Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-10911 FLR2: Erasure coding
  3. LU-12669

EC: recover data from parity code

Details

    • Technical task
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 9223372036854775807

    Description

      For an EC file, when certain number (less and equal than the corresponding parity code stripe number) data stripes are not available, the read IO will recover the missing data by reading other data and parity code of the same recovery group.

      Attachments

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-19066 FLR2: identify rack/PSU failure domains for servers

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Activity

            [LU-12669] EC: recover data from parity code
            gerrit Gerrit Updater added a comment -

            "James Simmons <jsimmons@infradead.org>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/51493
            Subject: LU-12669 ec: restore unavailable data
            Project: fs/lustre-release
            Branch: master
            Current Patch Set: 1
            Commit: 8226a01cf1e9598312e98cc47bc03d7b6ec7fa76

            gerrit Gerrit Updater added a comment - "James Simmons <jsimmons@infradead.org>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/51493 Subject: LU-12669 ec: restore unavailable data Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: 8226a01cf1e9598312e98cc47bc03d7b6ec7fa76
            gerrit Gerrit Updater added a comment -

            Bobi Jam (bobijam@hotmail.com) uploaded a new patch: https://review.whamcloud.com/38076
            Subject: LU-12669 ec: restore unavailable data
            Project: fs/lustre-release
            Branch: flr
            Current Patch Set: 1
            Commit: be07d4c9e81480bfb6f1c19fef4006cfaf4c239a

            gerrit Gerrit Updater added a comment - Bobi Jam (bobijam@hotmail.com) uploaded a new patch: https://review.whamcloud.com/38076 Subject: LU-12669 ec: restore unavailable data Project: fs/lustre-release Branch: flr Current Patch Set: 1 Commit: be07d4c9e81480bfb6f1c19fef4006cfaf4c239a

            People

              wc-triage WC Triage
              bobijam Zhenyu Xu
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated: