Client Diversity: Teku VC <> Lighthouse BN does not work

[ybstaked]

See comment here: Consensys/teku#7397 (comment)

Hi @ybstaked this incompatibility is because we have implemented the config spec changes as per ethereum/consensus-specs#3375. It seems like Lighthouse hasn't implemented those yet. It's worth raising this issue on their Github, since we wouldn't revert to supporting old versions. In the meantime, instead of auto can just point to a specific network on the Teku VC side.

Client Versions

Teku VC: Version: 23.6.2
Lighthouse BN: Version: v4.3.0

Commands

Teku VC

teku validator-client --network=auto --log-include-validator-duties-enabled=true --log-include-events-enabled=true --metrics-enabled=true --metrics-host-allowlist=* --metrics-port=8081 --metrics-interface=0.0.0.0 --data-path=/data --validators-external-signer-public-keys="http://$POD_IP:5050/api/v1/eth2/publicKeys" --beacon-node-api-endpoint="http://cl-lighthouse-beacon.eth2-prater:5052" --validators-early-attestations-enabled=false --validators-external-signer-url="http://$POD_IP:5050" --validators-external-signer-timeout=5000 --log-color-enabled=false --validators-proposer-config=/data/new-fee-recipient.json --validators-builder-registration-default-enabled=true --validators-proposer-blinded-blocks-enabled=true

Errors

Failed to retrieve network spec from beacon node endpoint 'http://cl-lighthouse-beacon.eth2-prater:5052/'.
Details: Missing value for spec constant 'GOSSIP_MAX_SIZE'

Related

• Client Diversity: Teku VC <> Lighthouse BN does not work Consensys/teku#7397
• Client Diversity: Prysm VC <> Teku BN + Prysm VC <> Lighthouse BN does not work prysmaticlabs/prysm#12467
• Add SSZ support to validator block production endpoints #4531

[michaelsproul]

This is mostly an issue with Teku's VC, which as noted can be worked around by using --network=mainnet (rather than auto). So, it's not a hard incompatibility.

Even so, Lighthouse will gain the new config parameters on /eth/v1/config/spec when this PR is merged: #4426.

[michaelsproul]

Teku VC + Lighthouse BN should be working now, or at least isn't broken beacuse of this issue 😅

Closing, but please re-open if this is still a problem