Thank for your response. Do you talk about virtual memory (column VIRT show in top command)? But I mention about column RES. In my case, VIRT is 61.8G, RES is 3.2G and SHR is 1.2G.
JMX show Memory Usage: Used : 600MB, Commit 2.1G, Max: 2.1G On Mon, Jul 18, 2011 at 11:59 AM, Jonathan Ellis <jbel...@gmail.com> wrote: > http://wiki.apache.org/cassandra/FAQ#mmap > > On Sun, Jul 17, 2011 at 11:54 PM, JKnight JKnight <beukni...@gmail.com> > wrote: > > Dear all, > > I use JMX to monitor Cassandra server. > > Heap Memory Usage show: > > Used : 600MB, Commit 2.1G, Max: 2.1G > > But htop show Cassandra process consume 3.1G. > > Could you tell me why Cassandra occupy memory very large than in used? > > Thank a lot for support. > > -- > > Best regards, > > JKnight > > > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of DataStax, the source for professional Cassandra support > http://www.datastax.com > -- Best regards, JKnight
