Nodes are flapping ready/notready unable to send their status

Solution Unverified - Updated -

Issue

  • Nodes are seen NotReady for a couple of seconds
  • multiple errors in the journalctl kubelet form the nodes:
    kubelet_node_status.go:487] "Error updating node status, will retry" [...] http2: client connection lost"

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4
  • F5 load-balancer

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