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Resque vs Sidekiq: What are the differences?


Resque and Sidekiq are both job processing libraries in Ruby that help run background tasks efficiently. While they serve a similar purpose, there are key differences between the two.

  1. Concurrency Model: Resque uses a single worker process per job and relies on forking to achieve parallelism. On the other hand, Sidekiq uses threads within a single process, allowing for higher concurrency and efficient utilization of system resources.

  2. Redis as Backend: Resque relies on Redis as its backend for job queueing, while Sidekiq also uses Redis but leverages its native data structures and features more extensively. This difference gives Sidekiq an advantage in terms of performance and advanced queueing capabilities.

  3. Error Handling: Resque provides a simple built-in mechanism for retrying failed jobs a certain number of times or moving them to a failure queue. Sidekiq, however, offers more advanced error handling features, such as automatic retries with exponential backoff and dead-letter queues for handling persistent errors.

  4. Monitoring and Dashboard: Sidekiq comes with a built-in web-based dashboard that provides detailed monitoring and metrics about job processing. Resque, in contrast, does not offer a built-in dashboard and requires external tools or custom implementations for monitoring.

  5. Middleware Support: Sidekiq supports middleware, which allows developers to hook into the job lifecycle and perform additional actions or modify the behavior of job processing. Resque does not have built-in middleware support, making it less extensible in terms of intercepting and modifying job processing.

  6. Community and Ecosystem: Sidekiq has a more active and larger community compared to Resque, resulting in a richer ecosystem of plugins, extensions, and community support. Resque, while still popular, may have a smaller community and fewer resources available for troubleshooting and extending its functionality.

In Summary, Resque and Sidekiq have differences in their concurrency model, backend utilization, error handling capabilities, monitoring features, middleware support, and community size.

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Pros of Resque
Pros of Sidekiq
  • 5
  • 3
  • 1
    Easy to use on heroku
  • 124
  • 99
    Efficient background processing
  • 60
  • 37
    Better then resque
  • 26
    Great documentation
  • 15
    Admin tool
  • 14
    Great community
  • 8
    Integrates with redis automatically, with zero config
  • 7
    Stupidly simple to integrate and run on Rails/Heroku
  • 7
    Great support
  • 3
  • 3
  • 2
    Pro version
  • 1
    Dashboard w/live polling
  • 1
    Great ecosystem of addons
  • 1

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What is Resque?

Background jobs can be any Ruby class or module that responds to perform. Your existing classes can easily be converted to background jobs or you can create new classes specifically to do work. Or, you can do both.

What is Sidekiq?

Sidekiq uses threads to handle many jobs at the same time in the same process. It does not require Rails but will integrate tightly with Rails 3/4 to make background processing dead simple.

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Blog Posts

Jun 6 2019 at 5:11PM


What are some alternatives to Resque and Sidekiq?
Delayed_job (or DJ) encapsulates the common pattern of asynchronously executing longer tasks in the background. It is a direct extraction from Shopify where the job table is responsible for a multitude of core tasks.
Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.
Beanstalks's interface is generic, but was originally designed for reducing the latency of page views in high-volume web applications by running time-consuming tasks asynchronously.
RabbitMQ gives your applications a common platform to send and receive messages, and your messages a safe place to live until received.
It is a software task management and build automation tool. It allows the user to specify tasks and describe dependencies as well as to group tasks in a namespace.
See all alternatives