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  1. Lustre
  2. LU-12025

Adding OST may cause EIO - delay activation of new OSTs on existing filesystem

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Lustre 2.13.0, Lustre 2.12.4
    • Labels:
      None
    • Severity:
      3
    • Rank (Obsolete):
      9223372036854775807

      Description

      During OST addition,
      1. MDT gets configuration refreshment first.
      2. Then MDT get create request from the client, might allocate the object the new OST, then reply to the client.
      3. If client does not refresh its configuration yet, then do I/O with the EA, it might get EIO because it does not know the OST.

      So it probably needs add version to the config log to avoid this happen.

      This happens quite often in cloud environment. though not sure if there is duplicate ticket already.

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              • Assignee:
                adilger Andreas Dilger
                Reporter:
                di.wang Di Wang
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                Dates

                • Created:
                  Updated:
                  Resolved: