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https://issues.apache.org/jira/browse/HBASE-6591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13456338#comment-13456338
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stack commented on HBASE-6591:
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The TestHeapSize probably failed because you added checkAndMutateChecksFailed
w/o updating HRegion#FIXED_OVERHEAD (I'd guess)
> checkAndPut executed/not metrics
> --------------------------------
>
> Key: HBASE-6591
> URL: https://issues.apache.org/jira/browse/HBASE-6591
> Project: HBase
> Issue Type: Task
> Components: metrics, regionserver
> Reporter: Gregory Chanan
> Assignee: Gregory Chanan
> Priority: Minor
> Fix For: 0.96.0
>
> Attachments: HBASE-6591.patch
>
>
> checkAndPut/checkAndDelete return true if the new put was executed, false
> otherwise.
> So clients can figure out this metric for themselves, but it would be useful
> to get a look at what is happening on the cluster as a whole, across all
> clients.
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