Patch on its way. See https://issues.apache.org/jira/browse/HBASE-3586. Should be up soon. St.Ack
On Wed, Mar 2, 2011 at 10:34 PM, Gaojinchao <[email protected]> wrote: > > hbase version: 0.90.0, 0.90.1 > > My cluster is 5 RS and 1 hmaster , I create table with multiple regions(50 > regions per RS) > the parallel is improved, but when the one RS is restarted. > it may be a large number of adjacent regions is reassigned to the restarted > one. > it reduce the parallelism. > eg: > > inital: > RS1 RS2 RS3 RS4 RS5 > Region [ a] [a,b] [b,c] [c,d] [d,f] > [f ,g] [g,h] .... ... .... > > RS2 restart: > RS1 RS2 RS3 RS4 RS5 > Region ... [ a] ... ... ... > [b c] > [c d] > [d,f] > .... > > why doesn't it improve the method of balanceCluster ? > which can get list of regionsToMove using random fashion instead of order > fashion > or add a configure parameter? > >
