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feat: implement EIP-6110 (#6042)
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* Add immutable in the dependencies

* Initial change to pubkeyCache

* Added todos

* Moved unfinalized cache to epochCache

* Move populating finalized cache to afterProcessEpoch

* Specify unfinalized cache during state cloning

* Move from unfinalized to finalized cache in afterProcessEpoch

* Confused myself

* Clean up

* Change logic

* Fix cloning issue

* Clean up redundant code

* Add CarryoverData in epochCtx.createFromState

* Fix typo

* Update usage of pubkeyCache

* Update pubkeyCache usage

* Fix lint

* Fix lint

* Add 6110 to ChainConfig

* Add 6110 to BeaconPreset

* Define 6110 fork and container

* Add V6110 api to execution engine

* Update test

* Add depositReceiptsRoot to process_execution_payload

* State transitioning to EIP6110

* State transitioning to EIP6110

* Light client change in EIP-6110

* Update tests

* produceBlock

* Refactor processDeposit to match the spec

* Implement processDepositReceipt

* Implement 6110 fork guard for pubkeyCache

* Handle changes in eth1 deposit

* Update eth1 deposit test

* Fix typo

* Lint

* Remove embarassing comments

* Address comments

* Modify applyDeposit signature

* Update packages/state-transition/src/cache/epochCache.ts

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Update packages/state-transition/src/cache/epochCache.ts

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Update packages/state-transition/src/cache/pubkeyCache.ts

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Remove old code

* Rename fields in epochCache and immutableData

* Remove CarryoverData

* Move isAfter6110 from var to method

* Fix cyclic import

* Fix operations spec runner

* Fix for spec test

* Fix spec test

* state.depositReceiptsStartIndex to BigInt

* getDeposit requires cached state

* default depositReceiptsStartIndex value in genesis

* Fix pubkeyCache bug

* newUnfinalizedPubkeyIndexMap in createCachedBeaconState

* Lint

* Pass epochCache instead of pubkey2IndexFn in apis

* Address comments

* Add unit test on pubkey cache cloning

* Add unfinalizedPubkeyCacheSize to metrics

* Add unfinalizedPubkeyCacheSize to metrics

* Clean up code

* Add besu to el-interop

* Add 6110 genesis file

* Template for sim test

* Add unit test for getEth1DepositCount

* Update sim test

* Update besudocker

* Finish beacon api calls in sim test

* Update epochCache.createFromState()

* Fix bug unfinalized validators are not finalized

* Add sim test to run a few blocks

* Lint

* Merge branch 'unstable' into 611

* Add more check to sim test

* Update besu docker image instruction

* Update sim test with correct tx

* Address comment + cleanup

* Clean up code

* Properly handle promise rejection

* Lint

* Update packages/beacon-node/src/execution/engine/types.ts

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Update comments

* Accept type undefined in ExecutionPayloadBodyRpc

* Update comment and semantic

* Remove if statement when adding finalized validator

* Comment on repeated insert on finalized cache

* rename createFromState

* Add comment on getPubkey()

