Statement cancelled due to timeout or client request

本文轉載自查看原文 2020-04-08 23:34 2577 Java

tomcat日志報錯：

org.springframework.dao.QueryTimeoutException:
### Error querying database. Cause: com.mysql.jdbc.exceptions.MySQLTimeoutException: Statement cancelled due to timeout or client request
### The error may exist in file [/var/lib/tomcat8/webapps/ROOT/WEB-INF/classes/mappers/DeviceMapper.xml]
### The error may involve defaultParameterMap
### The error occurred while setting parameters

原因是，MySQL優化器執行計划使用了錯誤的索引，導致一條SQL查詢語句超時，需要30多秒，所以報錯。

解決方法是使用 force index 提示 mysql 選擇正確的索引。搞定。

免責聲明！

本站轉載的文章為個人學習借鑒使用，本站對版權不負任何法律責任。如果侵犯了您的隱私權益，請聯系本站郵箱yoyou2525@163.com刪除。

猜您在找 Statement cancelled due to timeout or client request MySQL異常：Caused by: com.mysql.jdbc.exceptions.MySQLTimeoutException: Statement cancelled due to timeout or client request 錯誤信息： The server cannot or will not process the request due to something that is perceived to be a client error net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting head win7 request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) golang micro client 報錯500 {"id":"go.micro.client","code":408,"detail":"call timeout: context deadline exceeded","status":"Request Timeout"} The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive re docker拉取慢（net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting head） cause: Fail to decode request due to: RpcInvocation The server cannot or will not process the request due to something that is perceived ..