Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-14146 Massive directory metadata operation performance decrease
  3. LU-15597

add an LDLM flag to mark lock is saved to avoid extra commit

Details

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

    Description

      On DNE system a write lock held by a transaction will be saved after transaction stop, and once it receives REP-ACK, this lock will be downgraded, however in this period, if a conflicting write lock is enqueued, it should trigger a commit, but if we know this lock is not saved, a "sync" flag can be set to avoid commit, and the commit will be triggered in saving time.

      Attachments

        Activity

          [LU-15597] add an LDLM flag to mark lock is saved to avoid extra commit
          laisiyao Lai Siyao added a comment -

          This is not needed after LU-17003.

          laisiyao Lai Siyao added a comment - This is not needed after LU-17003 .
          gerrit Gerrit Updater added a comment -

          "Lai Siyao <lai.siyao@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/46642
          Subject: LU-15597 mdt: add LDLM_FL_SAVED flag to avoid extra commit
          Project: fs/lustre-release
          Branch: master
          Current Patch Set: 1
          Commit: 8ef84a8aa28ffeef89c092a15758e41b7e5c0a9d

          gerrit Gerrit Updater added a comment - "Lai Siyao <lai.siyao@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/46642 Subject: LU-15597 mdt: add LDLM_FL_SAVED flag to avoid extra commit Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: 8ef84a8aa28ffeef89c092a15758e41b7e5c0a9d

          People

            laisiyao Lai Siyao
            laisiyao Lai Siyao
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: