Running #> cat /proc/$(cat /var/run/cassandra.pid)/limits
as root or your cassandra user will tell you what limits it's actually running with. On Sun, May 4, 2014 at 10:12 PM, Yatong Zhang <bluefl...@gmail.com> wrote: > I am running 'repair' when the error occurred. And just a few days before > I changed the compaction strategy to 'leveled'. don know if this helps > > > On Mon, May 5, 2014 at 1:10 PM, Yatong Zhang <bluefl...@gmail.com> wrote: > >> Cassandra is running as root >> >> [root@storage5 ~]# ps aux | grep java >>> root 1893 42.0 24.0 7630664 3904000 ? Sl 10:43 60:01 java >>> -ea -javaagent:/mydb/cassandra/bin/../lib/jamm-0.2.5.jar >>> -XX:+CMSClassUnloadingEnabled -XX:+UseThreadPriorities >>> -XX:ThreadPriorityPolicy=42 -Xms3959M -Xmx3959M -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:+UseCondCardMark -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/cassandra.pid >>> -cp >>> /mydb/cassandra/bin/../conf:/mydb/cassandra/bin/../build/classes/main:/mydb/cassandra/bin/../build/classes/thrift:/mydb/cassandra/bin/../lib/antlr-3.2.jar:/mydb/cassandra/bin/../lib/apache-cassandra-2.0.7.jar:/mydb/cassandra/bin/../lib/apache-cassandra-clientutil-2.0.7.jar:/mydb/cassandra/bin/../lib/apache-cassandra-thrift-2.0.7.jar:/mydb/cassandra/bin/../lib/commons-cli-1.1.jar:/mydb/cassandra/bin/../lib/commons-codec-1.2.jar:/mydb/cassandra/bin/../lib/commons-lang3-3.1.jar:/mydb/cassandra/bin/../lib/compress-lzf-0.8.4.jar:/mydb/cassandra/bin/../lib/concurrentlinkedhashmap-lru-1.3.jar:/mydb/cassandra/bin/../lib/disruptor-3.0.1.jar:/mydb/cassandra/bin/../lib/guava-15.0.jar:/mydb/cassandra/bin/../lib/high-scale-lib-1.1.2.jar:/mydb/cassandra/bin/../lib/jackson-core-asl-1.9.2.jar:/mydb/cassandra/bin/../lib/jackson-mapper-asl-1.9.2.jar:/mydb/cassandra/bin/../lib/jamm-0.2.5.jar:/mydb/cassandra/bin/../lib/jbcrypt-0.3m.jar:/mydb/cassandra/bin/../lib/jline-1.0.jar:/mydb/cassandra/bin/../lib/json-simple-1.1.jar:/mydb/cassandra/bin/../lib/libthrift-0.9.1.jar:/mydb/cassandra/bin/../lib/log4j-1.2.16.jar:/mydb/cassandra/bin/../lib/lz4-1.2.0.jar:/mydb/cassandra/bin/../lib/metrics-core-2.2.0.jar:/mydb/cassandra/bin/../lib/netty-3.6.6.Final.jar:/mydb/cassandra/bin/../lib/reporter-config-2.1.0.jar:/mydb/cassandra/bin/../lib/servlet-api-2.5-20081211.jar:/mydb/cassandra/bin/../lib/slf4j-api-1.7.2.jar:/mydb/cassandra/bin/../lib/slf4j-log4j12-1.7.2.jar:/mydb/cassandra/bin/../lib/snakeyaml-1.11.jar:/mydb/cassandra/bin/../lib/snappy-java-1.0.5.jar:/mydb/cassandra/bin/../lib/snaptree-0.1.jar:/mydb/cassandra/bin/../lib/super-csv-2.1.0.jar:/mydb/cassandra/bin/../lib/thrift-server-0.3.3.jar >>> org.apache.cassandra.service.CassandraDaemon >>> >> >> >> >> On Mon, May 5, 2014 at 1:02 PM, Philip Persad <philip.per...@gmail.com>wrote: >> >>> Have you tried running "ulimit -a" as the Cassandra user instead of as >>> root? It is possible that your configured a high file limit for root but >>> not for the user running the Cassandra process. >>> >>> >>> On Sun, May 4, 2014 at 6:07 PM, Yatong Zhang <bluefl...@gmail.com>wrote: >>> >>>> [root@storage5 ~]# lsof -n | grep java | wc -l >>>>> 5103 >>>>> [root@storage5 ~]# lsof | wc -l >>>>> 6567 >>>> >>>> >>>> It's mentioned in previous mail:) >>>> >>>> >>>> On Mon, May 5, 2014 at 9:03 AM, nash <nas...@gmail.com> wrote: >>>> >>>>> The lsof command or /proc can tell you how many open files it has. How >>>>> many is it? >>>>> >>>>> --nash >>>>> >>>> >>>> >>> >> >
