Faktory vs Sidekiq: What are the differences?

Introduction:

In this Markdown code, we will provide key differences between Faktory and Sidekiq in a concise manner.

1. Concurrency Model: Faktory uses a decentralized, distributed, and scalable model where each job can be processed by any available worker. On the other hand, Sidekiq follows a centralized model with a single queue and multiple workers picking up jobs from the queue, which can lead to contention and bottleneck issues.

2. Fault Tolerance: Faktory offers built-in fault tolerance by automatically retrying failed jobs and storing job data in durable storage. It also provides job deduplication and job time-to-live features. Sidekiq, in contrast, relies on Redis for storage, which may result in job loss if the Redis server fails.

3. Job Prioritization: Faktory allows for job prioritization by assigning priority levels to jobs, ensuring that higher priority jobs get processed first. Sidekiq, however, does not natively support job prioritization and processes jobs in a first-in, first-out (FIFO) order.

4. Job Dependencies: Faktory supports job dependencies, allowing one job to depend on the completion of another job. This ensures that dependent jobs are executed only when their prerequisite jobs have successfully completed. Sidekiq does not provide native support for job dependencies.

5. Language Support: Faktory supports multiple programming languages, including Ruby, Python, and Node.js, enabling cross-language job processing. Sidekiq is primarily focused on Ruby and provides limited support for other languages.

6. Enterprise Features: Faktory offers additional enterprise features like job history tracking, job requeueing, and prioritization queues. Sidekiq, on the other hand, lacks these enterprise-level features and relies on third-party extensions for similar functionality.

In summary, Faktory differs from Sidekiq in its concurrency model, fault tolerance mechanisms, prioritization and dependency support, language versatility, and inclusion of enterprise features.