Check the password less SSH is working or not Regards, Jagaran
________________________________ From: MilleBii <mille...@gmail.com> To: common-user@hadoop.apache.org Sent: Wed, 1 June, 2011 12:28:54 PM Subject: Adding first datanode isn't working Newbie on hadoop clusters. I have setup my two nodes conf as described by M. G. Noll http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/ The data node has datanode & tasktracker running (jps command shows them), which means start-dfs.sh and start-mapred.sh worked fine. I can also shut them down gracefully. However in the WEB UI I only see one node for the DFS Live Node : 1 Dead Node : 0 Same thing on the MapRed WEB interface. Datanode logs on slave are just empty. Did check the network settings both nodes have access to each other on relevant ports. Did make sure namespaceID are the same ( https://issues.apache.org/jira/browse/HDFS-107) I did try to put data in the DFS worked but no data seemed to arrive in the slave datanode. Also tried a small MapRed only master node has been actually working, but that could be because there is only data in the master. Right ? -- -MilleBii-
