mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-28 03:58:04 +00:00
Wei Tang
6d0bed8a65
* Limit number of incoming connections * Check Endpoint::Listener before checking num_open_connections.incoming * Maintain at least 1-1/n portion of outgoing connections * Remove use * Default incoming_peers_factor to 2 * Use max_incoming_peers and max_outgoing peers to check whether connections should be dropped * Fix expected_max_peers: reserved peers are not counted in config.max_peers * typo: fix test
= Polkadot :Author: Polkadot developers :Revision: 0.2.0 :toc: :sectnums: Implementation of a https://polkadot.network node in Rust. == To play If you'd like to play with Polkadot, you'll need to install a client like this one. First, get Rust (1.26.1 or later) and the support software if you don't already have it: [source, shell] ---- curl https://sh.rustup.rs -sSf | sh sudo apt install make clang pkg-config libssl-dev ---- Then, install Polkadot PoC-2: [source, shell] cargo install --git https://github.com/paritytech/polkadot.git --branch v0.2 polkadot You'll now have a `polkadot` binary installed to your `PATH`. You can drop the `--branch v0.2` or run `cargo install --git https://github.com/paritytech/polkadot.git polkadot` to get the very latest version of Polkadot, but these instructions might not work in that case. === Krumme Lanke Testnet You will connect to the global Krumme Lanke testnet by default. To do this, just use: [source, shell] polkadot If you want to do anything on it (not that there's much to do), then you'll need to get some Krumme Lanke DOTs. Ask in the Polkadot watercooler. === Development You can run a simple single-node development "network" on your machine by running in a terminal: [source, shell] polkadot --dev You can muck around by cloning and building the http://github.com/paritytech/polka-ui and http://github.com/paritytech/polkadot-ui or just heading to https://polkadot.js.org/apps. == Local Two-node Testnet If you want to see the multi-node consensus algorithm in action locally, then you can create a local testnet. You'll need two terminals open. In one, run: [source, shell] polkadot --chain=local --validator --key Alice -d /tmp/alice and in the other, run: [source, shell] polkadot --chain=local --validator --key Bob -d /tmp/bob --port 30334 --bootnodes '/ip4/127.0.0.1/tcp/30333/p2p/ALICE_BOOTNODE_ID_HERE' Ensure you replace `ALICE_BOOTNODE_ID_HERE` with the node ID from the output of the first terminal. == Hacking on Polkadot If you'd actually like hack on Polkadot, you can just grab the source code and build it. Ensure you have Rust and the support software installed: [source, shell] ---- curl https://sh.rustup.rs -sSf | sh rustup update nightly rustup target add wasm32-unknown-unknown --toolchain nightly rustup update stable cargo install --git https://github.com/alexcrichton/wasm-gc sudo apt install cmake pkg-config libssl-dev ---- Then, grab the Polkadot source code: [source, shell] ---- git clone https://github.com/paritytech/polkadot.git cd polkadot ---- Then build the code: [source, shell] ---- ./build.sh # Builds the WebAssembly binaries cargo build # Builds all native code ---- You can run the tests if you like: [source, shell] cargo test --all You can start a development chain with: [source, shell] cargo run -- --dev include::doc/packages.adoc[]