feat(core): Implement inter-main communication for test webhooks in multi-main setup (#8267)

packages/cli/src/TestWebhooks.ts

@@ -17,13 +17,14 @@ import type {
 import { Push } from '@/push';
 import { NodeTypes } from '@/NodeTypes';
 import * as WebhookHelpers from '@/WebhookHelpers';
-import { TIME } from '@/constants';
+import { TEST_WEBHOOK_TIMEOUT } from '@/constants';
 import { NotFoundError } from '@/errors/response-errors/not-found.error';
 import { WorkflowMissingIdError } from '@/errors/workflow-missing-id.error';
 import { WebhookNotFoundError } from '@/errors/response-errors/webhook-not-found.error';
 import * as NodeExecuteFunctions from 'n8n-core';
 import { removeTrailingSlash } from './utils';
 import { TestWebhookRegistrationsService } from '@/services/test-webhook-registrations.service';
+import { MultiMainSetup } from './services/orchestration/main/MultiMainSetup.ee';
 import * as WorkflowExecuteAdditionalData from '@/WorkflowExecuteAdditionalData';
 
 @Service()
@@ -32,6 +33,7 @@ export class TestWebhooks implements IWebhookManager {
 		private readonly push: Push,
 		private readonly nodeTypes: NodeTypes,
 		private readonly registrations: TestWebhookRegistrationsService,
+		private readonly multiMainSetup: MultiMainSetup,
 	) {}
 
 	private timeouts: { [webhookKey: string]: NodeJS.Timeout } = {};
@@ -89,7 +91,6 @@ export class TestWebhooks implements IWebhookManager {
 		}
 
 		const { destinationNode, sessionId, workflowEntity } = registration;
-		const timeout = this.timeouts[key];
 
 		const workflow = this.toWorkflow(workflowEntity);
 
@@ -135,15 +136,34 @@ export class TestWebhooks implements IWebhookManager {
 				}
 			} catch {}
 
-			// Delete webhook also if an error is thrown
-			if (timeout) clearTimeout(timeout);
+			/**
+			 * Multi-main setup: In a manual webhook execution, the main process that
+			 * handles a webhook might not be the same as the main process that created
+			 * the webhook. If so, after the test webhook has been successfully executed,
+			 * the handler process commands the creator process to clear its test webhooks.
+			 */
+			if (
+				this.multiMainSetup.isEnabled &&
+				sessionId &&
+				!this.push.getBackend().hasSessionId(sessionId)
+			) {
+				const payload = { webhookKey: key, workflowEntity, sessionId };
+				void this.multiMainSetup.publish('clear-test-webhooks', payload);
+				return;
+			}
 
-			await this.registrations.deregisterAll();
+			this.clearTimeout(key);
 
 			await this.deactivateWebhooks(workflow);
 		});
 	}
 
+	clearTimeout(key: string) {
+		const timeout = this.timeouts[key];
+
+		if (timeout) clearTimeout(timeout);
+	}
+
 	async getWebhookMethods(path: string) {
 		const allKeys = await this.registrations.getAllKeys();
 
@@ -208,7 +228,7 @@ export class TestWebhooks implements IWebhookManager {
 			return false; // no webhooks found to start a workflow
 		}
 
-		const timeout = setTimeout(async () => this.cancelWebhook(workflow.id), 2 * TIME.MINUTE);
+		const timeout = setTimeout(async () => this.cancelWebhook(workflow.id), TEST_WEBHOOK_TIMEOUT);
 
 		for (const webhook of webhooks) {
 			const key = this.registrations.toKey(webhook);
@@ -270,13 +290,11 @@ export class TestWebhooks implements IWebhookManager {
 
 			const { sessionId, workflowEntity } = registration;
 
-			const timeout = this.timeouts[key];
-
 			const workflow = this.toWorkflow(workflowEntity);
 
 			if (workflowEntity.id !== workflowId) continue;
 
-			clearTimeout(timeout);
+			this.clearTimeout(key);
 
 			if (sessionId !== undefined) {
 				try {
@@ -359,13 +377,13 @@ export class TestWebhooks implements IWebhookManager {
 			if (staticData) workflow.staticData = staticData;
 
 			await workflow.deleteWebhook(webhook, NodeExecuteFunctions, 'internal', 'update');
-
-			await this.registrations.deregister(webhook);
 		}
+
+		await this.registrations.deregisterAll();
 	}
 
