[dnsdist] rule-truncate / trunc-success entry in statistics

[thibmac]

• Program: dnsdist
• Issue type: Feature request

Short description

This is a request to add an entry in the dnsdist statistics which how many queries answers were truncated.

Usecase

dnsdist statistic shows how many queries were answered with the truncate bit after it matches a rule.

Description

Dnsdist would count how many queries were answered with the truncate bit because of a rule. This value would be stored in the "rule-truncate" entry.
There is already the same kind of statistics with rule-drop, rule-refused, etc...
trunc-failures also counts how many of these truncated answers failed to deliver, a statistic showing how many queries were successfully truncated would also do the job.

[rgacogne]

Implemented in #9992.