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https://issues.apache.org/jira/browse/PIG-4412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-4412:
----------------------------
Resolution: Fixed
Fix Version/s: 0.15.0
Assignee: Josh Wills
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
LGTM. Committed to trunk. Thanks Josh!
> Race condition in writing multiple outputs from STREAM op
> ---------------------------------------------------------
>
> Key: PIG-4412
> URL: https://issues.apache.org/jira/browse/PIG-4412
> Project: Pig
> Issue Type: Bug
> Components: impl
> Reporter: Josh Wills
> Assignee: Josh Wills
> Fix For: 0.15.0
>
> Attachments: PIG-4412.patch
>
>
> Basically copying the issue described here:
> http://stackoverflow.com/questions/28327044/pig-streaming-some-output-files-are-missing
> Roughly, I believe the issue is that there is a race condition in the code in
> the HadoopExecutableManager that moves multiple output files from a script
> into HDFS and the MapReduce task that is shutting down after it writes the
> last bits from the "main" output of the STREAM task. Pig needs to make sure
> that the ExecutableManager is closed (and thus the files are moved from the
> local dir to HDFS) before it returns the end-of-stream tuple to signal that
> the stream is finished.
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