RHEL6.4: mountstats on a NFSv4.1 client mount do not include pNFS READ/WRITE statistics

Solution Unverified - Updated -

Issue

  • mountstats on a NFSv4.1 client mount do not include pNFS READ/WRITE statistics. For example, on a non-pNFS mount point, in mountstats output we see the following statistics when we do WRITEs, but on pNFS mount point it is missing:
WRITE:                                                                                             
    100 ops (87%)   0 retrans (0%)  0 major timeouts                                               
    avg bytes sent per op: 4284 avg bytes received per op: 68
    backlog wait: 0.010000  RTT: 296.380000     total execute time: 296.440000 (milliseconds)

Environment

  • Red Hat Enterprise Linux 6.4
  • pNFS (NFSv4.1)

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