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Category: Construction Engineering

When in Rome: How Spotify halved build times with just one script

How do you cut iOS app build times by 50%? Patrick Balestra, an engineer at Spotify, explains how his team helped improve developer productivity and the end user experience. One of the great things about working at Spotify as an engineer, is the opportunity to improve the experience of our listeners. But it’s equally rewarding to create an environment where we can help our developers work faster and improve productivity. That’s where my team comes in. We build tools, systems,…

Client Consistency at Slack: Beyond Libslack

Photo by VanveenJF Two years ago, I wrote a post about Libslack, Slack’s shared C++ client library. That post described how Slack used the Libslack library in its mobile applications to encapsulate shared business logic, and to handle syncing and caching of data. In the intervening time, we decided to move away from using a shared C++ library in our clients, but we haven’t discussed that decision publicly. We were spurred to write an update when Dropbox published this post…

It’s crowded in here!

We recently gave a presentation on Programming socket lookup with BPF at the Linux Plumbers Conference 2019 in Lisbon, Portugal. This blog post is a recap of the problem statement and proposed solution we presented. CC0 Public Domain, PxHere Our edge servers are crowded. We run more than a dozen public facing services, leaving aside the all internal ones that do the work behind the scenes. Quick Quiz #1: How many can you name? We blogged about them! Jump to…

Building bridges in Botswana

Benjamin Steger and his fellow cadets play duck-duck goose with children from a Botswanan tribe. The entire game was played without spoken words. Ever tried to play duck-duck goose without talking? For Benjamin Steger, a junior civil engineering major at the University of Missouri, that opportunity emerged in the middle of the African continent. Steger and his fellow cadets in the U.S. Army ROTC Cadet Coalition Warfighter Program had been allowed passage into a federally protected tribal territory in Botswana…

Utopia P2P Ecosystem Is Your Proven Way To Safety!

Internet security and privacy are the hottest themes of 2019. The endless rise of cybercrime, data breaches, and improper data tracking cases have already made Internet users worry about online security. Meet the system that can provide a decent degree of protection for all without exception – Utopia P2P ecosystem. Utopia is a revolutionary enclosed decentralized ecosystem, which has all the necessary tools to work in the network. A team of highly qualified specialists worked on the creation of the…

Civil Academy of Distinguished Alumni inducts newest members

On Sept. 6, the Mizzou Civil & Environmental Engineering Department inducted the newest members into its renowned Academy of Distinguished Alumni. Ronald Berry, David Brune, Peter Hartman, Bryan Hartnagel, Ray Kowalik and Brett Trautman made up the 2019 induction class. The Civil Engineering Academy was established in 1998 by the MU Department of Civil and Environmental Engineering and an active group of civil engineering alumni. The purpose of the Academy is to honor outstanding graduates and distinguished friends of the…

How much are you polluting your office air just by existing?

Just by breathing or wearing deodorant, you have more influence over your office space than you might think, a growing body of evidence shows. But could these basic acts of existence also be polluting the air in the office room where you work? To find out, a team of engineers at Purdue University has been conducting one of the largest studies of its kind in the office spaces of a building rigged with thousands of sensors. The goal is to…

MU receives nearly $4 million from NIH for biomedical discoveries

“This is an exciting time for translational research at MU,” Mizzou Engineering’s Sheila Grant said. “We are honored to be selected as the lead institution in this effort to turn biomedical breakthroughs into potentially life-saving products. This grant illustrates the important role the University of Missouri System will play in the future of translational research that will benefit the world’s population.” The National Institutes of Health has awarded the University of Missouri-Columbia nearly $4 million to direct a consortium of…

Ultrasound can reveal gene expression in the body — ScienceDaily

Researchers are developing a technique for imaging mammalian gene expression with ultrasound by combining human bacteria and virus DNA. Some of the most important tools in the toolbox of modern cell biologists are special chunks of DNA that act like spies, reporting on the cell’s function. The markers, known as reporter genes, allow researchers to get a sense for what cells are doing by watching genetic programs embedded in their DNA turn on and off. Reporter genes work by encoding…

A Time Series Database on top of Hbase

Alejandro Velez & Parag Kesar Software Engineers, Data Engineering PinalyticsDB is Pinterest’s proprietary time series database. At Pinterest, we rely on PinalyticsDB as a backend for storing and visualizing thousands of time series reports such as the sample case below, segmented by country. PinalyticsDB was built several years ago on top of Hbase. It utilizes a real time map-reduce architecture for aggregations using Hbase coprocessors. However, as Pinterest grew and the number of reports grew, as well as the usage…