Bug ID 904373: MRF GenericMessage: Implement limit to message queues size

Last Modified: May 29, 2024

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

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3, 15.0.0, 15.0.1,,,, 15.1.0,,,,, 16.0.0,

Fixed In:
16.1.0, 16.0.1,,,

Opened: Apr 27, 2020

Severity: 3-Major


The GenericMessage filter does not have a configurable limit to the number of messages that can be received.


If too many messages are queued, the system may exceed an internal count which could lead to a core.


If a message is waiting for an asynchronous iRule operation during a GENERICMESSAGE_INGRESS or GENERICMESSAGE_EGRESS iRule event, new messages are placed in either the ingress or egress queue. As the number of messages increase, more memory is required.



Fix Information

The existing max_pending_messages attribute of the message router profile is used to limit the size of the queues.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips