CDH yarn 重启后RM两个备

yarn rmadmin -transitionToActive --forcemanual rm1

cd /opt/cloudera/parcels/CDH/lib/zookeeper/bin/
./zkCli.sh -server IT-CDH-Node01:2181

查看是否存在残留的ActiveBreadCrumb节点
ls /yarn-leader-election/yarnRM
#若输出只有[ActiveBreadCrumb]（正常应有[ActiveBreadCrumb, ActiveStandbyElectorLock]）
deleteall /yarn-leader-election/yarnRM/ActiveBreadCrumb
deleteall /rmstore/ZKRMStateRoot/RMAppRoot

处理ACL权限问题（若删除时报权限错误）：
getAcl /rmstore/ZKRMStateRoot/RMAppRoot # 查看ACL
setAcl /rmstore/ZKRMStateRoot/RMAppRoot world:anyone:rwcda # 开放权限
deleteall /rmstore/ZKRMStateRoot/RMAppRoot # 再次删除