That is what my experience is. When we add nodes, the regions get rebalanced 
across the old and new nodes...... 

-----Original Message-----
From: jeremy p [mailto:athomewithagroove...@gmail.com] 
Sent: Wednesday, May 15, 2013 2:26 PM
To: user@hbase.apache.org
Subject: What happens when you add new HBase nodes to a cluster?

Hey all,

We're wanting to add 10 additional nodes to our 20-node HBase cluster.  Our 
tables are pre-split into 800 regions, 40 regions to a machine.  What will 
happen when we add 10 new nodes to the cluster?  Will the HBase load balancer 
automatically re-distribute these regions to the new nodes?  If so, will we 
have 26 regions on some machines and 27 on others?

Thanks!

--Jeremy

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