## Issue Addressed
#4738
## Proposed Changes
See the above issue for details. Went with option #2 to use the async reqwest client in `Eth2NetworkConfig` and propagate the async-ness.
## Issue Addressed
N/A
## Proposed Changes
Adds the Chiado (Gnosis testnet) network to the builtin one.
## Additional Info
It's a fairly trivial change all things considered as the preset already exists, so shouldn't be hard to maintain.
It compiles and seems to work, but I'm sure I missed something?
Co-authored-by: Paul Hauner <paul@paulhauner.com>
## Issue Addressed
NA
## Proposed Changes
Add the Holesky network config as per 36e4ff2d51/custom_config_data.
Since the genesis state is ~190MB, I've opted to *not* include it in the binary and instead download it at runtime (see #4564 for context). To download this file we have:
- A hard-coded URL for a SigP-hosted S3 bucket with the Holesky genesis state. Assuming this download works correctly, users will be none the wiser that the state wasn't included in the binary (apart from some additional logs)
- If the user provides a `--checkpoint-sync-url` flag, then LH will download the genesis state from that server rather than our S3 bucket.
- If the user provides a `--genesis-state-url` flag, then LH will download the genesis state from that server regardless of the S3 bucket or `--checkpoint-sync-url` flag.
- Whenever a genesis state is downloaded it is checked against a checksum baked into the binary.
- A genesis state will never be downloaded if it's already included in the binary.
- There is a `--genesis-state-url-timeout` flag to tweak the timeout for downloading the genesis state file.
## Log Output
Example of log output when a state is downloaded:
```bash
Aug 23 05:40:13.424 INFO Logging to file path: "/Users/paul/.lighthouse/holesky/beacon/logs/beacon.log"
Aug 23 05:40:13.425 INFO Lighthouse started version: Lighthouse/v4.3.0-bd9931f+
Aug 23 05:40:13.425 INFO Configured for network name: holesky
Aug 23 05:40:13.426 INFO Data directory initialised datadir: /Users/paul/.lighthouse/holesky
Aug 23 05:40:13.427 INFO Deposit contract address: 0x4242424242424242424242424242424242424242, deploy_block: 0
Aug 23 05:40:13.427 INFO Downloading genesis state info: this may take some time on testnets with large validator counts, timeout: 60s, server: https://sigp-public-genesis-states.s3.ap-southeast-2.amazonaws.com/
Aug 23 05:40:29.895 INFO Starting from known genesis state service: beacon
```
Example of log output when there are no URLs specified:
```
Aug 23 06:29:51.645 INFO Logging to file path: "/Users/paul/.lighthouse/goerli/beacon/logs/beacon.log"
Aug 23 06:29:51.646 INFO Lighthouse started version: Lighthouse/v4.3.0-666a39c+
Aug 23 06:29:51.646 INFO Configured for network name: goerli
Aug 23 06:29:51.647 INFO Data directory initialised datadir: /Users/paul/.lighthouse/goerli
Aug 23 06:29:51.647 INFO Deposit contract address: 0xff50ed3d0ec03ac01d4c79aad74928bff48a7b2b, deploy_block: 4367322
The genesis state is not present in the binary and there are no known download URLs. Please use --checkpoint-sync-url or --genesis-state-url.
```
## Additional Info
I tested the `--genesis-state-url` flag with all 9 Goerli checkpoint sync servers on https://eth-clients.github.io/checkpoint-sync-endpoints/ and they all worked 🎉
My IDE eagerly formatted some `Cargo.toml`. I've disabled it but I don't see the value in spending time reverting the changes that are already there.
I also added the `GenesisStateBytes` enum to avoid an unnecessary clone on the genesis state bytes baked into the binary. This is not a huge deal on Mainnet, but will become more relevant when testing with big genesis states.
When we do a fresh checkpoint sync we're downloading the genesis state to check the `genesis_validators_root` against the finalised state we receive. This is not *entirely* pointless, since we verify the checksum when we download the genesis state so we are actually guaranteeing that the finalised state is on the same network. There might be a smarter/less-download-y way to go about this, but I've run out of cycles to figure that out. Perhaps we can grab it in the next release?
## Issue Addressed
updates underlying dependencies and removes the ignored `RUSTSEC`'s for `cargo audit`.
Also switches `procinfo` to `procfs` on `eth2` to remove the `nom` warning, `procinfo` is unmaintained see [here](https://github.com/danburkert/procinfo-rs/issues/46).
## Issue Addressed
Addresses [#4401](https://github.com/sigp/lighthouse/issues/4401)
## Proposed Changes
Shift some constants into ```ChainSpec``` and remove the constant values from code space.
## Additional Info
I mostly used ```MainnetEthSpec::default_spec()``` for getting ```ChainSpec```. I wonder Did I make a mistake about that.
