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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Cassandra uses more memory than Xmx
Date Wed, 16 Jun 2010 17:14:26 GMT
you're just seeing address space used by mmap, not actually
allocated-by-the-jvm memory.

On Wed, Jun 16, 2010 at 7:02 AM, György Dózsa <dozsyy@gmail.com> wrote:
> Hi,
> I have a Cassandra cluster and I set java Xmx to 2G in cassandra.in.sh in
> every node, but the memory usage of cassandra daemon is 3 or 4 times of that
> (so 6-8 Gb).
> Have you got any idea to decrease the memory usage of cassandra?
> There are 4 nodes in the cluster and the system has approx 1000 reads and
> writes per sec.
> Every node has debian.
> --
> Thx,
> Gyuri
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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