Datanode denied communication with namenode because the host is not in the include-lis

[#1]

After having added the a new host in the cluster, I get this error:

How can I fix this?

2016-11-05 04:43:58,923 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Block pool BP-1118010305-10.10.10.9-1463739087854 (Datanode Uuid null) service to warehouse.swtched.com/182.18.170.55:8022 beginning handshake with NN
2016-11-05 04:43:59,188 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed for Block pool BP-1118010305-10.10.10.9-1463739087854 (Datanode Uuid null) service to warehouse.swtched.com/182.18.170.55:8022 Datanode denied communication with namenode because the host is not in the include-list: DatanodeRegistration(35.162.23.31, datanodeUuid=f7b0dcd2-c987-4710-a74d-5e5f57d1147b, infoPort=50075, infoSecurePort=0, ipcPort=50020, storageInfo=lv=-56;cid=cluster52;nsid=1790842125;c=0)
	at org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.registerDatanode(DatanodeManager.java:934)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.registerDatanode(FSNamesystem.java:5079)
	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.registerDatanode(NameNodeRpcServer.java:1156)
	at org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.registerDatanode(DatanodeProtocolServerSideTranslatorPB.java:96)
	at org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:29184)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080)


2016-11-05 04:44:02,876 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: RECEIVED SIGNAL 15: SIGTERM
2016-11-05 04:44:02,878 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG: 

[#2 · Accepted solution]

@Simran Kaur

Please try hadoop dfsadmin -refreshNodes but I have seen another question from you I believe in which you are asking if you can add a node in a different data center. If this is the same cluster then this is not supported and I highly recommend that you don't spend too much time on it trying to make it work.