ข้อผิดพลาดในการเข้าถึง Hbase

เมื่อฉันพยายามให้สิทธิ์การเข้าถึงแก่ผู้ใช้ใน hbase ฉันได้รับข้อผิดพลาดต่อไปนี้:

 grant 'root', 'RWXCA'

   ERROR: org.apache.hadoop.hbase.coprocessor.CoprocessorException: java.net.ConnectException:    Connection refused
           at    com.xasecure.authorization.hbase.XaSecureAuthorizationCoprocessor.grant(XaSecureAuthorizationCoproces sor.java:1040)
           at   org.apache.hadoop.hbase.protobuf.generated.AccessControlProtos$AccessControlService$1.grant(AccessControlProtos.java:9933)
           at    org.apache.hadoop.hbase.protobuf.generated.AccessControlProtos$AccessControlService.callMethod(Access   ControlProtos.java:10097)
           at org.apache.hadoop.hbase.regionserver.HRegion.execService(HRegion.java:6725)
           at    org.apache.hadoop.hbase.regionserver.HRegionServer.execServiceOnRegion(HRegionServer.java:3415)
           at org.apache.hadoop.hbase.regionserver.HRegionServer.execService(HRegionServer.java:3397)
           at    org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29998)
           at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2078)
           at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
           at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:114)
           at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:94)
           at java.lang.Thread.run(Thread.java:745)

วิ่ง HDP2.2 sandbox

hbase.coprocessor.region.classes=com.xasecure.authorization.hbase.XaSecureAuthorizationCoprocessor

hbase.coprocessor.master.classes=com.xasecure.authorization.hbase.XaSecureAuthorizationCoprocessor

มีความคิดอะไรบ้าง? ไชโยโคลแมน