feat: add strategy support for state archives #7170
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,166 @@ | ||
| import {Logger} from "@lodestar/utils"; | ||
| import {CheckpointWithHex} from "@lodestar/fork-choice"; | ||
| import {IBeaconDb} from "../../db/index.js"; | ||
| import {JobItemQueue} from "../../util/queue/index.js"; | ||
| import {IBeaconChain} from "../interface.js"; | ||
| import {ChainEvent} from "../emitter.js"; | ||
| import {Metrics} from "../../metrics/metrics.js"; | ||
| import {FrequencyStateArchiveStrategy} from "./strategies/frequencyStateArchiveStrategy.js"; | ||
| import {archiveBlocks} from "./archiveBlocks.js"; | ||
| import {StateArchiveMode, ArchiverOpts, StateArchiveStrategy} from "./interface.js"; | ||
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| export const DEFAULT_STATE_ARCHIVE_MODE = StateArchiveMode.Frequency; | ||
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| export const PROCESS_FINALIZED_CHECKPOINT_QUEUE_LEN = 256; | ||
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| /** | ||
| * Used for running tasks that depends on some events or are executed | ||
| * periodically. | ||
| */ | ||
| export class Archiver { | ||
| private stateArchiveMode: StateArchiveMode; | ||
| private jobQueue: JobItemQueue<[CheckpointWithHex], void>; | ||
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| private prevFinalized: CheckpointWithHex; | ||
| private readonly statesArchiverStrategy: StateArchiveStrategy; | ||
| private archiveBlobEpochs?: number; | ||
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| constructor( | ||
| private readonly db: IBeaconDb, | ||
| private readonly chain: IBeaconChain, | ||
| private readonly logger: Logger, | ||
| signal: AbortSignal, | ||
| opts: ArchiverOpts, | ||
| private readonly metrics?: Metrics | null | ||
| ) { | ||
| if (opts.stateArchiveMode === StateArchiveMode.Frequency) { | ||
| this.statesArchiverStrategy = new FrequencyStateArchiveStrategy(chain.regen, db, logger, opts, chain.bufferPool); | ||
| } else { | ||
| throw new Error(`State archive strategy "${opts.stateArchiveMode}" currently not supported.`); | ||
| } | ||
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| this.stateArchiveMode = opts.stateArchiveMode; | ||
| this.archiveBlobEpochs = opts.archiveBlobEpochs; | ||
| this.prevFinalized = chain.forkChoice.getFinalizedCheckpoint(); | ||
| this.jobQueue = new JobItemQueue<[CheckpointWithHex], void>(this.processFinalizedCheckpoint, { | ||
| maxLength: PROCESS_FINALIZED_CHECKPOINT_QUEUE_LEN, | ||
| signal, | ||
| }); | ||
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| if (!opts.disableArchiveOnCheckpoint) { | ||
| this.chain.emitter.on(ChainEvent.forkChoiceFinalized, this.onFinalizedCheckpoint); | ||
| this.chain.emitter.on(ChainEvent.checkpoint, this.onCheckpoint); | ||
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| signal.addEventListener( | ||
| "abort", | ||
| () => { | ||
| this.chain.emitter.off(ChainEvent.forkChoiceFinalized, this.onFinalizedCheckpoint); | ||
| this.chain.emitter.off(ChainEvent.checkpoint, this.onCheckpoint); | ||
| }, | ||
| {once: true} | ||
| ); | ||
| } | ||
| } | ||
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| /** Archive latest finalized state */ | ||
| async persistToDisk(): Promise<void> { | ||
| return this.statesArchiverStrategy.maybeArchiveState(this.chain.forkChoice.getFinalizedCheckpoint()); | ||
| } | ||
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| private onFinalizedCheckpoint = async (finalized: CheckpointWithHex): Promise<void> => { | ||
| return this.jobQueue.push(finalized); | ||
| }; | ||
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| private onCheckpoint = (): void => { | ||
| const headStateRoot = this.chain.forkChoice.getHead().stateRoot; | ||
| this.chain.regen.pruneOnCheckpoint( | ||
| this.chain.forkChoice.getFinalizedCheckpoint().epoch, | ||
| this.chain.forkChoice.getJustifiedCheckpoint().epoch, | ||
| headStateRoot | ||
| ); | ||
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| this.statesArchiverStrategy.onCheckpoint(headStateRoot, this.metrics).catch((err) => { | ||
| this.logger.error("Error during state archive", {stateArchiveMode: this.stateArchiveMode}, err); | ||
| }); | ||
| }; | ||
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| private processFinalizedCheckpoint = async (finalized: CheckpointWithHex): Promise<void> => { | ||
| try { | ||
| const finalizedEpoch = finalized.epoch; | ||
| this.logger.verbose("Start processing finalized checkpoint", {epoch: finalizedEpoch, rootHex: finalized.rootHex}); | ||
| await archiveBlocks( | ||
| this.chain.config, | ||
| this.db, | ||
| this.chain.forkChoice, | ||
| this.chain.lightClientServer, | ||
| this.logger, | ||
| finalized, | ||
| this.chain.clock.currentEpoch, | ||
| this.archiveBlobEpochs | ||
| ); | ||
| this.prevFinalized = finalized; | ||
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| await this.statesArchiverStrategy.onFinalizedCheckpoint(finalized, this.metrics); | ||
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| // should be after ArchiveBlocksTask to handle restart cleanly | ||
| await this.statesArchiverStrategy.maybeArchiveState(finalized, this.metrics); | ||
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| this.chain.regen.pruneOnFinalized(finalizedEpoch); | ||