 	/**
-	 * Convert a `WorkflowEntity` from `typeorm` to a `Workflow` from `n8n-workflow`.
+	 * Convert a `WorkflowEntity` from `typeorm` to a temporary `Workflow` from `n8n-workflow`.
 	 */
 	toWorkflow(workflowEntity: IWorkflowDb) {
 		return new Workflow({

packages/cli/src/constants.ts

@@ -109,8 +109,12 @@ export const TIME = {
 	MINUTE: 60 * 1000,
 	HOUR: 60 * 60 * 1000,
 	DAY: 24 * 60 * 60 * 1000,
-};
+} as const;
 
 export const MIN_PASSWORD_CHAR_LENGTH = 8;
 
 export const MAX_PASSWORD_CHAR_LENGTH = 64;
+
+export const TEST_WEBHOOK_TIMEOUT = 2 * TIME.MINUTE;
+
+export const TEST_WEBHOOK_TIMEOUT_BUFFER = 30 * TIME.SECOND;

packages/cli/src/push/abstract.push.ts

@@ -3,6 +3,7 @@ import { assert, jsonStringify } from 'n8n-workflow';
 import type { IPushDataType } from '@/Interfaces';
 import type { Logger } from '@/Logger';
 import type { User } from '@db/entities/User';
+import type { MultiMainSetup } from '@/services/orchestration/main/MultiMainSetup.ee';
 
 /**
  * Abstract class for two-way push communication.
@@ -16,19 +17,23 @@ export abstract class AbstractPush<T> extends EventEmitter {
 	protected userIdBySessionId: Record<string, string> = {};
 
 	protected abstract close(connection: T): void;
-	protected abstract sendToOne(connection: T, data: string): void;
+	protected abstract sendToOneConnection(connection: T, data: string): void;
 
-	constructor(protected readonly logger: Logger) {
+	constructor(
+		protected readonly logger: Logger,
+		private readonly multiMainSetup: MultiMainSetup,
+	) {
 		super();
 	}
 
-	protected add(sessionId: string, userId: User['id'], connection: T): void {
+	protected add(sessionId: string, userId: User['id'], connection: T) {
 		const { connections, userIdBySessionId: userIdsBySessionId } = this;
 		this.logger.debug('Add editor-UI session', { sessionId });
 
 		const existingConnection = connections[sessionId];
+
 		if (existingConnection) {
-			// Make sure to remove existing connection with the same id
+			// Make sure to remove existing connection with the same ID
 			this.close(existingConnection);
 		}
 
@@ -36,46 +41,58 @@ export abstract class AbstractPush<T> extends EventEmitter {
 		userIdsBySessionId[sessionId] = userId;
 	}
 
-	protected onMessageReceived(sessionId: string, msg: unknown): void {
+	protected onMessageReceived(sessionId: string, msg: unknown) {
 		this.logger.debug('Received message from editor-UI', { sessionId, msg });
+
 		const userId = this.userIdBySessionId[sessionId];
-		this.emit('message', {
-			sessionId,
-			userId,
-			msg,
-		});
+
+		this.emit('message', { sessionId, userId, msg });
 	}
 
-	protected remove(sessionId?: string): void {
-		if (sessionId !== undefined) {
-			this.logger.debug('Remove editor-UI session', { sessionId });
+	protected remove(sessionId?: string) {
+		if (!sessionId) return;
+
+		this.logger.debug('Removed editor-UI session', { sessionId });
+
 		delete this.connections[sessionId];
 		delete this.userIdBySessionId[sessionId];
 	}
-	}
 
-	private sendToSessions<D>(type: IPushDataType, data: D, sessionIds: string[]) {
+	private sendToSessions(type: IPushDataType, data: unknown, sessionIds: string[]) {
 		this.logger.debug(`Send data of type "${type}" to editor-UI`, {
 			dataType: type,
 			sessionIds: sessionIds.join(', '),
 		});
 
