![]() ![]() ![]() "This past weekend helped us to forecast the capacity we expect this weekend, and we will be using that capacity to intentionally stress our systems in preparation for launch," Blizzard explained. In a post on, Blizzard said there will be "lengthy" queue times during the open beta, particularly on Friday and during peak regional windows. Last weekend's early access began with lengthy queue times that eventually cleared. if the job processor always crashes its Node process), jobs will be recovered from a stalled state a maximum of maxStalledCount times (default: 1).Watch on YouTube Here's Zoe revealing everything you need to know about the Diablo 4 season pass. Alternatively, you can pass a larger value for the lockDuration setting (with the tradeoff being that it will take longer to recognize a real stalled job).Īs such, you should always listen for the stalled event and log this to your error monitoring system, as this means your jobs are likely getting double-processed.Īs a safeguard so problematic jobs won't get restarted indefinitely (e.g. You can fix this by breaking your job processor into smaller parts so that no single part can block the Node event loop. Your job processor was too CPU-intensive and stalled the Node event loop, and as a result, Bull couldn't renew the job lock (see #488 for how we might better detect this).The Node process running your job processor unexpectedly terminates.The job will be considered stalled and is automatically restarted it will be double processed. ![]() If lockDuration elapses before the lock can be renewed, LockRenewTime (which is usually half lockDuration). Locking is implemented internally by creating a lock for lockDuration on interval It's important to understand how locking works to prevent your jobs from losing their lock - becoming stalled -Īnd being restarted as a result. When a worker is processing a job it will keep the job "locked" so other workers can't process it. This mostly happens when a worker fails to keep a lockįor a given job during the total duration of the processing. This means that in some situations, a jobĬould be processed more than once. The queue aims for an "at least once" working strategy. If you see anything that could use more docs, please submit a pull request! Patterns - a set of examples for common patterns.Reference - Reference document with all objects and methods available.Guide - Your starting point for developing with Bull.Since there are a few job queue solutions, here is a table comparing them: FeatureĬonst Queue = require ( 'bull' ) const videoQueue = new Queue ( 'video transcoding', 'redis://127.0.0.1:6379' ) const audioQueue = new Queue ( 'audio transcoding', įor the full documentation, check out the reference and common patterns: There are a few third-party UIs that you can use for monitoring: Job completion acknowledgement (you can use the message queue pattern in the meantime).Automatic recovery from process crashes.Threaded (sandboxed) processing functions.Schedule and repeat jobs according to a cron specification.Minimal CPU usage due to a polling-free design.Inspect jobs, search, retry, or promote delayed jobs.Get a complete overview of all your queues.Supercharge your queues with a professional front end: ![]() Use the promo code "BULLMQ" when signing up to help us Leaders in Redis hosting that works perfectly with Bull. If you need high quality production Redis instances for your Bull projects, please consider subscribing You can find tutorials and news in this blog: īull is popular among large and small organizations, like the following ones: You are still very welcome to use Bull if it suits your needs, which is a safe, battle tested library.įollow me on Twitter for other important news and updates. For new features check BullMQ, a modern rewritten The fastest, most reliable, Redis-based queue for Node.Ĭarefully written for rock solid stability and atomicity.īull is currently in maintainance mode, we are only fixing bugs. ![]()
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