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Ethereum consensus client in Rust
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Paul Hauner 103103e72e Address queue congestion in migrator (#1923) 
## Issue Addressed

*Should* address #1917

## Proposed Changes

Stops the `BackgroupMigrator` rx channel from backing up with big `BeaconState` messages.

Looking at some logs from my Medalla node, we can see a discrepancy between the head finalized epoch and the migrator finalized epoch:

```
Nov 17 16:50:21.606 DEBG Head beacon block                       slot: 129214, root: 0xbc7a…0b99, finalized_epoch: 4033, finalized_root: 0xf930…6562, justified_epoch: 4035, justified_root: 0x206b…9321, service: beacon
Nov 17 16:50:21.626 DEBG Batch processed                         service: sync, processed_blocks: 43, last_block_slot: 129214, chain: 8274002112260436595, first_block_slot: 129153, batch_epoch: 4036
Nov 17 16:50:21.626 DEBG Chain advanced                          processing_target: 4036, new_start: 4036, previous_start: 4034, chain: 8274002112260436595, service: sync
Nov 17 16:50:22.162 DEBG Completed batch received                awaiting_batches: 5, blocks: 47, epoch: 4048, chain: 8274002112260436595, service: sync
Nov 17 16:50:22.162 DEBG Requesting batch                        start_slot: 129601, end_slot: 129664, downloaded: 0, processed: 0, state: Downloading(16Uiu2HAmG3C3t1McaseReECjAF694tjVVjkDoneZEbxNhWm1nZaT, 0 blocks, 1273), epoch: 4050, chain: 8274002112260436595, service: sync
Nov 17 16:50:22.654 DEBG Database compaction complete            service: beacon
Nov 17 16:50:22.655 INFO Starting database pruning               new_finalized_epoch: 2193, old_finalized_epoch: 2192, service: beacon
```

I believe this indicates that the migrator rx has a backed-up queue of `MigrationNotification` items which each contain a `BeaconState`.

## TODO

- [x] Remove finalized state requirement for op-pool
2020-11-17 23:11:26 +00:00
.github Remove macos tests (#1687) 2020-09-30 01:27:36 +00:00
account_manager Release v0.3.4 (#1894) 2020-11-13 06:06:35 +00:00
beacon_node Address queue congestion in migrator (#1923) 2020-11-17 23:11:26 +00:00
book Add Pyrmont testnet (#1904) 2020-11-16 05:11:35 +00:00
boot_node Release v0.3.4 (#1894) 2020-11-13 06:06:35 +00:00
common Added fn to count unicode characters (#1903) 2020-11-16 09:30:34 +00:00
consensus Avoid some allocations in BlockSignatureVerifier (#1922) 2020-11-17 06:31:01 +00:00
crypto Update tiny-bip39 dependency (#1887) 2020-11-12 00:46:33 +00:00
hooks Add a flag to make lighthouse portable across machines (#1423) 2020-07-31 05:00:39 +00:00
lcli Release v0.3.4 (#1894) 2020-11-13 06:06:35 +00:00
lighthouse Add Pyrmont testnet (#1904) 2020-11-16 05:11:35 +00:00
remote_signer Update remote signer README (#1870) 2020-11-07 03:06:17 +00:00
scripts Release v0.3.4 (#1894) 2020-11-13 06:06:35 +00:00
testing Validate eth1 chain id (#1877) 2020-11-16 23:10:42 +00:00
validator_client Release v0.3.4 (#1894) 2020-11-13 06:06:35 +00:00
.dockerignore Ensure .git is copied into docker (#1462) 2020-08-05 03:05:36 +00:00
.editorconfig Add editorconfig template 2019-03-11 15:09:57 +11:00
.gitignore Implement slashing protection interchange format (#1544) 2020-10-02 01:42:27 +00:00
.gitmodules Replace EF tests submodule with a makefile 2019-09-08 04:19:54 +10:00
bors.toml Remove macos tests (#1687) 2020-09-30 01:27:36 +00:00
Cargo.lock Release v0.3.4 (#1894) 2020-11-13 06:06:35 +00:00
Cargo.toml [Remote signer] Fold signer into Lighthouse repository (#1852) 2020-11-06 06:17:11 +00:00
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 Release v0.3.4 (#1894) 2020-11-13 06:06:35 +00:00
LICENSE Update License to Apache 2.0 2019-04-15 16:47:35 +10:00
Makefile [Remote signer] Fold signer into Lighthouse repository (#1852) 2020-11-06 06:17:11 +00:00
README.md Add link to Lighthouse mailing list (#1913) 2020-11-16 06:28:11 +00:00

README.md

Lighthouse: Ethereum 2.0

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

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🚨🚨🚨 Note: Lighthouse is not yet ready to produce mainnet deposits. The developers will require some time to test against the mainnet deposit contract, once it is released. DO NOT SUBMIT VALIDATOR DEPOSITS WITH LIGHTHOUSE. 🚨🚨🚨

Overview

Lighthouse is:

  • Fully open-source, licensed under Apache 2.0.
  • Security-focused. Fuzzing has begun and security reviews are underway.
  • 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 and private individuals.
  • Actively involved in the specification and security analysis of the Ethereum 2.0 specification.

Like all Ethereum 2.0 clients, Lighthouse is a work-in-progress.

Eth2 Deposit Contract

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

Development Status

Current development overview:

  • Specification v1.0.0 implemented, optimized and passing test vectors.
  • Rust-native libp2p with Gossipsub and Discv5.
  • RESTful JSON API via HTTP server.
  • Events via WebSocket.
  • Metrics via Prometheus.

Roadmap

  • April 2019: Inital single-client testnets.
  • September 2019: Inter-operability with other Ethereum 2.0 clients.
  • Q1 2020: lighthouse-0.1.0 release: All major phase 0 features implemented.
  • Q2 2020: Public, multi-client testnet with user-facing functionality.
  • Q2 2020: Third-party security review.
  • Q4 2020: Long-lived, multi-client Beacon Chain testnet
  • Q4 2020: Additional third-party security reviews.
  • Q4 2020: Production Beacon Chain (tentative).

Documentation

The Lighthouse Book contains information for testnet users and developers.

If you'd like some background on Sigma Prime, please see the Lighthouse Update #00 blog post or sigmaprime.io.

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).