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https://issues.apache.org/jira/browse/HBASE-18640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16135402#comment-16135402
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Appy commented on HBASE-18640:
------------------------------
003.patch
Second cut based on earlier discussions. Aim was to have two modules.
However, because of tight coupling with backup module (of classes snapshot,
hfile and wal related classes) and TestReplicationSmallTests (with
VerifyReplication.class), only 9 prod classes and 40 test classes could be
moved to second module.
Once backup module is split out, we can move most of the remaining ones out too.
> Move mapreduce out of hbase-server into separate hbase-mapreduce moduel
> -----------------------------------------------------------------------
>
> Key: HBASE-18640
> URL: https://issues.apache.org/jira/browse/HBASE-18640
> Project: HBase
> Issue Type: Bug
> Reporter: Appy
> Assignee: Appy
> Attachments: HBASE-18640.master.001.patch,
> HBASE-18640.master.002.patch, HBASE-18640.master.003.patch
>
>
> (Couldn't find another dedicated jira, so creating new one).
> Uploaded patch which is moving ~60 files to the new module. Few notes:
> - The classes remaining in hbase-server are the ones which are intensively
> coupled with visibility labels/wal/filesystem/hfile. These can not be
> migrated to new module until corresponding subcomponents are untangled out of
> hbase-server into their own separate modules.
> - Almost all mapreduce tests uses HBaseTestingUtil, so they can't be moved to
> hbase-mapreduce module. Given these dependency constraints, one way would be
> having a separate module for tests:
> hbase-mapreduce <---- hbase-server <------- hbase-mapreduce-tests
> Imo, this makes sense and looks fine.
> The only issue is - yetus' pre-commit. It won't run tests in
> hbase-mapreduce-tests module if something changed in just hbase-mapreduce.
> However, yetus' limitation shouldn't warrant against the idea.
> So i'd say that we should go that way, unless there are better suggestions.
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