how prevent laravel's jobs run at the same time - laravel

Question

I have a job as below:
class ProcessActions implements ShouldQueue
{
use Dispatchable;
use InteractsWithQueue;
use Queueable;
use SerializesModels;
protected $user_id;
public $uniqueFor = 4;
/**
* Create a new job instance.
*
* #param mixed $action_id
*/
public function __construct($user_id)
{
$this->user_id = $user_id;
}
public function uniqueId()
{
return $this->user_id;
}
/**
* Handle a job failure.
*/
public function failed()
{
}
/**
* Execute the job.
*/
public function handle()
{
Log::debug('');
Log::debug('Started Time: '.date('Y-m-d H:i:s'));
try {
} catch (Exception $e) {
Log::critical('Error occurred.');
Log::critical($e);
// make the job failed
$this->job->fail($e);
}
}
public function middleware()
{
return [(new WithoutOverlapping($this->user_id))->releaseAfter(4)->expireAfter(4)];
}
}
How I should prevent jobs run at the same time? unique and WithoutOverlapping didn't work and I have jobs that run at the same time.
Actually I want jobs with same user_id run by 4 second delay.
Also as I checked jobs'available_at and time that I logged in handle have some seconds difference.

Answer 1

You can use Ratelimiting feature in laravel
You can read more about here - https://laravel.com/docs/8.x/queues#rate-limiting -
In your job class inside handle method add this code -Make sure key is a unique value,Here is a sample code
Basically it limit the worker to process one job for a user at a given time.see uuid,next job will be processed 4 sec after.
$uuid='process_action_'.$user_id;
Redis::funnel($uuid)->limit(1)->then(function () {
//job logic
}, function () {
//reattempt the job after 4 seconds
return $this->release(4);
});