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Posted to common-user@hadoop.apache.org by Pierre Antoine DuBoDeNa <pa...@gmail.com> on 2012/06/09 21:52:10 UTC
master and slaves are running but they seem disconnected
Hello everyone..
I have a cluster of 5 VMs, 1 as master/slave the rest are slaves. I run
bin/start-all.sh everything seems ok i get no errors..
I check with jps in all server they run:
master:
22418 Jps
21497 NameNode
21886 SecondaryNameNode
21981 JobTracker
22175 TaskTracker
21688 DataNode
slave:
3161 Jps
2953 DataNode
3105 TaskTracker
But in the web interface i get only 1 server connected.. is like the
others are ignored.. Any clue why this can happen? where to look for errors?
The hdfs web interface:
Live Nodes<http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=LIVE>
: 1 Dead Nodes<http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=DEAD>
: 0
it doesn't even show the rest slaves as dead..
can it be a networking issue? (but i start all processes from master and it
starts all processes to all others).
best,
PA
Re: master and slaves are running but they seem disconnected
Posted by Pierre Antoine DuBoDeNa <pa...@gmail.com>.
Oh i fixed the problem.. I changed for another application the hosts files
to include localhost at 127.0.0.1 .. that seems to have destroyed
everything..
Thanks for the quick responses guys.
2012/6/9 shashwat shriparv <dw...@gmail.com>
> Please send the content of all the hosts file from all the machines. and
> master and slaves contents from all the machines from master and the slave
> machines.
>
> On Sun, Jun 10, 2012 at 1:39 AM, Joey Krabacher <jkrabacher@gmail.com
> >wrote:
>
> > Not sure, but I did notice that safe mode is still. I would investigate
> > that and see if the other nodes show up.
> >
> > /* Joey */
> > On Jun 9, 2012 2:52 PM, "Pierre Antoine DuBoDeNa" <pa...@gmail.com>
> > wrote:
> >
> > > Hello everyone..
> > >
> > > I have a cluster of 5 VMs, 1 as master/slave the rest are slaves. I run
> > > bin/start-all.sh everything seems ok i get no errors..
> > >
> > > I check with jps in all server they run:
> > >
> > > master:
> > > 22418 Jps
> > > 21497 NameNode
> > > 21886 SecondaryNameNode
> > > 21981 JobTracker
> > > 22175 TaskTracker
> > > 21688 DataNode
> > >
> > > slave:
> > > 3161 Jps
> > > 2953 DataNode
> > > 3105 TaskTracker
> > >
> > > But in the web interface i get only 1 server connected.. is like the
> > > others are ignored.. Any clue why this can happen? where to look for
> > > errors?
> > >
> > > The hdfs web interface:
> > >
> > > Live Nodes<
> > > http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=LIVE
> >
> > > : 1 Dead Nodes<
> > > http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=DEAD
> >
> > > : 0
> > > it doesn't even show the rest slaves as dead..
> > >
> > > can it be a networking issue? (but i start all processes from master
> and
> > it
> > > starts all processes to all others).
> > >
> > > best,
> > > PA
> > >
> >
>
>
>
> --
>
>
> ∞
> Shashwat Shriparv
>
Re: master and slaves are running but they seem disconnected
Posted by shashwat shriparv <dw...@gmail.com>.
Please send the content of all the hosts file from all the machines. and
master and slaves contents from all the machines from master and the slave
machines.
On Sun, Jun 10, 2012 at 1:39 AM, Joey Krabacher <jk...@gmail.com>wrote:
> Not sure, but I did notice that safe mode is still. I would investigate
> that and see if the other nodes show up.
>
> /* Joey */
> On Jun 9, 2012 2:52 PM, "Pierre Antoine DuBoDeNa" <pa...@gmail.com>
> wrote:
>
> > Hello everyone..
> >
> > I have a cluster of 5 VMs, 1 as master/slave the rest are slaves. I run
> > bin/start-all.sh everything seems ok i get no errors..
> >
> > I check with jps in all server they run:
> >
> > master:
> > 22418 Jps
> > 21497 NameNode
> > 21886 SecondaryNameNode
> > 21981 JobTracker
> > 22175 TaskTracker
> > 21688 DataNode
> >
> > slave:
> > 3161 Jps
> > 2953 DataNode
> > 3105 TaskTracker
> >
> > But in the web interface i get only 1 server connected.. is like the
> > others are ignored.. Any clue why this can happen? where to look for
> > errors?
> >
> > The hdfs web interface:
> >
> > Live Nodes<
> > http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=LIVE>
> > : 1 Dead Nodes<
> > http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=DEAD>
> > : 0
> > it doesn't even show the rest slaves as dead..
> >
> > can it be a networking issue? (but i start all processes from master and
> it
> > starts all processes to all others).
> >
> > best,
> > PA
> >
>
--
∞
Shashwat Shriparv
Re: master and slaves are running but they seem disconnected
Posted by Joey Krabacher <jk...@gmail.com>.
Not sure, but I did notice that safe mode is still. I would investigate
that and see if the other nodes show up.
/* Joey */
On Jun 9, 2012 2:52 PM, "Pierre Antoine DuBoDeNa" <pa...@gmail.com> wrote:
> Hello everyone..
>
> I have a cluster of 5 VMs, 1 as master/slave the rest are slaves. I run
> bin/start-all.sh everything seems ok i get no errors..
>
> I check with jps in all server they run:
>
> master:
> 22418 Jps
> 21497 NameNode
> 21886 SecondaryNameNode
> 21981 JobTracker
> 22175 TaskTracker
> 21688 DataNode
>
> slave:
> 3161 Jps
> 2953 DataNode
> 3105 TaskTracker
>
> But in the web interface i get only 1 server connected.. is like the
> others are ignored.. Any clue why this can happen? where to look for
> errors?
>
> The hdfs web interface:
>
> Live Nodes<
> http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=LIVE>
> : 1 Dead Nodes<
> http://fusemaster.cs.columbia.edu:50070/dfsnodelist.jsp?whatNodes=DEAD>
> : 0
> it doesn't even show the rest slaves as dead..
>
> can it be a networking issue? (but i start all processes from master and it
> starts all processes to all others).
>
> best,
> PA
>