Bug ID 697988: During config sync, if many client-ssl profiles are on a virtual server the CPU may briefly spike to 100%

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(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, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1

Fixed In:
14.1.0, 13.1.1.2

Opened: Dec 07, 2017
Severity: 4-Minor
Related Article:
K34554754

Symptoms

During config sync, if many (hundreds) of client-ssl profiles are attached to a virtual server, the CPU may spike to 100%.

Impact

If enough client-ssl profiles are attached, the watchdog could fire, crashing tmm and causing service disruption. Traffic disrupted while tmm restarts.

Conditions

-- Many (hundreds) of client-ssl profiles are attached to a virtual server. -- Config sync is executed.

Workaround

There is no workaround other than not attaching hundreds of client-ssl profiles to a virtual server, or disabling config sync.

Fix Information

Issue no longer occurs when there are 2000+ client-ssl profiles attached to a virtual server and config sync is executed.

Behavior Change