Description of problem:

I'm build a multi-component Serving and Eventing demo and discovered that the ODC will hang or freeze when I create a complex topology with triggers and KSVC.

Prerequisites (if any, like setup, operators/versions):

I am running this in RHPDS Training 2 node (m5a.4xlarge) 4.6 workshop so this is OCP 4.6.3 with 1.12 Serverless Operator installed. I am running as cluster admin.

Browser is Chrome running on Mac Catalina

Steps to Reproduce

triggerproblem.sh

The problem is very reproducible when a KSVC that has a trigger is deleted. I have attached a script that can be executed to build out the demo elements and at the end of the script  delete a KSVC. I have padded the script with sleep to make sure the component revisions are available on my system, but your build performance will vary. 

Apologies, due to the S2I git source builds the script will take a few minutes to complete.

Actual results:

At the end of the script the topology render will freeze or end up showing the pulsing "..." if refreshed. If you then go and delete the dangling trigger (via oc or UI) the topology starts working again. 

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Always. 

In fact there are 3 triggers in the script so you should be able to delete another KSVC with Trigger and repeat the problem again without re-running the script

Build Details:

Additional info: