Restart of the snmp service takes a long time and snmp is not listening on configured port

Products

• VMware Cloud Director

Issue/Introduction

• SNMP has been configured according to the documentation Configuring Your VMware Cloud Director Appliance SNMP Agent.
• Restart of the snmp service using the following command takes a long time:

service snmpd restart

• SNMP is not listening on port 161 when checked using the following command:

ss -tuln | grep 161

• Running the command "rpm -qa" returns no output.

Environment

Cloud Director 10.5.1

Cause

This issue can occur if the rpm database is damaged.

Resolution

1) Perform a backup of Cloud Director as outlined here.

2) To rebuild the rpm database run the following command on the impacted cell.

rpm --rebuilddb

3) Restart the snmp service

service snmpd restart

4) Validate the snmp configuration.

vicfg-snmp -s

5)  Validate the snmp is listening on port 161.

ss -tuln | grep 161