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From "Mahesh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DBCP-513) Hundreads of threads in Wait state with below stack trace
Date Thu, 19 Jul 2018 13:36:00 GMT
Mahesh created DBCP-513:
---------------------------

             Summary: Hundreads of threads in Wait state with below stack trace
                 Key: DBCP-513
                 URL: https://issues.apache.org/jira/browse/DBCP-513
             Project: Commons DBCP
          Issue Type: Bug
    Affects Versions: 2.1.1
            Reporter: Mahesh


Hello Team,

Our application suddenly stops responding, when we checked thread dump, most of the threads
are in wait state with below stack trace, we had to restart server to make it active, can
you pelase provide your inputs on the root cause & resolution?

 

"JSockConn Thread #4532" #40906 prio=5 os_prio=0 tid=0x00007f84382ce800 nid=0xc692 waiting
on condition [0x00007f83d38f8000]
 java.lang.Thread.State: WAITING (parking)
 at sun.misc.Unsafe.park(Native Method)
 - parking to wait for <0x00000005c30a11b8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
 at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
 at org.apache.commons.pool2.impl.LinkedBlockingDeque.takeFirst(LinkedBlockingDeque.java:583)
 at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:442)
 at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
 at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:134)
 at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1533)



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