LCG tips & tricks

How to get more detailed information what happened with the job in the submission chain

edg-job-get-logging-info -v 1 https://gdrb01.cern.ch:9000/UzkMx2PkslmdDcq9t7dWEQ

How to get the list of all resource brokers for a given VO

lcg-infosites --vo lhcb rb

How to get the spatial coordinates of the Grid computing centers

ldapsearch -p 2170 -h lcg-bdii.cern.ch -x -LLL -b "o=grid" "objectClass=GlueSite" GlueSiteLatitude GlueSiteLongitude

How to see which resource broker are configured for your UI?

The configuration files are VO-specific.

For AFS UI installation:

 /afs/cern.ch/project/gd/LCG-share/3.0.0/edg/etc/lhcb/edg_wl_ui.conf 

For local UI installation:

/opt/edg/etc/geant4/edg_wl_ui.conf
/opt/glite/etc/geant4/glite_wms.conf
/opt/glite/etc/geant4/glite_wmsui.conf

How to request for a certificate for another VO at CERN?

There is a new certificate authority at CERN at https://ca.cern.ch/ca so probably the instructions below are obsolete (to be checked).

Create a new certificate request with CN = YOUR NAME - VO:

~gridca/scripts/cert-req -dir $HOME/.globus-geant4 -cn "Jakub Moscicki 2231 - geant4"

Use your existing certificate to sign the request and send it to CA:

openssl smime -sign -to service-grid-ca@cern.ch -subject "Certificate Rekey Request"  -signer ~/.globus/usercert.pem -inkey ~/.globus/userkey.pem < /afs/cern.ch/user/m/moscicki/.globus-geant4/userreq.pem  | /usr/sbin/sendmail -t

The original instructions are at: http://service-grid-ca.web.cern.ch/service-grid-ca/default.html