Kdump integration is enabled for host 'XYZ', but kdump is not configured properly on host

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Virtualization (RHEV) 3.x
  • Red Hat Virtualization (RHV) 4.x

Issue

Getting the below message in RHEV Portal, while activating a host:

Kdump integration is enabled for host 'XYZ', but kdump is not configured properly on host

Resolution

The Host need to be reinstalled in order to push new Kdump integration configuration. Please switch the host to Maintenance Mode, then Right-Click and select Installation->Reinstall.

If the Host is the first and only Self-Hosted Engine Host, a second host needs to be deployed. Once the Hosted-Engine VM is migrated to the second host, the first host can be moved to Maintenance Mode and reinstalled.

Specifically, to determine if the Host has Kdump configured or not RHV-M checks the host's /etc/kdump.conf contains the configurations below:

fence_kdump_nodes rhv-m-server-ip-address
fence_kdump_args -p 7410 -i 5

During a host Reinstallation, the same configurations above are pushed to the host and the kdump service is restarted to reload the configuration.

Root Cause

  • As stated in the Documentation, the Host needs to be re-installed once Kdump Integration is enabled.

Diagnostic Steps

  • Check the status of listener service on RHV-M
# systemctl status ovirt-fence-kdump-listener
  • Check the host's /etc/kdump.conf contents for:
fence_kdump_nodes rhv-m-server-ip-address
fence_kdump_args -p 7410 -i 5
  • Ensure the host's kdump service is running.

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