wehub-resource-sync
821 lines
25 KiB
TypeScript
821 lines
25 KiB
TypeScript
import type { ClickHouse, SessionInsertArray } from "@internal/clickhouse";
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import { getSessionField } from "@internal/clickhouse";
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import { type RedisOptions } from "@internal/redis";
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import {
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LogicalReplicationClient,
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type MessageDelete,
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type MessageInsert,
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type MessageUpdate,
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type PgoutputMessage,
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} from "@internal/replication";
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import {
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getMeter,
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recordSpanError,
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startSpan,
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trace,
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type Counter,
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type Histogram,
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type Meter,
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type Tracer,
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} from "@internal/tracing";
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import { Logger, type LogLevel } from "@trigger.dev/core/logger";
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import { tryCatch } from "@trigger.dev/core/utils";
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import { type Session } from "@trigger.dev/database";
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import EventEmitter from "node:events";
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import type { ClickhouseFactory } from "~/services/clickhouse/clickhouseFactory.server";
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import { ConcurrentFlushScheduler } from "./runsReplicationService.server";
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interface TransactionEvent<T = any> {
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tag: "insert" | "update" | "delete";
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data: T;
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raw: MessageInsert | MessageUpdate | MessageDelete;
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}
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interface Transaction<T = any> {
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beginStartTimestamp: number;
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commitLsn: string | null;
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commitEndLsn: string | null;
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xid: number;
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events: TransactionEvent<T>[];
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replicationLagMs: number;
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}
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export type SessionsReplicationServiceOptions = {
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clickhouseFactory: ClickhouseFactory;
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pgConnectionUrl: string;
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serviceName: string;
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slotName: string;
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publicationName: string;
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redisOptions: RedisOptions;
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maxFlushConcurrency?: number;
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flushIntervalMs?: number;
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flushBatchSize?: number;
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leaderLockTimeoutMs?: number;
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leaderLockExtendIntervalMs?: number;
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leaderLockAcquireAdditionalTimeMs?: number;
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leaderLockRetryIntervalMs?: number;
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ackIntervalSeconds?: number;
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acknowledgeTimeoutMs?: number;
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logger?: Logger;
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logLevel?: LogLevel;
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tracer?: Tracer;
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meter?: Meter;
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waitForAsyncInsert?: boolean;
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insertStrategy?: "insert" | "insert_async";
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// Retry configuration for insert operations
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insertMaxRetries?: number;
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insertBaseDelayMs?: number;
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insertMaxDelayMs?: number;
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};
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type SessionInsert = {
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_version: bigint;
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session: Session;
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event: "insert" | "update" | "delete";
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};
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export type SessionsReplicationServiceEvents = {
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message: [{ lsn: string; message: PgoutputMessage; service: SessionsReplicationService }];
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batchFlushed: [{ flushId: string; sessionInserts: SessionInsertArray[] }];
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};
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export class SessionsReplicationService {
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private _isSubscribed = false;
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private _currentTransaction:
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| (Omit<Transaction<Session>, "commitEndLsn" | "replicationLagMs"> & {
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commitEndLsn?: string | null;
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replicationLagMs?: number;
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})
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| null = null;
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private _replicationClient: LogicalReplicationClient;
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private _concurrentFlushScheduler: ConcurrentFlushScheduler<SessionInsert>;
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private logger: Logger;
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private _isShuttingDown = false;
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private _isShutDownComplete = false;
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private _tracer: Tracer;
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private _meter: Meter;
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private _currentParseDurationMs: number | null = null;
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private _lastAcknowledgedAt: number | null = null;
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private _acknowledgeTimeoutMs: number;
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private _latestCommitEndLsn: string | null = null;
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private _lastAcknowledgedLsn: string | null = null;
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private _acknowledgeInterval: NodeJS.Timeout | null = null;
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// Retry configuration
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private _insertMaxRetries: number;
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private _insertBaseDelayMs: number;
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private _insertMaxDelayMs: number;
