Re: Hadoop Distributed System Problems: Does not recognise any slave nodes

[Andy XUE <an...@gmail.com>]

Hi all:

Thanks for your help. The problem is finally solved.
The problem I encounter and the corresponding solution is described here:
http://wiki.apache.org/hadoop/Hbase/Troubleshooting#A1

<http://wiki.apache.org/hadoop/Hbase/Troubleshooting#A1>Regards
XUE, Yuan (Andy)
The University of Melbourne


On 25 March 2011 01:50, modemide <mo...@gmail.com> wrote:

> I'm also new to hadoop, but I was able to get my cluster up and
> running.  I'm not familiar with Nutch though.
>
> In any case, my assumption is that Nutch relies on a working hadoop
> cluster as the base and adds on a few configurations to integrate the
> two.
>
> Here are some things that might help you:
> * Have you edited your slaves file to include the slave computer and
> the master file to include the jobtracker?
> * I also noticed that you are using open JDK for Java instead of sun
> java.  I went with the Hadoop recommended Java distribution.  Is there
> any particular reason for using Open JDK?
> * I'll assume that because you said that files are replicated on every
> computer, you only have two computers operating as slaves?
> * Do you have the configuration for your slaves done?  Can you attach
> those files?  (the attachments worked perfectly for me, I can't visit
> the paste sites at work unfortunately)
>
>
> Hope that gets you started in the right direction.  Also, if it helps,
> I went through these tutorials several times and found them much more
> helpful.  Maybe it will also help you:
>
> http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/
>
> http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/
>
>
> On Thu, Mar 24, 2011 at 9:39 AM, Harsh J <qw...@gmail.com> wrote:
> > Hello,
> >
> > Thanks for attaching the log.
> >
> > On Thu, Mar 24, 2011 at 5:34 PM, Andy XUE <an...@gmail.com> wrote:
> >> and the log file with error
> >> message (*hadoop-rui-jobtracker-ss2.log <http://db.tt/PPGhEaa>*) are
> linked.
> >
> > This is a case of
> >
> http://wiki.apache.org/hadoop/FAQ#What_does_.22file_could_only_be_replicated_to_0_nodes.2C_instead_of_1.22_mean.3F
> >
> > --
> > Harsh J
> > http://harshj.com
> >
>