Remove the entry from dfs.exclude if there is any On Aug 4, 2014 3:28 AM, "S.L" <simpleliving...@gmail.com> wrote:
> Hi All, > > I am trying to set up a Apache Hadoop 2.3.0 cluster , I have a master and > three slave nodes , the slave nodes are listed in the > $HADOOP_HOME/etc/hadoop/slaves file and I can telnet from the slaves to the > Master Name node on port 9000, however when I start the datanode on any of > the slaves I get the following exception . > > 2014-08-03 08:04:27,952 FATAL > org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed for > block pool Block pool BP-1086620743-170.75.152.162-1407064313305 (Datanode > Uuid null) service to server1.dealyaft.com/170.75.152.162:9000 > org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.protocol.DisallowedDatanodeException): > Datanode denied communication with namenode because hostname cannot be > resolved . > > The following are the contents of my core-site.xml. > > <configuration> > <property> > <name>fs.default.name</name> > <value>hdfs://server1.mydomain.com:9000</value> > </property> > </configuration> > > Also in my hdfs-site.xml I am not setting any value for dfs.hosts or > dfs.hosts.exclude properties. > > Thanks. >
