Collection of know-how and tips for running mev-boost-relay at scale, based on the experience from operating the Flashbots relays.

Last updates:

• 2023-03-10 by @metachris: details about the Capella upgrades and DB truncating
• 2023-03-29 by @metachris: details about Capella-ready relay version v1.0.0-alpha2

Table of contents

Links

• https://github.com/flashbots/mev-boost-relay
• https://github.com/flashbots/mev-boost-relay/issues
• Forum: https://collective.flashbots.net/c/relays/15
• Relay Data API: https://flashbots.github.io/relay-specs

<aside> 💡 Capella Upgrades

Overview of Capella changes across the mev-boost stack: https://bit.ly/3ZsDEd8

Starting with mev-boost-relay v1.0.0-alpha2, any CL client supporting the payload_attributes SSE event can be used. As of now, this is either

1. Prysm v4.0.0+
2. Lighthouse v4.0.1+ (with -always-prepare-payload and -prepare-payload-lookahead 12000 flags and some junk feeRecipeint) </aside>

Architecture diagram

This is a high-level overview of the relay infrastructure (arrows indicating the direction of requests).

(source: Excalidraw)