Guide to Setting Up a 0g Validator Node

This guide will help you set up a 0g validator node based on the documentation available.

Step 1: Hardware Requirements

Memory: 64 GB
CPU: 8 cores
Disk: 1 TB NVME SSD
Bandwidth: 100 MBps for Download/Upload

Step 2: Set Server Timezone to UTC

Step 3: Install 0gchaind

git clone -b v0.2.3 https://github.com/0glabs/0g-chain.git
./0g-chain/networks/testnet/install.sh
source ~/.profile

Step 4: Set Chain ID

0gchaind config chain-id zgtendermint_16600-2

Step 5: Initialize Node

0gchaind init <your_validator_name> --chain-id zgtendermint_16600-2

Step 6: Copy Genesis File

sudo apt install -y unzip wget
rm ~/.0gchain/config/genesis.json
wget -P ~/.0gchain/config https://github.com/0glabs/0g-chain/releases/download/v0.2.3/genesis.json
0gchaind validate-genesis

Step 7: Add Seed Nodes

Edit $HOME/.0gchain/config/config.toml and add the following seeds:

seeds = "81987895a11f6689ada254c6b57932ab7ed909b6@54.241.167.190:26656,010fb4de28667725a4fef26cdc7f9452cc34b16d@54.176.175.48:26656,e9b4bc203197b62cc7e6a80a64742e752f4210d5@54.193.250.204:26656,68b9145889e7576b652ca68d985826abd46ad660@18.166.164.232:26656"

Step 8: Start Node

0gchaind start

Step 9: Optimize Garbage Collection

export GOGC=900
export GOMEMLIMIT=40GB
0gchaind start

Step 10: Create Validator

0gchaind keys add <key_name> --eth
0gchaind keys unsafe-export-eth-key <key_name>
0gchaind tx staking create-validator \
  --amount=<staking_amount>ua0gi \
  --pubkey=$(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
0gchaind q staking validators -o json --limit=1000 | jq '.validators[] | select(.status=="BOND_STATUS_BONDED")' | jq -r '.tokens + " - " + .description.moniker' | sort -gr | nl

Step 11: Unjail Validator (if necessary)

0gchaind tx slashing unjail --from <key_name> --gas=500000 --gas-prices=99999neuron -y

Step 12: Upgrade Node (if needed)

Reset data if upgrading to a breaking version:

Restart the node:

rm $HOME/.0gchain/config/addrbook.json $HOME/.0gchain/config/genesis.json
0gchaind tendermint unsafe-reset-all --home $HOME/.0gchain

Step 13: Migrate Node (if necessary)

Recover wallet account on the new server:

0gchaind start

Transfer the following files to the new server:

$HOME/xx.address
$HOME/xx.info
$HOME/keyhash
$HOME/config/priv_validator_key.json

Ensure the node is synced to the latest block height before migration.

For detailed information and updates, refer to the official 0g documentation.

Carbon-12