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From "Rick Cox (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3379) Document the "stream.non.zero.exit.status.is.failure" knob for streaming
Date Mon, 26 May 2008 16:37:56 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12599870#action_12599870
] 

Rick Cox commented on HADOOP-3379:
----------------------------------

It seems reasonable for the default to be true, as I think the discussion has shown users
expect it.

Making it non-optional would remove the ability to run 'grep' and similar commands without
a wrapper (assuming the pattern is not in every input split). Perhaps that's ok; we could
just document a hint to wrap such commands in a shell script that always exits 0.

> 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
>            Priority: Minor
>             Fix For: 0.18.0
>
>
> 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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