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Amazon SQS to Lambda: Tips
• For low-concurrency, high-duration functions, set visibility timeout to
6x function duration. This will avoid receiveCount retries and DLQ.
• Check that visibility timeout is always greater than function duration to
avoid duplicate invokes
• Even a fraction of errors will induce backpressure and interfere with
ramping up to full concurrency
• The number of invocations does not equal throughput. Maximum
batching is not guaranteed.
