JAVA-JVM参数

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JAVA-JVM参数

一般java进程参数:

-XX:+UseParNewGC \-XX:+UseConcMarkSweepGC \-XX:CMSInitiatingOccupancyFraction=70 \-verbose:gc \-XX:+DisableExplicitGC \-XX:+PrintGCDetails \-XX:+PrintGCDateStamps \-XX:+PrintGCTimeStamps \-XX:+PrintTenuringDistribution \-Xloggc:$HADOOP_HOME/logs/gc_`date +'%Y%m%d%H%M'`.log \-XX:+UseGCLogFileRotation \-XX:NumberOfGCLogFiles=10 \-XX:GCLogFileSize=512M \-XX:+HeapDumpOnOutOfMemoryError \-XX:HeapDumpPath=$HADOOP_HOME/logs/ \-XX:ErrorFile=$HADOOP_HOME/logs/hs_err_pid%p.log \-XX:SurvivorRatio=8 \-XX:NewRatio=2