doris版本2.1.5
fe节点gc回收时间过长问题，导致心跳异常，连接报错，catalog权限丢失
目前jvm配置：
jdk 1.8
JAVA_OPTS="-Xmx200g -Diavax.security.auth.useSubjectCredsOnly=false -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:MaxGCPauseMillis=500 -XX:ParallelGCThreads=30 -XX:G1HeapRegionSize=8m -XX:G1NewSizePercent=20 -XX:InitiatingHeapOccupancyPercent=65 -Xloggc:$LOG_DIR/fe.gc.log.$CUR_DATE -Dlog4j2.formatMsgNoLookups=true"
