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Run a full node from source

This guide outlines the steps to start a Morph node. The example assumes the home directory is ~/.morph

Hardware requirements​

Running the morph node requires 2 processes: geth and node.

  • Geth:the Morph execution layer which needs to meet the requirements as below

    • Fast CPU with 4+ cores
    • 32GB+ RAM
    • High-performance SSD with at least 1TB of free space
    • 25+ MBit/sec download Internet service

  • Node:the Morph consensus layer embedded tendermint which needs to meet the tendermint hardware requirements.

tip

According to limitations of the current geth implementation, we only support archive mode for launching a Geth. So the storage size of Geth will constantly increase along with blocks produced.

Build executable binary​

Clone morph​

mkdir -p ~/.morph 
cd ~/.morph
git clone https://github.com/morph-l2/morph.git

Currently, we use tag v0.4.0 as our version.

cd morph
git checkout v0.4.0

Build Geth​

Notice: You need C compiler to build geth

make geth

Build Node​

cd ~/.morph/morph/node 
make build

Config Preparation​

  1. Download the config files and make data dir
cd ~/.morph

## mainnet
wget https://raw.githubusercontent.com/morph-l2/run-morph-node/main/mainnet/data.zip

## testnet
wget https://raw.githubusercontent.com/morph-l2/run-morph-node/main/holesky/data.zip

unzip data.zip
  1. Create a shared secret with node
cd ~/.morph
openssl rand -hex 32 > jwt-secret.txt

Start Node​

Mainnet nodes currently support synchronization only from the genesis block, with snapshot-based synchronization planned for future updates. Testnet nodes support synchronization exclusively from snapshots.

Sync from genesis block(For mainnet)​

Start the execution client and consensus client directly without downloading snapshot.

Start execution client​

Script for starting mainnet geth
./morph/go-ethereum/build/bin/geth --morph \
    --datadir "./geth-data" \
    --http --http.api=web3,debug,eth,txpool,net,engine \
    --authrpc.addr localhost \
    --authrpc.vhosts="localhost" \
    --authrpc.port 8551 \
    --authrpc.jwtsecret=./jwt-secret.txt \
    --log.filename=./geth.log

note

For testnet, using --morph-holesky instead

tail -f geth.log to check if the Geth is running properly, or you can also execute the curl command below to check if you are connected to the peer.

curl -X POST -H 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"net_peerCount","params":[],"id":74}' localhost:8545

{"jsonrpc":"2.0","id":74,"result":"0x6"}

Start consensus client​

 ./morph/node/build/bin/morphnode --home ./node-data \
     --l2.jwt-secret ./jwt-secret.txt \
     --l2.eth http://localhost:8545 \
     --l2.engine http://localhost:8551 \
     --log.filename ./node.log

tail -f node.log to check if the node is running properly, and you can also execute the command curl to check your node connection status.

curl http://localhost:26657/net_info

{
  "jsonrpc": "2.0",
  "id": -1,
  "result": {
    "listening": true,
    "listeners": [
      "Listener(@)"
    ],
    "n_peers": "7",
    "peers": [
      {
        "node_info": {
          "protocol_version": {
            "p2p": "8",
            "block": "11",
            "app": "0"
          },
          "id": "b4ac59de479b0251d441ca0385429bc21713a208",
          "listen_addr": "tcp://0.0.0.0:26610",
          "network": "chain-morph-mainnet",
          "version": "0.37.0-alpha.1",
          "channels": "402021222338606100",
          "moniker": "morph-dataseed-node-0",
          "other": {
            "tx_index": "on",
            "rpc_address": "tcp://0.0.0.0:26657"
          }
        },
        "is_outbound": true,
 .......

Check sync status​

curl http://localhost:26657/status to check the sync status of the node

{
  "jsonrpc": "2.0",
  "id": -1,
  "result": {
    "node_info": {
      "protocol_version": {
        "p2p": "8",
        "block": "11",
        "app": "0"
      },
      "id": "cde0d7cecfe9c82244c1dfa72c951759d02f1024",
      "listen_addr": "tcp://0.0.0.0:26656",
      "network": "chain-morph-mainnet",
      "version": "0.37.0-alpha.1",
      "channels": "402021222338606100",
      "moniker": "my-morph-node",
      "other": {
        "tx_index": "on",
        "rpc_address": "tcp://0.0.0.0:26657"
      }
    },
    "sync_info": {
      "latest_block_hash": "B4C0E514CD984B101FA89D7DB48C1FE18384F64C25E5565F618A5FE2851C42A9",
      "latest_app_hash": "",
      "latest_block_height": "2410",
      "latest_block_time": "2024-10-21T08:49:09.952573291Z",
      "earliest_block_hash": "0D66D908033DA7A3F5A95179B8D64261EDD887B944E59502A1C9EFBC1C9C4EF5",
      "earliest_app_hash": "",
      "earliest_block_height": "1",
      "earliest_block_time": "2024-10-21T06:00:00Z",
      "catching_up": false
    },
    "validator_info": {
      "address": "B7395023EFF719D0EE15AD96FFC7F69B6B9E52EF",
      "pub_key": {
        "type": "tendermint/PubKeyEd25519",
        "value": "tZI+wTExwoKeyUFgdSSYmf4sAYp4BhJu13UgPy1wDOc="
      },
      "voting_power": "0"
    }
  }
}

The returned "catching_up" indicates whether the node is in sync or not. True means it is in sync. Meanwhile, the returned latest_block_height indicates the latest block height this node synced.

Sync from snapshot(Recommended for testnet)​

You should build the binary and prepare the config files in the above steps first, then download the snapshot.

Download snapshot​

## holesky
wget -q --show-progress https://snapshot.morphl2.io/holesky/snapshot-20241029-1.tar.gz
tar -xzvf snapshot-20241029-1.tar.gz

Extracting snapshot data to the data directory your node points to

mv snapshot-20241029-1/geth geth-data
mv snapshot-20241029-1/data node-data

Start the execution client and consensus client.