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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3379) Document the "stream.non.zero.exit.status.is.failure" knob for streaming
Date Tue, 10 Jun 2008 11:20:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12603839#action_12603839
] 

Amareshwari Sriramadasu commented on HADOOP-3379:
-------------------------------------------------

Actually the patch uploaded has the configuration property _stream.non.zero.exit.is.failure_
value as _true_. 

If we want 'streaming always fail the task for non-zero exit codes', we can just remove the
configuration property and document to wrap commands as Rick pointed. But doesn't this make
applications incompatible from 0.17 to 0.18 ? Shouldnt we deprecate the configuration property
for 0.18?
Thoughts?

I think making the configuration property _stream.non.zero.exit.is.failure_ value as _true_
makes sense.

> Document the "stream.non.zero.exit.status.is.failure" knob for streaming
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-3379
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3379
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/streaming, documentation
>    Affects Versions: 0.17.0
>            Reporter: Arun C Murthy
>            Assignee: Amareshwari Sriramadasu
>            Priority: Blocker
>             Fix For: 0.18.0
>
>         Attachments: patch-3379.txt
>
>
> HADOOP-2057 added a useful feature: "stream.non.zero.exit.status.is.failure" to optionally
treat non-zero exit code from streaming apps as fatal. We should document this on http://hadoop.apache.org/core/docs/current/streaming.html.

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