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https://issues.apache.org/jira/browse/HBASE-3779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021396#comment-13021396
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zhoushuaifeng commented on HBASE-3779:
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This is a problem shoud be considered. When one region is spliting, it's
usually heavy loaded. So, the daughter region usually heavy loaded too. Case
became even worse when the same situation happened on the daughters. If the
daughter are all opened on the same server, this server may become overload and
the performance of the system may become worse.
It's better to consider the load information when placing the daughter regions.
Simply, randomly assign the daughter regions is a good choice.
> Allow split regions to be placed on different region servers
> ------------------------------------------------------------
>
> Key: HBASE-3779
> URL: https://issues.apache.org/jira/browse/HBASE-3779
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 0.90.2
> Reporter: Ted Yu
> Assignee: Ted Yu
>
> Currently daughter regions are placed on the same region server where the
> parent region was.
> Stanislav Barton mentioned the idea that load information should be
> considered when placing the daughter regions.
> The rationale is that the daughter regions tend to receive more writes. So it
> would be beneficial to place at least one daughter region on a different
> region server.
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