AWS Lambda is a serverless computing platform that lets users run code without provisioning or managing servers. With Lambda, users can run code for virtually any type of app or backend service—all with zero administration. It takes of requirements to run and scale code with high availability.
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Rackspace Fabric
Score 6.3 out of 10
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A solution to bring cloud security, billing, operations and management together. Rackspace Fabric offers a single platform for automated multicloud management. Service includes access to Rackspace cloud technology expertise, and provides a unified interface management for all cloud resources across Azure, AWS, GCP, and VMware, in a single, SaaS like operating environment.
Scenarios where AWS Lambda is well suited: 1. When we need to run a periodic task few times in a day or every hour, we may deploy it on AWS Lambda so it would not increase load on our server which is handling client requests and at the same time we don't have to pay for AWS Lambda when it is not running. So, overall we only pay for few function invocations. 2. When some compute intensive processing is to be done but the number of requests per unit of time fluctuates. For example, we had deployed an AWS Lambda for processing images into different sizes and storing them on AWS S3 once user uploads them. Now, this is something that may happen few times every hour on a particular day or may not happen even once on other days. To handle this kind of tasks AWS Lambda is a better choice as we don't have to pay for the idle time of the server and also we don't have to worry about scaling when the load is high. Scenarios where AWS Lambda is not appropriate to use: 1. When we expect a large request volume continuously on the server. 2. When we don't want latency even in case of concurrent requests.
I am highly likely to recommend Rackspace Cloud Monitoring to a colleague. This is assuming they have a decent background in working on cloud servers. If you don't mind digging in yourself to solve problems, then this is a great resource. If you are just learning how to set up servers on your own, then I recommend at least hiring someone to help you use the service. With that being said, Rackspace makes it easy for people you may hire to seamlessly work within your account. They get their own separate developer account.
Lambda provides multiple methods for triggering functions, this includes AWS resources and services and external triggers like APIs and CLI calls.
The compute provided my Lambda is largely hands off for operations teams. Once the function is deployed, the management overhead is minimal since there are no servers to maintain.
Lambda's pricing can be very cost effective given that users are only charged for the time the function runs and associated costs like network or storage if those are used. A function that executes quickly and is not called often can cost next to nothing.
Immediate email notifications: In case a service is down on our servers, we get immediate email notifications via rackspace cloud monitoring service. This helps us to know about the issues and we get in contact with support team to get it resolved.
Configuration on specific services: We can configure this monitoring on specific services. So for example if i don't want to get notified if MySQL concurrent users limit reached, then I do not need to configure this monitoring for MySQL. I can just use it whenever needed for defined services.
Group emails and technical contacts emails: The monitoring service can send email alerts to a number of email addresses. Primarily the ones who are added as a technical contact. It helps all people get notified about any issue.
Auto ticket management: Rackspace automatically creates a support ticket when a service is down and is notified by their monitoring service.
Putting a significant portion of your codebase into AWS Lambda and taking advantage of the high level of integration with other AWS services comes with the risk of vendor lock-in.
While the AWS Lambda environment is "not your problem," it's also not at your disposal to extend or modify, nor does it preserve state between function executions.
AWS Lambda functions are subject to strict time limitations, and will be aborted if they exceed five minutes of execution time. This can be a problem for some longer-running tasks that are otherwise well-suited to serverless delivery.
I give it a seven is usability because it's AWS. Their UI's are always clunkier than the competition and their documentation is rather cumbersome. There's SO MUCH to dig through and it's a gamble if you actually end up finding the corresponding info if it will actually help. Like I said before, going to google with a specific problem is likely a better route because AWS is quite ubiquitous and chances are you're not the first to encounter the problem. That being said, using SAM (Serverless application model) and it's SAM Local environment makes running local instances of your Lambdas in dev environments painless and quite fun. Using Nodejs + Lambda + SAM Local + VS Code debugger = AWESOME.
I have not needed support for AWS Lambda, since it is already using Python, which has resources all over the internet. AWS blog posts have information about how to install some libraries, which is necessary for some more complex operations, but this is available online and didn't require specific customer support for.
Azure Functions is another product that provides lambda functionality, but the documentation for some of Azure's products is quite hard to read. Additionally, AWS Lambda was one of the first cloud computing products on a large cloud service that implemented lambda functions, so they have had the most time to develop the product, increase the quality of service, and extend functionality to more languages. Amazon, by far, has the best service for Lambda that I know.
I also used Monitis as a monitoring service for our server. Rackspace'S monitoring sends immediate notifications while Monitis might take a couple minutes to understand if a service is down. Since Rackspace has their monitoring integrated with their support system, it helps us a lot and we don't need to call support all the time.
I was able to perform a lot of processing on data delivered from my website and little or no cost. This was a big plus to me.
Programming AWS Lambda is quite easy once you understand the time limits to the functions.
AWS Lambda has really good integration with the AWS S3 storage system. This a very good method of delivering data to be processed and a good place to pick it up after processing.
