An ActiveJob extension that makes background jobs interruptible and resumable by design, saving progress with checkpoints.
Job Iteration is a Ruby gem that extends ActiveJob to make background jobs interruptible and resumable by design. It solves the problem of long-running jobs losing progress due to infrastructure interruptions like deploys, worker restarts, or cloud environment disruptions by automatically saving checkpoints after each iteration.
Ruby on Rails developers building applications with long-running background jobs that need to survive in cloud or high-availability environments, particularly those using queue adapters like Sidekiq or Resque.
Developers choose Job Iteration because it provides a robust, production-tested abstraction for interruptible jobs without requiring manual checkpoint logic, ensuring data consistency and resilience against infrastructure failures.
Makes your background jobs interruptible and resumable by design.
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Designed for cloud environments like Kubernetes and AWS, ensuring jobs survive pod evictions and instance restarts without data loss, as highlighted in the README's background on high availability.
Provides explicit helpers for iterating over ActiveRecord records, batches, arrays, CSV files, and nested structures, simplifying complex data processing flows with examples in the README.
Works with popular queue adapters like Sidekiq, Resque, and GoodJob out of the box, requiring minimal extra configuration for graceful interruption handling.
Developed and used at Shopify since 2017, indicating robustness in real-world, high-scale applications, as noted in the README's history.
Limited to Ruby on Rails applications using ActiveJob; the README states it's not compatible with vanilla Sidekiq API, restricting flexibility for other job frameworks.
Requires specific tuning for queue adapters, such as adjusting Sidekiq timeout to 25-30 seconds or Resque settings, adding setup complexity beyond standard ActiveJob.
Developers must understand Ruby Enumerators and use explicit helpers in build_enumerator, which the README admits replaced earlier automatic inference for clarity but adds initial complexity.