Can you check if the ports are opened by running telnet command. Run below command from source machine to destination machine and check if this help
$telnet <IP address> <port number> Ex: $telnet 192.168.1.60 9000 Let's Hadooping....! Bests Sidharth Mob: +91 8197555599 LinkedIn: www.linkedin.com/in/sidharthkumar2792 On 28-Apr-2017 10:32 AM, "Bhushan Pathak" <bhushan.patha...@gmail.com> wrote: > Hello All, > > 1. The slave & master can ping each other as well as use passwordless SSH > 2. The actual IP starts with 10.x.x.x, I have put in the config file as I > cannot share the actual IP > 3. The namenode is formatted. I executed the 'hdfs namenode -format' again > just to rule out the possibility > 4. I did not configure anything in the master file. I don;t think Hadoop > 2.7.3 has a master file to be configured > 5. The netstat command [sudo netstat -tulpn | grep '51150' ] does not > give any output. > > Even if I change the port number to a different one, say 52220, 50000, I > still get the same error. > > Thanks > Bhushan Pathak > > Thanks > Bhushan Pathak > > On Fri, Apr 28, 2017 at 7:52 AM, Lei Cao <charlie.c...@hotmail.com> wrote: > >> Hi Mr. Bhushan, >> >> Have you tried to format namenode? >> Here's the command: >> hdfs namenode -format >> >> I've encountered such problem as namenode cannot be started. This command >> line easily fixed my problem. >> >> Hope this can help you. >> >> Sincerely, >> Lei Cao >> >> >> On Apr 27, 2017, at 12:09, Brahma Reddy Battula < >> brahmareddy.batt...@huawei.com> wrote: >> >> *Please check “hostname –i” .* >> >> >> >> >> >> *1) **What’s configured in the “master” file.(you shared only slave >> file).?* >> >> >> >> *2) **Can you able to “ping master”?* >> >> >> >> *3) **Can you configure like this check once..?* >> >> * 1.1.1.1 master* >> >> >> >> >> >> Regards >> >> Brahma Reddy Battula >> >> >> >> *From:* Bhushan Pathak [mailto:bhushan.patha...@gmail.com >> <bhushan.patha...@gmail.com>] >> *Sent:* 27 April 2017 18:16 >> *To:* Brahma Reddy Battula >> *Cc:* user@hadoop.apache.org >> *Subject:* Re: Hadoop 2.7.3 cluster namenode not starting >> >> >> >> Some additional info - >> >> OS: CentOS 7 >> >> RAM: 8GB >> >> >> >> Thanks >> >> Bhushan Pathak >> >> >> Thanks >> >> Bhushan Pathak >> >> >> >> On Thu, Apr 27, 2017 at 3:34 PM, Bhushan Pathak < >> bhushan.patha...@gmail.com> wrote: >> >> Yes, I'm running the command on the master node. >> >> >> >> Attached are the config files & the hosts file. I have updated the IP >> address only as per company policy, so that original IP addresses are not >> shared. >> >> >> >> The same config files & hosts file exist on all 3 nodes. >> >> >> >> Thanks >> >> Bhushan Pathak >> >> >> Thanks >> >> Bhushan Pathak >> >> >> >> On Thu, Apr 27, 2017 at 3:02 PM, Brahma Reddy Battula < >> brahmareddy.batt...@huawei.com> wrote: >> >> Are you sure that you are starting in same machine (master)..? >> >> >> >> Please share “/etc/hosts” and configuration files.. >> >> >> >> >> >> Regards >> >> Brahma Reddy Battula >> >> >> >> *From:* Bhushan Pathak [mailto:bhushan.patha...@gmail.com] >> *Sent:* 27 April 2017 17:18 >> *To:* user@hadoop.apache.org >> *Subject:* Fwd: Hadoop 2.7.3 cluster namenode not starting >> >> >> >> Hello >> >> >> >> I have a 3-node cluster where I have installed hadoop 2.7.3. I have >> updated core-site.xml, mapred-site.xml, slaves, hdfs-site.xml, >> yarn-site.xml, hadoop-env.sh files with basic settings on all 3 nodes. >> >> >> >> When I execute start-dfs.sh on the master node, the namenode does not >> start. The logs contain the following error - >> >> 2017-04-27 14:17:57,166 ERROR >> org.apache.hadoop.hdfs.server.namenode.NameNode: >> Failed to start namenode. >> >> java.net.BindException: Problem binding to [master:51150] >> java.net.BindException: Cannot assign requested address; For more details >> see: http://wiki.apache.org/hadoop/BindException >> >> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native >> Method) >> >> at sun.reflect.NativeConstructorAccessorImpl.newInstance(Native >> ConstructorAccessorImpl.java:62) >> >> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De >> legatingConstructorAccessorImpl.java:45) >> >> at java.lang.reflect.Constructor.newInstance(Constructor.java:4 >> 23) >> >> at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils. >> java:792) >> >> at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java: >> 721) >> >> at org.apache.hadoop.ipc.Server.bind(Server.java:425) >> >> at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:574) >> >> at org.apache.hadoop.ipc.Server.<init>(Server.java:2215) >> >> at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:951) >> >> at org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>( >> ProtobufRpcEngine.java:534) >> >> at org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRp >> cEngine.java:509) >> >> at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:796) >> >> at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.<in >> it>(NameNodeRpcServer.java:345) >> >> at org.apache.hadoop.hdfs.server.namenode.NameNode.createRpcSer >> ver(NameNode.java:674) >> >> at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(N >> ameNode.java:647) >> >> at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameN >> ode.java:812) >> >> at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameN >> ode.java:796) >> >> at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNo >> de(NameNode.java:1493) >> >> at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNod >> e.java:1559) >> >> Caused by: java.net.BindException: Cannot assign requested address >> >> at sun.nio.ch.Net.bind0(Native Method) >> >> at sun.nio.ch.Net.bind(Net.java:433) >> >> at sun.nio.ch.Net.bind(Net.java:425) >> >> at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelI >> mpl.java:223) >> >> at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor. >> java:74) >> >> at org.apache.hadoop.ipc.Server.bind(Server.java:408) >> >> ... 13 more >> >> 2017-04-27 14:17:57,171 INFO org.apache.hadoop.util.ExitUtil: Exiting >> with status 1 >> >> 2017-04-27 14:17:57,176 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: >> SHUTDOWN_MSG: >> >> /************************************************************ >> >> SHUTDOWN_MSG: Shutting down NameNode at master/1.1.1.1 >> >> ************************************************************/ >> >> >> >> >> >> >> >> I have changed the port number multiple times, every time I get the same >> error. How do I get past this? >> >> >> >> >> >> >> >> Thanks >> >> Bhushan Pathak >> >> >> >> >> >> >> >> >
