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From Andrew Purtell <apurt...@apache.org>
Subject Re: How to improve HBase throughput with YCSB?
Date Tue, 31 May 2011 00:33:38 GMT
The hypervisor steals a lot of CPU time from m1.large instances.  You should be using c1.xlarge

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 <rold_50@yahoo.com>
> > Hi All,
> >
> > I have an HBase cluster on ec2 m1.large instance (10
> > region servers).

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