{"id":177583,"date":"2024-11-08T15:21:21","date_gmt":"2024-11-08T07:21:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177583\/"},"modified":"2024-11-08T15:21:22","modified_gmt":"2024-11-08T07:21:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41162-sqlstate-42000%ef%bc%88er_too_long_string%ef%bc%89%e7%b5%90%e6%9e%9c%e5%ad%97%e7%ac%a6%e4%b8%b2%e9%95%b7%e6%96%bcmax_allowed_packet","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177583\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41162 – SQLSTATE: 42000\uff08ER_TOO_LONG_STRING\uff09\u7d50\u679c\u5b57\u7b26\u4e32\u9577\u65bc’max_allowed_packet’\u5b57\u7bc0"},"content":{"rendered":"

\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41162 – SQLSTATE: 42000\uff08ER_TOO_LONG_STRING\uff09\u7d50\u679c\u5b57\u7b26\u4e32\u9577\u65bc’max_allowed_packet’\u5b57\u7bc0<\/h1>\n

\u5728\u4f7f\u7528MySQL\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\u5c31\u662f\u932f\u8aa41162\uff0c\u8a72\u932f\u8aa4\u7684SQLSTATE\u4ee3\u78bc\u70ba42000\uff0c\u8868\u793a\u7d50\u679c\u5b57\u7b26\u4e32\u9577\u65bc’max_allowed_packet’\u5b57\u7bc0\u3002\u9019\u500b\u554f\u984c\u901a\u5e38\u767c\u751f\u5728\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u6642\uff0c\u7576\u6578\u64da\u7684\u5927\u5c0f\u8d85\u904e\u4e86MySQL\u7684\u6700\u5927\u5141\u8a31\u5305\u5927\u5c0f\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n

\u932f\u8aa41162\u7684\u539f\u56e0<\/h2>\n

MySQL\u7684’max_allowed_packet’\u53c3\u6578\u5b9a\u7fa9\u4e86\u55ae\u500b\u5305\u7684\u6700\u5927\u5927\u5c0f\uff0c\u9019\u5305\u62ec\u4e86\u67e5\u8a62\u3001\u63d2\u5165\u548c\u66f4\u65b0\u64cd\u4f5c\u4e2d\u50b3\u8f38\u7684\u6578\u64da\u3002\u5982\u679c\u60a8\u5617\u8a66\u63d2\u5165\u7684\u6578\u64da\u8d85\u904e\u4e86\u9019\u500b\u9650\u5236\uff0c\u5c31\u6703\u51fa\u73fe\u932f\u8aa41162\u3002\u9019\u500b\u9650\u5236\u7684\u9ed8\u8a8d\u503c\u901a\u5e38\u662f4MB\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u7279\u5225\u662f\u8655\u7406\u5927\u6578\u64da\u91cf\u6216\u5927\u578b\u6587\u672c\u5b57\u6bb5\u6642\uff0c\u9019\u500b\u9650\u5236\u53ef\u80fd\u4e0d\u5920\u7528\u3002<\/p>\n

\u6aa2\u67e5\u7576\u524d\u7684’max_allowed_packet’\u8a2d\u7f6e<\/h2>\n

\u8981\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684’max_allowed_packet’\u8a2d\u7f6e\u3002\u60a8\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u67e5\u770b\u7576\u524d\u7684\u8a2d\u7f6e\uff1a<\/p>\n

