With AWS Lambda, you have basic observability built into the platform with CloudWatch. CloudWatch offers support for both metrics and logging. CloudWatch Metrics gives you basic metrics, visualization and alerting while CloudWatch Logs captures everything that is written to stdout and stderr. In this post, we will take a deep dive into CloudWatch Metrics to see how you can use it to monitor your Lambda functions and its limitations.
How many server types are out there? The answer to this question, like so many others, is: “It depends”. Since there can be as many types of server as a company needs, and companies have more IT needs every day, so… If we go to the definition of server we find that this is a computer that provides service to other computers that are part of a network.
(Field notes from O’Reilly’s Velocity 2019 Show, San Jose.) It was steamy hot in San Jose during O’Reilly’s Velocity show and the normally frigid AC temps in the expo hall were welcomed by all attendees, escaping the 104 degree temps. It got so bad, Charity Majors labeled it Satan Jose and the nearby Marriott hotel experienced a power outage for almost two full days, leaving guests hot under more than just their collars.
There is a lot of talk about graphing all the things, but have you ever considered graphing all the people – in particular their on calls – as well? “Not letting people burnout on call is something that is being talked about in the industry,” said Jordan J. Hamel, Design Engineer at the biotech company Amgen.
This post will describe how to manually build a Ubuntu 18.04 Virtual Machine (VM) server using Oracle’s VirtualBox virtualisation software. Being able to build simple, expendable VMs is extremely useful, whether you’re writing software, building websites or just wanting to learn about Linux servers. We need to be able to SSH onto the server from our host machine to make access easier. To gain SSH access we therefore need to forward SSH’s port to our host.
We currently have six major cloud platforms offering serverless products, AWS Lambda being the pioneer. Our goal is to provide a quick way to compare and evaluate all. For each service, we will be evaluating: There are smaller service providers on the market that are focused on serverless, but we won’t cover them in the present analysis. For the pricing comparison, we considered regions in the United States east coast. Let the battle begin!
Lambda Layers were introduced by AWS in late 2018 as a way to simplify the developer’s life when managing dependencies and shared resources across a multi-Lambda stack. It’s a versatile feature that brings many benefits, which we will discuss in this article. Using Lambda Layers does increase complexity to monitor and maintain your applications, but there’s no need to fear.
The following article is an excerpt from the book Achieving DevOps, a novel about delivering the best Agile, DevOps and Microservices, written by Dave Harrison and Knox Lively. This article is published with the author’s permission. A lateral line is how a fish monitors the surrounding water for changes in pressure, allowing it to understand the environment. This is how fish can survive in a very harsh, always-changing environment; without it, the fish is ‘blind’ and cannot survive.
In a Kubernetes cluster, the machines are divided into two main groups: worker nodes and master nodes. Worker nodes run your pods and the applications within them, whereas the master node runs the Kubernetes Control Plane, which is responsible for the management of the worker nodes. The Control Plane makes scheduling decisions, monitors the cluster, and implements changes to get the cluster to a desired state.
An API check is comprised of multiple HTTP/S checks configured for uptime monitoring. In API monitoring, tracking latency and availability provide first notice of a potential problem. The same extends to general uptime monitoring, where serving the best and fastest user experience is critical. Functionally, an API and HTTP/S check might do the job of monitoring API endpoints. Both can post or expect strings in response, and both provide alert of downtime.
