Bug ID 538603: TMM core file on pool member down with rate limit configured

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 12.0.0

Fixed In:
12.1.0, 12.0.0 HF1, 11.6.1, 11.5.4

Opened: Aug 07, 2015
Severity: 3-Major
Related AskF5 Article:
K03383492

Symptoms

TMM may produce a core file when attempting to retry to calculate the rate-limit on a pool member that has gone down.

Impact

Traffic disrupted while tmm restarts.

Conditions

This occurs when the following conditions are met: - service-down-action reselect. - rate limit specified. - traffic load balanced to pool members. - traffic is over the rate for all pool members. - all pool members go down.

Workaround

Remove rate-limit configuration.

Fix Information

TMM no longer produces a core file when attempting to retry to calculate the rate-limit on a pool member that has gone down.

Behavior Change