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swan-node-snapshots.md

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Swan Node Snapshots

This guide provides an advanced optimization method for SWAN Node operators looking to expedite their node initialization process. As a complementary resource to the Node Operator guide, snapshots offer a time-saving alternative to full chain synchronization.

Key Components

Hardware Requirements

  • 8-Core CPU
  • Minimum 16 GB RAM
  • Locally attached NVMe SSD
  • Sufficient storage (recommended: 2 * current chain size + snapshot size + 20% buffer)

Prerequisite

  • This tutorial assumes you are familiar with Docker and have it running on your machine.

Running a Swan Node

This tutorial will walk you through setting up your own Swan Node, you can see here: https://docs.swanchain.io/bulders/swan-node

Snapshots

If you're a prospective or current SWAN Node operator and would like to restore from a snapshot to save time on the initial sync, it's possible to always get the latest available snapshot of the Swan chain on mainnet by using the following CLI commands. The snapshots are updated every two weeks.

Snapshot Restoration Process

In the home directory of your SWAN Node, create a folder($SWAN_NODE_DATA). If you already have this folder, remove it to clear the existing state and recreate it. Next, run the following code and wait for the operation to complete.

Init Swan Node configuration

docker run --rm -v $SWAN_NODE_DATA:/opt/swan swanchain254/swan-node-mainnet:latest init

Download the snapshot and untar it

wget https://6ba96e4b2881.acl.swanipfs.com/ipfs/QmUgXvTLggufGisAYgjTEBt3AoJANRFjWdSfCQrpC9gsti -O swanchain_snapshot_2024_11_29_height_2845579.tar.gz

You'll then need to untar the downloaded snapshot and place the $SWAN_NODE_DATA/data/geth/ subfolder

tar -zxvf swanchain_snapshot_2024_11_29_height_2845579.tar.gz -C $SWAN_NODE_DATA/data/geth/

Start Swan node

  • L1RPC URL and L1BEACON

You'll need your own L1RPC URL and L1BEACON URL. This can be one that you run yourself.

  • Run the docker command
docker run -dit --name swan-node --restart=always -v $SWAN_NODE_DATA:/opt/swan -p 8545:8545 -e L1RPC=$L1RPC -e  L1BEACON=$L1BEACON swanchain254/swan-node-mainnet:latest

Confirm you get a response from:

curl -d '{"id":0,"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["latest",false]}' \
  -H "Content-Type: application/json" http://localhost:8545

Check the node sync status

tail -f $SWAN_NODE_DATA/log/geth.log