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EMI-X WN testing from ATLAS

EMI-X WN testing from ATLAS. Simone Campana. We agreed with WLCG that experiments will test ASAP the compatibility of the EMI WNs with the production and analysis frameworks Should focus on EMI-II. EMI-I reported for completeness. ATLAS efforts are summarized in

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EMI-X WN testing from ATLAS

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  1. EMI-X WN testing from ATLAS Simone Campana

  2. We agreed with WLCG that experiments will test ASAP the compatibility of the EMI WNs with the production and analysis frameworks • Should focus on EMI-II. EMI-I reported for completeness. • ATLAS efforts are summarized in • https://twiki.cern.ch/twiki/bin/viewauth/Atlas/MWIntegration • Need to test both prod and analysis, also with direct I/O in some cases • then the SE flavor is important • Few volunteer sites have tested and reported • A particular thanks to UK and IT. ATLAS Computing Coordination promised infinite “gratitude” to participants • Some combinations have been tested and not reported but will soon • Some combinations have not been tested (see later)

  3. Status: • EMI-1/2 against DPM has been validated for Prod and Analysis (we thought) • w/o RFIO direct access: not used at the moment • StoRMvalidated against EMI-1 (in production at CNAF) • EMI-2 under test (queue exists at CNAF) • CASTOR has been validated against EMI-2 at RAL • dCache(and EOS) untested • Not easy to find a site • A bug has been recently reported about a hardcoded timeout in lcg-utils in EMI-2. Needs fixing (not easy to spot in the tests). • Next Steps • Install EMI WN on CVMFS and test from there • then we can also use it in production • we had it as a plan since quite some time • In the meanwhile, if a dCache site is willing to test, please do and report. • SL6 + EMI-II validation is also starting

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