Steps to reproduce:

1. composer install

2. cp .env.example .env

3. Create sqlite database

   touch database/db.sqlite
   php artisan migrate
   

4. Start local dynamodb

   docker run --rm -p 8000:8000 amazon/dynamodb-local:latest -jar DynamoDBLocal.jar -inMemory -sharedDb
   

5. Create cache table in dynamodb

   AWS_ACCESS_KEY_ID=test AWS_SECRET_ACCESS_KEY=test AWS_REGION=test aws dynamodb --endpoint=http://localhost:8000/ create-table --table-name cache --attribute-definitions AttributeName=key,AttributeType=S --key-schema AttributeName=key,KeyType=HASH --provisioned-throughput ReadCapacityUnits=1,WriteCapacityUnits=1
   

6. Start at least two worker processes

   php artisan queue:work & php artisan queue:work
   

7. dispatch sample job two times

   php artisan tinker --execute="\App\Jobs\SlowJob::dispatch();" && sleep 2 && php artisan tinker --execute="\App\Jobs\SlowJob::dispatch();"
   

8. check logs

   tail storage/logs/laravel.log
   #=>  [2022-07-19 12:50:18] local.INFO: Start: 2022-07-19 12:50:18  
        [2022-07-19 12:50:22] local.INFO: Start: 2022-07-19 12:50:22  
        [2022-07-19 12:50:23] local.INFO: End: 2022-07-19 12:50:23  
        [2022-07-19 12:50:27] local.INFO: End: 2022-07-19 12:50:27
   

   Two jobs are executed in parallel.