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Cisco Bug: CSCvv03635 - Periodic ICSA sync with Peers leads to CPU spikes due to unnecessary Certificate Synching

Last Modified

Oct 23, 2020

Products (1)

  • Cisco Unified Communications Manager IM & Presence Service

Known Affected Releases

12.5

Description (partial)

Symptom:
High CPU on IM&P Publisher node after reboot or ICSA service restart for a period of time followed by periodic CPU spikes even while the system is idle with no IM client activity.

Conditions:
The High CPU spikes are due to ICSA service kicking off a full blown Certificate Audit Job between the file system and database every time it performs a sync with another Intercluster Peer. This IC peer sync occurs on all other peers after the ICSA services are started up where 2 Peers can be synched in parallel and depending on when they complete the sync, they will run periodically every 30 minutes. Less prolonged but still impactful CPU spikes will occur during every periodic sync with another IC peer.
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