Ethereum consensus client in Rust
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Michael Sproul a290a3c537 Add configurable block replayer (#2863)
## Issue Addressed

Successor to #2431

## Proposed Changes

* Add a `BlockReplayer` struct to abstract over the intricacies of calling `per_slot_processing` and `per_block_processing` while avoiding unnecessary tree hashing.
* Add a variant of the forwards state root iterator that does not require an `end_state`.
* Use the `BlockReplayer` when reconstructing states in the database. Use the efficient forwards iterator for frozen states.
* Refactor the iterators to remove `Arc<HotColdDB>` (this seems to be neater than making _everything_ an `Arc<HotColdDB>` as I did in #2431).

Supplying the state roots allow us to avoid building a tree hash cache at all when reconstructing historic states, which saves around 1 second flat (regardless of `slots-per-restore-point`). This is a small percentage of worst-case state load times with 200K validators and SPRP=2048 (~15s vs ~16s) but a significant speed-up for more frequent restore points: state loads with SPRP=32 should be now consistently <500ms instead of 1.5s (a ~3x speedup).

## Additional Info

Required by https://github.com/sigp/lighthouse/pull/2628
2021-12-21 06:30:52 +00:00
.github Kintsugi review comments (#2831) 2021-12-02 14:29:59 +11:00
account_manager Remove old uses of testnet 2021-12-02 14:26:55 +11:00
beacon_node Add configurable block replayer (#2863) 2021-12-21 06:30:52 +00:00
book Minor Edit on Port Forward Reference (#2867) 2021-12-19 22:18:50 +00:00
boot_node Bump crate versions (#2829) 2021-12-02 14:29:57 +11:00
common Enable mallinfo2 behind feature flag (#2864) 2021-12-15 20:39:50 +00:00
consensus Add configurable block replayer (#2863) 2021-12-21 06:30:52 +00:00
crypto Kintsugi review comments (#2831) 2021-12-02 14:29:59 +11:00
lcli Add configurable block replayer (#2863) 2021-12-21 06:30:52 +00:00
lighthouse v1.1.6 Fork Choice changes (#2822) 2021-12-13 20:43:22 +00:00
scripts Fix name collision in script (#2678) 2021-10-05 22:54:11 +00:00
slasher Bump crate versions (#2829) 2021-12-02 14:29:57 +11:00
testing Add configurable block replayer (#2863) 2021-12-21 06:30:52 +00:00
validator_client 1.57.0 lints (#2850) 2021-12-03 04:44:30 +00:00
.dockerignore Update spec tests to v1.1.0-beta.4 (#2548) 2021-09-25 05:58:35 +00:00
.editorconfig Add editorconfig template 2019-03-11 15:09:57 +11:00
.gitignore Delete uncompressed genesis states (#2092) 2020-12-16 03:44:05 +00:00
.gitmodules Replace EF tests submodule with a makefile 2019-09-08 04:19:54 +10:00
bors.toml Add Windows to Bors config (#2358) 2021-05-20 00:23:08 +00:00
Cargo.lock Unban peers at the swarm level when purged (#2855) 2021-12-20 23:45:21 +00:00
Cargo.toml Kintsugi review comments (#2831) 2021-12-02 14:29:59 +11:00
CONTRIBUTING.md Update CONTRIBUTING.md (#751) 2020-01-03 10:45:53 +11:00
Cross.toml Ensure RUSTFLAGS is passed through on cross compile (#1529) 2020-08-17 10:06:06 +00:00
Dockerfile Update docker images to Ubuntu latest (#2862) 2021-12-15 07:44:44 +00:00
Dockerfile.cross Update docker images to Ubuntu latest (#2862) 2021-12-15 07:44:44 +00:00
LICENSE Update License to Apache 2.0 2019-04-15 16:47:35 +10:00
Makefile Kintsugi review comments (#2831) 2021-12-02 14:29:59 +11:00
README.md Fix readme typo (#2312) 2021-04-14 02:30:54 +00:00
SECURITY.md Add how users should report security vulnerabilities for this repository (#2562) 2021-09-07 01:54:05 +00:00

Lighthouse: Ethereum 2.0

An open-source Ethereum 2.0 client, written in Rust and maintained by Sigma Prime.

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Overview

Lighthouse is:

  • Ready for use on Eth2 mainnet.
  • Fully open-source, licensed under Apache 2.0.
  • Security-focused. Fuzzing techniques have been continuously applied and several external security reviews have been performed.
  • Built in Rust, a modern language providing unique safety guarantees and excellent performance (comparable to C++).
  • Funded by various organisations, including Sigma Prime, the Ethereum Foundation, ConsenSys, the Decentralization Foundation and private individuals.
  • Actively involved in the specification and security analysis of the Ethereum 2.0 specification.

Eth2 Deposit Contract

The Lighthouse team acknowledges 0x00000000219ab540356cBB839Cbe05303d7705Fa as the canonical Eth2 deposit contract address.

Documentation

The Lighthouse Book contains information for users and developers.

The Lighthouse team maintains a blog at lighthouse.sigmaprime.io which contains periodical progress updates, roadmap insights and interesting findings.

Branches

Lighthouse maintains two permanent branches:

  • stable: Always points to the latest stable release.
    • This is ideal for most users.
  • unstable: Used for development, contains the latest PRs.
    • Developers should base their PRs on this branch.

Contributing

Lighthouse welcomes contributors.

If you are looking to contribute, please head to the Contributing section of the Lighthouse book.

Contact

The best place for discussion is the Lighthouse Discord server. Alternatively, you may use the sigp/lighthouse gitter.

Sign up to the Lighthouse Development Updates mailing list for email notifications about releases, network status and other important information.

Encrypt sensitive messages using our PGP key.

Donations

Lighthouse is an open-source project and a public good. Funding public goods is hard and we're grateful for the donations we receive from the community via:

  • Gitcoin Grants.
  • Ethereum address: 0x25c4a76E7d118705e7Ea2e9b7d8C59930d8aCD3b (donation.sigmaprime.eth).