Ethereum consensus client in Rust
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Age Manning 8dd9249177 Enforce a timeout on peer disconnect (#3757)
On heavily crowded networks, we are seeing many attempted connections to our node every second. 

Often these connections come from peers that have just been disconnected. This can be for a number of reasons including: 
- We have deemed them to be not as useful as other peers
- They have performed poorly
- They have dropped the connection with us
- The connection was spontaneously lost
- They were randomly removed because we have too many peers

In all of these cases, if we have reached or exceeded our target peer limit, there is no desire to accept new connections immediately after the disconnect from these peers. In fact, it often costs us resources to handle the established connections and defeats some of the logic of dropping them in the first place. 

This PR adds a timeout, that prevents recently disconnected peers from reconnecting to us.

Technically we implement a ban at the swarm layer to prevent immediate re connections for at least 10 minutes. I decided to keep this light, and use a time-based LRUCache which only gets updated during the peer manager heartbeat to prevent added stress of polling a delay map for what could be a large number of peers.

This cache is bounded in time. An extra space bound could be added should people consider this a risk.

Co-authored-by: Diva M <divma@protonmail.com>
2023-02-14 03:25:42 +00:00
.cargo Switch allocator to jemalloc (#3697) 2023-01-20 04:19:29 +00:00
.github Invalid cross build feature flag (#3959) 2023-02-13 03:32:03 +00:00
account_manager Clippy lints for rust 1.66 (#3810) 2022-12-16 04:04:00 +00:00
beacon_node Enforce a timeout on peer disconnect (#3757) 2023-02-14 03:25:42 +00:00
book Remove participation rate from API docs (#3955) 2023-02-09 04:31:22 +00:00
boot_node Release v3.4.0 (#3862) 2023-01-11 03:27:08 +00:00
common Enforce a timeout on peer disconnect (#3757) 2023-02-14 03:25:42 +00:00
consensus Tweaks to reward APIs (#3957) 2023-02-10 06:19:42 +00:00
crypto Verify execution block hashes during finalized sync (#3794) 2023-01-09 03:11:59 +00:00
database_manager Super small improvement: Remove unnecessary mut (#3736) 2022-11-21 03:15:54 +00:00
lcli Switch allocator to jemalloc (#3697) 2023-01-20 04:19:29 +00:00
lighthouse Self rate limiting dev flag (#3928) 2023-02-08 02:18:53 +00:00
scripts Enable proposer boost re-orging (#2860) 2022-12-13 09:57:26 +00:00
slasher Clippy lints for rust 1.66 (#3810) 2022-12-16 04:04:00 +00:00
testing update antithesis dockerfile (#3883) 2023-01-20 00:46:55 +00:00
validator_client Add attestation duty slot metric (#2704) 2023-02-09 23:51:17 +00:00
.dockerignore Exclude EE build dirs from Docker context (#3174) 2022-05-09 23:43:31 +00:00
.editorconfig Add editorconfig template 2019-03-11 15:09:57 +11:00
.gitignore Allow setting web3signer version through environment (#3368) 2022-07-27 03:20:01 +00:00
.gitmodules Replace EF tests submodule with a makefile 2019-09-08 04:19:54 +10:00
bors.toml Switch allocator to jemalloc (#3697) 2023-01-20 04:19:29 +00:00
Cargo.lock Enforce a timeout on peer disconnect (#3757) 2023-02-14 03:25:42 +00:00
Cargo.toml Unpin fixed-hash (#3917) 2023-02-06 04:18:03 +00:00
CONTRIBUTING.md Book spelling and grammar corrections (#3659) 2022-10-28 03:23:50 +00:00
Cross.toml Ensure protoc is installed for release CI (#3621) 2022-10-03 23:09:25 +00:00
Dockerfile Libp2p v0.48.0 upgrade (#3547) 2022-09-29 01:50:11 +00:00
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LICENSE Update License to Apache 2.0 2019-04-15 16:47:35 +10:00
Makefile Update dependencies (#3946) 2023-02-08 02:18:54 +00:00
README.md Fix some dead links in markdown files (#3885) 2023-01-17 05:13:49 +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 consensus client

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

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Overview

Lighthouse is:

  • Ready for use on Ethereum consensus 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 proof-of-stake consensus specification.

Staking Deposit Contract

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

Documentation

The Lighthouse Book contains information for users and developers.

The Lighthouse team maintains a blog at lighthouse-blog.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.

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).