Co-authored-by: armaganyildirak <armaganyildirak@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
Co-authored-by: Age Manning <Age@AgeManning.com>
Co-authored-by: Diva M <divma@protonmail.com>
## Issue Addressed
Upgrade libp2p to v0.52
## Proposed Changes
- **Workflows**: remove installation of `protoc`
- **Book**: remove installation of `protoc`
- **`Dockerfile`s and `cross`**: remove custom base `Dockerfile` for cross since it's no longer needed. Remove `protoc` from remaining `Dockerfiles`s
- **Upgrade `discv5` to `v0.3.1`:** we have some cool stuff in there: no longer needs `protoc` and faster ip updates on cold start
- **Upgrade `prometheus` to `0.21.0`**, now it no longer needs encoding checks
- **things that look like refactors:** bunch of api types were renamed and need to be accessed in a different (clearer) way
- **Lighthouse network**
- connection limits is now a behaviour
- banned peers no longer exist on the swarm level, but at the behaviour level
- `connection_event_buffer_size` now is handled per connection with a buffer size of 4
- `mplex` is deprecated and was removed
- rpc handler now logs the peer to which it belongs
## Additional Info
Tried to keep as much behaviour unchanged as possible. However, there is a great deal of improvements we can do _after_ this upgrade:
- Smart connection limits: Connection limits have been checked only based on numbers, we can now use information about the incoming peer to decide if we want it
- More powerful peer management: Dial attempts from other behaviours can be rejected early
- Incoming connections can be rejected early
- Banning can be returned exclusively to the peer management: We should not get connections to banned peers anymore making use of this
- TCP Nat updates: We might be able to take advantage of confirmed external addresses to check out tcp ports/ips
Co-authored-by: Age Manning <Age@AgeManning.com>
Co-authored-by: Akihito Nakano <sora.akatsuki@gmail.com>
We now officially have ipv6 support. The mainnet bootnodes have been updated to support ipv6. This PR updates lighthouse's internal bootnodes for mainnet to avoid fetching them on initial load.
Done in different PRs so that they can reviewed independently, as it's likely this won't be merged before I leave
Includes resolution for #4080
- [ ] #4299
- [ ] #4318
- [ ] #4320
Co-authored-by: Diva M <divma@protonmail.com>
Co-authored-by: Age Manning <Age@AgeManning.com>
This PR address the following spec change: https://github.com/ethereum/consensus-specs/pull/3312
Instead of subscribing to a long-lived subnet for every attached validator to a beacon node, all beacon nodes will subscribe to `SUBNETS_PER_NODE` long-lived subnets. This is currently set to 2 for mainnet.
This PR does not include any scoring or advanced discovery mechanisms. A future PR will improve discovery and we can implement scoring after the next hard fork when we expect all client teams and all implementations to respect this spec change.
This will be a significant change in the subnet network structure for consensus clients and we will likely have to monitor and tweak our peer management logic.
## Issue Addressed
NA
## Proposed Changes
Sets the mainnet Capella fork epoch as per https://github.com/ethereum/consensus-specs/pull/3300
## Additional Info
I expect the `ef_tests` to fail until we get a compatible consensus spec tests release.
Currently Lighthouse will remain uncontactable if users port forward a port that is not the same as the one they are listening on.
For example, if Lighthouse runs with port 9000 TCP/UDP locally but a router is configured to pass 9010 externally to the lighthouse node on 9000, other nodes on the network will not be able to reach the lighthouse node.
This occurs because Lighthouse does not update its ENR TCP port on external socket discovery. The intention was always that users should use `--enr-tcp-port` to customise this, but this is non-intuitive.
The difficulty arises because we have no discovery mechanism to find our external TCP port. If we discovery a new external UDP port, we must guess what our external TCP port might be. This PR assumes the external TCP port is the same as the external UDP port (which may not be the case) and thus updates the TCP port along with the UDP port if the `--enr-tcp-port` flag is not set.
Along with this PR, will be added documentation to the Lighthouse book so users can correctly understand and configure their ENR to maximize Lighthouse's connectivity.
This relies on https://github.com/sigp/discv5/pull/166 and we should wait for a new release in discv5 before adding this PR.
## Proposed Changes
Remove built-in support for Ropsten and Kiln via the `--network` flag. Both testnets are long dead and deprecated.
This shaves about 30MiB off the binary size, from 135MiB to 103MiB (maxperf), or 165MiB to 135MiB (release).
## Issue Addressed
Cleans up all the remnants of 4844 in capella. This makes sure when 4844 is reviewed there is nothing we are missing because it got included here
## Proposed Changes
drop a bomb on every 4844 thing
## Additional Info
Merge process I did (locally) is as follows:
- squash merge to produce one commit
- in new branch off unstable with the squashed commit create a `git revert HEAD` commit
- merge that new branch onto 4844 with `--strategy ours`
- compare local 4844 to remote 4844 and make sure the diff is empty
- enjoy
Co-authored-by: Paul Hauner <paul@paulhauner.com>
## Proposed Changes
Update the Gnosis chain bootnodes. The current list of Gnosis bootnodes were abandoned at some point before the Gnosis merge and are now failing to bootstrap peers. There's a workaround list of bootnodes here: https://docs.gnosischain.com/updates/20221208-temporary-bootnodes
The list from this PR represents the long-term bootnodes run by the Gnosis team. We will also try to set up SigP bootnodes for Gnosis chain at some point.
