NextRoll

We recently decided to sponsor the Erlang Ecosystem Foundation. Learn more about it, the reasons behind our sponsorship, and the other ways in which we’re contributing with it.

In celebration of International Women’s Day 2019 and National Women’s History Month, we’re continuing our tradition of highlighting Tech Women at AdRoll Group.

Dialyzer is a great tool to validate Erlang code, but it might slow down your development process if devs are applying it to huge codebases constantly. That’s why we added it to our CI pipelines instead. In the process we learned a few things that might be useful for you as well.

Grace Hopper is happening on October 2-4 2019 and the Call for Participation, Abi Award nominations, and Scolarship applications are now open! Here is why we love Grace Hopper.

DynamoDB is a very powerful tool to scale your application fast. The Autoscaling feature lets you forget about managing your capacity, to an extent. By replacing this algorithm with our own, we were able to reduce costs significantly.

This post examines how our clearing prices compare to our bid prices in what are supposed to be second-price auctions. We observe some irregular patterns that lead us to question whether these auctions really are second-price, and explain our algorithmic defense against misspecified auction mechanisms.

We reduced by over 60% the EC2 instance cost of our 1000+ node globally-distributed log-producing application by migrating it entirely to EC2 Spot Fleet. We discuss some of the issues we faced and also present the log data recovery mechanism which helped enable this migration.

Dead code (as in functions that are not used anywhere) tends to pile up in big projects if you leave them unattended. Using one of Xref’s most underrated features, you will be able to detect and remove what you do not need anymore.

The attribution team at AdRoll computes metrics out of petabytes of data every night. This is accomplished using a batch processing pipeline that submits jobs to AWS Batch. In this blog post we discuss how this is organized and orchestrated with Luigi. We also announce Batchiepatchie, a job monitoring tool for AWS Batch.

SF Python has brought its Project Night to AdRoll. Here is what happened…