Following is the result of telnet Trying 192.168.23.206... Connected to hadoop-master. Escape character is '^]'.
On Wed, Jun 29, 2016 at 3:57 AM, Aneela Saleem <ane...@platalytics.com> wrote: > Thanks Sreebalineni for the response. > > This is the result of the *netstat -a | grep 8020* command > > tcp 0 0 hadoop-master:8020 *:* LISTEN > tcp 0 0 hadoop-master:33356 hadoop-master:8020 > ESTABLISHED > tcp 0 0 hadoop-master:8020 hadoop-master:33356 > ESTABLISHED > tcp 0 0 hadoop-master:55135 hadoop-master:8020 > TIME_WAIT > > And this is my */etc/hosts* file > > #127.0.0.1 localhost > #127.0.1.1 vm6-VirtualBox > 192.168.23.206 hadoop-master platalytics.com vm6-VirtualBox > 192.168.23.207 hadoop-slave > # The following lines are desirable for IPv6 capable hosts > ::1 ip6-localhost ip6-loopback > fe00::0 ip6-localnet > ff00::0 ip6-mcastprefix > ff02::1 ip6-allnodes > ff02::2 ip6-allrouters > > > Can you please tell me what's wrong with above configuration and how can i > check whether it is firewall issue? > > Thanks > > On Wed, Jun 29, 2016 at 12:11 AM, sreebalineni . <sreebalin...@gmail.com> > wrote: > >> Are you able to telnet ping. Check the firewalls as well >> On Jun 29, 2016 12:39 AM, "Aneela Saleem" <ane...@platalytics.com> wrote: >> >>> Hi all, >>> >>> I have setup two nodes cluster with security enabled. I have everything >>> running successful like namenode, datanode, resourcemanager, nodemanager, >>> jobhistoryserver etc. But datanode is unable to connect to namenode, as i >>> can see only one node on the web UI. checking logs of datanode gives >>> following warning: >>> >>> *WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Problem >>> connecting to server: hadoop-master/192.168.23.206:8020 >>> <http://192.168.23.206:8020>* >>> >>> Rest of the things look fine. Please help me in this regard, what could >>> be the issue? >>> >> >
