Reduce memory footprint

[franTarkenton]

pods started failing recently when they ran out of allocated memory. This happens when the data in the cache grows, which may happen, but is likely an indicator that either events are not getting received/emitted that we are expecting.

Investigate how the startup of the pod / listener checks for cached events to determine if it could be handled in a more memory efficient way.

If so monitor memory utilization of the pod after changes and modify the deployment to use only the amount of memory required.