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  1. Lustre
  2. LU-17481

count all opens in mdt.*.md_stats

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Details

    • Bug
    • Resolution: Fixed
    • Minor
    • Lustre 2.16.0
    • Lustre 2.14.0, Lustre 2.16.0, Lustre 2.15.0
    • None
    • 3
    • 9223372036854775807

    Description

      The mdt.*.md_stats file does not account for open calls in the same way as close calls, because opens are often done via ldlm_enqueue RPCs. However, this is confusing for users and it would be better to account all file open operations in md_stats for monitoring tools to report.

      mdt.lfs02-MDT0000.md_stats=
      snapshot_time             1706046984.267705661 secs.nsecs
      open                      800454448 samples [usecs] 6 449605426 84473621404 8828059919466953498
      close                     1463091136 samples [usecs] 2 3451458 33679892461 484885521899461
      mknod                     44930495 samples [usecs] 26 400110043 31964289397 4829363540133770743
      link                      3637 samples [usecs] 25 117405 676212 18554500846
      unlink                    169387231 samples [usecs] 19 7600061 16143785339 657915431102617
      mkdir                     3355291 samples [usecs] 41 3370485 592315719 87982958065425
      rmdir                     22503874 samples [usecs] 24 5003122 2559393340 28958040491674
      rename                    2725670 samples [usecs] 27 35742943 2096108004 1518201419856972
      getattr                   3859973046 samples [usecs] 0 504898 20718622784 4051941183322
      setattr                   419973866 samples [usecs] 8 38748184 26473058938 14765172506147676
      getxattr                  182191316 samples [usecs] 1 753387 2613080699 41258084724157
      setxattr                  682662 samples [usecs] 7 24636726 245823945 609339268500553
      statfs                    17829630 samples [usecs] 0 5804 338049172 18901482684
      sync                      5445106 samples [usecs] 1 602262 1085691136 24188261051492
      samedir_rename            2546549 samples [usecs] 27 35742943 2007914082 1508290164930046
      parallel_rename_dir       2544215 samples [usecs] 27 35742943 2000374913 1502648298189417
      parallel_rename_file      2334 samples [usecs] 47 1869510 7539169 5641866740629
      crossdir_rename           179121 samples [usecs] 67 3099019 88193922 9911254926926
      

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            ys Yang Sheng
            adilger Andreas Dilger
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              Created:
              Updated:
              Resolved: