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System Requirements

• The binaries in ./bin/release are x86_64 binaries to be used with the Linux kernel.
• Subtensor needs ~286 MiB to run.
• Architectures other than x86_64 are currently not supported.
• OSs other than Linux and MacOS are currently not supported.

Architectures

Subtensor support the following architectures:

Linux x86_64

Requirements:

• Linux kernel 2.6.32+,
• glibc 2.11+

MacOS x86_64

Requirements:

• MacOS 10.7+ (Lion+)

Network requirements

• Subtensor needs access to the public internet
• Subtensor runs on ipv4
• Subtensor listens on the following ports:

1. 9944 - Websocket. This port is used by bittensor. It only accepts connections from localhost. Make sure this port is firewalled off from the public domain.
2. 9933 - RPC. This port is opened, but not used.
3. 30333 - p2p socket. This port accepts connections from other subtensor nodes. Make sure your firewall(s) allow incoming traffic to this port.

• It is assumed your default outgoing traffic policy is ACCEPT. If not, make sure outbound traffic to port 30333 is allowed.

Rust Setup

First, complete the basic Rust setup instructions.

Run

Use Rust's native cargo command to build and launch the template node:

cargo run --release -- --dev --tmp

Build

The cargo run command will perform an initial build. Use the following command to build the node without launching it:

cargo build --release

Embedded Docs

Once the project has been built, the following command can be used to explore all parameters and subcommands:

./target/release/node-subtensor -h

Run

The provided cargo run command will launch a temporary node and its state will be discarded after you terminate the process. After the project has been built, there are other ways to launch the node.

Single-Node Development Chain

This command will start the single-node development chain with persistent state:

./target/release/node-subtensor --dev

Purge the development chain's state:

./target/release/node-subtensor purge-chain --dev

Start the development chain with detailed logging:

RUST_LOG=debug RUST_BACKTRACE=1 ./target/release/node-subtensor -lruntime=debug --dev

run debug with logs.

SKIP_WASM_BUILD=1 RUST_LOG=runtime=debug -- --nocapture

Run with Docker 🐳

You can run an up to date Substrate blockchain using

docker-compose up

which will download the hourly blockchain snapshot and compile it into a docker container, then run it locally on your machine.

You can use

docker-compose up -d

to run the blockchain in the background.