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21b32849db
When launching our [small network](https://github.com/paritytech/polkadot-sdk/blob/master/cumulus/zombienet/examples/small_network.toml) for testing the node was crashing here shortly after launch: https://github.com/paritytech/polkadot-sdk/blob/5cdd819ed295645958afd9d937d989978fd0c84e/polkadot/node/collation-generation/src/lib.rs#L140 After changes in #1788 for the asset hub collator we are waiting for blocks of the shell runtime to pass before we initialize aura. However, this means that we attempted to initialize the collation related relay chain subsystems twice, leading to the error. I modified Aura to let it optionally take an already initialized stream of collation requests.
Substrate Cumulus Parachain Template
A new Cumulus-based Substrate node, ready for hacking ☁️..
This project is originally a fork of the Substrate Node Template modified to include dependencies required for registering this node as a parathread or parachain to a relay chain.
The stand-alone version of this template is hosted on the Substrate Devhub Parachain Template for each release of Polkadot. It is generated directly to the upstream Parachain Template in Cumulus at each release branch using the Substrate Template Generator.
👉 Learn more about parachains here, and parathreads here.
🧙 Learn about how to use this template and run your own parachain testnet for it in the Devhub Cumulus Tutorial.