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Allow per validator fee recipient via flag or file in validator client (similar to graffiti / graffiti-file) (#2924)

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## Issue Addressed

#2883 

## Proposed Changes

* Added `suggested-fee-recipient` & `suggested-fee-recipient-file` flags to validator client (similar to graffiti / graffiti-file implementation).
* Added proposer preparation service to VC, which sends the fee-recipient of all known validators to the BN via [/eth/v1/validator/prepare_beacon_proposer](https://github.com/ethereum/beacon-APIs/pull/178) api once per slot
* Added [/eth/v1/validator/prepare_beacon_proposer](https://github.com/ethereum/beacon-APIs/pull/178) api endpoint and preparation data caching
* Added cleanup routine to remove cached proposer preparations when not updated for 2 epochs

## Additional Info

Changed the Implementation following the discussion in #2883.



Co-authored-by: pk910 <philipp@pk910.de>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
Co-authored-by: Philipp K <philipp@pk910.de>
This commit is contained in:
Philipp K
2022-02-08 19:52:20 +00:00
parent d172c0b9fc
commit 5388183884
33 changed files with 1060 additions and 40 deletions
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2
beacon_node/beacon_chain/src/beacon_chain.rs
View File

@@ -3101,7 +3101,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
}
BeaconState::Merge(_) => {
let sync_aggregate = get_sync_aggregate()?;
let execution_payload = get_execution_payload(self, &state)?;
let execution_payload = get_execution_payload(self, &state, proposer_index)?;
BeaconBlock::Merge(BeaconBlockMerge {
slot,
proposer_index,

10
beacon_node/beacon_chain/src/execution_payload.rs
View File

@@ -204,14 +204,16 @@ pub fn validate_execution_payload_for_gossip<T: BeaconChainTypes>(
pub fn get_execution_payload<T: BeaconChainTypes>(
chain: &BeaconChain<T>,
state: &BeaconState<T::EthSpec>,
proposer_index: u64,
) -> Result<ExecutionPayload<T::EthSpec>, BlockProductionError> {
Ok(prepare_execution_payload_blocking(chain, state)?.unwrap_or_default())
Ok(prepare_execution_payload_blocking(chain, state, proposer_index)?.unwrap_or_default())
}
/// Wraps the async `prepare_execution_payload` function as a blocking task.
pub fn prepare_execution_payload_blocking<T: BeaconChainTypes>(
chain: &BeaconChain<T>,
state: &BeaconState<T::EthSpec>,
proposer_index: u64,
) -> Result<Option<ExecutionPayload<T::EthSpec>>, BlockProductionError> {
let execution_layer = chain
.execution_layer
@@ -219,7 +221,9 @@ pub fn prepare_execution_payload_blocking<T: BeaconChainTypes>(
.ok_or(BlockProductionError::ExecutionLayerMissing)?;
execution_layer
.block_on_generic(|_| async { prepare_execution_payload(chain, state).await })
.block_on_generic(|_| async {
prepare_execution_payload(chain, state, proposer_index).await
})
.map_err(BlockProductionError::BlockingFailed)?
}
@@ -240,6 +244,7 @@ pub fn prepare_execution_payload_blocking<T: BeaconChainTypes>(
pub async fn prepare_execution_payload<T: BeaconChainTypes>(
chain: &BeaconChain<T>,
state: &BeaconState<T::EthSpec>,
proposer_index: u64,
) -> Result<Option<ExecutionPayload<T::EthSpec>>, BlockProductionError> {
let spec = &chain.spec;
let execution_layer = chain
@@ -300,6 +305,7 @@ pub async fn prepare_execution_payload<T: BeaconChainTypes>(
timestamp,
random,
finalized_block_hash.unwrap_or_else(Hash256::zero),
proposer_index,
)
.await
.map_err(BlockProductionError::GetPayloadFailed)?;