SHOW VARIABLES LIKE 'max_allowed_packet';<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u7576\u524d\u7684’max_allowed_packet’\u503c\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n
\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41162<\/h2>\n
1. \u589e\u52a0’max_allowed_packet’\u7684\u5927\u5c0f<\/h3>\n
\u6700\u76f4\u63a5\u7684\u89e3\u6c7a\u65b9\u6848\u662f\u589e\u52a0’max_allowed_packet’\u7684\u5927\u5c0f\u3002\u60a8\u53ef\u4ee5\u901a\u904e\u7de8\u8f2fMySQL\u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u662fmy.cnf\u6216my.ini\uff09\u4f86\u5be6\u73fe\u3002\u627e\u5230\u4ee5\u4e0b\u884c\uff1a<\/p>\n
[mysqld]\nmax_allowed_packet=4M<\/code><\/pre>\n
\u7136\u5f8c\u5c07\u5176\u66f4\u6539\u70ba\u66f4\u5927\u7684\u503c\uff0c\u4f8b\u5982\uff1a<\/p>\n
[mysqld]\nmax_allowed_packet=16M<\/code><\/pre>\n
\u4fdd\u5b58\u66f4\u6539\u5f8c\uff0c\u91cd\u555fMySQL\u670d\u52d9\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u91cd\u555fMySQL\uff1a<\/p>\n
sudo service mysql restart<\/code><\/pre>\n
2. \u5728\u904b\u884c\u6642\u8a2d\u7f6e’max_allowed_packet’<\/h3>\n
\u5982\u679c\u60a8\u4e0d\u60f3\u6216\u7121\u6cd5\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\uff0c\u60a8\u4e5f\u53ef\u4ee5\u5728\u904b\u884c\u6642\u8a2d\u7f6e’max_allowed_packet’\u7684\u5927\u5c0f\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0bSQL\u547d\u4ee4\u5be6\u73fe\uff1a<\/p>\n
SET GLOBAL max_allowed_packet=16777216; -- 16MB<\/code><\/pre>\n
\u8acb\u6ce8\u610f\uff0c\u9019\u7a2e\u65b9\u6cd5\u53ea\u6703\u5728\u7576\u524d\u7684MySQL\u6703\u8a71\u4e2d\u751f\u6548\uff0c\u4e26\u4e14\u5728MySQL\u91cd\u555f\u5f8c\u6703\u6062\u5fa9\u70ba\u9ed8\u8a8d\u503c\u3002<\/p>\n
3. \u512a\u5316\u6578\u64da\u7d50\u69cb<\/h3>\n
\u9664\u4e86\u589e\u52a0’max_allowed_packet’\u7684\u5927\u5c0f\uff0c\u60a8\u9084\u53ef\u4ee5\u8003\u616e\u512a\u5316\u6578\u64da\u7d50\u69cb\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u5927\u578b\u6587\u672c\u5b57\u6bb5\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u66f4\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff0c\u5982TEXT\u6216BLOB\uff0c\u9019\u4e9b\u985e\u578b\u5728\u5b58\u5132\u5927\u6578\u64da\u6642\u66f4\u70ba\u9ad8\u6548\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
MySQL\u932f\u8aa41162\uff08SQLSTATE: 42000\uff09\u901a\u5e38\u662f\u7531\u65bc\u6578\u64da\u8d85\u904e\u4e86’max_allowed_packet’\u7684\u9650\u5236\u800c\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u7576\u524d\u7684’max_allowed_packet’\u8a2d\u7f6e\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u7121\u8ad6\u662f\u901a\u904e\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u3001\u904b\u884c\u6642\u8a2d\u7f6e\u9084\u662f\u512a\u5316\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5e6b\u52a9\u60a8\u907f\u514d\u672a\u4f86\u51fa\u73fe\u985e\u4f3c\u7684\u932f\u8aa4\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\uff0c\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u5176\u4ed6\u61c9\u7528\u7a0b\u5e8f\u7684\u652f\u6301\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4fee\u5fa9MySQL\u932f\u8aa41162\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u8abf\u6574’max_allowed_packet’\u8a2d\u7f6e\uff0c\u89e3\u6c7a\u7d50\u679c\u5b57\u7b26\u4e32\u8d85\u904e\u9650\u5236\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-177583","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177583","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=177583"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177583\/revisions"}],"predecessor-version":[{"id":177584,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177583\/revisions\/177584"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}