-		const sendData = jsonStringify({ type, data }, { replaceCircularRefs: true });
+		const stringifiedPayload = jsonStringify({ type, data }, { replaceCircularRefs: true });
 
 		for (const sessionId of sessionIds) {
 			const connection = this.connections[sessionId];
 			assert(connection);
-			this.sendToOne(connection, sendData);
+			this.sendToOneConnection(connection, stringifiedPayload);
 		}
 	}
 
-	broadcast<D>(type: IPushDataType, data?: D) {
+	sendToAllSessions(type: IPushDataType, data?: unknown) {
 		this.sendToSessions(type, data, Object.keys(this.connections));
 	}
 
-	send<D>(type: IPushDataType, data: D, sessionId: string) {
-		const { connections } = this;
-		if (connections[sessionId] === undefined) {
+	sendToOneSession(type: IPushDataType, data: unknown, sessionId: string) {
+		/**
+		 * Multi-main setup: In a manual webhook execution, the main process that
+		 * handles a webhook might not be the same as the main process that created
+		 * the webhook. If so, the handler process commands the creator process to
+		 * relay the former's execution lifecyle events to the creator's frontend.
+		 */
+		if (this.multiMainSetup.isEnabled && !this.hasSessionId(sessionId)) {
+			const payload = { type, args: data, sessionId };
+
+			void this.multiMainSetup.publish('relay-execution-lifecycle-event', payload);
+
+			return;
+		}
+
+		if (this.connections[sessionId] === undefined) {
 			this.logger.error(`The session "${sessionId}" is not registered.`, { sessionId });
 			return;
 		}
@@ -83,10 +100,7 @@ export abstract class AbstractPush<T> extends EventEmitter {
 		this.sendToSessions(type, data, [sessionId]);
 	}
 
-	/**
-	 * Sends the given data to given users' connections
-	 */
-	sendToUsers<D>(type: IPushDataType, data: D, userIds: Array<User['id']>) {
+	sendToUsers(type: IPushDataType, data: unknown, userIds: Array<User['id']>) {
 		const { connections } = this;
 		const userSessionIds = Object.keys(connections).filter((sessionId) =>
 			userIds.includes(this.userIdBySessionId[sessionId]),
@@ -95,9 +109,6 @@ export abstract class AbstractPush<T> extends EventEmitter {
 		this.sendToSessions(type, data, userSessionIds);
 	}
 
-	/**
-	 * Closes all push existing connections
-	 */
 	closeAllConnections() {
 		for (const sessionId in this.connections) {
 			// Signal the connection that we want to close it.
@@ -107,4 +118,8 @@ export abstract class AbstractPush<T> extends EventEmitter {
 			this.close(this.connections[sessionId]);
 		}
 	}
+
+	hasSessionId(sessionId: string) {
+		return this.connections[sessionId] !== undefined;
+	}
 }

packages/cli/src/push/index.ts

@@ -34,9 +34,7 @@ export class Push extends EventEmitter {
 	constructor() {
 		super();
 
-		if (useWebSockets) {
-			this.backend.on('message', (msg) => this.emit('message', msg));
-		}
+		if (useWebSockets) this.backend.on('message', (msg) => this.emit('message', msg));
 	}
 
 	handleRequest(req: SSEPushRequest | WebSocketPushRequest, res: PushResponse) {
@@ -44,6 +42,7 @@ export class Push extends EventEmitter {
 			userId,
 			query: { sessionId },
 		} = req;
+
 		if (req.ws) {
 			(this.backend as WebSocketPush).add(sessionId, userId, req.ws);
 		} else if (!useWebSockets) {
@@ -56,24 +55,24 @@ export class Push extends EventEmitter {
 		this.emit('editorUiConnected', sessionId);
 	}
 
-	broadcast<D>(type: IPushDataType, data?: D) {
-		this.backend.broadcast(type, data);
+	broadcast(type: IPushDataType, data?: unknown) {
+		this.backend.sendToAllSessions(type, data);
 	}
 
-	send<D>(type: IPushDataType, data: D, sessionId: string) {
-		this.backend.send(type, data, sessionId);
+	send(type: IPushDataType, data: unknown, sessionId: string) {
+		this.backend.sendToOneSession(type, data, sessionId);
 	}
 
 	getBackend() {
 		return this.backend;
 	}
 
-	sendToUsers<D>(type: IPushDataType, data: D, userIds: Array<User['id']>) {
+	sendToUsers(type: IPushDataType, data: unknown, userIds: Array<User['id']>) {
 		this.backend.sendToUsers(type, data, userIds);
 	}
 
