Ceph/CVMFS/Filer Service Meeting

600/R-001 (CERN)



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    • 14:00 14:05
      CVMFS 5m
      Speaker: Enrico Bocchi (CERN)
      • bbp.epfl, na{49,61,62}.cern.ch migrated to a more powerful VM (still SLC6)
      • projects.cern.ch migrated to CC7
      • cvmfs-server-2.6.0 installed on sft-nightlies.cern.ch


      • cvmfs-server-2.6.1 has a bugfix for GC on na61.cern.ch. To be installed on the RM
      • RQF for new repo atlas-online-nightlies: CC7+S3 (no gateway)


      • lemon to collectd
      • review of RM configuration as per Jakob's comments
      • upgrade campaign to 2.6.0
      • review puppt manifest + split cvmfssrv
    • 14:05 14:10
      Ceph Upstream News 5m

      Releases, Tickets, Testing, Board, ...

      Speaker: Dan van der Ster (CERN)
    • 14:10 14:15
      Ceph Backends & Block Storage 5m

      Cluster upgrades, capacity changes, rebalancing, ...
      News from OpenStack block storage.

      Speaker: Theofilos Mouratidis (National and Kapodistrian University of Athens (GR))


      • Ceph gabe: moved all data from default root to incoming root. (This moves all data off of filestore and onto Bluestore, and changes the crush tunables at the same time).
        • It has gone much more smoothly than expected!
        • Progressing ~20% per day -- 15% left.
        • Tuning:
          • ceph tell osd.* injectargs -- --osd_max_backfills=4 --osd_delete_sleep=2 --osd_target_transaction_size=15
      • Beesly:
        • Cluster is still quite imbalanced, but balancer doesn't find more changes. 12.2.12 might help, but more importantly we need to continue PG splitting. Currently at 5300 pgs -- heading slowly to 8192.
      • CEPH-701 ceph/gabe: zap then recreate old filestore osds
      • CEPH-702 Add RJ35/RJ37 to ceph/flax
    • 14:15 14:20
      Ceph Disk Management 5m

      OSD Replacements, Liaison with CF, Failure Predictions

      Speaker: Julien Collet (CERN)


      • Improved disk replacement scripts to include cephwigner
    • 14:20 14:25
      S3 5m

      Ops, Use-cases (backup, DB), ...

      Speakers: Julien Collet (CERN), Roberto Valverde Cameselle (Universidad de Oviedo (ES))


      • RQF1262152: the user is unable to test our patched rgw (12.2.11 0.7). I propose we upgrade all the rgw's and let him test.
        • If any problems, we roll back to v12.2.11 0.6.


      • CEPH-697: everything ready to contact the users, will proceed today
    • 14:25 14:30
      CephFS/Manila/FILER 5m

      Filer Migration, CephFS/Manila status and plans.

      Speaker: Dan van der Ster (CERN)
    • 14:30 14:35
      HPC 5m

      Performance testing, HPC storage status and plans

      Speakers: Alberto Chiusole (Universita e INFN Trieste (IT)), Pablo Llopis Sanmillan (CERN)
    • 14:35 14:40
      HyperConverged 5m
      Speakers: Jose Castro Leon (CERN), Julien Collet (CERN), Roberto Valverde Cameselle (Universidad de Oviedo (ES))
    • 14:40 14:45
      Monitoring 5m
    • 14:45 14:50
      AOB 5m
      • Alberto last day Weds.
      • Dan absent Thursday until 29 Apr.


      • Meeting with UNIGE on Friday (Similar to the one with French Ministere de l'Interieur)
        • On the move to switch to Ceph, asked for advices
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