343cc4fa43
Also implements transactional block persistence. Two issues in the transaction processing code have been discovered that might affect other usages such as the CALL instruction. The main fix gets us past block 49000. You may need to clean up your database.
Nimbus: an Ethereum 2.0 Sharding Client for Resource-Restricted Devices
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Rationale
Nimbus: an Ethereum 2.0 Sharding Client
Building & Testing
Prerequisites
- A recent version of Nim
- We use the version in the Status fork
- Follow the Nim installation instructions or use choosenim to manage your Nim versions
- A recent version of Facebook's RocksDB
- Compile from source or use the package manager of your OS; for example, Debian, Ubuntu, and Fedora have working RocksDB packages
Obtaining the prerequisites through the Nix package manager
Users of the Nix package manager can install all prerequisites simply by running:
nix-shell nimbus.nix
Build & Install
We use Nimble to manage dependencies and run tests.
To build and install Nimbus in your home folder, just execute:
nimble install
After a succesful installation, running nimbus --help will provide you with a list of
the available command-line options. To start syncing with mainnet, just execute nimbus
without any parameters.
To execute all tests:
nimble test
Our Wiki provides additional helpful information for debugging individual test cases and for pairing Nimbus with a locally running copy of Geth.
Troubleshooting
Sometimes, the build will fail even though the latest CI is green - here are a few tips to handle this:
- Wrong Nim version
- We depend on many bleeding-edge features - Nim regressions often happen
- Use the Status fork of Nim
- Wrong versions of dependencies
- nimble dependency tracking often breaks due to its global registry
- wipe the nimble folder and try again
- C compile or link fails
- Nim compile cache is pretty buggy and sometimes will fail to recompile
- wipe your nimcache folder
License
Licensed under both of the following:
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license: LICENSE-MIT or http://opensource.org/licenses/MIT