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oban v0.7.1 Release Notes

Release Date: 2019-08-15 // over 4 years ago

  • 🛠 Fixed

    • 🚀 [Oban.Query] Release advisory locks in batches rather than individually after a job finishes execution. By tracking unlockable jobs and repeatedly attempting to unlock them for each connection we ensure that eventually all advisory locks are released.

    The previous unlocking system leaked advisory locks at a rate proportional to the number of connections in the db pool. The more connections, the more locks that wouldn't release. With a default value of 64 for max_locks_per_transaction the database would raise "ERROR: 53200: out of shared memory" after it hit a threshold (11,937 exactly, in my testing).

    • 👷 [Oban.Worker] Allow max_attempts to be 1 or more. This used to be possible and was broken unintentionally by compile time validations.