monero-fastsync

Monero fastsync service

The service provides caching and precalculation for blocks potentially containing particular wallet's transactions. It eases CPU load on mobile devices during synchronization and speeds up blockchain rescan operations.

Structure

The service consists of two components:

• syncer - synchronizes the blockchain with DB
• fsd - serves synchronization requests from wallets

How to run

At first, set up postgresql DB and create database with the following structure.

Download the repo:

go get -u -v github.com/exantech/monero-fastsync/

Build syncer:

go build github.com/exantech/monero-fastsync/cmd/syncer

Make config file from the template, and run it:

./syncer -config /path/to/syncer.yml

Wait until your DB is synchronized with blockchain.

Build fsd:

go build github.com/exantech/monero-fastsync/cmd/fsd

Make config file and run it:

./fsd -config /path/to/fsd.yml

fsd itself has only one endpoint - /fastsync.bin where fastsync clients send requests to. All other requests to monero node are proxied to real node with nginx. Get nginx config template, substitute fastsync and monero nodes urls, place it to /etc/nginx/sites-available, make a symlink:

sudo ln -s /etc/nginx/sites-available/fastsync.conf /etc/nginx/sites-enabled/fastsync.conf

and run:

nginx -t

if it says the config is okay you may reload web server:

sudo service nginx reload

Now you may apply fastsync patch (top commit on patch-v0.13/fastsync) to your monero wallet or get version supporting it and run your wallet. To get fastsync working you need to set up refresh type with console command:

[wallet 53MGew (out of sync)]: set refresh-type fastsync

or in your GUI.