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  1. Lustre
  2. LU-10176 Data-on-MDT phase II
  3. LU-10181

DoM performance optimization

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Details

    • Technical task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • Lustre 2.12.0
    • 9223372036854775807

    Description

      Various optimization for better DoM performance. So far they are:

      • glimpse ahead. Issue glimpse from MDT in advance and return size on client along with other attributes.
      • read-on-open. Read file data at OPEN and return to the client
      • lock bits convert instead of cancel. It is separate ticket because it is useful for all files, not just DoM.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-13136 (layout.c:2121:__req_capsule_get()) @@@ Wrong buffer for field 'niobuf_inline' (7 of 7) in format 'LDLM_INTENT_OPEN', 0 vs. 0 (server)

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

          New Feature - A new feature of the product, which has yet to be developed. LU-3285 Data on MDT

          • Major - Major loss of function.
          • Resolved

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              tappro Mikhail Pershin
              tappro Mikhail Pershin
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              Dates

                Created:
                Updated:
                Resolved: