This PR brings the fix https://github.com/paritytech/substrate/pull/13396 to polkadot-sdk. In the past, due to insufficient inbound slot count on polkadot & kusama, this fix led to low peer count. The situation has improved since then after changing the default ratio between `--in-peers` & `--out-peers`. Nevertheless, it's expected that the reported total peer count with this fix is going to be lower than without it. This should be seen as the correct number of working connections reported, as opposed to also reporting already closed connections, and not as lower count of working connections with peers. This PR also removes the peer eviction mechanism, as closed substream detection is a more granular way of detecting peers that stopped syncing with us. The burn-in has been already performed as part of testing these changes in https://github.com/paritytech/polkadot-sdk/pull/3426. --------- Co-authored-by: Aaro Altonen <a.altonen@hotmail.com>
Substrate
Substrate is a next-generation framework for blockchain innovation 🚀.
Getting Started
Head to docs.substrate.io and follow the installation
instructions. Then try out one of the tutorials. Refer to the Docker
instructions to quickly run Substrate, Substrate Node Template, Subkey, or to build a chain spec.
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Join the highly active and supportive community on the Substrate Stack Exchange to ask questions about use and problems you run into using this software. Please do report bugs and issues here for anything you suspect requires action in the source.
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In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
Security
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docs/contributor/SECURITY.md.
License
- Substrate Primitives (
sp-*), Frame (frame-*) and the pallets (pallets-*), binaries (/bin) and all other utilities are licensed under Apache 2.0. - Substrate Client (/client/*/sc-*) is licensed under GPL v3.0 with a classpath linking exception.
The reason for the split-licensing is to ensure that for the vast majority of teams using Substrate to create feature-chains, then all changes can be made entirely in Apache2-licensed code, allowing teams full freedom over what and how they release and giving licensing clarity to commercial teams.
In the interests of the community, we require any deeper improvements made to Substrate's core logic (e.g. Substrate's internal consensus, crypto or database code) to be contributed back so everyone can benefit.
