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https://issues.apache.org/jira/browse/HADOOP-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack resolved HADOOP-1796.
---------------------------
Resolution: Fixed
Fix Version/s: 0.15.0
Reviewing the attached stack traces, root problem is threads are hung trying to
take out a write lock on memcache. Jim subsequently fixed a problem where
memcache constructions could fail leaving outstanding read locks preventing
other threads from ever again being able to get a write lock on memcache.
Resolving the issue as fixed by HADOOP-1805.
> [hbase] deadlock on HLog rolling its log
> ----------------------------------------
>
> Key: HADOOP-1796
> URL: https://issues.apache.org/jira/browse/HADOOP-1796
> Project: Hadoop
> Issue Type: Bug
> Components: contrib/hbase
> Reporter: stack
> Assignee: stack
> Priority: Minor
> Fix For: 0.15.0
>
> Attachments: hbase-stack-regionserver-aa0-000-12.u.powerset.com.out
>
>
> Found a region server hung on hlog.
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