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Remove builder redundancy (#3294)

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## Issue Addressed

This PR is a subset of the changes in #3134. Unstable will still not function correctly with the new builder spec once this is merged, #3134 should be used on testnets

## Proposed Changes

- Removes redundancy in "builders" (servers implementing the builder spec)
- Renames `payload-builder` flag to `builder`
- Moves from old builder RPC API to new HTTP API, but does not implement the validator registration API (implemented in https://github.com/sigp/lighthouse/pull/3194)



Co-authored-by: sean <seananderson33@gmail.com>
Co-authored-by: realbigsean <sean@sigmaprime.io>
This commit is contained in:
realbigsean
2022-07-01 01:15:19 +00:00
parent d40c76e667
commit a7da0677d5
25 changed files with 564 additions and 374 deletions
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106
beacon_node/execution_layer/src/engines.rs
View File

@@ -1,12 +1,9 @@
//! Provides generic behaviour for multiple execution engines, specifically fallback behaviour.
use crate::engine_api::{
Builder, EngineApi, Error as EngineApiError, ForkchoiceUpdatedResponse, PayloadAttributes,
PayloadId,
EngineApi, Error as EngineApiError, ForkchoiceUpdatedResponse, PayloadAttributes, PayloadId,
};
use crate::{BuilderApi, HttpJsonRpc};
use async_trait::async_trait;
use futures::future::join_all;
use crate::HttpJsonRpc;
use lru::LruCache;
use slog::{crit, debug, info, warn, Logger};
use std::future::Future;
@@ -97,9 +94,8 @@ impl<T> Engine<T> {
}
}
#[async_trait]
impl Builder for Engine<EngineApi> {
async fn notify_forkchoice_updated(
impl Engine<EngineApi> {
pub async fn notify_forkchoice_updated(
&self,
forkchoice_state: ForkChoiceState,
payload_attributes: Option<PayloadAttributes>,
@@ -128,34 +124,6 @@ impl Builder for Engine<EngineApi> {
}
}
#[async_trait]
impl Builder for Engine<BuilderApi> {
async fn notify_forkchoice_updated(
&self,
forkchoice_state: ForkChoiceState,
pa: Option<PayloadAttributes>,
log: &Logger,
) -> Result<ForkchoiceUpdatedResponse, EngineApiError> {
let payload_attributes = pa.ok_or(EngineApiError::InvalidBuilderQuery)?;
let response = self
.api
.forkchoice_updated_v1(forkchoice_state, Some(payload_attributes))
.await?;
if let Some(payload_id) = response.payload_id {
let key = PayloadIdCacheKey::new(&forkchoice_state, &payload_attributes);
self.payload_id_cache.lock().await.put(key, payload_id);
} else {
warn!(
log,
"Builder should have returned a payload_id for attributes {:?}", payload_attributes
);
}
Ok(response)
}
}
// This structure used to hold multiple execution engines managed in a fallback manner. This
// functionality has been removed following https://github.com/sigp/lighthouse/issues/3118 and this
// struct will likely be removed in the future.
@@ -165,15 +133,11 @@ pub struct Engines {
pub log: Logger,
}
pub struct Builders {
pub builders: Vec<Engine<BuilderApi>>,
pub log: Logger,
}
#[derive(Debug)]
pub enum EngineError {
Offline { id: String },
Api { id: String, error: EngineApiError },
BuilderApi { error: EngineApiError },
Auth { id: String },
}
@@ -422,66 +386,6 @@ impl Engines {
}
}
impl Builders {
pub async fn first_success_without_retry<'a, F, G, H>(
&'a self,
func: F,
) -> Result<H, Vec<EngineError>>
where
F: Fn(&'a Engine<BuilderApi>) -> G,
G: Future<Output = Result<H, EngineApiError>>,
{
let mut errors = vec![];
for builder in &self.builders {
match func(builder).await {
Ok(result) => return Ok(result),
Err(error) => {
debug!(
self.log,
"Builder call failed";
"error" => ?error,
"id" => &builder.id
);
errors.push(EngineError::Api {
id: builder.id.clone(),
error,
})
}
}
}
Err(errors)
}
pub async fn broadcast_without_retry<'a, F, G, H>(
&'a self,
func: F,
) -> Vec<Result<H, EngineError>>
where
F: Fn(&'a Engine<BuilderApi>) -> G,
G: Future<Output = Result<H, EngineApiError>>,
{
let func = &func;
let futures = self.builders.iter().map(|engine| async move {
func(engine).await.map_err(|error| {
debug!(
self.log,
"Builder call failed";
"error" => ?error,
"id" => &engine.id
);
EngineError::Api {
id: engine.id.clone(),
error,
}
})
});
join_all(futures).await
}
}
impl PayloadIdCacheKey {
fn new(state: &ForkChoiceState, attributes: &PayloadAttributes) -> Self {
Self {