The Netflix TechBlog

JUNE 13, 2023

Migrating Critical Traffic At Scale with No Downtime — Part 2 Shyam Gala , Javier Fernandez-Ivern , Anup Rokkam Pratap , Devang Shah Picture yourself enthralled by the latest episode of your beloved Netflix series, delighting in an uninterrupted, high-definition streaming experience. This is where large-scale system migrations come into play.

Traffic 282

Traffic Metrics Systems Strategy 282

High Scalability

FEBRUARY 19, 2021

As a basis for that discussion, first some definitions: Dependability The degree to which a product or service can be relied upon. This means a system that is not merely available but is also engineered with extensive redundant measures to continue to work as its users expect. Availability and Reliability are forms of dependability.

Engineering 215

Engineering Systems Scalability Availability 215

The Netflix TechBlog

JULY 26, 2021

This happens at an unprecedented scale and introduces many interesting challenges; one of the challenges is how to provide visibility of Studio data across multiple phases and systems to facilitate operational excellence and empower decision making. Genesis Data Source and Input definition example Genesis is a stateless CLI written in Node.js

Big Data 256

Big Data Government Analytics Processing 256

Dynatrace

NOVEMBER 3, 2021

Monitoring , by textbook definition, is the process of collecting, analyzing, and using information to track a program’s progress toward reaching its objectives and to guide management decisions. Logging provides additional data but is typically viewed in isolation of a broader system context.

Monitoring 233

Monitoring Metrics DevOps Scalability 233

The Netflix TechBlog

FEBRUARY 9, 2021

The whole system was quite complex, and starting to become brittle. The API server orchestrates backend systems to authenticate the user. Upstream systems had to reopen the tokens to identify the user logging in and potentially manage multiple parallel identity data structures, which could easily get out of sync.

Architecture 226

Architecture Latency Servers Website 226

Alex Russell

FEBRUARY 28, 2022

I propose four key ingredients: Definition: What is "performance" beyond page speed? These steps inform a general description of the interaction loop: The system is ready to receive input. The system is ready to receive input. Improving latency for one scenario can degrade it in another. Medians Don't Matter #.

Performance 113

Performance Latency Architecture Network 113

Dynatrace

MAY 27, 2021

It keeps application processing closer to the data to maintain higher bandwidth and lower latencies, adheres to compliance regulations that don’t yet approve cloud managed services, and allows data center capital investments to be fully amortized before moving to the cloud. AWS System Manager.

AWS 132

AWS IoT Virtualization Monitoring 132

VoltDB

MARCH 13, 2024

Because until recently, most computer interaction was human-to-computer, and humans are (relatively) flexible when systems misbehave: they can try a few more times and then go off and do something else before trying again later. Automated systems depend on each other for the rapid responses that enable them to continue working.

Availability 52

Availability Latency DevOps Systems 52

Dynatrace

OCTOBER 4, 2021

An application programming interface (API) is a set of definitions and protocols for building and integrating application software that enables your product to communicate with other products and services. As a result, API monitoring has become a must for DevOps teams. So what is API monitoring?

Monitoring 189

Monitoring Latency Metrics Availability 189

Dynatrace

JUNE 25, 2021

Distributed tracing describes the act of following a transaction through all participating applications (tiers) and sub-systems, such as databases. All systems that support distributed tracing use some identifiers, the trace context, that is passed along with the transaction. W3C Trace Context. But how is this relationship represented?

Open Source 207

Open Source Monitoring Google Systems 207

Percona

NOVEMBER 2, 2023

MongoDB is a dynamic database system continually evolving to deliver optimized performance, robust security, and limitless scalability. Powerful change streams and support for data definition language operations. Ready to supercharge your MongoDB experience? Introduction of clustered collections for optimized analytical queries.

Best Practices 92

Best Practices Hardware Tuning Scalability 92

The Netflix TechBlog

DECEMBER 21, 2020

Use cases We found several use cases where a system like AutoOptimize can bring tons of value. Merge As the data lands into the data warehouse through real-time data ingestion systems, it comes in different sizes. Previously we had our homegrown system called Ursula responsible for data ingestion into the Hive based warehouse.

Storage 209

Storage Latency Efficiency Data Engineering 209

The Netflix TechBlog

JULY 12, 2019

Gatekeeper is the system at Netflix responsible for evaluating the “liveness” of videos and assets on the site. Gatekeeper accomplishes its prescribed task by aggregating data from multiple upstream systems, applying some business logic, then producing an output detailing the status of each video in each country.

Cache 183

Cache Architecture Latency Engineering 183

The Netflix TechBlog

AUGUST 13, 2020

Our streaming teams need a monitoring system that enables them to quickly diagnose and remediate problems; seconds count! Our Node team needs a system that empowers a small group to operate a large fleet. For example, a latency increase is less critical than error rate increase and some error codes are less critical than others.

Monitoring 215

Monitoring Tuning Traffic Metrics 215

VoltDB

MARCH 22, 2024

Real-world systems have real-world anomalies The real world imposes its own rules on us. Existing systems don’t easily fit into the new API definition Last year’s Mobile World Congress (MWC) was attended by a number of vendors venturing into the API space. People are finding out this is not as easy to do as it looks.

Java 52

Java Latency Servers Code 52

Dynatrace

DECEMBER 2, 2021

To get a better handle on this, let’s start with some definitions. Cloud-native software and its supporting tools and infrastructure generate a diversity of metrics and data points every second that indicate a system’s state and performance. For example, an objective for system availability can be: 90% – one 9.

