SQS 所有消息进入死信队列

Question

我已经使用 terraform 配置了一个 SQS 队列和一个额外的死信队列。

resource "aws_sqs_queue" "sqs_deadletter" {
  name = "worker-dead-letter"
}

resource "aws_sqs_queue" "sqs" {
  name = "worker"
/* TODO: If I enable this all messages goes to the dead letter queue
  redrive_policy = jsonencode({
    deadLetterTargetArn = aws_sqs_queue.sqs_deadletter.arn
    maxReceiveCount = 4
  })
*/
}

resource "aws_lambda_event_source_mapping" "sqs" {
  event_source_arn = aws_sqs_queue.sqs.arn
  function_name = aws_lambda_function.worker.arn
  enabled = true
  batch_size = var.batch_size
}

我使用以下处理程序来处理我的消息。

@Introspected
class LegacyToModernRequestHandler : MicronautRequestHandler<SQSEvent, Unit>() {
    private val logger = KotlinLogging.logger {}

    override fun execute(input: SQSEvent) {
        input.records.forEach {
            handle(it)
        }
    }

    private fun handle(message: SQSMessage) {
        val key = message.body
        logger.info { "LegacyToModernRequestHandler($key)" }
    }
}

但我所有的消息都发送到 DLQ。如何指示成功处理，以免发生这种情况？

Answer 1

如果您未使用 AUTO_ACKNOWLEDGEMENT 模式，则必须明确确认消息才能成功处理。否则它将进入DLQ。您能说明一下您是如何配置 SQS 队列的吗？