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Bastian Köcher
4975521d48
* Notify collators about seconded collation This pr adds functionality to inform a collator that its collation was seconded by a parachain validator. Before this signed statement was only gossiped over the validation substream. Now, we explicitly send the seconded statement to the collator after it was validated successfully. Besides that it changes the `CollatorFn` to return an optional result sender that is informed when the build collation was seconded by a parachain validator. * Add test * Make sure we only send `Seconded` statements * Make sure we only receive valid statements * Review feedback
How to run this collator
First start two validators that will run for the relay chain:
cargo run --features=real-overseer --release -- -d alice --chain rococo-local --validator --alice --port 50551
cargo run --features=real-overseer --release -- -d bob --chain rococo-local --validator --bob --port 50552
Next start the collator that will collate for the adder parachain:
cargo run --features=real-overseer --release -p test-parachain-adder-collator -- --tmp --chain rococo-local --port 50553
The last step is to register the parachain using polkadot-js. The parachain id is 100. The genesis state and the validation code are printed at startup by the collator.
To do this automatically, run scripts/adder-collator.sh.