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Date: Thu, 27 Sep 2012 01:01:24 +1100 (NCT)
From: "Hudson (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-4651) Benchmarking random reads with
 DFSIO
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-4651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463828#comment-13463828 ] 

Hudson commented on MAPREDUCE-4651:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk #1208 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1208/])
    MAPREDUCE-4651. Benchmarking random reads with DFSIO. (Revision 1390159)

     Result = SUCCESS
shv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1390159
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/fs/IOMapperBase.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/fs/TestDFSIO.java

                
> Benchmarking random reads with DFSIO
> ------------------------------------
>
>                 Key: MAPREDUCE-4651
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4651
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: benchmarks, test
>    Affects Versions: 1.0.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 0.23.4
>
>         Attachments: randomDFSIO.patch, randomDFSIO.patch, randomDFSIO.patch
>
>
> TestDFSIO measures throughput of HDFS write, read, and append operations. It will be useful to have an option to use it for benchmarking random reads.

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