clustering when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your dads laptop while the queue is temporarily overloaded). Concur- rency Tasks are accounts for bursts of traffic. Rate limits can be set for each task type, or globally for all. Routing Using AMQP you can route tasks arbitrarily to different workers. Remote- control You can rate limit continue reading Setting up RabbitMQ. 1.3 First steps with Celery • Creating a simple task • Configuration • Running the celery worker server • Executing the task 1.3.1 Creating a simple task In this

clustering and HA when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your grandma’s laptop to help if the queue is temporarily congested). Concur- rency task type, or globally for all. Routing Using AMQP’s flexible routing model you can route tasks to different workers, or select different message topologies, by configuration or even at runtime. Remote- continue reading Setting up RabbitMQ. 1.3 First steps with Celery • Creating a simple task • Configuration • Running the celery worker server • Executing the task – Keeping Results • Where to go from

Sets of tasks, Subtasks and Callbacks HTTP Callback Tasks (Webhooks) Routing Tasks Configuration and defaults Example configuration file Concurrency settings Task result backend settings Database backend Tasks - celery.execute Task Result - celery.result Task Information and Utilities - celery.task Configuration - celery.conf Remote Management of Workers - celery.task.control HTTP Callback Tasks - celery Setting up RabbitMQ Installing RabbitMQ on OS X First steps with Celery Creating a simple task Configuration Running the celery worker server Executing the task Periodic Tasks Introduction Crontab-like

Callback Tasks (Webhooks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 2.8 Routing Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 3 Configuration and defaults 67 3.1 Example configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 3.2 Configuration Directives . . . . clustering and HA when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your grandma’s laptop to help if the queue is temporarily congested). Concur- rency

clustering and HA when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your grandma’s laptop to help if the queue is temporarily congested). Concur- rency task type, or globally for all. Routing Using AMQP’s flexible routing model you can route tasks to different workers, or select different message topologies, by configuration or even at runtime. Remote- Getting Started Celery Documentation, Release 2.5.5 1.2.1 Using RabbitMQ • Installation & Configuration • Installing the RabbitMQ Server – Setting up RabbitMQ – Installing RabbitMQ on OS X * Configuring

tasks, Subtasks and Callbacks HTTP Callback Tasks (Webhooks) Routing Tasks Monitoring and Management Guide Optimizing Concurrency Configuration and defaults Cookbook Contributing Community Resources Tutorials Setting up RabbitMQ Installing RabbitMQ on OS X First steps with Celery Creating a simple task Configuration Running the celery worker server Executing the task Where to go from here Resources Getting clustering and HA when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your grandma’s laptop to help if the queue is temporarily congested). Concurrency Concurrency

Callback Tasks (Webhooks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 2.8 Routing Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 3 Configuration and defaults 63 3.1 Example configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 3.2 Configuration Directives . . . . Utilities - celery.task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 9.7 Configuration - celery.conf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Callback Tasks (Webhooks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 2.8 Routing Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 3 Configuration and defaults 83 3.1 Example configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 3.2 Configuration Directives . . . . clustering and HA when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your grandma’s laptop to help if the queue is temporarily congested). Concur- rency

tasks, Subtasks and Callbacks HTTP Callback Tasks (Webhooks) Routing Tasks Monitoring and Management Guide Optimizing Concurrency Configuration and defaults Cookbook Contributing Community Resources Tutorials Setting up RabbitMQ Installing RabbitMQ on OS X First steps with Celery Creating a simple task Configuration Running the celery worker server Executing the task Where to go from here Resources Getting clustering and HA when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your grandma’s laptop to help if the queue is temporarily congested). Concurrency Concurrency

Subtasks and Callbacks HTTP Callback Tasks (Webhooks) Routing Tasks Monitoring and Management Guide Optimizing Concurrency Signals Configuration and defaults Cookbook Contributing Community Resources CouchDB Using Beanstalk First steps with Celery Choosing your Broker Creating a simple task Configuration Running the celery worker server Executing the task Where to go from here Resources Getting clustering and HA when used in combination with RabbitMQ. You can set up new workers without central configuration (e.g. use your grandma’s laptop to help if the queue is temporarily congested). Concurrency Concurrency