\u55ae\u500b\u7528\u6236\u4f54\u7528\u904e\u591a\u7684\u8cc7\u6e90\uff0c\u5f9e\u800c\u5f71\u97ff\u5230\u5176\u4ed6\u7528\u6236\u7684\u6b63\u5e38\u4f7f\u7528\u3002\u7576\u7528\u6236\u7684\u6d3b\u52d5\u9023\u63a5\u6578\u91cf\u9054\u5230\u6216\u8d85\u904e\u8a2d\u5b9a\u7684\u6700\u5927\u503c\u6642\uff0cMySQL\u5c07\u62d2\u7d55\u65b0\u7684\u9023\u63a5\u8acb\u6c42\uff0c\u4e26\u8fd4\u56de\u932f\u8aa41203\u3002\u9019\u500b\u9650\u5236\u901a\u5e38\u7531\u4ee5\u4e0b\u5e7e\u500b\u56e0\u7d20\u5f15\u8d77\uff1a<\/p>\n<ul>\n<li><strong>\u61c9\u7528\u7a0b\u5e8f\u8a2d\u8a08\u4e0d\u7576\uff1a<\/strong>\u67d0\u4e9b\u61c9\u7528\u7a0b\u5e8f\u53ef\u80fd\u5728\u4f7f\u7528\u6578\u64da\u5eab\u6642\u672a\u80fd\u6b63\u78ba\u95dc\u9589\u9023\u63a5\uff0c\u5c0e\u81f4\u9023\u63a5\u6578\u91cf\u4e0d\u65b7\u589e\u52a0\u3002<\/li>\n<li><strong>\u9ad8\u6d41\u91cf\uff1a<\/strong>\u5982\u679c\u60a8\u7684\u7db2\u7ad9\u6216\u61c9\u7528\u7a0b\u5e8f\u5728\u9ad8\u6d41\u91cf\u6642\u6bb5\u63a5\u6536\u5230\u5927\u91cf\u8acb\u6c42\uff0c\u53ef\u80fd\u6703\u8fc5\u901f\u9054\u5230\u6700\u5927\u9023\u63a5\u6578\u3002<\/li>\n<li><strong>\u914d\u7f6e\u554f\u984c\uff1a<\/strong>MySQL\u7684\u9ed8\u8a8d\u914d\u7f6e\u53ef\u80fd\u4e0d\u9069\u5408\u60a8\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u7279\u5225\u662f\u5728\u7528\u6236\u6578\u91cf\u8f03\u591a\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%aa%a2%e6%9f%a5%e7%95%b6%e5%89%8d%e9%80%a3%e6%8e%a5%e6%95%b8-MbFsUGgEAr\">\u5982\u4f55\u6aa2\u67e5\u7576\u524d\u9023\u63a5\u6578<\/h2>\n<p>\u8981\u6aa2\u67e5\u7576\u524d\u7684\u6d3b\u52d5\u9023\u63a5\u6578\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>SHOW PROCESSLIST;<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u7576\u524d\u6240\u6709\u6d3b\u52d5\u7684\u9023\u63a5\uff0c\u5305\u62ec\u7528\u6236\u540d\u3001\u4e3b\u6a5f\u3001\u57f7\u884c\u7684\u67e5\u8a62\u7b49\u4fe1\u606f\u3002\u60a8\u53ef\u4ee5\u6839\u64da\u9019\u4e9b\u4fe1\u606f\u4f86\u5224\u65b7\u54ea\u4e9b\u9023\u63a5\u662f\u6d3b\u8e8d\u7684\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<h2 id=\"%e4%bf%ae%e5%be%a9%e6%96%b9%e6%b3%95-MbFsUGgEAr\">\u4fee\u5fa9\u65b9\u6cd5<\/h2>\n<p>\u4fee\u5fa9MySQL\u932f\u8aa41203\u7684\u65b9\u6cd5\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e5%a2%9e%e5%8a%a0max_user_connections%e9%99%90%e5%88%b6-MbFsUGgEAr\">1. \u589e\u52a0max_user_connections\u9650\u5236<\/h3>\n<p>\u5982\u679c\u60a8\u78ba\u5b9a\u9700\u8981\u66f4\u591a\u7684\u9023\u63a5\uff0c\u53ef\u4ee5\u8003\u616e\u589e\u52a0max_user_connections\u7684\u9650\u5236\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4fee\u6539MySQL\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u662fmy.cnf\u6216my.ini\uff09\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>[mysqld]\nmax_user_connections = 50<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u8981\u8abf\u6574\u6578\u5b57\u3002\u4fee\u6539\u5f8c\uff0c\u8acb\u91cd\u555fMySQL\u670d\u52d9\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002<\/p>\n<h3 