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AppSignal helps teams build better applications. We track errors and performance, monitor hosts and offer a metrics platform. Our blog features news, product updates and articles from our team. If you are interested in contributing to our blog or have an article idea, send us a message!

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Inspecting data in Ruby

By Jeff Kreeftmeijer on

Most exceptions are caused by unexpected data being passed to methods that work fine otherwise, so it's often useful to trace a piece of data through your application to find the cause of an error.

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Syntactic sugar methods
in Ruby

By Tom de Bruijn on

Ever hear about Ruby's syntactic sugar, but never knew what it meant or how to use it? In this article we'll explore just how we can use it to our advantage.

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Comparing host metrics

By Tom de Bruijn on

Today we've launched the ability to compare hosts with one another. This makes it possible to spot badly performing hosts right from one page.

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Ruby gem 2.5 - JRuby support!

By Tom de Bruijn on

We've released a new gem version that supports JRuby!

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Debugging exceptions in Rails

By Jeff Kreeftmeijer on

Rails' logs provide a great way to debug issues. Although the raised exceptions don't always make a lot of sense on first glance, carefully retracting the steps the code took to get to the issue is a great way to find out the source of errors in your app.

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Improved host metrics and alerts

By Thijs Cadier on

We just launched a much improved way of keeping track of your hosts.

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Reading and understanding Ruby stack traces

By Jeff Kreeftmeijer on

The stack trace gives you a dump of the current state of your call stack whenever an exception is raised, and is helpful in finding out where things went wrong.

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Track cache hits
with custom metrics

By Robert Beekman on

Track how well your caching is optimized by using custom metrics.

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Elixir integration 1.4 released

By Tom de Bruijn on

We've released a new Elixir package version with support for FreeBSD and a fix for the DNS timeouts issue.

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Ruby gem 2.4 -
FreeBSD support and more exceptions!"

By Tom de Bruijn on

We've released a new gem version that supports FreeBSD and captures more exceptions!

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Koos: keeping others off support

By Jeff Kreeftmeijer on

In order to tackle the battle between productivity and providing service to our customers, we invented "Koos": our weekly support rotation.

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Better, more and more specific notification options

By Thijs Cadier on

Today we’re launching the ability to have multiple notifiers, and to have alerts for triggered anomalies sent to all notifiers.

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