The Netflix TechBlog

Reimagining Experimentation Analysis at Netflix

The Netflix TechBlog

Toby Mao , Sri Sri Perangur , Colin McFarland Another day, another custom script to analyze an A/B test. Maybe you’ve done this before and have an old script lying around. If it’s new, it’s probably going to take some time to set up, right? Not at Netflix.

Applying Netflix DevOps Patterns to Windows

The Netflix TechBlog

Baking Windows with Packer By Justin Phelps and Manuel Correa Customizing Windows images at Netflix was a manual, error-prone, and time consuming process.

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Evolving Regional Evacuation

The Netflix TechBlog

Niosha Behnam | Demand Engineering @ Netflix At Netflix we prioritize innovation and velocity in pursuit of the best experience for our 150+ million global customers.

Predictive CPU isolation of containers at Netflix

The Netflix TechBlog

By Benoit Rostykus, Gabriel Hartmann Noisy Neighbors We’ve all had noisy neighbors at one point in our life. Whether it’s at a cafe or through a wall of an apartment, it is always disruptive.

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Delta: A Data Synchronization and Enrichment Platform

The Netflix TechBlog

Python at Netflix

The Netflix TechBlog

By Pythonistas at Netflix, coordinated by Amjith Ramanujam and edited by Ellen Livengood As many of us prepare to go to PyCon, we wanted to share a sampling of how Python is used at Netflix.

How Netflix microservices tackle dataset pub-sub

The Netflix TechBlog

By Ammar Khaku Introduction In a microservice architecture such as Netflix’s, propagating datasets from a single source to multiple downstream destinations can be challenging.

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Engineering a Studio Quality Experience With High-Quality Audio at Netflix

The Netflix TechBlog

by Guillaume du Pontavice, Phill Williams and Kylee Peña (on behalf of our Streaming Algorithms, Audio Algorithms, and Creative Technologies teams) Remember the epic opening sequence of Stranger Things 2 ?

Evolution of Netflix Conductor:

The Netflix TechBlog

and beyond By Anoop Panicker and Kishore Banala Conductor is a workflow orchestration engine developed and open-sourced by Netflix. If you’re new to Conductor, this earlier blogpost and the documentation should help you get started and acclimatized to Conductor.

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Page Simulator

The Netflix TechBlog

Page Simulation for Better Offline Metrics at Netflix by David Gevorkyan , Mehmet Yilmaz , Ajinkya More , Gaurav Agrawal , Richard Wellington , Vivek Kaushal , Prasanna Padmanabhan , Justin Basilico At Netflix, we spend a lot of effort to make it easy for our members to find content they will love.

MezzFS?—?Mounting object storage in Netflix’s media processing platform

The Netflix TechBlog

MezzFS?—?Mounting Mounting object storage in Netflix’s media processing platform By Barak Alon (on behalf of Netflix’s Media Cloud Engineering team) MezzFS (short for “Mezzanine File System”) is a tool we’ve developed at Netflix that mounts cloud objects as local files via FUSE.

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Extending Vector with eBPF to inspect host and container performance

The Netflix TechBlog

by Jason Koch , with Martin Spier , Brendan Gregg , Ed Hunter Improving the tools available to our engineers to help them diagnose, triage, and work through software performance challenges in the cloud is a key goal for the cloud performance engineering team at Netflix.

Netflix Studio Hack Day?—?May 2019

The Netflix TechBlog

Netflix Studio Hack Day ?—?May May 2019 By Tom Richards , Carenina Garcia Motion , and Marlee Tart Hack Days are a big deal at Netflix. They’re a chance to bring together employees from all our different disciplines to explore new ideas and experiment with emerging technologies.

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Spinnaker Sets Sail to the Continuous Delivery Foundation

The Netflix TechBlog

Author: Andy Glover Since releasing Spinnaker to the open source community in 2015 , the platform has flourished with the addition of new cloud providers, triggers, pipeline stages, and much more.

GraphQL Search Indexing

The Netflix TechBlog

by Artem Shtatnov and Ravi Srinivas Ranganathan Almost a year ago we described our learnings from adopting GraphQL on the Netflix Marketing Tech team. We have a lot more to share since then!

Re-Architecting the Video Gatekeeper

The Netflix TechBlog

By Drew Koszewnik This is the story about how the Content Setup Engineering team used Hollow, a Netflix OSS technology, to re-architect and simplify an essential component in our content pipeline?—?delivering delivering a large amount of business value in the process.

How Data Inspires Building a Scalable, Resilient and Secure Cloud Infrastructure At Netflix

The Netflix TechBlog

Netflix’s engineering culture is predicated on Freedom & Responsibility, the idea that everyone (and every team) at Netflix is entrusted with a core responsibility and they are free to operate with freedom to satisfy their mission.

Open-sourcing Polynote: an IDE-inspired polyglot notebook

The Netflix TechBlog

Jeremy Smith , Jonathan Indig , Faisal Siddiqi We are pleased to announce the open-source launch of Polynote : a new, polyglot notebook with first-class Scala support, Apache Spark integration, multi-language interoperability including Scala, Python, and SQL, as-you-type autocomplete, and more.

Bringing Rich Experiences to Memory-constrained TV Devices

The Netflix TechBlog

Bringing Rich Experiences to Memory-Constrained TV Devices By Jason Munning, Archana Kumar, Kris Range Netflix has over 148M paid members streaming on more than half a billion devices spanning over 1,900 different types.

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Open Sourcing Mantis: A Platform For Building Cost-Effective, Realtime, Operations-Focused…

The Netflix TechBlog

ML Platform Meetup: Infra for Contextual Bandits and Reinforcement Learning

The Netflix TechBlog

Faisal Siddiqi Infrastructure for Contextual Bandits and Reinforcement Learning?—? theme of the ML Platform meetup hosted at Netflix, Los Gatos on Sep 12, 2019. Contextual and Multi-armed Bandits enable faster and adaptive alternatives to traditional A/B Testing.

