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  1. Lustre
  2. LU-12198

lnetctl peer show hangs for ~2600 clients, ioctl getting E2BIG

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: Lustre 2.12.0
    • Fix Version/s: Lustre 2.14.0, Lustre 2.12.5
    • Labels:
      None
    • Environment:
      x86 servers, 2.12 no patches, RHEL 7.6
    • Severity:
      3
    • Rank (Obsolete):
      9223372036854775807

      Description

      command `lnetctl peer show` appears to hang, strace shows looping on:

      ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x65, 0x64, 0xb8), 0x7fffffffccf0) = -1 E2BIG (Argument list too long)
      

      There are 2605 lines in /sys/kernel/debug/lnet/peers.

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              Assignee:
              martinetd Dominique Martinet (Inactive)
              Reporter:
              ruth.klundt@gmail.com Ruth Klundt
              Votes:
              1 Vote for this issue
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              10 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: