Thanks Don, Yes have followed those steps. Except jna. The version I am using is 3.2.4. The link you have shared is for Cassandra 2.0. I am using 1.1. Let me install jna 3.2.7 and see if that helps.
Thanks On Wed, Mar 26, 2014 at 5:38 PM, Donald Smith < donald.sm...@audiencescience.com> wrote: > Prem, > > > > Did you follow the instructions at > http://www.datastax.com/documentation/cassandra/2.0/cassandra/install/installRecommendSettings.html?scroll=reference_ds_sxl_gf3_2k > > > > And did you install jna-3.2.7.jar into /usr/share/java, as per > http://www.datastax.com/documentation/cassandra/2.0/mobile/cassandra/install/installJnaRHEL.html? > > > > Don > > > > *From:* prem yadav [mailto:ipremya...@gmail.com] > *Sent:* Wednesday, March 26, 2014 10:36 AM > *To:* user@cassandra.apache.org > *Subject:* Re: memory usage spikes > > > > here: > > > > ps -p `/usr/java/jdk1.6.0_37/bin/jps | awk '/Dse/ {print $1}'` uww > > > > SER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND > > 497 20450 0.9 31.0 4727620 2502644 ? SLl 06:55 3:28 > /usr/java/jdk1.6.0_37//bin/java -ea > -javaagent:/usr/share/dse/cassandra/lib/jamm-0.2.5.jar > -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms1968M -Xmx1968M > -Xmn400M -XX:+HeapDumpOnOutOfMemoryError -Xss190k -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=7199 > -Dcom.sun.management.jmxremote.ssl=false > -Dcom.sun.management.jmxremote.authenticate=false > -Dlog4j.configuration=log4j-server.properties > -Dlog4j.defaultInitOverride=true -Dcassandra-pidfile=/var/run/dse.pid -cp > :/usr/share/dse/dse.jar:/usr/share/dse/common/commons-codec-1.6.jar:/usr/share/dse/common/commons-io-2.4.jar:/usr/share/dse/common/guava-13.0.jar:/usr/share/dse/common/jbcrypt-0.3m.jar:/usr/share/dse/common/log4j-1.2.16.jar:/usr/share/dse/common/slf4j-api-1.6.1.jar:/usr/share/dse/common/slf4j-log4j12-1.6.1.jar:/etc/dse:/usr/share/java/jna.jar:/etc/dse/cassandra:/usr/share/dse/cassandra/tools/lib/stress.jar:/usr/share/dse/cassandra/lib/antlr-2.7.7.jar:/usr/share/dse/cassandra/lib/antlr-3.2.jar:/usr/share/dse/cassandra/lib/antlr-runtime-3.2.jar:/usr/share/dse/cassandra/lib/avro-1.4.0-cassandra-1.jar:/usr/share/dse/cassandra/lib/cassandra-all-1.1.9.10.jar:/usr/share/dse/cassandra/lib/cassandra-clientutil-1.1.9.10.jar:/usr/share/dse/cassandra/lib/cassandra-thrift-1.1.9.10.jar:/usr/share/dse/cassandra/lib/commons-cli-1.1.jar:/usr/share/dse/cassandra/lib/commons-codec-1.6.jar:/usr/share/dse/cassandra/lib/commons-lang-2.4.jar:/usr/share/dse/cassandra/lib/commons-logging-1.1.1.jar:/usr/share/dse/cassandra/lib/compress-lzf-0.8.4.jar:/usr/share/dse/cassandra/lib/concurrentlinkedhashmap-lru-1.3.jar:/usr/share/dse/cassandra/lib/guava-13.0.jar:/usr/share/dse/cassandra/lib/high-scale-lib-1.1.2.jar:/usr/share/dse/cassandra/lib/httpclient-4.0.1.jar:/usr/share/dse/cassandra/lib/httpcore-4.0.1.jar:/usr/share/dse/cassandra/lib/jackson-core-asl-1.9.2.jar:/usr/share/dse/cassandra/lib/jackson-mapper