region balancing is clumsy
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Key: HBASE-862
URL: https://issues.apache.org/jira/browse/HBASE-862
Project: Hadoop 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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