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AWS Lambda is an event-driven, serverless Function as a Service (FaaS) provided by Amazon as a part of Amazon Web Services. It is designed to enable developers to run code without provisioning or managing servers. It executes code in response to events and automatically manages the computing resources required by that code. It was introduced on ...
The AWS Cloud Development Kit (AWS CDK) introduced support for AWS App Runner in August 2021, enabling developers to define and deploy App Runner services using the AWS CDK. [5] This streamlines the application development and deployment process by automating the creation of App Runner services, managing them through Infrastructure as Code (IaC ...
Event-driven architecture (EDA) is a software architecture paradigm concerning the production and detection of events. Event-driven architectures are evolutionary in nature and provide a high degree of fault tolerance, performance, and scalability. However, they are complex and inherently challenging to test. EDAs are good for complex and ...
The AWS CDK aims to improve the experience of working with Infrastructure as Code by providing higher-level, reusable constructs that enable developers to create and manage AWS resources more efficiently and with less boilerplate code compared to traditional configuration files like AWS CloudFormation templates.
The pattern's key component is an event loop, running in a single thread or process, which demultiplexes incoming requests and dispatches them to the correct request handler. [ 1 ] By relying on event-based mechanisms rather than blocking I/O or multi-threading, a reactor can handle many concurrent I/O bound requests with minimal delay. [ 2 ]
In addition to writing the event handlers, event handlers also need to be bound to events so that the correct function is called when the event takes place. For UI events, many IDEs combine the two steps: double-click on a button, and the editor creates an (empty) event handler associated with the user clicking the button and opens a text ...
In modern cloud architectures like AWS, effective connection pooling management is critical for optimizing performance, scalability, and resource utilization. Improper handling of connections can lead to bottlenecks and operational inefficiencies. Connection pooling behavior varies across compute platforms: [8] [9] [10]
The service shifts traffic between the old (blue) environment and the new (green) environment, minimizing downtime and ensuring a smooth transition. AWS CodeDeploy also allows the use of lifecycle event hooks, enabling developers to run tests and verification steps before routing traffic to the green environment. [7]