VMware Telco Cloud Operations 1.4: Rollback issue in Dashboards & Topology explorer

Products

• VMware
• VMware Telco Cloud Operations

Issue/Introduction

Symptoms:

Below are the issues observed when VMware Telco Cloud Operations is upgraded from version 1.3 to 1.4 and followed by a rollback, either due to upgrade failure or an explicit uninstall.

• Dashboard & Reports do not fetch data.
• Topology Explorer tree fails to drill down.

Environment

VMware Telco Cloud Operations 1.x

Cause

• Dashboard & Reports do not fetch data - The configuration changes in Grafana data sources stored in Postgres database for VMware Telco Cloud Operations 1.4 are not reverted during rollback.
• Topology Explorer tree fails to drill down - The schema changes in ArangoDB for VMware Telco Cloud Operations 1.4 are not reverted during rollback.

Resolution

Follow the below steps:

1. Download the attached scripts.tar.gz file.
2. Copy the scripts.tar.gz file to the Control plane node.
3. Execute the command: tar -xzvf scripts.tar.gz
4. Execute the command: cd scripts
5. Execute the command: ./arangodb-rollback-collection.sh
6. Execute the command (not necessary for non-HA setup): ./grafana_rollback.sh