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  1. Lustre
  2. LU-13395

unable to set "--comp-flags=prefer" on a new file

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: Lustre 2.13.0, Lustre 2.14.0
    • Fix Version/s: None
    • Labels:
      None
    • Severity:
      3
    • Rank (Obsolete):
      9223372036854775807

      Description

      It is not possible to set "--comp-flags=prefer" in the default or regular file layout since patch https://review.whamcloud.com/33784 "LU-10070 lod: SEL: Layout sanity checking" landed in commit v2_12_55-84-g4eca26ddab.

      The function "llapi_layout_sanity_cb()" is imposing a false constraint that LCME_FL_PREF_RW cannot be set on non-FLR files:

      /* The component flags can be set by users at creation/modification time. */
      #define LCME_USER_COMP_FLAGS    (LCME_FL_PREF_RW | LCME_FL_NOSYNC | \
                                       LCME_FL_EXTENSION)
      :
                     if (args->lsa_flr) {
                             if (comp->llc_flags & ~LCME_USER_COMP_FLAGS)
                                     args->lsa_rc = LSE_FLAGS;
                     } else {
                             if (comp->llc_flags & ~LCME_FL_EXTENSION)
                                     args->lsa_rc = LSE_FLAGS;
                     }
             }
      

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              Assignee:
              wc-triage WC Triage
              Reporter:
              adilger Andreas Dilger
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                Dates

                Created:
                Updated:
                Resolved: