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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8938) add option to do better diags of startup configuration
Date Wed, 17 Oct 2012 10:56:03 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Steve Loughran updated HADOOP-8938:

    Attachment: hdiag.py

This is not integrated with bin/hadoop; its what I use after execing all the preamble scripts
, especially {{hadoop-config.sh}} to see what the environment variables currently are. It
shows what I've found useful in the past
> 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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