[
https://issues.apache.org/jira/browse/DBCP-513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16569270#comment-16569270
]
Gary Gregory commented on DBCP-513:
-----------------------------------
Hi [~agrrwal]:
Can you provide a patch that reproduces the problem as a unit test? For a
database, you should try to use an local database like H2
([http://www.h2database.com/html/main.html)] or HSQLDB ([http://hsqldb.org/).]
Otherwise, I do not see how I can help you in a timely manner.
Thank you!
Gary
> 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
> Environment: Java Version:
> 1.8.0_121
> OS Complete Version:
> Linux sdpvvrwm556 3.10.0-693.11.6.el7.x86_64 #1 SMP Thu Dec 28 14:23:39 EST
> 2017 x86_64 x86_64 x86_64 GNU/Linux
>
> DBCP Jar:
> commons-dbcp2-2.1.1.jar
> Reporter: Mahesh
> Priority: Blocker
>
> 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)
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
