GridPP Technical Meeting

Friday 13 Oct 2017, 11:00 → 12:50 Europe/London

Virtual Only

Andrew McNab (University of Manchester), David Colling (Imperial College Sci., Tech. & Med. (GB))

Fortnightly meeting for technical topics looking further ahead than the weekly ops meetings on Tuesdays. There are also dedicated storage group meeting on Wednesdays. Each topic can go beyond the nominal 5 minute slot whenever necessary.

Notes from the technical meeting

 

David Crooks gave an account of the task forces. 

In order:

SOC work:

https://indico.cern.ch/event/667605/

The minutes of these meetings are restricted to the working group which all are welcome to join. There will be a workshop on the 11th and 12th of December (pre-GDB and the day before) and this will be very hands on and there will be some discussion 

Traceability:

Discussions about singularity started here but have now been spun off into the containers working group.

https://indico.cern.ch/event/667685/

There are minutes attached to the indico page. There were discussions about VO traceability and how to perform this locally. There was also a discussion about storage traceability and Brian discussed SciTokens building on the talk that he gave at the GDB.

https://indico.cern.ch/event/578991/contributions/2746656/attachments/1538987/2412485/SciTokens-GDB-Oct-2017.pdf

Authorisation:

https://indico.cern.ch/event/670330/

Was discussion about whether the full x.509 was needed for OSG - the university trusts the user and the experiment trusts the user. This also involved SciTokens for storage. 

There are lots of discussions point for the next F2F (how will the world look post globus).

 

Evolution of Tier 2 CPU/VMs etc

VAC testing of latest release support of SL7.

LHCb are about start testing the interruptable  MC. The watchdog has been used on the trig farm but is being rolled out over the grid through Dirac.

Comment from QMUL:

We have a preemption queue at QM, doing event service work for ATLAS. might work for this type of workload?

 

Evolution of Tier 2 Storage

Atlas texting x-cache (really just xrootd proxy cache). Interest from RHUL and Oxford.

Networking

Nothing much to but there is a need for a plan for EGI -Ops on IPv6 are.

Security

Nothing extra

No AoB

 

11:00 → 11:20 AuthZ WG

Speaker: David Crooks (University of Glasgow (GB))

11:20 → 11:25 Tier-2 Evolution: Jobs in VMs

11:25 → 11:30 Tier-2 Evolution: Storage

Speaker: Samuel Cadellin Skipsey

11:30 → 11:35 Development of GridPP services

e.g. the GridPP DIRAC service

11:35 → 11:40 Other updates from the Storage Group

11:40 → 11:45 Networking including IPv6

11:45 → 11:50 Security

Speaker: Ian Neilson (STFC RAL (GB))

11:50 → 11:55 AoB