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https://issues.apache.org/jira/browse/TEZ-3849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16193360#comment-16193360
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ASF GitHub Bot commented on TEZ-3849:
-------------------------------------
GitHub user jacobtolar opened a pull request:
https://github.com/apache/tez/pull/21
[TEZ-3849] PipelinedSorter silently drops records
@jteagles
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jacobtolar/tez TEZ-3849
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tez/pull/21.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #21
----
commit d32b47cf07b57b5afb9e6c51e9d812e989b58934
Author: Jacob Tolar <[email protected]>
Date: 2017-10-05T18:11:14Z
[TEZ-3849] PipelinedSorter silently drops records
----
> PipelinedSorter silently drops records
> --------------------------------------
>
> Key: TEZ-3849
> URL: https://issues.apache.org/jira/browse/TEZ-3849
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jacob Tolar
>
> This bug was introduced in
> https://github.com/apache/tez/commit/a47e8fcbea5eeab5a7cf812271d329524cc02dba?diff=split
>
> when combiner != null, the change in this commit passes kvIter with next()
> having already been called. This ends up (silently) dropping the first record
> in the partition.
> Will submit PR and attach patch. [~jeagles], not sure if this is the way you
> want to fix or not but it does fix my tests.
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