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  1. Lustre
  2. LU-8043

MDS running lustre 2.5.5+ OOM when running with Lustre 2.8 GA clients

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Cannot Reproduce
    • Affects Version/s: Lustre 2.5.5
    • Fix Version/s: Lustre 2.5.5
    • Labels:
      None
    • Environment:
      Cray clients running unpatched lustre 2.8 GA clients. Server side running Lustre 2.5.5 with a patch set in a RHEL6.7 environment.
    • Severity:
      3
    • Rank (Obsolete):
      9223372036854775807

      Description

      Today we performed a test shot on our smaller Cray Aries cluster (700 nodes) with a non-patched lustre 2.8 GA client specially build for this system. The test were run against our atlas file system which is running a RHEL6.7 distro with the lustre version 2.5.5 with patches. During our test shot while running an IOR single shared file test across all nodes with the stripe count of 1008 the MDS server ran out of memory. I attached the dmesg output to this ticket.

        Attachments

        1. mylog.dk.gz
          4.50 MB
        2. vmcore-dmesg.txt
          454 kB

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              • Assignee:
                bzzz Alex Zhuravlev
                Reporter:
                simmonsja James A Simmons
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                Dates

                • Created:
                  Updated:
                  Resolved: