Bug ID 632388: Sync all autodos history files from active to standby units every 5 mins

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP AFM(all modules)

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

Symptoms

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.)

Impact

Performance of the BIG-IP system can temporarily be impacted.

Conditions

-- AFM provisioned. -- HA configured.

Workaround

None.

Fix Information

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.

Behavior Change