* Stash change to reduce diffs

* Stash change to reduce diffs

* Lint

* addFinalizedPubkey on finalized checkpoint

* Update comment

* Use OrderedMap for unfinalized cache

* Pull out logic of deleting pubkeys for batch op

* Add updateUnfinalizedPubkeys in regen

* Update updateUnfinalizedPubkeys logic

* Add comment

* Add metrics for state context caches

* Address comment

* Address comment

* Deprecate eth1Data polling when condition is reached

* Fix conflicts

* Fix sim test

* Lint

* Fix type

* Fix test

* Fix test

* Lint

* Update packages/light-client/src/spec/utils.ts

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Fix spec test

* Address comments

* Improve cache logic on checkpoint finalized

* Update sim test according to new cache logic

* Update comment

* Lint

* Finalized pubkey cache only update once per checkpoint

* Add perf test for updateUnfinalizedPubkeys

* Add perf test for updateUnfinalizedPubkeys

* Tweak params for perf test

* Freeze besu docker image version for 6110

* Add benchmark result

* Use Map instead of OrderedMap. Update benchmark

* Minor optimization

* Minor optimization

* Add memory test for immutable.js

* Update test

* Reduce code duplication

* Lint

* Remove try/catch in updateUnfinalizedPubkeys

* Introduce EpochCache metric

* Add historicalValidatorLengths

* Polish code

* Migrate state-transition unit tests to vitest

* Fix calculation of pivot index

* `historicalValidatorLengths` only activate post 6110

* Update sim test

* Lint

* Update packages/state-transition/src/cache/epochCache.ts

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Improve readability on historicalValidatorLengths

* Update types

* Fix calculation

* Add eth1data poll todo

* Add epochCache.getValidatorCountAtEpoch

* Add todo

* Add getStateIterator for state cache

* Partial commit

* Update perf test

* updateUnfinalizedPubkeys directly modify states from regen

* Update sim test. Lint

* Add todo

* some improvements and a fix for effectiveBalanceIncrements fork safeness

* rename eip6110 to elctra

* fix electra-interop.test.ts

---------

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>
Co-authored-by: gajinder <develop@g11tech.io>

lint and tsc

small cleanup

fix rebase issue
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ensi321 authored and g11tech committed Aug 9, 2024
1 parent 4805a2e commit 0efa231
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37 changes: 37 additions & 0 deletions packages/beacon-node/src/chain/chain.ts
Original file line number Diff line number Diff line change
Expand Up @@ -1027,6 +1027,9 @@ export class BeaconChain implements IBeaconChain {
metrics.forkChoice.balancesLength.set(forkChoiceMetrics.balancesLength);
metrics.forkChoice.nodes.set(forkChoiceMetrics.nodes);
metrics.forkChoice.indices.set(forkChoiceMetrics.indices);

const headState = this.getHeadState();
metrics.headState.unfinalizedPubkeyCacheSize.set(headState.epochCtx.unfinalizedPubkey2index.size);
}

private onClockSlot(slot: Slot): void {
Expand Down Expand Up @@ -1115,6 +1118,40 @@ export class BeaconChain implements IBeaconChain {
if (headState) {
this.opPool.pruneAll(headBlock, headState);
}

const cpEpoch = cp.epoch;
const electraEpoch = headState?.config.ELECTRA_FORK_EPOCH ?? Infinity;

if (headState === null) {
this.logger.verbose("Head state is null");
} else if (cpEpoch >= electraEpoch) {
// Get the validator.length from the state at cpEpoch
// We are confident the last element in the list is from headEpoch
// Thus we query from the end of the list. (cpEpoch - headEpoch - 1) is negative number
const pivotValidatorIndex = headState.epochCtx.getValidatorCountAtEpoch(cpEpoch);

if (pivotValidatorIndex !== undefined) {
// Note EIP-6914 will break this logic
const newFinalizedValidators = headState.epochCtx.unfinalizedPubkey2index.filter(
(index, _pubkey) => index < pivotValidatorIndex
);

// Populate finalized pubkey cache and remove unfinalized pubkey cache
if (!newFinalizedValidators.isEmpty()) {
this.regen.updateUnfinalizedPubkeys(newFinalizedValidators);
}
}
}

// TODO-Electra: Deprecating eth1Data poll requires a check on a finalized checkpoint state.
// Will resolve this later
// if (cpEpoch >= (this.config.ELECTRA_FORK_EPOCH ?? Infinity)) {
// // finalizedState can be safely casted to Electra state since cp is already post-Electra
// if (finalizedState.eth1DepositIndex >= (finalizedState as CachedBeaconStateElectra).depositReceiptsStartIndex) {
// // Signal eth1 to stop polling eth1Data
// this.eth1.stopPollingEth1Data();
// }
// }
}

