State Sync

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

sudo systemctl stop celestia-appd

cp $HOME/.celestia-app/data/priv_validator_state.json $HOME/.celestia-app/priv_validator_state.json.backup
celestia-appd tendermint unsafe-reset-all --home $HOME/.celestia-app

peers="[email protected]:26656,[email protected]:2000,[email protected]:26656,[email protected]:26656,[email protected]:26656,[email protected]:26010,[email protected]:26656,[email protected]:26656,[email protected]:26001,[email protected]:26656"  
SNAP_RPC="https://celestia-mainnet-rpc.suntzu.dev:443"

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

LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height);
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000));
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash) 

echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH && sleep 2

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/.celestia-app/config/config.toml

mv $HOME/.celestia-app/priv_validator_state.json.backup $HOME/.celestia-app/data/priv_validator_state.json

sudo systemctl restart celestia-appd && sudo journalctl -u celestia-appd -f