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Validator Node

Running a validator node in the 0G ecosystem means actively participating in the network's security and consensus through the Proof-of-Stake (PoS) mechanism. As a validator, you'll validate transactions, propose new blocks, and earn rewards for your contribution to the network's integrity and decentralization.

Starting Your Node​

1. Clone the Validator Node Repo:

git clone https://github.com/0glabs/0g-chain.git

2. Build and Start the Docker Node:

cd 0g-chain
docker build -f Dockerfile-node -t 0g-chain-validator .
docker run -d --name 0g-chain-validator -p 26656:26656 -p 26657:26657 -e GOGC=900 -e GOMEMLIMIT=40GiB 0g-chain-validator

Recommended on Garbage Collection for Pruning Nodes: To maximize sync speed for validators and other network providers that are running pruning nodes, the above settings are recommended. GOGC=900 instructs golang to start garbage collection when heap has grown to 9x, and GOMELIMIT=40GB ensures garbage collection runs whenever memory usage reaches 40GB.

Registering Your Validator​

3. Acquire Testnet Tokens: Obtain testnet tokens from the 0G faucet by entering your Node Operator ECDSA public key on our website or by requesting on Discord. These tokens are necessary for staking and becoming a validator. Make sure you have the corresponding ECDSA private key for importing into the validator node.

4. Registering Node Operator Account: Once you have the tokens, register your node operator account by putting in your ECDSA private key. This step would prompt you to choose and enter a passphrase.

# Import an existing key
docker exec -it 0g-chain-validator 0gchaind keys unsafe-import-eth-key <key_name> <private_key>

5. Become a Validator: Register your node as a validator on the 0G network, specifying your stake amount, commission rates, and other important parameters.

docker exec -it 0g-chain-validator 0gchaind tx staking create-validator \
--amount=<staking_amount>ua0gi \ 
--pubkey=$(docker exec -it 0g-chain-validator 0gchaind tendermint show-validator) \
--moniker="<your_validator_name>" \ 
--chain-id=zgtendermint_16600-2 \
--commission-rate="0.10" \
--commission-max-rate="0.20" \
--commission-max-change-rate="0.01" \
--min-self-delegation="1" \
--from=<key_name> \ 
--gas=auto \
--gas-adjustment=1.4

Note: Only the top 125 staked validators will be active.

Remember​

  • Stay updated with the latest testnet information and announcements on our socials and blog posts.
  • Reach out to us on Discord or to the community for support if you encounter any issues.

Troubleshooting​

If you encounter any issues during the setup or operation of your validator node, please consult our FAQ section or reach out to our community support channels.

Next Steps​

After successfully setting up your validator node, consider exploring the following:

Thank you for contributing to the security and decentralization of the 0g network!