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WebJobs, Azure Functions, queues, workers, retries, poison messages, and background workload ownership.
Practice items tagged with Azure Background Processing.
Diagnose a growing queue backlog in an Azure-based background processing system.
Traces duplicate side effects across message delivery, lock ownership, settlement, durable job state, and external idempotency, then repairs affected users safely.
Diagnose missing trace continuity when an API enqueues work processed by an Azure worker.
Investigate messages that repeatedly fail and move to a poison queue or dead-letter queue.
Covers queue-backed work, idempotency, retries, visibility timeout, poison messages, progress tracking, and choosing Storage Queues or Service Bus.
Compares App Service WebJobs and Azure Functions for queue processing, scheduled tasks, scaling, deployment ownership, and operational isolation.