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From "Gregory Chanan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6591) checkAndPut executed/not metrics
Date Thu, 13 Sep 2012 17:46:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13455057#comment-13455057
] 

Gregory Chanan commented on HBASE-6591:
---------------------------------------

We had a customer with a very slow-running application that consisted mainly of checkAndPuts.
 checkAndPut latency looked good.  It would have been nice to just look at the metrics and
be able to eliminate the possibility that their checkAndPuts simply weren't getting executed.
                
> 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
>
>
> 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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