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  1. Lustre
  2. LU-11104

rename under striped directory may cause deadlock

Details

    • Bug
    • Resolution: Fixed
    • Critical
    • Lustre 2.12.0
    • None
    • 3
    • 9223372036854775807

    Description

      In rename locking, there are two situations we need to lock target
      parent before source parent:
      1. source parent is subdir of target parent.
      2. source and target parents are both stripes of the same directory,
      and stripe index of source parent is after that of target parent.

      But the check for the second situation is missing, which may cause
      deadlock if another thread is taking stripe locks of their parent.

      Attachments

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-6297 Move rename is_subdir check from MDD to MDT

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

          Bug - A problem which impairs or prevents the functions of the product. LU-4911 Using wrong attr inside mdd_is_subdir

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

          Bug - A problem which impairs or prevents the functions of the product. LU-11082 stuck threads on MDS

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

          Activity

            [LU-11104] rename under striped directory may cause deadlock
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-6297 [ LU-6297 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-4911 [ LU-4911 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-804 [ DDN-804 ]
            pjones Peter Jones made changes -
            Labels Original: LTS dne2 New: dne2
            adilger Andreas Dilger made changes -
            Labels Original: DNE2 LTS New: LTS dne2
            pjones Peter Jones made changes -
            Link Original: This issue is related to JFC-26 [ JFC-26 ]
            pjones Peter Jones made changes -
            Link Original: This issue is related to JFC-19 [ JFC-19 ]
            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 JFC-26 [ JFC-26 ]
            pjones Peter Jones made changes -
            Link New: This issue is related to JFC-17 [ JFC-17 ]

            People

              laisiyao Lai Siyao
              laisiyao Lai Siyao
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              Dates

                Created:
                Updated:
                Resolved: