Robert Habermeier
c200ce757b
* always fetch epoch from runtime * node integration tests don't test light nodes * give stand-in full node a FULL role * rejig babe APIs * introduce next-epoch-descriptor type * overhaul srml-BABE epoch logic * ensure VRF outputs end up in the right epoch-randomness * rewrite `do_initialize` to remove unnecessary loop * begin accounting for next epoch in epoch function * slots passes header to epoch_data * pass slot_number to SlotWorker::epoch_data * begin extracting epoch-change logic into its own module * aux methods for block weight * aux methods for genesis configuration * comment-out most, refactor header-check pipeline * mostly flesh out verifier again * reinstantiate babe BlockImport implementation * reinstate import-queue instantiation * reintroduce slot-worker implementation * reinstate pretty much all the rest * move fork-choice logic to BlockImport * fix some, but not all errors * patch test-runtime * make is_descendent of slightly more generic * get skeleton compiling when passing is_descendent_of * make descendent-of-builder more succinct * restore ordering of authority_index / slot_number * start fiddling with tests * fix warnings * improve initialization architecture and handle genesis * tests use correct block-import * fix BABE tests * fix some compiler errors * fix node-cli compilation * all crates compile * bump runtime versions and fix some warnings * tweak fork-tree search implementation * do backtracking search in fork-tree * node-cli integration tests now work * fix broken assumption in test_connectivity * babe tests fail for the right reasons. * test genesis epoch logic for epoch_changes * test that epochs can change between blocks * First BABE SRML test * Testing infrastructure for BABE Also includes a trivial additional test. * Apply suggestions from code review Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * A little more test progress * More work on BABE testing * Try to get the tests working * Implement `UintAuthorityId`-based test mocks * Fix compilation errors * Adjust to upstream changes * Block numbers are ignored in BABE epoch calculation * authority_index() should ignore invalid authorities * Fix compile error * Add tests that session transitions happen * Check if BABE produces logs It currently does not. * Fix test suite This was really nasty, due to a type confusion that showed up as an off-by-1 buffer error. * Add additional tests Most of these were derived from the current output, so they are only useful to guard against regressions. * Make the tests more readable Also bump impl_version. * Fix excessive line width * Remove unused imports * Update srml/babe/src/lib.rs Co-Authored-By: André Silva <andre.beat@gmail.com> * try to fix imports * Fix build errors in test suite * tests did not pass * Try to get at least one digest to be output Currently, the code emits either no digests (if I don’t call `Session::rotate_session()` or two digests (if I do), which is wrong. * More tests They still don’t work, but this should help debugging. * fix silly error * Don’t even try to compile a broken test * remove broken check_epoch test and add one for genesis epoch * Check that the length of the pre-digests is correct * Bump `impl_version` * use epoch_for_descendent_of even for genesis * account for competing block 1s * finish srml-babe docs Co-Authored-By: André Silva <andre.beat@gmail.com> * address grumbles
Substrate Node Template
A new SRML-based Substrate node, ready for hacking.
Build
Install Rust:
curl https://sh.rustup.rs -sSf | sh
Install required tools:
./scripts/init.sh
Build Wasm and native code:
cargo build
Run
Single node development chain
You can start a development chain with:
cargo run -- --dev
Detailed logs may be shown by running the node with the following environment variables set: RUST_LOG=debug RUST_BACKTRACE=1 cargo run -- --dev.
Multi-node local testnet
If you want to see the multi-node consensus algorithm in action locally, then you can create a local testnet with two validator nodes for Alice and Bob, who are the initial authorities of the genesis chain that have been endowed with testnet units.
Optionally, give each node a name and expose them so they are listed on the Polkadot telemetry site.
You'll need two terminal windows open.
We'll start Alice's substrate node first on default TCP port 30333 with her chain database stored locally at /tmp/alice. The bootnode ID of her node is QmRpheLN4JWdAnY7HGJfWFNbfkQCb6tFf4vvA6hgjMZKrR, which is generated from the --node-key value that we specify below:
cargo run -- \
--base-path /tmp/alice \
--chain=local \
--alice \
--node-key 0000000000000000000000000000000000000000000000000000000000000001 \
--telemetry-url ws://telemetry.polkadot.io:1024 \
--validator
In the second terminal, we'll start Bob's substrate node on a different TCP port of 30334, and with his chain database stored locally at /tmp/bob. We'll specify a value for the --bootnodes option that will connect his node to Alice's bootnode ID on TCP port 30333:
cargo run -- \
--base-path /tmp/bob \
--bootnodes /ip4/127.0.0.1/tcp/30333/p2p/QmRpheLN4JWdAnY7HGJfWFNbfkQCb6tFf4vvA6hgjMZKrR \
--chain=local \
--bob \
--port 30334 \
--telemetry-url ws://telemetry.polkadot.io:1024 \
--validator
Additional CLI usage options are available and may be shown by running cargo run -- --help.