sql: database is closed

灰太狼 2023-01-20 09:42 42阅读 0赞

go服务报错：

**[http://xxx Request Error socket hang up, POST http://xxx -1 (connected: true, keepalive socket: false, agent status: \{"createSocketCount":78,"createSocketErrorCount":0,"closeSocketCount":77,"errorSocketCount":0,"timeoutSocketCount":71,"requestCount":251,"freeSockets":\{\},"sockets":\{"xxx:":1\},"requests":\{\}\}, socketHandledRequests: 1, socketHandledResponses: 0)][http_xxx Request_Error_socket_hang_up_POST_http_xxx -1_connected_true_keepalive_socket_false_agent_status_createSocketCount_78_createSocketErrorCount_0_closeSocketCount_77_errorSocketCount_0_timeoutSocketCount_71_requestCount_251_freeSockets_sockets_xxx_1_requests_socketHandledRequests_1_socketHandledResponses_0]**

**关键日志：****err:sql: database is closed**

**解决办法：**

**后来发现是db实例提前关闭的问题。检查下是不是在使用连接的时候连接关闭掉了，举例：有两个步骤依次为A、B， 原因很简单， A任务里写了defer  db.close()  则B里再使用的时候就会报这个错**！

可以干掉**defer  db.close() **，既然是全局使用的连接，直接取用就好。或者可以采取其它措施来调整逻辑。

[http_xxx Request_Error_socket_hang_up_POST_http_xxx -1_connected_true_keepalive_socket_false_agent_status_createSocketCount_78_createSocketErrorCount_0_closeSocketCount_77_errorSocketCount_0_timeoutSocketCount_71_requestCount_251_freeSockets_sockets_xxx_1_requests_socketHandledRequests_1_socketHandledResponses_0]: http://9.218.1.38:9987/api/analysis/cusWarningGet%C2%A0Request%C2%A0Error%C2%A0socket%C2%A0hang%C2%A0up,%C2%A0POST%C2%A0http://9.218.1.38:9987/api/analysis/cusWarningGet%C2%A0-1%C2%A0%28connected:%C2%A0true,%C2%A0keepalive%C2%A0socket:%C2%A0false,%C2%A0agent%C2%A0status:%C2%A0%7B