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High CPU on waagent on Azure Gateway Technical Level
Symptoms
  • High CPU on Azure Gateways.
  • Error in waagent.log: "ERROR HostGAPlugin: Exception Put VM status: [000009] HostGAPlugin: Failed PageBlob clean-up: 503, Service Unavailable,"
  • Random VPN failures due to lack of resources.
  • Cluster failovers on Azure HA clusters caused by missing processed CCP packets.
  • waagent, python, or fw_full process take up 100% CPU on the Gateway.
Cause

The Microsoft Azure Linux Agent (waagent) is attempting to upgrade the waagent or is attempting to install a Linux extension to the CloudGuard for Azure Virtual Machines (Gateway, High Availability, VMSS, Management, MultiDomain Server).


Solution
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