CTA Dev Meeting

513/R-068 (CERN)



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Michael Davis (CERN)
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CTA Dev Meeting
Michael Davis
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    • 3:00 PM 3:10 PM
      CTA Release Workflow 10m
    • 3:10 PM 3:20 PM
      CTA Release Roadmap 10m

      See CTA Release Roadmap

      Release 4.8.3-1

      • Milestones link
      • Release date: 18 Jan
      • Pre-prod deployment date: 18 Jan
      • Prod deployment date: 19 Jan
      • Added counters for profiling high-rate DB queries (MR link)

      Release 4.8.4-1

      • Milestones link
      • Release date: 23 Jan
      • Pre-prod deployment date: 24 Jan
      • Prod deployment date: 25 Jan
      • Will include only the catalogue DB query optimisations resulting from the 4.8.3-1 analysis

      Public Release

      • Latest version available on public repo: v4.7.14-1, v5.7.14-1

      Revised dates of the release 4.8.4-1:

      • Code ready: 23 Jan
      • Stress test: 23 Jan
      • Pre-production: 24 Jan
      • Production: 25 Jan (after discussing in Ops meeting)
    • 3:20 PM 3:30 PM
      CTA dev topics 10m

      Tape server querying DB at very high rate

      • For details check #155 / #Ops-967
      • Solution will be tagged as version v4.8.4-1/v5.8.4-1

      stagerrm issues continued

      • The following issue aggregates all stagerrm related issues: #269
      • It presents them and includes a proposal for tackling the main problems.
      • Proposal to be discussed.

      Manage CI repositories with cta-release code

      • For details check #262

      Free stalled taking too long to transition to desired state

      CTA collaborating on MHVTL development/release

      • [Michael:] Contacted with MHVTL owner.

      "Needs discussion" topics

      "Dev issue needed" topics

      Tape server querying DB at very high rate

      • Improvements by Joao and David should fix this.

      stagerrm issues continued

      • The proposal on #269 has been discussed and accepted.
      • New tickets have been created for development, as well to tackle the dark data issue and *stagerrm* command naming.

      Manage CI repositories with cta-release code

      • For details check #262
      • This was assigned to Jorge.

      Free stalled taking too long to transition to desired state

      • For details check #Ops-972
      • A dev issue was created to use a timeout in the global lock acquisition by the tape server.
      • In addition, we will investigate (by collecting statistics) why the lock duration is long.

      CTA collaborating on MHVTL development/release

      • Jorge will do a pull request with the *flush* related changes. A ticket will also be created to cover this process.

      gRPC integration with CTA frontend

      • Fons is working on it, based on the work that Jacek has developed

      New table for physical library

      • Vlado will review and contribute to the proposal on issue: #276
    • 3:30 PM 3:40 PM
      CTA dev board review 10m


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

      Review unlabelled issues

      • Unlabelled issues list: link

      Review "In progress" issues

      • Full CTA board: link

      Review specific topic

      Usually, there has been no time to cover this part of the meeting.


      The issues should be reviewed before each meeting.

    • 3:40 PM 3:50 PM
      AOB 10m


      • Room 513/R-068 is booked every week, until the EOY, for the CTA dev meeting.