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