[Vagnekman-users] Configuration change of the login node

[Per Lundqvist]

On Thu, 18 Nov 2010, lars malinowsky wrote:

> Hello,
> 
> as several transfers (rsync/scp) in and out of ekman
> seem to be hit the 10 minute cpu-time limit, the ekman
> compute-node k33n41.pdc.kth.se can be used for these
> transfers - you should be able to log on to it and use
> it in the same manner as you log on to ekman.pdc.kth.se.
> 
> Note that this compute node does not have a 10Gbit
> network to the outside world, only a 1Gbit network.
> 
> Consider this a stop-gap solution, for
> transfers only, until advised to do differently.
> 
> It's unknown whether the ffv-utility works out
> of the box or not on k33n41.pdc.kth.se.

ffv now works from k33n41.pdc.kth.se

In this situation if an ffv job would hit the cpu-time limit the
underlying rsync session would be killed, which would cause the ffv
job to be paused. When a job is paused you are notified by mail about
this. To resume a paused job you have to log in again and type:

   ffv resume <JOBID>

I could modify ffv such that it automatically tries to resume the
rsync file transfer if it is killed for some reason - i.e. not pausing
the job and not needing any manual intervention. But this is not how
it works today. It might not be such a good idea to change this
behaviour either, since most often if a process is killed it is done
for a reason - it is then very unexpected for the rsync transfer to
pop up automatically again.

/Per Lundqvist

-- 
Per Lundqvist

National Supercomputer Centre
Linköping University, Sweden

http://www.nsc.liu.se