After upgrade to Plesk Obsidian warnings appeared about high SWAP usage

Symptoms

• After upgrading to Plesk Obsidian SWAP utilization alerts are shown:
  

• Utilization can be seen in Grafana by navigating to Advanced Monitoring > Memory:
  

• SWAP memory is configured according to What are recommended requirements of SWAP, RAM and Disk space for Plesk Onyx

Cause

Swap Memory alerts in the Advanced Monitoring system (Grafana) are configured to alert when swap memory is utilized more than 80% by default. 

Resolution

1. Log in to Plesk
2. Navigate to Advanced Monitoring > Settings > Monitoring - Memory
3. Modify the value or turn off the alert: