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From "Esteban Gutierrez (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-3859) Increment a counter when a Scanner lease expires
Date Wed, 16 Nov 2016 21:25:59 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3859?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Esteban Gutierrez updated HBASE-3859:
    Labels: beginner  (was: )

> 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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