Bug ID 778517: Large number of in-TMM monitors results in delayed processing

Last Modified: Nov 07, 2022

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,, 15.0.0, 15.0.1,,,,

Fixed In:

Opened: May 01, 2019

Severity: 3-Major

Related Article: K91052217


A monitor may continue to probe for a while after it has been removed from pool / member / node. Duplicate monitor instances may get created after associating a monitor to a server.


-- Monitor target may appear down when responding correctly. -- Monitor may continue to run after removed from pool / member / node. -- Increased monitoring load on server.


Device has a large number of in-TMM monitors.


Disable in-tmm monitors: tmsh modify sys db bigd.tmm value disable

Fix Information

Large numbers of in-TMM monitors are processed in a timely fashion.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips