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From Xiaoxiang Yu <>
Subject Re: metastore clean OutOfMemoryError
Date Fri, 22 Nov 2019 07:18:24 GMT
You should a log like hs_err_pid19438.log, could you please show the content to us?

Best wishes,
Xiaoxiang Yu 

在 2019/11/22 15:00,“MrWell”<> 写入:

    Hi, Kylin Team.
    When I execute "bin/ clean --delete true" , I get a "OutOfMemoryError" like
    java.lang.OutOfMemoryError: Java heap space
    Dumping heap to java_pid4839.hprof ...
    Heap dump file created [317991670&nbsp;bytes in 2.120 secs]
    # java.lang.OutOfMemoryError: Java heap space
    # -XX:OnOutOfMemoryError="kill -9 %p"
    #&nbsp; &nbsp;Executing /bin/sh -c "kill -9 4839"...
    bin/ line 109:&nbsp; 4839 Killed&nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ${KYLIN_HOME}/bin/ org.apache.kylin.tool.MetadataCleanupJob
    I have set '' file, like this
    export KYLIN_JVM_SETTINGS="-Xms16g -Xmx16g -XX:MaxPermSize=512m -XX:NewSize=3g -XX:MaxNewSize=3g
-XX:SurvivorRatio=4 -XX:+CMSClassUnloadingEnabled -XX:+CMSParallelRemarkEnabled -XX:+UseConcMarkSweepGC
-XX:+CMSIncrementalMode -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseCMSInitiatingOccupancyOnly
-XX:+DisableExplicitGC -XX:+HeapDumpOnOutOfMemoryError -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps
-Xloggc:$KYLIN_HOME/logs/kylin.gc.$$ -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=64M"
    Dose it means heap memory is still small?

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