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https://issues.apache.org/jira/browse/HBASE-3779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021616#comment-13021616
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Michael Segel commented on HBASE-3779:
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Just a silly question... how do you determine the load on a region server? How
does a regionserver track the loads of other region servers? How often is the
load recalculated? Is it also a weighted load based on load over time?
A random placement would be a start and maybe that's all that one needs...
trying to calculate which region server to place a split on may be too costly.
Also with [HBASE-3586] - Improve the selection of regions to balance, wouldn't
this kind of be redundant? I mean do a random transfer and then let HBase
rebalance over time?
Sorry to jump in at the end of this...
> 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
> Attachments: 3779.patch
>
>
> 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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