Introduction To AWS Lambda Serverless Computing What is AWS Lambda? Discover how AWS Lambda removes the complexity of dealing with cloud based servers at all levels of technology stack, what its advantages are and where it can be effectively used.
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Cloud Servers – Are They Utilized Properly?
• Cloud eliminates the need to own hardware and maintain expensive server-based architectures • However, a need remains to scale applications and maintain their reliability at the time of deployment • As business evolve and more processes are required to automate operations, companies have to scale their cloud architecture • Additional resources are availed on existing servers, or a new set of servers have to be ordered
As per market findings, almost
• Efforts have to be made to maintain good access times during peak hours
remain underutilized in a
eighty-five per cent of servers typical cloud setup
Understanding Serverless Applications • No need to provision, deploy, update, monitor, or manage servers - All hardware and software is handled by cloud provider • The application can scale automatically when its use is triggered by end-user • In addition to scaling, all availability and fault tolerance aspects are embedded in the architecture • There’s no need to code, configure, or manage the server to avail these capabilities • There is no billing charge when the server remains idle
Serverless apps are architected in a manner such that developers can focus upon their core competency i.e. designing the core business logic
AWS Lambda – What It Does • It removes the complexity of dealing with cloud based servers at all levels of technology stack and offers a pay-per-request billing model where you don’t have to pay for idle computing time • It lets you run your code without provisioning or managing any other server • It executes the code only when needed • It can scale automatically to handle a few requests per day, and even support more than thousands of requests per second • You have to pay only for the server time you actually consume – there’s no billing if your code is not being executed by the service
AWS Lambda – No Provisioning Needed
• Lambda runs your code on a high-availability compute infrastructure • It performs administration of all resources availed, including server or operating system maintenance activities, capacity provisioning, automatic scaling, code monitoring and code logging • You only have to supply your code in any of the supported languages - Node.js, Java, C# and Python are supported now
AWS Lambda - Dual Economic Advantages
• Lambda never remains “cold” since there is no “idle server time” • Companies can benefit directly by reduced billing costs using the pay-as-you-go model • The service offers millisecond level billing granularity so no more rounding up of figures • It significantly reduces your cost of ownership
Fleet management activities, including security patching, code deployment and monitoring of servers are made redundant so you’re not required to maintain associated tools and processes, and upkeep other tech activities to support 24x7 uptimes
AWS Lambda - Applicability
Lambda’s serverless application model is generic and can be applied to almost any type of application - From a startup venture’s simple web application to a Fortune 100 company’s stock trade-analysis platform. • Web apps and websites • Mobile backends • Media and log processing • IT automation • IoT backends • Chatbots, voice-enabled assistants and other web hook based systems
AWS Lambda – Use Cases
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