Name: WLCG DOMA BDT Meeting
Start: 2025-04-16T16:00:00+02:00
End: 2025-04-16T17:00:00+02:00
Location: No location set

- 1
  
  News¶
  
  Speakers: Mihai Patrascoiu (CERN), Petr Vokac (Czech Technical University in Prague (CZ))
- 2
  Update to Data Integrity in WLCG Transfers¶
  - Analysis of the current data integrity mechanism used in WLCG transfers
  - Proposal to new standards
  - Proposal to add data integrity in TPC Pull mode.
  Speaker: Hugo Gonzalez Labrador (CERN)
  
  DOMA BDT TPC DATA INTEGRITY.pdf
  
  Timeline of the proposal:
  - Hugo to prepare a 1-2 page summary and/or specification document
  - To be presented at the DOMA-BDT session @ WLCG Workshop 2025
  - Obtain agreement from the involved storage implementors
  - Create tickets for storage systems
  - Revive HTTP-TPC testing suite & adapt for checksum verification
  
  Stephan: Suggest to have a way in the error messages to detect whether the transfer is retryable or not
  
  ---
  Hugo: Would be interesting to find if XRoot has the same TPC problem?
  - Need Xrootd developers to answer this
  ---
  
  Petr: What are dCache and StoRM thoughts on implementing this?
  - Tigran: Agree with the proposal, but cannot give timelines
  
  Communication e-group for future announcements:
  wlcg-doma-bdt@cern.ch
- 3
  
  AOB¶