On 10/28/2018 07:16 PM, Maarten Litmaath wrote:
> Hi Adrian, all,
> that does not appear to be quite sufficient:
>
> $ source /cvmfs/grid.cern.ch/umd-c7wn-latest/etc/profile.d/setup-c7-wn-example.sh
> $ env | grep ^LD_ | tr : \\n
> LD_LIBRARY_PATH=/cvmfs/grid.cern.ch/centos7-wn-4.0.5-1_umd4v1/lib64
> /cvmfs/grid.cern.ch/centos7-wn-4.0.5-1_umd4v1/lib
> /cvmfs/grid.cern.ch/centos7-wn-4.0.5-1_umd4v1/usr/lib64
> /cvmfs/grid.cern.ch/centos7-wn-4.0.5-1_umd4v1/usr/lib
> $ gfal-ls
> Traceback (most recent call last):
> File "/cvmfs/grid.cern.ch/centos7-wn-4.0.5-1_umd4v1/usr/bin/gfal-ls", line 24, in <module>
> from gfal2_util.shell import Gfal2Shell
> File "/cvmfs/grid.cern.ch/centos7-wn-4.0.5-1_umd4v1/usr/lib/python2.7/site-packages/gfal2_util/shell.py", line 23, in <module>
> from base import CommandBase
> File "/cvmfs/grid.cern.ch/centos7-wn-4.0.5-1_umd4v1/usr/lib/python2.7/site-packages/gfal2_util/base.py", line 32, in <module>
> import gfal2
> ImportError: libjson-c.so.2: cannot open shared object file: No such file or directory
>
> Apparently it is assumed the WN has a bunch of dependencies installed.
well, yes, i omitted the HEP_OSlibs step as it is installed by default
for all compute nodes .. but HEP_OSlibs do not requests gfal
repoquery -R HEP_OSlibs.x86_64 | grep -i gfal
plus, i had the unpleasant surprise that HEP_OSlibs cannot be installed
on machines that use mainline kernel packages:
Error: kernel-ml-headers conflicts with
kernel-headers-3.10.0-862.14.4.el7.x86_64
as it has the dependency of kernel-headers .. is this considered a bug
by everyone or just by me? (should i add an issue on
gitlab.cern.ch/linuxsupport/rpms/HEP_OSlibs/ ?)
> They might get pulled in via HEP_OSlibs, but the CVMFS WN rather ought
> to work for any VO... CC Matt Doidge for comments.
Thanks!
Adrian
>
> ________________________________________
> From: LHC Computer Grid - Rollout [[log in to unmask]] on behalf of Adrian Sevcenco [[log in to unmask]]
> Sent: 28 October 2018 17:58
> To: [log in to unmask]
> Subject: [LCG-ROLLOUT] usage of wn tarball/cvmfs package
>
> Hi! I am not sure that i understood correctly the usage of cvmfs
> distribution of wn umd packages ..
> So, what i got so far is this :
> echo "export GLITE_VERSION=umd-c7wn-latest" >
> /etc/cvmfs/config.d/grid.cern.ch.local
>
> or umd-sl6wn-latest
>
> and :
> cat > /etc/profile.d/wn-enable.sh <<EOF
> source /etc/cvmfs/config.d/grid.cern.ch.local
> source /cvmfs/grid.cern.ch/${GLITE_VERSION}/etc/profile.d/*
> EOF
>
> Would these steps be everything needed for usage of umd compute nodes?
> (of course the scheduler is already in place)
>
> Thank you!!
> Adrian
>
>
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--
----------------------------------------------
Adrian Sevcenco, Ph.D. |
Institute of Space Science - ISS, Romania |
adrian.sevcenco at {cern.ch,spacescience.ro} |
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