DNS service not running randomly every few days

[morph13nd]

In raising this issue, I confirm the following: {please fill the checkboxes, e.g: [X]}

• I have read and understood the contributors guide.
• The issue I am reporting can be replicated.
• The issue I am reporting isn't a duplicate (see FAQs, closed issues, and open issues).

How familiar are you with the the source code relevant to this issue?:

1

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Expected behaviour:

I am expecting the pihole DNS server to not fail randomly.

Actual behaviour:

DNS completely fails and I cannot resolve any webpages and the web UI lags when attempting to load it.

Steps to reproduce:

It constantly occurs randomly on its own. I have no control over reproducing it other than what is described later on.

Debug token provided by uploading pihole -d log:

59xx0u927p

Full URL: https://tricorder.pi-hole.net/59xx0u927p

Troubleshooting undertaken, and/or other relevant information:

I have attempted to restart the DNS server and that is all. I have uploaded my results up above as I do not know what to do from here. The issue seems to keep occurring randomly during the week once a week, this just happened 20 minutes ago and the entire network was down. I have a cron job to restart the pi everyday at 3am, which helps it from happening more frequently, otherwise, it happens nearly everyday mid-day, but no guarantee as it is unexpected. Please help.

[volcano4life]

getting the same issues here as well.. now a new one - whenever I hit gravity update on the web interface, the whole service crashes, does not come back online until i reboot the whole VM. When I do pihole -g via terminal, DNS resolution crashes also. DNS service does not start working until I kill the pihole -g command.

[dschaper]

Are you both using cloudflared as an upstream?

[volcano4life]

I definitely am

[dschaper]

Okay, then both of you are. Try not using cloudflared and see if things are more stable.

[volcano4life]

Disabled cloudflare. Just hit gravity update still crashing the DNS service.
Tried pihole -g in terminal - still crashing dns...

[dschaper]

Since this is homunculus39's issue and your issue is different please open a new issue.

[morph13nd]

Are you both using cloudflared as an upstream?

Hey there! Thanks for swinging by to try and help.

I am used cloudflared because it's pretty sexy!.. I really want to continue using it. Before I have been using the standard cloudflare server without cloudflared, there were no problems. I can confirm this.

Is there any way around this? The reason why cloudflared makes this happen?

I can make the Pi-hole reboot more frequently if that's what is needed...

EDIT: Thanks for the speedy response.

EDIT 2: Perhaps instead of rebooting the entire pi-hole, it would be better to restart the cloudflared service when DNS seems to fail? Maybe write a script to check for this condition such as when "DNS service is NOT running" then systemctl restart cloudflared.service?

[dschaper]

cloudflared isn't something we write or maintain. I can't give you any guidance on how to make that package work.

[morph13nd]

cloudflared isn't something we write or maintain. I can't give you any guidance on how to make that package work.

I figured as much... not a problem. I wrote a script to continuously check for server status and upon failure, log and restart cloudflared.

[dschaper]

Closed threads still show up in searches and can still be commented on.

[morph13nd]

Quite honestly just happy that others are experiencing the same issue. Hopefully something can be patched programmatically speaking.

[morph13nd]

Solution to this issue:

https://github.com/themaverick/pihole-patches/tree/master