{"id":67137,"date":"2024-10-14T22:37:27","date_gmt":"2024-10-14T14:37:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/67137\/"},"modified":"2024-10-14T22:37:27","modified_gmt":"2024-10-14T14:37:27","slug":"mysql-error-number-4156-symbol-er_cant_change_sys_var_in_read_only_mode-sqlstate-hy000-%e6%8a%a5%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/67137\/","title":{"rendered":"MySQL Error number: 4156; Symbol: ER_CANT_CHANGE_SYS_VAR_IN_READ_ONLY_MODE; SQLSTATE: HY000 \u62a5\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%e7%a2%bc%ef%bc%9a4156%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_cant_change_sys_var_in_read_only_mode%ef%bc%9bsqlstate%ef%bc%9ahy000-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-BVwdSCeKLE\">MySQL \u932f\u8aa4\u865f\u78bc\uff1a4156\uff1b\u7b26\u865f\uff1aER_CANT_CHANGE_SYS_VAR_IN_READ_ONLY_MODE\uff1bSQLSTATE\uff1aHY000 \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u932f\u8aa4\u865f\u78bc 4156\u3002\u9019\u500b\u932f\u8aa4\u7684\u5177\u9ad4\u4fe1\u606f\u70ba\u300cER_CANT_CHANGE_SYS_VAR_IN_READ_ONLY_MODE\u300d\uff0c\u5176 SQLSTATE \u70ba HY000\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-BVwdSCeKLE\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>\u932f\u8aa4 4156 \u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u4fee\u6539\u7cfb\u7d71\u8b8a\u91cf\u6642\uff0c\u800c\u7576\u524d\u7684 MySQL \u5be6\u4f8b\u8655\u65bc\u53ea\u8b80\u6a21\u5f0f\u3002\u9019\u610f\u5473\u8457\u6578\u64da\u5eab\u7684\u914d\u7f6e\u4e0d\u5141\u8a31\u9032\u884c\u4efb\u4f55\u66f4\u6539\uff0c\u9019\u53ef\u80fd\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u914d\u7f6e\uff1a<\/strong>\u5728 MySQL \u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u53ef\u80fd\u8a2d\u7f6e\u4e86\u53ea\u8b80\u6a21\u5f0f\u3002\u9019\u901a\u5e38\u662f\u51fa\u65bc\u5b89\u5168\u8003\u91cf\uff0c\u7279\u5225\u662f\u5728\u751f\u7522\u74b0\u5883\u4e2d\u3002<\/li>\n<li><strong>\u4f3a\u670d\u5668\u72c0\u614b\uff1a<\/strong>\u4f3a\u670d\u5668\u53ef\u80fd\u56e0\u70ba\u67d0\u4e9b\u539f\u56e0\uff08\u5982\u7dad\u8b77\u6216\u6545\u969c\uff09\u800c\u88ab\u8a2d\u7f6e\u70ba\u53ea\u8b80\u6a21\u5f0f\u3002<\/li>\n<li><strong>\u7528\u6236\u6b0a\u9650\uff1a<\/strong>\u7576\u524d\u7528\u6236\u53ef\u80fd\u6c92\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u4fee\u6539\u7cfb\u7d71\u8b8a\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bd%b1%e9%9f%bf-BVwdSCeKLE\">\u5f71\u97ff<\/h2>\n<p>\u7576 MySQL \u9047\u5230\u9019\u500b\u932f\u8aa4\u6642\uff0c\u5c07\u7121\u6cd5\u9032\u884c\u4efb\u4f55\u9700\u8981\u4fee\u6539\u7cfb\u7d71\u8b8a\u91cf\u7684\u64cd\u4f5c\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u5230\u61c9\u7528\u7a0b\u5e8f\u7684\u6b63\u5e38\u904b\u884c\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u6027\u80fd\u512a\u5316\u6216\u914d\u7f6e\u8abf\u6574\u5c07\u7121\u6cd5\u751f\u6548\uff0c\u5f9e\u800c\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u4e0b\u964d\u6216\u4e0d\u7a69\u5b9a\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-BVwdSCeKLE\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 MySQL \u932f\u8aa4 4156\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5-mysql-%e9%85%8d%e7%bd%ae-BVwdSCeKLE\">1. \u6aa2\u67e5 MySQL \u914d\u7f6e<\/h3>\n<pre><code>SHOW