[jira] [Created] (HADOOP-14453) Split the maven modules into several profiles

["Tsz Wo Nicholas Sze (JIRA)" <ji...@apache.org>]

Tsz Wo Nicholas Sze created HADOOP-14453:
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             Summary: Split the maven modules into several profiles
                 Key: HADOOP-14453
                 URL: https://issues.apache.org/jira/browse/HADOOP-14453
             Project: Hadoop Common
          Issue Type: Improvement
          Components: build
            Reporter: Tsz Wo Nicholas Sze
            Assignee: Tsz Wo Nicholas Sze


Current all the modules are defined at directly under <project>.  As a result, we cannot select to build only some of the modules.  We have to build all the modules in any cases and, unfortunately, it takes a long time.

We propose split all the modules into multiple profiles so that we could build some of the modules by disabling some of the profiles.  All the profiles are enabled by default so that all the modules will be built by default. 

For example, when we are making change in common.  We could build and run tests under common by disabling hdfs, yarn, mapreduce, etc. modules.  This will reduce the development time spend on compiling unrelated modules.

Note that this is for local maven builds.   We are not proposing to change Jenkins builds, which always build all the modules.



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