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From: Harsh J <harsh@cloudera.com>
Date: Thu, 9 Jan 2014 16:56:14 +0530
Message-ID: 
 <CAOcnVr1xZ+VSZQgigVbwgPS-1NAw=CxfNuxZKn125bGBLUgCSg@mail.gmail.com>
Subject: Re: org.apache.hadoop.hdfs.server.protocol.DisallowedDatanodeExceptio
To: "<user@hadoop.apache.org>" <user@hadoop.apache.org>
Content-Type: text/plain; charset=ISO-8859-1

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 <psdc1978@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