Amazon Simple Queue Service (SQS) is a an AWS message queuing service that enables customers to decouple and scale microservices, distributed systems, and serverless applications. Amazon SQS offers common constructs such as dead-letter queues and cost allocation tags. AWS Lambda Function Dead Letter Queues. When all attempts to process an asynchronous invocation fail, Lambda can send the event to an Configure your function with a dead-letter queue to save these events for further processing. （中略）. To send events to a queue or topic, your function...
A dead-letter queue differs to the standard and FIFA queues as this dead-letter queue is not used as a source queue to hold messages submitted by producers. Instead, the dead-letter queue is used by the source queue to send messages that fail processing for one reason or another. def sqs_error_to_dead_letter_queue (queue_arn, event, error): client = aws_stack . connect_to_service ( 'sqs' ) queue_url = aws_stack . get_sqs_queue_url ( queue_arn )
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