Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP AFM
Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3
Fixed In:
13.1.0, 13.0.1
Opened: Dec 07, 2016 Severity: 3-Major Related Article:
K34214852
In a high availability (HA) environment, MCP usage increases to 100% every 5 minutes on active devices and 65% on standby devices, which can negatively impact GUI performance. This occurs because the autodosd daemon individually syncs each autodos history file every 5 minutes. (The autodosd daemon is a control plane process which supports the BIG-IP AFM DoS Auto Threshold feature.)
Performance of the BIG-IP system can temporarily be impacted.
-- AFM provisioned. -- HA configured.
None.
The system now uses one sync transaction to sync all autodos history files together from active to standby devices every five mins, so the performance impact is avoided.