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Date: Fri, 18 Jan 2013 08:30:12 +0000 (UTC)
From: "Joerg Schaible (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Message-ID: <JIRA.12628161.1358490924429.157762.1358497812959@arcas>
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Subject: [jira] [Closed] (CONFIGURATION-522) support specify config items
 through system property
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     [ https://issues.apache.org/jira/browse/CONFIGURATION-522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joerg Schaible closed CONFIGURATION-522.
----------------------------------------

    Resolution: Invalid

Sorry, but Apache Commons Configurations is a completely different project and has nothing to do with Apache Hadoop.
                
> support specify config items through system property
> ----------------------------------------------------
>
>                 Key: CONFIGURATION-522
>                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-522
>             Project: Commons Configuration
>          Issue Type: Improvement
>          Components: Interpolation
>    Affects Versions: 2.x
>            Reporter: Zesheng Wu
>            Priority: Minor
>              Labels: configuration, property, system
>             Fix For: 2.x
>
>         Attachments: CONFIGURATION-522.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> The current hadoop config items are mainly interpolated from the *-site.xml files. In our production environment, we need a mechanism that can specify config items through system properties, which is something like the gflags for system built with C++, it's really very handy.
> The main purpose of this patch is to improve the convenience of hadoop systems, especially when people do testing or perf tuning, which always need to modify the *-site.xml files
> If this patch is applied, then people can start hadoop programs in this way: java -cp $class_path -Dhadoop.property.$name=$value $program

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