Jstorm

 在jdk1.8 的环境下，JStorm 启动nimbus时，会报如下异常：

MaxTenuringThreshold of 20 is invalid; must be between 0 and 15
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

解决方法：
jstorm-core-2.1.0.jar
　　default.yaml
修改如下配置

nimbus.childopts: " -Xms4g -Xmx4g -Xmn1536m -XX:PermSize=256m  -XX:SurvivorRatio=4 -XX:MaxTenuringThreshold=15 -XX:+UseConcMarkSweepGC  -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=70 -XX:CMSFullGCsBeforeCompaction=5 -XX:+HeapDumpOnOutOfMemoryError  -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=100M -XX:+UseCMSCompactAtFullCollection -XX:CMSMaxAbortablePrecleanTime=5000 "