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Ship it!


Looks great.


trunk/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
<http://review.cloudera.org/r/1186/#comment5933>

    Add to log the type of bulk assign.



trunk/src/main/java/org/apache/hadoop/hbase/master/LoadBalancer.java
<http://review.cloudera.org/r/1186/#comment5934>

    This is ok for first cut.  Later here we should favor servers who are 'new' 
or not mentioned in .META..


- stack


On 2010-11-06 14:38:34, Jonathan Gray wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> http://review.cloudera.org/r/1186/
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> 
> (Updated 2010-11-06 14:38:34)
> 
> 
> Review request for hbase, stack and khemani.
> 
> 
> Summary
> -------
> 
> Adds a configuration option (default true in this patch) for retaining 
> assignment on startup.  If true, initial assignment plan attempts to use 
> existing assignment info from META (we don't delete assignment info in META 
> when RS closes region).
> 
> Also changes initial assignment to skip regions from disabled tables rather 
> than looking at offline flag.
> 
> 
> This addresses bug HBASE-2896.
>     http://issues.apache.org/jira/browse/HBASE-2896
> 
> 
> Diffs
> -----
> 
>   trunk/src/main/java/org/apache/hadoop/hbase/catalog/MetaReader.java 1032133 
>   trunk/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java 
> 1032133 
>   trunk/src/main/java/org/apache/hadoop/hbase/master/LoadBalancer.java 
> 1032133 
>   trunk/src/test/java/org/apache/hadoop/hbase/master/TestLoadBalancer.java 
> 1032133 
> 
> Diff: http://review.cloudera.org/r/1186/diff
> 
> 
> Testing
> -------
> 
> I will write a new unit test of the load balancing method to make sure it 
> does what is expected.
> 
> I could write a cluster-level TestRetainAssignment test which actually tests 
> it works end to end but I'm not sure it's necessary.  Could also add some 
> modification to TestClusterRestart or whatever that one is.
> 
> 
> Thanks,
> 
> Jonathan
> 
>

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