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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1988) OutOfMemoryError in RegionServer
Date Tue, 24 Nov 2009 21:03:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12782162#action_12782162
] 

stack commented on HBASE-1988:
------------------------------

Stefan has provided me with a heap dump.  About 17 byte arrays are > 146M each consuming
2.4G.  Stefan is check into it.

> OutOfMemoryError in RegionServer
> --------------------------------
>
>                 Key: HBASE-1988
>                 URL: https://issues.apache.org/jira/browse/HBASE-1988
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.20.2
>         Environment: Java 1.6.0_16 64bit on CentOS with 3000M max heap
>            Reporter: Stefan Will
>         Attachments: regionserver.log.gz
>
>
> RegionServers tend to die with an OutOfMemoryError under load. I expected this problem
to go away with the fix for HBASE-1927 in 0.20.2 RC1, but it's still happening. Also, when
this happens the cluster becomes unresponsive, even once the load on the machines has gone
back down. Interestingly there are lots and lots of scanner lease expired messages right before
the OOM.

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