During Nutanix VM event base discovery, we see thousands of "ASYNC: Discovery - Sensors" jobs running in short interval processing results from "Nutanix VM Event" patterns leading to DB CPU spikes and DB contentions.
Release or Environment
During patching intervals, thousands of VMs are being recycled. This generates thousands of VM Events which subsequently triggering thousands of Horizontal Discovery. The discovery is fast but due to sheer # of discovery results needed to be processed, this leads to DB contention on ServiceNow leading to performance degradation.
Development team is currently looking for options to enhance this feature to reduce # redundant discoveries and handling VM events better. If necessary, Customer can turn off the "Nutanix-Events-job" scheduled job and let the regular Nutanix Serverless discovery schedule discover the VMs.