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  1. Lustre
  2. LU-13503

allow setting larger max_mod_rpcs_in_flight dynamically

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.14.0, Lustre 2.12.6
    • None
    • None
    • 9223372036854775807

    Description

      Currently, an error is reported if mdc.*.max_mod_rpcs_in_flight is set larger or equal to mdc.*.max_rpcs_in_flight. However, it makes more sense to allow the user to set max_mod_rpcs_in_flight directly, and just increase max_rpcs_in_flight appropriately, rather than returning an error and telling the user to do that instead.

      Also, during mount config parameter processing, there may be a race between MDC setup and config log handling, so allow max_mod_rpcs_in_flight to be temporarily increased, and then it will be reduced later to the server value when the OCD information is handled.

      Attachments

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-14145 protect cli->cl_import with with_imp_locked()

          • 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-16454 can't set max_mod_rpcs_in_flight > 8

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-14144 get and set Lustre module parameters via "lctl get_param/set_param"

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

          Activity

            [LU-13503] allow setting larger max_mod_rpcs_in_flight dynamically
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-16454 [ LU-16454 ]
            yujian Jian Yu made changes -
            Resolution New: Fixed [ 1 ]
            Status Original: Reopened [ 4 ] New: Resolved [ 5 ]
            yujian Jian Yu made changes -
            Link New: This issue is related to LU-14145 [ LU-14145 ]
            yujian Jian Yu made changes -
            Link New: This issue is related to LU-14144 [ LU-14144 ]
            jhammond John Hammond made changes -
            Link New: This issue is related to DDN-1641 [ DDN-1641 ]
            adilger Andreas Dilger made changes -
            Summary Original: allow setting larger mdc.*.max_mod_rpcs_in_flight New: allow setting larger max_mod_rpcs_in_flight dynamically
            pjones Peter Jones made changes -
            Link Original: This issue is related to JFC-17 [ JFC-17 ]
            pjones Peter Jones made changes -
            Link New: This issue is related to JFC-20 [ JFC-20 ]
            pjones Peter Jones made changes -
            Labels Original: LTS12
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.12.6 [ 14707 ]

            People

              yujian Jian Yu
              adilger Andreas Dilger
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              Dates

                Created:
                Updated:
                Resolved: