Bug ID 512378: Changing per request policy in the middle of data traffic can cause TMM to crash

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1 HF1, 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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.6.0 HF5

Opened: Mar 14, 2015

Severity: 3-Major

Related Article: K16853

Symptoms

Changing per request policy while BIG-IP serving the user requests can cause TMM to restart. This makes the TMM services unavailable until TMM is back.

Impact

Traffic disrupted while tmm restarts.

Conditions

Administrator has to change the per-request policy while TMM serving user requests.

Workaround

Change per-request policy in planned scheduled maintenance window where there is no user traffic expected.

Fix Information

TMM does not crash and administrator can change per-request policy any time now.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips