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From "Brian Loss (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-3439) Balance groups of tablets within a table evenly
Date Wed, 14 Jan 2015 15:35:35 GMT


Brian Loss commented on ACCUMULO-3439:

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.

> Balance groups of tablets within a table evenly
> -----------------------------------------------
>                 Key: ACCUMULO-3439
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Keith Turner
>            Assignee: Keith Turner
>             Fix For: 1.7.0
>          Time Spent: 10m
>  Remaining Estimate: 0h
> For Fluo applications, the ability to balance groups of tablets within a table evenly
is needed.   This could be done with a new tablet balancer could do this.  This balancer should
have the following properties.
>  * Allows user to define function to group tablets.
>  * Spreads groups of tablet evenly across tservers.
>  * Minimizes on the number of groups present on each tserver.

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