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https://issues.apache.org/jira/browse/HBASE-3292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965768#action_12965768
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stack commented on HBASE-3292:
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+1
Put it into 0.90 I'd say.
> Expose block cache hit/miss/evict counts into region server metrics
> -------------------------------------------------------------------
>
> Key: HBASE-3292
> URL: https://issues.apache.org/jira/browse/HBASE-3292
> Project: HBase
> Issue Type: Improvement
> Reporter: Jonathan Gray
> Assignee: Jonathan Gray
> Priority: Minor
> Fix For: 0.90.1, 0.92.0
>
> Attachments: HBASE-3292-v1.patch
>
>
> Right now only the hit ratio is exposed into the rs metrics. This value
> tends to change very slowly and hardly at all once the cluster has been up
> for some time.
> We should expose the aggregate hit/miss/evict counts so you can more
> effectively see how things change over time.
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