Operations | Monitoring | ITSM | DevOps | Cloud

Learn how to monitor an API by doing an HTTP POST request to it every minute and instantly be notified when it goes down. It all takes under 10 minutes so let’s dive in, head first.

When it comes to troubleshooting application performance, the more information you have the better. Logs combined with metrics and traces give you full visibility into your Java applications. Logging in your Java applications can be achieved in multiple ways – for example, you can just write data to a file, but there are far better ways on how to do that, as we explained in our Java logging tutorial.

Getting started with PromQL can be challenging when you first arrive in the fascinating world of Prometheus. Since Prometheus stores data in a time-series data model, queries in a Prometheus server are radically different from good old SQL. Understanding how data is managed in Prometheus is key to learning how to write good, performant PromQL queries. This article will introduce you to the PromQL basics and provide a cheat sheet you can download to dig deeper into Prometheus and PromQL.

I imagine everyone is long since tired and bored with their Loki 2.1 end of year/holiday gift, so I’m here today to bring some really exciting news. Loki 2.2 is released!!! New to Loki? Want a refresher? Owen Diehl and I did a webinar not long ago. Check out the on-demand video for a good overview of what Loki is capable of in 2021! Lots of new features are in this release, but worth celebrating in particular is that the single most requested feature for Loki has been added!

March Mobile Madness continues with Performance support for React Native. Our friend, Jenn Meung shares how Performance supports his mobile appliction. In addition to working with Sentry, I also contribute to Tour, a travel app which helps people plan trips with a drag-and-drop interface. Because Tour is built with React Native, we’ve always had issues accurately gauging how people use our app and its performance.