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private _insertStrategy: "insert" | "insert_async";
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// Metrics
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private _replicationLagHistogram: Histogram;
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private _batchesFlushedCounter: Counter;
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private _batchSizeHistogram: Histogram;
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private _sessionsInsertedCounter: Counter;
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private _insertRetriesCounter: Counter;
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private _eventsProcessedCounter: Counter;
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private _flushDurationHistogram: Histogram;
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public readonly events: EventEmitter<SessionsReplicationServiceEvents>;
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constructor(private readonly options: SessionsReplicationServiceOptions) {
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this.logger =
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options.logger ?? new Logger("SessionsReplicationService", options.logLevel ?? "info");
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this.events = new EventEmitter();
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this._tracer = options.tracer ?? trace.getTracer("sessions-replication-service");
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this._meter = options.meter ?? getMeter("sessions-replication");
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// Initialize metrics
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this._replicationLagHistogram = this._meter.createHistogram(
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"sessions_replication.replication_lag_ms",
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{
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description: "Replication lag from Postgres commit to processing",
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unit: "ms",
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}
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);
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this._batchesFlushedCounter = this._meter.createCounter(
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"sessions_replication.batches_flushed",
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{
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description: "Total batches flushed to ClickHouse",
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}
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);
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this._batchSizeHistogram = this._meter.createHistogram("sessions_replication.batch_size", {
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description: "Number of items per batch flush",
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unit: "items",
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});
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this._sessionsInsertedCounter = this._meter.createCounter(
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"sessions_replication.sessions_inserted",
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{
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description: "Session inserts to ClickHouse",
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unit: "inserts",
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}
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);
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this._insertRetriesCounter = this._meter.createCounter("sessions_replication.insert_retries", {
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description: "Insert retry attempts",
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});
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this._eventsProcessedCounter = this._meter.createCounter(
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"sessions_replication.events_processed",
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{
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description: "Replication events processed (inserts, updates, deletes)",
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}
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);
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this._flushDurationHistogram = this._meter.createHistogram(
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"sessions_replication.flush_duration_ms",
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{
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description: "Duration of batch flush operations",
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unit: "ms",
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}
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);
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this._acknowledgeTimeoutMs = options.acknowledgeTimeoutMs ?? 1_000;
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this._insertStrategy = options.insertStrategy ?? "insert";
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this._replicationClient = new LogicalReplicationClient({
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pgConfig: {
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connectionString: options.pgConnectionUrl,
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},
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name: options.serviceName,
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slotName: options.slotName,
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publicationName: options.publicationName,
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table: "Session",
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redisOptions: options.redisOptions,
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autoAcknowledge: false,
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resubscribeOnFailure: true,
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publicationActions: ["insert", "update", "delete"],
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logger: options.logger ?? new Logger("LogicalReplicationClient", options.logLevel ?? "info"),
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leaderLockTimeoutMs: options.leaderLockTimeoutMs ?? 30_000,
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leaderLockExtendIntervalMs: options.leaderLockExtendIntervalMs ?? 10_000,
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ackIntervalSeconds: options.ackIntervalSeconds ?? 10,
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leaderLockAcquireAdditionalTimeMs: options.leaderLockAcquireAdditionalTimeMs ?? 10_000,
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leaderLockRetryIntervalMs: options.leaderLockRetryIntervalMs ?? 500,
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tracer: options.tracer,
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});
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this._concurrentFlushScheduler = new ConcurrentFlushScheduler<SessionInsert>({
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batchSize: options.flushBatchSize ?? 50,
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flushInterval: options.flushIntervalMs ?? 100,
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maxConcurrency: options.maxFlushConcurrency ?? 100,
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callback: this.#flushBatch.bind(this),
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// Key-based deduplication to reduce duplicates sent to ClickHouse
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getKey: (item) => {
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if (!item?.session?.id) {
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this.logger.warn("Skipping replication event with null session", { event: item });
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return null;
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}
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return `${item.event}_${item.session.id}`;
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},
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// Keep the session with the higher version (latest)
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// and take the last occurrence for that version.
