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Access to the GRID [message #18535]

Mon, 28 September 2015 13:47

bene
Messages: 4
Registered: July 2015
Location: Cologne / Germany

occasional visitor

From: *ikp.uni-koeln.de

Dear all,

I would like to get access to the AGATA data on the GRID sites. However, the information linked on the agata.org site is rather out of date. In addition all information assumes that there is a local Grid Administrator, but in our case there is no such. So, if anyone has additional information on how to setup a AGATA enabled GRID ui and how to proceed further please let me know!

I'll try to update this thread in order to make it possible for other people to follow.

Cheers

Benedikt

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Re: Access to the GRID [message #18780 is a reply to message #18535]

Wed, 25 November 2015 17:37

bene
Messages: 4
Registered: July 2015
Location: Cologne / Germany

occasional visitor

From: *ikp.uni-koeln.de

Ok I made some advances, nevertheless I still don't have any access. My steps were:

1. Get a grid certificate and become a member of the vo

2. Install Scientific Linux release 6.7 (Carbon)
3. Install egi repository from the egi website
4. install lcg-utils
5. Install and set up voms-client
http://italiangrid.github.io/voms/documentation/voms-clients-guide/3.0.3 /#cred
6. Copy my own certificates and set up paths
7. create voms lsc
https://cclcgvomsli01.in2p3.fr:8443/voms/vo.agata.org/configuration/conf iguration.action
8. install repo for ca certificates
https://wiki.egi.eu/wiki/EGI_IGTF_Release

And here I am. I can start a local proxy, but I get an error message

Error: verify failed.
Cannot verify AC signature!

However the proxy is started. Now I think I should be able to connect to the grid site and start fetching stuff, but actually I have no idea how....

Any tips?

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Re: Access to the GRID [message #18787 is a reply to message #18780]

Fri, 27 November 2015 13:30

Damian Ralet
Messages: 35
Registered: July 2014
Location: Darmstadt

continuous participant

From: *in2p3.fr

Dear Benedikt,

Nice that you manage to proceed on the GRID status.
Have you contacted Mohammed Kaci from Valencia? I know that he has been doing some grid data analysis, and that he wrote an additional layer to ease data transfer from storage place to computing unit.
Here is the two links of the presentations and "How To" he wrote for the EGAN school of 2012.
ns.ph.liv.ac.uk/EGAN/files/wednesday/EGANS2012-GRID-kaci.pdf
http://ns.ph.liv.ac.uk/EGAN/files/wednesday/GRID-HOWTO.pdf

Cheers,
Damian

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Re: Access to the GRID [message #18788 is a reply to message #18787]

Fri, 27 November 2015 14:36

bene
Messages: 4
Registered: July 2015
Location: Cologne / Germany

occasional visitor

From: *ikp.uni-koeln.de

Thank you a lot Damian,

Actually I handled it yesterday to download a single file. Are you aware of any tools that allow recursive download?

Cheers

Benedikt

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Re: Access to the GRID [message #18789 is a reply to message #18788]

Fri, 27 November 2015 15:50

Damian Ralet
Messages: 35
Registered: July 2014
Location: Darmstadt

continuous participant

From: *in2p3.fr

Hi Benedikt,

I know that people in IPN has the same issue than you to download more than one file.
I supposed that Mohammed had something for this, but I am not completely sure.
I contacted him. I will let you know.

Cheers,
Damian

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Re: Access to the GRID [message #18802 is a reply to message #18789]

Wed, 02 December 2015 10:51

bene
Messages: 4
Registered: July 2015
Location: Cologne / Germany

occasional visitor

From: *ikp.uni-koeln.de

Thank you Damian,

I finally handled it myself by writing a small python script that collects all files.
I wrote a small documentation on how to set up a system, register and download experimental data from the grid sites.

It is available from the IKP website

http://www.ikp.uni-koeln.de/research/agata/index.php?show=documentation

and I also attached it to this post. So maybe it helps somebody in the future.