Lighthouse Merge F2F

This repository contains various resources used by the Lighthouse team for the Merge F2F in October 2021.

See the "Merge F2F" PR for more information about Lighthouse and the Merge F2F.

M2

Tracker

• Geth: ✅
• Nethermind: ✅
• Besu: Blocked on Besu
• Erigon: They have not yet met M1.
• EthereumJS: We are waiting on a fix from EthereumJS.

Reproducing the M2 testnets

The directories starting with m2_ are reproducible examples of Lighthouse meeting the M2 milestones.

• The m2_lighthouse directory contains scripts required to run Lighthouse for all the M2 testnets.
• The m2_<EL-team> directories contain instructions for running the M2 milstone for Lighthouse and that client team.

For example, to run "M2 Lighthouse/Geth", go to m2_geth and follow the readme there.

Note

When running Lighthouse without enough peers you'll see this log:

Oct 02 16:49:58.013 WARN Could not publish message               error: InsufficientPeers, service: libp2p

You can just ignore it, the chain will still build out fine. Bonus points to anyone who makes a PR that allows pushing that log to down to debug with a CLI flag.

M3

To run an M3 testnet we need the EL client to provide a block that has a total difficulty < TTD, and then a child of that block that has a total difficulty >= TTD. As of 2021/10/02, none of the EL teams have this ready. We are therefore unable to proceed.

Once they're ready, I think we can just cp m2_lighthouse m3_lighthouse and then change the lcli fork-epochs in the ./start_beacon_node.sh script to something like:

	--altair-fork-epoch 1 \
	--merge-fork-epoch 2 \