Pi-hole suddnly slowing down/unresponsive

Expected Behaviour:

Pi-hole should be blocking DNS querries and acting as the DHCP server for all clients on the network.

Actual Behaviour:

Pi-hole suddenly kicks every single clinet from the network, no device able to gain an IP and then it causes High CPU and I/O Delay. and even wen a device is able to gain an IP DNS resolution is either slow or nothing is resolved at all.

Thia happens every morning around 7-8 AM and a restart of the Pi-hole LXC is required to have it return to normal behavior

Debug Token:

https://tricorder.pi-hole.net/e14bRgiX/

bumping this as it's been 18 days

Please upload a new Debug Token URL.

Sorry I was a bit busy, here you go

https://tricorder.pi-hole.net/LL4oDi9t/

I'm seeing the same problem

Clients are reporting "temporary failure in name resolution" or NXDOMAIN

I have two piholes in round-robin mode

Debug below

https://tricorder.pi-hole.net/zC2t9QNr/
https://tricorder.pi-hole.net/G9qCNrK6/

After weeks of research I found a Reddit thread talking about database issues on migrations from v5 to v6 and so I went through the logs for FTL and found database locked errors that happen every mornig and at random times.

I did a backup and deleted the database hoping this would resolve the issues but it kept happening so I I exported my settings and other necessary data via the teleporter and then deleted pihole completely.

installed a fresh install of v6 and imported my settings and data.

been running this for one week and so far it's stable with no issues.

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