[GE users] qlogin fails from ROCKS compute node to external SGE exec host

reuti reuti at staff.uni-marburg.de
Thu Nov 26 18:31:29 GMT 2009


Am 26.11.2009 um 19:20 schrieb bergman:

> <snip>
> => anyway I think. If it's still not working, you could install a  
> second
>
> Hmmm...
>
> => network card into server1 so that it could also be inside the  
> private
> => network besides the external connection.
>
> I understand that, but it's not scalable. In my example "server1"  
> is a single
> machine. In reality, it's a proof of concept, and in the future  
> there may be
> dozens-to-hundreds of servers that are outside the ROCKS cluster,  
> but are
> accessed exclusively via SGE (qsub and qlogin).

But why you are not connecting them all to the inside of the cluster?  
They don't need to be one of the ROCKS machines. I thought the main  
reason was that you need access also from outside of the cluster to  
these machines. But when you are limiting it to SGE's access anyway...

-- Reuti


> Thank you very much for the quick answers.
>
> Mark
>
> =>
> => -- Reuti
> =>
> =>
> => > Will the $SGE_ROOT/default/common/host_aliases file help?
> => >
> => > => should work. As the shepherd startup will try to resolve
> => > compute-0-0
> => > => although it's not needed, it might hang at that point.
> => > =>
> => > => -- Reuti
> => > =>
> => > => PS: qsub is different, as it doesn't need a direct connection
> => > between
> => > => the issuing and executing machine at any point.
> => >
> => > Ah. Ok.
> => >
> => >
> => > Thanks,
> => >
> => > Mark
> => >
> => > =>
> => > =>
> => > => > Thanks,
> => > => >
> => > => > Mark
> => > => >
> => > => >
> => > => > ----
> => > => > Mark Bergman                              voice:  
> 215-662-7310
> => > => > mark.bergman at uphs.upenn.edu                 fax:  
> 215-614-0266
> => > => > System Administrator     Section of Biomedical Image  
> Analysis
> => > => > Department of Radiology            University of  
> Pennsylvania
> => > => >       PGP Key: https://www.rad.upenn.edu/sbia/bergman
> => > => >
> => >
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