Massive memory leak when upgrading from 4.3.2 to 4.8.2

Description

About three weeks ago, I upgraded from 4.3.2 to 4.8.2. Since then, we have seen a massive spike in memory usage, causing the service to run out of memory approximately every week. Otherwise, our memory usage was fairly stable over the last two years.

Server Setup Information

  • Version of Rocket.Chat Server: 4.8.2
  • Operating System: Linux
  • Deployment Method: manual
  • Number of Running Instances: 1
  • DB Replicaset Oplog:
  • NodeJS Version: 14.0.0
  • MongoDB Version: 4.2.12

Any additional Information