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From "Patrick Hunt (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (ZOOKEEPER-880) QuorumCnxManager$SendWorker grows without bounds
Date Mon, 22 Nov 2010 17:58:13 GMT

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

Patrick Hunt reassigned ZOOKEEPER-880:
--------------------------------------

    Assignee: Vishal K

> QuorumCnxManager$SendWorker grows without bounds
> ------------------------------------------------
>
>                 Key: ZOOKEEPER-880
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-880
>             Project: Zookeeper
>          Issue Type: Bug
>    Affects Versions: 3.2.2
>            Reporter: Jean-Daniel Cryans
>            Assignee: Vishal K
>            Priority: Critical
>         Attachments: hbase-hadoop-zookeeper-sv4borg12.log.gz, hbase-hadoop-zookeeper-sv4borg9.log.gz,
jstack, TRACE-hbase-hadoop-zookeeper-sv4borg9.log.gz, ZOOKEEPER-880.patch
>
>
> We're seeing an issue where one server in the ensemble has a steady growing number of
QuorumCnxManager$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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