Getting down and dirty with metric-based alerting for AWS Lambda

Getting down and dirty with metric-based alerting for AWS Lambda

You'll want to have those metric based alerts implemented as soon as you start working with Lambda. Here's what you need to know.

The phrase “better safe than sorry” gets thrown around whenever people talk about monitoring or getting observability into your AWS resources but the truth is that you can’t sit around and wait until a problem arises, you need to proactively look for opportunities to improve your application in order to stay one step ahead of the competition. Setting up alerts that go off whenever a particular event happens is a great way to keep tabs on what’s going on behind the scenes of your serverless applications and this is exactly what I’d like to tackle in this article.

AWS Lambda Metrics

AWS Lambda is monitoring functions for you automatically, while it reports metrics through the Amazon CloudWatch. The metrics we speak of consist of total invocations, throttles, duration, error, DLQ errors, etc. You should consider CloudWatch as a metrics repository, being that metrics are the basic concept in CloudWatch and they represent a set of data points which are time-ordered. Metrics are defined by name, one or even more dimensions, as well as a namespace. Every data point has an optional unit of measure and a time stamp.

And while Cloudwatch is a good tool to get the metrics of your functions, Dashbird takes it up a notch by providing that missing link that you’d need in order to properly debug those pesky Lambda issues. It allows you to detect any kinds of failures within all programming languages supported by the platform. This includes crashes, configuration errors, timeouts, early exits, etc. Another quite valuable thing that Dashbird offers is Error Aggregation that allows you to see immediate metrics about errors, memory utilization, duration, invocations as well as code execution.

AWS Lambda metrics explained

Before we jump in I feel like we should discuss the metrics themselves to make sure we all understand and know what every term means or what they reffer too.

From there, we’ll take a peek at some of the namespace metrics inside the AWS Lambda, and we’ll explain how do they operate. For example

Invocations will calculate the number of times a function has been invoked in response to invocation API call or to an event which substitutes the RequestCount metric. All of this includes the successful and failed invocations, but it doesn’t include the throttled attempts. You should note that AWS Lambda will send mentioned metrics to CloudWatch only if their value is at the point of nonzero.

aws

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

Hire AWS Developer

Looking to Hire Professional AWS Developers? The technology inventions have demanded all businesses to use and manage cloud-based computing services and Amazon is dominating the cloud computing services provider in the world. **[Hire AWS...

AWS Cost Allocation Tags and Cost Reduction

Learn more about AWS Cost Allocation Tags, tag examples via the web, CLI, and node.js, explore tag compliance services, and review tagging strategies.

Hire Dedicated AWS Developer

Want to Hire AWS Developer for cloud computing services? At **[HourlyDeveloper.io](https://hourlydeveloper.io/ "HourlyDeveloper.io")**, we leverage maximum benefits from the AWS platform ensuring prominent Solutions for business requirements....

How AWS Skills Can Boost Your Career in The IT Industry?

India's best AWS Online Training & Certification Course By CETPA with Live Project & Avail 50% discount. Level up from creating cloud applications using AWS SDKs and to prepare for certification exams. Enroll Now!

How To Unite AWS KMS with Serverless Application Model (SAM)

AWS KMS is a Key Management Service that let you create Cryptographic keys that you can use to encrypt and decrypt data and also other keys. You can read more about it here.