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https://issues.apache.org/jira/browse/HBASE-3373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13178611#comment-13178611
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Zhihong Yu commented on HBASE-3373:
-----------------------------------
Since the table name in the outer map is only used for grouping purposes, I
think "ensemble" is a better name than "dummytable".
The code snippets in second comment are equivalent. I may keep my code since
this is patch 1 in a series of at least 3 patches.
The other two are: block location affinity utilization and better load
balancing heuristics for tables with presplit regions.
> Allow regions to be load-balanced by table
> ------------------------------------------
>
> Key: HBASE-3373
> URL: https://issues.apache.org/jira/browse/HBASE-3373
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 0.20.6
> Reporter: Ted Yu
> Fix For: 0.94.0
>
> Attachments: 3373.txt, HbaseBalancerTest2.java
>
>
> From our experience, cluster can be well balanced and yet, one table's
> regions may be badly concentrated on few region servers.
> For example, one table has 839 regions (380 regions at time of table
> creation) out of which 202 are on one server.
> It would be desirable for load balancer to distribute regions for specified
> tables evenly across the cluster. Each of such tables has number of regions
> many times the cluster size.
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