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Sep 21, 2021   |  By Luismi Ramírez
In this post, we’ll show you what atoms are in Elixir, why you should monitor them, and how to do so with AppSignal. Let’s prevent your app from crashing with a pop up of an error such as.
Sep 15, 2021   |  By Thijs Cadier, Milica Maksimović
If your application runs in a virtualized environment, there is a crucial metric you might not be aware of: CPU steal. In this post, we’ll explain what CPU steal is, how to monitor it, and what happens to your app when CPU steal is high.
Sep 15, 2021   |  By Wanyoike Michael
In this article, you’ll learn how to capture error logs in your Cloudflare Workers application using AppSignal. We’ll build a simple workers project and integrate AppSignal’s code to collect the necessary metrics. We’ll also learn how to utilize AppSignal’s dashboard to analyze and track errors. Let’s get stuck in!
Sep 8, 2021   |  By Robert Beekman
Since the launch of uptime monitoring, we have received a lot of positive feedback. There were also a couple of much-requested additional features that we hope to address in this huge update.
Sep 1, 2021   |  By Ayo Isaiah
Good logging practices are crucial for monitoring and troubleshooting your Node.js servers. They help you track errors in the application, discover performance optimization opportunities, and carry out different kinds of analysis on the system (such as in the case of outages or security issues) to make critical product decisions. Even though logging is an essential aspect of building robust web applications, it’s often ignored or glossed over in discussions about development best practices.
Aug 9, 2021   |  By Wes Oudshoorn
Today, we’re launching a major upgrade that will improve the way yourteam manages application errors, with more error states, error assignments,severity labels and a “my incidents” overview. Your team’s communication around incidents will improve significantly.You’ll know exactly how severe an error is, who’s responsible, and howyou handled this error historically.
Aug 2, 2021   |  By Thijs Cadier
We’re launching a new line-of-code based method of grouping errors. Ifyou enable this grouping method in “App settings”, we will find the lineof code that was the source of the error and use that to split out errorsthat otherwise have the same type. To access the feature, upgrade to the latest AppSignal APM for Node.js integration. This is especially useful for Node.js andElixir parts because in these languages different errors often have the same type.
Jun 30, 2021   |  By Stefan Verkerk
It’s important to be able to look at the entirety of your application architecture, not just specific aspects of it, and understand how different parts connect. Observability comes first, followed by monitoring. In this post, we’ll dive into the database part of your architecture to show how you can monitor and optimize your database performance.
Jun 23, 2021   |  By Julik Tarkhanov
When we were moving an app to Kubernetes, we encountered a peculiar situation where other services running on Kubernetes started throwing a ThreadError from time to time, saying that a resource is unavailable. We started investigating, and it turned out that you want to know where your AppSignal error has occurred. A short reminder - Kubernetes works on two levels: So, you want to know which pod and which node ran a particular AppSignal transaction.
Jun 16, 2021   |  By Stefan Verkerk
Even if you write the fastest code in the world, you can still be slowed down by external factors. In this post, we will deal with performance monitoring external APIs and how you can prevent these slow APIs from slowing you down.

Made for teams that want to build high quality Ruby and Elixir applications, AppSignal offers amazing insights into errors and performance issues, plus host monitoring and an easy to use custom metrics platform.

AppSignal supports the Elixir language with an Elixir package. The package supports pure Elixir applications and frameworks including Phoenix, Plug & Erlang.

AppSignal supports the Ruby language with a Ruby gem. The gem supports many frameworks and gems including Capistrano, DataMapper, Delayed Job, Grape, MongoDB, Padrino, Rack, Rake, Resque, Ruby on Rails, Sequel, Shoryuken, Sidekiq, Sinatra & Webmachine.

AppSignal now supports Node.js! The package supports pure JavaScript applications and TypeScript applications, and can auto-instrument various frameworks and packages with optional plugins.

AppSignal also has amazing support for catching errors from Front-end JavaScript applications and sending them to AppSignal, including the React, Vue, Angular, Ember, Preact & Stimulus frameworks.

Packed with features:

  • Alerts in your tools: AppSignal integrates with Slack, Flowdock, HipChat, OpsGenie and more.
  • Control your notifications: AppSignal notifies you exactly when you want to. Get the first exceptions per deploy, all of them of never. Set thresholds for performance notifications.
  • Amazing support: We don't do "first line" and "second line" support: you get to speak with a developer, immediately.
  • Send to issue trackers: A single click creates an issue with all the necessary details in your issue tracker of choice.
  • Manage teams and users: Add users to teams and give them access to specific or all, existing and/or new applications you monitor.
  • Focus on design: Developer tools do not need to be complicated and ugly. Our interface is kept clean and easy to use.

Catch errors, track performance, monitor hosts, detect anomalies — all in one tool.