feat: resume primary instance queue if no worker is available

Signed-off-by: mertmit <mertmit99@gmail.com>

packages/nocodb/src/modules/jobs/jobs.module.ts

@@ -47,10 +47,7 @@ import { JobsEventService as FallbackJobsEventService } from './fallback/jobs-ev
   providers: [
     ...(!process.env['NC_WORKER_CONTAINER'] ? [JobsGateway] : []),
     ...(process.env['NC_REDIS_URL']
-      ? [
-          JobsRedisService,
-          ...(process.env['NC_WORKER_CONTAINER'] ? [JobsEventService] : []),
-        ]
+      ? [JobsRedisService, JobsEventService]
       : [FallbackQueueService, FallbackJobsEventService]),
     {
       provide: 'JobsService',

packages/nocodb/src/modules/jobs/redis/jobs-event.service.ts

@@ -6,21 +6,31 @@ import {
 } from '@nestjs/bull';
 import { Job } from 'bull';
 import boxen from 'boxen';
-import { OnEvent } from '@nestjs/event-emitter';
+import { EventEmitter2, OnEvent } from '@nestjs/event-emitter';
 import { JobEvents, JOBS_QUEUE, JobStatus } from '../../../interface/Jobs';
 import { JobsRedisService } from './jobs-redis.service';
 
 @Processor(JOBS_QUEUE)
 export class JobsEventService {
-  constructor(private jobsRedisService: JobsRedisService) {}
+  constructor(
+    private jobsRedisService: JobsRedisService,
+    private eventEmitter: EventEmitter2,
+  ) {}
 
   @OnQueueActive()
   onActive(job: Job) {
-    this.jobsRedisService.publish(`jobs-${job.id.toString()}`, {
-      cmd: JobEvents.STATUS,
-      id: job.id.toString(),
-      status: JobStatus.ACTIVE,
-    });
+    if (process.env['NC_WORKER_CONTAINER']) {
+      this.jobsRedisService.publish(`jobs-${job.id.toString()}`, {
+        cmd: JobEvents.STATUS,
+        id: job.id.toString(),
+        status: JobStatus.ACTIVE,
+      });
+    } else {
+      this.eventEmitter.emit(JobEvents.STATUS, {
+        id: job.id.toString(),
+        status: JobStatus.ACTIVE,
+      });
+    }
   }
 
   @OnQueueFailed()
@@ -36,36 +46,62 @@ export class JobsEventService {
       ),
     );
 
-    this.jobsRedisService.publish(`jobs-${job.id.toString()}`, {
-      cmd: JobEvents.STATUS,
-      id: job.id.toString(),
-      status: JobStatus.FAILED,
-      data: {
-        error: {
-          message: error?.message,
+    if (process.env['NC_WORKER_CONTAINER']) {
+      this.jobsRedisService.publish(`jobs-${job.id.toString()}`, {
+        cmd: JobEvents.STATUS,
+        id: job.id.toString(),
+        status: JobStatus.FAILED,
+        data: {
+          error: {
+            message: error?.message,
+          },
         },
-      },
-    });
+      });
+    } else {
+      this.jobsRedisService.unsubscribe(`jobs-${job.id.toString()}`);
+      this.eventEmitter.emit(JobEvents.STATUS, {
+        id: job.id.toString(),
+        status: JobStatus.FAILED,
+        data: {
+          error: {
+            message: error?.message,
+          },
+        },
+      });
+    }
   }
 
   @OnQueueCompleted()
   onCompleted(job: Job, data: any) {
-    this.jobsRedisService.publish(`jobs-${job.id.toString()}`, {
-      cmd: JobEvents.STATUS,
-      id: job.id.toString(),
-      status: JobStatus.COMPLETED,
-      data: {
-        result: data,
-      },
-    });
+    if (process.env['NC_WORKER_CONTAINER']) {
+      this.jobsRedisService.publish(`jobs-${job.id.toString()}`, {
+        cmd: JobEvents.STATUS,
+        id: job.id.toString(),
+        status: JobStatus.COMPLETED,
+        data: {
+          result: data,
+        },
+      });
+    } else {
+      this.jobsRedisService.unsubscribe(`jobs-${job.id.toString()}`);
+      this.eventEmitter.emit(JobEvents.STATUS, {
+        id: job.id.toString(),
+        status: JobStatus.COMPLETED,
+        data: {
+          result: data,
+        },
+      });
+    }
   }
 
   @OnEvent(JobEvents.LOG)
   onLog(data: { id: string; data: { message: string } }) {
-    this.jobsRedisService.publish(`jobs-${data.id}`, {
-      cmd: JobEvents.LOG,
-      id: data.id,
-      data: data.data,
-    });
+    if (process.env['NC_WORKER_CONTAINER']) {
+      this.jobsRedisService.publish(`jobs-${data.id}`, {
+        cmd: JobEvents.LOG,
+        id: data.id,
+        data: data.data,
+      });
+    }
   }
 }

packages/nocodb/src/modules/jobs/redis/jobs.service.ts

@@ -4,21 +4,39 @@ import { Queue } from 'bull';
 import { EventEmitter2 } from '@nestjs/event-emitter';
 import { JobEvents, JOBS_QUEUE, JobStatus } from '../../../interface/Jobs';
 import { JobsRedisService } from './jobs-redis.service';
+import type { OnModuleInit } from '@nestjs/common';
 
 @Injectable()
-export class JobsService {
+export class JobsService implements OnModuleInit {
   constructor(
     @InjectQueue(JOBS_QUEUE) private readonly jobsQueue: Queue,
     private jobsRedisService: JobsRedisService,
     private eventEmitter: EventEmitter2,
-  ) {
+  ) {}
+
+  // pause primary instance queue
+  async onModuleInit() {
     if (!process.env['NC_WORKER_CONTAINER']) {
-      this.jobsQueue.pause(true);
+      await this.jobsQueue.pause(true);
     }
   }
 
   async add(name: string, data: any) {
+    // resume primary instance queue if there is no worker
+    const workerCount = (await this.jobsQueue.getWorkers()).length;
+    const localWorkerPaused = await this.jobsQueue.isPaused(true);
+
+    // if there is no worker and primary instance queue is paused, resume it
+    // if there is any worker and primary instance queue is not paused, pause it
+    if (workerCount < 1 && localWorkerPaused) {
+      await this.jobsQueue.resume(true);
+    } else if (workerCount > 0 && !localWorkerPaused) {
+      await this.jobsQueue.pause(true);
+    }
+
     const job = await this.jobsQueue.add(name, data);
+
+    // subscribe to job events
     this.jobsRedisService.subscribe(`jobs-${job.id.toString()}`, (data) => {
       const cmd = data.cmd;
       delete data.cmd;
@@ -34,6 +52,7 @@ export class JobsService {
           break;
       }
     });
+
     return job;
   }