![]() Lambda can search in the logs looking for specific events or log entries as they occur and send out notifications viaSNS. You can easily build a Lambda function to check log files from Cloudtrail or Cloudwatch. Lambda can handle the application logic, and persist data to a fully managed database service (RDS for relational, or DynamoDB for non relational database). The web frontend can send requests to Lambda functions via API Gateway HTTPS endpoints. Consider hosting the web frontend on S3, and accelerating content delivery with Cloudfrontcaching. This is one of the killer use cases to take advantage of the pricing model of Lambda, and S3 hosted static websites. There are additional open source frameworks for more supported languages, rapid development and deployments, like Serverless (formerly knows as JAWS). Lambda comes with native support for a number of programming languages: Java, NodeJS and Python. SQLECTRON AWS CODEDownscaling is handled simply by automatically terminating the Lambda function execution when do code finishes running. Lambda can instantly scale up to a large number of parallel executions, for which the limit is controlled by the Number of concurrent requests. This is a huge leap comparing to the hourly based billing of EC2. Lambda billing is based on used memory, number of requests and execution duration rounded up to the nearest 100 milliseconds. Lambda has “pay as you go (PAYG)” pricing model with a generous free tier, and it is one of the most appealing for cost savings. The service performs all the operational and administrative activities on your behalf, including capacity provisioning, monitoring fleet health, applying security patches to the underlying compute resources, deploying your code, running a web service front end, and monitoring and logging your code. One of the reasons behind its popularity is the flexibility it comes for developers and cloud architects. AWS Lambda can be used in a number of different scenarios, it is easy to get started with, and can run with minimal operating costs. ![]()
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