SQS Visibility Timeout
With SQS's visibility timeout, you can set a timeout for a message. In this period of time, a message is invisible to other consumers. If the message is not deleted within the timeout, it will be visible again. A visibility timeout that is too short can cause messages to be processed multiple times. A too long timeout can cause messages to be stuck in the queue for a long time.
SQS on One Page (No Fluff)
Queue like a pro. Our SQS cheat sheet covers queue types, message handling, and dead-letter queues - the messaging fundamentals.
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