Bug ID 498782: Config snapshots are deleted when failover happens

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.3 HF2, 11.4.1 HF9

Opened: Dec 29, 2014
Severity: 3-Major
Related AskF5 Article:


When failover occurs, the config snapshots on the new active node might be deleted during the HA state transition. As a result, a user might encounter one of the errors below: 1. Login failure/denied. 2. Some webtop resources are missing after successful login.


User cannot login or access some resources after login.


When the standby node switches to active.


Restart APD by running the command: bigstart restart apd.

Fix Information

Now APD uses a short time interval for periodic checking of config snapshots right after failover happens. If config snapshots are found to be missing, APD recreates them. After a few such cycles, APD reverts to using a long time interval for the check.

Behavior Change