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The Ruby and Rails community linklog

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🚀 Designing Safe Parallelism in Rails

by Giménez Silva Germán Alberto —

https://rubystacknews.com/2026/02/12/designing-safe-parallelism-in-rails/

At Kaigi on Rails 2025, 片田 恭平 (@katakyo) delivered an outstanding talk on a topic every production Rails team eventually faces: Connection Pool Exhaustion under Parallel Execution.

When we introduce:

• Sidekiq concurrency • Parallel batch processing • AI / LLM workflows • ECS horizontal scaling

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