Awesome

The electra-testnet-0 guide

• Recommended hardware requirements:

• testnet-0 official ports:

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

Install the binary

There are 2 options to get the binary:

Option 1: Download (the easier softer way)

1.0) Direct download

wget http://electra01.alkia.net:3000/electrad.7z
p7zip -d electrad.7z

1.1) Download from this repo the 2 splits of the file

Github limit http upload to 25M max and we are a bit over so we needed to split in 2 files (command: <i>split -b 20M electra_linux_amd64.tar.gz </i>):

• electra_linux_amd64.tar.gz.part_aa

• electra_linux_amd64.tar.gz.part_ab

  1.1.2) Reconstruct the binary

  You join the files using the cat command. Employing cat is the most efficient and reliable method of performing a joining operation.

  cat electra_linux_amd64.tar.gz.part_* > electra_linux_amd64.tar.gz
  

  #####Security note: Please check that the checksum provided match the reconstructed electra_linux_amd64.tar.gz

  1.1.3) Untar

  tar -xvf electra_linux_amd64.tar.gz 
  

This gives you the binary electrad

2) Copy electrad to your favorite binary directory

cp electrad /usr/local/bin/
chmod a+x   /usr/local/bin/electrad

Option 2: Recompile

2.1) Install GO 18.7 (one command)

        wget https://golang.org/dl/go1.18.7.linux-amd64.tar.gz; \
        rm -rv /usr/local/go; \
        tar -C /usr/local -xzf go1.18.7.linux-amd64.tar.gz && \
        rm -v go1.18.7.linux-amd64.tar.gz && \
        echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> ~/.bash_profile && \
        source ~/.bash_profile && \
        go version

2.2) Build (07.11.22)

        git clone https://github.com/alkia/electra
        cd electra
        git checkout v0.1.4
        make install
    `electrad version`
    + version 0.1.4

Initilize the chain

sudo rm ~/.electra/ -r
moniker="electra03"
electrad tendermint unsafe-reset-all
electrad init $moniker --chain-id electra-testnet-0    

NOTES:

• Use only alphanumeric characters, hyphens, and underscores for your node name.
• If you are using secondary storage: You need to add a --home flag where you direct the command to the path of your secondary storage. By default, und init uses --home /home/$USER/.und_mainchain if you do not specify otherwise.

Create/recover wallet

electrad keys add <walletname>
electrad keys add <walletname> --recover

when creating, do not forget to write down the seed phrase

Check that your keys are recorded properly:

electrad keys list

Genesis

    wget https://raw.githubusercontent.com/Alkia/electra-testnet-0/main/genesis.json
    mv genesis.json ~/.electra/config/    

Seeds format: seeds = "[node_id@ip:port]"

Set up the minimum gas price $HOME/.electra/config/app.toml as well as seed and peers

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"1uelectra\"/;" ~/.electra/config/app.toml

sed -i.bak -e "s/^pruning *=.*/pruning = \"everything\"/;" ~/.electra/config/app.toml

sed -i.bak -e "s/^create_empty_blocks *=.*/create_empty_blocks = false/" $HOME/.electra/config/config.toml

# moniker="electra01" 

sed -i.bak -e "s/^moniker *=.*/moniker = \"$moniker\"/" $HOME/.electra/config/config.toml

external_address=$(wget -qO- eth0.me)

sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26659\"/" $HOME/.electra/config/config.toml

peers="E276114F7F6AC8E6566E22683186AB657BAF7C3E@66.42.50.244:26658"
peers="62504544f96a078cb70709486e318035c048ebc6@66.42.50.244:26658"

sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.electra/config/config.toml

seeds=""

sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.electra/config/config.toml 

sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 100/g' $HOME/.electra/config/config.toml

sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 100/g' $HOME/.electra/config/config.toml

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

Snapshot (optional)
or
RPC (optional)

Start

# Soft start
    electrad start --log_level info

At first, you will see an error message, e.g.:

E[2020-03-19|09:42:06.072] Stopping peer for error module=p2p peer="Peer{MConn{1.2.3.4:26656} dcff5de69dcc170b28b6628a1336d420f7eb60c0 out}" err=EOF This is normal. Wait. Eventually, you will see your node downloading blocks. Once you are happy seeing the blocks roll in, hit CTRL+C to stop the node.

Service start

    sudo systemctl daemon-reload
    sudo systemctl enable electrad
    sudo systemctl restart electrad
    sudo journalctl -u electrad -f -o cat

Notes on Managing Validator

Running a production-quality validator node with a robust architecture and security features requires an extensive setup.

Electra chain is powered by the Tendermint consensus. Validators run full nodes, participate in consensus by broadcasting votes, commit new blocks to the blockchain, and participate in governance of the blockchain.

Validators earn the following fees:

• Gas: Fees added on to each transaction to avoid spamming and pay for computing power. Validators set minimum gas prices and reject transactions that have implied gas prices below this threshold.
• Validators get coins as rewards proportional to their shares

If validators double sign or frequently offline, their credibility will be slashed. Penalties can vary depending on the severity of the violation.

Create validator

electrad tx staking create-validator --amount 100000000uelectra --commission-max-change-rate "0.10" --commission-max-rate "0.20" --commission-rate "0.10" --min-self-delegation "1" --identity="" --details="" --website="" --pubkey $(electrad tendermint show-validator) --moniker electra01 --chain-id electra-testnet-0 -y --from <walletName> 

References

* [Website](https://electra.alkia.net/)       
* [Block Explorer](https://www.mintscan.io/electra/validators)

Options

Pruning (optional)

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

Indexer (optional)

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

Remove

sudo systemctl stop electrad && \
sudo systemctl disable electrad && \
rm /etc/systemd/system/electrad.service && \
sudo systemctl daemon-reload && \
cd $HOME && \
rm -rf .electrad && \
rm -rf electra && \
rm -rf $(which electrad)    

electrad chain init

electrad keys add validator --keyring-backend test
electrad add-genesis-account electra1ta52mxc8xfmaaatq88ycr6pyuruhqxux6hmdyh 100000000uelectra --keyring-backend test
electrad gentx validator 100000000uelectra  --chain-id electra-testnet-0  --keyring-backend test
electrad collect-gentxs
electrad validate-genesis