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Category: Mechanical Engineering

Scaling Spark Streaming for Logging Event Ingestion

How Airbnb scaled Spark streaming with a novel balanced Kafka reader that can ingest massive amount of logging events from Kafka in near real-time by Hao Wang and Liyin Tang Logging Event Ingestion at Airbnb Logging events are emitted from clients (such as mobile apps and web browser) and online services with key information and context about the actions or operations. Each event carries a specific piece of information. For example, when a guest searches for a beach house in Malibu…

Observability at Scale: Building Uber’s Alerting Ecosystem

By Shreyas Srivatsan Uber’s software architectures consists of thousands of microservices that empower teams to iterate quickly and support our company’s global growth. These microservices support a variety of solutions, such as mobile applications, internal and infrastructure services, and products along with complex configurations that affect these products at city and sub-city levels. To maintain our growth and architecture, Uber’s Observability team built a robust, scalable metrics and alerting pipeline responsible for detecting, mitigating, and notifying engineers of issues with…

New technology paves the way for fewer orange barrels and safer, quicker road repairs

A Purdue University team developed a method and equipment to better repair paved roadways and highways using electrical resistance measurements to measure the optimum curing time for asphalt emulsions. Credit: Purdue University Imagine a drive to grandma’s house or to work with fewer “left lane closed ahead” signs, fewer detour signs, fewer orange barrels and also safer travel near road crews. That may soon be possible with new technology from Purdue University researchers. The Purdue team developed a method and…

Treated superalloys demonstrate unprecedented heat resistance — ScienceDaily

Researchers at Idaho National Laboratory have discovered how to make “superalloys” even more super, extending useful life by thousands of hours. The discovery could improve materials performance for electrical generators and nuclear reactors. The key is to heat and cool the superalloy in a specific way. That creates a microstructure within the material that can withstand high heat more than six times longer than an untreated counterpart. “We came up with a way to make a superalloy that is much…

Facebook, U.K. Year of Engineering focus on the future

We are committed to building a future workforce that is as diverse as the communities we serve. As part of that commitment, Facebook London has joined the Year of Engineering campaign’s November focus on how engineering is shaping the future and ramped up our efforts to reach more young people. Our combined efforts will encourage students to focus on science, technology, engineering, and math, and to pursue a career path that leads to a job in the technology sector. Across…

boundary-layer : Declarative Airflow Workflows – Code as Craft

When Etsy decided last year to migrate our operations to Google Cloud Platform (GCP), one of our primary motivations was to enable our machine learning teams with scalable resources and the latest big-data and ML technologies. Early in the cloud migration process, we convened a cross-functional team between the Data Engineering and Machine Learning Infrastructure groups in order to design and build a new data platform focused on this goal. One of the first choices our team faced was how to…

Announcing the 2019 Uber AI Residency

By Theofanis Karaletsos, Ersin Yumer, Raquel Urtasun, and Zoubin Ghahramani on behalf of Uber AI Labs and Uber ATG Connecting the digital and physical worlds safely and reliably on the Uber platform presents exciting technological challenges and opportunities. For Uber, artificial intelligence (AI) is essential to developing systems that are capable of optimized, automated decision making at scale. AI at Uber is a rapidly growing area across both research and applications, including self-driving vehicles. We invite you to join us on…

My Journey from Working as a Fabric Weaver in Ethiopia to Becoming a Software Engineer at Uber in San Francisco

By Samuel Zemedkun I was born in Addis Ababa, Ethiopia and was raised there with my five younger sisters. My father made traditional fabrics, weaving one thread at a time. Weaving in Ethiopia is a family business and every member of the family plays a role. My mother, my siblings, and I helped prepare the threads. In a weaving family, boys typically graduate from preparing threads to making fabrics around the age of 12. My uncle encouraged my father to…

MU’s Huang gives guest seminar at Johns Hopkins

Mechanical and Aerospace Engineering Professor Guoliang Huang gave a guest seminar at Johns Hopkins University on Nov. 2. The prestigious seminar series was hosted by the Hopkins Extreme Materials Institute. The talk was titled “Programmable and Modulated Metamaterials for Unprecedented Wave Propagation Control.” For more information on the seminar and the seminar series, visit the HEMI website. Source link…

Cloud Computing without Containers

Cloudflare has a cloud computing platform called Workers. Unlike essentially every other cloud computing platform I know of, it doesn’t use containers or virtual machines. We believe that is the future of Serverless and cloud computing in general, and I’ll try to convince you why. Isolates Two years ago we had a problem. We were limited in how many features and options we could build in-house, we needed a way for customers to be able to build for themselves. We…