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  1. Lustre
  2. LU-13920

HSM: hsm_actions are not processed after MDS failover

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Details

    • Bug
    • Resolution: Fixed
    • Major
    • Lustre 2.14.0
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      After each MDS failover following message could be seen:

      (mdt_coordinator.c:1116:mdt_hsm_cdt_start()) lustre-MDT0000: cannot take the layout locks needed for registered restore: -2

      This error means that coordinator doesn't process hsm_actions list after failover.
      In several words the problem is caused by the race config llog processing during MDS mount. Config params that causes to start coordinator and handle hsm_actions list is processed before MDD that initializes hsm llog(mdd_prepare->mdd_hsm_actions_llog_init).

      Above error message could be seen after sanity-hsm_407 that does MDS failover.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-14399 mount MDT takes very long with hsm enable

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-13651 Conditionally skip finding compatible HSM requests

          • Major - Major loss of function.
          • Resolved

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              scherementsev Sergey Cheremencev
              scherementsev Sergey Cheremencev
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                Updated:
                Resolved: