How to set up a CERN OpenStack instance with AFS and GRID access
Create a VM instace
Log in as root using the keypair
Install the packages for GRID to work
yum install wget
yum-config-manager --add-repo http://linuxsoft.cern.ch/wlcg/wlcg-sl6.repo
wget http://linuxsoft.cern.ch/wlcg/RPM-GPG-KEY-wlcg -P /etc/pki/rpm-gpg
yum install wlcg-repo
yum install voms-clients
yum-config-manager --add-repo http://linuxsoft.cern.ch/egi/production/cas/1/current
wget http://repository.egi.eu/sw/production/cas/1/current/repo-files/egi-trustanchors.repo -O /etc/yum.repos.d/egi-trustanchors.repo
yum install CERN-CA-certs ca_CERN-GridCA ca_CERN-Root ca_CERN-Root-2
yum install wlcg-voms-lhcb
Test the setup
voms-proxy-init -voms lhcb
SetupProject Bender
echo "ls()" | bender "root://xrootd-lhcb.cr.cnaf.infn.it//storage/gpfs_lhcb/lhcb/disk/LHCb/Collision15/TURBO.MDST/00047765/0000/00047765_00001241_1.turbo.mdst"
You should see Bender output with the event fields like this:
/Event/DAQ DataObject
/Event/DAQ/RawEvent LHCb::RawEvent
/Event/DAQ/ODIN LHCb::ODIN
/Event/Turbo
/Event/Rec DataObject
Or, if something happens with this particular site,
FAILURE
in the Ipython section with
IODataManager ERROR Error: connectDataIO> Cannot connect to database
in the log above.
Setup tmux and k5reath for running background tasks with AFS access
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NikitaKazeev - 2016-02-08