 	@OnShutdown()
-	onShutdown(): void {
+	onShutdown() {
 		this.backend.closeAllConnections();
 	}
 }

packages/cli/src/push/sse.push.ts

@@ -4,6 +4,7 @@ import { Logger } from '@/Logger';
 import { AbstractPush } from './abstract.push';
 import type { PushRequest, PushResponse } from './types';
 import type { User } from '@db/entities/User';
+import { MultiMainSetup } from '@/services/orchestration/main/MultiMainSetup.ee';
 
 type Connection = { req: PushRequest; res: PushResponse };
 
@@ -13,8 +14,9 @@ export class SSEPush extends AbstractPush<Connection> {
 
 	readonly connections: Record<string, Connection> = {};
 
-	constructor(logger: Logger) {
-		super(logger);
+	constructor(logger: Logger, multiMainSetup: MultiMainSetup) {
+		super(logger, multiMainSetup);
+
 		this.channel.on('disconnect', (channel, { req }) => {
 			this.remove(req?.query?.sessionId);
 		});
@@ -25,12 +27,12 @@ export class SSEPush extends AbstractPush<Connection> {
 		this.channel.addClient(connection.req, connection.res);
 	}
 
-	protected close({ res }: Connection): void {
+	protected close({ res }: Connection) {
 		res.end();
 		this.channel.removeClient(res);
 	}
 
-	protected sendToOne(connection: Connection, data: string): void {
+	protected sendToOneConnection(connection: Connection, data: string) {
 		this.channel.send(data, [connection.res]);
 	}
 }

packages/cli/src/push/websocket.push.ts

@@ -3,6 +3,7 @@ import { Service } from 'typedi';
 import { Logger } from '@/Logger';
 import { AbstractPush } from './abstract.push';
 import type { User } from '@db/entities/User';
+import { MultiMainSetup } from '@/services/orchestration/main/MultiMainSetup.ee';
 
 function heartbeat(this: WebSocket) {
 	this.isAlive = true;
@@ -10,8 +11,8 @@ function heartbeat(this: WebSocket) {
 
 @Service()
 export class WebSocketPush extends AbstractPush<WebSocket> {
-	constructor(logger: Logger) {
-		super(logger);
+	constructor(logger: Logger, multiMainSetup: MultiMainSetup) {
+		super(logger, multiMainSetup);
 
 		// Ping all connected clients every 60 seconds
 		setInterval(() => this.pingAll(), 60 * 1000);
@@ -51,7 +52,7 @@ export class WebSocketPush extends AbstractPush<WebSocket> {
 		connection.close();
 	}
 
-	protected sendToOne(connection: WebSocket, data: string): void {
+	protected sendToOneConnection(connection: WebSocket, data: string): void {
 		connection.send(data);
 	}
 

packages/cli/src/services/cache/cache.service.ts

@@ -15,6 +15,7 @@ import type {
 	MaybeHash,
 	Hash,
 } from '@/services/cache/cache.types';
+import { TIME } from '@/constants';
 
 @Service()
 export class CacheService extends EventEmitter {
@@ -130,6 +131,21 @@ export class CacheService extends EventEmitter {
 		await this.set(key, hashObject);
 	}
 
+	async expire(key: string, ttlMs: number) {
+		if (!this.cache) await this.init();
+
+		if (!key?.length) return;
+
+		if (this.cache.kind === 'memory') {
+			setTimeout(async () => {
+				await this.cache.store.del(key);
+			}, ttlMs);
+			return;
+		}
+
+		await this.cache.store.expire(key, ttlMs / TIME.SECOND);
+	}
+
 	// ----------------------------------
 	//            retrieving
 	// ----------------------------------

packages/cli/src/services/cache/redis.cache-manager.ts

@@ -39,6 +39,7 @@ export interface RedisStore extends Store {
 	hvals<T>(key: string): Promise<T[]>;
 	hexists(key: string, field: string): Promise<boolean>;
 	hdel(key: string, field: string): Promise<number>;
+	expire(key: string, ttlSeconds: number): Promise<void>;
 }
 
