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What Is AWS Lambda?
What Is AWS Lambda?

July 30, 2019

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AWS Lambda is a compute service that lets you run code without provisioning or managing servers. AWS Lambda executes your code only when needed and scales automatically, from a few requests per day to thousands per second. You pay only for the compute time you consume – there is no charge when your code is not running. With AWS Lambda, you can run code for virtually any type of application or back end service – all with zero administration. AWS Lambda runs your code on a high availability compute infrastructure and performs all of the administration of the compute resources, including server and operating system maintenance, capacity provisioning and automatic scaling, code monitoring and logging. For More Information on AWS Lambda Learn AWS Online Training.

You can use AWS Lambda to run your code in response to events, such as changes to data in an Amazon S3 bucket or an Amazon DynamoDB table; to run your code in response to HTTP requests using Amazon API Gateway; or invoke your code using API calls made using AWS SDKs. With these capabilities, you can use Lambda to easily build data processing triggers for AWS services like Amazon S3 and Amazon DynamoDB, process streaming data stored in Kinesis, or create your own back end that operates at AWS scale, performance, and security.

You can also build serverless applications composed of functions that are triggered by events and automatically deploy them using CodePipeline and AWS CodeBuild.

When Should I Use AWS Lambda?
AWS Lambda is an ideal compute platform for many application scenarios, provided that you can write your application code in languages supported by AWS Lambda, and run within the AWS Lambda standard runtime environment and resources provided by Lambda.

When using AWS Lambda, you are responsible only for your code. AWS Lambda manages the compute ?eet that o?ers a balance of memory, CPU, network, and other resources. This is in exchange for ?exibility, which means you cannot log in to compute instances, or customize the operating system or language runtime. These constraints enable AWS Lambda to perform operational and administrative activities on your behalf, including provisioning capacity, monitoring ?eet health, applying security patches, deploying your code, and monitoring and logging your Lambda functions.
If you need to manage your own compute resources, Amazon Web Services also o?ers other compute services to meet your needs.

  • Amazon Elastic Compute Cloud (Amazon EC2) service o?ers ?exibility and a wide range of EC2 instance types to choose from. It gives you the option to customize operating systems, network and security settings, and the entire software stack, but you are responsible for provisioning capacity, monitoring ?eet health and performance, and using Availability Zones for fault tolerance.
  • Elastic Beanstalk o?ers an easy-to-use service for deploying and scaling applications onto Amazon EC2 in which you retain ownership and full control over the underlying EC2 instances.

 


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