Pi-hole -- Daily DNS queries do not increase monotonically

Configuration
1

I have a pi-hole running on a raspi 3B+ for our home domain. It works great. I recently added pi-hole as an integration like so:

pi_hole:
  - host: !secret home_pihole_host
    name: Home Pi-hole

I tried to use the associated sensor

sensor.home_pi_hole_dns_queries_today

to track DNS requests, but the number of requests goes both up and down, instead of constantly increasing. See here:

Screen Shot 2020-04-16 at 11.16.03 AM

To the best of my knowledge this sensor is a counter, so I don’t know how DNS requests could go down, but that’s seems to be happening.

Does anyone know more about this? Thanks for any insight.

2

Its over a set period. I think the default may be 24 hours. So each data point is the # of DNS queries over the past 24 hours as an example. So the data is being displayed correctly.

3

Ah, ok. That’s too bad - I would have preferred the counter…