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  1. OpenShift Virtualization
  2. CNV-34489

[2246377] VM latency checkup, log: Write failed: io: read/write on closed pipe

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    • cnv-netperf-252 240407
    • Medium

      Description of problem:
      When running a VM latency checkup, I get a warning saying that 'Write failed: io: read/write on closed pipe'.

      Version-Release number of selected component (if applicable):
      $ oc get csv -A | grep virt
      openshift-cnv kubevirt-hyperconverged-operator.v4.14.0 OpenShift Virtualization 4.14.0 kubevirt-hyperconverged-operator.v4.13.4 Succeeded

      $ oc get clusterversion git:(add_checkup_tests|✚4…10⚑31
      NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
      version 4.14.0-rc.6 True False 3d Cluster version is 4.14.0-rc.6

      How reproducible:

      Steps to Reproduce:
      Steps to Reproduce:
      1. Create a VM latency checkup following the steps in the documentation:
      https://docs.openshift.com/container-platform/4.13/virt/support/monitoring/virt-running-cluster-checkups.html#virt-measuring-la[%E2%80%A6]g-cluster-checkups
      2. Check the logs of the pod created by the job.
      3.

      Actual results:
      $ oc logs pod/default-latency-job-1-k8nwc
      — 10.24.171.45 ping statistics —
      5 packets transmitted, 5 packets received, 0% packet loss
      round-trip min/avg/max = 9.635/31.123/81.013 ms
      latency-check-source-d7rdf:~#
      PING 10.24.171.45 (10.24.171.45): 56 data bytes
      64 bytes from 10.24.171.45: seq=0 ttl=64 time=81.013 ms
      64 bytes from 10.24.171.45: seq=1 ttl=64 time=34.014 ms
      64 bytes from 10.24.171.45: seq=2 ttl=64 time=16.417 ms
      64 bytes from 10.24.171.45: seq=3 ttl=64 time=14.536 ms
      64 bytes from 10.24.171.45: seq=4 ttl=64 time=9.635 ms

      — 10.24.171.45 ping statistics —
      5 packets transmitted, 5 packets received, 0% packet loss
      round-trip min/avg/max = 9.635/31.123/81.013 ms
      latency-check-source-d7rdf:~ # ]}
      2023/10/26 11:45:38 ping parser: failed to parse 'time': time: invalid duration "ms"
      2023/10/26 11:45:38 deleting VMI test-checkup-framework/latency-check-source-d7rdf..
      2023/10/26 11:45:38 Write failed: io: read/write on closed pipe
      2023/10/26 11:45:38 read closing down: EOF

      Expected results:

      Additional info:

            ralavi@redhat.com Ram Lavi
            rh-ee-awax Anat Wax
            Nir Rozen Nir Rozen
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              Created:
              Updated: