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From "Jean-Marc Spaggiari (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9604) Add metric on short-circuit reads
Date Sat, 21 Sep 2013 01:01:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13773651#comment-13773651
] 

Jean-Marc Spaggiari commented on HBASE-9604:
--------------------------------------------

People will LOVE that! 

That will also go with HBASE-7769.
                
> Add metric on short-circuit reads
> ---------------------------------
>
>                 Key: HBASE-9604
>                 URL: https://issues.apache.org/jira/browse/HBASE-9604
>             Project: HBase
>          Issue Type: Task
>          Components: metrics
>            Reporter: stack
>
> Got this from a Colin message this afternoon:
> "There are HDFS statistics that HBase could be checking by calling DFSInputStream#getReadStatistics.
 This tells you how many of your reads have been remote, local, short-circuit, etc.  You could
file an HBase JIRA for them to roll those up into the HBase stats. Seems like a good idea
to me."

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