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From "Jonathan Gray" <jg...@apache.org>
Subject Re: Review Request: Add ability to have multiple Masters in LocalHBaseCluster for test writing
Date Wed, 06 Oct 2010 01:15:55 GMT

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This is an automatically generated e-mail. To reply, visit:
http://review.cloudera.org/r/925/
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(Updated 2010-10-05 18:15:55.818277)


Review request for hbase, stack, Karthik Ranganathan, and Kannan Muthukkaruppan.


Changes
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Incorporates changes from stack review.

Test itself is the same.  I'd like to get this committed and then will work on more tests
as a separate JIRA.  The changes to HMaster and HRS are hard to keep up to date with trunk
and I'll be doing more tests w/ this stuff over the next two weeks.


Summary
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To really be able to unit test the new master properly, we need to be able to have multiple
masters running at once within a single logical cluster.

Also exposes methods to get the currently active master and can access each individually in
the same way that it's done for multiple RS.

This is mostly duplicating what we do for RS but for masters.


This addresses bug HBASE-3053.
    http://issues.apache.org/jira/browse/HBASE-3053


Diffs (updated)
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  trunk/src/main/java/org/apache/hadoop/hbase/HConstants.java 1004853 
  trunk/src/main/java/org/apache/hadoop/hbase/LocalHBaseCluster.java 1004853 
  trunk/src/main/java/org/apache/hadoop/hbase/master/HMaster.java 1004853 
  trunk/src/main/java/org/apache/hadoop/hbase/master/HMasterCommandLine.java 1004853 
  trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java 1004853 
  trunk/src/main/java/org/apache/hadoop/hbase/util/JVMClusterUtil.java 1004853 
  trunk/src/main/java/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.java 1004853 
  trunk/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java 1004853 
  trunk/src/test/java/org/apache/hadoop/hbase/MiniHBaseCluster.java 1004853 
  trunk/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java PRE-CREATION


Diff: http://review.cloudera.org/r/925/diff


Testing
-------

Untested but compiles.  This is first go at a patch.  I'm going to work on writing a new unit
test that uses this next.


Thanks,

Jonathan


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