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https://issues.apache.org/jira/browse/HBASE-8868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13700064#comment-13700064
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Jean-Marc Spaggiari commented on HBASE-8868:
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This will also help to close HBASE-7769... If we have the metric, we can
display it in the UI, which will allow users to see if shortcircuit is used or
not...
> add metric to report client shortcircuit reads
> ----------------------------------------------
>
> Key: HBASE-8868
> URL: https://issues.apache.org/jira/browse/HBASE-8868
> Project: HBase
> Issue Type: Improvement
> Components: metrics, regionserver
> Affects Versions: 0.94.8, 0.95.1
> Reporter: Viral Bajaria
> Priority: Minor
>
> With the availability of shortcircuit reads, when the feature is enabled
> there is no metric which exposes how many times the regionserver was able to
> shortcircuit the read and not make a IPC to the datanode.
> It will be great to add the metric and expose it via Ganglia.
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