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[ARTICLE · art-166276] src=freek.dev ↗ pub= topic=developer-tools verified=true sentiment=· neutral

Laravel Deadlocks: Queue Jobs That Already Ran End Up in failed_jobs

Laravel queue workers on MySQL versions below 8.0.1 — or on servers where Laravel misreads the database version — reserve jobs using a plain FOR UPDATE lock and can deadlock on the DELETE, leaving jobs that already ran in the failed_jobs table. A single tinker line reveals which locking mechanism a given installation uses. The finding matters for developers running Laravel queues on older MySQL, who can check their lock type before deadlocks cause duplicate job failures.

by read1 min views3 publishedOct 26, 2026
Laravel Deadlocks: Queue Jobs That Already Ran End Up in failed_jobs
Image: Freek (auto-discovered)

Below MySQL 8.0.1, or on a server Laravel misreads, workers reserve jobs with a plain FOR UPDATE and can deadlock on the DELETE. One tinker line shows which lock yours use.

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source & further reading
freek.dev — original article ★ Typed routes from Laravel to React with Wayfinder ★ Laravel AI SDK in practice: the agent behind There There ★ Keeping Laravel and TypeScript in sync with data objects
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