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General Overview

General Overview. Functional tests failing due to low res CRL on CERN FTS (fixed) Rqueued errors due to high load at FZK, DESY-ZN (recently disappeared) Chksum errors due to duplicated file production in analysis (fixed in new rucio?)

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General Overview

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  1. General Overview • Functional tests failing due to low res CRL on CERN FTS (fixed) • Rqueued errors due to high load at FZK, DESY-ZN (recently disappeared) • Chksum errors due to duplicated file production in analysis (fixed in new rucio?) • Missing production files (Freiburg), production subscription issue (few) • DE as destination • Total efficiency: 94% (DE 94%) • 939 MB/s throughput • Sites with lower efficiency: FMPHi (56%), IEPSAS (35%), BONN (78%) • DE as source • Total efficiency: 95% (DE 94%) • 717 MB/s throughput • Sites with lower efficiency: + GOEGRID (61%), PSNC (50%) Andrzej Olszewski

  2. General Overview DDM downtimes Andrzej Olszewski

  3. DDM Site Configuration • ATLASGROUPDISK migration and removal • Done at all sites • ATLASHOTDISK: T2s asked to clean space and assign to ATLASDATADISK • Done at all sites • ATLASPRODDISK cleanup after migration to Rucio naming convention • PRODDISK: T2s are asked to remove files and subdirectories of .../atlasproddisk/ and keep only those in .../atlasproddisk/rucio/ and .../atlasproddisk/SAM/ • Remaining: GOEGRID, PSNC Andrzej Olszewski

  4. Dark Data in DE Cloud • Sites with considerable dark data • Just from looking at burricot accounting plots (to be confirmed) • DATADISK: CSCS, PSNC • LOCALGROUPDISK: LRZ, BONN • PRODDISK: GOEGRID (not cleaned), DESY-HH • SCRATCHDISK: most sites • Cleaning • Usually requires consistency checks (srm vs Atlas catalogs) • Currently official scripts not working (incompatiblilities) • Asked Kai to provide compatible srm dump script • Cleaning on SCRATCHDISK • Proposal to clean all files with mod time older than 30 days • Yesterday confirmed by central ddm ops team • FZK, LRZ going to implement this soon • What about other sites? Andrzej Olszewski

  5. XROOTD • FAX: certification phase 1 • https://twiki.cern.ch/twiki/bin/view/AtlasComputing/FAXSiteCertificationP1 • Monitoring testing Rucio file access mode • Sites working fine • CYFRONET, DESY-HH, DESY-ZN, FZK, LRZ, MPPMU, PSNC, FREIBURG • Sites installed but failing tests • GOEGRID, PRAGUE, WUPPERTAL (New N2N needed) • Sites that not installed yet • CSCS, FMPH, IEPSAS, HEPHY Andrzej Olszewski

  6. WebDAV • WebDAV services needed at sites for renaming files to Rucio path convention • ATLAS specific instructions for sites • https://twiki.cern.ch/twiki/bin/viewauth/Atlas/WebDAVSetupForATLAS • Rucio renaming status • Deadline: February 1st • All sites renamed • BONN: manual renaming finishing • WUPPERTAL renaming on LOCALGROUPDISK running Andrzej Olszewski

  7. SQUID • SQUID status • CYFRONET, no backup to Prague (to be fixed soon) • DRESDEN, no backup to CYFRONET • DORTMUND, no squid (WUPPERTAL), no backup (FREIBURG) • GOEGRID, no backup to DESY • HEPHY, no backup to CSCS • PSNC, no squid, only backup to Prague • No tests: LRZ, BONN, MAINZGRID • Red means site goes directly to Frontier and cloud gets a ticket • Solution • Proposal to deploy central Squid backup service at FZK • This would make it easier to keep sites’ access to backup Squid up to date • Avoids negotiations between sites, loss of access after host site reconfiguration Andrzej Olszewski

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