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// Items originating from the same DB transaction have the same version.
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shouldReplace: (existing, incoming) => incoming._version >= existing._version,
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logger: new Logger("ConcurrentFlushScheduler", options.logLevel ?? "info"),
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tracer: options.tracer,
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});
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this._replicationClient.events.on("data", async ({ lsn, log, parseDuration }) => {
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this.#handleData(lsn, log, parseDuration);
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});
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this._replicationClient.events.on("heartbeat", async ({ lsn, shouldRespond }) => {
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if (this._isShuttingDown) return;
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if (this._isShutDownComplete) return;
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if (shouldRespond) {
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this._lastAcknowledgedLsn = lsn;
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await this._replicationClient.acknowledge(lsn);
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}
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});
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this._replicationClient.events.on("error", (error) => {
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this.logger.error("Replication client error", {
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error,
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});
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});
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this._replicationClient.events.on("start", () => {
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this.logger.info("Replication client started");
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});
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this._replicationClient.events.on("acknowledge", ({ lsn }) => {
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this.logger.debug("Acknowledged", { lsn });
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});
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this._replicationClient.events.on("leaderElection", (isLeader) => {
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this.logger.info("Leader election", { isLeader });
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});
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// Initialize retry configuration
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this._insertMaxRetries = options.insertMaxRetries ?? 3;
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this._insertBaseDelayMs = options.insertBaseDelayMs ?? 100;
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this._insertMaxDelayMs = options.insertMaxDelayMs ?? 2000;
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}
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public async shutdown() {
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if (this._isShuttingDown) return;
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this._isShuttingDown = true;
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this.logger.info("Initiating shutdown of sessions replication service");
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if (!this._currentTransaction) {
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this.logger.info("No transaction to commit, shutting down immediately");
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await this._replicationClient.shutdown();
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this._isSubscribed = false;
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this._isShutDownComplete = true;
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return;
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}
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this._concurrentFlushScheduler.shutdown();
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}
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async start() {
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if (this._isSubscribed) {
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this.logger.debug("Replication client already started, skipping start");
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return;
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}
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this.logger.info("Starting replication client", {
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lastLsn: this._latestCommitEndLsn,
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});
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await this._replicationClient.subscribe(this._latestCommitEndLsn ?? undefined);
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this._acknowledgeInterval = setInterval(this.#acknowledgeLatestTransaction.bind(this), 1000);
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this._concurrentFlushScheduler.start();
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this._isSubscribed = true;
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}
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async stop() {
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this.logger.info("Stopping replication client");
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await this._replicationClient.shutdown();
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if (this._acknowledgeInterval) {
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clearInterval(this._acknowledgeInterval);
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this._acknowledgeInterval = null;
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}
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this._isSubscribed = false;
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}
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async teardown() {
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this.logger.info("Teardown replication client");
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await this._replicationClient.teardown();
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if (this._acknowledgeInterval) {
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clearInterval(this._acknowledgeInterval);
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this._acknowledgeInterval = null;
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}
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this._isSubscribed = false;
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}
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#handleData(lsn: string, message: PgoutputMessage, parseDuration: bigint) {
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this.logger.debug("Handling data", {
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lsn,
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tag: message.tag,
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parseDuration,
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});
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this.events.emit("message", { lsn, message, service: this });
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switch (message.tag) {
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case "begin": {
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if (this._isShuttingDown || this._isShutDownComplete) {
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return;
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}
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this._currentTransaction = {
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beginStartTimestamp: Date.now(),
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commitLsn: message.commitLsn,
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xid: message.xid,
