Charon timeouts requests to /eth/v2/debug/beacon/states/head

[gsora]

🐞 Bug Report

Charon v0.19.0 and v0.19.1 time out duties requests if the cluster has more than 150 validators in the cluster.

This is due to a bug introduced in go-eth2-client version v0.19.8, which queries /eth/v2/debug/beacon/states/head if the http.Validators() function call has more than 150 validators as parameter.

Since Charon needs the list of validators to run its workflow, affected cluster are not able to continue working.

Has this worked before in a previous version?

Charon v0.18.x versions do not exhibit this bug because they rely on an older version of go-eth2-client.

🔬 Minimal Reproduction

1. create a cluster with more than 150 validators
2. start Charon

🌍 Your Environment

Any operating system will reproduce this issue.

What version of Charon are you running? (Which release)

v0.19.0, v0.19.1.