Dear Jonathan, Cassandra process has 63.5 GB virtual size. I mention about RES column in top. RES is 8.3G. Very large than 2.5G Used Memory Used show in JConsole.
On Fri, Aug 26, 2011 at 11:04 AM, Jonathan Ellis <jbel...@gmail.com> wrote: > Sounds like http://wiki.apache.org/cassandra/FAQ#mmap > > On Thu, Aug 25, 2011 at 10:36 PM, King JKing <beuk...@gmail.com> wrote: > > Dear all, > > My Cassandra 082 server had very large swap memory. > > JConsole show memory used just 2.9GB. But htop (top) show Cassandra > process > > take 8700MB. > > Here is my config: > > MAX_HEAP_SIZE="6G" > > HEAP_NEWSIZE="400M" > > JVM_OPTS="$JVM_OPTS -XX:+UseParNewGC" > > JVM_OPTS="$JVM_OPTS -XX:+UseConcMarkSweepGC" > > JVM_OPTS="$JVM_OPTS -XX:+CMSParallelRemarkEnabled" > > JVM_OPTS="$JVM_OPTS -XX:SurvivorRatio=8" > > JVM_OPTS="$JVM_OPTS -XX:MaxTenuringThreshold=2" > > JVM_OPTS="$JVM_OPTS -XX:CMSInitiatingOccupancyFraction=75" > > JVM_OPTS="$JVM_OPTS -XX:+UseCMSInitiatingOccupancyOnly" > > JConsole also show Memory Pool "Par Survivor Space" always full > (41MB/50MB) > > and never reduce. > > Could you help me? > > Thank a lot for support. > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of DataStax, the source for professional Cassandra support > http://www.datastax.com >
