I'm having a general question on how yaim configures torque:
On the CE (= torque server) edg-pbs-knownhosts & edg-pbs-shostsequiv are
executed to add the ssh keys/hostnames of all WNs (= torque clients) and
the SE. This is necessary as the WNs need to scp their output back to the
CE. But also on the WNs edg-pbs-knownhosts gets executed. I wonder why
this is necessary for the WNs. Is it because of Torque or are there other
LCG services which need these keys on the WNs ? Also, why has the SE ssh
key also to be added ? If one had shared NFS home dirs on the CE/WNs could
one abandon all the ssh configuration ? (of course one would have to
configure pbs_mom with the correct $usecp directives).
Thanks,
Andreas
--
Andreas Unterkircher
IT Department
CERN
CH-1211 Geneva 23
http://cern.ch/openlab
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