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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4657) Improve the efficiency of our MR jobs with a few configurations
Date Fri, 23 Mar 2012 05:52:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13236365#comment-13236365
] 

Hudson commented on HBASE-4657:
-------------------------------

Integrated in HBase-TRUNK-security #146 (See [https://builds.apache.org/job/HBase-TRUNK-security/146/])
    HBASE-4657 Improve the efficiency of our MR jobs with a few configurations (Revision 1304110)

     Result = SUCCESS
larsh : 
Files : 
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/mapreduce/CopyTable.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/mapreduce/Export.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/mapreduce/Import.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/mapreduce/ImportTsv.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/mapreduce/RowCounter.java

                
> Improve the efficiency of our MR jobs with a few configurations
> ---------------------------------------------------------------
>
>                 Key: HBASE-4657
>                 URL: https://issues.apache.org/jira/browse/HBASE-4657
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.90.4
>            Reporter: Jean-Daniel Cryans
>            Assignee: Lars Hofhansl
>             Fix For: 0.94.0, 0.96.0
>
>         Attachments: 4657.txt
>
>
> This is a low hanging fruit, some of our MR jobs like RowCounter and CopyTable don't
even setCacheBlocks on the scan object which out of the box completely screws up a running
system. Another thing would be to disable speculative execution.

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