In-memory tree states (#5533)

* Consensus changes

* EF tests

* lcli

* common and watch

* account manager

* cargo

* fork choice

* promise cache

* beacon chain

* interop genesis

* http api

* lighthouse

* op pool

* beacon chain misc

* parallel state cache

* store

* fix issues in store

* IT COMPILES

* Remove some unnecessary module qualification

* Revert Arced pubkey optimization (#5536)

* Merge remote-tracking branch 'origin/unstable' into tree-states-memory

* Fix caching, rebasing and some tests

* Remove unused deps

* Merge remote-tracking branch 'origin/unstable' into tree-states-memory

* Small cleanups

* Revert shuffling cache/promise cache changes

* Fix state advance bugs

* Fix shuffling tests

* Remove some resolved FIXMEs

* Remove StateProcessingStrategy

* Optimise withdrawals calculation

* Don't reorg if state cache is missed

* Remove inconsistent state func

* Fix beta compiler

* Rebase early, rebase often

* Fix state caching behaviour

* Update to milhouse release

* Fix on-disk consensus context format

* Merge remote-tracking branch 'origin/unstable' into tree-states-memory

* Squashed commit of the following:

commit 3a16649023
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Thu Apr 18 14:26:09 2024 +1000

    Fix on-disk consensus context format

* Keep indexed attestations, thanks Sean

* Merge branch 'on-disk-consensus-context' into tree-states-memory

* Merge branch 'unstable' into tree-states-memory

* Address half of Sean's review

* More simplifications from Sean's review

* Cache state after get_advanced_hot_state

beacon_node/http_api/src/attester_duties.rs

@@ -5,9 +5,7 @@ use beacon_chain::{BeaconChain, BeaconChainError, BeaconChainTypes};
 use eth2::types::{self as api_types};
 use slot_clock::SlotClock;
 use state_processing::state_advance::partial_state_advance;
-use types::{
-    AttestationDuty, BeaconState, ChainSpec, CloneConfig, Epoch, EthSpec, Hash256, RelativeEpoch,
-};
+use types::{AttestationDuty, BeaconState, ChainSpec, Epoch, EthSpec, Hash256, RelativeEpoch};
 
 /// The struct that is returned to the requesting HTTP client.
 type ApiDuties = api_types::DutiesResponse<Vec<api_types::AttesterData>>;
@@ -90,8 +88,7 @@ fn compute_historic_attester_duties<T: BeaconChainTypes>(
         if head.beacon_state.current_epoch() <= request_epoch {
             Some((
                 head.beacon_state_root(),
-                head.beacon_state
-                    .clone_with(CloneConfig::committee_caches_only()),
+                head.beacon_state.clone(),
                 execution_status.is_optimistic_or_invalid(),
             ))
         } else {

beacon_node/http_api/src/block_packing_efficiency.rs

@@ -279,7 +279,7 @@ pub fn get_block_packing_efficiency<T: BeaconChainTypes>(
     ));
 
     let pre_slot_hook =
-        |state: &mut BeaconState<T::EthSpec>| -> Result<(), PackingEfficiencyError> {
+        |_, state: &mut BeaconState<T::EthSpec>| -> Result<(), PackingEfficiencyError> {
             // Add attestations to `available_attestations`.
             handler.lock().add_attestations(state.slot())?;
             Ok(())

beacon_node/http_api/src/lib.rs

@@ -61,7 +61,6 @@ use slog::{crit, debug, error, info, warn, Logger};
 use slot_clock::SlotClock;
 use ssz::Encode;
 pub use state_id::StateId;
-use std::borrow::Cow;
 use std::future::Future;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use std::path::PathBuf;
@@ -864,10 +863,10 @@ pub fn serve<T: BeaconChainTypes>(
                                     None
                                 };
 
-                                let committee_cache = if let Some(ref shuffling) =
+                                let committee_cache = if let Some(shuffling) =
                                     maybe_cached_shuffling
                                 {
-                                    Cow::Borrowed(&**shuffling)
+                                    shuffling
                                 } else {
                                     let possibly_built_cache =
                                         match RelativeEpoch::from_epoch(current_epoch, epoch) {
@@ -876,16 +875,13 @@ pub fn serve<T: BeaconChainTypes>(
                                                     relative_epoch,
                                                 ) =>
                                             {
-                                                state
-                                                    .committee_cache(relative_epoch)
-                                                    .map(Cow::Borrowed)
+                                                state.committee_cache(relative_epoch).cloned()
                                             }
                                             _ => CommitteeCache::initialized(
                                                 state,
                                                 epoch,
                                                 &chain.spec,
-                                            )
-                                            .map(Cow::Owned),
+                                            ),
                                         }
                                         .map_err(|e| {
                                             match e {
@@ -933,7 +929,7 @@ pub fn serve<T: BeaconChainTypes>(
                                             {
                                                 cache_write.insert_committee_cache(
                                                     shuffling_id,
-                                                    &*possibly_built_cache,
+                                                    &possibly_built_cache,
                                                 );
                                             }
                                         }

beacon_node/http_api/src/proposer_duties.rs

@@ -10,7 +10,7 @@ use safe_arith::SafeArith;
 use slog::{debug, Logger};
 use slot_clock::SlotClock;
 use std::cmp::Ordering;
-use types::{CloneConfig, Epoch, EthSpec, Hash256, Slot};
+use types::{Epoch, EthSpec, Hash256, Slot};
 
 /// The struct that is returned to the requesting HTTP client.
 type ApiDuties = api_types::DutiesResponse<Vec<api_types::ProposerData>>;
@@ -192,8 +192,7 @@ fn compute_historic_proposer_duties<T: BeaconChainTypes>(
         if head.beacon_state.current_epoch() <= epoch {
             Some((
                 head.beacon_state_root(),
-                head.beacon_state
-                    .clone_with(CloneConfig::committee_caches_only()),
+                head.beacon_state.clone(),
                 execution_status.is_optimistic_or_invalid(),
             ))
         } else {

beacon_node/http_api/src/state_id.rs

@@ -178,10 +178,7 @@ impl StateId {
                     .head_and_execution_status()
                     .map_err(warp_utils::reject::beacon_chain_error)?;
                 return Ok((
-                    cached_head
-                        .snapshot
-                        .beacon_state
-                        .clone_with_only_committee_caches(),
+                    cached_head.snapshot.beacon_state.clone(),
                     execution_status.is_optimistic_or_invalid(),
                     false,
                 ));