关于tomcat报OutOfMemoryError: Java heap space
假如是4核的,jdk 8以上,推荐一个配置
-server
-Xms8g
-Xmx8g
-XX:MetaspaceSize=512m 7的话用持久代配置
-XX:MaxMetaspaceSize=512m 7的话用持久代配置
-Xmn5m
-XX:+UseConcMarkSweepGC
-XX:+UseCMSCompactAtFullCollection
-XX:CMSMaxAbortablePrecleanTime=5000
-XX:+CMSClassUnloadingEnabled
-XX:+UseCMSInitiatingOccupancyOnly
-XX:CMSInitiatingOccupancyFraction=80
-XX:+HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath=/home/admin/java/java.hprof
-Xloggc:/home/admin/java/gc.log
-XX:+PrintGCDetails
-XX:+PrintGCDateStamps
-XX:MaxDirectMemorySize=2g
-XX:SurvivorRatio=10
-XX:+ExplicitGCInvokesConcurrent
-XX:ParallelGCThreads=4
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