Bug ID 912425: Modifying in-TMM monitor configuration may not take effect, or may result in a TMM crash

Last Modified: May 29, 2024

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

Known Affected Versions:
14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1

Fixed In:
16.1.0, 16.0.1.2, 15.1.4, 14.1.4.2

Opened: May 28, 2020

Severity: 3-Major

Symptoms

Modification of in-TMM monitors may result in TMM crashing, or the changes to the monitor configuration not taking effect, or only taking effect for some monitor instances.

Impact

Traffic is disrupted while TMM restarts.

Conditions

TMM may crash under some of the following conditions: -- Performing configuration sync -- Deleting and recreating monitor and SSL profile configurations. Changes to monitor configuration may not take effect under the following conditions: -- Modifying the SSL profile assigned to a monitor. -- A monitor instance is currently in progress.

Workaround

Disable in-TMM monitors.

Fix Information

This issue is now fixed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips