Hi, everyone I set up kerberos for the hdfs cluster, but after I start name node, then the datanode, In the namenode log file, it display the following error:
2018-11-09 15:09:38,725 WARN org.apache.hadoop.security.UserGroupInformation: No groups available for user datanode 4870 2018-11-09 15:09:38,725 INFO org.apache.hadoop.ipc.Server: IPC Server handler 0 on 8020, call org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.versionRequest from 127.0.0.1:56409 Call#132 Retry#0: org.apache.hadoop.security.AccessControlException: Access denied for user datanode. Superuser privilege is required The kerberos auth for name node and data node are both ok, can anyone see the problem here, any hint will be very appreciated. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@hadoop.apache.org For additional commands, e-mail: user-h...@hadoop.apache.org
