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https://issues.apache.org/jira/browse/HBASE-1020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650695#action_12650695
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Andrew Purtell commented on HBASE-1020:
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+1. With HBASE-1022 in also this is good.
If OOME escapes I assume there will be a stack trace and we can reopen this
issue to fix based on reports of them, correct?
> Regionserver OOME handler should dump vital stats
> -------------------------------------------------
>
> Key: HBASE-1020
> URL: https://issues.apache.org/jira/browse/HBASE-1020
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Andrew Purtell
> Fix For: 0.19.0
>
> Attachments: 1020.patch
>
>
> On OOME the regionserver should dump into the log some vital stats:
> - Number of regions
> - Number of store files
> - Estimated item count and size of memcache(s)
> - Estimated item count and size of store file indexes
> Assumes the reserve can be released upon OOME to allow the additional actions.
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