Last night, we had an incident in our data-processing pipeline that resulted in some data loss. At around 11:30 PM Pacific Time, an on-call engineering was paged due to a server becoming unresponsive and unreachable. While quite rare, our infrastructure is robust enough to tolerate some servers going down…
This breathtaking docuseries combines rare action, unimaginable scale, impossible locations and intimate moments captured from the deepest depths of Rails internals. This year, we'll travel across the great text/plain, taking in the spectacular Action View as we find our way back to the browser.…
Skylight 4.2.0 now supports GraphQL instrumentation! To use it, upgrade the Skylight gem and add `'graphql'` to your probes list. We support `graphql-ruby` versions >= `1.7`.…
Skylight is a smart profiler for Ruby and Rails applications. In this post, we use Skylight to improve performance for the Skylight app. So meta!…
Skylight’s new Background Jobs feature helps you discover and correct hidden performance issues in your Sidekiq, Delayed::Job, and ActiveJob queues. Now available with the 4.0 Skylight agent.…
This post is a write-up of the talk we gave at RailsConf 2019. You can find the slides here. Most Rails developers should be pretty familiar with this work flow: open up a controller file in your editor, write some Ruby code inside an action method, visit that URL from…
For the last couple of months, we have been investing in improving our operations and infrastructure here at Skylight. As our efforts begin to bear fruit, we have had a pretty good run without major incidents – until last week where we were hit by one of the biggest outages in…
Skylight’s latest update to Trends allows users to easily view & navigate through their historical trends data from within the Skylight UI. Seasoned Skylight users know that there is something special about opening up your email inbox on Monday mornings: why, getting to read your Skylight trends report, of…
Skylight’s new Environments feature allows users to easily enable Skylight’s smart performance profiling in multiple environments and effortlessly navigate between an app’s environments in the Skylight UI. Now available with the 3.0.0 agent. By default, the Skylight agent only enables itself in the production environment.…
This post is the last in an ongoing three-part series, and is a write-up of the talk we gave at RailsConf 2018. You can find the slides here, or read Part I and Part II of the series to catch up. In Part II of the Skylight for Open Source…
