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Posted to mapreduce-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2009/10/15 07:20:33 UTC

[jira] Created: (MAPREDUCE-1114) Speed up ivy resolution in builds with clever caching

Speed up ivy resolution in builds with clever caching
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                 Key: MAPREDUCE-1114
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1114
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: build
    Affects Versions: 0.22.0
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon
            Priority: Minor


An awful lot of time is spent in the ivy:resolve parts of the build, even when all of the dependencies have been fetched and cached. Profiling showed this was in XML parsing. I have a sort-of-ugly hack which speeds up incremental compiles (and more importantly "ant test") significantly using some ant macros to cache the resolved classpaths.

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