{"id":178512,"date":"2024-11-08T18:35:21","date_gmt":"2024-11-08T10:35:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178512\/"},"modified":"2024-11-08T18:35:22","modified_gmt":"2024-11-08T10:35:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42002-cr_connection_error-%e6%97%a0%e6%b3%95%e9%80%9a%e8%bf%87%e5%a5%97%e6%8e%a5%e5%ad%97s%ef%bc%88d%ef%bc%89%e8%bf%9e%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178512\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42002 &#8211; (CR_CONNECTION_ERROR) \u65e0\u6cd5\u901a\u8fc7\u5957\u63a5\u5b57&#8217;%s&#8217;\uff08%d\uff09\u8fde\u63a5\u5230\u672c\u5730MySQL\u670d\u52a1\u5668"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42002-cr_connection_error-%e7%84%a1%e6%b3%95%e9%80%9a%e9%81%8e%e5%a5%97%e6%8e%a5%e5%ad%97s%ef%bc%88d%ef%bc%89%e9%80%a3%e6%8e%a5%e5%88%b0-wJdNrUnigL\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42002 &#8211; (CR_CONNECTION_ERROR) \u7121\u6cd5\u901a\u904e\u5957\u63a5\u5b57&#8217;%s&#8217;\uff08%d\uff09\u9023\u63a5\u5230\u672c\u5730MySQL\u4f3a\u670d\u5668<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u932f\u8aa42002 &#8211; (CR_CONNECTION_ERROR) \u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u8868\u793a\u7121\u6cd5\u901a\u904e\u6307\u5b9a\u7684\u5957\u63a5\u5b57\u9023\u63a5\u5230\u672c\u5730MySQL\u4f3a\u670d\u5668\u3002\u9019\u500b\u932f\u8aa4\u53ef\u80fd\u7531\u591a\u7a2e\u539f\u56e0\u5f15\u8d77\uff0c\u5305\u62ecMySQL\u4f3a\u670d\u5668\u672a\u555f\u52d5\u3001\u914d\u7f6e\u932f\u8aa4\u6216\u6b0a\u9650\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u8a3a\u65b7\u548c\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-wJdNrUnigL\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>\u5728\u89e3\u6c7a\u932f\u8aa42002\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u53ef\u80fd\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>MySQL\u4f3a\u670d\u5668\u672a\u555f\u52d5\uff1a<\/strong>\u5982\u679cMySQL\u670d\u52d9\u672a\u904b\u884c\uff0c\u5247\u7121\u6cd5\u5efa\u7acb\u9023\u63a5\u3002<\/li>\n<li><strong>\u5957\u63a5\u5b57\u6587\u4ef6\u4f4d\u7f6e\u932f\u8aa4\uff1a<\/strong>MySQL\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u6307\u5b9a\u7684\u5957\u63a5\u5b57\u6587\u4ef6\u4f4d\u7f6e\u53ef\u80fd\u8207\u5be6\u969b\u4f4d\u7f6e\u4e0d\u7b26\u3002<\/li>\n<li><strong>\u6b0a\u9650\u554f\u984c\uff1a<\/strong>\u7528\u6236\u53ef\u80fd\u6c92\u6709\u8a2a\u554fMySQL\u5957\u63a5\u5b57\u6587\u4ef6\u7684\u6b0a\u9650\u3002<\/li>\n<li><strong>\u9632\u706b\u7246\u8a2d\u7f6e\uff1a<\/strong>\u9632\u706b\u7246\u53ef\u80fd\u963b\u6b62\u4e86\u5c0dMySQL\u4f3a\u670d\u5668\u7684\u8a2a\u554f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%aa%a2%e6%9f%a5mysql%e4%bc%ba%e6%9c%8d%e5%99%a8%e7%8b%80%e6%85%8b-wJdNrUnigL\">\u6aa2\u67e5MySQL\u4f3a\u670d\u5668\u72c0\u614b<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u6aa2\u67e5MySQL\u4f3a\u670d\u5668\u662f\u5426\u6b63\u5728\u904b\u884c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u6aa2\u67e5\u670d\u52d9\u72c0\u614b\uff1a<\/p>\n<pre><code>sudo systemctl status mysql<\/code><\/pre>\n<p>\u5982\u679c\u670d\u52d9\u672a\u555f\u52d5\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5\u5b83\uff1a<\/p>\n<pre><code>sudo systemctl start