DUNE UK Computing Meeting, 4 Mar 2024 ===================================== https://indico.fnal.gov/event/63217/ Andrew McNab (AM, chair) Raja Nandakumar (RN) Jon Hays (JH) Chris Brew (CB) Dan Traynor (DT) Wenlong Yuan (WY) Peter Clarke (PC) James Perry (JP) Matt Doidge (MD) Andrew Blake (AB) Introduction and News (AM) ===================== - DC24 finished last week. Eventually successful. - LBNC last week. Computing reviewed. Went well. - Expect PPRP outcome of UK RS&DC very soon: Science Board met last week Kate Richards working on financial preparations and milestones - Consortium developing GitHub Issues/Projects system, using Technical Readiness Levels. Aim to map this into UK reporting in an automated way - OSC last week: stage 1 went well - Discussion about formalising DUNE OpenStack allocation at RAL for central services and interactive development Roundtable ========== Edinburgh --------- - JP: Rucio specific tests on GitHub actions, with fake MetaCat server and DUNE policy package Troubleshooting some problems with date formats in MetaCat - WL: Identified Lancaster xroot door not problem due to upgrade during DC24 Working on dump file list at each RSE for consistency Monitoring work, ultimately for shifters Internal Rucio monitoring Manchester ---------- - AM: Moved justIN to Alma9 containers in advance of DC24 Increased fault tolerance when MetaCat, Rucio, HTCondor are overloaded Added support for multiple HTCondor schedds for scaling Added support for services spread across multiple hosts RAL-PPD ------- - CB: Support for HTCondor during DC24, including increasing resources available to central services Set up second schedd, and in process of getting it authorized with Fermilab Looking at monitoring QMUL ---- Ok Lancaster --------- Ok Data management review ---------------------- WL: UK Storage still at ~same level (3.3 PB) PC: At IRIS RSAP, lack of DUNE use of 100TB tape allocation AOB --- RN: Will follow up DC24 transfers on IPv4 vs IPv6 Next meeting would be Monday 1st April, which is a bank holiday