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  1. Lustre
  2. LU-10176 Data-on-MDT phase II
  3. LU-10280

DoM cross-file open+readahead via statahead

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    Details

    • Type: Technical task
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Labels:
    • Rank (Obsolete):
      9223372036854775807

      Description

      Using the statahead mechanism, the client should detect if files are being looked up in directory order and then opened + read. If that is the case, the client could start doing open+read RPCs in advance to fetch the DoM data to the client.

      We'd have to have a mechanism (timeout?) to close the pre-opened files if the application stopped this access pattern, or the statahead pattern was stopped.

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              Assignee:
              wc-triage WC Triage
              Reporter:
              adilger Andreas Dilger
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                Created:
                Updated: