Bastian Köcher
f894c05013
* Fix missing block number issue on forced canonicalization There is this issue about missing block numbers on forced canonicalization. I looked over the code now 10000 times and there are possible ways this can be triggered, but I don't really know how this is triggered. So, this pr is going to solve the symptom and not the cause. The block number to hash mapping is set when we import a new best block. Forced canonicalization will now stop at the best block and it will canonicalize the other blocks later when the best block moved. As the error reports indicated that this issue mainly happened on major sync, there should not be any forks, so not doing the canonicalization directly shouldn't be that harmful. All known implementations should import all blocks as best block on major sync anyway (I mean somewhere there is the bug, but I didn't yet found it). I will also do some changes to Cumulus around some potential culprit for this issue. Closes: https://github.com/paritytech/substrate/issues/12613 * Add some docs * Fix fix * Review comments * Review comments
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.
Community & Support
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.
Contributions & Code of Conduct
Please follow the contributions guidelines as outlined in docs/CONTRIBUTING.adoc.
In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
Security
The security policy and procedures can be found in docs/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.