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| // tasks rely on extended fork choice | ||
| const prunedBlocks = this.chain.forkChoice.prune(finalized.rootHex); | ||
| await this.updateBackfillRange(finalized); | ||
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| this.logger.verbose("Finish processing finalized checkpoint", { | ||
| epoch: finalizedEpoch, | ||
| rootHex: finalized.rootHex, | ||
| prunedBlocks: prunedBlocks.length, | ||
| }); | ||
| } catch (e) { | ||
| this.logger.error("Error processing finalized checkpoint", {epoch: finalized.epoch}, e as Error); | ||
| } | ||
| }; | ||
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| /** | ||
| * Backfill sync relies on verified connected ranges (which are represented as key,value | ||
| * with a verified jump from a key back to value). Since the node could have progressed | ||
| * ahead from, we need to save the forward progress of this node as another backfill | ||
| * range entry, that backfill sync will use to jump back if this node is restarted | ||
| * for any reason. | ||
| * The current backfill has its own backfill entry from anchor slot to last backfilled | ||
| * slot. And this would create the entry from the current finalized slot to the anchor | ||
| * slot. | ||
| */ | ||
| private updateBackfillRange = async (finalized: CheckpointWithHex): Promise<void> => { | ||
| try { | ||
| // Mark the sequence in backfill db from finalized block's slot till anchor slot as | ||
| // filled. | ||
| const finalizedBlockFC = this.chain.forkChoice.getBlockHex(finalized.rootHex); | ||
| if (finalizedBlockFC && finalizedBlockFC.slot > this.chain.anchorStateLatestBlockSlot) { | ||
| await this.db.backfilledRanges.put(finalizedBlockFC.slot, this.chain.anchorStateLatestBlockSlot); | ||
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| // Clear previously marked sequence till anchorStateLatestBlockSlot, without | ||
| // touching backfill sync process sequence which are at | ||
| // <=anchorStateLatestBlockSlot i.e. clear >anchorStateLatestBlockSlot | ||
| // and < currentSlot | ||
| const filteredSeqs = await this.db.backfilledRanges.entries({ | ||
| gt: this.chain.anchorStateLatestBlockSlot, | ||
| lt: finalizedBlockFC.slot, | ||
| }); | ||
| this.logger.debug("updated backfilledRanges", { | ||
| key: finalizedBlockFC.slot, | ||
| value: this.chain.anchorStateLatestBlockSlot, | ||
| }); | ||
| if (filteredSeqs.length > 0) { | ||
| await this.db.backfilledRanges.batchDelete(filteredSeqs.map((entry) => entry.key)); | ||
| this.logger.debug( | ||
| `Forward Sync - cleaned up backfilledRanges between ${finalizedBlockFC.slot},${this.chain.anchorStateLatestBlockSlot}`, | ||
| {seqs: JSON.stringify(filteredSeqs)} | ||
| ); | ||
| } | ||
| } | ||
| } catch (e) { | ||
| this.logger.error("Error updating backfilledRanges on finalization", {epoch: finalized.epoch}, e as Error); | ||
| } | ||
| }; | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,170 +1,2 @@ | ||
| export * from "./archiver.js"; | ||
| export * from "./interface.js"; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| import {CheckpointWithHex} from "@lodestar/fork-choice"; | ||
| import {Metrics} from "../../metrics/metrics.js"; | ||
| import {RootHex} from "@lodestar/types"; | ||
|
There was a problem hiding this comment. the new linter does not enforce import order anymore? There was a problem hiding this comment. There is a caveat related to import order, not yet enabled. #7182 |
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| export enum StateArchiveMode { | ||
| Frequency = "frequency", | ||
| // New strategy to be implemented | ||
| // WIP: https://github.com/ChainSafe/lodestar/pull/7005 | ||
| // Differential = "diff", | ||
| } | ||
|
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| export interface StatesArchiverOpts { | ||
| /** | ||
| * Minimum number of epochs between archived states | ||
| */ | ||
| archiveStateEpochFrequency: number; | ||
| /** | ||
| * Strategy to store archive states | ||
| */ | ||
| stateArchiveMode: StateArchiveMode; | ||
| } | ||
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| export type ArchiverOpts = StatesArchiverOpts & { | ||
| disableArchiveOnCheckpoint?: boolean; | ||
| archiveBlobEpochs?: number; | ||
| }; | ||
|
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| export type ProposalStats = { | ||
| total: number; | ||
| finalized: number; | ||
| orphaned: number; | ||
| missed: number; | ||
| }; | ||
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| export type FinalizedStats = { | ||
| allValidators: ProposalStats; | ||
| attachedValidators: ProposalStats; | ||
| finalizedCanonicalCheckpointsCount: number; | ||
| finalizedFoundCheckpointsInStateCache: number; | ||
| finalizedAttachedValidatorsCount: number; | ||
| }; | ||
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| export interface StateArchiveStrategy { | ||
| onCheckpoint(stateRoot: RootHex, metrics?: Metrics | null): Promise<void>; | ||
| onFinalizedCheckpoint(finalized: CheckpointWithHex, metrics?: Metrics | null): Promise<void>; | ||
| maybeArchiveState(finalized: CheckpointWithHex, metrics?: Metrics | null): Promise<void>; | ||
| } | ||
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This file is actually old
index.tsfile, with only strategy specific changes.