how to use queue when requests are parallel in laravel - laravel

my function in controller Calling parallel and i create a job for use queue in laravel Because parallel call causing the problem
i call this job in my function :
$this->dispatch(new ProcessReferal($orderId));
and i run this command in terminal :
php artisan queue:work --tries=3
But my job is still running in parallel
And processes the process simultaneously
what's wrong?

If you are checking it on Local server. Then, You have to add QUEUE_DRIVER=database in .env file.
QUEUE_DRIVER=sync is used for parallel call

Hi there,
With queue laravel, you need config some info in your code:
See more: https://laravel.com/docs/5.8/queues#connections-vs-queues
First:
Driver: default sync, so you need change it to: database, redis...
You can change it in .env file (QUEUE_DRIVER=database...)
Connections: Very important if you setting driver is database and use mutil DB for your project.
Second:
Laravel queue have some config, but i think we need see 3 thing: retry_after, timeout, tries. When you work with large job, retry_after and timeout is very important.
Hope it can help you.

Related

Recently added json language file values are not updated in email blade

I send mail as a cron job with Laravel. For this, when I want to use the last value I added in my resources/lang/de.json file in the mail blade template file(resources/views/mails/...blade.php), it gives an output as if such a value is not defined. However, if I use the same key in a blade file I created before, it works without any errors. In addition, the keys that I added to the same file (de.json) in the first time work without errors in the same mail blade file.
Thinking it's some kind of cache situation, I researched and found out that restarting the queue worker might fix the problem. However, both locally and on the server with ssh.
'php artisan queue:restart'
Even though I ran the command, there was no improvement.
Do you have any ideas?
Since queue workers are long-lived processes, they will not notice changes to your code without being restarted. So, the simplest way to deploy an application using queue workers is to restart the workers during your deployment process. https://laravel.com/docs/9.x/queues#queue-workers-and-deployment
but php artisan queue:restart will instruct all queue workers to gracefully exit after they finish processing their current job so that no existing jobs are lost. And I see a lot of issues with this command not to solve restart and deploy the worker.
So, Simplest way,
try to stop the worker manually (ctrl+C)
start the worker again with php artisan queue:work again.
might this help.

laravel queue without DB query

I want to minimize DB queries for an incoming request. It currently requires writes to 6 different tables. The processing does not need to be done before returning the response.
I therefore consider laravel queues, but I wonder if I could also get rid of the separate query that is needed to write to the queue/jobs table. Can I store jobs locally instead of writing them to the DB?
One possible hack would be to have a separate route that I send the data to that does the processing. This way i would not need to write to the DB, but could rather just forward the data to that route without waiting for a response. Would this be faster than writing a job to the DB?
If you don't want to use native queue driver (that is using DB) I can advised you to use Rabbit-MQ. here is a good driver implementation for Laravel:
RabbitMQ Queue driver for Larave
You will have to run deamon service in the CLI using:
./artisan queue:work (deamon version - after you made each change in code you will have to call ./artisan queue:restart to refresh the code for queue)
or
./artisan queue:listen (for ./artisan queue:work --once process productor)
or use Supervisor with:
./artisan queue:work --once
(my personal favourite)
After that each task you will put to queue (with dispatch() or \Queue::push()) will be delivered to RabbitMQ server and will be exectuted through the queue driver.

Laravel 5.5 listen dynamically generated queues

My application requires to have dynamically generated queues with some prefix like "process_user_1", "process_user_2", "process_user_n"
The main idea is to separate execution of some jobs depends on model ID.
To run watcher I need execute command php artisan queue:work --queue process_user_1
I didn't find possibility to put pattern like
php artisan queue:work --queue process_user_*
And only one way what I found it is to run them manually each time before job is sent. But it's so dirty...
Maybe someone know another way?
EXAMPLE:
I have 10 users. Each user has 100 jobs to process in queue.
If I put them to one queue like "process_user_job" users will wait a
lot of time when jobs will be finished.
So I want to separate queues to speed up result returning

Confusions about Laravel Queues

I am using Laravel Queues and I am using IronMQ for it. But I have little bit confusion about how this process.
I have set my default connection in queue.php as 'default' => 'iron' and also set iron settings in same file.
Now I use
$this->dispatch(new createEvents($data, $user));
while createEvents class is a job class created as explained in Laravel tutorial. Now when following code is executed
$this->dispatch(new createEvents($data, $user));
It successfully creates a queue in my ironmQ account under project.
Now here is my confusion starts. I have queued some task to that queue but now how will I run that queue? How will I run the task that is queued? Do I need to create some extra code for it or Do I need to do some settings for it. Please guide
You don't need to go to your server and run this command by hand, you need to have process that will keep running, and perform those jobs.
I would recomment "supervisord"
http://supervisord.org/
This programs is for launching a script and keep it running, even if it fails, it will relaunch it(until certain amount of failures of course)
After you install it, you should probably create this supervisor task file:
[program:queue]
command=php artisan queue:listen --tries=3 --env=your_environment
directory=/path/to/laravel
stdout_logfile=/path/to/laravel/app/storage/logs/supervisord.log
redirect_stderr=true
autostart=true
autorestart=true
You can do php artisan queue:listen it will start all listed queue
or if you specify the queue name php artisan queue:listen queue_name
Don't forget to run php artisan queue:failed-table. This will make failed_jobs table in your database.
So if anything goes wrong when the queue run it will save failed queue to the database.
If you want the failed queue to get insert the database add this when run listen:
php artisan queue:listen connection-name --tries=3
to run the failed queue php artisan queue:retry all
Hope i answer your question.
Once your job is in the queue, and according to your question it is, you have two simple options:
Run one or more queue listeners on the same/different servers (using supervisor is recommended in Laravel documentation, see sample configuration)
Run queue worker manually or automatically, on regular basis (crontab)
php artisan queue:work iron
This command will fetch one job from the queue and process it. You launch it again – it fetches one more, and so on.
If you don't do extra processing and your queue driver is not 'sync' – your job will never see the day light.
My advice – launch queue workers manually on your development/test machine, and use supervisor on production server.
If your project is small and it doesn't require great scalability, you may want to simply switch to 'sync' driver (jobs will be processed immediately). There is no need to make the infrastructure more complicated, unless there is real necessity!

Laravel/Lumen - How to trigger a job process from a website?

I'm using Lumen queues. To start the jobs being processed, the docs indicate to run the queue listener from the command line like so:
php artisan queue:listen
I'd like to trigger my queue jobs processes directly from my code. How to do so?
You can call any artisan command you like directly from your code:
Artisan::call('queue:listen');
For information, read the docs.

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