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Category: Civil Engineering

Optimizing M3: How Uber Halved Our Metrics Ingestion Latency by (Briefly) Forking the Go Compiler

In Uber’s New York engineering office, our Observability team maintains a robust, scalable metrics and alerting pipeline responsible for detecting, mitigating, and notifying engineers of issues with their services as soon as they occur. Monitoring the health of our thousands of microservices helps us ensure that our platform runs smoothly and efficiently for our millions of users across the globe, from riders and driver-partners to eaters and restaurant-partners. A few months ago, a routine deployment in a core service of…

Engineering LinkedIn Reactions | LinkedIn Engineering

LinkedIn’s New Reactions  On LinkedIn, you can expect a “like” button to appear on every post in the feed, in every context in which a post appears. You can expect it to maintain state wherever it’s seen. You can expect it to notify the author that you liked the post, and you can expect posts with more engagement to rank higher in your feed. The architectural reach of a “like” in the LinkedIn ecosystem cannot be overstated.  “Likes” flow through…

a scalable open-source AV1 framework

by Andrey Norkin, Joel Sole, Kyle Swanson, Mariana Afonso, Anush Moorthy, Anne Aaron Netflix Headquarters, Winchester Circle. Netflix headquarters circa 2014. It’s a nice building with good architecture! This was the primary home of Netflix for a number of years during the company’s growth, but at some point Netflix had outgrown its home and needed more space. One approach to solve this problem would have been to extend the building by attaching new rooms, hallways, and rebuilding the older ones. However,…

Using bacteria to protect roads from deicer deterioration

A compound, called CAOXY, that forms when road salt interacts with concrete is behind the deterioration of road surfaces and the formation of potholes. Drexel University researchers are trying to thwart CAOXY formation using a special kind of bacteria. Credit: Drexel University Tiny bacteria could soon be chipping in to keep roads from chipping away in the winter, according to Drexel University researchers who are looking into new ways to make our infrastructure more resilient. Chemicals, like calcium chloride—commonly called…

Researchers outline a new pavement maintenance model that accounts for future uncertainties in cost and deterioration

The researchers found that traditional long-term strategies, which employ rigid schedules for future road treatments, may overestimate total life-cycle costs. Credit: Nextvoyage/Pexels In 2017, the American Society of Civil Engineer’s Infrastructure Report Card gave America’s infrastructure an overall grade of a D+. Given that the report found the U.S. had been paying for just half of its infrastructure needs, the low grade unfortunately wasn’t surprising. To solve the crisis, researchers Fengdi Guo, Jeremy Gregory, and Randolph Kirchain at the MIT…

Ad Tech & Customer Intelligence Engineering at Wayfair – Wayfair Tech Blog

An introduction by way of some marketing prose. Cutting edge intelligent systems. Big data at scale. World class ad tech to drive phenomenal growth in a multi-billion dollar business. Real-time tracking and personalization to engage millions of shoppers daily: Ad Tech & Customer Intelligence Engineering @ Wayfair. Meet the two halves of an amazing engineering team. Ad Tech: Responsible for the development of all Wayfair proprietary Ad Tech, continuously delivering solutions which outperform all available commercial alternatives. Keyword search optimization…

Why buildings keep collapsing in Lagos and what can be done about it

Credit: CC0 Public Domain There’s been a spate of building collapses in Lagos, Nigeria. In some cases, people have died. In one instance a building had been marked for demolition at least three times. There are also concerns about hundreds of other buildings in the city. The Conversation Africa’s Moina Spooner spoke to Ndubisi Onwuanyi about this. How common is this in Lagos? What causes these collapses? Building collapses in Lagos have become common in recent years. Numbers are…

Trends That Will Impact the Construction Industry

Trends are not always fad, especially when we talk about the latest ones that are shaping up the construction industry. Every year new trends are introduced enriching the industry in a myriad of ways. These not only help in growing the construction industry but are also preparing it for the future. So for the construction firms to stay on top of their game, it is but vital to incorporate these trends into the work. Simultaneously, it is essential to know…

Preventing Request Loops Using CDN-Loop

HTTP requests typically originate with a client, and end at a web server that processes the request and returns some response. Such requests may pass through multiple proxies before they arrive at the requested resource. If one of these proxies is configured badly (for instance, back to a proxy that had already processed it) then the request may be caught in a loop. Request loops, accidental or malicious, can consume resources and degrade user’s Internet performance. Such loops can even…

Engineering dive into Slack Enterprise Key Management

Over the years, customers have asked us for stricter control over and visibility into their data in Slack, all while maintaining the product’s most essential features, such as link unfurling, mentions, notifications, and search. We talked with many of these customers to get a better understanding of their threat models, how they’d like to assert that control, and what kind of visibility they were lacking. That brings us to this most auspicious day: The release of Slack Enterprise Key Management,…