Bug ID 745405: Under heavy SSL traffic, sw crypto codec queue is stuck and taken out of service without failover

Last Modified: Oct 28, 2019

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1

Fixed In:
15.0.0, 12.1.5

Opened: Sep 27, 2018
Severity: 3-Major

Symptoms

Under heavy SSL traffic, it is observed that sw crypto codec queue is stuck and taken out of service, but no failover happened

Impact

Traffic is impacted and a large number of SSL handshakes to the BIG-IP are failing.

Conditions

Heavy SSL traffic

Workaround

Increase crypto.queue.timeout to a much larger number(from 100 to 500 for example). Restart tmms for the change to take effect.

Fix Information

None

Behavior Change