-asl-1.9.2.jar:/usr/share/dse/cassandra/lib/jamm-0.2.5.jar:/usr/share/dse/cassandra/lib/jline-0.9.94.jar:/usr/share/dse/cassandra/lib/joda-time-1.6.2.jar:/usr/share/dse/cassandra/lib/json-simple-1.1.jar:/usr/share/dse/cassandra/lib/libthrift-0.7.0.jar:/usr/share/dse/cassandra/lib/log4j-1.2.16.jar:/usr/share/dse/cassandra/lib/metrics-core-2.0.3.jar:/usr/share/dse/cassandra/lib/servlet-api-2.5.jar:/usr/share/dse/cassandra/lib/slf4j-api-1.6.1.jar:/usr/share/dse/cassandra/lib/snakeyaml-1.6.jar:/usr/share/dse/cassandra/lib/snappy-java-1.0.5.jar:/usr/share/dse/cassandra/lib/snaptree-0.1.jar:/usr/share/dse/cassandra/lib/stringtemplate-3.2.jar::/usr/share/dse/solr/lib/solr-4.0.2.4-SNAPSHOT-uber.jar:/usr/share/dse/solr/lib/solr-web-4.0.2.4-SNAPSHOT.jar:/usr/share/dse/solr/conf::/usr/share/dse/tomcat/lib/annotations-api-6.0.32.jar:/usr/share/dse/tomcat/lib/catalina-6.0.32.jar:/usr/share/dse/tomcat/lib/catalina-ha-6.0.32.jar:/usr/share/dse/tomcat/lib/coyote-6.0.32.jar:/usr/share/dse/tomcat/lib/el-api-6.0.29.jar:/usr/share/dse/tomcat/lib/jasper-6.0.29.jar:/usr/share/dse/tomcat/lib/jasper-el-6.0.29.jar:/usr/share/dse/tomcat/lib/jasper-jdt-6.0.29.jar:/usr/share/dse/tomcat/lib/jsp-api-6.0.29.jar:/usr/share/dse/tomcat/lib/juli-6.0.32.jar:/usr/share/dse/tomcat/lib/servlet-api-6.0.29.jar:/usr/share/dse/tomcat/lib/tribes-6.0.32.jar:/usr/share/dse/tomcat/conf::/usr/share/dse/hadoop:/etc/dse/hadoop:/usr/share/dse/hadoop/lib/ant-1.6.5.jar:/usr/share/dse/hadoop/lib/automaton-1.11-8.jar:/usr/share/dse/hadoop/lib/commons-beanutils-1.7.0.jar:/usr/share/dse/hadoop/lib/commons-beanutils-core-1.8.0.jar:/usr/share/dse/hadoop/lib/commons-cli-1.2.jar:/usr/share/dse/hadoop/lib/commons-codec-1.4.jar:/usr/share/dse/hadoop/lib/commons-collections-3.2.1.jar:/usr/share/dse/hadoop/lib/commons-configuration-1.6.jar:/usr/share/dse/hadoop/lib/commons-digester-1.8.jar:/usr/share/dse/hadoop/lib/commons-el-1.0.jar:/usr/share/dse/hadoop/lib/commons-httpclient-3.0.1.jar:/usr/share/dse/hadoop/lib/commons-lang-2.4.jar:/u > > > > Its the spike in RAM usage. Now it is normal but keeps showing the spikes. > > > > On Wed, Mar 26, 2014 at 5:31 PM, Marcin Cabaj <marcin.ca...@datasift.com> > wrote: > > Hi, > > > > RSS or VIRT? > > > > Could you paste output of: > $ ps -p `jps | awk '/CassandraDaemon/ {print $1}'` uww > > please? > > > > On Wed, Mar 26, 2014 at 5:20 PM, prem yadav <ipremya...@gmail.com> wrote: > > Hi, > > in another thread, I has mentioned that we had issue with Cassandra > getting killed by kernel due to OOM. Downgrading to jdk6_37 seems to have > fixed it. > > > > However, even now, after every couple of hours, the nodes are showing a > spike in memory usage. > > For ex: on a 8GB ram machine, once the usage reached to 7.5 GB. > > and then slowly it comes down to normal. > > > > Cassandra version in use is 1.1.9.10. > > > > Any idea why this could be happening? There is no load on the cluster. > > > > Thanks. > > > > > > > > > > >
