💾Node Installation

C4E Mainnet guide

  • Approximate hardware requirements:

Node TypeCPURAMStorage

Mainnet

8

16GB

250GB

1) Auto_install script

wget -O c4 https://raw.githubusercontent.com/111STAVR111/props/main/C4E/c4 && chmod +x c4 && ./c4

2) Manual installation

Preparing the server

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 chrony liblz4-tool -y

GO 1.21.6

ver="1.21.6"
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$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version

Build 20.02.24

cd $HOME && mkdir $HOME/go/bin/
git clone https://github.com/chain4energy/c4e-chain
cd c4e-chain
git checkout v1.3.1
make install

c4ed version --long | grep -e commit -e version

  • version: 1.3.1

  • commit: 55fe5c3c1a1b9a8489d39e765413315c5b61c4f7

Initiation

c4ed init STAVR_guide --chain-id=perun-1
c4ed config chain-id perun-1

Create/recover wallet

c4ed keys add <walletname>
           OR
c4ed keys add <walletname> --recover

Download Genesis

wget -O $HOME/.c4e-chain/config/genesis.json "https://raw.githubusercontent.com/111STAVR111/props/main/C4E/genesis.json"

sha256sum $HOME/.c4e-chain/config/genesis.json

  • 6c736993a681a6759d3ec41550995fe04f48dd332d03375d879f3b464c6ceabf

Set up the minimum gas price and Peers/Seeds/Filter peers/MaxPeers

sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0uc4e\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $HOME/.c4e-chain/config/config.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.c4e-chain/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.c4e-chain/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.c4e-chain/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.c4e-chain/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.c4e-chain/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="100"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.c4e-chain/config/app.toml

Indexer (optional)

indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.c4e-chain/config/config.toml

Download addrbook

wget -O $HOME/.c4e-chain/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/C4E/addrbook.json"

Create a service file

sudo tee /etc/systemd/system/c4ed.service > /dev/null <<EOF
[Unit]
Description=c4e
After=network-online.target

[Service]
User=$USER
ExecStart=$(which c4ed) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

StateSync C4E Mainnet

SNAP_RPC=https://c4e.rpc.m.stavr.tech:443
peers="5ed0b8f7989d34438f71ccc74b0ab0fbf763a475@c4e.peer.stavr.tech:17096"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.c4e-chain/config/config.toml
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 100)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \
s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$SNAP_RPC,$SNAP_RPC\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.c4e-chain/config/config.toml
c4ed tendermint unsafe-reset-all --home /root/.c4e-chain --keep-addr-book
sudo systemctl restart c4ed && journalctl -u c4ed -f -o cat

SnapShot Mainnet updated every 5 hours

cd $HOME
apt install lz4
sudo systemctl stop c4ed
cp $HOME/.c4e-chain/data/priv_validator_state.json $HOME/.c4e-chain/priv_validator_state.json.backup
rm -rf $HOME/.c4e-chain/data
curl -o - -L http://c4e.snapshot.stavr.tech:1018/c4e/c4e-snap.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.c4e-chain --strip-components 2
mv $HOME/.c4e-chain/priv_validator_state.json.backup $HOME/.c4e-chain/data/priv_validator_state.json
wget -O $HOME/.c4e-chain/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/C4E/addrbook.json"
sudo systemctl restart c4ed && journalctl -u c4ed -f -o cat

Start

sudo systemctl daemon-reload
sudo systemctl enable c4ed
sudo systemctl restart c4ed && sudo journalctl -fu c4ed -o cat

Create validator

c4ed tx staking create-validator \
  --amount 1000000uc4e \
  --from <walletName> \
  --commission-max-change-rate "0.1" \
  --commission-max-rate "0.2" \
  --commission-rate "0.1" \
  --min-self-delegation "1" \
  --pubkey  $(c4ed tendermint show-validator) \
  --moniker STAVR_guide \
  --chain-id perun-1 \
  --identity="" \
  --details="" \
  --website="" -y

Delete node

sudo systemctl stop c4ed
sudo systemctl disable c4ed
rm /etc/systemd/system/c4ed.service
sudo systemctl daemon-reload
cd $HOME
rm -rf c4e-chain
rm -rf .c4e-chain
rm -rf $(which c4ed)

Last updated