 function builder(
@@ -56,6 +57,9 @@ function builder(
 			if (val === undefined || val === null) return undefined;
 			else return jsonParse<T>(val);
 		},
+		async expire(key: string, ttlSeconds: number) {
+			await redisCache.expire(key, ttlSeconds);
+		},
 		async set(key, value, ttl) {
 			// eslint-disable-next-line @typescript-eslint/no-throw-literal, @typescript-eslint/restrict-template-expressions
 			if (!isCacheable(value)) throw new NoCacheableError(`"${value}" is not a cacheable value`);

packages/cli/src/services/orchestration/main/MultiMainSetup.ee.ts

@@ -4,6 +4,10 @@ import { TIME } from '@/constants';
 import { SingleMainSetup } from '@/services/orchestration/main/SingleMainSetup';
 import { getRedisPrefix } from '@/services/redis/RedisServiceHelper';
 import { ErrorReporterProxy as EventReporter } from 'n8n-workflow';
+import type {
+	RedisServiceBaseCommand,
+	RedisServiceCommand,
+} from '@/services/redis/RedisServiceCommands';
 
 @Service()
 export class MultiMainSetup extends SingleMainSetup {
@@ -122,27 +126,14 @@ export class MultiMainSetup extends SingleMainSetup {
 		}
 	}
 
-	async broadcastWorkflowActiveStateChanged(payload: {
-		workflowId: string;
-		oldState: boolean;
-		newState: boolean;
-		versionId: string;
-	}) {
+	async publish(command: RedisServiceCommand, data: unknown) {
 		if (!this.sanityCheck()) return;
 
-		await this.redisPublisher.publishToCommandChannel({
-			command: 'workflowActiveStateChanged',
-			payload,
-		});
-	}
+		const payload = data as RedisServiceBaseCommand['payload'];
 
-	async broadcastWorkflowFailedToActivate(payload: { workflowId: string; errorMessage: string }) {
-		if (!this.sanityCheck()) return;
+		this.logger.debug(`[Instance ID ${this.id}] Publishing command "${command}"`, payload);
 
-		await this.redisPublisher.publishToCommandChannel({
-			command: 'workflowFailedToActivate',
-			payload,
-		});
+		await this.redisPublisher.publishToCommandChannel({ command, payload });
 	}
 
 	async fetchLeaderKey() {

packages/cli/src/services/orchestration/main/handleCommandMessageMain.ts

@@ -9,6 +9,7 @@ import { ActiveWorkflowRunner } from '@/ActiveWorkflowRunner';
 import { Push } from '@/push';
 import { MultiMainSetup } from './MultiMainSetup.ee';
 import { WorkflowRepository } from '@/databases/repositories/workflow.repository';
+import { TestWebhooks } from '@/TestWebhooks';
 
 export async function handleCommandMessageMain(messageString: string) {
 	const queueModeId = config.getEnv('redis.queueModeId');
@@ -31,6 +32,9 @@ export async function handleCommandMessageMain(messageString: string) {
 			);
 			return message;
 		}
+
+		const push = Container.get(Push);
+
 		switch (message.command) {
 			case 'reloadLicense':
 				if (!debounceMessageReceiver(message, 500)) {
@@ -84,8 +88,6 @@ export async function handleCommandMessageMain(messageString: string) {
 					break;
 				}
 
-				const push = Container.get(Push);
-
 				if (!oldState && newState) {
 					try {
 						await activeWorkflowRunner.add(workflowId, 'activate');
@@ -98,7 +100,7 @@ export async function handleCommandMessageMain(messageString: string) {
 							versionId,
 						});
 
-						await Container.get(MultiMainSetup).broadcastWorkflowFailedToActivate({
+						await Container.get(MultiMainSetup).publish('workflowFailedToActivate', {
 							workflowId,
 							errorMessage: error.message,
 						});
@@ -125,6 +127,44 @@ export async function handleCommandMessageMain(messageString: string) {
 				if (typeof workflowId !== 'string' || typeof errorMessage !== 'string') break;
 
