hi Huangpeng, I guess your JVM heap is small or your Kylin metadata is big. You can try to increase the java heap in "bin/setenv.sh"
Best regards, Shaofeng Shi 史少锋 Apache Kylin PMC Email: [email protected] Apache Kylin FAQ: https://kylin.apache.org/docs/gettingstarted/faq.html Join Kylin user mail group: [email protected] Join Kylin dev mail group: [email protected] MrWell <[email protected]> 于2019年11月22日周五 下午3:01写道： > Hi, Kylin Team. > > When I execute "bin/metastore.sh clean --delete true" , I get a > "OutOfMemoryError" like this > > > java.lang.OutOfMemoryError: Java heap space > Dumping heap to java_pid4839.hprof ... > Heap dump file created [317991670 bytes in 2.120 secs] > # > # java.lang.OutOfMemoryError: Java heap space > # -XX:OnOutOfMemoryError="kill -9 %p" > # Executing /bin/sh -c "kill -9 4839"... > bin/metastore.sh: line 109: 4839 Killed > ${KYLIN_HOME}/bin/kylin.sh org.apache.kylin.tool.MetadataCleanupJob "${@:2}" > > > I have set 'setenv.sh' file, like this > > export KYLIN_JVM_SETTINGS="-Xms16g -Xmx16g -XX:MaxPermSize=512m > -XX:NewSize=3g -XX:MaxNewSize=3g -XX:SurvivorRatio=4 > -XX:+CMSClassUnloadingEnabled -XX:+CMSParallelRemarkEnabled > -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode > -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseCMSInitiatingOccupancyOnly > -XX:+DisableExplicitGC -XX:+HeapDumpOnOutOfMemoryError -verbose:gc > -XX:+PrintGCDetails -XX:+PrintGCDateStamps > -Xloggc:$KYLIN_HOME/logs/kylin.gc.$$ -XX:+UseGCLogFileRotation > -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=64M" > > Dose it means heap memory is still small? >
