fix: Start queue worker with service start instead of first call (#34903)

.changeset/fifty-apricots-clean.md

+---
+"@rocket.chat/omnichannel-services": patch
+---
+
+Fixes a behavior when running microservices that caused queue worker to process just the first 60 seconds of request.
+
+This was due to a mistakenly bound context. Queue Worker was changed to start doing work only after it received the first request.
+
+However, with the introduction of ASL and actual context on calls, the worker registration was absorbing the context of the call that created them, causing service calls happening inside the callbacks to fail because of a timeout.

ee/packages/omnichannel-services/src/QueueWorker.ts

@@ -11,14 +11,12 @@ export class QueueWorker extends ServiceClass implements IQueueWorkerService {
 	protected retryCount = 5;
 
 	// Default delay is 5 seconds
-	protected retryDelay = 5000;
+	protected retryDelay = Number(process.env.RETRY_DELAY) || 5000;
 
 	protected queue: MessageQueue;
 
 	private logger: Logger;
 
-	private queueStarted = false;
-
 	constructor(
 		private readonly db: Db,
 		loggerClass: typeof Logger,
@@ -28,7 +26,7 @@ export class QueueWorker extends ServiceClass implements IQueueWorkerService {
 		// eslint-disable-next-line new-cap
 		this.logger = new loggerClass('QueueWorker');
 		this.queue = new MessageQueue();
-		this.queue.pollingInterval = 5000;
+		this.queue.pollingInterval = Number(process.env.POLLING_INTERVAL) || 5000;
 	}
 
 	isServiceNotFoundMessage(message: string): boolean {
@@ -46,6 +44,7 @@ export class QueueWorker extends ServiceClass implements IQueueWorkerService {
 
 		try {
 			await this.createIndexes();
+			this.registerWorkers();
 		} catch (e) {
 			this.logger.fatal(e, 'Fatal error occurred when registering workers');
 			process.exit(1);
@@ -55,7 +54,7 @@ export class QueueWorker extends ServiceClass implements IQueueWorkerService {
 	async createIndexes(): Promise<void> {
 		this.logger.info('Creating indexes for queue worker');
 
-		// Library doesnt create indexes by itself, for some reason
+		// Library doesn't create indexes by itself, for some reason
 		// This should create the indexes we need and improve queue perf on reading
 		await this.db.collection(this.queue.collectionName).createIndex({ type: 1 });
 		await this.db.collection(this.queue.collectionName).createIndex({ rejectedTime: 1 }, { sparse: true });
@@ -105,8 +104,6 @@ export class QueueWorker extends ServiceClass implements IQueueWorkerService {
 
 		this.logger.info('Registering workers of type "workComplete"');
 		this.queue.registerWorker('workComplete', this.workerCallback.bind(this));
-
-		this.queueStarted = true;
 	}
 
 	private matchServiceCall(service: string): boolean {
@@ -123,10 +120,6 @@ export class QueueWorker extends ServiceClass implements IQueueWorkerService {
 	// This is a "generic" job that allows you to call any service
 	async queueWork<T extends Record<string, unknown>>(queue: Actions, to: string, data: T): Promise<void> {
 		this.logger.info(`Queueing work for ${to}`);
-		if (!this.queueStarted) {
-			this.registerWorkers();
-		}
-
 		if (!this.matchServiceCall(to)) {
 			// We don't want to queue calls to invalid service names
 			throw new Error(`Invalid service name ${to}`);
@@ -150,8 +143,4 @@ export class QueueWorker extends ServiceClass implements IQueueWorkerService {
 			])
 			.toArray();
 	}
-
-	async isQueueStarted(): Promise<boolean> {
-		return this.queueStarted;
-	}
 }