Node StateSync Bitcanna

State sync Bitcanna

In addition to node snapshot, we also provide node state sync, node state sync is also suitable for developers or node operators to syncing.., restore or get block height for their nodes, also reducing the time required to sync nodes multiple times.

State Sync Info

snapshot-interval = "1000"
snapshot-keep-recent = "5"
RPC servers: https://bitcanna-rpc.genznodes.dev:443
Statesync node id : [email protected]:32656

check rpc

Instructions ( Please Read This )

- Before using it, you can check the rpc url first whether it's down or not
- Contact us if you need help
- Using a node state-sync usually takes about 10 minutes, depending on the weight of the node.
- For validator node make sure back up priv_validator_key.json , priv_validator_state.json. validator's security reason.

Stop node and Reset data:

sudo systemctl stop bcnad 
bcnad tendermint unsafe-reset-all --home $HOME/.bcna --keep-addr-book

sudo systemctl stop bcnad 
bcnad tendermint unsafe-reset-all --home $HOME/.bcna --keep-addr-book

Retrieve node height information and trusted hashes from rpc:

STATE_SYNC_RPC="https://bitcanna-rpc.genznodes.dev:443"

LATEST_HEIGHT=$(curl -s $STATE_SYNC_RPC/block | jq -r .result.block.header.height)
SYNC_BLOCK_HEIGHT=$(($LATEST_HEIGHT - 1000))
SYNC_BLOCK_HASH=$(curl -s "$STATE_SYNC_RPC/block?height=$SYNC_BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $SYNC_BLOCK_HEIGHT $SYNC_BLOCK_HASH

STATE_SYNC_RPC="https://bitcanna-rpc.genznodes.dev:443"

LATEST_HEIGHT=$(curl -s $STATE_SYNC_RPC/block | jq -r .result.block.header.height)
SYNC_BLOCK_HEIGHT=$(($LATEST_HEIGHT - 1000))
SYNC_BLOCK_HASH=$(curl -s "$STATE_SYNC_RPC/block?height=$SYNC_BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $SYNC_BLOCK_HEIGHT $SYNC_BLOCK_HASH

Add our state sync server id node to your config.toml:

PEERS="50e4ad8f5847c1fc4d9cb3de2cb6356d1a14291b@95.214.55.138:32656"
sed -i -e "s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.bcna/config/config.toml

PEERS="[email protected]:32656"
sed -i -e "s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.bcna/config/config.toml

Enable state sync:

sed -i  -e "s|^enable *=.*|enable = true|" $HOME/.bcna/config/config.toml

sed -i  -e "s|^enable *=.*|enable = true|" $HOME/.bcna/config/config.toml

Set state sync in config.toml :

sed -i -e "s|^rpc_servers *=.*|rpc_servers = \"$STATE_SYNC_RPC,$STATE_SYNC_RPC\"|" \
$HOME/.bcna/config/config.toml
sed -i -e "s|^trust_height *=.*|trust_height = $SYNC_BLOCK_HEIGHT|" \
$HOME/.bcna/config/config.toml
sed -i -e "s|^trust_hash *=.*|trust_hash = \"$SYNC_BLOCK_HASH\"|" \
$HOME/.bcna/config/config.toml

sed -i -e "s|^rpc_servers *=.*|rpc_servers = \"$STATE_SYNC_RPC,$STATE_SYNC_RPC\"|" \
$HOME/.bcna/config/config.toml
sed -i -e "s|^trust_height *=.*|trust_height = $SYNC_BLOCK_HEIGHT|" \
$HOME/.bcna/config/config.toml
sed -i -e "s|^trust_hash *=.*|trust_hash = \"$SYNC_BLOCK_HASH\"|" \
$HOME/.bcna/config/config.toml

Restart node:

sudo systemctl restart bcnad
sudo journalctl -fu bcnad -o cat

sudo systemctl restart bcnad
sudo journalctl -fu bcnad -o cat

++ Instructions

If your node already sync set false again in config.toml

sed -i -e "s|^enable *=.*|enable = false|" $HOME/.bcna/config/config.toml

sed -i -e "s|^enable *=.*|enable = false|" $HOME/.bcna/config/config.toml

Remove our server peers use addrbook instead

PEERS=""
sed -i -e "s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.bcna/config/config.toml

PEERS=""
sed -i -e "s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.bcna/config/config.toml

Restart your node