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

["Vishal K (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vishal K updated ZOOKEEPER-880:
-------------------------------

    Affects Version/s:     (was: 3.3.3)
                       3.4.0
        Fix Version/s:     (was: 3.3.3)
                       3.4.0
         Hadoop Flags:   (was: [Reviewed])

Changing version tags.

> QuorumCnxManager$SendWorker grows without bounds
> ------------------------------------------------
>
>                 Key: ZOOKEEPER-880
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-880
>             Project: ZooKeeper
>          Issue Type: Bug
>    Affects Versions: 3.4.0
>            Reporter: Jean-Daniel Cryans
>            Assignee: Vishal K
>            Priority: Blocker
>             Fix For: 3.4.0
>
>         Attachments: TRACE-hbase-hadoop-zookeeper-sv4borg9.log.gz, ZOOKEEPER-880-3.3.patch, ZOOKEEPER-880.patch, ZOOKEEPER-880.patch, ZOOKEEPER-880.patch, hbase-hadoop-zookeeper-sv4borg12.log.gz, hbase-hadoop-zookeeper-sv4borg9.log.gz, jstack
>
>
> We're seeing an issue where one server in the ensemble has a steady growing number of QuorumCnxManager$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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