State Sync allows a new node to join the network by fetching a snapshot of the application state at a recent height instead of fetching and replaying all historical blocks. Since the application state is generally much smaller than the blocks, and restoring it is much faster than replaying blocks, this can reduce the time to sync with the network from days to minutes.
Stop the service and reset the data
sudo systemctl stop soarchain-testnet.service
cp $HOME/.soarchain/data/priv_validator_state.json $HOME/.soarchain/priv_validator_state.json.backup
soarchaind tendermint unsafe-reset-all --keep-addr-book --home $HOME/.soarchain
Get and configure the state sync information
STATE_SYNC_RPC=https://soarchain-testnet.rpc.kjnodes.com:443
STATE_SYNC_PEER=d5519e378247dfb61dfe90652d1fe3e2b3005a5b@soarchain-testnet.rpc.kjnodes.com:17256
LATEST_HEIGHT=$(curl -s $STATE_SYNC_RPC/block | jq -r .result.block.header.height)
SYNC_BLOCK_HEIGHT=$(echo "$LATEST_HEIGHT" | awk '{printf "%d000\n", $0 / 1000}')
SYNC_BLOCK_HASH=$(curl -s "$STATE_SYNC_RPC/block?height=$SYNC_BLOCK_HEIGHT" | jq -r .result.block_id.hash)
sed -i \
-e "s|^enable *=.*|enable = true|" \
-e "s|^rpc_servers *=.*|rpc_servers = \"$STATE_SYNC_RPC,$STATE_SYNC_RPC\"|" \
-e "s|^trust_height *=.*|trust_height = $SYNC_BLOCK_HEIGHT|" \
-e "s|^trust_hash *=.*|trust_hash = \"$SYNC_BLOCK_HASH\"|" \
-e "s|^persistent_peers *=.*|persistent_peers = \"$STATE_SYNC_PEER\"|" \
$HOME/.soarchain/config/config.toml
mv $HOME/.soarchain/priv_validator_state.json.backup $HOME/.soarchain/data/priv_validator_state.json
(Optional) Download latest wasm
If the chain does not support copy of the wasm
folder, you can download it manually.
curl -L https://snapshots.kjnodes.com/soarchain-testnet/wasm_latest.tar.lz4 | lz4 -dc - | tar -xf - -C $HOME/.soarchain
Restart the service and check the log
sudo systemctl start soarchain-testnet.service && sudo journalctl -u soarchain-testnet.service -f --no-hostname -o cat