fix(core): Ensure graceful shutdown for workers (n8n-io#9547)

packages/cli/src/Queue.ts

@@ -109,8 +109,11 @@ export class Queue {
 		return await this.jobQueue.client.ping();
 	}
 
-	async pause(isLocal?: boolean): Promise<void> {
-		return await this.jobQueue.pause(isLocal);
+	async pause({
+		isLocal,
+		doNotWaitActive,
+	}: { isLocal?: boolean; doNotWaitActive?: boolean } = {}): Promise<void> {
+		return await this.jobQueue.pause(isLocal, doNotWaitActive);
 	}
 
 	getBullObjectInstance(): JobQueue {

packages/cli/src/commands/worker.ts

@@ -63,23 +63,23 @@ export class Worker extends BaseCommand {
 	async stopProcess() {
 		this.logger.info('Stopping n8n...');
 
-		// Stop accepting new jobs
-		await Worker.jobQueue.pause(true);
+		// Stop accepting new jobs, `doNotWaitActive` allows reporting progress
+		await Worker.jobQueue.pause({ isLocal: true, doNotWaitActive: true });
 
 		try {
 			await this.externalHooks?.run('n8n.stop', []);
 
-			const hardStopTime = Date.now() + this.gracefulShutdownTimeoutInS;
+			const hardStopTimeMs = Date.now() + this.gracefulShutdownTimeoutInS * 1000;
 
 			// Wait for active workflow executions to finish
 			let count = 0;
 			while (Object.keys(Worker.runningJobs).length !== 0) {
 				if (count++ % 4 === 0) {
-					const waitLeft = Math.ceil((hardStopTime - Date.now()) / 1000);
+					const waitLeft = Math.ceil((hardStopTimeMs - Date.now()) / 1000);
 					this.logger.info(
 						`Waiting for ${
 							Object.keys(Worker.runningJobs).length
-						} active executions to finish... (wait ${waitLeft} more seconds)`,
+						} active executions to finish... (max wait ${waitLeft} more seconds)`,
 					);
 				}
 
@@ -483,6 +483,16 @@ export class Worker extends BaseCommand {
 			await this.setupHealthMonitor();
 		}
 
+		if (process.stdout.isTTY) {
+			process.stdin.setRawMode(true);
+			process.stdin.resume();
+			process.stdin.setEncoding('utf8');
+
+			process.stdin.on('data', (key: string) => {
+				if (key.charCodeAt(0) === 3) process.kill(process.pid, 'SIGINT'); // ctrl+c
+			});
+		}
+
 		// Make sure that the process does not close
 		await new Promise(() => {});
 	}