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From Olivier Renault <orena...@hortonworks.com>
Subject Re: Running job issues
Date Tue, 26 Aug 2014 16:45:57 GMT
Looking at the error message, it looks like your namenode is not formated.

On the namenode, could you run

hadoop namenode -format

Hope it helps.

Kind regards
Olivier
On 26 Aug 2014 11:08, "Blanca Hernandez" <Blanca.Hernandez@willhaben.at>
wrote:

>  Hi!
>
>
>
> I have just installed hadoop in my windows x64 machine.l followd carefully
> the instructions in https://wiki.apache.org/hadoop/Hadoop2OnWindows but
> in the 3.5 and 3.6 points I have some problems I can not handle.
>
>
>
> %HADOOP_PREFIX%\sbin\start-dfs.cmd
>
>
>
>
>
> The datanode can no connect: 14/08/26 12:01:30 WARN datanode.DataNode:
> Problem connecting to server: 0.0.0.0/0.0.0.0:19000
>
> And the namenode does not even start: 14/08/26 12:01:09 WARN
> namenode.FSNamesystem: Encountered exception loading fsimage
> java.io.IOException: NameNode is not formatted.
>
>
>
> Trying to get running the mapreduce-example indicated in the pont 3.6, I
> get the connection exception again. Tha brings me to the
> http://wiki.apache.org/hadoop/ConnectionRefused page where the exception
> in explained. So I guess I have some misunderstandings with the
> configuration. I tried to find information about that and found the page
> http://wiki.apache.org/hadoop/HowToConfigure but is still not very clear
> for me.
>
>
>
> I attach my config files, the ones I modified maybe you can help me out…
>
>
>
> Many thanks!!
>

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