Bug ID 635257: Inconsistencies in Gx usage record creation.

Last Modified: May 14, 2019

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3,,,,, 11.6.4, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3

Opened: Dec 21, 2016
Severity: 3-Major
Related AskF5 Article:


Duplicate usage records may be created or expected usage records may be missing.


Failure to create usage records. Duplicate usage records will reduce the effective usage records supported per session. Both can result in inconsistencies with billing use cases.


A subscriber session is associated with the following policies: 1. At least 1 PEM policy with multiple rules containing the same usage monitoring key and applicationId or URLcat filter will result in the creation of duplicate usage records. 2. At least 2 PEM policies containing one or more rules with the same MK across policies will result in failure to create expected usage records.


To prevent duplicate usage records, do not create PEM policies with multiple rules that have the same usage monitoring key and applicationId or UrlCat filter. To make sure all expected usage records are created, do not use the same monitoring key across multiple policies for the same subscriber.

Fix Information

Checks to create usage records are now done using the same keys that are used to create them, so there are no duplicate usage records created or expected usage records missing.

Behavior Change