n8n
Version:
n8n Workflow Automation Tool
26 lines (25 loc) • 1.08 kB
TypeScript
import type { LeaderElectionClient } from '../scaling/leader-election-client';
import type { Logger } from '@n8n/backend-common';
import type { ErrorReporter, InstanceSettings } from 'n8n-core';
import type { MultiMainStrategy } from './multi-main-setup.types';
type EmitFn = (event: 'leader-takeover' | 'leader-stepdown') => void;
export declare class MultiMainSetupV2 implements MultiMainStrategy {
private readonly logger;
private readonly instanceSettings;
private readonly errorReporter;
private readonly client;
private readonly emit;
private leaderCheckInProgress;
private get hostId();
constructor(logger: Logger, instanceSettings: InstanceSettings, errorReporter: ErrorReporter, client: LeaderElectionClient, emit: EmitFn);
init(): Promise<void>;
shutdown(): Promise<void>;
checkLeader(): Promise<void>;
private checkAreWeStillLeader;
private checkCanBecomeLeader;
private takeOverAsLeader;
private stepDownToFollower;
fetchLeaderKey(): Promise<string | null>;
private logRedisCommandFailure;
}
export {};