Bug ID 670044: High Speed Logging can crash TMM on TCP pool member down.

Last Modified: Mar 12, 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, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9

Opened: Jun 20, 2017
Severity: 3-Major

Symptoms

In rare situations TMM can crash when pool member used in High Speed Logging is marked down by a monitor and pending TCP connection handshake completed shortly after.

Impact

Service disruption while tmm recovers. HA failover event. Traffic disrupted while tmm restarts.

Conditions

-- High Speed Logging pool using TCP protocol. -- Pool marked down by monitor while pending TCP connection. -- TCP handshake completes after pool is marked down.

Workaround

None.

Fix Information

None

Behavior Change