incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Dathan Pattishall <datha...@gmail.com>
Subject Capping the memory limit in cassandra
Date Tue, 07 Sep 2010 17:38:41 GMT
For this java process

/opt/java/bin/java -ea -Xms1G -*Xmx7G *-XX:+UseParNewGC
-XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:SurvivorRatio=8
-XX:MaxTenuringThreshold=1 -XX:+HeapDumpOnOutOfMemoryError
-Dcom.sun.management.jmxremote.port=8181
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false
-Dstorage-config=/opt/cassandra/bin/../conf -cp
/opt/cassandra/bin/../conf:/opt/cassandra/bin/../build/classes:/opt/cassandra/bin/../lib/antlr-3.1.3.jar:/opt/cassandra/bin/../lib/apache-cassandra-0.6.4.jar:/opt/cassandra/bin/../lib/clhm-production.jar:/opt/cassandra/bin/../lib/commons-cli-1.1.jar:/opt/cassandra/bin/../lib/commons-codec-1.2.jar:/opt/cassandra/bin/../lib/commons-collections-3.2.1.jar:/opt/cassandra/bin/../lib/commons-lang-2.4.jar:/opt/cassandra/bin/../lib/google-collections-1.0.jar:/opt/cassandra/bin/../lib/hadoop-core-0.20.1.jar:/opt/cassandra/bin/../lib/high-scale-lib.jar:/opt/cassandra/bin/../lib/ivy-2.1.0.jar:/opt/cassandra/bin/../lib/jackson-core-asl-1.4.0.jar:/opt/cassandra/bin/../lib/jackson-mapper-asl-1.4.0.jar:/opt/cassandra/bin/../lib/jline-0.9.94.jar:/opt/cassandra/bin/../lib/json-simple-1.1.jar:/opt/cassandra/bin/../lib/libthrift-r917130.jar:/opt/cassandra/bin/../lib/log4j-1.2.14.jar:/opt/cassandra/bin/../lib/slf4j-api-1.5.8.jar:/opt/cassandra/bin/../lib/slf4j-log4j12-1.5.8.jar
org.apache.cassandra.thrift.CassandraDaemon

I set the max memory size to 7G yet Cassandra is taking


PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND



6992 root      18   0 32.8g  29g  21g S   19 93.9   5685:14
/opt/java/bin/java -ea -Xms1G* -Xmx7G *-XX:+UseParNewGC
-XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:SurvivorRatio=8
-XX:M

why is that, and how do I cap the memory used for cassandra? Is this a bug
or a mistake on my part?

Mime
View raw message