Installation

Validators play a critical role in Empeiria's testnet by securing the network and validating transactions, thereby ensuring the integrity and reliability of data. In this section, you will find essen

# Hardware requirements

CPU	RAM	Storage	Bandwidth
16 cores	16GB	2TB (SSD recommended for better speed)	Up / Down 100Mbps, Fixed Public IP

1. Update & install dependencies

sudo apt update && sudo apt upgrade -y
sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu gcc git jq htop tmux chrony liblz4-tool -y

2. Install Go

cd $HOME
VER="1.22.2"
wget "https://golang.org/dl/go$VER.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$VER.linux-amd64.tar.gz"
rm "go$VER.linux-amd64.tar.gz"
[ ! -f ~/.bash_profile ] && touch ~/.bash_profile
echo "export PATH=$PATH:/usr/local/go/bin:~/go/bin" >> ~/.bash_profile
source $HOME/.bash_profile
[ ! -d ~/go/bin ] && mkdir -p ~/go/bin
go version

3. Set Vars

MONIKER=JosephTran
echo "export MONIKER=$MONIKER" >> $HOME/.bash_profile
echo "export TITAN_CHAIN_ID="titan-test-2"" >> $HOME/.bash_profile
echo "export TITAN_PORT="41"" >> $HOME/.bash_profile
source $HOME/.bash_profile

4. Download Binary

cd $HOME
git clone https://github.com/Titannet-dao/titan-chain.git
cd titan-chain
go build ./cmd/titand
cp titand /usr/local/bin

5. Config and Init app

titand init $MONIKER --chain-id $TITAN_CHAIN_ID
sed -i -e "s|^node *=.*|node = \"tcp://localhost:${TITAN_PORT}657\"|" $HOME/.titan/config/client.toml
sed -i -e "s|^keyring-backend *=.*|keyring-backend = \"os\"|" $HOME/.titan/config/client.toml
sed -i -e "s|^chain-id *=.*|chain-id = \"titan-test-2\"|" $HOME/.titan/config/client.toml

6. Download Genesis file

rm /root/.titan/config/genesis.json
sudo wget -O /root/.titan/config/genesis.json https://vps4.josephtran.xyz/titan/genesis.json

7. Config Seeds and Peers

SEEDS="[email protected]:26656"
PEERS="[email protected]:53456,[email protected]:29656,[email protected]:35656,[email protected]:53456,[email protected]:26656,[email protected]:26656,[email protected]:53456,[email protected]:26656,[email protected]:56346,[email protected]:26656,[email protected]:29656,[email protected]:35656,[email protected]:53456,[email protected]:26656,[email protected]:26656,[email protected]:53456,[email protected]:53456,[email protected]:53456,[email protected]:53456,[email protected]:28956,[email protected]:53456,[email protected]:53456,[email protected]:53456,[email protected]:26656,[email protected]:44656,[email protected]:35656,[email protected]:53456,[email protected]:26656,[email protected]:26656,[email protected]:26656,[email protected]:26656,[email protected]:29656,[email protected]:26656,[email protected]:26656,[email protected]:26656,[email protected]:56346,[email protected]:26656,[email protected]:29656,[email protected]:26656,[email protected]:29656,[email protected]:26656,[email protected]:29656,[email protected]:26656,[email protected]:26656,[email protected]:35656,[email protected]:35656,[email protected]:26656,[email protected]:35656,[email protected]:53456,[email protected]:35656"
sed -i -e "s/^seeds *=.*/seeds = \"$SEEDS\"/; s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.titan/config/config.toml
sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.00025uttnt\"/" $HOME/.titan/config/app.toml
sed -i -e 's|^indexer *=.*|indexer = "null"|' $HOME/.titan/config/config.toml
sed -i 's|^prometheus *=.*|prometheus = true|' $HOME/.titan/config/config.toml

8. Config Pruning

pruning="custom"
pruning_keep_recent="100"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.titan/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.titan/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.titan/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.titan/config/app.toml

9. Set custom port

sed -i.bak -e "s%:1317%:${TITAN_PORT}317%g;
s%:8080%:${TITAN_PORT}080%g;
s%:9090%:${TITAN_PORT}090%g;
s%:9091%:${TITAN_PORT}091%g;
s%:8545%:${TITAN_PORT}545%g;
s%:8546%:${TITAN_PORT}546%g;
s%:6065%:${TITAN_PORT}065%g" $HOME/.titan/config/app.toml
sed -i.bak -e "s%:26658%:${TITAN_PORT}658%g;
s%:26657%:${TITAN_PORT}657%g;
s%:6060%:${TITAN_PORT}060%g;
s%:26656%:${TITAN_PORT}656%g;
s%^external_address = \"\"%external_address = \"$(wget -qO- eth0.me):${TITAN_PORT}656\"%;
s%:26660%:${TITAN_PORT}660%g" $HOME/.titan/config/config.toml

10. Create service file

sudo tee /etc/systemd/system/titand.service > /dev/null <<EOF
[Unit]
Description=titan-testnet
After=network-online.target

[Service]
User=root
ExecStart=$(which titand) start --home root/.titan
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

cd $HOME
if curl -s --head https://vps4.josephtran.xyz/titan/titan_snapshot.lz4 | head -n 1 | grep "200" > /dev/null; then
  echo "Snapshot found, downloading..."
  aria2c -x5 -s4 https://vps4.josephtran.xyz/titan/titan_snapshot.lz4 -o titan_snapshot.lz4
  if [ $? -eq 0 ]; then
    echo "Download complete, extracting..."
    lz4 -dc titan_snapshot.lz4 | tar -xf - -C $HOME/.titan
    if [ $? -eq 0 ]; then
      echo "Snapshot downloaded and extracted successfully."
    else
      echo "Failed to extract snapshot."
    fi
  else
    echo "Failed to download snapshot."
  fi
else
  echo "No snapshot found."
fi

Enable and start

sudo systemctl daemon-reload
sudo systemctl enable titand
sudo systemctl start titand && sudo journalctl -fu titand -o cat

# Check status

titand status | jq

titand status | jq '{ latest_block_height: .sync_info.latest_block_height, catching_up: .sync_info.catching_up }'

*You will have to wait a while until it syncs for "catching_up": false

# Block sync left

while true; do 
  local_height=$(titand status | jq -r .sync_info.latest_block_height); 
  network_height=$(curl -s https://rpc.titan.josephtran.xyz/status | jq -r '.result.sync_info.latest_block_height')
  blocks_left=$((network_height - local_height)); 

  echo -e "\033[1;38mYour node height:\033[0m \033[1;34m$local_height\033[0m | \033[1;35mNetwork height:\033[0m \033[1;36m$network_height\033[0m | \033[1;29mBlocks left:\033[0m \033[1;31m$blocks_left\033[0m"; 
  sleep 5; 
done