How to Run A Fullnode on Binance Smart Chain
Fullnodes Functions
- Stores the full blockchain history on disk and can answer the data request from the network.
- Receives and validates the new blocks and transactions.
- Verifies the states of every accounts.
Supported Platforms
We support running a full node on Mac OS X
and Linux
.
Minimum Requirements
The hardware must meet certain requirements to run a full node.
- VPS running recent versions of Mac OS X or Linux.
- 500 GB of free disk space
- 4 cores of CPU and 8 gigabytes of memory (RAM).
- A broadband Internet connection with upload/download speeds of at least 1 megabyte per second
Settings
Sync Mode
- Fast Sync
The default sync mode. Synchronizes a full node doing a fast synchronization by downloading the entire state database, requesting the headers first, and filling in block bodies and receipts afterward. Once the fast sync reaches the best block of the Binance Smart Chain network, it switches to full sync mode.
- Full Sync
Synchronizes a full node starting at genesis, verifying all blocks and executing all transactions. This mode is a bit slower than the fast sync mode but comes with increased security.
Steps to Run a Fullnode
1.Build from source code
Make sure that you have installed Go 1.13+ and have added GOPATH
to PATH
environment variable
git clone https://github.com/binance-chain/bsc
# Enter the folder bsc was cloned into
cd bsc
# Comile and install bsc
make geth
or you can download the pre-build binaries from release page or follow the instructions below:
# Linux
wget --no-check-certificate https://github.com/binance-chain/bsc/releases/download/v1.0.6/geth_linux
# MacOS
wget --no-check-certificate https://github.com/binance-chain/bsc/releases/download/v1.0.6/geth_mac
2.Download the config files
Download genesis.json
and config.toml
by:
## mainet
wget --no-check-certificate $(curl -s https://api.github.com/repos/binance-chain/bsc/releases/latest |grep browser_ |grep mainnet |cut -d\" -f4)
unzip mainnet.zip
## testnet
wget --no-check-certificate $(curl -s https://api.github.com/repos/binance-chain/bsc/releases/latest |grep browser_ |grep testnet |cut -d\" -f4)
unzip testnet.zip
3.Write genesis state locally
geth --datadir node init genesis.json
You could see the following output:
INFO [05-19|14:53:17.468] Allocated cache and file handles database=/Users/huangsuyu/Downloads/bsc/node/geth/chaindata cache=16.00MiB handles=16
INFO [05-19|14:53:17.498] Writing custom genesis block
INFO [05-19|14:53:17.501] Persisted trie from memory database nodes=21 size=56.84KiB time=357.915µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=-574.00B
INFO [05-19|14:53:17.502] Successfully wrote genesis state database=chaindata hash=7d79cc…fb0d1e
INFO [05-19|14:53:17.503] Allocated cache and file handles database=/Users/huangsuyu/Downloads/bsc/node/geth/lightchaindata cache=16.00MiB handles=16
INFO [05-19|14:53:17.524] Writing custom genesis block
INFO [05-19|14:53:17.525] Persisted trie from memory database nodes=21 size=56.84KiB time=638.396µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=-574.00B
INFO [05-19|14:53:17.528] Successfully wrote genesis state database=lightchaindata hash=7d79cc…fb0d1e
4.Start your fullnode
## start a full node
geth --config ./config.toml --datadir ./node --pprofaddr 0.0.0.0 --metrics --pprof
Start a validator node
## generate the consensus key and input the password
geth account new --datadir ./node
echo {your-password} > password.txt
geth --config ./config.toml --datadir ./node -unlock {your-validator-address} --password password.txt --mine --gcmode archive --allow-insecure-unlock --pprofaddr 0.0.0.0 --metrics --pprof
Note
Because the default value of TrieTimeout
in config.toml is large, it means geth
will not persist state into database until reach this time threshold, if the node has been force shutdown, it will start syncing from last state which may take long time. The recommended setting for valiidators is TrieTimeout = 100000000000
5.Monitor node status
you can monitor the log from /node/bsc.log
by default.
Upgrade Geth
Please read this guide