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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8938) add option to do better diags of startup configuration
Date Wed, 17 Oct 2012 16:36:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13478011#comment-13478011

Daryn Sharp commented on HADOOP-8938:

Although by no means perfect and I'm not promoting it as the solution, I often use "sh -x
<hadoop-cmd>" to aid in debugging.
> add option to do better diags of startup configuration
> ------------------------------------------------------
>                 Key: HADOOP-8938
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8938
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: bin
>    Affects Versions: 1.1.0, 2.0.2-alpha
>            Reporter: Steve Loughran
>            Priority: Minor
>         Attachments: hdiag.py
> HADOOP-8931 shows a symptom of a larger problem: we need better diagnostics of what all
the environment variables and settings going through the hadoop scripts to find out why something
isn't working. 
> Ideally some command line parameter to the scripts (or even: a new environment variable)
could trigger more display of critical parameters.

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