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events: [],
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};
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this._currentParseDurationMs = Number(parseDuration) / 1_000_000;
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break;
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}
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case "insert": {
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if (!this._currentTransaction) {
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return;
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}
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if (this._currentParseDurationMs) {
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this._currentParseDurationMs =
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this._currentParseDurationMs + Number(parseDuration) / 1_000_000;
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}
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this._currentTransaction.events.push({
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tag: message.tag,
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data: message.new as Session,
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raw: message,
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});
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break;
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}
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case "update": {
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if (!this._currentTransaction) {
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return;
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}
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if (this._currentParseDurationMs) {
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this._currentParseDurationMs =
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this._currentParseDurationMs + Number(parseDuration) / 1_000_000;
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}
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this._currentTransaction.events.push({
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tag: message.tag,
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data: message.new as Session,
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raw: message,
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});
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break;
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}
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case "delete": {
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if (!this._currentTransaction) {
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return;
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}
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if (this._currentParseDurationMs) {
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this._currentParseDurationMs =
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this._currentParseDurationMs + Number(parseDuration) / 1_000_000;
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}
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this._currentTransaction.events.push({
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tag: message.tag,
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data: message.old as Session,
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raw: message,
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});
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break;
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}
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case "commit": {
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if (!this._currentTransaction) {
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return;
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}
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if (this._currentParseDurationMs) {
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this._currentParseDurationMs =
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this._currentParseDurationMs + Number(parseDuration) / 1_000_000;
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}
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const replicationLagMs = Date.now() - Number(message.commitTime / 1000n);
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this._currentTransaction.commitEndLsn = message.commitEndLsn;
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this._currentTransaction.replicationLagMs = replicationLagMs;
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const transaction = this._currentTransaction as Transaction<Session>;
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this._currentTransaction = null;
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if (transaction.commitEndLsn) {
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this._latestCommitEndLsn = transaction.commitEndLsn;
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}
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this.#handleTransaction(transaction);
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break;
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}
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default: {
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this.logger.debug("Unknown message tag", {
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pgMessage: message,
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});
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}
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}
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}
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#handleTransaction(transaction: Transaction<Session>) {
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if (this._isShutDownComplete) return;
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if (this._isShuttingDown) {
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this._replicationClient
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.shutdown()
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.catch((error) => {
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this.logger.error("Error stopping replication client during shutdown", { error });
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})
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.finally(() => {
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this._isSubscribed = false;
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this._isShutDownComplete = true;
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});
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}
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// If there are no events, do nothing
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if (transaction.events.length === 0) {
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return;
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}
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if (!transaction.commitEndLsn) {
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this.logger.error("Transaction has no commit end lsn", {
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transaction,
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});
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return;
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}
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const lsnToUInt64Start = process.hrtime.bigint();
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// If there are events, we need to handle them
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const _version = lsnToUInt64(transaction.commitEndLsn);
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const lsnToUInt64DurationMs = Number(process.hrtime.bigint() - lsnToUInt64Start) / 1_000_000;
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this._concurrentFlushScheduler.addToBatch(
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transaction.events.map((event) => ({
