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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12581) Concurrent calls to BoneCP.getConnection() lock up
Date Thu, 03 Dec 2015 20:09:10 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15038517#comment-15038517
] 

Eugene Koifman commented on HIVE-12581:
---------------------------------------

This bug maybe a red herring.
but if it isn't there is a way to tell bonecp to timeout getConnection() after specified time.

I agree that it is time to upgrade - last bonecp release was in 2013.

> Concurrent calls to BoneCP.getConnection() lock up
> --------------------------------------------------
>
>                 Key: HIVE-12581
>                 URL: https://issues.apache.org/jira/browse/HIVE-12581
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>
> {noformat}
> Thread 31078: (state = BLOCKED)
>  - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
>  - java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object, long) @bci=20,
line=226 (Interpreted frame)
>  - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(long)
@bci=68, line=2082 (Interpreted frame)
>  - java.util.concurrent.LinkedBlockingQueue.poll(long, java.util.concurrent.TimeUnit)
@bci=62, line=467 (Interpreted frame)
>  - com.jolbox.bonecp.DefaultConnectionStrategy.getConnectionInternal() @bci=50, line=82
(Interpreted frame)
>  - com.jolbox.bonecp.AbstractConnectionStrategy.getConnection() @bci=6, line=90 (Interpreted
frame)
>  - com.jolbox.bonecp.BoneCP.getConnection() @bci=4, line=553 (Interpreted frame)
>  - com.jolbox.bonecp.BoneCPDataSource.getConnection() @bci=108, line=131 (Interpreted
frame)
>  - org.apache.hadoop.hive.metastore.txn.TxnHandler.getDbConn(int) @bci=16, line=973 (Interpreted
frame)
>  - org.apache.hadoop.hive.metastore.txn.TxnHandler.checkLock(org.apache.hadoop.hive.metastore.api.CheckLockRequest)
@bci=88, line=530 (Interpreted frame)
>  {noformat}
> Sometimes these lock up, i.e. some sort of deadlock happens inside the connection pool



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