Posts tagged "elixir"

Tracing and observing your remote node

Today we will continue exploring techniques for debugging and tracing Elixir code that are so important for running and understanding production systems. In the past, we have discussed: how to debug your application how to trace systems with Erlyberly how to use the observer to introspect applications. The examples above always connected to systems running … »

Ecto’s insert_all and schemaless queries

One of the functions added to Ecto 2.0 is Ecto.Repo.insert_all/3. insert_all allows developers to insert multiple entries at once into a repository: MyApp.Repo.insert_all(Post, [[title: “hello”, body: “world”], [title: “another”, body: “post”]]) Although insert_all is just a regular Elixir function, it plays an important role in Ecto 2.0 goals. To understand more about these goals, let’s … »

Running migration in an Exrm release

Exrm is a great tool for building releases for Elixir applications so you can deploy them on the web and even in an embedded hardware. We have been using Exrm here at Plataformatec. It is the chosen tool for deploying our projects and the contributors are doing a great job maintaining and developing new features. … »

Ecto 2.0.0-rc is out!

We are really glad to announce the release candidate for Ecto 2.0 has been released. The upcoming Ecto version packs many goodies: We have migrated to DBConnection, which considerably improves the performance of how Ecto manages connections to the database as a whole. Improved pool management, faster encoding/decoding, support for prepared queries and more; The … »

How to trace Elixir nodes with Erlyberly

At Plataformatec, we are always learning new techniques to help our clients introspect and monitor their production systems. Last week, we saw debugging techniques in Elixir and now we will see one of many ways to do tracing in Elixir. For this post, we will use erlyberly. You can see the installation instructions in its … »

Debugging techniques in Elixir

It’s common that our first experience with debugging in a new language is by printing values to the terminal. Elixir isn’t different: we can use IO.puts/2 and IO.inspect/2. However, Elixir also provides other approaches to debugging. In this blog post, we’ll show you other 2 options: IEx.pry/0 and :debugger. IEx.pry The name “pry” is an … »