Our State-Sync Server Setup
Our app.toml settings related to state-sync is as follows. This is for you information only. You do not need to follow the same setup on your node.
# Prune Type
pruning = "custom"
# Prune Strategy
pruning-keep-every = 2000
# State-Sync Snapshot Strategy
snapshot-interval = 2000
snapshot-keep-recent = 5
Our state-sync RPC server for <pretty_name> is:
https://rpc.celestia-testnet.posthuman.digital
Instruction
We assume that you use Cosmovisor to manage your node. If you do not use Cosmovisor, you will need to customize the following instruction slightly.
Create a reusable shell script such as state_sync.sh with the following code. The code will fetch important state-sync information (such as block height and trust hash) from our server and update your config.toml file accordingly.
#!/bin/bash
SNAP_RPC="https://rpc.celestia-testnet.posthuman.digital"
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 2000)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)
sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\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\"|" <node_home>/config/config.toml
Grant user the privilege to execute script and then run the script:
chmod 700 state_sync.sh
./state_sync.sh
Stop the node:
sudo systemctl stop celestia-appd.service
Reset the node:
# On some tendermint chains
~/go/bin/.celestia-appd unsafe-reset-all
# On other tendermint chains
~/go/bin/.celestia-appd tendermint unsafe-reset-all --home <node_home> --keep-addr-book
Restart the node:
sudo systemctl start celestia-appd.service
If everything goes well, your node should start syncing within 10 minutes.
