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https://issues.apache.org/jira/browse/HBASE-17159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15686743#comment-15686743
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Yu Li commented on HBASE-17159:
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IIRC, you mentioned some TODO tag in existing code for such improvement, mind
paste here for better understanding? Thanks. [~xharlie]
> Better the Assignment plan when server aborted or creating tables, etc.
> -----------------------------------------------------------------------
>
> Key: HBASE-17159
> URL: https://issues.apache.org/jira/browse/HBASE-17159
> Project: HBase
> Issue Type: New Feature
> Components: Balancer, Region Assignment
> Affects Versions: 2.0.0, 1.2.4
> Reporter: Charlie Qiangeng Xu
>
> When master processing a dead serve or creating a new table, the assignment
> plan would be generated based on the roundRobinAssignment method of balancer.
> Yet if these operations happen a lot, the cluster would be out of balance
> both on table level and server level. Balancer would be triggered and may
> cause huge amount of region moves( This is what we observed).
> Ideally, the assignment should be able to consider the table or cluster level
> balance as well as locality(for the case of dead server).
>
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