Aria Operations Upgrade Failure due to Remote Collectors in Cluster

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

The following Error was reported during Pre-upgrade validation:
"Validation Failed.  At least one Remote Collector found.  Replace all Remote Collectors with generic Cloud Proxies."

In Aria Operations Product UI, there is no existing Remote Collector.  However, in the Aria Operations Admin UI, the Cloud Proxy page shows an existing Remote Collector.

Environment

Aria Operations 8.10

Aria Operations 8.12

Aria Operations 8.14

Cause

Remote Collector was removed via UI but there are still references to the RC's in the casa.db.script file.

Resolution

1. Take the cluster offline and restart the Aria Operations appliances from the vCenter UI as per the Shutdown and Startup sequence for Aria Operations cluster
2. Bring the cluster back online and log back in to Admin UI to see if the Remote Collector is removed.
   
   If the node is still present, proceed with the final step below.
3. Update  casa.db.script and remove the Remote Collector entry.
   
   
   1. SSH into the Aria Operations Primary node.
   2. Stop CASA service with the following command:
      
      systemctl stop vmware-casa
      
      
   3. Make a copy of and then edit the casa.db.script.
   4. Locate and remove the Remote Collector record from the casa.db.script.  Remove the entire Remote Collector Entry. Save the update.
   5. Restart CASA service with the following command:
      
      systemctl start vmware-casa
      
      
   6. If the cluster has more than one Analytic node, perform steps 1-3 on all the nodes.
   7. Log in to Aria Operations Admin UI and verify that the Remote Collector is no longer displayed on the UI.

Additional Information

Remote Collector is no longer supported on Aria Operations 8.16 and above.  Remote Collector needs to be removed and replaced with stand along Cloud Proxy in order to be able to upgrade existing 8.14 and below releases.