Hi,
When I am running the following command in Mandriva Linux
hadoop namenode -format
I am getting the following error:
10/10/09 22:32:07 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = java.net.UnknownHostException:
cs-sy-249.cse.iitkgp.ernet.in: cs-sy-249.cse.iitkgp.ernet.in
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 0.20.2+320
STARTUP_MSG: build = -r 9b72d268a0b590b4fd7d13aca17c1c453f8bc957;
compiled by 'root' on Mon Jun 28 19:13:09 EDT 2010
************************************************************/
Re-format filesystem in /users/user/hadoop-datastore/hadoop-user/dfs/name ?
(Y or N) Y
10/10/09 22:32:11 INFO namenode.FSNamesystem: fsOwner=user,user
10/10/09 22:32:11 INFO namenode.FSNamesystem: supergroup=supergroup
10/10/09 22:32:11 INFO namenode.FSNamesystem: isPermissionEnabled=true
10/10/09 22:32:12 INFO metrics.MetricsUtil: Unable to obtain hostName
java.net.UnknownHostException: cs-sy-249.cse.iitkgp.ernet.in:
cs-sy-249.cse.iitkgp.ernet.in
at java.net.InetAddress.getLocalHost(InetAddress.java:1353)
at
org.apache.hadoop.metrics.MetricsUtil.getHostName(MetricsUtil.java:91)
at
org.apache.hadoop.metrics.MetricsUtil.createRecord(MetricsUtil.java:80)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.initialize(FSDirectory.java:78)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.<init>(FSDirectory.java:73)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:383)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:904)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:998)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1015)
10/10/09 22:32:12 INFO common.Storage: Image file of size 94 saved in 0
seconds.
10/10/09 22:32:12 INFO common.Storage: Storage directory
/users/user/hadoop-datastore/hadoop-user/dfs/name has been successfully
formatted.
10/10/09 22:32:12 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at java.net.UnknownHostException:
cs-sy-249.cse.iitkgp.ernet.in: cs-sy-249.cse.iitkgp.ernet.in
************************************************************/
Please help me in solving this problem.
Thanks
Regards
Siddharth
