This was caused due to the following reasons :
- The Pulse Clients were sending data even without receiving instructions from PCS.
- CAV traffic from higher number of end-points will load the web process causing performance issues.
CAV requests are identified in user access logs as below requests, do confirm if we see high number of such requests to match issue :info - [x.x.x.x] - System()[][] - 2020/03/24 04:15:50 - NODE-3 - Unauthenticated request url /api/v1/cav/client/status came from IP x.x.x.xNOTE : To log unauthenticated requests, we need to enable below settings :