Bug ID 670709: ping_access_agent process may silently restart when BIG-IP VE is installed on appliance with over 24 CPU cores

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0

Opened: Jun 23, 2017
Severity: 3-Major
Related Article:
K14321598

Symptoms

ping_access_agent service constantly restarts on BIG-IP VE when physical appliance has over 24 CPU cores.

Impact

ping_access_agent may restart continuously.

Conditions

- BIG-IP is installed as VE - Hardware on which VE is installed has 24 or more CPU cores.

Workaround

Modify /etc/bigstart/scripts/ping_access_agent file as follows: Existing last line: exec /usr/sbin/${service} -n ${cpu_count} Replacement last line, where A is a number of running TMMs: exec /usr/sbin/${service} -n A For example, when the BIG-IP VE is running 8 TMM processes, use the following example: exec /usr/sbin/${service} -n 8

Fix Information

The BIG-IP system now limits the number of ping_access_agent worker threads to the number of running TMMs. Therefore, the process no longer unexpectedly restarts when running on an appliance with a large number of CPU cores.

Behavior Change