Hi Michael,
In the LFC, the recommended deployment model is to have a /grid directory with as many /grid/VO sub-directories as there are supported VOs. Given that the right permissions have been put in place, you will only be able to write in /grid/dzero, if you belong to the dzero VO.
So, if the LFC administrator has followed the recommendation, this is the model you will find. However, this is not enforced at the LFC level.
But the current LCG tools (like lcg_utils, etc.) don't support any other deployment model, when used with the LFC... And currently, the catalog paths (like /grid/VO) are not published in the information system.
Cheers, Sophie.
________________________________
From: LHC Computer Grid - Rollout on behalf of Michael Hornhues
Sent: Wed 10/26/2005 2:27 PM
To: [log in to unmask]
Subject: Re: [LCG-ROLLOUT] How to get entry points from LFC out of the information system?
Hello Sophie,
thank you for your proposal, but unfortunately this is not exactly what I'm looking for.
When I want to copy and register a file using lcg_utils, I have to specify a lfn that begins with the path that is associated with my vo on the lfc-server.
For the dzero-vo that means that every lfn I can use has to begin with "lfn:/grid/dzero/", otherwise I get an error because of missing file-permissions.
Is there any way to get this mandatory part from the information system when only having the vo-name, or can I be sure that it is always like "/grid/vo-name"?
Cheers
Michael
Sophie Lemaitre schrieb:
Hello Graeme,
lcg-infosites comes with lcg-info-api-ldap and not lcg_utils. The last version available is :
http://grid-deployment.web.cern.ch/grid-deployment/download/RpmDir_i386-sl3/external/lcg-info-api-ldap-2.4-9.noarch.rpm
Cheers, Sophie.
PS : in my previous mail, I meant $LCG_GFAL_INFOSYS and not $LCG_GFAL_INFOSITES...
You can use lcg-infosites as follow :
- for local LFC catalogs :
lcg-infosites --vo your_VO lfc
- for central LFC catalogs :
lcg-infosites --vo your_VO lfcLocal
You first have to set $LCG_GFAL_INFOSITES approprietaly...
This is mentioned in the LFC Admin Guide :
https://uimon.cern.ch/twiki/bin/view/LCG/LfcAdminGuide
I hope it answers your question...
Cheers, Sophie.
Hi Sophie
The current versions of lcg_utils don't seem to support this option.
"lfcLocal" queries just print the help page, because it's not a
recognised option.
I've tried 1.3.1-1 (LCG 2.6.0 release) and 1.3.2-1 (last version in
http://grid-deployment.web.cern.ch/grid-deployment/RpmDir_i386-sl3/external/).
Is there something else we should be using?
Cheers
Graeme
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Dr Graeme Stewart http://www.physics.gla.ac.uk/~graeme/
GridPP DM Wiki http://wiki.gridpp.ac.uk/wiki/Data_Management
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