Can you double check that your data node doesn't have the same /etc/hosts issue mentioned above in the thread? (i.e. machine name resolves to 127.0.0.1) Dali On Mon, Aug 17, 2009 at 1:33 PM, CubicDesign <[email protected]> wrote:
> Thank you all for your answers. > > My problem with Hadoop on Ubuntu is that I cannot make the DataNode server > to work properly (at least this is where I think the error is). I get an > "File jobtracker.info could only be replicated to 0 nodes instead of 1" > error message. All other servers are running fine. I am running Hadoop in a > single (test) machine. > > > The results for jps and netstats are: > > > jps > 4465 NameNode > 4553 DataNode > 5105 Jps > 4717 JobTracker > 4649 SecondaryNameNode > 4807 TaskTracker > > > sudo netstat -plten | grep java > tcp 0 0 0.0.0.0:50722 0.0.0.0:* LISTEN > 1000 13858 4553/java tcp 0 0 > 0.0.0.0:50020 0.0.0.0:* LISTEN 1000 > 15130 4553/java tcp 0 0 127.0.0.1:54310 > 0.0.0.0:* LISTEN 1000 13564 4465/java > tcp 0 0 127.0.0.1:54311 0.0.0.0:* > LISTEN 1000 14571 4717/java tcp 0 0 > 0.0.0.0:59080 0.0.0.0:* LISTEN 1000 > 14547 4717/java tcp 0 0 0.0.0.0:50090 > 0.0.0.0:* LISTEN 1000 14943 4649/java > tcp 0 0 127.0.0.1:40555 0.0.0.0:* > LISTEN 1000 15057 4807/java tcp 0 0 > 0.0.0.0:50060 0.0.0.0:* LISTEN 1000 > 15031 4807/java tcp 0 0 0.0.0.0:47661 > 0.0.0.0:* LISTEN 1000 14247 4649/java > tcp 0 0 0.0.0.0:50030 0.0.0.0:* > LISTEN 1000 14941 4717/java tcp 0 0 > 0.0.0.0:57839 0.0.0.0:* LISTEN 1000 > 13514 4465/java tcp 0 0 0.0.0.0:50070 > 0.0.0.0:* LISTEN 1000 14533 4465/java > tcp 0 0 0.0.0.0:50010 0.0.0.0:* > LISTEN 1000 14765 4553/java tcp 0 0 > 0.0.0.0:50075 0.0.0.0:* LISTEN 1000 > 14946 4553/java > -- Dali Kilani =========== Phone : (650) 492-5921 (Google Voice) E-Fax : (775) 552-2982
