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Darwinia and Crab Network Database Snapshot

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Bear Wang edited this page Aug 30, 2023 · 16 revisions

Darwinia provides the node database snapshots for node maintainers. It enables maintainers to download the latest snapshot, unarchive, and start a node instantly without syncing from block zero.

Available Snapshots

The number in the file names indicates the block height of the snapshot. For example, the block number of snapshot darwinia2-883924.tar.zst is 883924.

Usage

  1. Install zstd:

    # Debian, Ubuntu
apt install zstd
# CentOS, Rad Hat
dnf install zstd
# Arch Linux
pacman -S zstd

  2. Download the snapshot archive and extract:

    Copy the snapshot archive URL from https://snapshots.darwinia.network (Darwinia Network) or https://snapshots.crab.network (Crab Network). Always choosing the latest snapshot with the highest block number is strongly recommended.

    wget -c https://snapshots.darwinia.network/darwinia-xxxx.tar.zst # the snapshot URL
tar xv --zstd -f darwinia-xxxx.tar.zst -C /path/to/chain-dir # Or tar xv -I zstd -f darwinia-xxxx.tar.zst -C /path/to/chain-dir

    It's worth noting that /path/to/chain-dir depends on two factors: 1) the node CLI option --base; 2) the chain name. For example, assume with --base /data, the chain dirs for networks are:

    • Darwinia Network: /data/chains/darwinia
    • Crab Network: /data/chains/crab

  3. Run the validator (optional):

    If you want to use the snapshot to initialize a validator node, please notice that the node CLI options --unsafe-pruning and --pruning=xxx are required since the database format of the snapshots are not "archived". For example, to run a darwinia validator:

    darwinia --validator --unsafe-pruning --pruning=15000

Thanks To

https://polkashots.io/

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