See also HBASE-12139 StochasticLoadBalancer doesn't work on large lightly loaded clusters
Cheers On Thu, Oct 2, 2014 at 10:35 AM, Jean-Marc Spaggiari < jean-m...@spaggiari.org> wrote: > Also, What is the balancer configured on your cluster? Which HBase version? > If you have a 200 region table in a cluster with another pretty small 13 > region table like the one you have, chances are high for this 2nd table to > not be perfectly balanced over the cluster compared to the first one. > > JM > > 2014-10-02 13:30 GMT-04:00 Nick Dimiduk <ndimi...@gmail.com>: > > > Is the balancer running? If it's running but unable to act, you should > see > > some explanation in the Master logs. > > > > On Wed, Oct 1, 2014 at 8:27 PM, Tao Xiao <xiaotao.cs....@gmail.com> > wrote: > > > > > Hi all, > > > > > > I have a HBase table containing 40 million records. Checking HBase UI, > I > > > could see that this table was not spread evenly across the cluster. Two > > > nodes, *ec1.hadoop.com:60020 <http://ec1.hadoop.com:60020>* and > > > *ec5.hadoop.com:60020 > > > <http://ec5.hadoop.com:60020>*, for example, has only one region each, > > > while other nodes have more regions. Here is the screen shot > > > <http://imgbin.org/index.php?page=image&id=19571>. > > > > > > I tried to split that table by clicking the button "Split". Later, each > > > region of that table was split into two regions, but all regions for > that > > > table as a whole were still unevenly spread across the cluster. Here > > > is a screen > > > shot after I click the button "Split" > > > <http://imgbin.org/index.php?page=image&id=19572>. > > > > > > So I'd like to know how to adjust the regions for a table so that all > > > regions for that table can be evenly spread across the cluster. > > > > > > Thanks > > > > > >
