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Actual Behaviour:
I have my pi-hole hosted on DigitalOcean (extremely firewalled of course). I submitted a ticket to Digital Ocean and of course they said that there was nothing abnormal on their end. Is it normal for pi-hole to have a period of ~10 minutes from 23:50-23:59 of 0 queries? My pi-hole handles 2 sites: my regular office with ~10 PC's and various other internet connected devices & my home office with 1 PC and ~3 internet connected devices. Pi-hole is functioning perfectly and I love the program, it's just alarming that every morning I come in and check the activity on the web interface and find that it appears that pi-hole has gone down for 10 minutes at the same time every night. Is this a normal pi-hole behavior? Or should I press this issue further with Digital Ocean?
Do you expect to have many queries at the time? Are there many queries in the time slots around midnight? You can check the raw logs to see exactly what is happening: /var/log/pihole.log
See attached. I find it a little odd that there are multiple queries both before and after this 10 minute window. I have not checked the raw log as of yet this morning, once I do I will update.
OK. I took a minute and checked the log. It appears as though this may be a bug in the graph? There's plenty of activity going on between 23:50 and 00:00... Funny thing is now that I've opened the log file and inspected, the web interface graph shows correctly.
After watching this for a few more days, I'm convinced that the graph is the issue. The logs show that there is activity happening during this time period, but every day the graph still shows a drop to 0. I've tried reading the log to try and fix it like the other day but it hasn't worked since. I guess we can consider this resolved, but as we all know pretty graphs are pretty.
Yes, that's true. This a bug in FTL caused by a small glitch when interpreting the logs. As FTLDNS does not analyze logs (which are affected by nightly flushing), this problem vanishes altogether.
