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Date: Fri, 18 Jan 2013 06:36:12 +0000 (UTC)
From: "Zesheng Wu (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Message-ID: <JIRA.12628161.1358490924429.157444.1358490972985@arcas>
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Subject: [jira] [Created] (CONFIGURATION-522) support specify config items
 through system property
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Zesheng Wu created CONFIGURATION-522:
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             Summary: 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
             Fix For: 2.x


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

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