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_version,
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session: event.data,
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event: event.tag,
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}))
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);
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// Record metrics
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this._replicationLagHistogram.record(transaction.replicationLagMs);
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// Count events by type
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for (const event of transaction.events) {
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this._eventsProcessedCounter.add(1, { event_type: event.tag });
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}
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this.logger.debug("handle_transaction", {
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transaction: {
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xid: transaction.xid,
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commitLsn: transaction.commitLsn,
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commitEndLsn: transaction.commitEndLsn,
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events: transaction.events.length,
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parseDurationMs: this._currentParseDurationMs,
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lsnToUInt64DurationMs,
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version: _version.toString(),
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},
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});
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}
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async #acknowledgeLatestTransaction() {
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if (!this._latestCommitEndLsn) {
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return;
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}
|
|
|
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if (this._lastAcknowledgedLsn === this._latestCommitEndLsn) {
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return;
|
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}
|
|
|
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const now = Date.now();
|
|
|
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if (this._lastAcknowledgedAt) {
|
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const timeSinceLastAcknowledged = now - this._lastAcknowledgedAt;
|
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// If we've already acknowledged within the last second, don't acknowledge again
|
|
if (timeSinceLastAcknowledged < this._acknowledgeTimeoutMs) {
|
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return;
|
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}
|
|
}
|
|
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this._lastAcknowledgedAt = now;
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this._lastAcknowledgedLsn = this._latestCommitEndLsn;
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this.logger.debug("acknowledge_latest_transaction", {
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commitEndLsn: this._latestCommitEndLsn,
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lastAcknowledgedAt: this._lastAcknowledgedAt,
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});
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|
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const [ackError] = await tryCatch(
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this._replicationClient.acknowledge(this._latestCommitEndLsn)
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);
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if (ackError) {
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this.logger.error("Error acknowledging transaction", { ackError });
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}
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if (this._isShutDownComplete && this._acknowledgeInterval) {
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clearInterval(this._acknowledgeInterval);
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}
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}
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|
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async #flushBatch(flushId: string, batch: Array<SessionInsert>) {
|
|
if (batch.length === 0) {
|
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return;
|
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}
|
|
|
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this.logger.debug("Flushing batch", {
|
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flushId,
|
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batchSize: batch.length,
|
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});
|
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|
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const flushStartTime = performance.now();
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|
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await startSpan(this._tracer, "flushBatch", async (span) => {
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const routeCache = new Map<string, ClickHouse>();
|
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const groups = new Map<ClickHouse, { sessionInserts: SessionInsertArray[] }>();
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|
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for (const item of batch) {
|
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if (!item.session.organizationId) {
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continue;
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}
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let client = routeCache.get(item.session.organizationId);
|
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if (!client) {
|
|
client = this.options.clickhouseFactory.getClickhouseForOrganizationSync(
|
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item.session.organizationId,
|
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"sessions_replication"
|
|
);
|
|
routeCache.set(item.session.organizationId, client);
|
|
}
|
|
|
|
let group = groups.get(client);
|
|
if (!group) {
|
|
group = { sessionInserts: [] };
|
|
groups.set(client, group);
|
|
}
|
|
|
|
group.sessionInserts.push(
|
|
toSessionInsertArray(item.session, item._version, item.event === "delete")
|
|
);
|
|
}
|
|
|
|
// batch inserts in clickhouse are more performant if the items
|
|
// are pre-sorted by the primary key
|
|
const sortSessionInserts = (rows: SessionInsertArray[]) =>
|
|
rows.sort((a, b) => {
|
|
const aOrgId = getSessionField(a, "organization_id");
|
|
const bOrgId = getSessionField(b, "organization_id");
|
|
if (aOrgId !== bOrgId) {
|
|
return aOrgId < bOrgId ? -1 : 1;
|
|
}
|
|
const aProjId = getSessionField(a, "project_id");
|
|
const bProjId = getSessionField(b, "project_id");
|
|
if (aProjId !== bProjId) {
|
|
return aProjId < bProjId ? -1 : 1;
|
|
}
|
|
const aEnvId = getSessionField(a, "environment_id");
|
|
const bEnvId = getSessionField(b, "environment_id");
|
|
if (aEnvId !== bEnvId) {
|
|
return aEnvId < bEnvId ? -1 : 1;
|
|
}
|
|
const aCreatedAt = getSessionField(a, "created_at");
|
|
const bCreatedAt = getSessionField(b, "created_at");
|
|
if (aCreatedAt !== bCreatedAt) {
|
|
return aCreatedAt - bCreatedAt;
|
|
}
|
|
const aSessionId = getSessionField(a, "session_id");
|
|
const bSessionId = getSessionField(b, "session_id");
|
|
if (aSessionId === bSessionId) return 0;
|
|
return aSessionId < bSessionId ? -1 : 1;
|
|
});
|
|
|
|
const combinedSessionInserts: SessionInsertArray[] = [];
|
|
let sessionError: Error | null = null;
|
|
|
|
// Sequential per-group flush — matches runsReplicationService for the same reason
|
|
// (parallel writes have hit Linux net.ipv4.tcp_wmem buffer pressure at high throughput).
