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  1. Lustre
  2. LU-1122

MDS got LBUG after upgrade from 1.8.7-RHEL5 to 2.1.55-RHEL6 and then downgrade to 2.1.0-RHEL6

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: Lustre 2.2.0
    • Fix Version/s: Lustre 2.2.0
    • Labels:
      None
    • Severity:
      3
    • Rank (Obsolete):
      6449

      Description

      Before upgrade,the system configuration is one MDS(1.8.7-RHEL5), two OSS(1.8.7-RHEL5 and 2.1.0-RHEL6) and two clients(1.8.7-RHEL5 and 1.8.7-RHEL6), then upgrade servers and clients to 2.1.55-RHEL6, check the system, works fine. Then do the downgrade, MDS downgrade to 2.1.0-RHEL6, OSS downgrade to 1.8.7-RHEL5 and 2.1.0-RHEL6, clients downgrade to 2.1.0-RHEL5 and 2.1.0-RHEL6

      Got LBUG when checking the dir/files in the OST pool. MDS console log please see the attached.

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              • Assignee:
                bobijam Zhenyu Xu
                Reporter:
                sarah Sarah Liu
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                Dates

                • Created:
                  Updated:
                  Resolved: