sqs

27 Sep

Amazon Simple Queue Service (SQS)

stp2y0 CommentsNewsaws, backend, coding, community, development, engineering, inclusive, software, sqs, webdev

Amazon Simple Queue Service (SQS) is a fully managed messaging service offered by AWS (Amazon Web Services). It enables applications to communicate asynchronously by sending and receiving messages through queues. SQS is particularly useful for decoupling components of a distributed system, thereby improving the scalability and resiliency of the application. Key Features: 1. Standard Queues: Provides at-least-once delivery with no strict ordering guarantees.2. FIFO (First-In-First-Out) Queues: Ensures messages are delivered in the exact order they were sent, eliminating duplicates.3. Automated Management: SQS handles infrastructure, scaling, and redundancy, ensuring high availability.4. Durability and Security: Messages are stored securely with encryption at…

22 Jul

Preventing Multiple Processing of SQS Messages

stp2y0 CommentsNewsaws, coding, community, development, engineering, inclusive, java, lambda, software, sqs

Introduction Amazon SQS (Simple Queue Service) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. AWS Lambda can process messages from an SQS queue, making it a powerful combination for event-driven applications. Scenario Imagine an AWS architecure like this: Imagine a scenario where your Lambda function fails to tag an SQS message as successfully processed. By default, Lambda retries the message up to 4 times before ignoring it. This retry behavior can lead to exponential execution of your handler: First Lambda: Retries 4 times, potentially sending 4 messages to…