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Multiple TIMED_WAITING Threads under Cloudera Manager Stack Traces

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Multiple TIMED_WAITING Threads under Cloudera Manager Stack Traces

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Noticing multiple TIMED_WAITING Threads under Cloudera Manager Stack Traces (cm_stack file)

what could be the possible root cause ?

    com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)

Thread 24 (Timer-0):

  State: TIMED_WAITING

  Blocked count: 524

  Waited count: 313909

  Stack:

    java.lang.Object.wait(Native Method)

    java.util.TimerThread.mainLoop(Timer.java:552)

    java.util.TimerThread.run(Timer.java:505)

Thread 23 (Abandoned connection cleanup thread):

  State: TIMED_WAITING

  Blocked count: 0

  Waited count: 30338762

  Stack:

    java.lang.Object.wait(Native Method)

    java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)

    com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43)

Thread 5 (Signal Dispatcher):

  State: RUNNABLE

  Blocked count: 0

  Waited count: 0

  Stack:

Thread 3 (Finalizer):

  State: WAITING

  Blocked count: 168297

  Waited count: 130230

  Waiting on java.lang.ref.ReferenceQueue$Lock@6516df05

  Stack:

    java.lang.Object.wait(Native Method)

    java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)

    java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)

    java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)

Thread 2 (Reference Handler):

  State: WAITING

  Blocked count: 123359

  Waited count: 118366

  Waiting on java.lang.ref.Reference$Lock@32582883

  Stack:

    java.lang.Object.wait(Native Method)

    java.lang.Object.wait(Object.java:502)

    java.lang.ref.Reference$ReferenceHandler.run(Reference.java:157)

Thread 1 (MainThread):

  State: WAITING

  Blocked count: 178

  Waited count: 39

  Waiting on com.cloudera.server.cmf.StaleEntityEvictionThread@75fcccd1

  Stack:

    java.lang.Object.wait(Native Method)

    java.lang.Thread.join(Thread.java:1245)

    java.lang.Thread.join(Thread.java:1319)

    com.cloudera.server.cmf.Main.run(Main.java:644)

    com.cloudera.server.cmf.Main.main(Main.java:217)

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