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https://issues.apache.org/jira/browse/HBASE-6730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13451067#comment-13451067
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Elliott Clark commented on HBASE-6730:
--------------------------------------

For a couple of reasons.  
* Currently the chores need to be interrupted when the master is being brought 
down and the balancer never gets a notification that things are shutting down.
* The balancer only has an instance of MasterServices which doesn't give access 
to getClusterStatus and I didn't want to change that interface.

However I agree that having a bunch of chores hanging off of the master just 
seems wrong, way too many threads and way too much in the master.  I can look 
at moving our chore's into something a little easier to remove from the master 
if you want, however that would be a little more code to change.
                
> Enable rolling averages in  StochasticLoadBalancer
> --------------------------------------------------
>
>                 Key: HBASE-6730
>                 URL: https://issues.apache.org/jira/browse/HBASE-6730
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 0.96.0
>
>         Attachments: HBASE-6730-1.patch
>
>
> Now that all of the ServerLoad transitions into pb are done.  the load 
> balancer should get more updates about the current state of the cluster.  
> This should be used to allow StochasticLoadBalancer to get rolling averages.

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