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The Skyline blog.

What we've learned running Laravel queues in production — concurrency, Horizon, Redis, and the operational edges that only surface under real traffic.

Jun 12, 2026 · 12 min read

Laravel Job Uniqueness Controls: What Breaks Under Real Traffic

Laravel's queue abstractions make concurrency feel deceptively simple: mark a job ShouldBeUnique, add a middleware, watch Horizon, and move on. In production, the edge cases are where the real work is. ShouldBeUnique and WithoutOverlapping solve different problems and fail in dif...