Bug ID 440290: Fluctuating Sync messages when Policy sync is triggered

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
11.4.0, 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

Fixed In:
11.6.0, 11.5.1 HF5, 11.4.1 HF9, 11.4.0 HF6

Opened: Dec 10, 2013
Severity: 3-Major
Related AskF5 Article:
K15227

Symptoms

During some Policy-sync attempts, the SyncStatus flag for the devices keeps toggling and status messages keep changing (In-Sync, Changes Pending, Not All devices are synced, and so on). It can take over 15 minutes for the status messages to stabilize. This might occur when there is a large delay in the Sync requests between devices most likely due to WAN.

Impact

Policy sync is successful. Only the Sync Status flag on the GUI keeps toggling.

Conditions

Geographically distributed devices in the policy-sync device-group where network delay makes the sync infrastructure susceptible to issues like this.

Workaround

None. The fluctuations stop after some time.

Fix Information

APM now prevents the retransmission of policy sync requests that caused status messages to fluctuate.

Behavior Change