getumbrel
[Feature Request] - Implement Fast Sync (UTXO Set snapshot)
Can Fast Sync be implemented on Umbrel Bitcoin in order to accelerate initial blockchain synchronization and allow users to start using some applications that are fine to use a in this way or when using a pruned node ?
How can UTXO Set snapshot can be implemented or at least be optional on Umbrel Bitcoin web interface to allow the user to choose it specifically in such cases ?
Reference: https://docs.btcpayserver.org/Docker/fastsync/
I would recommend to implement support for AssumeUTXO instead, which will be available for mainnet use starting with Bitcoin Core v28 which should be available some time in October: https://github.com/bitcoin/bitcoin/issues/29891 I expect that BTCPayServer replaces Fast Sync with AssumeUTXO at some point in the future too.
https://blog.lopp.net/bitcoin-node-sync-with-utxo-snapshots/ How do we do this in Umbrel for fast sync and is there any guide ?
Why do you want to use fast sync and not assumeutxo? There is up-to-date documentation on assumeutxo: https://github.com/bitcoin/bitcoin/blob/master/doc/assumeutxo.md and the next bitcoin core release (v29) will allow a mainnet snapshot for 880,000: https://github.com/bitcoin/bitcoin/pull/31969
That sounds a quiet interesting thing to have on Umbrel UX certainly.
https://blog.lopp.net/bitcoin-node-sync-with-utxo-snapshots/ How do we do this in Umbrel for fast sync and is there any guide ?
There is up-to-date documentation on assumeutxo: https://github.com/bitcoin/bitcoin/blob/master/doc/assumeutxo.md and the next bitcoin core release (v29) will allow a mainnet snapshot for 880,000: bitcoin/bitcoin#31969
Steps
- Download the utxo .dat file magnet using qBittorrent
- Copy from utxo880k.dat file in Downloads, paste inside bitcoin data folder
- Go to terminal inside bitcoin docker, execute those commands
- Check troubleshoot for logs and successful chaintip
- Check Bitcoin app to sync from 880000 onwards...!