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Date: Thu, 1 Jul 2010 00:25:52 -0400 (EDT)
From: "Hemanth Yamijala (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-6800) Harmonize JAR library versions
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     [ https://issues.apache.org/jira/browse/HADOOP-6800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hemanth Yamijala updated HADOOP-6800:
-------------------------------------

    Status: Open  (was: Patch Available)

> Harmonize JAR library versions
> ------------------------------
>
>                 Key: HADOOP-6800
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6800
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Tom White
>            Assignee: Tom White
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: build.sh, HADOOP-6800.patch, HADOOP-6800.patch, HADOOP-6800.patch, ivy-declarations.dump.merged, jars-in-lib.dump.merged, tar-munge
>
>
> Currently, multiple versions of the same library JAR are being pulled in for various reasons.
> * Within the same project, multiple versions of the same JAR are pulled in. E.g. Avro (used by Common) depends on Commons Lang 2.5 while Common depends on Commons Lang 2.4.
> * Dependent subprojects use different versions. E.g. Common depends on Avro 1.3.2 while MapReduce depends on 1.3.0. Since MapReduce depends on Common, this has the potential to cause a problem at runtime.

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