fix(core): Do not load ScalingService in regular mode (no-changelog)

packages/cli/src/WorkflowRunner.ts

@@ -29,7 +29,7 @@ import { ExternalHooks } from '@/ExternalHooks';
 import type { IExecutionResponse, IWorkflowExecutionDataProcess } from '@/Interfaces';
 import { NodeTypes } from '@/NodeTypes';
 import type { Job, JobData, JobResult } from '@/scaling/types';
-import { ScalingService } from '@/scaling/scaling.service';
+import type { ScalingService } from '@/scaling/scaling.service';
 import * as WorkflowHelpers from '@/WorkflowHelpers';
 import * as WorkflowExecuteAdditionalData from '@/WorkflowExecuteAdditionalData';
 import { generateFailedExecutionFromError } from '@/WorkflowHelpers';
@@ -40,7 +40,7 @@ import { EventService } from './events/event.service';
 
 @Service()
 export class WorkflowRunner {
-	private readonly scalingService: ScalingService;
+	private scalingService: ScalingService;
 
 	private executionsMode = config.getEnv('executions.mode');
 
@@ -53,11 +53,7 @@ export class WorkflowRunner {
 		private readonly nodeTypes: NodeTypes,
 		private readonly permissionChecker: PermissionChecker,
 		private readonly eventService: EventService,
-	) {
-		if (this.executionsMode === 'queue') {
-			this.scalingService = Container.get(ScalingService);
-		}
-	}
+	) {}
 
 	/** The process did error */
 	async processError(
@@ -360,6 +356,11 @@ export class WorkflowRunner {
 			loadStaticData: !!loadStaticData,
 		};
 
+		if (!this.scalingService) {
+			const { ScalingService } = await import('@/scaling/scaling.service');
+			this.scalingService = Container.get(ScalingService);
+		}
+
 		let priority = 100;
 		if (realtime === true) {
 			// Jobs which require a direct response get a higher priority
@@ -404,7 +405,7 @@ export class WorkflowRunner {
 			async (resolve, reject, onCancel) => {
 				onCancel.shouldReject = false;
 				onCancel(async () => {
-					await Container.get(ScalingService).stopJob(job);
+					await this.scalingService.stopJob(job);
 
 					// We use "getWorkflowHooksWorkerExecuter" as "getWorkflowHooksWorkerMain" does not contain the
 					// "workflowExecuteAfter" which we require.

packages/cli/src/commands/webhook.ts

@@ -4,7 +4,6 @@ import { ApplicationError } from 'n8n-workflow';
 
 import config from '@/config';
 import { ActiveExecutions } from '@/ActiveExecutions';
-import { ScalingService } from '@/scaling/scaling.service';
 import { WebhookServer } from '@/webhooks/WebhookServer';
 import { BaseCommand } from './BaseCommand';
 
@@ -96,6 +95,7 @@ export class Webhook extends BaseCommand {
 			);
 		}
 
+		const { ScalingService } = await import('@/scaling/scaling.service');
 		await Container.get(ScalingService).setupQueue();
 		await this.server.start();
 		this.logger.debug(`Webhook listener ID: ${this.server.uniqueInstanceId}`);

packages/cli/src/commands/worker.ts

@@ -7,7 +7,7 @@ import { sleep, ApplicationError } from 'n8n-workflow';
 import * as Db from '@/Db';
 import * as ResponseHelper from '@/ResponseHelper';
 import config from '@/config';
-import { ScalingService } from '@/scaling/scaling.service';
+import type { ScalingService } from '@/scaling/scaling.service';
 import { N8N_VERSION, inTest } from '@/constants';
 import type { ICredentialsOverwrite } from '@/Interfaces';
 import { CredentialsOverwrites } from '@/CredentialsOverwrites';
@@ -171,6 +171,7 @@ export class Worker extends BaseCommand {
 	}
 
 	async initScalingService() {
+		const { ScalingService } = await import('@/scaling/scaling.service');
 		this.scalingService = Container.get(ScalingService);
 
 		await this.scalingService.setupQueue();

packages/cli/src/executions/__tests__/execution.service.test.ts

@@ -6,15 +6,16 @@ import { AbortedExecutionRetryError } from '@/errors/aborted-execution-retry.err
 import { MissingExecutionStopError } from '@/errors/missing-execution-stop.error';
 import type { ActiveExecutions } from '@/ActiveExecutions';
 import type { IExecutionResponse } from '@/Interfaces';
-import type { ScalingService } from '@/scaling/scaling.service';
+import { ScalingService } from '@/scaling/scaling.service';
 import type { WaitTracker } from '@/WaitTracker';
 import type { ExecutionRepository } from '@/databases/repositories/execution.repository';
 import type { ExecutionRequest } from '@/executions/execution.types';
 import type { ConcurrencyControlService } from '@/concurrency/concurrency-control.service';
 import type { Job } from '@/scaling/types';
+import { mockInstance } from '@test/mocking';
 
 describe('ExecutionService', () => {
-	const scalingService = mock<ScalingService>();
+	const scalingService = mockInstance(ScalingService);
 	const activeExecutions = mock<ActiveExecutions>();
 	const executionRepository = mock<ExecutionRepository>();
 	const waitTracker = mock<WaitTracker>();
@@ -23,7 +24,6 @@ describe('ExecutionService', () => {
 	const executionService = new ExecutionService(
 		mock(),
 		mock(),
-		scalingService,
 		activeExecutions,
 		executionRepository,
 		mock(),

packages/cli/src/executions/execution.service.ts

@@ -1,4 +1,4 @@
-import { Service } from 'typedi';
+import { Container, Service } from 'typedi';
 import { GlobalConfig } from '@n8n/config';
 import { validate as jsonSchemaValidate } from 'jsonschema';
 import type {
@@ -24,7 +24,6 @@ import type {
 	IWorkflowExecutionDataProcess,
 } from '@/Interfaces';
 import { NodeTypes } from '@/NodeTypes';
-import { ScalingService } from '@/scaling/scaling.service';
 import type { ExecutionRequest, ExecutionSummaries, StopResult } from './execution.types';
 import { WorkflowRunner } from '@/WorkflowRunner';
 import type { IGetExecutionsQueryFilter } from '@db/repositories/execution.repository';
@@ -85,7 +84,6 @@ export class ExecutionService {
 	constructor(
 		private readonly globalConfig: GlobalConfig,
 		private readonly logger: Logger,
-		private readonly scalingService: ScalingService,
 		private readonly activeExecutions: ActiveExecutions,
 		private readonly executionRepository: ExecutionRepository,
 		private readonly workflowRepository: WorkflowRepository,
@@ -471,12 +469,14 @@ export class ExecutionService {
 			this.waitTracker.stopExecution(execution.id);
 		}
 
-		const jobs = await this.scalingService.findJobsByStatus(['active', 'waiting']);
+		const { ScalingService } = await import('@/scaling/scaling.service');
+		const scalingService = Container.get(ScalingService);
+		const jobs = await scalingService.findJobsByStatus(['active', 'waiting']);
 
 		const job = jobs.find(({ data }) => data.executionId === execution.id);
 
 		if (job) {
-			await this.scalingService.stopJob(job);
+			await scalingService.stopJob(job);
 		} else {
 			this.logger.debug('Job to stop not in queue', { executionId: execution.id });
 		}

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

@@ -22,7 +22,6 @@ describe('ExecutionService', () => {
 			mock(),
 			mock(),
 			mock(),
-			mock(),
 			executionRepository,
 			Container.get(WorkflowRepository),
 			mock(),