💾Node Installation

Lava Testnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Testnet	4	8GB	150GB

1) Auto_install script

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

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 05.12.24

cd $HOME && mkdir $HOME/go/bin/
cd $HOME
wget -O lavad https://github.com/lavanet/lava/releases/download/v4.2.0/lavad-v4.2.0-linux-amd64
chmod +x lavad
mv lavad $HOME/go/bin/lavad

lavad version --long | grep -e commit -e version

• version: 4.2.0

• commit: 18c395ba01dbd650eac3d276991782faa28270ae

Initiation

lavad init STAVR_guide --chain-id=lava-testnet-2
lavad config chain-id lava-testnet-2

Create/recover wallet

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

Download Genesis

curl -s "https://raw.githubusercontent.com/111STAVR111/props/main/Lava/genesis.json" > $HOME/.lava/config/genesis.json

sha256sum $HOME/.lava/config/genesis.json

• f7a0c7d2587d2bf640570309137c905eac834f0aba99f90b4c10f45ef8334583

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

sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0ulava\"/" $HOME/.lava/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.lava/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.lava/config/config.toml
sed -i \
-e 's/timeout_propose = .*/timeout_propose = "1s"/' \
-e 's/timeout_propose_delta = .*/timeout_propose_delta = "500ms"/' \
-e 's/timeout_prevote = .*/timeout_prevote = "1s"/' \
-e 's/timeout_prevote_delta = .*/timeout_prevote_delta = "500ms"/' \
-e 's/timeout_precommit = .*/timeout_precommit = "500ms"/' \
-e 's/timeout_precommit_delta = .*/timeout_precommit_delta = "1s"/' \
-e 's/timeout_commit = .*/timeout_commit = "15s"/' \
-e 's/^create_empty_blocks = .*/create_empty_blocks = true/' \
-e 's/^create_empty_blocks_interval = .*/create_empty_blocks_interval = "15s"/' \
-e 's/^timeout_broadcast_tx_commit = .*/timeout_broadcast_tx_commit = "151s"/' \
-e 's/skip_timeout_commit = .*/skip_timeout_commit = false/' \
$HOME/.lava/config/config.toml
sed -i -e 's/broadcast-mode = ".*"/broadcast-mode = "sync"/g' $HOME/.lava/config/client.toml

Pruning (optional)

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

Indexer (optional)

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

Download addrbook

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

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Lava Testnet

SNAP_RPC=https://lava.rpc.t.stavr.tech:443
peers="[e-mail]:197"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.lava/config/config.toml
LATEST_HEIGHT=$(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/.lava/config/config.toml
lavad tendermint unsafe-reset-all --home /root/.lava
wget -O $HOME/.lava/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Lava/addrbook.json"
systemctl restart lavad && journalctl -fu lavad -o cat

SnapShot Testnet updated every 5 hours

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

Start

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

Create validator

lavad tx staking create-validator \
  --amount 1000000ulava \
  --from <walletName> \
  --commission-max-change-rate "0.1" \
  --commission-max-rate "0.2" \
  --commission-rate "0.1" \
  --min-self-delegation "1" \
  --pubkey  $(lavad tendermint show-validator) \
  --moniker STAVR_guide \
  --chain-id lava-testnet-2 \
  --identity="" \
  --details="" \
  --website="" -y

🧩Services and Tools🧩

Monitoring

You can set up your node status alarm here - Monitoring

Security

You can create secure management of your wallet and your node by following this links.

TMKMS Wallet Security

Delete node

sudo systemctl stop lavad
sudo systemctl disable lavad
rm /etc/systemd/system/lavad.service
sudo systemctl daemon-reload
cd $HOME
rm -rf GHFkqmTzpdNLDd6T
rm -rf .lava
rm -rf $(which lavad)