confluence unexpected shutdown

[zhangzb]

logs output:

Exception in thread "scheduler_QuartzSchedulerThread" Exception in thread "I/O dispatcher 11" Exception in thread "HttpClient@2115850195-scheduler" 27-Nov-2018 10:14:30.246 WARNING [ContainerBackgroundProcessor[StandardEngine[Standalone]]] org.apache.catalina.valves.StuckThreadDetectionValve.notifyStuckThreadDetected Thread [http-nio-8090-exec-34] (id=[12900]) has been active for [123,810] milliseconds (since [11/27/18 10:09 AM]) to serve the same request for [https://docs.homeking365.com/] and may be stuck (configured threshold for this StuckThreadDetectionValve is [60] seconds). There is/are [6] thread(s) in total that are monitored by this Valve and may be stuck. java.lang.Throwable

[Alex Medved _ConfiForms_]

Looks like your pool for request threads is all occupied serving the requests that are stuck trying to access "https://docs.homeking365.com/"

You need to troubleshoot the cause - I suppose you have some plugin that attempts to do synchronous requests to this site... without proper timeouts and gets stuck

[zhangzb]

We couldn't find out the reason of the pool for request threads was all occupied...

[zhangzb]

This situation has occurred several times recently.