Hi Ted! HBase doesn't currently take local node resources into account when balancing across region servers. There's currently some discussion on HBASE-11780 about building this funtionality[1]. I'm sure they'd love more input or details about the scale you'd need to work at.
-Sean [1]: https://issues.apache.org/jira/browse/HBASE-11780 On Fri, Aug 22, 2014 at 4:07 PM, Ted Tuttle <[email protected]> wrote: > Hello Ted- > > We are considering added new nodes to existing cluster that have higher > storage capacity than current nodes. We hope, but do not know, that HBase > would assign more regions to RSs that have more storage capacity. > > We are considering 2x storage on new nodes vs current node. > > Thanks, > Ted > > From: Ted Yu [mailto:[email protected]] > Sent: Friday, August 22, 2014 1:58 PM > To: [email protected] > Cc: Development > Subject: Re: RS storage capacity mismatches > > Some clarification: by unequal storage capacity, you are expecting certain > region servers to host fewer regions, right ? > > How big is the difference between memory capacity among the old and new > servers ? > > Cheers > > On Fri, Aug 22, 2014 at 1:52 PM, Ted Tuttle <[email protected]<mailto: > [email protected]>> wrote: > Hello- > > How does HBase handle region servers with unequal storage capacity? We > made the original nodes of our cluster a bit light on storage and are > wondering what would happen is we started adding nodes w/ more storage > capacity. > > Thanks, > Ted > > -- Sean
