Lambda Validator

The below instructions would help in technical commands to setup Lambda Validator. The intended audience of these steps is anyone who is willing to contribute to the chain by becoming a validator.

Becoming a Validator is not one-time activity, it requires continuous engagement with the chain as well as community.

Installation Steps

Install dependencies

sudo apt update && sudo apt upgrade -ysudo apt install build-essential
wget https://go.dev/dl/go1.19.2.linux-amd64.tar.gztar xvfz go1.19.2.linux-amd64.tar.gzsudo cp -r go /usr/local/export PATH=$PATH:/usr/local/go/bin/go version
vi .profileexport PATH=$PATH:/usr/local/go/bin:~/go/bin/NOTE: Logout and log back in for the profile to reload.

Build Latest Binary

git clone https://github.com/LambdaIM/lambdavm.gitcd lambdavmmake install
/home/lamb/go/bin/lambdavm version

Initialize

lambdavm init TargetNodes --chain-id lambda_92000-1

Config Pruning & Snapshots

**# Set your desired pruning**
# config pruningpruning="custom"pruning_keep_recent="10000"pruning_keep_every="0"pruning_interval="10"sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \\"$pruning_keep_every\\"/" $HOME/.cantod/config/app.tomlsed -i -e "s/^pruning-interval *=.*/pruning-interval = \\"$pruning_interval\\"/" $HOME/.cantod/config/app.toml
# for pruning "100-0-10" you should decrease snapshots interval to avoid conflict with 100 blocks pruning and 1500 blocks snapshot-interval# sed -i 's/snapshot-interval *=.*/snapshot-interval = 100' $HOME/.cantod/config/app.toml

Reset Before Start

# resetcantod tendermint unsafe-reset-all --home $HOME/.cantod

Create & Run Service

cd /etc/systemd/system
sudo touch lambdavm.servicesudo vim lambdavm.service
[Unit]Description=Lambda DaemonAfter=network.target
[Service]Type=simpleUser=lambExecStart=/home/lamb/go/bin/lambdavm start Restart=on-abort
[Install]WantedBy=multi-user.target

Start From Genesis

cd /home/lamb/.lambdavm/configwget https://raw.githubusercontent.com/LambdaIM/mainnet/main/lambda_92000-1/genesis.jsonmv genesis.json.1 genesis.json
Validate Genesis File:lambdavm validate-genesisFile at /home/lamb/.lambdavm/config/genesis.json is a valid genesis file

Update Configs

Seed Nodes

Update config.toml file using this command.cd /home/lamb/.lambdavm/config# Comma separated list of seed nodes to connect toseeds = "2c4f8e193fd10ab3a2bc919b484fd1c78eceffb3@13.213.214.88:26656"SEEDS=`curl -sL https://raw.githubusercontent.com/LambdaIM/mainnet/main/lambda_92000-1/seeds.txt | awk '{print $1}' | paste -s -d, -`sed -i.bak -e "s/^seeds =.*/seeds = \"$SEEDS\"/" ~/.lambdavm/config/config.toml

Persistent Peers

cd /home/lamb/.lambdavm/configUpdate config.toml file using this command.
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" ~/.lambdavm/config/config.toml
# Comma separated list of nodes to keep persistent connections topersistent_peers = "6617b526fee2538227b0c469fe7344402d81a66f@161.97.167.196:26656,4cf9c0f6627d1a936f76cf9a507ad4a74f20a254@194.163.165.176:36656,26aa91eadbb7be63eb9af0b717e491649a3f29e3@149.102.129.76:56656,5a3dd7ea8d2bb3a76b760d4b2a425408401401f9@65.21.131.215:26556,2c4f8e193fd10ab3a2bc919b484fd1c78eceffb3@13.213.214.88:26656,53720d346f4c697c74e1d3f13d86c5aa3c0fc8c2@65.108.66.34:29386,3d737d177c8140687981330817d8cf0b8dc786c2@46.138.245.164,d24aa6ac0c2fdb02dce5703b660ba1e8ca80c384@65.108.134.215:33656,d475be798a3b8d9eceb56b5cb276ff75d515cb7b@38.242.215.240:26657,cfc0973d59f9c0624d3a059972ca20d625a02def@5.9.147.185:22657"

Commit Timeout

vi $HOME/.lambdavm/config/config.tomltimeout_commit = "2s"

Min Gas Fees & API

vi /home/lamb/.lambdavm/config/app.tomlenable = trueminimum-gas-prices = "0.0001ulamb"

Create New Key (or recover old one)

To Create A New Wallet:lambdavm keys add TargetNodes
To Add Existing Wallet:lambdavm keys add TargetNodes --recoverlambdavm keys unsafe-export-eth-key TargetNodes

Send create-validator Transaction

lambdavm tx staking create-validator \ --amount=1000000000000000000ulamb \ --pubkey=$(lambdavm tendermint show-validator) \ --moniker TargetNodes \ --chain-id=lambda_92000-1 \ --commission-rate="0.00" \ --commission-max-rate="0.20" \ --commission-max-change-rate="0.01" \ --min-self-delegation="1000000" \ --gas="300000" \ --gas-prices="0.025ulamb" \ --from TargetNodes \ --identity 62375E6841BF5B22 \ --details="A non-custodial platform to delegate your Crypto." \ --website="https://www.targetnodes.com" \ --broadcast-mode block

Start Service

sudo systemctl enable lambdavmsudo systemctl daemon-reloadsystemctl start lambdavm && journalctl -u lambdavm -f -o cat
journalctl -u lambdavm -f -o catsudo systemctl status lambdavm

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