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  1. Lustre
  2. LU-8808

Concurrent update during file restore can lead to disordered changelog sequence

Details

    • Bug
    • Resolution: Fixed
    • Minor
    • Lustre 2.10.0
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      In hsm_cdt_request_completed(), upon restore completion, layout lock is returned before associated ChangeLog entry has been created.
      This allows for a timing window where concurrent file updater can take control and create its own ChangeLog out of order (before restore ChangeLog).
      This can puzzle, ChangeLog readers (like RobinHood), and have them think of a wrong file state.

      Attachments

        Activity

          [LU-8808] Concurrent update during file restore can lead to disordered changelog sequence
          pjones Peter Jones made changes -
          Link Original: This issue is related to JFC-10 [ JFC-10 ]
          pjones Peter Jones made changes -
          Link New: This issue is related to LDEV-567 [ LDEV-567 ]
          pjones Peter Jones made changes -
          Link New: This issue is related to LDEV-301 [ LDEV-301 ]
          pjones Peter Jones made changes -
          Link New: This issue is related to JFC-17 [ JFC-17 ]
          pjones Peter Jones made changes -
          Link Original: This issue is related to JFC-19 [ JFC-19 ]
          pjones Peter Jones made changes -
          Fix Version/s New: Lustre 2.10.0 [ 12204 ]
          Resolution New: Fixed [ 1 ]
          Status Original: Open [ 1 ] New: Resolved [ 5 ]
          pjones Peter Jones made changes -
          Link New: This issue is related to JFC-19 [ JFC-19 ]
          mdiep Minh Diep made changes -
          Link New: This issue is related to JFC-10 [ JFC-10 ]
          bfaccini Bruno Faccini (Inactive) made changes -
          Assignee Original: WC Triage [ wc-triage ] New: Bruno Faccini [ bfaccini ]
          bfaccini Bruno Faccini (Inactive) made changes -
          Link New: This issue is related to DDN-344 [ DDN-344 ]
          bfaccini Bruno Faccini (Inactive) created issue -

          People

            bfaccini Bruno Faccini (Inactive)
            bfaccini Bruno Faccini (Inactive)
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            Dates

              Created:
              Updated:
              Resolved: