I dont remember setting up snitch.
The servers are all in a VPC, the only thing I did was configure the seed IP so all the nodes can see each other.
I would look at http://www.slideshare.net/mattdennis/cassandra-on-ec2
Also, people generally do raid0 on the ephemerals.
EBS is a bad fit for cassandra - see the presentation above. However, that means you'll need to have a backup strategy, which is also mentioned in the presentation.
Also are you using the ec2snitch or the property file snitch?
On Sep 3, 2011, at 5:09 PM, Ben Ashton wrote:
> I've been dropped in it a little and had to build a prod setup going live on monday.
> At the moment I have setup three server in EC2 US, one each AZ
> the servers are setup as follows:-
> m1.xlarge using the Amazons AMI instance storage image, the ephemerals 4 x 420 GB setup in raid10 and formatted with xfs mounted as /cassandra with all the cassandra data in /cassandra
> I've got the ring setup with 33% on each server.
> I imagine I'd need to setup some EBS cassandra servers and insert them in the ring, so I have a persistence, would m.large be OK for this?
> I've been reading http://wiki.apache.org/cassandra/ and http://www.datastax.com/docs/0.8/index but can anyone recommend a book I can buy this weekend or another web source for best practice?
> What are the best ways to stress test? stress.java?