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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2753) Generated POMs hardcode dependency on hadoop-common version 0.22.0-SNAPSHOT
Date Mon, 08 Aug 2011 00:20:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13080700#comment-13080700
] 

Konstantin Boudnik commented on MAPREDUCE-2753:
-----------------------------------------------

+1 patch looks good. I can see that correct version is generated in the newly installed pom
file for MR artifacts.

> Generated POMs hardcode dependency on hadoop-common version 0.22.0-SNAPSHOT
> ---------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2753
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2753
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.22.0
>         Environment: RHEL 6.1 & Ubuntu 11.04; Sun JDK 1.6_016 & Sun JDK 1.6.0_26;
Ant 1.8.2
>            Reporter: Joep Rottinghuis
>         Attachments: MAPREDUCE-2753-1.patch, MAPREDUCE-2753.patch
>
>
> The generated poms inject the version of mapred itself, but hardcode the version of hadoop-common
they depend on.
> When trying to build downstream projects (HBase), then they will require hadoop-common-0.22.0-SNAPSHOT.jar
instead of the version they compiled against.
> When trying to do an offline build this will fail to resolve as another hadoop-common
has been installed in the local maven repo.
> Even during online build, it should compile against the hadoop-common that hdfs compiled
against.
> When versions mismatch one cannot do a coherent build. That is particularly problematic
when making simultaneous change in hadoop-common and hadoop-mapreduce and you want to try
this locally before committing each.

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