## Issue Addressed
Updates discv5
Pending on
- [x] #3547
- [x] Alex upgrades his deps
## Proposed Changes
updates discv5 and the enr crate. The only relevant change would be some clear indications of ipv4 usage in lighthouse
## Additional Info
Functionally, this should be equivalent to the prev version.
As draft pending a discv5 release
## Issue Addressed
NA
## Proposed Changes
Update bootnodes for Prater. There are new IP addresses for the Sigma Prime nodes. Teku and Nimbus nodes were also added.
## Additional Info
Related: 24760cd4b4
## Issue Addressed
- Resolves#3338
## Proposed Changes
This PR adds a new `--network goerli` flag that reuses the [Prater network configs](https://github.com/sigp/lighthouse/tree/stable/common/eth2_network_config/built_in_network_configs/prater).
As you'll see in #3338, there are several approaches to the problem of the Goerli/Prater alias. This approach achieves:
1. No duplication of the genesis state between Goerli and Prater.
- Upside: the genesis state for Prater is ~17mb, duplication would increase the size of the binary by that much.
2. When the user supplies `--network goerli`, they will get a datadir in `~/.lighthouse/goerli`.
- Upside: our docs stay correct when they declare a datadir is located at `~/.lighthouse/{network}`
- Downside: switching from `--network prater` to `--network goerli` will require some manual migration.
3. When using `--network goerli`, the [`config/spec`](https://ethereum.github.io/beacon-APIs/#/Config/getSpec) endpoint will return a [`CONFIG_NAME`](02a2b71d64/configs/mainnet.yaml (L11)) of "prater".
- Upside: VC running `--network prater` will still think it's on the same network as one using `--network goerli`.
- Downside: potentially confusing.
#3348 achieves the same goal as this PR with a different approach and set of trade-offs.
## Additional Info
### Notes for reviewers:
In e4896c2682 you'll see that I remove the `$name_str` by just using `stringify!($name_ident)` instead. This is a simplification that should have have been there in the first place.
Then, in 90b5e22fca I reclaim that second parameter with a new purpose; to specify the directory from which to load configs.
## Issue Addressed
NA
## Proposed Changes
Adds the configuration for the upcoming merge of the Ropsten network, as per:
https://github.com/eth-clients/merge-testnets/pull/9
Use the Ropsten network with: `lighthouse --network ropsten`
## Additional Info
This is still a work-in-progress. We should wait for the eth-clients/merge-testnets PR to be approved before merging this into our `unstable`.
## Proposed Changes
Mitigate the fork choice attacks described in [_Three Attacks on Proof-of-Stake Ethereum_](https://arxiv.org/abs/2110.10086) by enabling proposer boost @ 70% on mainnet.
Proposer boost has been running with stability on Prater for a few months now, and is safe to roll out gradually on mainnet. I'll argue that the financial impact of rolling out gradually is also minimal.
Consider how a proposer-boosted validator handles two types of re-orgs:
## Ex ante re-org (from the paper)
In the mitigated attack, a malicious proposer releases their block at slot `n + 1` late so that it re-orgs the block at the slot _after_ them (at slot `n + 2`). Non-boosting validators will follow this re-org and vote for block `n + 1` in slot `n + 2`. Boosted validators will vote for `n + 2`. If the boosting validators are outnumbered, there'll be a re-org to the malicious block from `n + 1` and validators applying the boost will have their slot `n + 2` attestations miss head (and target on an epoch boundary). Note that all the attesters from slot `n + 1` are doomed to lose their head vote rewards, but this is the same regardless of boosting.
Therefore, Lighthouse nodes stand to miss slightly more head votes than other nodes if they are in the minority while applying the proposer boost. Once the proposer boost nodes gain a majority, this trend reverses.
## Ex post re-org (using the boost)
The other type of re-org is an ex post re-org using the strategy described here: https://github.com/sigp/lighthouse/pull/2860. With this strategy, boosted nodes will follow the attempted re-org and again lose a head vote if the re-org is unsuccessful. Once boosting is widely adopted, the re-orgs will succeed and the non-boosting validators will lose out.
I don't think there are (m)any validators applying this strategy, because it is irrational to attempt it before boosting is widely adopted. Therefore I think we can safely ignore this possibility.
## Risk Assessment
From observing re-orgs on mainnet I don't think ex ante re-orgs are very common. I've observed around 1 per day for the last month on my node (see: https://gist.github.com/michaelsproul/3b2142fa8fe0ff767c16553f96959e8c), compared to 2.5 ex post re-orgs per day.
Given one extra slot per day where attesting will cause a missed head vote, each individual validator has a 1/32 chance of being assigned to that slot. So we have an increase of 1/32 missed head votes per validator per day in expectation. Given that we currently see ~7 head vote misses per validator per day due to late/missing blocks (and re-orgs), this represents only a (1/32)/7 = 0.45% increase in missed head votes in expectation. I believe this is so small that we shouldn't worry about it. Particularly as getting proposer boost deployed is good for network health and may enable us to drive down the number of late blocks over time (which will decrease head vote misses).
## TL;DR
Enable proposer boost now and release ASAP, as financial downside is a 0.45% increase in missed head votes until widespread adoption.
