balanceRSGroup should skip generating balance plan for disabled table and splitParent region

2020-08-20,20:47:54,702 WARN [RpcServer.default.RWQ.Fifo.read.handler=310,queue=6,port=22500] org.apache.hadoop.hbase.master.HMaster: Failed balance plan: hri=aa325467924edc865ab2ef6d82f9e2a7, source=tj1-hadoop-staging-st02.kscn,22600,1572403947348, destination=, just skip it
org.apache.hadoop.hbase.client.DoNotRetryRegionException: Unexpected state for rit=CLOSED, location=tj1-hadoop-staging-st02.kscn,22600,1572403947348, table=galaxysds:sds_staging_258z, region=aa325467924edc865ab2ef6d82f9e2a7
        at org.apache.hadoop.hbase.master.assignment.AssignmentManager.preTransitCheck(AssignmentManager.java:580)
        at org.apache.hadoop.hbase.master.assignment.AssignmentManager.createMoveRegionProcedure(AssignmentManager.java:635)
        at org.apache.hadoop.hbase.master.assignment.AssignmentManager.moveAsync(AssignmentManager.java:652)
        at org.apache.hadoop.hbase.master.HMaster.executeRegionPlansWithThrottling(HMaster.java:1776)
        at org.apache.hadoop.hbase.rsgroup.RSGroupAdminServer.balanceRSGroup(RSGroupAdminServer.java:486)
        at org.apache.hadoop.hbase.rsgroup.RSGroupAdminEndpoint$RSGroupAdminServiceImpl.balanceRSGroup(RSGroupAdminEndpoint.java:293)
        at org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos$RSGroupAdminService.callMethod(RSGroupAdminProtos.java:13890)
        at org.apache.hadoop.hbase.master.MasterRpcServices.execMasterService(MasterRpcServices.java:908)
        at org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:135)
        at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:338)
        at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:318)