 				Container.get(Push).broadcast('workflowFailedToActivate', { workflowId, errorMessage });
+
+				break;
+			}
+
+			case 'relay-execution-lifecycle-event': {
+				/**
+				 * Do not debounce this - all events share the same message name.
+				 */
+
+				const { type, args, sessionId } = message.payload;
+
+				if (!push.getBackend().hasSessionId(sessionId)) break;
+
+				push.send(type, args, sessionId);
+
+				break;
+			}
+
+			case 'clear-test-webhooks': {
+				if (!debounceMessageReceiver(message, 100)) {
+					// @ts-expect-error Legacy typing
+					message.payload = { result: 'debounced' };
+					return message;
+				}
+
+				const { webhookKey, workflowEntity, sessionId } = message.payload;
+
+				if (!push.getBackend().hasSessionId(sessionId)) break;
+
+				const testWebhooks = Container.get(TestWebhooks);
+
+				testWebhooks.clearTimeout(webhookKey);
+
+				const workflow = testWebhooks.toWorkflow(workflowEntity);
+
+				await testWebhooks.deactivateWebhooks(workflow);
+
+				break;
 			}
 
 			default:

packages/cli/src/services/orchestration/worker/handleCommandMessageWorker.ts

@@ -122,6 +122,13 @@ export function getWorkerCommandReceivedHandler(options: WorkerCommandReceivedHa
 						// await this.stopProcess();
 						break;
 					default:
+						if (
+							message.command === 'relay-execution-lifecycle-event' ||
+							message.command === 'clear-test-webhooks'
+						) {
+							break; // meant only for main
+						}
+
 						logger.debug(
 							// eslint-disable-next-line @typescript-eslint/restrict-template-expressions
 							`Received unknown command via channel ${COMMAND_REDIS_CHANNEL}: "${message.command}"`,

packages/cli/src/services/redis/RedisServiceCommands.ts

@@ -1,4 +1,4 @@
-import type { IPushDataWorkerStatusPayload } from '@/Interfaces';
+import type { IPushDataType, IPushDataWorkerStatusPayload, IWorkflowDb } from '@/Interfaces';
 
 export type RedisServiceCommand =
 	| 'getStatus'
@@ -8,7 +8,9 @@ export type RedisServiceCommand =
 	| 'reloadLicense'
 	| 'reloadExternalSecretsProviders'
 	| 'workflowActiveStateChanged' // multi-main only
-	| 'workflowFailedToActivate'; // multi-main only
+	| 'workflowFailedToActivate' // multi-main only
+	| 'relay-execution-lifecycle-event' // multi-main only
+	| 'clear-test-webhooks'; // multi-main only
 
 /**
  * An object to be sent via Redis pub/sub from the main process to the workers.
@@ -16,13 +18,27 @@ export type RedisServiceCommand =
  * @field targets: The targets to execute the command on. Leave empty to execute on all workers or specify worker ids.
  * @field payload: Optional arguments to be sent with the command.
  */
-type RedisServiceBaseCommand = {
+export type RedisServiceBaseCommand =
+	| {
 			senderId: string;
-	command: RedisServiceCommand;
+			command: Exclude<
+				RedisServiceCommand,
+				'relay-execution-lifecycle-event' | 'clear-test-webhooks'
+			>;
 			payload?: {
 				[key: string]: string | number | boolean | string[] | number[] | boolean[];
 			};
-};
+	  }
+	| {
+			senderId: string;
+			command: 'relay-execution-lifecycle-event';
+			payload: { type: IPushDataType; args: Record<string, unknown>; sessionId: string };
+	  }
+	| {
+			senderId: string;
+			command: 'clear-test-webhooks';
+			payload: { webhookKey: string; workflowEntity: IWorkflowDb; sessionId: string };
+	  };
 
 export type RedisServiceWorkerResponseObject = {
 	workerId: string;

packages/cli/src/services/test-webhook-registrations.service.ts

@@ -2,6 +2,7 @@ import { Service } from 'typedi';
 import { CacheService } from '@/services/cache/cache.service';
 import { type IWebhookData } from 'n8n-workflow';
 import type { IWorkflowDb } from '@/Interfaces';
+import { TEST_WEBHOOK_TIMEOUT, TEST_WEBHOOK_TIMEOUT_BUFFER } from '@/constants';
 