async updateBeaconProposerData(epoch: Epoch, proposers: ProposerPreparationData[]): Promise<void> {
Expand Down
50 changes: 49 additions & 1 deletion packages/beacon-node/src/chain/regen/queued.ts
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
import {toHexString} from "@chainsafe/ssz";
import {phase0, Slot, RootHex, Epoch, BeaconBlock} from "@lodestar/types";
import {IForkChoice, ProtoBlock} from "@lodestar/fork-choice";
import {CachedBeaconStateAllForks, computeEpochAtSlot} from "@lodestar/state-transition";
import {CachedBeaconStateAllForks, UnfinalizedPubkeyIndexMap, computeEpochAtSlot} from "@lodestar/state-transition";
import {Logger} from "@lodestar/utils";
import {routes} from "@lodestar/api";
import {CheckpointHex, toCheckpointHex} from "../stateCache/index.js";
Expand Down Expand Up @@ -207,6 +207,54 @@ export class QueuedStateRegenerator implements IStateRegenerator {
return this.checkpointStateCache.updatePreComputedCheckpoint(rootHex, epoch);
}

/**
* Remove `validators` from all unfinalized cache's epochCtx.UnfinalizedPubkey2Index,
* and add them to epochCtx.pubkey2index and epochCtx.index2pubkey
*/
updateUnfinalizedPubkeys(validators: UnfinalizedPubkeyIndexMap): void {
let numStatesUpdated = 0;
const states = this.stateCache.getStates();
const cpStates = this.checkpointStateCache.getStates();

// Add finalized pubkeys to all states.
const addTimer = this.metrics?.regenFnAddPubkeyTime.startTimer();

// We only need to add pubkeys to any one of the states since the finalized caches is shared globally across all states
const firstState = (states.next().value ?? cpStates.next().value) as CachedBeaconStateAllForks | undefined;

if (firstState !== undefined) {
firstState.epochCtx.addFinalizedPubkeys(validators, this.metrics?.epochCache ?? undefined);
} else {
this.logger.warn("Attempt to delete finalized pubkey from unfinalized pubkey cache. But no state is available");
}

addTimer?.();

// Delete finalized pubkeys from unfinalized pubkey cache for all states
const deleteTimer = this.metrics?.regenFnDeletePubkeyTime.startTimer();
const pubkeysToDelete = Array.from(validators.keys());

for (const s of states) {
s.epochCtx.deleteUnfinalizedPubkeys(pubkeysToDelete);
numStatesUpdated++;
}

for (const s of cpStates) {
s.epochCtx.deleteUnfinalizedPubkeys(pubkeysToDelete);
numStatesUpdated++;
}

// Since first state is consumed from the iterator. Will need to perform delete explicitly
if (firstState !== undefined) {
firstState?.epochCtx.deleteUnfinalizedPubkeys(pubkeysToDelete);
numStatesUpdated++;
}

deleteTimer?.();

this.metrics?.regenFnNumStatesUpdated.observe(numStatesUpdated);
}

/**
* Get the state to run with `block`.
* - State after `block.parentRoot` dialed forward to block.slot
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ export class BlockStateCacheImpl implements BlockStateCache {
this.maxStates = maxStates;
this.cache = new MapTracker(metrics?.stateCache);
if (metrics) {
this.metrics = metrics.stateCache;
this.metrics = {...metrics.stateCache, ...metrics.epochCache};
metrics.stateCache.size.addCollect(() => metrics.stateCache.size.set(this.cache.size));
}
}
Expand Down Expand Up @@ -137,6 +137,10 @@ export class BlockStateCacheImpl implements BlockStateCache {
}));
}

getStates(): IterableIterator<CachedBeaconStateAllForks> {
return this.cache.values();
}

private deleteAllEpochItems(epoch: Epoch): void {
for (const rootHex of this.epochIndex.get(epoch) || []) {
this.cache.delete(rootHex);
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -190,6 +190,10 @@ export class FIFOBlockStateCache implements BlockStateCache {
}));
}

getStates(): IterableIterator<CachedBeaconStateAllForks> {
throw new Error("Method not implemented.");
}

