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https://issues.apache.org/jira/browse/ACCUMULO-3480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14287789#comment-14287789
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Keith Turner commented on ACCUMULO-3480:
----------------------------------------

Wow, it seems like the switch from TreeMap to HashMap made a bigger difference 
for your test case than mine.

For your test case how long does the call to balance take when everything is 
already balanced?

> GroupBalancer improvements
> --------------------------
>
>                 Key: ACCUMULO-3480
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3480
>             Project: Accumulo
>          Issue Type: Bug
>            Reporter: Keith Turner
>            Assignee: Keith Turner
>             Fix For: 1.7.0
>
>         Attachments: ACCUMULO-3480-1.patch, ACCUMULO-3480-2.patch, 
> ACCUMULO-3480-3.patch
>
>
> [~bfloss] made the following comment on ACCUMULO-3439
> bq. The balance method in GroupBalancer does nothing if there are any 
> incoming migrations. You probably want to check the incoming migrations and 
> only bail out if any of those migrations are for the specific table that the 
> GroupBalancer is managing.
> I chatted w/ Brian and he also mentioned that the group balancer should 
> record time at the end, and not the beginning.  



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