lava-guide

LAVA Testnet guide

WebSite
GitHub

EXPLORER 1
EXPLORER 2

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Testnet	4	8GB	150GB

1) 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 08.04.24

cd $HOME
git clone https://github.com/lavanet/lava
wget -O lavad https://github.com/lavanet/lava/releases/download/v1.2.0/lavad-v1.2.0-linux-amd64
chmod +x lavad
mv lavad $HOME/go/bin/lavad

🟢UPDATE🟢 08.04.24

cd $HOME
wget -O lavad https://github.com/lavanet/lava/releases/download/v1.2.0/lavad-v1.2.0-linux-amd64
chmod +x lavad
mv lavad $(which lavad)
lavad version --long | grep -e commit -e version
lavap version
#version: 1.2.0
#commit: 72233db7870f2b2c4344e5dcbc686bef040db109
sudo systemctl restart lavad && sudo journalctl -u lavad -f -o cat

lavad version --long

• version: 1.2.0
• commit: 72233db7870f2b2c4344e5dcbc686bef040db109

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 https://raw.githubusercontent.com/it-blockchain/lava-guide/main/genesis.json -o genesis.json > $HOME/.lava/config/genesis.json

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

• 965769a6c79b35dc0a06dede9b2f87043e96a6973c91a796b021f07096405a2c

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="100" && \
pruning_keep_every="0" && \
pruning_interval="10" && \
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" ~/.lava/config/app.toml && \
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" ~/.lava/config/app.toml && \
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" ~/.lava/config/app.toml && \
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" ~/.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/obajay/nodes-Guides/main/Projects/Lava_Network/addrbook.json"

StateSync

SNAP_RPC=https://lava.rpc.t.stavr.tech:443
peers="46a02fc2908aec60985fd2852c424907d6f79ed7@lava.peers.stavr.tech: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 --keep-addr-book
systemctl restart lavad && journalctl -u lavad -f -o cat

SnapShot (~0.4 GB) 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 http://lava.snapshot.stavr.tech:1020/lava/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/obajay/nodes-Guides/main/Projects/Lava_Network/addrbook.json"
sudo systemctl restart lavad && journalctl -u lavad -f -o cat

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

Start

sudo systemctl daemon-reload
sudo systemctl enable lavad
sudo systemctl restart lavad && sudo journalctl -u lavad -f -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 STAVRguide \
  --chain-id lava-testnet-2 \
  --identity="" \
  --details="" \
  --website="" -y

🧩Services and Tools🧩

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)

Sync Info

lavad status 2>&1 | jq .SyncInfo

NodeINfo

lavad status 2>&1 | jq .NodeInfo

Check node logs

sudo journalctl -u lavad -f -o cat

Check Balance

lavad query bank balances lava...address1yjgn7z09ua9vms259j