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From vineet daniel <vineetdan...@gmail.com>
Subject Re: Capping the memory limit in cassandra
Date Tue, 07 Sep 2010 17:50:30 GMT
Hi

When is this happening I mean is Cassandra idle or application is
inserting/reading values from it .....are you running any map/reduce job at
that time.

Regards

Vineet Daniel
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On Tue, Sep 7, 2010 at 11:08 PM, Dathan Pattishall <dathanvp@gmail.com>wrote:

> 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?
>
>

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