Laravel Horizon not executing pending jobs - Kubernetes and Docker environment

user_13695933 0
Viewed 8015

We have two different pods in Kubernetes for our Laravel app,

  • one running apache serving on port 80, (CMD /usr/sbin/apache2ctl -D FOREGROUND)
  • and another running worker (Laravel Horizon) (CMD php /var/www/artisan horizon)

The issue is when I check the horizon dashboard, it says 'Active', and I can see the Jobs in the 'Pending Jobs' section, but they never actually execute. They are just sitting there idle.

Now, when I SSH in the pod running apache and manually and run the command 'php artisan horizon' than it actually executes all pending jobs.

I have already ensured the followings:

  1. Both the pods are connected with the same Redis database service
  2. Horizon Prefix is the same for both the pods
laravel-horizon laravel kubernetes docker php
5 Answers

Double check your APP_ENV matches one of the environments in the horizon.php config. Otherwise horizon will not start any queue workers.

By default only local and production environments are provided:

https://laravel.com/docs/8.x/horizon#environments

user_41664590

After struggling for days, I got the answer to this problem.

While using Redis as a cache, queue, or broadcast broker in the docker environment, we need to make sure that the following environment variables are defined properly and they must be the same across all the pods.

  • CACHE_PREFIX
  • REDIS_PREFIX
  • REDIS_CACHE_DB
  • HORIZON_PREFIX

Hope this will help others trying to deploy the Laravel apps using Kubernetes and Docker.

user_136959330

In my case, I need to change my app environment from prod to production

APP_ENV=production
user_142840810

In my case I added the jobs into "emails" queue, but horizon.php config file didn't specify this queue name for supervisor-1 :-)

user_21587840

I just restart Redis server

/etc/init.d/redis-server restart
user_131794360
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