Bug ID 652792: When BIG-IP is used on an appliance with over 24 CPU cores (or VE on a HW platform with over 24 CPU cores) some processes may be constantly restarting until disabled.

Last Modified: Nov 07, 2022

Affected Product(s):
BIG-IP APM(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

Fixed In:

Opened: Mar 22, 2017

Severity: 2-Critical


urldb may be constantly restarting on a BIG-IP appliance that has over 24 CPU cores.


URLDB functionality will not be accessible to the users.


-- BIG-IP appliance has over 24 CPU cores or BIG-IP Virtual Edition (VE) platform has over 24 CPU cores. -- APM is provisioned.


If URLDB functionality is not required - disable process by running 'bigstart stop urldb'. If urldb functionality is needed: 1. Stop urldb by running "bigstart stop urldb'. 2. Modify file '/etc/bigstart/scripts/urldb' as follows: a) Replace line: cpu_count=$(get_number_cpu) with line: tmm_count=$(get_tmm_count) b) Replace line: exec /usr/sbin/${service} -n ${cpu_count} with line: exec /usr/sbin/${service} -n ${tmm_count} 3. Save the file, and restart the process by running 'bigstart start urldb'.

Fix Information

urldb no longer restarts when used on a platform with over 24 CPU cores and under 64 CPU cores.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips