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From Ashley Martens <amart...@ngmoco.com>
Subject Re: 0.7.9 RejectedExecutionException
Date Mon, 10 Oct 2011 16:00:31 GMT
I have check both the output file and the system log, neither have errors in
them. I don't believe anything external is killing the process, I could be
wrong but this node's setup is the same as all my other nodes (including
hardware) so it doesn't make much sense.


jsvc.exec -user cassandra -home /usr/lib/jvm/java-6-openjdk/jre/bin/../
-pidfile /var/run/cassandra.pid -errfile &1 -outfile
/var/log/cassandra/output.log -cp
/usr/share/cassandra/antlr-3.1.3.jar:/usr/share/cassandra/apache-cassandra-0.7.8.jar:/usr/share/cassandra/apache-cassandra.jar:/usr/share/cassandra/avro-1.4.0-fixes.jar:/usr/share/cassandra/avro-1.4.0-sources-fixes.jar:/usr/share/cassandra/commons-cli-1.1.jar:/usr/share/cassandra/commons-codec-1.2.jar:/usr/share/cassandra/commons-collections-3.2.1.jar:/usr/share/cassandra/commons-lang-2.4.jar:/usr/share/cassandra/concurrentlinkedhashmap-lru-1.1.jar:/usr/share/casandra/guava-r05.jar:/usr/share/cassandra/high-scale-lib.jar:/usr/share/cassandra/jackson-core-asl-1.4.0.jar:/usr/share/cassandra/jackson-mapper-asl-1.4.0.jar:/usr/share/cassandra/jetty-6.1.21.jar:/usr/share/cassandra/jetty-util-6.1.21.jar:/usr/share/cassandra/jline-0.9.94.jar:/usr/share/cassandra/json-simple-1.1.jar:/usr/share/cassandra/jug-2.0.0.jar:/usr/share/cassandra/libthrift-0.5.jar:/usr/share/cassandra/log4j-1.2.16.jar:/usr/share/cassandra/servlet-api-2.5-20081211.jar:/usr/share/cassandra/slf4j-api-1.6.1.jar:/usr/share/cassandra/slf4j-log4j12-1.6.1.jar:/usr/share/cassandra/snakeyaml-1.6.jar:/usr/share/java/jna.jar:/etc/cassandra:/usr/share/java/commons-daemon.jar
-Dlog4j.configuration=log4j-server.properties
-XX:HeapDumpPath=/var/lib/cassandra/java_1318260751.hprof
-XX:ErrorFile=/var/lib/casandra/hs_err_1318260751.log -ea
-XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms24196M -Xmx24196M
-Xmn1600M -XX:+HeapDumpOnOutOfMemoryError -Xss128k -XX:+UseParNewGC
-XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:SurvivorRatio=8
-XX:MaxTenuringThreshold=1 -XX:CMSInitiatingOccupancyFraction=75
-XX:+UseCMSInitiatingOccupancyOnly -Djava.net.preferIPv4Stack=true
-Dcom.sun.management.jmxremote.port=8080
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false
org.apache.cassandra.thrift.CassandraDaemon

I have munin monitoring of JMX so when I talk about heap max then I'm
referring to:

jmxObjectName java.lang:type=Memory
jmxAttributeName HeapMemoryUsage
jmxAttributeKey max

The other crazy thing is the heap used is no where close to heap max.

On Mon, Oct 10, 2011 at 12:40 AM, aaron morton <aaron@thelastpickle.com>wrote:

> Have you checked /var/log/cassandra/output.txt (the packaged install pipes
> std out/err to there) or the system logs ? If there are no errors in the
> logs it may well be something external killing it.
>
> With regard to memory usage, it's hard for people to help unless you
> provide some numbers. What do you mean by MAX heap ? Is this the max used
> heap size reported by JMX or the -Xmx setting passed to the server ?
>
>

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