Upgrade to 0.20.0

[Turner Kunkel <th...@gmail.com>]

Hello all,
I had 0.18.0 working and recently downloaded 0.20.0 and copied over the
information from .18 where I figured it should go.
However, the HDFS isn't working.  I have JAVA_HOME in hadoop-env.sh set
correctly and I think I have core-site, hdfs-site, and mapred-site correct.
All the SSH connections are fine and I have the masters and slaves files
set.
Is there anything I'm missing?

Thanks.
-- 

-Turner Kunkel

Re: Upgrade to 0.20.0

[Raghu Angadi <ra...@yahoo-inc.com>]

Checking NameNode log would help. Mostly likely reason would be that you 
didn't give '-upgrade' option to 'start-dfs.sh' script. HDFS forces you 
to run with this option when you go to newer versions.

Yes, it is not very kind to innocent users.. but it's been that way 
mainly to avoid accidental upgrade or data loss. As the number of users 
grows, I think some of these policies will change.

Raghu.

Jakob Homan wrote:
> Some more detailed information or, hopefully, some logs would be helpful 
> here.  Have you verified that the namenode and datanodes are being 
> started correctly?
> -Jakob
> 
> 
> Turner Kunkel wrote:
>> Hello all,
>> I had 0.18.0 working and recently downloaded 0.20.0 and copied over the
>> information from .18 where I figured it should go.
>> However, the HDFS isn't working.  I have JAVA_HOME in hadoop-env.sh set
>> correctly and I think I have core-site, hdfs-site, and mapred-site 
>> correct.
>> All the SSH connections are fine and I have the masters and slaves files
>> set.
>> Is there anything I'm missing?
>>
>> Thanks.
> 

Re: Upgrade to 0.20.0

[Jakob Homan <jh...@yahoo-inc.com>]

Some more detailed information or, hopefully, some logs would be helpful 
here.  Have you verified that the namenode and datanodes are being 
started correctly?
-Jakob


Turner Kunkel wrote:
> Hello all,
> I had 0.18.0 working and recently downloaded 0.20.0 and copied over the
> information from .18 where I figured it should go.
> However, the HDFS isn't working.  I have JAVA_HOME in hadoop-env.sh set
> correctly and I think I have core-site, hdfs-site, and mapred-site correct.
> All the SSH connections are fine and I have the masters and slaves files
> set.
> Is there anything I'm missing?
> 
> Thanks.