Bug ID 552198: APM App Tunnel/AM iSession Connection Memory Leak

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.0, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 12.0.0 HF3, 11.6.1, 11.5.4 HF2

Opened: Oct 13, 2015

Severity: 3-Major

Related Article: K27590443

Symptoms

A memory leak occurs when APM application tunnels or AM iSession connections are aborted while waiting to be reused.

Impact

Available memory might be significantly reduced when a large number of iSession connections waiting to be reused are aborted.

Conditions

The iSession profile reuse-connection attribute is true. A large number of iSession connections are aborted while waiting to be reused.

Workaround

Disable the iSession profile reuse-connection attribute. Restart TMM.

Fix Information

This release fixes an APM App Tunnel/AM iSession connection memory leak.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips