# Sync

### Snapshot <a href="#snapshot" id="snapshot"></a>

Update every 6 hours

```
sudo systemctl stop symphonyd

cp $HOME/.symphonyd/data/priv_validator_state.json $HOME/.symphonyd/priv_validator_state.json.backup 

symphonyd tendermint unsafe-reset-all --home $HOME/.symphonyd --keep-addr-book 
curl https://snapshots.aknodes.net/snapshots/symphony/snapshot-symphony.AKNodes.lz4 | lz4 -dc - | tar -xf - -C $HOME/.symphonyd

mv $HOME/.symphonyd/priv_validator_state.json.backup $HOME/.symphonyd/data/priv_validator_state.json 

sudo systemctl restart symphonyd
sudo journalctl -u symphonyd -f --no-hostname -o cat
```

#### &#x20;<a href="#state-sync" id="state-sync"></a>

#### State-Sync <a href="#state-sync" id="state-sync"></a>

```
sudo systemctl stop symphonyd

cp $HOME/.symphonyd/data/priv_validator_state.json $HOME/.symphonyd/priv_validator_state.json.backup
symphonyd tendermint unsafe-reset-all --home $HOME/.symphonyd

peers="90b8e752f6b60977a68eeb13b6fcdce22103702c@148.113.153.62:29656"  
SNAP_RPC="https://rpc.symphony.aknodes.net:443"

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

mv $HOME/.symphonyd/priv_validator_state.json.backup $HOME/.symphonyd/data/priv_validator_state.json

sudo systemctl restart symphonyd && sudo journalctl -u symphonyd -f
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://services.aknodes.com/symphony/sync.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.