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https://issues.apache.org/jira/browse/HBASE-862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13064940#comment-13064940
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Nicolas Spiegelberg commented on HBASE-862:
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We got bit by this in our 89 branch a couple weeks back. Looking at the trunk
and I don't see "hbase.regions.close.max" anywhere? Is this still an issue?
What are we doing to limit regionsToMove.size()?
> region balancing is clumsy
> --------------------------
>
> Key: HBASE-862
> URL: https://issues.apache.org/jira/browse/HBASE-862
> Project: HBase
> Issue Type: Bug
> Reporter: stack
>
> Daniel Leffel has an install of 500 regions on 4 nodes. He's running 0.2.0.
> On restart, load balancing is running while the 600 regions are being
> initially opened. Makes for churn. Load balancing should wait before it
> cuts in.
> Have also seen on occasion that it will not find equilibrium after a restart.
> Adding a node is catastrophic. >20% of the regions were closed and were
> taking the longest time to show up on the new server. I would think that the
> region balancing would work in more sophisticated and gradual manner.
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