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WLCG Collaboration Workshop (Tier0/Tier1/Tier2)
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Europe/Zurich
Main auditorium (CERN)
Main auditorium
CERN
Description
Possible themes:
- WLCG Service Reliability: focus on Tier2s and progress since November 2007 workshop (1 day?)
- CCRC'08 & Full Dress Rehearsals - status and plans (2 days?)
- Operations track (2 days, parallel)
- Analysis track (2 days, parallel)
Invited talks:
- LHC status
- Experiment commissioning and first papers...
- EGI_DS status
- ...
ARRIVAL AT GENEVA COINTRIN AIRPORT
Free tickets - valid for 80 minutes - are available for passengers arriving at Geneva airport. More detailsTickets are also given at Geneva hotels & hostels for the duration of your stay! (Doubt that this is true for the CERN hostel!)
GETTING TO CERN AND ACCOMMODATION
Information on how to get to CERN can be found here.The CERN hostels page can be found here, together with a list of nearby hotels. (No block bookings have been made at the CERN hostel!)
VISITORS' PORTABLES: NETWORK ACCESS
Registration of Computers is mandatory at CERN: register your portable computer.
You must register the MAC address of all network interfaces that you plan to use.
- Visitors WITHOUT a CERN Computing Account:
- Register here
- Visitors or CERN users WITH a CERN NICE/mail account:
- Register here (Attention: CERN Intranet page - register when at CERN)
MAILING LIST OF ATTENDEES
wlcg-workshop-apr08@cern.chParticipants
223
View full list
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WLCG Service Reliability Session Main auditorium
Main auditorium
CERN
- 1
- 2
- 3
- 4
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10:30
coffee break
- 5
- 6
- 7
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12:30
lunch break Main auditorium
Main auditorium
CERN
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WLCG Storage Issues Main auditorium
Main auditorium
CERN
Note-takers:
- Dirk Duellmann
- Paul Millar
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8
Storage Performance Issues, Monitoring etc.This session will discuss how to improve the performance of tape-backed MSS systems (or what the experiments could/should do to give hints to the system).
(experiences, suggestions for dCache and Castor, etc.).
See also: { One and the same monitoring tool is needed for tapes for all T1โs. Action on: Jamie Shiers } We have another use case, but this is primarily for CERN. We still have users reading from tape and we didn't know. Actually there are hundreds of tapemounts per day for reading by users and we didn't know. If we would have had any monitoring we would have been able to spot this much earlier. Now we learned for the first time in a presentation by Tim Bell.
Example of basic stats:
https://sls.cern.ch/sls/service.php?id=CASTORATLAS_T0ATLAS - 9
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15:30
coffee break
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10
Summary of recommendations / proposals regarding SRM v2.2 (for May and perhaps beyond...)Speaker: Flavia Donno (CERN)
- 11
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Review of February (and March) runs of CCRC'08 Main auditorium
Main auditorium
CERN
Note-takers:
- Maarten Litmaath
- Patricia Mendez Lorenzo
- 12
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13
CCRC08 - View from SitesSpeakers: Derek Ross (RAL), Harry Renshall (CERN), Ian FISK (US-CMS)
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10:30
coffee break
- 14
- 15
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12:30
lunch break
- 16
- 17
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18
Panel on Support IssuesSpeaker: Supporters, Experiments, Sites, ...
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15:30
coffee break
- 19
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Planning for May run of CCRC'08 Main auditorium
Main auditorium
CERN
Important to stress not only the 'Computing Model' styles of steady-state operation, but also the more chaotic data access patterns that are likely to typify early data taking (e.g. more requests from more sites to access to raw/ESD files - impact on resources...)
Note-takers:
- Simone Campana
- Pablo Saiz
- 20
- 21
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10:05
coffee break
- 22
- 23
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12:05
lunch break
- 24
- 25
- 26
- 27
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14:55
coffee break
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28
Follow-up on Action Items from April CCRC'08 F2FSome of the topics:
- Common convention for operator alarm mailing lists
- For CERN, -> vo-operator-alarm@cern.ch; co-owned by experiment and IT; only list-members may post
- For external sites; implement NIKHEF's solution
- Dashboards: need clear agreement on what sites should look at (site view?)
- Intervention notifications - including also 'transparent' ones...
- Negotiation of site configuration for an experiment
- Queue time limits
- Shares
- How do sites figure out what is going on?
- (Support issues discussed earlier - conclusion(s)?)
- Common convention for operator alarm mailing lists
- 29
- 30
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WLCG Collaboration drink Restaurant number 1, main building
Restaurant number 1, main building
CERN
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Operations Session 1 Main auditorium
Main auditorium
CERN
Note-takers
- Juergen Knobloch
- Laura Perini
- 31
- 32
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10:45
coffee break
- 33
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12:00
lunch break
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Monitoring Tutorial(s) 513-1-24
513-1-24
CERN
- 34
- 35
- 36
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37
Questions + Feedback from sites- Is this useful ? - how would you use it - what would you like to see done differently?
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15:00
break
- 38
- 39
- 40
- 41
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42
Up-coming Challenges and Opportunities for DB Services in WLCG 28/S-029Speaker: Jamie Shiers (CERN)
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43
DBA Q & A Session 28-s-029
28-s-029
CERN
A collection of "hot" DBA topics from Alexander / Doris / John / CarlosSpeaker: Carlos Gamboa (Brookhaven National Lab)
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42
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Operations Session 2 Main auditorium
Main auditorium
CERN
Note-takers:
- Tiziana Ferrari
- Laura Perini
- 44
- 45
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46
Future WLCG Operations / VO Support - Panel DiscussionFollowing on from yesterday's discussion on EGI and the EGEE III transition, how do we prepare for the smooth transition to operations and VO / Applications Support in the late 2009 - 2012 era?
N.B. as this is a WLCG Workshop, the intent here is to understand things in terms of WLCG requirements and priorities, although clearly a solution compatible with EGI/NGI directions and applicable to other applications would be of interest!
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11:15
coffee break
- 47
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12:30
lunch break
- 48
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49
WLCG Operations sessions
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15:30
coffee break
- 50
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Database Track 160 1-009
160 1-009
CERN
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51
DB service upgrade and streams intervention responsibilitiesSpeakers: Eva Dafonte Perez (CERN), Maria Girone (CERN)
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52
DB availability and performance page
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53
Experiments' updates: new DB applications and deployment planse.g. DQ2 / AMI replication (Contributions by ATLAS/CMS/LHCb)Speaker: Florbela Viegas (CERN)
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10:55
coffee break
- 54
- 55
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56
Experiment connectivity requests and firewall updateSpeaker: Dirk Duellmann (CERN)
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12:30
lunch break
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57
DB server limits (processes/sessions), session snipingContributions by Carlos/AndrewSpeaker: Carlos Gamboa (BNL)
- 58
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15:00
coffee break
- 59
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51
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