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Engineering News

Powering Helix’s Auto Rebalancer with Topology-Aware Partition Placement

Partition assignments are critical to a typical distributed data system. A partition’s replicas could be in different states. For example, in the above graph, each partition has three replicas; one of them is the Primary replica, while the other two are Backup replicas.   Apache Helix is a generic cluster management framework used for the automatic management of partitioned and replicated distributed systems hosted on a cluster of nodes. Helix automates the reassignment of partitions in the face of node…

Improve Your Communication using WiFi Calling

With so many features on our smartphones, we often forget what these devices were originally intended to do — make calls. Of course, as much time as we spend taking photos, browsing social media, shopping, and playing games on our phones, we still expect to be able to make calls without any problems. Although rare, many items can interfere with the features on any phone, no matter what network you are using. Find out how Wi-Fi calling can help improve…

Using AI for new visual storytelling techniques in VR | Engineering Blog | Facebook Code

Artificial intelligence is becoming an increasingly important tool within the artistic community to foster visual creativity. Two frequently used techniques are generative adversarial networks (GANs), which can generate visually realistic images, and style transfer, which can turn photos or videos into works of art by applying the artistic qualities of one image style — such as a painting — to other images and videos. At Facebook AI Research (FAIR), we wanted to investigate further how artists and professionals typically trained…

Chaos Automation Platform – Netflix TechBlog – Medium

We are excited to announce ChAP, the newest member of our chaos tooling family! Chaos Monkey and Chaos Kong ensure our resilience to instance and regional failures, but threats to availability can also come from disruptions at the microservice level. FIT was built to inject microservice-level failure in production, and ChAP was built to overcome the limitations of FIT so we can increase the safety, cadence, and breadth of experimentation. At a high level, the platform interrogates the deployment pipeline…

Toward additive manufacturing

A scientist using a 3D printer at the ARTC. Credit: A*STAR Advanced Remanufacturing and Technology Centre Automation, robotics, advanced computer-aided design, sensing and diagnostic technologies have revolutionized the modern factory, allowing the building of complex products, from microchips to cars and even airplanes, with unprecedented cost-efficiency, scale and reliability. The modern factory represents the pinnacle of mass production technology, refined over a hundred years or more, to produce identical items for mass consumption at the lowest cost. Every manufacturing line…

BinaryAlert: Real-time Serverless Malware Detection

Example Use Cases Enterprise alerting: Find malware infections on laptops and servers by analyzing executable binaries. Email attachments: Identify malicious documents sent to your organization. User uploads: Detect when a user uploads a malicious file to your application. Security research: Quickly test new iterations of YARA rules against your own private collections of files using built-in retroactive analysis. Leveraging YARA Rules YARA is a powerful pattern-matching tool for binary analysis. Unlike a simple hash-based signature, YARA rules can classify entire families of…

LinkedIn Passes IPv6 Milestone | LinkedIn Engineering

Earlier this month, and for the first time in our company’s history, more than 50% of pages on LinkedIn were accessed over IPv6 from mobile devices in the U.S. This is another step in the internet community’s long migration to IPv6 from IPv4, which we have written about previously. Since we enabled IPv6 on our mail servers in 2013 and then on our web site in 2014, we have seen increased growth of our external IPv6 traffic. We are currently…

Large, distant comets more common than previously thought — ScienceDaily

Comets that take more than 200 years to make one revolution around the sun are notoriously difficult to study. Because they spend most of their time far from our area of the solar system, many “long-period comets” will never approach the sun in a person’s lifetime. In fact, those that travel inward from the Oort Cloud — a group of icy bodies beginning roughly 300 billion kilometers away from the sun — can have periods of thousands or even millions…

Cloudflare + Fight for the Future

For Net Neutrality Day on July 12, Fight for the Future (FFTF) launched a Cloudflare App installable for websites all over the world. Sites with it installed saw as many as 178 million page views prompting the users to write to their local congressional representative on the importance of Net Neutrality. All told, the FCC received over 2 million comments and Congress received millions of emails and phone calls. Screenshot of App Page for FFTF’s Battle for the Net app.…

Building Uber’s Internal Chat Solution

Two years ago, Uber’s previous chat application began showing signs that it would not be able to adapt to our growth. There were app crashes, performance hiccups, and outages that crippled our company’s ability to effectively communicate online. With user satisfaction at an all-time low, we needed a new solution. With operations in over 620 cities, it was paramount for us to identify a chat solution that would enable Uber employees to reliably communicate on desktop and mobile regardless of…