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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 2010-10-06 12:45:19.045732)


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


Changes
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Removes all the sleeps from the test.  Adds a new 'isReady' flag into HMaster 
so we know when it has finished doing initialization.  There is now an 
'isActive()' and 'isReady()' which can be used to determine when the 
cluster/failover has been completed.  Exposes a method in MiniHBaseCluster 
called waitForActiveAndReadyMaster() which blocks until one of the masters 
becomes active and finish initializing.  That method can be interrupted and 
will also return false if there are no masters running at all.

Cleans up a little logging and comments as well.


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
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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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