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Creating jobs is super simple, you just need to persist an instance of
<?php $job = new Job('my-symfony2:command', array('some-args', 'or', '--options="foo"')); $em->persist($job); $em->flush($job);
If you want to have a job run after another job finishes, you can also achieve this quite easily:
<?php $job = new Job('a'); $dependentJob = new Job('b'); $dependentJob->addDependency($job); $em->persist($job); $em->persist($dependentJob); $em->flush();
If you want to schedule a job :
<?php $job = new Job('a'); $date = new DateTime(); $date->add(new DateInterval('PT30M')); $job->setExecuteAfter($date); $em->persist($job); $em->flush();
If you would like to better control the concurrency of a specific job type, you can use queues:
<?php $job = new Job('a', array(), true, "aCoolQueue"); $em->persist($job); $em->flush();
Queues allow you to enforce stricter limits as to how many jobs are running per queue. By default, the number of jobs per queue is not limited as such queues will have no effect (jobs would just be processed in the order that they were created in). To define a limit for a queue, you can use the bundle?s configuration:
jms_job_queue: queue_options_defaults: max_concurrent_jobs: 3 # This limit applies to all queues (including the default queue). # So each queue may only process 3 jobs simultaneously. queue_options: foo: max_concurrent_jobs: 2 # This limit applies only to the "foo" queue.
jms-job-queue:runcommand separately. There is no way to specify a global limit for all instances.
By default, all jobs are executed in the order in which they are scheduled (assuming they are in the same queue). If you would like to prioritize certain jobs in the same queue, you can set a priority:
$job = new Job('a', array(), true, Job::DEFAULT_QUEUE, Job::PRIORITY_HIGH); $em->persist($job); $em->flush();
The priority is a simple integer - the higher the number, the sooner a job is executed.