Bug ID 774225: mcpd can get in restart loop if making changes to DNSSEC key on other GTM while the primary GTM is rebooting

Last Modified: Dec 13, 2023

Affected Product(s):
BIG-IP DNS(all modules)

Known Affected Versions:
13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 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, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3

Fixed In:
16.0.0

Opened: Apr 18, 2019

Severity: 3-Major

Symptoms

mcpd is in a restart loop after creating an internal DNSSEC FIPS key on a secondary GTM while rebooting the primary DNSSEC key generator GTM (gtm.peerinfolocalid==0).

Impact

mcpd is in a restart loop.

Conditions

New DNSSEC internal FIPS key is created and assigned to DNSSEC zone when BIG-IP system with gtm.peerinfolocalid==0 is down.

Workaround

For maintenance window operations, set DNSSEC peer leader to the unit that will remain UP while rebooting the primary key generator in sync group (gtm.peerinfolocalid==0). # tmsh modify gtm global-settings general peer-leader <gtm-server-name> After the reboot is complete, all devices are back up, and everything looks good in the configs, clear the peer-leader setting: # tmsh modify gtm global-settings general peer-leader none If there are two GTM units: GTM1 (having gtm.peerinfolocalid == 0), GTM2, and you are going to reboot GTM1, then before rebooting, run the following command to configure the DNSSEC peer-leader setting: # tmsh modify gtm global-settings general peer-leader GTM2 After reboot, clear the peer-leader setting: # tmsh modify gtm global-settings general peer-leader none

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips