Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-17965

PCC: reopen the PCC copy for fallback file handle

Details

    • Improvement
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      When a file is attaching and copying data from Lustre OSTs to PCC copy, the file is in PCC attaching state. New open and I/O on the same file will fallback to Lustre OSTs.

       

      Once the file finished the PCC attach and valid cached on PCC backend, the new I/O for the fallback file handle is still issuing to Lustre OSTs.

      In this case, we could reopen the PCC copy, and direct the I/O to PCC copy instead.

      Attachments

        Activity

          [LU-17965] PCC: reopen the PCC copy for fallback file handle
          gerrit Gerrit Updater added a comment -

          "Qian Yingjin <qian@ddn.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/56503
          Subject: LU-17965 pcc: reopen PCC copy for fallback file handle
          Project: fs/lustre-release
          Branch: master
          Current Patch Set: 1
          Commit: d646a1b78d01386e093750460631b815d3e0672c

          gerrit Gerrit Updater added a comment - "Qian Yingjin <qian@ddn.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/56503 Subject: LU-17965 pcc: reopen PCC copy for fallback file handle Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: d646a1b78d01386e093750460631b815d3e0672c

          People

            qian_wc Qian Yingjin
            qian_wc Qian Yingjin
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

              Created:
              Updated: