insufficient space on disk for database about syncthing-macos

[acolomb]

The error message is pretty clear about the cause. It's not a bug I'd say. The database might not be big in itself, but Syncthing has a setting to avoid filling up the disks, so it will stop with said error when the free space goes below a certain threshold. That's usually set to 1 percent of the volume size (the one the Syncthing database resides on).

Free up space or reduce that setting to a lower percentage to fix the problem. No need to reset the database.

See https://docs.syncthing.net/users/config.html#config-option-options.minhomediskfree, under advanced configuration in the GUI.

[xor-gate]

Thanks for this clarification @acolomb. I didn't know about this. It is configurable from the web gui -> Actions -> Settings -> Minimum Free Disk Space.

[xor-gate]

You could try the following:

1. Stop Syncthing from the tray
2. Open Terminal application
3. Execute /Applications/Syncthing.app/Contents/Resources/syncthing/syncthing --reset-database
4. Execute /Applications/Syncthing.app/Contents/Resources/syncthing/syncthing --reset-deltas
5. Start Syncthing application again
6. Open the web interface and see if it re-indexes

[nudefireninja]

Thank you! I found out that the free space on the machine was indicated as 100 GB in Finder, but a huge chunk of that was purgeable space which is supposed to be freed up automatically when needed. I used DaisyDisk to force purge it and then Syncthing started working again.