Hi Ted, I iostat my region server and it seems that there is an imbalance in the read requests of the disks.
Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn xvdap1 0.40 0.00 0.00 0 0 xvdb 429.00 11.65 0.07 116 0 xvdc 166.50 4.54 0.00 45 0 xvdd 395.20 10.78 0.00 107 0 xvde 168.10 4.53 0.00 45 0 I checked my other region servers and they are showing the same behavior. Thanks, Harold --- On Tue, 5/31/11, Ted Dunning <[email protected]> wrote: > From: Ted Dunning <[email protected]> > Subject: Re: How to improve HBase throughput with YCSB? > To: [email protected] > Date: Tuesday, May 31, 2011, 2:23 AM > Try iostat or if you are running it, > try ganglia. > > On Mon, May 30, 2011 at 10:07 PM, Harold Lim <[email protected]> > wrote: > > > How do I know how much data is moving from the disk? > > >
