Thank you, actually the mmap uses my memory. But is there a way to limit the memory usage of mmap? Because the memory usage of Cassandra goes incredible high (~7Gb on a 8Gb machine).
Thx Dozsy 2010/6/16 Jonathan Ellis <jbel...@gmail.com> > 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 <doz...@gmail.com> wrote: > > Hi, > > I have a Cassandra cluster and I set java Xmx to 2G in cassandra.in.shin > > 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 > -- Üdv: Gyuri
