[jira] Commented: (ZOOKEEPER-880) QuorumCnxManager$SendWorker grows without bounds

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12968613#action_12968613 ] 

Hadoop QA commented on ZOOKEEPER-880:
-------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12465666/ZOOKEEPER-880.patch
  against trunk revision 1040752.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 findbugs.  The patch appears to introduce 7 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://hudson.apache.org/hudson/job/PreCommit-ZOOKEEPER-Build/62//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-ZOOKEEPER-Build/62//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-ZOOKEEPER-Build/62//console

This message is automatically generated.

> QuorumCnxManager$SendWorker grows without bounds
> ------------------------------------------------
>
>                 Key: ZOOKEEPER-880
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-880
>             Project: ZooKeeper
>          Issue Type: Bug
>    Affects Versions: 3.2.2
>            Reporter: Jean-Daniel Cryans
>            Assignee: Vishal K
>            Priority: Critical
>             Fix For: 3.3.3, 3.4.0
>
>         Attachments: hbase-hadoop-zookeeper-sv4borg12.log.gz, hbase-hadoop-zookeeper-sv4borg9.log.gz, jstack, TRACE-hbase-hadoop-zookeeper-sv4borg9.log.gz, ZOOKEEPER-880.patch, ZOOKEEPER-880.patch, ZOOKEEPER-880.patch
>
>
> We're seeing an issue where one server in the ensemble has a steady growing number of QuorumCnxManager$SendWorker threads up to a point where the OS runs out of native threads, and at the same time we see a lot of exceptions in the logs.  This is on 3.2.2 and our config looks like:
> {noformat}
> tickTime=3000
> dataDir=/somewhere_thats_not_tmp
> clientPort=2181
> initLimit=10
> syncLimit=5
> server.0=sv4borg9:2888:3888
> server.1=sv4borg10:2888:3888
> server.2=sv4borg11:2888:3888
> server.3=sv4borg12:2888:3888
> server.4=sv4borg13:2888:3888
> {noformat}
> The issue is on the first server. I'm going to attach threads dumps and logs in moment.

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