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Amazon SQS (Simple Queue Service)

  • One of AWS oldest services
  • Fully managed message queuing service (Application Decoupling)
  • Unlimited throughput, unlimited number of messages in the queue
  • Low latency (< 10ms on publish & receive)
  • Limitation of 256KB per message


Default message retention period is 4 days, max is 14 days

  • Can have duplicate messages (at-least-once delivery)
  • Can have out-of-order messages (best effort ordering)