Robert Habermeier
aedf089691
* alternate availability store schema * improvements * tweaks * new DB schema and skeleton * expand skeleton and tweaks * handle backing and inclusion * let finality be handled later * handle finalized blocks * implement query methods * implement chunk storing * StoreAvailableData * fix an off-by-one * implement pruning * reinstate subsystem trait impl * reinstate metrics * fix warnings * remove chunks_cache * oops * actually store the available data * mockable pruning interval * fix tests * spacing * fix code grumbles * guide improvements * make time mockable * implement a mocked clock for testing * return DB errors * Update node/core/av-store/Cargo.toml Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> * Update roadmap/implementers-guide/src/node/utility/availability-store.md Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> * Update roadmap/implementers-guide/src/node/utility/availability-store.md Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> * review grumbles & clarity * fix review grumbles * Add docs Co-authored-by: Andronik Ordian <write@reusable.software> Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> Co-authored-by: Andronik Ordian <write@reusable.software>
Preamble
This document aims to describe the purpose, functionality, and implementation of the host for Polkadot's parachains functionality - that is, the software which provides security and advancement for constituent parachains. It is not for the implementer of a specific parachain but rather for the implementer of the Parachain Host. In practice, this is for the implementers of Polkadot in general.
There are a number of other documents describing the research in more detail. All referenced documents will be linked here and should be read alongside this document for the best understanding of the full picture. However, this is the only document which aims to describe key aspects of Polkadot's particular instantiation of much of that research down to low-level technical details and software architecture.