Systems | Development | Analytics | API | Testing

What Is NullReferenceException? Object reference not set to an instance of an object

“Object Reference Not Set to an instance of an object.” Cast the first stone those who never struggled with this error message when they were a beginner C#/.NET programmer. This infamous and dreaded error message happens when you get a NullReferenceException. This exception is thrown when you try to access a member—for instance, a method or a property—on a variable that currently holds a null reference. But what is a null reference?

Going Beyond Observability for Spark Applications & Databricks Environments

Join Chris Santiago, Solutions Engineer Director at Unravel Data, as he takes you through Unravel’s approach to getting better and finer grain visibility with Spark applications and how to tune and optimize them for resource efficiency. An overview of out of the box tools like Ganglia and their overall lack of visibility on Databricks jobs How Unravel helps you gain finer grain visibility, observability, monitoring into Spark data pipelines How Unravel can recommend better configurations and tuning of Spark applications.

Announcing Insomnia 2021.1

TL;DR Insomnia Designer and Insomnia Core are now Insomnia. Insomnia Designer users will have to migrate to the new Insomnia application and Designer will no longer receive updates. When we originally built Insomnia Designer, we didn’t want to make large changes to Insomnia without understanding whether the changes would be useful to developers, with the release of Insomnia Designer we were praised for not making these changes directly inside of Insomnia at first.

How to Monitor API Usage and Performance with Tyk API Gateway on EC2 with Moesif

This article provides an introduction to API Observability and how it fits within the overall APIOps Cycles. Then, we will walk through an example of how to successfully deploy and leverage Tyk Gateway and Moesif API Observability on Amazon EC2.