|
|
for (const [clickhouse, group] of groups) {
|
|
sortSessionInserts(group.sessionInserts);
|
|
combinedSessionInserts.push(...group.sessionInserts);
|
|
|
|
const [insErr] = await this.#insertWithRetry(
|
|
(attempt) => this.#insertSessionInserts(clickhouse, group.sessionInserts, attempt),
|
|
"session inserts",
|
|
flushId
|
|
);
|
|
if (insErr && !sessionError) {
|
|
sessionError = insErr;
|
|
}
|
|
|
|
if (!insErr) {
|
|
this._sessionsInsertedCounter.add(group.sessionInserts.length);
|
|
}
|
|
}
|
|
|
|
span.setAttribute("session_inserts", combinedSessionInserts.length);
|
|
|
|
this.logger.debug("Flushing inserts", {
|
|
flushId,
|
|
sessionInserts: combinedSessionInserts.length,
|
|
clickhouseGroups: groups.size,
|
|
});
|
|
|
|
if (sessionError) {
|
|
this.logger.error("Error inserting session inserts", {
|
|
error: sessionError,
|
|
flushId,
|
|
});
|
|
recordSpanError(span, sessionError);
|
|
}
|
|
|
|
this.logger.debug("Flushed inserts", {
|
|
flushId,
|
|
sessionInserts: combinedSessionInserts.length,
|
|
});
|
|
|
|
this.events.emit("batchFlushed", { flushId, sessionInserts: combinedSessionInserts });
|
|
|
|
const flushDurationMs = performance.now() - flushStartTime;
|
|
const hasErrors = sessionError !== null;
|
|
|
|
this._batchSizeHistogram.record(batch.length);
|
|
this._flushDurationHistogram.record(flushDurationMs);
|
|
this._batchesFlushedCounter.add(1, { success: !hasErrors });
|
|
});
|
|
}
|
|
|
|
// New method to handle inserts with retry logic for connection errors
|
|
async #insertWithRetry<T>(
|
|
insertFn: (attempt: number) => Promise<T>,
|
|
operationName: string,
|
|
flushId: string
|
|
): Promise<[Error | null, T | null]> {
|
|
let lastError: Error | null = null;
|
|
|
|
for (let attempt = 1; attempt <= this._insertMaxRetries; attempt++) {
|
|
try {
|
|
const result = await insertFn(attempt);
|
|
return [null, result];
|
|
} catch (error) {
|
|
lastError = error instanceof Error ? error : new Error(String(error));
|
|
|
|
// Check if this is a retryable error
|
|
if (this.#isRetryableError(lastError)) {
|
|
const delay = this.#calculateRetryDelay(attempt);
|
|
|
|
this.logger.warn(`Retrying SessionsReplication insert due to error`, {
|
|
operationName,
|
|
flushId,
|
|
attempt,
|
|
maxRetries: this._insertMaxRetries,
|
|
error: lastError.message,
|
|
delay,
|
|
});
|
|
|
|
// Record retry metric
|
|
this._insertRetriesCounter.add(1, { operation: "sessions" });
|
|
|
|
await new Promise((resolve) => setTimeout(resolve, delay));
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return [lastError, null];
|
|
}
|
|
|
|
// Retry all errors except known permanent ones
|
|
#isRetryableError(error: Error): boolean {
|
|
const errorMessage = error.message.toLowerCase();
|
|
|
|
// Permanent errors that should NOT be retried
|
|
const permanentErrorPatterns = [
|
|
"authentication failed",
|
|
"permission denied",
|
|
"invalid credentials",
|
|
"table not found",
|
|
"database not found",
|
|
"column not found",
|
|
"schema mismatch",
|
|
"invalid query",
|
|
"syntax error",
|
|
"type error",
|
|
"constraint violation",
|
|
"duplicate key",
|
|
"foreign key violation",
|
|
];
|
|
|
|
// If it's a known permanent error, don't retry
|
|
if (permanentErrorPatterns.some((pattern) => errorMessage.includes(pattern))) {
|
|
return false;
|
|
}
|
|
|
|
// Retry everything else
|
|
return true;
|
|
}
|
|
|
|
#calculateRetryDelay(attempt: number): number {
|
|
// Exponential backoff: baseDelay, baseDelay*2, baseDelay*4, etc.
