[GE users] Unknown host

Robert White alphamonk at gmail.com
Wed Dec 19 23:01:39 GMT 2007


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Do you know of a way I can tell which system was the master system that
needed to communicate with the slave nodes. I am running qacct -j 2136232 -o
-h. Will this output allow me to find out which node was the master? Are
there any other commands that could provide the information I seek.

Bob

On Dec 19, 2007 9:32 AM, Rayson Ho <rayrayson at gmail.com> wrote:

> The first task of the MPI job needs to connect to the rest of the
> nodes that are allocated to the MPI job to start the slave tasks -- so
> may be 1 or 2 hosts could not resolve some hostnames properly, and
> that's why if the first task does not land on those hosts, the job
> runs fine??
>
> Rayson
>
>
>
> On Dec 18, 2007 11:44 AM, Robert White <alphamonk at gmail.com> wrote:
> > Yes the jobs that are giving this error are parallel jobs.
> >
> >
> > On Dec 17, 2007 6:21 PM, Rayson Ho <rayrayson at gmail.com> wrote:
> >
> > > Is it a parallel job??
> > >
> > > Rayson
> > >
> > > On Dec 17, 2007 11:10 AM, Robert White <alphamonk at gmail.com> wrote:
> > > > My users receive this error message from time to time and I was
> > wondering if
> > > > anyone out there knows what the cause or possible cause of the
> message
> > could
> > > > be. I am able to resolve the hostname from all computers using
> nslookup
> > and
> > > > grids gethostbyname application. I am not able to resolve this name
> > using
> > > > the "execd@" in front of the hostname.
> > > >
> > > > error: executing task of job 2134745 failed: failed sending task to
> > > > execd at quark.serverengines.com : UNKNOWN_HOST
> > > >
> > > > Any help would be greatly appreciated.
> > > >
> > > > Bob
> > >
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> >
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