Hi Nagarjuna,
What's is in your /etc/hosts file? I think the line in logs where it says "DataNodeRegistration(0.0.0.0 [..]", should be the hostname or IP of the datanode (124.123.215.187 since you said it's a pseudo-distributed setup) and not 0.0.0.0. By the way are you using the dfs.hosts parameter for specifying the datanodes that can connect to the namenode? Vijay From: nagarjuna kanamarlapudi [mailto:nagarjuna.kanamarlap...@gmail.com] Sent: 20 February 2013 15:52 To: user@hadoop.apache.org Subject: Re: In Compatible clusterIDs Hi Jean Marc, Yes, this is the cluster I am trying to create and then will scale up. As per your suggestion I deleted the folder /Users/nagarjunak/Documents/hadoop-install/hadoop-2.0.3-alpha/tmp_20 an formatted the cluster. Now I get the following error. 2013-02-20 21:17:25,668 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed for block pool Block pool BP-811644675-124.123.215.187-1361375214801 (storage id DS-1515823288-124.123.215.187-50010-1361375245435) service to nagarjuna/124.123.215.187:9000 org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.protocol .DisallowedDatanodeException): Datanode denied communication with namenode: DatanodeRegistration(0.0.0.0, storageID=DS-1515823288-124.123.215.187-50010-1361375245435, infoPort=50075, ipcPort=50020, storageInfo=lv=-40;cid=CID-723b02a7-3441-41b5-8045-2a45a9cf96b0;nsid=1805451 571;c=0) at org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.registerDatano de(DatanodeManager.java:629) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.registerDatanode(FSNames ystem.java:3459) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.registerDatanode(Na meNodeRpcServer.java:881) at org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.reg isterDatanode(DatanodeProtocolServerSideTranslatorPB.java:90) at org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtoco lService$2.callBlockingMethod(DatanodeProtocolProtos.java:18295) at org.apache.hadoop.ipc.Protob On Wed, Feb 20, 2013 at 9:10 PM, Jean-Marc Spaggiari <jean-m...@spaggiari.org> wrote: Hi Nagarjuna, Is it a test cluster? Do you have another cluster running close-by? Also, is it your first try? It seems there is some previous data in the dfs directory which is not in sync with the last installation. Maybe you can remove the content of /Users/nagarjunak/Documents/hadoop-install/hadoop-2.0.3-alpha/tmp_20 if it's not usefull for you, reformat your node and restart it? JM 2013/2/20, nagarjuna kanamarlapudi <nagarjuna.kanamarlap...@gmail.com>: > Hi, > > I am trying to setup single node cluster of hadop 2.0.* > > When trying to start datanode I got the following error. Could anyone help > me out > > Block pool BP-1894309265-124.123.215.187-1361374377471 (storage id > DS-1175433225-124.123.215.187-50010-1361374235895) service to nagarjuna/ > 124.123.215.187:9000 > java.io.IOException: Incompatible clusterIDs in > /Users/nagarjunak/Documents/hadoop-install/hadoop-2.0.3-alpha/tmp_20/dfs/dat a: > namenode clusterID = CID-800b7eb1-7a83-4649-86b7-617913e82ad8; datanode > clusterID = CID-1740b490-8413-451c-926f-2f0676b217ec > at > org.apache.hadoop.hdfs.server.datanode.DataStorage.doTransition(DataStorage. java:391) > at > org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(Dat aStorage.java:191) > at > org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(Dat aStorage.java:219) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.initStorage(DataNode.java:85 0) > at > org.apache.hadoop.hdfs.server.datanode.DataNode.initBlockPool(DataNode.java: 821) > at > org.apache.hadoop.hdfs.server.datanode.BPOfferService.verifyAndSetNamespaceI nfo(BPOfferService.java:280) > at > org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshak e(BPServiceActor.java:222) > at > org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.jav a:664) > at java.lang.Thread.run(Thread.java:680) > 2013-02-20 21:03:39,856 WARN > org.apache.hadoop.hdfs.server.datanode.DataNode: Ending block pool service > for: Block pool BP-1894309265-124.123.215.187-1361374377471 (storage id > DS-1175433225-124.123.215.187-50010-1361374235895) service to nagarjuna/ > 124.123.215.187:9000 > 2013-02-20 21:03:39,958 INFO > org.apache.hadoop.hdfs.server.datanode.DataNode: Removed Block pool > BP-1894309265-124.123.215.187-1361374377471 (storage id > DS-1175433225-124.123.215.187-50010-1361374235895) > 2013-02-20 21:03:41,959 WARN > org.apache.hadoop.hdfs.server.datanode.DataNode: Exiting Datanode > 2013-02-20 21:03:41,961 INFO org.apache.hadoop.util.ExitUtil: Exiting with > status 0 > 2013-02-20 21:03:41,963 INFO > org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG: > /************************************************************ > SHUTDOWN_MSG: Shutting down DataNode at nagarjuna/124.123.215.187 > ************************************************************/ >
