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https://issues.apache.org/jira/browse/MAPREDUCE-2779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13117797#comment-13117797
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Hadoop QA commented on MAPREDUCE-2779:
--------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12497098/MAPREDUCE-2779-0.22.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
-1 tests included. 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.
-1 patch. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/903//console
This message is automatically generated.
> JobSplitWriter.java can't handle large job.split file
> -----------------------------------------------------
>
> Key: MAPREDUCE-2779
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2779
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: job submission
> Affects Versions: 0.20.205.0, 0.22.0, 0.23.0
> Reporter: Ming Ma
> Assignee: Ming Ma
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-2779-0.22.patch, MAPREDUCE-2779-trunk.patch
>
>
> We use cascading MultiInputFormat. MultiInputFormat sometimes generates big
> job.split used internally by hadoop, sometimes it can go beyond 2GB.
> In JobSplitWriter.java, the function that generates such file uses 32bit
> signed integer to compute offset into job.split.
> writeNewSplits
> ...
> int prevCount = out.size();
> ...
> int currCount = out.size();
> writeOldSplits
> ...
> long offset = out.size();
> ...
> int currLen = out.size();
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