Health check vCenter unreachable: Could not resolve FQDN

Products

• VMware Integrated OpenStack

Issue/Introduction

• Health check connectivity alerts like:

| connectivity | Alarms:2 | 1. vCenter unreachable: | | 1. Check LDAP Certificate |
| | Skipped:3 | vcenter.vio.local | | expiry status 2. Check vCenter |
| | Passed:6 | 2. Could not resolve FQDN: | | Certificate expiry status 3. |

• Ping from Manager resolves vCenter FQDN
• nslookup resolves vCenter FQDN (uses UDP)
• Openstack is functioning normally

Environment

7.2

Cause

The connectivity check script uses dig +TCP  (Use TCP when querying name servers)

Resolution

Addressed in 7.3

Workaround:

Add an entry in /etc/hosts with the details of the FQDN for vCenter to have the issue resolved temporarily.

Additional Information