Three Laravel Queue Pitfalls Every Developer Should Know About

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A developer has documented three common but costly mistakes when working with Laravel queues, drawn from real debugging experiences. The first involves misunderstanding retryUntil(), which calculates its expiration timestamp at the moment a job is dispatched rather than when it begins processing, causing delayed jobs to expire before they ever run. The second concerns Laravel Horizon's default retry behavior, where omitting the 'tries' configuration results in unlimited retries rather than the expected single attempt. The third pitfall affects jobs using ShouldBeUniqueUntilProcessing, where a job that expires before processing begins can leave its unique lock permanently in place, silently blocking all future dispatches of that job. The post serves as a practical reminder to explicitly configure retry limits and carefully consider timing assumptions when designing queued jobs.

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