25.02.1 Custom Sync Server Size Limit (!)

[scottyt]

I have an anki collection that is too large to use with ankiweb, so I started using a docker image to run my own server. However 25.02.1 seems to impose a limit on how large my collection can be, even on my own server. I replicated this error on windows and on Mac. The error in the image would pop up. I can sync fine on 25.02.

[Danika_Dakika]

Hopefully you’ve rolled back to 25.02 so you can keep syncing until this can be addressed.

[DerIshmaelite]

Hey, a bit related, I am suffering from problems as well becuase of my collection size.

Apparently reached Collection Size limit. What now?

Continuation of this discussion

I was asking about custom sync servers. It seems too complicated for me Is this something a layman would be able to do and would you help me

[scottyt]

Sure thing man. I am not some networking expert either haha. One thing to point out: your computer running the server has to be on when you want to sync (if you have a laptop or something). The basic steps are:

1. Set up docker on your computer
2. Set up tailscale on the devices you want to sync
3. Use the readme to set up the anki docker at /docs/syncserver/README.md
4. set MAX_SYNC_PAYLOAD_MEGS=9999999 or whatever you want the limit to be

Your LLM of choice should be able to walk you through the steps in detail. Good luck!

[Kearskon]

I host my own sync server to not burden the public one because of my huge collection. The problem is, as of version 25.02.1 Anki doesn’t check if the server is self-hosted or not, and doesn’t allow me to sync to my own server because of too big collection. This is an oversight.

[Danika_Dakika]

I believe you’re right and hopefully that will be addressed in the next patch. For now, revert to 25.02, or whatever version you were using before.

I’ve flagged this for the developers at Collection-size limit applied when syncing with self-hosted sync server · Issue #3936 · ankitects/anki · GitHub .

[Danika_Dakika]

A fix for this was included in Release 25.02.4 · ankitects/anki · GitHub – but unless you’re in a hurry, you might as well hang on for 25.05 to be released out of beta, because you’ll get a lot of other updates as well.