Bug ID 757464: DNS Validating Resolver Cache 'Key' Cache records not deleted correctly when using TMSH command to delete the record

Last Modified: Sep 13, 2023

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,, 15.0.0, 15.0.1,,,,

Fixed In:
15.1.0,,, 12.1.6,

Opened: Feb 02, 2019

Severity: 3-Major


Attempt to delete a DNS Validating Resolver cache record from the 'Key' cache does not remove the record. Also displays a negative TTL for that record. tmm crash


Undesired behavior due to records not being deleted as instructed. Also negative TTL.


-- Populate the DNS Validating Resolver Cache. -- Attempt to delete a record from the 'Key' cache.


The only workaround is to restart tmm to generate a completely empty DNS cache. Traffic disrupted while tmm restarts.

Fix Information

Fixed an issue preventing records from a DNS Validating Resolver's 'Key' sub-cache from being deleted when utilizing the TMSH command: delete ltm dns cache records key cache

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips