What is validation node within the Relay?

Relays
1

I am trying to deploy and run mev-boost-relay.
In mev-boost flashbots relay diagram on (Notion – The all-in-one workspace for your notes, tasks, wikis, and databases.), I can see validation nodes. What are validation nodes? Is this just an executio node (for example, Geth) or flashbots block builder ? At mev-boost-relay source code, in cmd/tools/api.go, I can see BLOCKSIM_URI (default http://localhost:8545). Should I use this BLOCKSIM_URI parameter to connect to Geth node or block builder when launching the relay api ? Any help is appreciated. Thanks.

2

it’s a custom RPC for validating the block, the current implementation lives in GitHub - flashbots/builder: Flashbots MEV-Boost Block Builder. check out the validation flags and module

1 Like
4

Optimistic Relays do not perform block validations. If I do not set BLOCKSIM_URI, would Relay become an optimistic Relay? Thanks