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https://issues.apache.org/jira/browse/HADOOP-3789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White updated HADOOP-3789:
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Attachment: hadoop-3789.patch
This patch extends PipeMapRed so that when a HadoopStreaming subprocess
terminates with a nonzero exit code, and it's recognized as task failure due to
stream.non.zero.exit.is.failure, the resulting Java exception carries recent
subprocess stderr. "Recent" means more recent than the last "reporter:" line on
stderr, limited to a maximum of 2K (configurable)
> Include more detail in the exception message when a streaming task fails
> ------------------------------------------------------------------------
>
> Key: HADOOP-3789
> URL: https://issues.apache.org/jira/browse/HADOOP-3789
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/streaming
> Reporter: Tom White
> Fix For: 0.19.0
>
> Attachments: hadoop-3789.patch
>
>
> When debugging streaming programs, it would be useful to have the last few
> lines from stderr in the exception message (which is shown in the task's
> status display).
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