I think you are thinking of the hdfs balancer as opposed to the hbase region balancer that I was referring too. You could run a 0.90.3 master on your 0.90.1 cluster if you wanted....the master has the balancer code (but probably best to upgrade all to 0.90.3 anyways).
St.Ack On Tue, Jun 7, 2011 at 3:02 PM, Geoff Hendrey <[email protected]> wrote: > Thanks for the reply! > > We are on 90.1. > > Does this mean I could run the 90.2 balancer on my existing 90.1 cluster > to rebalance the tables a bit? > > -geoff > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > Stack > Sent: Tuesday, June 07, 2011 2:16 PM > To: [email protected] > Cc: [email protected] > Subject: Re: distribution of regions to servers > > Hey Geoff: > > Is this a 0.90.2 (or .3) hbase? It had some fixup done on the > balancer to make it a little more random. > > Otherwise, yes, a table should be better spread about the cluster. > This has come up a few times here in the past. The case has been > well-made by now that the balancer needs to take into consideration > the table a region is from and make an effort at distributing tables > evenly across the cluster (There is an issue for this already). > > St.Ack > > On Tue, Jun 7, 2011 at 11:33 AM, Geoff Hendrey <[email protected]> > wrote: >> I have a table with a hundred or so regions. When I look in the hbase >> web ui, I see that all the regions are on one server. Of course we > have >> many other tables and lots of data. Some tables seem to distribute > their >> regions amongst many servers. >> >> >> >> I know there probably isn't a "pat" answer to this but: wouldn't I > want >> a large table with many regions to be distributed across many > machines? >> Just curious to understand the nuance. If I *do* want a uniform >> distribution of regions to servers, how would I achieve it? >> >> >> >> -geoff >> >> >