|
|
const delay = Math.min(
|
|
this._insertBaseDelayMs * Math.pow(2, attempt - 1),
|
|
this._insertMaxDelayMs
|
|
);
|
|
|
|
// Add some jitter to prevent thundering herd
|
|
const jitter = Math.random() * 100;
|
|
return delay + jitter;
|
|
}
|
|
|
|
#getClickhouseInsertSettings() {
|
|
if (this._insertStrategy === "insert") {
|
|
return {};
|
|
}
|
|
|
|
return {
|
|
async_insert: 1 as const,
|
|
async_insert_max_data_size: "1000000",
|
|
async_insert_busy_timeout_ms: 1000,
|
|
wait_for_async_insert: this.options.waitForAsyncInsert ? (1 as const) : (0 as const),
|
|
};
|
|
}
|
|
|
|
async #insertSessionInserts(
|
|
clickhouse: ClickHouse,
|
|
sessionInserts: SessionInsertArray[],
|
|
attempt: number
|
|
) {
|
|
if (sessionInserts.length === 0) {
|
|
return;
|
|
}
|
|
return await startSpan(this._tracer, "insertSessionInserts", async (span) => {
|
|
const [insertError, insertResult] = await clickhouse.sessions.insertCompactArrays(
|
|
sessionInserts,
|
|
{
|
|
params: {
|
|
clickhouse_settings: this.#getClickhouseInsertSettings(),
|
|
},
|
|
}
|
|
);
|
|
|
|
if (insertError) {
|
|
this.logger.error("Error inserting session inserts attempt", {
|
|
error: insertError,
|
|
attempt,
|
|
});
|
|
|
|
recordSpanError(span, insertError);
|
|
throw insertError;
|
|
}
|
|
|
|
return insertResult;
|
|
});
|
|
}
|
|
}
|
|
|
|
function toSessionInsertArray(
|
|
session: Session,
|
|
version: bigint,
|
|
isDeleted: boolean
|
|
): SessionInsertArray {
|
|
return [
|
|
session.runtimeEnvironmentId,
|
|
session.organizationId,
|
|
session.projectId,
|
|
session.id,
|
|
session.environmentType,
|
|
session.friendlyId,
|
|
session.externalId ?? "",
|
|
session.type,
|
|
session.taskIdentifier ?? "",
|
|
session.tags ?? [],
|
|
{ data: session.metadata ?? null },
|
|
session.closedAt ? session.closedAt.getTime() : null,
|
|
session.closedReason ?? "",
|
|
session.expiresAt ? session.expiresAt.getTime() : null,
|
|
session.createdAt.getTime(),
|
|
session.updatedAt.getTime(),
|
|
session.isTest ?? false,
|
|
version.toString(),
|
|
isDeleted ? 1 : 0,
|
|
];
|
|
}
|
|
|
|
function lsnToUInt64(lsn: string): bigint {
|
|
const [seg, off] = lsn.split("/");
|
|
return (BigInt("0x" + seg) << 32n) | BigInt("0x" + off);
|
|
}
|