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https://issues.apache.org/jira/browse/HBASE-3859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15671687#comment-15671687
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Esteban Gutierrez commented on HBASE-3859:
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Sounds helpful to have, specially now that we have a better metrics framework.
> Increment a counter when a Scanner lease expires
> ------------------------------------------------
>
> Key: HBASE-3859
> URL: https://issues.apache.org/jira/browse/HBASE-3859
> Project: HBase
> Issue Type: Improvement
> Components: metrics, regionserver
> Affects Versions: 2.0.0
> Reporter: Benoit Sigoure
> Assignee: Mubarak Seyed
> Priority: Minor
> Labels: beginner
> Attachments: HBASE-3859.trunk.v1.patch
>
>
> Whenever a Scanner lease expires, the RegionServer will close it
> automatically and log a message to complain. I would like the RegionServer
> to increment a counter whenever this happens and expose this counter through
> the metrics system, so we can plug this into our monitoring system (OpenTSDB)
> and keep track of how frequently this happens. It's not supposed to happen
> frequently so it's good to keep an eye on it.
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