[Beowulf] SGE qconf, renaming hosts/queues?

Reuti reuti at staff.uni-marburg.de
Thu Sep 8 02:44:54 PDT 2011

Am 08.09.2011 um 01:05 schrieb mathog:

> Just finished migrating most everything on the cluster from the old 
> headnode to a new one, but
> the old headnode has to remain functional for a while.   Even the node 
> name moved, and
> therein lies the rub.  In testing I had
> node    queue_names
> mendel  mendel_something
> newsaf  newsaf_something
> and that worked fine.  Now I want to rename node mendel to oldsaf, and 
> all the queue names

This is not forseen. You can only copy/paste the setting to a new queue and then delete the original one afterwards. Do you have one queue per node?

For changing hostnames it's best to remove the nodes first from SGE and then add them again with the new name.

-- Reuti

> to oldsaf_something.  Currently the mendel_* queues are all jammed, 
> because by IP number mendel
> is the same machine as newsaf, and it isn't even the same architecture.
> I must be missing something, because while I see qconf/qmon options to 
> modify nodes and queues, I don't
> see how to rename these.  Failing that, is there an easy way to dump 
> the host/queue description to a text file, edit
> that, and then re-create from the modified descriptions?  There are a 
> bunch of text configuration files in the
> SGE directory, but I'm  guessing that editing/renaming those directly 
> is a big no no.
> Thanks,
> David Mathog
> mathog at caltech.edu
> Manager, Sequence Analysis Facility, Biology Division, Caltech
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