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Amazon EC2 Cookbook by Aurobindo Sarkar, Sekhar Reddy

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Accessing AWS SQS from applications

SQS is a scalable, fast, and fully managed distributed queuing service from AWS. AWS SQS helps you build loosely coupled applications. This allows the application components to run independently with SQS managing the message flow between them. SQS can act as a buffer between the writers and the readers of the messages, and each queue can support multiple writers and readers.

Minimum SQS message size is 1 KB, maximum message size is 256 KB. Messages in SQS queues are stored for 4 days; however, you can increase the retention period from 1 minute to 14 days. You can create an unlimited number of queues, and a queue can contain unlimited number of messages.

AWS SQS supports long polling, so instead of querying SQS ...

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