 export type TestWebhookRegistration = {
 	sessionId?: string;
@@ -20,6 +21,19 @@ export class TestWebhookRegistrationsService {
 		const hashKey = this.toKey(registration.webhook);
 
 		await this.cacheService.setHash(this.cacheKey, { [hashKey]: registration });
+
+		/**
+		 * Multi-main setup: In a manual webhook execution, the main process that
+		 * handles a webhook might not be the same as the main process that created
+		 * the webhook. If so, after the test webhook has been successfully executed,
+		 * the handler process commands the creator process to clear its test webhooks.
+		 * We set a TTL on the key so that it is cleared even on creator process crash,
+		 * with an additional buffer to ensure this safeguard expiration will not delete
+		 * the key before the regular test webhook timeout fetches the key to delete it.
+		 */
+		const ttl = TEST_WEBHOOK_TIMEOUT + TEST_WEBHOOK_TIMEOUT_BUFFER;
+
+		await this.cacheService.expire(this.cacheKey, ttl);
 	}
 
 	async deregister(arg: IWebhookData | string) {

packages/cli/src/workflows/workflow.service.ts

@@ -282,7 +282,7 @@ export class WorkflowService {
 		const newState = updatedWorkflow.active;
 
 		if (this.multiMainSetup.isEnabled && oldState !== newState) {
-			await this.multiMainSetup.broadcastWorkflowActiveStateChanged({
+			await this.multiMainSetup.publish('workflowActiveStateChanged', {
 				workflowId,
 				oldState,
 				newState,

packages/cli/test/integration/workflow.service.test.ts

@@ -90,22 +90,30 @@ describe('update()', () => {
 		const owner = await createOwner();
 		const workflow = await createWorkflow({ active: true }, owner);
 
-		const broadcastSpy = jest.spyOn(multiMainSetup, 'broadcastWorkflowActiveStateChanged');
+		const publishSpy = jest.spyOn(multiMainSetup, 'publish');
 
 		workflow.active = false;
 		await workflowService.update(owner, workflow, workflow.id);
 
-		expect(broadcastSpy).toHaveBeenCalledTimes(1);
+		expect(publishSpy).toHaveBeenCalledTimes(1);
+		expect(publishSpy).toHaveBeenCalledWith(
+			'workflowActiveStateChanged',
+			expect.objectContaining({
+				newState: false,
+				oldState: true,
+				workflowId: workflow.id,
+			}),
+		);
 	});
 
 	test('should not broadcast active workflow state change if state did not change', async () => {
 		const owner = await createOwner();
 		const workflow = await createWorkflow({ active: true }, owner);
 
-		const broadcastSpy = jest.spyOn(multiMainSetup, 'broadcastWorkflowActiveStateChanged');
+		const publishSpy = jest.spyOn(multiMainSetup, 'publish');
 
 		await workflowService.update(owner, workflow, workflow.id);
 
-		expect(broadcastSpy).not.toHaveBeenCalled();
+		expect(publishSpy).not.toHaveBeenCalled();
 	});
 });

packages/cli/test/unit/TestWebhooks.test.ts

@@ -39,7 +39,7 @@ let testWebhooks: TestWebhooks;
 
 describe('TestWebhooks', () => {
 	beforeAll(() => {
-		testWebhooks = new TestWebhooks(mock(), mock(), registrations);
+		testWebhooks = new TestWebhooks(mock(), mock(), registrations, mock());
 		jest.useFakeTimers();
 	});
 

packages/cli/test/unit/push/websocket.push.test.ts

@@ -65,7 +65,7 @@ describe('WebSocketPush', () => {
 			},
 		};
 
-		webSocketPush.send('executionRecovered', data, sessionId1);
+		webSocketPush.sendToOneSession('executionRecovered', data, sessionId1);
 
 		expect(mockWebSocket1.send).toHaveBeenCalledWith(
 			JSON.stringify({
@@ -91,7 +91,7 @@ describe('WebSocketPush', () => {
 			},
 		};
 
-		webSocketPush.broadcast('executionRecovered', data);
+		webSocketPush.sendToAllSessions('executionRecovered', data);
 
 		const expectedMsg = JSON.stringify({
 			type: 'executionRecovered',