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  1. Lustre
  2. LU-14146 Massive directory metadata operation performance decrease
  3. LU-15526

PDO lock for object on remote MDT

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    • Technical task
    • Resolution: Fixed
    • Minor
    • Lustre 2.16.0
    • None
    • None
    • 9223372036854775807

    Description

      If object is on remote MDT, PDO lock is not supported, because two locks can't be fetched in one RPC right now, once the batch processing framework is ready, these two locks can be enqueued in a batch. This will greatly reduce conflicts in parent lock, and improve remote directory creation/unlink performance. Since filesystem-wide default directory layout is set by default, this will speed up mdtest directory creation/unlink test.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-14761 DNE2 Metadata degradation

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. LU-17157 conf-sanity test_70e: SoC enabled on single MDS

          • 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-17075 replay-dual test_16 ZFS MDS crash: osd_declare_destroy() ASSERTION(dt_object_exists)

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

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              laisiyao Lai Siyao
              laisiyao Lai Siyao
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                Updated:
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