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https://issues.apache.org/jira/browse/ACCUMULO-3480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14287685#comment-14287685
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Keith Turner commented on ACCUMULO-3480:
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Looking at your profiling info, I was noticing that 26% was in
{{populateMigrations}}. We know what 11% of that is. Looking at the code, I
noticed that code always does a lot of work (even if there are no moves). I
made the method do nothing if there are no moves. With this change the time
when things are already balanced went from .95 secs to .52 secs.
> 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
>
>
> [~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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