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The latest News and Information on Monitoring for Websites, Applications, APIs, Infrastructure, and other technologies.

Caching Database Queries in SQLAlchemy - Part 1/2

The database is one of the most critical components here at Rollbar and its performance ripples across most of our SLOs. One of our goals last months has been to remove unnecessary or repetitive load from it as much as possible. Caching queries is the 101 solution whenever you need to keep scaling up while maintaining, or even reducing, database costs (very relevant these days). Here’s an example of how just one query has been drastically reduced thanks to caching.

Trace-based testing with Elastic APM and Tracetest

This post was originally published on the Tracetest blog. Want to run trace-based tests with Elastic APM? Today is your lucky day. We're happy to announce that Tracetest now integrates with Elastic Observability APM. Check out this hands-on example of how Tracetest works with Elastic Observability APM and OpenTelemetry! Tracetest is a CNCF project aiming to provide a solution for deep integration and system testing by leveraging the rich data in distributed system traces.

What is the ImagePullBackoff error in Kubernetes and how to fix it?

Like CrashLoopBackoff, the ImagePullBackoff is not an error but a waiting status you might see in your kubernetes pods, with the backoff time increasing after every retry. The error itself is "ErrImagePull", and it happens when there are issues when pulling the container image to the kubernetes node. So how do you solve these pull errors? Take a look at our video to get some ideas on how to resolve the various issues!

The Best OpenSearch Dashboard Examples

OpenSearch dashboards are a powerful tool for visualising and exploring data stored in an OpenSearch-compatible data store such as Elasticsearch. With OpenSearch's intuitive interface and advanced analytical tools, this visualisation tool makes it easy to gain insights into your data and monitor and alert upon key metrics. Throughout this article, we'll look at some of the most impressive OpenSearch dashboard examples that showcase it’s capabilities and versatility.