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Date: Sat, 16 Nov 2013 23:23:22 +0000 (UTC)
From: "Ted Yu (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12676893.1383238573547.86541.1384644202736@arcas>
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References: <JIRA.12676893.1383238573547@arcas>
Subject: [jira] [Commented] (HBASE-9869) Optimize
 HConnectionManager#getCachedLocation
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    [ https://issues.apache.org/jira/browse/HBASE-9869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13824669#comment-13824669 ] 

Ted Yu commented on HBASE-9869:
-------------------------------

+1

> Optimize HConnectionManager#getCachedLocation
> ---------------------------------------------
>
>                 Key: HBASE-9869
>                 URL: https://issues.apache.org/jira/browse/HBASE-9869
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.98.0, 0.96.0
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>             Fix For: 0.98.0, 0.96.1
>
>         Attachments: 6869.v4.patch, 9869.v1.patch, 9869.v1.patch, 9869.v2.patch
>
>
> It javadoc says: "TODO: This method during writing consumes 15% of CPU doing lookup". This is still true, says Yourkit. With 0.96, we also spend more time in these methods. We retry more, and the AsyncProcess calls it in parallel.
> I don't have the patch for this yet, but I will spend some time on it.


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