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