mysql<\/code><\/pre>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e5%a5%97%e6%8e%a5%e5%ad%97%e6%96%87%e4%bb%b6%e4%bd%8d%e7%bd%ae-wJdNrUnigL\">\u6aa2\u67e5\u5957\u63a5\u5b57\u6587\u4ef6\u4f4d\u7f6e<\/h2>\n<p>\u5982\u679cMySQL\u670d\u52d9\u6b63\u5728\u904b\u884c\uff0c\u4f46\u4ecd\u7136\u51fa\u73fe\u932f\u8aa4\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u5957\u63a5\u5b57\u6587\u4ef6\u7684\u4f4d\u7f6e\u3002\u60a8\u53ef\u4ee5\u5728MySQL\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u627e\u5230\u9019\u500b\u4fe1\u606f\uff0c\u901a\u5e38\u4f4d\u65bc\u4ee5\u4e0b\u8def\u5f91\uff1a<\/p>\n<pre><code>\/etc\/mysql\/my.cnf<\/code><\/pre>\n<p>\u5728\u8a72\u6587\u4ef6\u4e2d\uff0c\u67e5\u627e\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>socket=\/var\/run\/mysqld\/mysqld.sock<\/code><\/pre>\n<p>\u78ba\u4fdd\u8a72\u8def\u5f91\u5b58\u5728\u4e26\u4e14MySQL\u670d\u52d9\u6b63\u5728\u4f7f\u7528\u5b83\u3002\u5982\u679c\u8def\u5f91\u4e0d\u6b63\u78ba\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u9032\u884c\u4fee\u6539\u3002<\/p>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e6%ac%8a%e9%99%90%e8%a8%ad%e7%bd%ae-wJdNrUnigL\">\u6aa2\u67e5\u6b0a\u9650\u8a2d\u7f6e<\/h2>\n<p>\u5982\u679c\u5957\u63a5\u5b57\u6587\u4ef6\u4f4d\u7f6e\u6b63\u78ba\uff0c\u4f46\u4ecd\u7136\u7121\u6cd5\u9023\u63a5\uff0c\u5247\u53ef\u80fd\u662f\u6b0a\u9650\u554f\u984c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u5957\u63a5\u5b57\u6587\u4ef6\u7684\u6b0a\u9650\uff1a<\/p>\n<pre><code>ls -l \/var\/run\/mysqld\/mysqld.sock<\/code><\/pre>\n<p>\u78ba\u4fdd\u7576\u524d\u7528\u6236\u5c0d\u8a72\u6587\u4ef6\u5177\u6709\u8b80\u53d6\u548c\u5beb\u5165\u7684\u6b0a\u9650\u3002\u5982\u679c\u6b0a\u9650\u4e0d\u8db3\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u4fee\u6539\u6b0a\u9650\uff1a<\/p>\n<pre><code>sudo chown mysql:mysql \/var\/run\/mysqld\/mysqld.sock<\/code><\/pre>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e9%98%b2%e7%81%ab%e7%89%86%e8%a8%ad%e7%bd%ae-wJdNrUnigL\">\u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e<\/h2>\n<p>\u6700\u5f8c\uff0c\u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e\u662f\u5426\u963b\u6b62\u4e86\u5c0dMySQL\u4f3a\u670d\u5668\u7684\u8a2a\u554f\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u9632\u706b\u7246\u72c0\u614b\uff1a<\/p>\n<pre><code>sudo ufw status<\/code><\/pre>\n<p>\u5982\u679c\u9632\u706b\u7246\u555f\u7528\uff0c\u78ba\u4fdd\u5141\u8a31MySQL\u7684\u7aef\u53e3\uff08\u9ed8\u8a8d\u70ba3306\uff09\u901a\u904e\uff1a<\/p>\n<pre><code>sudo ufw allow 3306<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-wJdNrUnigL\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa42002 &#8211; (CR_CONNECTION_ERROR) \u901a\u5e38\u662f\u7531\u65bc\u4f3a\u670d\u5668\u672a\u555f\u52d5\u3001\u5957\u63a5\u5b57\u6587\u4ef6\u4f4d\u7f6e\u932f\u8aa4\u3001\u6b0a\u9650\u554f\u984c\u6216\u9632\u706b\u7246\u8a2d\u7f6e\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u9019\u4e9b\u65b9\u9762\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u8a3a\u65b7\u548c\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u670d\u52d9\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u6258\u7ba1\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u78ba\u4fdd\u9ad8\u53ef\u7528\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa42002 (CR_CONNECTION_ERROR) \u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a\u7121\u6cd5\u901a\u904e\u5957\u63a5\u5b57\u9023\u63a5\u5230\u672c\u5730MySQL\u4f3a\u670d\u5668\u7684\u554f\u984c\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-178512","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178512","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=178512"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178512\/revisions"}],"predecessor-version":[{"id":178513,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178512\/revisions\/178513"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}