JAVA-JVM参数

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