/**
* For unit test only.
*/
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -177,6 +177,10 @@ export class InMemoryCheckpointStateCache implements CheckpointStateCache {
}));
}

getStates(): IterableIterator<CachedBeaconStateAllForks> {
return this.cache.values();
}

/** ONLY FOR DEBUGGING PURPOSES. For spec tests on error */
dumpCheckpointKeys(): string[] {
return Array.from(this.cache.keys());
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -594,6 +594,10 @@ export class PersistentCheckpointStateCache implements CheckpointStateCache {
});
}

getStates(): IterableIterator<CachedBeaconStateAllForks> {
throw new Error("Method not implemented.");
}

/** ONLY FOR DEBUGGING PURPOSES. For spec tests on error */
dumpCheckpointKeys(): string[] {
return Array.from(this.cache.keys());
Expand Down
2 changes: 2 additions & 0 deletions packages/beacon-node/src/chain/stateCache/types.ts
Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,7 @@ export interface BlockStateCache {
prune(headStateRootHex: RootHex): void;
deleteAllBeforeEpoch(finalizedEpoch: Epoch): void;
dumpSummary(): routes.lodestar.StateCacheItem[];
getStates(): IterableIterator<CachedBeaconStateAllForks>; // Expose beacon states stored in cache. Use with caution
}

/**
Expand Down Expand Up @@ -74,6 +75,7 @@ export interface CheckpointStateCache {
processState(blockRootHex: RootHex, state: CachedBeaconStateAllForks): Promise<number>;
clear(): void;
dumpSummary(): routes.lodestar.StateCacheItem[];
getStates(): IterableIterator<CachedBeaconStateAllForks>; // Expose beacon states stored in cache. Use with caution
}

export enum CacheItemType {
Expand Down
32 changes: 28 additions & 4 deletions packages/beacon-node/src/eth1/eth1DepositDataTracker.ts
Original file line number Diff line number Diff line change
@@ -1,6 +1,11 @@
import {phase0, ssz} from "@lodestar/types";
import {ChainForkConfig} from "@lodestar/config";
import {BeaconStateAllForks, becomesNewEth1Data} from "@lodestar/state-transition";
import {
BeaconStateAllForks,
CachedBeaconStateAllForks,
CachedBeaconStateElectra,
becomesNewEth1Data,
} from "@lodestar/state-transition";
import {ErrorAborted, TimeoutError, fromHex, Logger, isErrorAborted, sleep} from "@lodestar/utils";

import {IBeaconDb} from "../db/index.js";
Expand Down Expand Up @@ -67,6 +72,8 @@ export class Eth1DepositDataTracker {
/** Dynamically adjusted batch size to fetch deposit logs */
private eth1GetLogsBatchSizeDynamic = MAX_BLOCKS_PER_LOG_QUERY;
private readonly forcedEth1DataVote: phase0.Eth1Data | null;
/** To stop `runAutoUpdate()` in addition to AbortSignal */
private stopPolling: boolean;

constructor(
opts: Eth1Options,
Expand All @@ -81,6 +88,8 @@ export class Eth1DepositDataTracker {
this.depositsCache = new Eth1DepositsCache(opts, config, db);
this.eth1DataCache = new Eth1DataCache(config, db);
this.eth1FollowDistance = config.ETH1_FOLLOW_DISTANCE;
// TODO Electra: fix scenario where node starts post-Electra and `stopPolling` will always be false
this.stopPolling = false;

this.forcedEth1DataVote = opts.forcedEth1DataVote
? ssz.phase0.Eth1Data.deserialize(fromHex(opts.forcedEth1DataVote))
Expand Down Expand Up @@ -109,10 +118,22 @@ export class Eth1DepositDataTracker {
}
}

// TODO Electra: Figure out how an elegant way to stop eth1data polling
stopPollingEth1Data(): void {
this.stopPolling = true;
}

