com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The last packet successfully received from the server was 976,464 milliseconds ago. The last packet sent successfully to the server was 974,674 milliseconds ago.
当我运行以下将向AWS RDS发送15MB文件的测试计划时,JMeter中出现了此错误。
LoadTestPl
我在线程池上面临着很长的等待时间,有什么方法可以找出原因吗?我们目前有Server 2012标准运行在windows服务器2008,16 CPU上。连接数为20K,每分钟30k请求。我需要更多的CPU,还是这是一个应用程序问题?
select COUNT(*) from sys.dm_os_workers
SELECT *
FROM sys.dm_os_wait_stats
WHERE wait_type = 'threadpool'
SELECT Count(* ) AS [UserSessions]
FROM sys.dm_exec_sessions