We've been trying to keep the heap as small as possible; the disk access
penalty on EC2 is big enough - even on instance store - that you want to give
as much memory to disk caches as you can. Of course, then you will need to
keep extra vigilant on your garbage collection and tune various thin
The advice I heard at the New York C* conference...which we follow is to
use the m2.2xlarge and give it about 8 GB. The m2.4xlarge seems overkill
(or at least over price).
Brian
On Fri, Aug 23, 2013 at 6:12 PM, David Laube wrote:
> Hi All,
>
> We are evaluating our JVM heap size configuration
Hi All,
We are evaluating our JVM heap size configuration on Cassandra 1.2.8 and would
like to get some feedback from the community as to what the proper JVM heap
size should be for cassandra nodes deployed on to Amazon EC2. We are running
m2.4xlarge EC2 instances (64GB RAM, 8 core, 2 x 840GB d