/**
* Return eth1Data and deposits ready for block production for a given state
*/
async getEth1DataAndDeposits(state: BeaconStateAllForks): Promise<Eth1DataAndDeposits> {
async getEth1DataAndDeposits(state: CachedBeaconStateAllForks): Promise<Eth1DataAndDeposits> {
if (
state.epochCtx.isAfterElectra() &&
state.eth1DepositIndex >= (state as CachedBeaconStateElectra).depositReceiptsStartIndex
) {
// No need to poll eth1Data since Electra deprecates the mechanism after depositReceiptsStartIndex is reached
return {eth1Data: state.eth1Data, deposits: []};
}
const eth1Data = this.forcedEth1DataVote ?? (await this.getEth1Data(state));
const deposits = await this.getDeposits(state, eth1Data);
return {eth1Data, deposits};
Expand Down Expand Up @@ -141,7 +162,10 @@ export class Eth1DepositDataTracker {
* Returns deposits to be included for a given state and eth1Data vote.
* Requires internal caches to be updated regularly to return good results
*/
private async getDeposits(state: BeaconStateAllForks, eth1DataVote: phase0.Eth1Data): Promise<phase0.Deposit[]> {
private async getDeposits(
state: CachedBeaconStateAllForks,
eth1DataVote: phase0.Eth1Data
): Promise<phase0.Deposit[]> {
// No new deposits have to be included, continue
if (eth1DataVote.depositCount === state.eth1DepositIndex) {
return [];
Expand All @@ -162,7 +186,7 @@ export class Eth1DepositDataTracker {
private async runAutoUpdate(): Promise<void> {
let lastRunMs = 0;

while (!this.signal.aborted) {
while (!this.signal.aborted && !this.stopPolling) {
lastRunMs = Date.now();

try {
Expand Down
8 changes: 8 additions & 0 deletions packages/beacon-node/src/eth1/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,10 @@ export class Eth1ForBlockProduction implements IEth1ForBlockProduction {
startPollingMergeBlock(): void {
return this.eth1MergeBlockTracker.startPollingMergeBlock();
}

stopPollingEth1Data(): void {
return this.eth1DepositDataTracker?.stopPollingEth1Data();
}
}

/**
Expand Down Expand Up @@ -140,4 +144,8 @@ export class Eth1ForBlockProductionDisabled implements IEth1ForBlockProduction {
startPollingMergeBlock(): void {
// Ignore
}

stopPollingEth1Data(): void {
// Ignore
}
}
5 changes: 5 additions & 0 deletions packages/beacon-node/src/eth1/interface.ts
Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,11 @@ export interface IEth1ForBlockProduction {
* - head state not isMergeTransitionComplete
*/
startPollingMergeBlock(): void;

/**
* Should stop polling eth1Data after a Electra block is finalized AND deposit_receipts_start_index is reached
*/
stopPollingEth1Data(): void;
}

/** Different Eth1Block from phase0.Eth1Block with blockHash */
Expand Down
14 changes: 8 additions & 6 deletions packages/beacon-node/src/eth1/utils/deposits.ts
Original file line number Diff line number Diff line change
@@ -1,17 +1,17 @@
import {toGindex, Tree} from "@chainsafe/persistent-merkle-tree";
import {toHexString} from "@chainsafe/ssz";
import {MAX_DEPOSITS} from "@lodestar/params";
import {BeaconStateAllForks} from "@lodestar/state-transition";
import {CachedBeaconStateAllForks} from "@lodestar/state-transition";
import {phase0, ssz} from "@lodestar/types";
import {FilterOptions} from "@lodestar/db";
import {getEth1DepositCount} from "@lodestar/state-transition";
import {Eth1Error, Eth1ErrorCode} from "../errors.js";
import {DepositTree} from "../../db/repositories/depositDataRoot.js";

