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Become a Validator

Recommended Hardware Requirements

  • 16 cores \ 32 threads CPU
  • 128 GB RAM
  • 1TB Fast NVMe SSD
  • 1 Gbit/s network connectivity
  • Public IP address

Prerequisites

Before building from source, make sure to install the following prerequisites:

Install Rust

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Install build dependencies:

sudo apt update
sudo apt install build-essential git libssl-dev zlib1g-dev pkg-config clang jq

How To Install

Clone and build the node:

git clone https://github.com/broxus/tycho
cd tycho
git checkout tags/0.0.0 -b mynode
cargo install --path ./cli

Note

Use the latest tag for git checkout

Generate node keys and configs

# --global-config: file path or URL to the network global config
# --stake: stake value per round
tycho init --systemd --global-config ~/global-config.json --validator --stake 30000

Backup keys

  • ~/.tycho/node_keys.json - node keys which are used for the network and validation stuff;
  • ~/.tycho/elections.json - keys and settings of the validator wallet;

Configure ~/.tycho/config.json

  • port - node will listen on this UDP port;
  • storage.root_dir - DB path, you might want to move it to a separate disk partition;
  • metrics.listen_addr - Prometheus exporter will listen on this address;
  • rpc - set it to null to disable an RPC endpoint if you want to save some disk space;

Run validator node

  • Enable tycho services:

    systemctl enable tycho --user --now
systemctl enable tycho-elect --user --now

  • Wait until the node is synced;

    You can check it in metrics or logs. The control server currently doesn't return the sync status. It will be added soon (#395).

  • Send testnet tokens to the validator wallet. The required amount is 10 + 2 * stake.

Note

You can find the wallet address in ~/.tycho/elections.json.

Resync validator node

In case of major updates or fatal failures.

  • Stop node services:

    systemctl stop tycho --user
systemctl stop tycho-elect --user

  • Delete node database:

    # Default db path, can be changed in ~/.tycho/config.json
rm -rf ~/.tycho/db

  • Start services:

    systemctl start tycho --user
systemctl start tycho-elect --user