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From "Joep Rottinghuis (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2753) Generated POMs hardcode dependency on hadoop-common version 0.22.0-SNAPSHOT
Date Fri, 29 Jul 2011 17:37:32 GMT
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

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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