export type DepositGetter<T> = (indexRange: FilterOptions<number>, eth1Data: phase0.Eth1Data) => Promise<T[]>;

export async function getDeposits<T>(
// eth1_deposit_index represents the next deposit index to be added
state: BeaconStateAllForks,
state: CachedBeaconStateAllForks,
eth1Data: phase0.Eth1Data,
depositsGetter: DepositGetter<T>
): Promise<T[]> {
Expand All @@ -22,9 +22,11 @@ export async function getDeposits<T>(
throw new Eth1Error({code: Eth1ErrorCode.DEPOSIT_INDEX_TOO_HIGH, depositIndex, depositCount});
}

// Spec v0.12.2
// assert len(body.deposits) == min(MAX_DEPOSITS, state.eth1_data.deposit_count - state.eth1_deposit_index)
const depositsLen = Math.min(MAX_DEPOSITS, depositCount - depositIndex);
const depositsLen = getEth1DepositCount(state, eth1Data);

if (depositsLen === 0) {
return []; // If depositsLen === 0, we can return early since no deposit with be returned from depositsGetter
}

const indexRange = {gte: depositIndex, lt: depositIndex + depositsLen};
const deposits = await depositsGetter(indexRange, eth1Data);
Expand Down
10 changes: 7 additions & 3 deletions packages/beacon-node/src/execution/engine/http.ts
Original file line number Diff line number Diff line change
Expand Up @@ -198,7 +198,9 @@ export class ExecutionEngineHttp implements IExecutionEngine {
parentBlockRoot?: Root
): Promise<ExecutePayloadResponse> {
const method =
ForkSeq[fork] >= ForkSeq.deneb
ForkSeq[fork] >= ForkSeq.electra
? "engine_newPayloadV6110"
: ForkSeq[fork] >= ForkSeq.deneb
? "engine_newPayloadV3"
: ForkSeq[fork] >= ForkSeq.capella
? "engine_newPayloadV2"
Expand All @@ -218,7 +220,7 @@ export class ExecutionEngineHttp implements IExecutionEngine {
const serializedVersionedHashes = serializeVersionedHashes(versionedHashes);
const parentBeaconBlockRoot = serializeBeaconBlockRoot(parentBlockRoot);

const method = "engine_newPayloadV3";
const method = ForkSeq[fork] >= ForkSeq.electra ? "engine_newPayloadV6110" : "engine_newPayloadV3";
engineRequest = {
method,
params: [serializedExecutionPayload, serializedVersionedHashes, parentBeaconBlockRoot],
Expand Down Expand Up @@ -392,7 +394,9 @@ export class ExecutionEngineHttp implements IExecutionEngine {
shouldOverrideBuilder?: boolean;
}> {
const method =
ForkSeq[fork] >= ForkSeq.deneb
ForkSeq[fork] >= ForkSeq.electra
? "engine_getPayloadV6110"
: ForkSeq[fork] >= ForkSeq.deneb
? "engine_getPayloadV3"
: ForkSeq[fork] >= ForkSeq.capella
? "engine_getPayloadV2"
Expand Down
4 changes: 2 additions & 2 deletions packages/beacon-node/src/execution/engine/interface.ts
Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,10 @@ import {KZGCommitment, Blob, KZGProof} from "@lodestar/types/deneb";
import {Root, RootHex, capella, Wei, ExecutionPayload} from "@lodestar/types";

import {DATA} from "../../eth1/provider/utils.js";
import {PayloadIdCache, PayloadId, WithdrawalV1} from "./payloadIdCache.js";
import {PayloadIdCache, PayloadId, WithdrawalV1, DepositReceiptV1} from "./payloadIdCache.js";
import {ExecutionPayloadBody} from "./types.js";

export {PayloadIdCache, type PayloadId, type WithdrawalV1};
export {PayloadIdCache, type PayloadId, type WithdrawalV1, type DepositReceiptV1};

export enum ExecutionPayloadStatus {
/** given payload is valid */
Expand Down
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