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Logistics

Date

  – 

Location

This meeting will be virtual; details of the teleconferencing system are to be determined.

Attendees

Agenda


Day 1: 2020-09-15

Time (Project)TopicCoordinatorPre-meeting notesRunning notes

Moderator: John Swinbank

09:00WelcomeWil O'Mullane
  • Introductory remarks
  • Review agenda and code of conduct

09:15Project news and updates

Wil O'Mullane

  • It's been three weeks since our last DMLT call; what's been happening?

09:45Community support

Leanne Guy

  • Melissa Graham  has proposed a model for technical support during construction, which spawned some discussion on RFC-703.
  • She has subsequently been developing these ideas into DMTN-155 (not published at time of writing).
  • Do we have DMLT sign-off on these ideas? In particular, do they provide an adequate level of support to the community, without placing an excessive burden on the construction team?
  • How will these plans be communicated to the wider community?

10:30Break

Moderator: 

11:00Improvements to the build and release system

Kian-Tat Lim

  • The Architecture team is working towards a series of improvements in the build and release system.
  • What is planned?
  • What is the implementation schedule?

12:00DMTN-148

John Swinbank

  • This is the long-discussed calibration products policy document.
  • Can we sign off on it by this point? If not, what's needed to get us to that point?

12:30Break

Moderator: 

13:00Generation 3 middleware plans and acceptance criteria

Tim Jenness  / Robert Gruendl

  • Present the criteria which have been developed for Gen3 achieving “feature parity” with Gen2, the associated test plan, and the associated timelines

14:30Close

Day 2: 2020-09-16

Moderator: 
09:00Level 3 milestones

John Swinbank

In discussion at the JDR, a couple of issues emerged surrounding L3 milestones:

  • The review recommended that our milestone tracking being more automated / streamlined;
  • Existing milestones being poorly defined (to the extent that the responsible T/CAMs don't know what they mean).

How can we address these?


09:30Team status

John Swinbank

  • Each group please provide (~10 minutes total):
    • A brief retrospective on what's happened since our last meeting.
    • Plans for the next few months.
  • Following past griping, order is now determined by the magic of Python...
[ins] In [2]: import random
[ins] In [3]: random.shuffle(teams)
[ins] In [4]: teams
Out[4]:
['SQuaRE (Frossie Economou)',
'DAX (Fritz Mueller)',
'Data Facility (Michelle Butler)',
'Alert Production (John Swinbank)',
'DM Science (Leanne Guy)',
'Data Release Production (Yusra AlSayyad)',
'Architecture (Kian-Tat Lim)']

(Sorry Frossie!)


10:30Break
Moderator: 
11:00Team status

John Swinbank

  • Continued from above.

11:30Wrap up

Wil O'Mullane

  • Actions and next meetings.
  • Virtual, 2020-11-17/19.
  • Tucson, 2021-02-22/25.
    • MCR booked.

12:30Break

Moderator: 











14:30Close

Day 3: 2020-09-17

Moderator:











11:00Close


Attached Documents

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Action Item Summary

DescriptionDue dateAssigneeTask appears on
  • Frossie Economou Will recommend additional Level 3 milestones for implementation beyond just the DAX-9 Butler provenance milestone.   
15 Mar 2022Frossie EconomouDM Leadership Team Virtual Face-to-Face Meeting, 2022-02-15 to 17
  • Kian-Tat Lim Convene a meeting with Colin, Tim, Robert, Yusra to resolve graph generation with per-dataset quantities (likely based on Consolidated DB work).  
18 Mar 2022Kian-Tat LimDM Leadership Team Virtual Face-to-Face Meeting, 2022-02-15 to 17
  • Frossie Economou Write an initial draft in the Dev Guide for what "best effort" support means  
17 Nov 2023Frossie EconomouDM Leadership Team Virtual Face-to-Face Meeting - 2023-Oct-24
  • Convene a group to redo the T-12 month DRP diagram and define scope expectations Yusra AlSayyad 
30 Nov 2023Yusra AlSayyadDM Leadership Team Virtual Face-to-Face Meeting - 2023-Oct-24
11 Dec 2023Gregory Dubois-FelsmannDM Leadership Team Virtual Face-to-Face Meeting - 2023-Oct-24
02 May 2024Frossie EconomouDMLT Meeting - 2024-04-22
22 May 2024 DMLT Meeting - 2024-04-22
  • Richard Dubois USDF part in data facilities for PSTN-017 and distrib processing ? 
22 May 2024Richard DuboisDMLT Meeting - 2024-04-22
22 May 2024Fabio HernandezDMLT Meeting - 2024-04-22
  • Tim Jenness - section on middleware for PSTN-017  
22 May 2024Tim JennessDMLT Meeting - 2024-04-22
  • Cristián Silva - section on summit/data acquisition  for PSTN-017  
22 May 2024Cristián SilvaDMLT Meeting - 2024-04-22
  • Cristián Silva if you come to SLAC lets have plenty of photos of locks and racks etc ..
 Cristián SilvaDMLT Meeting - 2024-04-29
Richard DuboisDMLT Meeting - 2024-04-29

Pre-Meeting Planning

TopicRequested byTime required (estimate)Notes
Build system status

Leanne Guy

30 minutesIn May 2020 we were unable to make a 19.0.1 patch release because of incompatible changes to the build and release system since the 19.0.0 release. The Architecture team were tasked with updating and simplifying the build and release system to ensure that this couldn't happen again (ie, whatever changes are made to the underlying infrastructure, we should always – within reason – be able to reproduce and update old releases). This session is an opportunity to review the plans that were made and the progress towards implementing them.
Community support

John Swinbank

30 minutes

As we move closer to operations, members of both Science Collaborations and the wider scientific community are taking an increasing interest in using our Science Pipelines and other software. We need to be able to provide them with technical support, without imposing an unreasonable burden on our on-project staff. In particular, in May of this year, specific concerns were noted about members of the community using Slack channels which were originally indented for technical discussion on the DM system to ask for technical support.

Providing a coherent approach to support is challenging, given the wide range of interests and skills in the community, limited on project resources, and the need to  provide a system which both supports the construction project now and which fully transitions into the System Performance department's Community Engagement team in the future.

How much progress have we made since May? Do we now have a coherent message on what support we are providing, and through which channels? Have we clearly communicated that message to the leadership of the various science collaborations?

Melissa Graham I  (Leanne) might call on you to join this session 

L3 milestones

John Swinbank

45 minutes

In discussion at the JDR, a couple of issues emerged with L3 milestones:

  • The review recommended that our milestone tracking being more automated / streamlined;
  • Existing milestones being poorly defined (to the extent that the responsible T/CAMs don't know what they mean).

How can we address these?

G3 middleware acceptance 

Robert Gruendl / Yusra AlSayyad

1 hourPresent the criteria which have been developed for Gen3 achieving “feature parity” with Gen2, the associated test plan, and the associated timelines.
Jenkins futures

John Swinbank

30 minutes

The AP team would like to be able to run ap_verify in Jenkins against ticket branches in other packages.

Kian-Tat Lim tells us this would involve a substantial retooling of Jenkins, but that some work in this direction is already in place.

It'd be useful to understand what changes are planned.

(This may be the same as “build system status” above; Kian-Tat Lim and/or Unknown User (gcomoretto) might wish to comment.)

DMTN-148

Jim Bosch & Robert Lupton

30 minutesWe need to work out a way of finally signing off on DMTN-148. Development is assuming it is accepted but it's still technically in limbo.






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