Bug ID 748558: Under unlikely circumstances, TMM hangs and is terminated by the failover daemon

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 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

Fixed In:
15.0.0

Opened: Nov 02, 2018
Severity: 2-Critical

Symptoms

TMM hangs and subsequently is terminated by sod.

Impact

Failover occurs. TMM goes into a loop, and after 10 seconds, it's killed by sod. After it restarts, the system comes back online and can pass traffic. However, if the same conditions recur, the failover happens again. The frequency of the failover recurrence depends on the traffic.

Conditions

-- Payload manager is used. -- Another profile (e.g., rewrite) on an HTTP virtual server needs unchunked payload for processing. Note: Although this is an unlikely set of conditions, it can occur, depending on the traffic you have.

Workaround

None.

Fix Information

Rectified the problem so that TMM is no longer hanging.

Behavior Change