TAPE REST API v1

• found ambiguities in the specification while implementing gfal/FTS support
  • restart discussion with storage developers
  • there are implicit assumption in current specification
  • make documentation more clear / add details that were never said explicitly, but with whom everybody most probably agree
• next gfal2 2.21 release comes with TAPE REST v1
• next FTS release comes out also soon, but that one doesn't yet implement TAPE REST functionality
  • this will come later
  • still withing few months
• FNAL is preparing deployment of new dCache branch with TAPE REST
  • dteam VO will be used for test
  • should become available by next BDT meeting

Packet marking

• last week meeting with dCache developers
  • running flowd service will be automatically discovered / used by dCache
  • development necessary on dCache side
    • especially marking start of transfer (end of transfer can be hooked to existing accounting functionality)
    • coordination with WLCG monitoring requirement (similar information is needed)
  • brief discussion about HTTP-TPC extension for packet marking
    • agreement on this proposal
  • it should be clarified if this may be backported in golden release
    • production sites usually hesitate some time before changing major version
• WLCG Packet Marking WG meeting next week Tuesday, June 7, 18:00