Bug ID 631286: TMM Memory leak caused by APM URI cache entries

Last Modified: Oct 16, 2023

Affected Product(s):
BIG-IP APM, SWG(all modules)

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3

Fixed In:
14.0.0, 13.1.0.4, 13.0.1, 12.1.3.7

Opened: Dec 01, 2016

Severity: 2-Critical

Symptoms

Tmctl stats for "access_uri_info" gradually grows and can lead to TMM memory exhaustion.

Impact

TMM memory exhaustion.

Conditions

APM or SWG in use.

Workaround

Restart tmm.

Fix Information

This release implements a limit of how many entries the system stores in the URI cache. The default is 2048 entries. The DB variable allows a range of 2048 - 8192. You can the following DB variable to control the max limit: access.max.euie_uri.cache.entries

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips