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https://issues.apache.org/jira/browse/CASSANDRA-8723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14499960#comment-14499960
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Ariel Weisberg commented on CASSANDRA-8723:
-------------------------------------------
[~jeffl] If this is something that you are reproducing regularly in a test
environment it would help to get a heap dump some time before the process dies.
Maybe run a script in the background that checks whether CassandraDaemon is
running and dumps the heap every few minutes. We can look at what native
allocations exist via the heap dump since we wrap them all with POJOs.
> Cassandra 2.1.2 Memory issue - java process memory usage continuously
> increases until process is killed by OOM killer
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-8723
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8723
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jeff Liu
> Fix For: 2.1.5
>
> Attachments: cassandra.yaml
>
>
> Issue:
> We have an on-going issue with cassandra nodes running with continuously
> increasing memory until killed by OOM.
> {noformat}
> Jan 29 10:15:41 cass-chisel19 kernel: [24533109.783481] Out of memory: Kill
> process 13919 (java) score 911 or sacrifice child
> Jan 29 10:15:41 cass-chisel19 kernel: [24533109.783557] Killed process 13919
> (java) total-vm:18366340kB, anon-rss:6461472kB, file-rss:6684kB
> {noformat}
> System Profile:
> cassandra version 2.1.2
> system: aws c1.xlarge instance with 8 cores, 7.1G memory.
> cassandra jvm:
> -Xms1792M -Xmx1792M -Xmn400M -Xss256k
> {noformat}
> java -ea -javaagent:/usr/share/cassandra/lib/jamm-0.2.8.jar
> -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms1792M -Xmx1792M
> -Xmn400M -XX:+HeapDumpOnOutOfMemoryError -Xss256k -XX:StringTableSize=1000003
> -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled
> -XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=1
> -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly
> -XX:+UseTLAB -XX:+CMSClassUnloadingEnabled -XX:+UseCondCardMark
> -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintHeapAtGC
> -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime
> -XX:+PrintPromotionFailure -Xloggc:/var/log/cassandra/gc-1421511249.log
> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=48M
> -Djava.net.preferIPv4Stack=true -Dcom.sun.management.jmxremote.port=7199
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.authenticate=false
> -javaagent:/usr/share/java/graphite-reporter-agent-1.0-SNAPSHOT.jar=graphiteServer=metrics-a.hq.nest.com;graphitePort=2003;graphitePollInt=60
> -Dlogback.configurationFile=logback.xml
> -Dcassandra.logdir=/var/log/cassandra -Dcassandra.storagedir=
> -Dcassandra-pidfile=/var/run/cassandra/cassandra.pid -cp
> /etc/cassandra:/usr/share/cassandra/lib/airline-0.6.jar:/usr/share/cassandra/lib/antlr-runtime-3.5.2.jar:/usr/share/cassandra/lib/commons-cli-1.1.jar:/usr/share/cassandra/lib/commons-codec-1.2.jar:/usr/share/cassandra/lib/commons-lang3-3.1.jar:/usr/share/cassandra/lib/commons-math3-3.2.jar:/usr/share/cassandra/lib/compress-lzf-0.8.4.jar:/usr/share/cassandra/lib/concurrentlinkedhashmap-lru-1.4.jar:/usr/share/cassandra/lib/disruptor-3.0.1.jar:/usr/share/cassandra/lib/guava-16.0.jar:/usr/share/cassandra/lib/high-scale-lib-1.0.6.jar:/usr/share/cassandra/lib/jackson-core-asl-1.9.2.jar:/usr/share/cassandra/lib/jackson-mapper-asl-1.9.2.jar:/usr/share/cassandra/lib/jamm-0.2.8.jar:/usr/share/cassandra/lib/javax.inject.jar:/usr/share/cassandra/lib/jbcrypt-0.3m.jar:/usr/share/cassandra/lib/jline-1.0.jar:/usr/share/cassandra/lib/jna-4.0.0.jar:/usr/share/cassandra/lib/json-simple-1.1.jar:/usr/share/cassandra/lib/libthrift-0.9.1.jar:/usr/share/cassandra/lib/logback-classic-1.1.2.jar:/usr/share/cassandra/lib/logback-core-1.1.2.jar:/usr/share/cassandra/lib/lz4-1.2.0.jar:/usr/share/cassandra/lib/metrics-core-2.2.0.jar:/usr/share/cassandra/lib/metrics-graphite-2.2.0.jar:/usr/share/cassandra/lib/mx4j-tools.jar:/usr/share/cassandra/lib/netty-all-4.0.23.Final.jar:/usr/share/cassandra/lib/reporter-config-2.1.0.jar:/usr/share/cassandra/lib/slf4j-api-1.7.2.jar:/usr/share/cassandra/lib/snakeyaml-1.11.jar:/usr/share/cassandra/lib/snappy-java-1.0.5.2.jar:/usr/share/cassandra/lib/stream-2.5.2.jar:/usr/share/cassandra/lib/stringtemplate-4.0.2.jar:/usr/share/cassandra/lib/super-csv-2.1.0.jar:/usr/share/cassandra/lib/thrift-server-0.3.7.jar:/usr/share/cassandra/apache-cassandra-2.1.2.jar:/usr/share/cassandra/apache-cassandra-thrift-2.1.2.jar:/usr/share/cassandra/apache-cassandra.jar:/usr/share/cassandra/cassandra-driver-core-2.0.5.jar:/usr/share/cassandra/netty-3.9.0.Final.jar:/usr/share/cassandra/stress.jar:
> -XX:HeapDumpPath=/var/lib/cassandra/java_1421511248.hprof
> -XX:ErrorFile=/var/lib/cassandra/hs_err_1421511248.log
> org.apache.cassandra.service.CassandraDaemon
> {noformat}
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