Add internal stats

[Mzack9999]

Please describe your feature request:

Add internal dns stats to track errors and time spent

• For each request we should add a trace functionality with hookup for most common events
• Number of errors for resolvers
• RoundTrip for resolvers
• Optionally implement a smart functionality that gives priority to the most responsive resolvers and lowers the usage of faulty ones

[calab33p]

Hi, what is the status of this? I would find this functionality useful myself as well. Is this just pending lint errors? Happy to jump in and help this get pushed if that would help.

[Mzack9999]

@calab33p I've added some more details to the task and added it to our next sprint. Feel free to add more details if you think any functionality is missing or can be improved. Thanks!