VARIABLES LIKE 'read_only';<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0 SQL \u67e5\u8a62\u4ee5\u6aa2\u67e5\u7576\u524d\u7684\u53ea\u8b80\u72c0\u614b\u3002\u5982\u679c\u8fd4\u56de\u7684\u503c\u70ba &#8216;ON&#8217;\uff0c\u5247\u8868\u793a\u6578\u64da\u5eab\u8655\u65bc\u53ea\u8b80\u6a21\u5f0f\u3002<\/p>\n<h3 id=\"2-%e4%bf%ae%e6%94%b9%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6-BVwdSCeKLE\">2. \u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/h3>\n<p>\u5982\u679c\u78ba\u5b9a\u9700\u8981\u5c07\u6578\u64da\u5eab\u8a2d\u7f6e\u70ba\u53ef\u5beb\u6a21\u5f0f\uff0c\u60a8\u9700\u8981\u7de8\u8f2f MySQL \u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u662f my.cnf \u6216 my.ini\uff09\uff0c\u627e\u5230\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>[mysqld]\nread_only = 1<\/code><\/pre>\n<p>\u5c07\u5176\u66f4\u6539\u70ba\uff1a<\/p>\n<pre><code>[mysqld]\nread_only = 0<\/code><\/pre>\n<h3 id=\"3-%e9%87%8d%e6%96%b0%e5%95%9f%e5%8b%95-mysql-%e6%9c%8d%e5%8b%99-BVwdSCeKLE\">3. \u91cd\u65b0\u555f\u52d5 MySQL \u670d\u52d9<\/h3>\n<p>\u5728\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u5f8c\uff0c\u60a8\u9700\u8981\u91cd\u65b0\u555f\u52d5 MySQL \u670d\u52d9\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>sudo systemctl restart mysql<\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-BVwdSCeKLE\">4. \u6aa2\u67e5\u7528\u6236\u6b0a\u9650<\/h3>\n<p>\u5982\u679c\u60a8\u7121\u6cd5\u4fee\u6539\u7cfb\u7d71\u8b8a\u91cf\uff0c\u8acb\u6aa2\u67e5\u7576\u524d\u7528\u6236\u7684\u6b0a\u9650\u3002\u78ba\u4fdd\u7528\u6236\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u9032\u884c\u6240\u9700\u7684\u64cd\u4f5c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u7528\u6236\u6b0a\u9650\uff1a<\/p>\n<pre><code>SHOW GRANTS FOR 'your_user'@'your_host';<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-BVwdSCeKLE\">\u7d50\u8ad6<\/h2>\n<p>MySQL \u932f\u8aa4\u865f\u78bc 4156 \u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u8207\u6578\u64da\u5eab\u7684\u53ea\u8b80\u6a21\u5f0f\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5\u914d\u7f6e\u6587\u4ef6\u3001\u4fee\u6539\u53ea\u8b80\u8a2d\u7f6e\u4ee5\u53ca\u78ba\u4fdd\u7528\u6236\u64c1\u6709\u9069\u7576\u7684\u6b0a\u9650\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u4e86\u89e3\u9019\u4e9b\u6545\u969c\u6392\u9664\u6b65\u9a5f\u5c07\u6709\u52a9\u65bc\u78ba\u4fdd\u60a8\u7684 MySQL \u6578\u64da\u5eab\u904b\u884c\u9806\u5229\uff0c\u4e26\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to fix MySQL Error 4156 (ER_CANT_CHANGE_SYS_VAR_IN_READ_ONLY_MODE) with remote troubleshooting tips and solutions for effective resolution.<\/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-67137","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/67137","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=67137"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/67137\/revisions"}],"predecessor-version":[{"id":67138,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/67137\/revisions\/67138"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=67137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=67137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=67137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}