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Date: Fri, 15 Jul 2011 13:18:00 +0000 (UTC)
From: "ramkrishna.s.vasudevan (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HBASE-4101) Regionserver Deadlock
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     [ https://issues.apache.org/jira/browse/HBASE-4101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ramkrishna.s.vasudevan updated HBASE-4101:
------------------------------------------

    Attachment: HBASE-4101_0.90.patch

> Regionserver Deadlock
> ---------------------
>
>                 Key: HBASE-4101
>                 URL: https://issues.apache.org/jira/browse/HBASE-4101
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.90.3
>         Environment: CentOS 5.5, CDH3 u0 Hadoop, HBase 0.90.3
>            Reporter: Matt Davies
>            Priority: Blocker
>             Fix For: 0.90.4
>
>         Attachments: HBASE-4101_0.90.patch, jstack.txt
>
>
> We periodically see a situation where the regionserver process exists in the process list, zookeeper thread sends the keepalive so the master won't remove it from the active list, yet the regionserver will not serve data.
> Hadoop(cdh3u0), HBase 0.90.3 (Apache version), under load from an internal testing tool.
> Attached is the full JStack

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