Re: Cassandra scaling problem in virtualized environment

2011-07-12 Thread Jonathan Ellis
As Ryan said, Cassandra's really designed to manage DAS. That's probably a big part of the problem. If you have to use a SAN, I recommend checking out this thread: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Cassandra-on-iSCSI-td5945217.html On Tue, Jun 14, 2011 at 8:16 AM,

Cassandra scaling problem in virtualized environment

2011-06-14 Thread Schuilenga, Jan Taeke
Hi All, We are having issues testing Cassandra in a virtualized environment (Vmware ESX). Our challenge is to combine a high number of concurrent users with a very low maximum response time. Immediately we ran into a problem with scalability where our performance (Trx per sec) unexpectedly

Re: Cassandra scaling problem in virtualized environment

2011-06-14 Thread Ryan King
On Tue, Jun 14, 2011 at 8:16 AM, Schuilenga, Jan Taeke jantaeke.schuile...@ocwduo.nl wrote: Hi All, We are having issues testing Cassandra in a virtualized environment (Vmware ESX). Our challenge is to combine a  high number of concurrent users with a very low maximum response time.