The grafana-polystat-panel plugin was created to provide a way to roll up multiple metrics and implement flexible drilldowns to other dashboards. This example will focus on creating a panel for Cassandra using real data from Prometheus collected from our Kubernetes clusters. We’ll focus on the basic metrics for CPU/Memory/Disk coming from cAdvisor, but a well-instrumented service will have many metrics that indicate overall health, such as requests per second, error rates, and more.

In the Prometheus 2.7 release, Ganesh Vernekar added a feature called “Subqueries”. Ganesh published an explanation of how to use subqueries over on the Prometheus blog. In this post we’ll share a couple of real-life examples of how we use them at Grafana Labs.

This week we have updates and articles from the Grafana Labs team, some initial impressions on our Prometheus-inspired log aggregation project Loki, and lots more. Plus learn how to make your own air quality monitor.

Where we left off: AWS had taken the Elasticsearch software and launched their own cloud offering in 2015, and Elastic N.V. had doubled down on an “open core strategy.” Once AWS decides to offer a project like Elasticsearch, it immediately becomes a truly formidable competitor to anyone trying to do the same, even the company behind the software itself. AWS has huge scale, operational expertise, and various network effects that really compound.

Tinder is the world’s most popular dating app, with more than 26 million matches made each day. But two years ago, when it was time for the L.A.-based company to find and implement a perfect metrics monitoring partner, the process proved to be more slow-burn love affair versus whirlwind romance.

In this blog post we will go through how you can create plugins for Grafana using ReactJS. This presumes you have some basic knowledge about writing components in React.

Six months in the making, Write-Ahead Logging (WAL) for the remote_write API was one of the enhancements we included in the Prometheus 2.8 release on March 12. It’s a change intended to safeguard client metrics in the face of any network issues.

This week we have a number of articles from the Grafana Labs blog we’d like to share, plus a new panel plugin and other updates. Also, take a look at our upcoming events. If you’re going to be attending any of them, please come and say hello!

More than 1.55 million room nights are reserved on the Booking.com platform every day. It’s a staggering amount of traffic, and not surprisingly, the Amsterdam-based travel e-commerce company has a lot of knowledge to share about handling metrics at scale.