id=\"2-%e5%84%aa%e5%8c%96%e6%87%89%e7%94%a8%e7%a8%8b%e5%ba%8f%e4%bb%a3%e7%a2%bc-MbFsUGgEAr\">2. \u512a\u5316\u61c9\u7528\u7a0b\u5e8f\u4ee3\u78bc<\/h3>\n<p>\u6aa2\u67e5\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u4ee3\u78bc\uff0c\u78ba\u4fdd\u5728\u4e0d\u518d\u9700\u8981\u6578\u64da\u5eab\u9023\u63a5\u6642\u6b63\u78ba\u95dc\u9589\u5b83\u5011\u3002\u4f7f\u7528\u9023\u63a5\u6c60\u6280\u8853\u53ef\u4ee5\u6709\u6548\u7ba1\u7406\u9023\u63a5\uff0c\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u9023\u63a5\u958b\u92b7\u3002<\/p>\n<h3 id=\"3-%e7%9b%a3%e6%8e%a7%e5%92%8c%e7%ae%a1%e7%90%86%e9%80%a3%e6%8e%a5-MbFsUGgEAr\">3. \u76e3\u63a7\u548c\u7ba1\u7406\u9023\u63a5<\/h3>\n<p>\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u7684\u9023\u63a5\u6578\u91cf\uff0c\u4e26\u6839\u64da\u6d41\u91cf\u60c5\u6cc1\u9032\u884c\u8abf\u6574\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u76e3\u63a7\u5de5\u5177\u4f86\u5e6b\u52a9\u60a8\u8ddf\u8e64\u9023\u63a5\u6578\u91cf\u548c\u6027\u80fd\u6307\u6a19\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e9%80%a3%e6%8e%a5%e6%b1%a0-MbFsUGgEAr\">4. \u4f7f\u7528\u9023\u63a5\u6c60<\/h3>\n<p>\u9023\u63a5\u6c60\u662f\u4e00\u7a2e\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\u7684\u6280\u8853\uff0c\u53ef\u4ee5\u91cd\u7528\u73fe\u6709\u7684\u9023\u63a5\uff0c\u800c\u4e0d\u662f\u6bcf\u6b21\u90fd\u5275\u5efa\u65b0\u7684\u9023\u63a5\u3002\u9019\u6a23\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u9023\u63a5\u6578\u91cf\uff0c\u5f9e\u800c\u907f\u514d\u9054\u5230\u6700\u5927\u9023\u63a5\u9650\u5236\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-MbFsUGgEAr\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41203\u901a\u5e38\u662f\u7531\u65bc\u7528\u6236\u7684\u6d3b\u52d5\u9023\u63a5\u6578\u91cf\u8d85\u904e\u4e86\u8a2d\u5b9a\u7684\u6700\u5927\u503c\u3002\u901a\u904e\u589e\u52a0max_user_connections\u9650\u5236\u3001\u512a\u5316\u61c9\u7528\u7a0b\u5e8f\u4ee3\u78bc\u3001\u76e3\u63a7\u9023\u63a5\u6578\u91cf\u4ee5\u53ca\u4f7f\u7528\u9023\u63a5\u6c60\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u670d\u52d9\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u80fd\u5920\u5e73\u7a69\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41203\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u8abf\u6574max_user_connections\u8a2d\u7f6e\u548c\u512a\u5316\u7528\u6236\u9023\u63a5\u7ba1\u7406\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u6027\u80fd\u7a69\u5b9a\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-177665","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177665","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=177665"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177665\/revisions"}],"predecessor-version":[{"id":177666,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177665\/revisions\/177666"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}