Bug ID 420480: Hung flows on chassis using request-queuing in WA.

Last Modified: Jul 12, 2023

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

Known Affected Versions:

Fixed In:
11.4.1, 11.4.0 HF6

Opened: May 03, 2013

Severity: 3-Major


Hung flows (visible from 'tmsh show sys conn | grep -v 127'), a large number of backplane connections in WA (visible from 'tmsh show sys conn'), and a large number of outstanding transactions in WA.


Growing memory usage and decreased capacity. May eventually failover for memory-related issues.


Request queuing enabled on a chassis. This does not affect appliances.


Restart tmm. The memory will not be recovered without a restart. If request queuing is disabled, no subsequent losses will occur.

Fix Information

Improved detection of failed transactions.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips