warning  : 1 client is using or hasn’t closed the table properly

서버가 다운되면서….아래와 같은 메세지를 확인햇을경우..

Mar 24 13:23:04 localhost kernel: INFO: task httpd:18362 blocked for more than 120 seconds.
Mar 24 13:23:05 localhost kernel: “echo 0 > /proc/sys/kernel/hung_task_timeout_secs” disables this message.

정확한 이벤트를 확인하기위하여 아래와 같이 실행

[root@localhost log]# echo 1 > /proc/sys/kernel/hung_task_panic
[root@localhost log]# echo 0 > /proc/sys/kernel/hung_task_timeout_secs

주기적인 모니터링으로 원인분석

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