How large are the reads? Have you tried this on a better instance type such as was suggested a bit ago?
How much data is moving from the disks? On Mon, May 30, 2011 at 8:46 PM, Harold Lim <rold...@yahoo.com> wrote: > Hi Ted, > > It's a pure random read operation. > > > -Harold > --- On Mon, 5/30/11, Ted Dunning <tdunn...@maprtech.com> wrote: > > > From: Ted Dunning <tdunn...@maprtech.com> > > Subject: Re: How to improve HBase throughput with YCSB? > > To: user@hbase.apache.org > > Date: Monday, May 30, 2011, 3:07 PM > > What kind of operations? > > > > On Mon, May 30, 2011 at 9:43 AM, Harold Lim <rold...@yahoo.com> > > wrote: > > > > > Hi All, > > > > > > I have an HBase cluster on ec2 m1.large instance (10 > > region servers). I'm > > > trying to run a read-only YCSB workload. It seems that > > I can't get a good > > > throughput. It saturates to around 600+ operations per > > second. > > > > > > My dataset is around 200GB (~1k+ regions). Running > > major compaction and > > > also setting the handler count to 100 helped improve > > the performance a > > > little bit. > > > > > > Are there setting or configurations that I need to > > set? > > > > > > Thanks, > > > Harold > > > > > > > > >
