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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5008) Merger progress miscounts with respect to EOF_MARKER
Date Wed, 27 Feb 2013 13:05:14 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13588293#comment-13588293
] 

Hudson commented on MAPREDUCE-5008:
-----------------------------------

Integrated in Hadoop-Hdfs-trunk #1329 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1329/])
    MAPREDUCE-5008. Merger progress miscounts with respect to EOF_MARKER. Contributed by Sandy
Ryza. (Revision 1450723)

     Result = SUCCESS
tomwhite : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1450723
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/task/reduce/MergeManagerImpl.java

                
> Merger progress miscounts with respect to EOF_MARKER
> ----------------------------------------------------
>
>                 Key: MAPREDUCE-5008
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5008
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.0.3-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>             Fix For: 1.2.0, 2.0.4-beta
>
>         Attachments: MAPREDUCE-5008-branch-1.patch, MAPREDUCE-5008.patch, MAPREDUCE-5008.patch
>
>
> After MAPREDUCE-2264, a segment's raw data length is calculated without the EOF_MARKER
bytes.  However, when the merge is counting how many bytes it processed, it includes the marker.
 This can cause the merge progress to go above 100%.
> Whether these EOF_MARKER bytes should count should be consistent between the two.
> This a JIRA instead of an amendment because MAPREDUCE-2264 already went into 2.0.3.

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