Square Case Study

Since 2009, Square has enabled quick and easy credit card payments to small businesses. Four years ago, the company branched out into peer-to-peer transactions via its Cash App. After some steady growth, the app rocketed in popularity in 2016, reaching millions of users over just a few months and landing at the top of the […]

Aria Presto: Making table scan more efficient

The Aria is a set of initiatives to dramatically increase PrestoDB efficiency. Our goal is to achieve a 2-3x decrease in CPU time for Hive queries against tables stored in ORC format. For Aria, We are pursuing improvements in three areas: table scan, repartitioning (exchange, shuffle), and hash join. Nearly 60 percent of our global […]

Building Lyft’s Marketing Automation Platform

We take pride in our mission to improve people’s lives with the world’s best transportation. More than 50 million carbon neutral Lyft rides happen every month across the US and Canada—and we’ve barely scratched the surface in the potential for rideshare. Part of our growth is improvements in our acquisition process—like launching region-specific ad campaigns […]

Secure Control of Egress Traffic in Istio, part 1

This is part 1 in a new series about secure control of egress traffic in Istio that I am going to publish. In this installment, I explain why you should apply egress traffic control to your cluster, the attacks involving egress traffic you want to prevent, and the requirements for your system to do so. […]

Name Resolution Issue In CoreDNS: Inside The Mind Of A Problem Solver

CoreDNS 1.5.1 is released,which includes a fixfor an interestingname resolution issuein the Autopath plugin found byAndras Spitzer(AAA Minds) – aka Sendai – a Sr. Site Reliability Engineer atCurvewith 20 years experience engineering, building and automating wildly diversesystems at world class corporate and startup settings alike.HereSendaitakes us step by step through his investigation. If you’re using […]

How Verizon and a BGP Optimizer Knocked Large Parts of the Internet Offline Today

Today at 10:30UTC, the Internet had a small heart attack. A small company in Northern Pennsylvania became a preferred path of many Internet routes through Verizon (AS701), a major Internet transit provider. This was the equivalent of Waze routing an entire freeway down a neighborhood street — resulting in many websites on Cloudflare, and many […]

AWS Control Tower – Set up & Govern a Multi-Account AWS Environment

Earlier this month I met with an enterprise-scale AWS customer. They told me that they are planning to go all-in on AWS, and want to benefit from all that we have learned about setting up and running AWS at scale. In addition to setting up a Cloud Center of Excellence, they want to set up […]

GitLab 12.0 released with Visual Reviews and Dependency List

GitLab 12.0 marks a key step in our journey to create an inclusive approach to DevSecOps, empowering ‘everyone to contribute’. For the past year, we’ve been on an amazing journey, collaborating and creating a solution that brings teams together. There have been thousands of community contributions making GitLab more lovable. We believe everyone can contribute, […]

AWS Security Hub Now Generally Available

I’m a developer, or at least that’s what I tell myself while coming to terms with being a manager. I’m definitely not an infosec expert. I’ve been paged more than once in my career because something I wrote or configured caused a security concern. When systems enable frequent deploys and remove gatekeepers for experimentation, sometimes […]

How AI is Starting to Influence Wireless Communications

Machine learning and deep learning technologies are promising an end-to-end optimization of wireless networks while they commoditize PHY and signal-processing designs and help overcome RF complexities What happens when artificial intelligence (AI) technology arrives on wireless channels? For a start, AI promises to address the design complexity of radio frequency (RF) systems by employing powerful […]