Scale up of RHOCP 4 nodes fails with "Host will stop trying to register; cluster cannot accept new hosts in its current state" in Assisted Installer

Solution Verified - Updated -

Issue

  • Scaling of worker nodes fails with below error in RHOCP 4 using Assisted Installer:
level=info msg="Motherboard serial number is unknown" file="machine_uuid_scanner.go:102"
level=warning msg="No valid motherboard serial, using system UUID instead" file="machine_uuid_scanner.go:139"
level=warning msg="Host will stop trying to register; cluster cannot accept new hosts in its current state" file="register_node.go:35" request_id=xxx-xxx-xxx

Environment

  • Red Hat OpenShift Container Platform(RHOCP) 4
  • Assisted Installer

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