Compile, Run and Deploy

This guide walks you through compiling and running NERO.

Download

Download the NERO source code using the following git command:

git clone https://github.com/nerochain/Nero.git

Install Golang

Before compiling NERO, make sure you have Golang installed on your system. Refer to the official Golang website (https://go.dev/dl/) for download and installation instructions.

Compile

Navigate to the directory where you cloned the NERO source code using:
```
cd /path/to/Nero
```
Compile NERO by running the following command:
```
make geth
```
This will create a compiled binary in the build/bin folder.

Run

Get a list of available options and their descriptions by running:
```
./build/bin/geth --help
```
Refer to the Command-line Options documentation for specific usage details.

Custom Option:

NERO offers a custom option named --traceaction:

--traceaction value     (default: 0)
    Trace internal tx call/create/suicide action, 0=no trace, 1=trace only native token > 0, 2=trace all

This option allows you to enable or disable custom JSON-RPC methods for tracing internal transactions.

Deployment

Introduce systemd management configs.

Hardware

Minimum

8core
16g
ssd iops>5k

Network & Port

External IP Address
Port TCP/UDP 30303

Chain Node

config.toml

[Eth]
SyncMode = "snap"
TrieTimeout = 1200000000000
StateScheme = "hash"

[Eth.Miner]
GasCeil = 40000000
Recommit = 3000000000
Noverify = false

[Eth.TxPool]
NoLocals = true
Journal = "transactions.rlp"
Rejournal = 600000000000
PriceLimit = 1000000000
PriceBump = 10
AccountSlots = 64
GlobalSlots = 10240
AccountQueue = 32
GlobalQueue = 1024
Lifetime = 1800000000000

[Node]
DataDir = "/data/nerochain/data"
DBEngine = "leveldb"
IPCPath = "geth.ipc"
HTTPHost = "0.0.0.0"
HTTPPort = 8545
HTTPCors = ["*"]
HTTPVirtualHosts = ["*"]
HTTPModules = ['eth', 'net', 'web3', 'turbo', 'engine']

WSHost = "0.0.0.0"
WSPort = 8546
WSModules = ['eth', 'net', 'web3', 'turbo', 'engine']

AuthPort = 8552

GraphQLVirtualHosts = ["localhost"]


[Node.P2P]
MaxPeers = 50
ListenAddr = ":30306"
EnableMsgEvents = false

[Node.HTTPTimeouts]
ReadTimeout = 30000000000
WriteTimeout = 30000000000
IdleTimeout = 120000000000

use snap sync in the config, if full needed - change this line

SyncMode = "snap"

SyncMode = "full"

Start Bash

To show full detail help info of all flags, type geth help or geth -h

run.sh

#!/usr/bin/env bash
/data/nero/chain/geth-linux-amd64 \
--config /data/nero/chain/config.toml  \
--log.file /data/nero/chain/logs/chain.log \
--log.rotate=true \
--traceaction 2 \
--verbosity 3

if you need to use it as archive node, add:

--syncmode full \
--gcmode archive \

so:

#!/usr/bin/env bash
/data/nero/chain/geth-linux-amd64 \
--config /data/nero/chain/config.toml  \
--log.file /data/nero/chain/logs/chain.log \
--log.rotate=true \
--traceaction 2 \
--syncmode full \
--gcmode archive \
--verbosity 3

If no network flags were provided, the node will connect the NERO mainnet by default. If you want to connect to NERO testnet, add:

--testnet

systemd config

[Unit]
Description=NERO chain service

[Service]
Type=simple
ExecStart=/bin/sh /data/nero/chain/run.sh
WorkingDirectory=/data/nero/chain
TimeoutSec=600
Restart=on-failure
RestartSec=5s

LimitNOFILE=65536

[Install]
WantedBy=multi-user.target

Overview Running Validator Node