The hypervisor steals a lot of CPU time from m1.large instances. You should be using c1.xlarge instances.
Are you using local storage or EBS? Be aware that I/O performance on EC2 for any system is lower than if you are using real hardware, significantly so if not using one of the instance types with I/O performance listed as "high". > 2011/5/30 Harold Lim <[email protected]> > > > Hi All, > > > > I have an HBase cluster on ec2 m1.large instance (10 > > region servers).
