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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5008) Merger progress miscounts with respect to EOF_MARKER
Date Tue, 19 Feb 2013 04:39:13 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581020#comment-13581020
] 

Hadoop QA commented on MAPREDUCE-5008:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12569897/MAPREDUCE-5008.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3339//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3339//console

This message is automatically generated.
                
> 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
>         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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