Do you config hostname right in all node?
2008/9/26 Jeremy Chow [EMAIL PROTECTED]
Hi list,
I've created my hadoop cluster following the tutorial on
http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster)http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Multi-Node_Cluster%29
.
but failed. when i use bin/hadoop dfsadmin -report
it shows that there is only one datanode on,
$ bin/hadoop dfsadmin -report
Safe mode is ON
Total raw bytes: 20317106176 (18.92 GB)
Remaining raw bytes: 12607342427 (11.74 GB)
Used raw bytes: 834834432 (796.16 MB)
% used: 4.11%
Total effective bytes: 0 (0 KB)
Effective replication multiplier: Infinity
-
Datanodes available: 1
Name: 192.168.3.8:50010
State : In Service
Total raw bytes: 20317106176 (18.92 GB)
Remaining raw bytes: 12607342427(11.74 GB)
Used raw bytes: 834834432 (796.16 MB)
% used: 4.11%
Last contact: Fri Sep 26 15:46:19 CST 2008
and then I check the logs of datanodes which expect to run on other hosts,
I
found that
2008-09-26 15:47:54,744 INFO org.apache.hadoop.dfs.DataNode: STARTUP_MSG:
/
STARTUP_MSG: Starting DataNode
STARTUP_MSG: host = localhost.jobui.com/127.0.0.1
STARTUP_MSG: args = []
STARTUP_MSG: version = 0.18.1
STARTUP_MSG: build =
http://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r
694836;
compiled by 'hadoopqa' on Fri Sep 12 23:29:35 UTC 2008
/
2008-09-26 15:48:15,896 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: /192.168.3.8:54310. Already tried 0 time(s).
2008-09-26 15:48:36,898 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: /192.168.3.8:54310. Already tried 1 time(s).
2008-09-26 15:48:57,900 INFO org.apache.hadoop.ipc.Client: Retrying connect
to server: /192.168.3.8:54310. Already tried 2 time(s).
...
I take 192.168.3.8 as namenode, and 192.168.3.7, 192.168.3.8, 192.168.3.9as
datanodes.
But obviously remote datanodes cannot start sucessfully.
when I use jps on 192.168.3.7, it seems work fine.
$ jps
5131 Jps
4561 DataNode
but the namenode cannot find it.
can anyone give me a solution?
thanks a lot.
Jeremy
--
My research interests are distributed systems, parallel computing and
bytecode based virtual machine.
http://coderplay.javaeye.com
--
Sorry for my English!! 明
Please help me correct my English expression and error in syntax
