I recently noticed the following message in Sentry’s pip installation step:

Using legacy ‘setup.py install’ for openapi-core, since package ‘wheel’ is not installed.

Upon some investigation, I noticed that the package wheel was not being installed. After making some changes, I can now guarantee that our development environment installs it by default and it’s given us about 40–50% speed gain.

The screenshot above shows the steps from two different Github workflows; it installs Sentry’s Python packages inside of a fresh virtualenv and the pip cache is available.

If you see a message saying that wheelpackage is not installed, make sure to attend to it!

Soon after Big Sur came out, I received my new work laptop. I decided to upgrade to it. Unfortunately, I quickly discovered that the Python set up needed for Sentry required some changes. …

I’m happy to announce that at the end of 2020 I joined Sentry.io as their second Developer Productivity engineer \o/

I’m excited to say that it’s been a great fit and that I can make use of most of the knowledge I’ve gained in the last few years. I like the ambition of the company and that they like to make work fun.

So far, I have been able to help to migrate to Python 3, enabled engineers to bootstrap their Python installation on Big Sur, migrated some CI from Travis to Github actions amongst many other projects.

If you ship software, I highly recommend you trying Sentry as part of your arsenal of tools to track errors and app performance. I used Sentry for many years at Mozilla and it was of great help!

If you are interested in joining Sentry please visit the careers page.

The summer of 2020 marked the end of 12 years of working for Mozilla. My career with Mozilla began with an internship during the summer of 2008 when I worked from Building K in 1981 Landings Drive, Mountain View, CA.

Writing this post is hard since Mozilla was such a…

If you use Treeherder on repositories that are not Try, you might have used the backfill action. The backfill action takes a selected task and schedules it nine pushes back from the selected task. You can see the original work here and the follow up here.

In the screenshot above…

In Filter Treeherder jobs by test or manifest path I describe the feature. In this post I will explain how it came about.

I want to highlight the process between a conversation and a deployed feature. Many times, it is an unseen part of the development process that can be…

At the beginning of this year we landed a new feature on Treeherder. This feature helps our users to filter jobs using test paths or manifest paths.

This feature is useful for developers and code sheriffs because it permits them to determine whether or not a test that fails in…

In the last few months I’ve worked with contributors who wanted to be selected to work on Treeherder during this year’s Google Summer of Code. The initial proposal was to improve various Treeherder developer ergonomics (read: make Treeherder development easier). …

For over a decade Mozilla has been using IRC to publicly chat with anyone interested to join the community. Recently, we’ve launched a replacement for it by creating a Mozilla community Matrix instance. I will be focusing on simply documenting what the process looks like to join in as a community member (without an LDAP account/Mozilla email address). For the background of the process you can read it here. Follow along the photos and what each caption says.

In June we discovered that Treeherder’s UI slowdowns were due to database slow downs (For full details you can read this post). After a couple of months of investigations, we did various changes to the RDS set up. The changes that made the most significant impact were doubling the DB…

Armen Zambrano

Follower of Christ writing developer tools, web fullstack & automation solutions.

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store