Name: DOMA / TPC Meeting
Start: 2021-03-17T16:00:00+01:00
End: 2021-03-17T17:05:00+01:00
Location: No location set

- 16:00 → 16:10
  
  Network data challenges: ESCAPE tools 10m
  
  Speaker: Rizart Dona (CERN)
  
  Leveraging ESCAPE monitoring & testing tools for the WLCG data challenges.pdf
- 16:10 → 16:20
  SRM+HTTP tape access 10m
  
  Speakers: Mihai Patrascoiu (CERN), Petr Vokac (Czech Technical University (CZ))
  TAPE Testbed
  
  Available tape endpoints: INFN-T1 (StoRM), BNL (dCache 6.2)
  
  All disk storage implementation (dCache, DPM, Echo, EOS, StoRM, XRootD)
  
  Rucio DOMA RSE name: TAPE_"site"_"implementation"_{TAPE,DISK}
  
  FTS (fts3-devel)
  
  necessary config updates
  
  TURL_3RD_PARTY_PROTOCOLS=https;gsiftp;root
  
  this will come together with new gfal that use integrated SciTokens "library"
  
  right now it is possible to use fts3-devel-next which is already configured
  
  TESTS
  
  Functional Test TAPE
  
  every hour transfer 1GB file from / to each site (rule removed after 4 days)
  
  basic transfer monitoring in Kibana
  
  full debug info in fts3-devel logs (direct link from Kibana page)
  
  (currently doesn't work for tapes - require FTS configuration update)
  
  What kind of tests we would like to see to be confident for switching production instances to SRM+HTTP?
  
  Do we want to include fraction or all ATLAS & CMS TAPE endpoints?
  
  Fraction is sufficient to be sure Rucio -> FTS -> gfal -> SRM+HTTP chain works
  
  Quite a lot of communication would be necessary to include all TAPEs
- 16:20 → 16:30
  
  Future uniform tape access 10m
  
  Speakers: Oliver Keeble (CERN), Paul Millar
- 16:30 → 16:45
  Experiments production 15m
  
  Speakers: Alessandra Forti (University of Manchester (GB)), Diego Davila Foyo (Univ. of California San Diego (US)), Petr Vokac (Czech Technical University (CZ))
  ATLAS
  
  Status: 51 / 77 (T0&T1&T2)
  
  all T0+T1 except RAL
  
  40% data volume transferred with HTTP-TPC (15-20% with TAPE that can't be move yet)
  
  EOS ATLAS back with HTTP-TPC
  
  works fine except for one site GGUS:151000
  
  weird CentOS7 libcurl behavior for KEK CA
  
  NSS error -8054 (SEC_ERROR_REUSED_ISSUER_AND_SERIAL)
  
  GGUS:150896 StoRM site with Lustre backend and STOR-932
  
  does anybody knows if `du --bytes --summarize /path/to/storage` is usable?
  
  how long does it take to walk through 10M directories with 10M files using `du`?
  
  few seconds? more?
  
  we expect updates at least every hour - it should be cheap
  
  did not we discussed configurable script for StoRM?
  
  Storage issued tokens validity vs. X509 proxy/voms expiration
  
  I guess it is OK to obtain (restricted) token which can be valid for longer time
  
  dCache - ignore proxy & voms expiration, max lifetime 168H (rejects request with longer validity)
  
  DPM, EOS, XRootD - ignore proxy & voms expiration, max lifetime 24H (requests with longer validity capped)
  
  StoRM use voms extension lifetime and ignore proxy expiration
- 16:45 → 16:55
  
  Token Authorization testbed 10m
  
  Speakers: Andrea Ceccanti (Unknown), Andrea Ceccanti (Universita e INFN, Bologna (IT))
- 16:55 → 17:00
  
  http and xrootd protocol news 5m
  
  Speakers: Brian Paul Bockelman (University of Nebraska Lincoln (US)), Wei Yang (SLAC National Accelerator Laboratory (US))
- 17:00 → 17:05
  
  AOB 5m

DOMA / TPC Meeting

ATLAS