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