AWS Lambda

Website

aws.amazon.com

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Categories

#Cloud Computing #Cloud Hosting #Business & Commerce #Object Storage

Knative

Website

knative.dev

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Categories

#Cloud Computing #Development #Cloud Hosting #Developer Tools

AWS Lambda features and specs

• Scalability
  AWS Lambda automatically scales your application by running your code in response to each trigger. This means no manual intervention is required to handle varying levels of traffic.
• Cost-effectiveness
  You only pay for the compute time you consume. Billing is metered in increments of 100 milliseconds and you are not charged when your code is not running.
• Reduced Operations Overhead
  AWS Lambda abstracts the infrastructure management layer, so there is no need to manage or provision servers. This allows you to focus more on writing code for your applications.
• Flexibility
  Supports multiple programming languages such as Python, Node.js, Ruby, Java, Go, and .NET, which allows you to use the language you are most comfortable with.
• Integration with Other AWS Services
  Seamlessly integrates with many other AWS services such as S3, DynamoDB, RDS, SNS, and more, making it versatile and highly functional.
• Automatic Scaling and Load Balancing
  Handles thousands of concurrent requests without managing the scaling yourself, making it suitable for applications requiring high availability and reliability.

Possible disadvantages of AWS Lambda

• Cold Start Latency
  The first request to a Lambda function after it has been idle for a certain period can take longer to execute. This is referred to as a 'cold start' and can impact performance.
• Resource Limits
  Lambda has defined limits, such as a maximum execution timeout of 15 minutes, memory allocation ranging from 128 MB to 10,240 MB, and temporary storage up to 512 MB.
• Vendor Lock-in
  Using AWS Lambda ties you into the AWS ecosystem, making it difficult to migrate to another cloud provider or an on-premises solution without significant modifications to your application.
• Complexity of Debugging
  Debugging and monitoring distributed, serverless applications can be more complex compared to traditional applications due to the lack of direct access to the underlying infrastructure.
• Cold Start Issues with VPC
  When Lambda functions are configured to access resources within a Virtual Private Cloud (VPC), the cold start latency can be exacerbated due to additional VPC networking overhead.
• Limited Execution Control
  AWS Lambda is designed for stateless, short-running tasks and may not be suitable for long-running processes or tasks requiring complex orchestration.

Knative features and specs

• Serverless Capabilities
  Knative provides powerful serverless capabilities, allowing developers to deploy and manage applications without the need to manage infrastructure. This enables automatic scaling based on demand.
• Kubernetes Integration
  Because Knative is built on top of Kubernetes, it integrates seamlessly with existing Kubernetes clusters, leveraging Kubernetes features and security policies.
• Event-Driven Architecture
  Knative offers a robust event-driven architecture that enables applications to efficiently react to events, increasing responsiveness and reducing resource consumption.
• Flexibility
  Knative provides developers with flexibility to use any programming language, runtime, or framework, allowing diverse applications to be deployed and managed.
• Open Source Community
  Knative has a strong open-source community, offering extensive resources, continuous development, and a wealth of shared knowledge.

Possible disadvantages of Knative

• Complexity
  Deploying and managing Knative can introduce complexity, especially for teams unfamiliar with Kubernetes or serverless paradigms.
• Learning Curve
  There is a significant learning curve associated with Knative, which can be daunting for new users or teams without Kubernetes experience.
• Resource Intensive
  Running Knative on Kubernetes requires considerable resources, which might not be cost-effective for small-scale applications or organizations.
• Maturity
  As a relatively new technology, Knative may encounter issues related to maturity, stability, and support compared to more established platforms.
• Limited Ecosystem
  Although growing, Knative's ecosystem is still limited compared to other serverless solutions, which might restrict available plugins and integrations.

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