AWS Lambda

Website

aws.amazon.com

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Categories

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

Amazon CloudWatch

Website

aws.amazon.com

$ Details

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Categories

#Monitoring Tools #Log Management #Performance Monitoring #Application Performance Monitoring

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.

Amazon CloudWatch features and specs

• Comprehensive Monitoring
  Amazon CloudWatch offers extensive monitoring capabilities for AWS resources, applications, and services, providing real-time insights into system performance and operational health.
• Scalability
  CloudWatch can handle monitoring data for resources at any scale, from small test environments to large-scale production deployments, easily scaling with your AWS infrastructure.
• Seamless AWS Integration
  As a native AWS service, CloudWatch integrates seamlessly with other AWS services like EC2, RDS, S3, and Lambda, simplifying the process of setting up and managing monitoring.
• Custom Metrics
  Users can publish their own custom metrics, allowing them to monitor specific data points relevant to their use case, in addition to the default metrics provided by AWS services.
• Automated Actions
  With CloudWatch Alarms, users can set predefined thresholds to trigger automated actions such as sending notifications, executing Lambda functions, or altering auto-scaling groups.

Possible disadvantages of Amazon CloudWatch

• Cost
  Depending on usage, monitoring a large number of resources or high-resolution custom metrics can become costly, potentially impacting overall cloud expenditure.
• Complexity
  Although CloudWatch is powerful, it can be complex to set up and manage, particularly for users not familiar with AWS terminology and monitoring concepts.
• Limited Third-Party Integration
  While CloudWatch integrates well with AWS services, integration with third-party tools is not as seamless. This might require additional configuration or third-party solutions for comprehensive monitoring.
• Lag in Metric Visibility
  There can be a slight delay in the visibility of data points, especially for high-resolution metrics, which may delay immediate troubleshooting and resolution.
• Basic Dashboarding
  The default dashboards provided by CloudWatch can be quite basic and may not meet the advanced visualization needs of some users, requiring additional tools for creating more sophisticated dashboards.

AWS Lambda Vs EC2 | Serverless Vs EC2 | EC2 Alternatives

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