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Posted to common-user@hadoop.apache.org by snehal nagmote <na...@gmail.com> on 2009/03/23 19:16:32 UTC

hadoop configuration problem hostname-ip address

Hi,
I am using Hadoop version 0.19. I set up a hadoop cluster  for testing
purpose with 1 master
and one slave. I set up keyless ssh between the master node and all the
slave nodes as
well as modified the /etc/hosts/ on all nodes so hostname lookup works

 I am  using ip addresses for the namenode and datanode  rather tahn
hostname as with hostname ,
datanode was not coming up

But when i try to execute any job or program, it gives me following
exception

following exceptions:
FAILED
Error initializing
*java*.*lang*.*IllegalArgumentException*: *Wrong* *FS*:
hdfs://172.16.6.102:21011/user/root/test
expected: hdfs://namnodemc:21011

Can you please help me out , from where it is taking hostname



Regards,
Snehal Nagmote
IIIT-H

Re: hadoop configuration problem hostname-ip address

Posted by Raghu Angadi <ra...@yahoo-inc.com>.
you need https://issues.apache.org/jira/browse/HADOOP-5191

I don't why there is no response to the simple patch I attached.

alternately you could use hostname that it expects instead of ip address.

Raghu.
snehal nagmote wrote:
> Hi,
> I am using Hadoop version 0.19. I set up a hadoop cluster  for testing
> purpose with 1 master
> and one slave. I set up keyless ssh between the master node and all the
> slave nodes as
> well as modified the /etc/hosts/ on all nodes so hostname lookup works
> 
>  I am  using ip addresses for the namenode and datanode  rather tahn
> hostname as with hostname ,
> datanode was not coming up
> 
> But when i try to execute any job or program, it gives me following
> exception
> 
> following exceptions:
> FAILED
> Error initializing
> *java*.*lang*.*IllegalArgumentException*: *Wrong* *FS*:
> hdfs://172.16.6.102:21011/user/root/test
> expected: hdfs://namnodemc:21011
> 
> Can you please help me out , from where it is taking hostname
> 
> 
> 
> Regards,
> Snehal Nagmote
> IIIT-H
> 


Re: hadoop configuration problem hostname-ip address

Posted by Raghu Angadi <ra...@yahoo-inc.com>.
you need https://issues.apache.org/jira/browse/HADOOP-5191

I don't why there is no response to the simple patch I attached.

alternately you could use hostname that it expects instead of ip address.

Raghu.
snehal nagmote wrote:
> Hi,
> I am using Hadoop version 0.19. I set up a hadoop cluster  for testing
> purpose with 1 master
> and one slave. I set up keyless ssh between the master node and all the
> slave nodes as
> well as modified the /etc/hosts/ on all nodes so hostname lookup works
> 
>  I am  using ip addresses for the namenode and datanode  rather tahn
> hostname as with hostname ,
> datanode was not coming up
> 
> But when i try to execute any job or program, it gives me following
> exception
> 
> following exceptions:
> FAILED
> Error initializing
> *java*.*lang*.*IllegalArgumentException*: *Wrong* *FS*:
> hdfs://172.16.6.102:21011/user/root/test
> expected: hdfs://namnodemc:21011
> 
> Can you please help me out , from where it is taking hostname
> 
> 
> 
> Regards,
> Snehal Nagmote
> IIIT-H
>