Lerner?—?using RL agents for test case scheduling

The Netflix TechBlog

Lerner?—?using using RL agents for test case scheduling By: Stanislav Kirdey , Kevin Cureton , Scott Rick , Sankar Ramanathan Introduction Netflix brings delightful customer experiences to homes on a variety of devices that continues to grow each day.

Introducing SVT-AV1: a scalable open-source AV1 framework

The Netflix TechBlog

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!

Making our Android Studio Apps Reactive with UI Components & Redux

The Netflix TechBlog

By Juliano Moraes , David Henry , Corey Grunewald & Jim Isaacs Recently Netflix has started building mobile apps to bring technology and innovation to our Studio Physical Productions , the portion of the business responsible for producing our TV shows and movies.

Design Principles for Mathematical Engineering in Experimentation Platform

The Netflix TechBlog

Trace Event, Chrome and More Profile Formats on FlameScope

The Netflix TechBlog

FlameScope sub-second heatmap visualization. Less than a year ago, FlameScope was released as a proof of concept for a new profile visualization.

Android Rx onError Guidelines

The Netflix TechBlog

By Ed Ballot “Creating a good API is hard.”?—? anyone who has created an API used by others As with any API, wrapping your data stream in a Rx observable requires consideration for reasonable error handling and intuitive behavior. The following guidelines are intended to help developers create consistent and intuitive API.

Netflix Public Bug Bounty, 1 year later

The Netflix TechBlog

by Astha Singhal (Netflix Application Security) As Netflix continues to create entertainment people love, the security team continues to keep our members, partners, and employees secure. The security research community has partnered with us to improve the security of the Netflix service for the past few years through our responsible disclosure and bug bounty programs.

Time to First Byte: What It Is and Why It Matters

CSS Wizardry

CIO research: Cloud complexity of growing concern

Dynatrace

Dynatrace news. My favorite slide, that I used in nearly every one of my presentations, is a simple statement; “You have one of the hardest jobs in the world.”. I see people nod their head, smile and sometimes pull out a phone and take a photo.

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Troubleshooting Knative Prometheus GC Issues with Dynatrace

Dynatrace

Dynatrace news. In my current work, I spend a lot of time with keptn – an Open Source Control Plane for Continuous Deployment and Automated Operations. I deployed keptn on a GKE cluster and it’s been running there for the past couple of weeks.

Keeping DevOps cool in a heated environment

Dynatrace

Dynatrace news. Cloud platforms are somewhat a staple component to enterprises’ IT environments today, helping to achieve objectives and drive better business operations, but more often than not we don’t see the outcomes or rewards reaped from the use of such platforms.

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Self-Host Your Static Assets

CSS Wizardry

One of the quickest wins—and one of the first things I recommend my clients do—to make websites faster can at first seem counter-intuitive: you should self-host all of your static assets, forgoing others’ CDNs/infrastructure.

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Improved content validation for Synthetic browser and clickpath monitors

Dynatrace

Dynatrace news. With the release of Dynatrace 1.178, we’ve added a new type of content validation capability for synthetic browser and clickpath monitors. The contains visible text option mimics the Find (Ctrl+F/Cmd+F) functionality of a web browser.

Giving data a heartbeat

Dynatrace

Dynatrace news. I love data. I have spent virtually my entire career looking at data. Synthetic data, network data, system data, and the list goes on.

Dynatrace W3C Trace Context support provides more interoperability between monitoring environments

Dynatrace

Dynatrace news. As the popularity of microservices architecture increases, more teams are getting involved with the delivery of individual product features.

AI-powered, automated observability and deep visibility into serverless apps running on Google Cloud Run

Dynatrace

Dynatrace news. Cloud Run brings serverless to containers. You can run containers on Cloud Run for Anthos for consistency between on-prem and cloud environments, or in fully managed Cloud Run environments.

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How to get the most value out of Session Replay: Use cases and examples

Dynatrace

Dynatrace news. At Dynatrace, we’re constantly striving to come up with solutions that can help modernize your performance and user experience monitoring strategies.

Explore Autonomous Cloud Management at an Autonomous Cloud Lab

Dynatrace

Dynatrace news. The path to Autonomous Cloud Management (ACM) and NoOps is a transformational journey that reaches all parts of an organization. It fundamentally changes how teams and tools work together with a common goal: deliver software faster, more frequently and with a higher degree of quality.

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Game changing — From zero to Autonomous Cloud Management today

Dynatrace

Dynatrace news. I’m going to revisit the Dynatrace digital transformation in this blog, because it is also an excellent story that began our journey to Autonomous Cloud Management (ACM).

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Unleash the power of the Dynatrace Markdown Dashboard Tile

Dynatrace

Dynatrace news. Dynatrace Dashboards are constantly updated with new capabilities. If you want to get up to speed, check out my recent Performance Clinics: “ AI-Powered Dashboarding ” and “ Advanced Business Dashboarding and Analytics ”.

Build automated self-healing systems with xMatters and Dynatrace (Part 2 of 3)

Dynatrace

Dynatrace news. Welcome back to the blog series in which we share how you can easily solve three common problem scenarios by using Dynatrace and xMatters Flow Designer.

How AI Solves the Kubernetes Complexity Conundrum

Dynatrace

Dynatrace news. Kubernetes has certainly earned its reputation as a pivotal part in enterprise IT’s shift from yesterday’s monoliths to today’s more dynamic microservices, containers and multi-cloud infrastructures. But the shift has been a double-edged sword.