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From "James Kennedy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2997) Performance fixes - profiler driven
Date Fri, 31 Dec 2010 01:34:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976167#action_12976167
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James Kennedy commented on HBASE-2997:
--------------------------------------

HBaseRpcMetrics is now logging a WARN message every time it encounters an unregistered RPC
method.

In my case I now get huge log files filled with these warnings because the hbase-trx transactional
extension of HBase uses a subclass of HRegionServer that adds new interface methods.

It's easy enough to tell log4j to ignore HBaseRpcMetrics output.

However, it would be nice if the Server/HRegionServer HBaseRpcMetrics mechanism was more extensible
so I could pass down new interfaces or grab the HBaseRpcMetrics object to add interfaces from
up top...

> Performance fixes - profiler driven
> -----------------------------------
>
>                 Key: HBASE-2997
>                 URL: https://issues.apache.org/jira/browse/HBASE-2997
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.89.20100621
>            Reporter: ryan rawson
>            Assignee: ryan rawson
>            Priority: Critical
>             Fix For: 0.89.20100924, 0.90.0
>
>         Attachments: HBASE-2997-1.txt, HBASE-2997-2.txt, HBASE-2997-3.txt, HBASE-2997-4.txt,
HBASE-2997-5.txt
>
>
> while profiling hbase I found a number of slow pieces.  Here are fixes for them.

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