Amazon Web Services Lambda

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docs.aws.amazon.com

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#Development #Cloud Computing #VPS #Cloud Infrastructure

AWS Lambda

Website

aws.amazon.com

$ Details

Categories

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

Amazon Web Services Lambda features and specs

• Scalability
  AWS Lambda automatically scales your application by running your code in response to each trigger, handling scaling from a few requests per day to thousands per second.
• Cost Efficiency
  Lambda charges you only for the compute time you consume, without the need to pay for idle server time, which helps optimize cost efficiency.
• No Server Management
  You don't have to manage any servers or infrastructure, allowing you to focus on writing code and developing functionality rather than maintaining hardware.
• Event-driven Model
  Lambda integrates seamlessly with other AWS services and can be triggered using AWS events, making it highly suitable for building event-driven and serverless architectures.
• Flexible Scaling and Processing
  AWS Lambda provides flexibility in resource allocation, allowing you to adjust memory and execution timings to optimize performance for different workloads.

Possible disadvantages of Amazon Web Services Lambda

• Cold Start Latency
  The first invocation of a Lambda function can experience a delay known as 'cold start,' which can affect applications sensitive to latency.
• Execution Timeout
  Lambda functions have a maximum execution timeout of 15 minutes, which may not be suitable for long-running processes or tasks.
• Resource Limitations
  Lambda has limitations on memory, disk space, and other resources, which can restrict the functions it can perform depending on application requirements.
• Vendor Lock-In
  Using AWS Lambda heavily can lead to vendor lock-in, making it challenging to migrate to different platforms without significant re-architecting.
• Complexity in Large Systems
  For large systems with numerous functions and dependencies, managing and orchestrating Lambda functions can become complex and challenging.

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.

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