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https://issues.apache.org/jira/browse/HADOOP-15003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244232#comment-16244232
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Ryan Blue commented on HADOOP-15003:
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I don't think the partitioned committer should continue the _SUCCESS marker
convention. Nothing that writes partitioned data currently depends on _SUCCESS
markers, so it's easy to avoid the problem entirely because the markers are
unreliable: what happens when you're appending data to a partition?
We implemented a property that allows users to opt in to have _SUCCESS created
for the directory output committer only. It creates the _SUCCESS marker after
all other operations have finished because that's when we can guarantee that
the write was successful. It doesn't delete other markers because there are no
well-defined semantics for _SUCCESS with overwrite.
> Merge S3A committers into trunk: Yetus patch checker
> ----------------------------------------------------
>
> Key: HADOOP-15003
> URL: https://issues.apache.org/jira/browse/HADOOP-15003
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.0.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Attachments: HADOOP-13786-041.patch, HADOOP-13786-042.patch,
> HADOOP-13786-043.patch, HADOOP-13786-044.patch, HADOOP-13786-045.patch,
> HADOOP-13786-046.patch
>
>
> This is a Yetus only JIRA created to have Yetus review the
> HADOOP-13786/HADOOP-14971 patch as a .patch file, as the review PR
> [https://github.com/apache/hadoop/pull/282] is stopping this happening in
> HADOOP-14971.
> Reviews should go into the PR/other task
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