Bug ID 1031945: DNS cache configured and TMM is unresponsive in 'not ready' state indefinitely after TMM restart or reboot

Last Modified: Oct 04, 2024

Affected Product(s):
BIG-IP Install/Upgrade, TMOS(all modules)

Known Affected Versions:
11.6.5.3, 12.1.6, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 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, 15.1.10.4, 15.1.10.5, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 17.0.0, 17.0.0.1, 17.0.0.2

Opened: Jul 07, 2021

Severity: 2-Critical

Symptoms

Clusterd reports "TMM not ready" right after "Active" Following is an example: Jun 23 18:21:14 slot2 notice sod[12345]: Active Jun 23 18:21:14 slot2 notice clusterd[12345]: Blade 2 turned Yellow: TMM not ready All blades are showing 'unavailable'.

Impact

The system remains inoperative.

Conditions

- Multiple DNS cache-resolver and/or net DNS resolver objects configured with names that are similar with only difference in letter case, for example, /Common/example-dns-cache and /Common/Example-DNS-cache - Issue observed after rebooting or upgrading.

Workaround

- Remove one of the conflicting DNS cache-resolver and/or net DNS resolver objects. or - Rename one of the DNS cache-resolver and/or net DNS resolver objects to a name that does not result in a case-insensitive match to another DNS cache-resolver and/or net DNS resolver object name.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips