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https://issues.apache.org/jira/browse/MAPREDUCE-5491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14354452#comment-14354452
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Hadoop QA commented on MAPREDUCE-5491:
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{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12602080/MAPREDUCE-5491-v2.patch
against trunk revision 47f7f18.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 3 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc 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 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient:
org.apache.hadoop.mapred.TestMRTimelineEventHandling
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5268//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5268//console
This message is automatically generated.
> DFSIO do not initialize write buffer correctly
> ----------------------------------------------
>
> Key: MAPREDUCE-5491
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5491
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: benchmarks, test
> Reporter: Raymond Liu
> Assignee: Raymond Liu
> Attachments: MAPREDUCE-5491-v2.patch, MAPREDUCE-5491.patch
>
>
> In DFSIO test, the IOMapperBase will set bufferSize in configure method,
> while writeMapper, appendMapper etc use bufferSize to initialize buffer in
> the constructor. This will lead to buffer not initialized at all. It is ok
> for non compression route, while compression is used, the output data size
> will be very small due to all 0 in buffer.
> Thus, the overrided configure method should be be the correct place for
> initial buffer
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