Your hdfs-site.xml on the NN defines an "includes" file, but the includes file does not list this connecting DN's proper hostname/IP, causing the NN to reject it when it tries to ask itself to be registered upon startup.
On Thu, Jan 9, 2014 at 4:05 PM, Pedro Sa da Costa <psdc1...@gmail.com> wrote: > > When I try to launch the namenode and the datanode in MRv2, the datanode > can't connect to the namenode, giving me the error below. I also put the > core-site file that I use below. > > The Firewall in the hosts is disabled. I don't have excluded nodes defined. > Why the datanodes can't connect to the namenode? Any help to solve this > problem? > > > org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.protocol.DisallowedDatanodeException): > Datanode denied communication with namenode: DatanodeRegistrati > on(0.0.0.0, storageID=DS-1449645935-172.16.1.10-50010-1389224474955, > infoPort=50075, ipcPort=50020, > storageInfo=lv=-40;cid=CID-9a8571a3-17ae-49b2-b957-b009e88b9f9a;nsid=9 > 34416283;c=0) > at > org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.registerDatanode(DatanodeManager.java:631) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.registerDatanode(FSNamesystem.java:3398) > at > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.registerDatanode(NameNodeRpcServer.java:881) > at > org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.registerDatanode(DatanodeProtocolServerSideTranslatorPB.java:90) > at > org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:18295) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:454) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1014) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1741) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1737) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:416) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1478) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1735) > > at org.apache.hadoop.ipc.Client.call(Client.java:1235) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202) > at com.sun.proxy.$Proxy9.registerDatanode(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:622) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83) > at com.sun.proxy.$Proxy9.registerDatanode(Unknown Source) > at > org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB.registerDatanode(DatanodeProtocolClientSideTranslatorPB.java:146) > at > org.apache.hadoop.hdfs.server.datanode.BPServiceActor.register(BPServiceActor.java:623) > at > org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshake(BPServiceActor.java:225) > at > org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:664) > at java.lang.Thread.run(Thread.java:701) > > I set the core-site.xml > > <configuration> > <property> <name>fs.default.name</name> > <value>hdfs://10.103.0.17:9000</value> </property> > <property> <name>hadoop.tmp.dir</name> <value>/tmp/hadoop-temp</value> > </property> > > <property><name>hadoop.proxyuser.root.hosts</name><value>*</value></property> > > <property><name>hadoop.proxyuser.root.groups</name><value>*</value></property> > </configuration> > > -- > Best regards, -- Harsh J
