CTA Dev Meeting

Friday 30 Jun 2023, 15:00 → 16:30 Europe/Zurich

513/R-068 (CERN)

Michael Davis (CERN)

15:00 → 15:10 CTA Release Roadmap

Release 4.8.10-1

• Release date: 12/06
• Pre-prod deployment date: 14/06
• Prod deployment date: 15/06
• Prod catalogue update date: 23/06
• Milestone link
• Pure catalogue release 13.0
• Fixes deployment issue: code compatible with catalogue versions <= 13.0

Public Release

• Latest version available on public repo: v4.8.7-1, v5.8.7-1

15:10 → 15:20 CTA dev topics

Option to remove fflush in mhvtl code

• Issue link: #283

Apply unified code style / formatting

• Issue link: #98

Rework catalogue release procedure and deployment path

• Issue link: #397

Schema verify fails for postgres in catalogue v13

• Issue link: #402
• New package version 4.7.10-2, or 4.8.0-1 (pivot)?

Modifications to eos evict/stagerrm command

• Issue link: #278

Refactor RDBMS functions for catching SQL exceptions

• Issue link: #401

Keep cta-taped alive if at least one drive handler is alive

• Issue link: #303

[Ops] Repacks failing because of open denied

• Issue link: #Ops-1101

[Ops] Increase the repack expanding limit from 2 to 10

• Issue link: #Ops-1100

"Needs discussion" topics

• Issues link

"Dev issue needed" topics

• Ops issues link

Option to remove fflush in mhvtl code

• Julien will repackage the changes done by Mark in MHVTL, and test them.
• If it works fine then we can ask Mark to tag it. We will no longer need to use a homebrew version.

Apply unified code style / formatting

• Vova will talk with the Gitlab team at CERN to see if they can push for the support of .git-blame-ignore-revs in gitlab.

Rework catalogue release procedure and deployment path

• Joao will come up with a detailed plan on how we will automatically check which versions of the Catalogue are supported by the code.
• We will use the pivot version vX.Y.0-k for catalogue releases.
• Julien suggested that we configure in Cmake what are the catalogue versions compatible with a certain pivot release. This would be checked during pivot versions.

Schema verify fails for postgres in catalogue v13

• We will fix this and tag as 4.7.10-2

Modifications to eos evict/stagerrm command

• The changes are done, and approved by the team.
• Next steps: Merge eos evict to EOS / Fix operational tools (including FST GC) / remove eos stagerrm

Refactor RDBMS functions for catching SQL exceptions

• Lasse will test the changes that he proposed only with the new catalogue physical library table.
• We will then review this. If everything is good, we will adopt the strategy for other parts of the code.

[Ops] Repacks failing because of open denied

• We need to create a new dev ticket that makes repack rm remove all old files.
• For the lock problem (probably due to xrootd), Julien will ask David if he can take a look.

[Ops] Increase the repack expanding limit from 2 to 10

• We will add this as a configuration to the tape server config file.
• The default value should be kept as 2.

CMS usage of eos archive to eosctacms

• Something like cta-admin invalidate cache should allow us to avoid restarting the frontend and alert all eoscta operators on things like that.
• Changing the values should also invalidate the cache (although this only works for the current cta frontend).

15:20 → 15:30 dCache Integration

AOBs

15:40 → 15:50 AOB

AOBs

15:50 → 16:00 CTA dev board review

Objective

• Look at the active issues in our CTA dev board.
• Decide if they should be kept, removed, reassigned, prioritised, etc.