How do you debug and resolve Queue Worker starvation and RabbitMQ/Redis Queue backpressure in Laravel?

Solution: Strict Queue Prioritization & Dedicated Worker Pools

1. Never dump all jobs into a single default queue.
2. Partition queues by SLA: high, default, low, notifications:

   SendPasswordResetNotification::dispatch($user)->onQueue('high');
   SendMarketingNewsletter::dispatch($campaign)->onQueue('low');
   

3. Configure Supervisor with weighted prioritization:

   # Dedicated High-Priority worker
   php artisan queue:work --queue=high,default,low --tries=3 --timeout=60
   

4. Queue Rate Limiting:

   public function middleware(): array
   {
       return [(new WithoutOverlapping($this->userId))->releaseAfter(60)];
   }