• Rough draft
  • 2023-01-05 Meeting Notes

     Date

    Jan 5, 2023

     Participants

    • @James Walder

    • @Ian Johnson

    • @Emmanuel Bejide

    • @Thomas, Jyothish (STFC,RAL,SC)

    • @Alison Packer

    • @Thomas Byrne

    • Glasgow:

    • Lancs: Matt, Steven

     Goals

    • List of Epics

    • New tickets

    • Consider new functionality / items

    • Detailed discussion of important topics

    • Site report activity

     

     Discussion topics

    Open Epics

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    Jira Issues not within an Epic

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    https://stfc.atlassian.net/jira/software/c/projects/XRD/boards/26/roadmap

    Item

    Presenter

    Notes

     

    Item

    Presenter

    Notes

     

    Space reporting

     

    Draft document for ceph admin prepared; use ceph-dev-gw2 for testing with Alice. Plan to attempt a test framework

     

    https://stfc.atlassian.net/browse/XRD-54

    Simultaneous reads of a single file use the same “FD / XrdOssFile” instance. This causes problems - for example with ATLAS Full simulation tasks - especially for Glasgow.

     

    https://stfc.atlassian.net/browse/XRD-30

     

    Return to looking at the potential for stability issues related to the code surrounding the cluster setup in XrdCeph

     

    https://stfc.atlassian.net/browse/XRD-53

     

    Should be considered urgent.

     

     

    Vector reads

     

    To catch up with Alex on studies that he’s been performing (ask to present here), and identify the plan to mitigate / solve this issue.

     

    tokens testbed

     

    Request for new VM made.

     

     

    CMSD

     

    Finalise the configuration for pre-prod nodes and run tests (TBD) (with existing setup).
    Get the VMware for CMSD configured and again run tests.

     

    Checksumming improvements

     

    Build client / server rpms, and discuss with ceph team about testing this configuration. Some further tests in pre-prod also needed.

     

    EL8 rpms

     

    Build new releases for EL7/EL8; improve building infrastructure (CI)

     

     

     

    GGUS:

    Deletion problem at RAL

    Slow stat calls at RAL

    Problem accessing some LHCb files at RAL

    Site reports

    •  

     Action items

     

     Decisions