US-ALICE Grid operations review

11 Apr 2019, 09:15 → 15 Apr 2019, 12:30 US/Pacific

Thursday 70-191, Friday 2-100, Monday Pers-Hall Annex (Lawrence Berkeley Lab)

Jeff Porter (Lawrence Berkeley National Lab. (US)), Latchezar Betev (CERN)

Yearly review of the Grid operations in the ALICE US sites

Thursday 11 April

1 Intro, Goals & Agenda tuning

Speaker: Jeff Porter (Lawrence Berkeley National Lab. (US))

Intro_Map.pdf

Intro_Map.pptx

2 ALICE-USA Computing project summary

overview of project status with pointers to specific items we hope to address during the meeting.

Speaker: Jeff Porter (Lawrence Berkeley National Lab. (US))

US overview.pdf

US overview.pptx

10:30 coffee break

3 ALICE Computing requirements 2019-2021

https://docs.google.com/document/d/1IDV0UE1oVkHrheToJjl1fQycFIWbzQ-c4ULRkMwrv6o/edit?ts=5caf6a69

Review of new requirements and expected changes in the job flux into the T2s for Run 3. Also, any new infrastructure on the horizon ... Singularity?

Speaker: Latchezar Betev (CERN)

4 US T2 layout details, 2019 task list, evolution plans

Fill out a Google doc on layout details, items on our to-do list, and how the project expect the clusters to grow/evolve. Note any site issues that may impact these plans

Speakers: Jeff Porter (Lawrence Berkeley National Lab. (US)), John White (LBNL), Karen Fernsler (LBNL), Pete Eby (Oak Ridge National Laboratory - (US))

12:15 Lunch

5 US T2 layout, 2019 task lists, evolution plans continued

Speakers: Jeff Porter (Lawrence Berkeley National Lab. (US)), John White (LBNL), Karen Fernsler (LBNL), Pete Eby (Oak Ridge National Laboratory - (US))

6 Quick Check of site health: review from last year

list of items from ALICE monitoring that one should check and a quick review of how to identify problems via aliensh.

Speaker: Latchezar Betev (CERN)

7 T2 Site Test Infrastructure

Identify set of tasks that can be scripted via aliensh or pyJalien.py - to help verify that site behavior is normal relative to ALICE use &/or to identify specific issues: site-to-site FW block, CMreport not working, Grid cert expired, ...

Speakers: Jeff Porter (Lawrence Berkeley National Lab. (US)), Pete Eby (Oak Ridge National Laboratory - (US))

15:15 Coffee Break

8 NERSC HPC status, current model, future plans, summer students

Speaker: Jeff Porter (Lawrence Berkeley National Lab. (US))

NERSC_HPC_outlook.pdf

NERSC_HPC_outlook.pptx

9 ESnet Review prep & overview

Overview of review process and objective, with opportunity to fill out some numbers.

Report as exists:

https://docs.google.com/document/d/1_5jIzpTFfJJgzEiokYsxb3Ked4eKYx5MZVR_Ll-DnFs

Friday 12 April

10 WAN: Requirements & Monitoring plans

Review expectations/requirements RTT/bandwidth,
monitoring capabilities of perfsonar & its installation
Build a reply to Shawn McKee on what instances to include in OSG monitoring network

Notes from Pete:

https://docs.google.com/presentation/d/1ic0lgYWHGXtGAN7UyQGFQoOXM0e0X9qokOqISVgBC7k

Speakers: Costin Grigoras (CERN), Pete Eby (Oak Ridge National Laboratory - (US))

11 EOS drain summary & EOS or XRootD test infrastructure

Debrief on draining our 2 EOS storages. Lessons learned?

Could EOS/XRootD test infrastructure help? Better network / server monitors?

Speakers: Costin Grigoras (CERN), Jeff Porter (Lawrence Berkeley National Lab. (US)), John White (LBNL), Pete Eby (Oak Ridge National Laboratory - (US))

11:10 coffee discussion

12 Analysis Jobs: overview of common features, efficiency

General summary of how analysis jobs work (or don't!), where efficiency loss arises, how to detect

Speaker: Costin Grigoras (CERN)

12:15 Lunch

13 HPCS Efficiency evaluation

review monitors of HPCS efficiency: contributions & determine what is reasonable to expect given data layout. If not reasonable, how to fix?

Speakers: Costin Grigoras (CERN), Jeff Porter (Lawrence Berkeley National Lab. (US)), John White (LBNL), Karen Fernsler (LBNL)

14 Site configurations to support Run 3

We're starting to buy / configure T2 hardware for Run 3. What should we be doing? Will we support analysis?

Speaker: Latchezar Betev (CERN)

15:15 coffee

15 T2 Site Test Infrastructure, revisited

Speakers: Jeff Porter (Lawrence Berkeley National Lab. (US)), Pete Eby (Oak Ridge National Laboratory - (US))

16 AOB

Monday 15 April

17 WP15 status & plans for US participation