Metrics 203

Metrics Best Practices DevOps Infrastructure 203

The Netflix TechBlog

AUGUST 22, 2019

The configuration file, referenced scripts, and artifact dependency definitions all live in an internal git repository. With their new Docker image, users launch their Packer baking jobs using Titus , our container management system. The canary stage will determine a score based on metrics such as CPU, threads, latency, and GC pauses.

DevOps 209

DevOps AWS Tuning Infrastructure 209

The Netflix TechBlog

FEBRUARY 9, 2021

Server-generated assets, since client-side generation would require the retrieval of many individual images, which would increase latency and time-to-render. To reduce latency, assets should be generated in an offline fashion and not in real time. Let’s put it all together and review the system interaction diagram.

Engineering 169

Engineering Storage Latency Entertainment 169

Dynatrace

JULY 10, 2019

What Dynatrace deployment is the best fit for your technology stack, and is the OneAgent compatible with your system? With insights from Dynatrace into network latency and utilization of your cloud resources, you can design your scaling mechanisms and save on costly CPU hours. OneAgent & application metrics.

Java 144

Java Best Practices Metrics Azure 144

The Netflix TechBlog

MARCH 4, 2024

Given the extensive scope and intricate complexity inherent to such a distributed, large-scale system, even if the failed jobs account for a tiny portion of the total workload, diagnosing and remediating job failures can cause considerable operational burdens.

Tuning 214

Tuning Efficiency Big Data Engineering 214

Speed Curve

FEBRUARY 5, 2024

Latency – How much time does it take to deliver a packet from A to B. Definitely worth a read! Today, it's possible to add these headers from your CDN with ease, if they aren't already set up out of the box. Also measured by round trip time (RTT). Origin Time – How much time did the request spend from your origin?

Servers 57

Servers Cache Benchmarking Retail 57

The Morning Paper

MAY 21, 2019

” This paper describes a “far memory” system that has been in production deployment at Google since 2016. This boils down to a single digit µs latency toleration in the tail for far memory, and in addition to security and privacy concerns, rules out remote memory solutions.

Software 78

Software Software Google Hardware 78

The Netflix TechBlog

FEBRUARY 9, 2021

In particular, it’s our job to design and build the systems and protocols that enable customers from all over the world to sign up for Netflix with the plan features and incentives that best suit their needs. Plans & Offers Definitions Let’s define what a plan and an offer is at Netflix.

Engineering 144

Engineering Scalability Architecture Innovation 144

Dotcom-Montior

DECEMBER 8, 2021

Systems, web applications, servers, devices, etc., SREs and DevOps teams can use these incidents to build back better and improve their systems and services. Now that we have talked about what an incident is, incident management is the process by which teams resolve these events and bring systems and services back to normal operation.

Social Media 90

Social Media Monitoring Latency DevOps 90

ScaleOut Software

JULY 14, 2021

Azure Digital Twins for creating a graphical representation of the assets within an organization using the Digital Twin Definition Language, processing events, and visualizing entity graphs to display and query status. A health tracking device might indicate a combination of signals (blood pressure, blood oxygen, heart rate, etc.)

IoT 52

IoT Azure Analytics Serverless 52

KeyCDN

FEBRUARY 4, 2021

DNS, which stands for domain name system , is an Internet service that translates domains names into IP addresses. So DNS services definitely go down! Using a fast DNS hosting provider ensures there is less latency between the DNS lookup and TTFB. What is DNS? Speed Speed also plays a role with DNS.

Cache 134

Cache Website Internet Internet 134

All Things Distributed

JULY 20, 2015

To achieve concurrency control, we implemented Amazon ECS using one of Amazon’s core distributed systems primitives: a Paxos-based transactional journal based data store that keeps a record of every change made to a data entry. task definition). latency and stability) with Empire as well as security benefits.

Latency 162

Latency Architecture AWS Open Source 162

Testsigma

DECEMBER 12, 2020

To ease out the web development, developers think of new ways to have a dedicated and organised system of sustainable websites such as subgrids. Let alone browsers, the website may get into trouble for different resolutions, different operating systems and different browser versions too!! Challenges In Cross-Browser Testing.

Testing 53

Testing Operating System Website Latency 53

Testsigma

JULY 23, 2020

Let’s briefly describe the basic definitions of each of them first and then describe in detail the underlying differences that make them fall apart in certifying the quality of each of them. Any network-related latencies result in performance hindrances in these types of applications.

Testing 63

Testing Internet Internet Latency 63

Smashing Magazine

AUGUST 3, 2023

Core Web Vital metrics definitions. I know that is a lot of information to unpack in a single sitting, and it definitely took our team time to wrap our minds around what it takes to achieve a low LCP score. Note : Google plans to replace this metric with another one called Interaction to Next Paint (INP) beginning in 2024.

Performance 75

Performance Cache Traffic Metrics 75

The Morning Paper

NOVEMBER 24, 2019

This paper was published at OOPSLA, but perhaps it’s amongst the distributed systems community that I expect there to be the greatest interest. The paper sets the discussion in the context of geo-replicated distributed systems, but of course the same mechanisms could be equally useful in the context of local-first applications.

Strategy 104

Strategy Systems Latency Processing 104

The Morning Paper

JUNE 30, 2019

Here’s the set-up as relayed to me by Pat (with permission): At work, I am part of a good sized team working on a large system implementation. One of the very senior engineers with 25+ years experience mentioned a problem with the system. In such a situation I’d expect to see unusually high latencies, but normal throughput).

Traffic 75

Traffic Latency Programming Scalability 75

All Things Distributed

JULY 14, 2015

In this blog post, I will explain how these three new capabilities empower you to build applications with distributed systems architecture and create responsive, reliable, and high-performance applications using DynamoDB that work at any scale. DynamoDB Streams simplifies and improves this design pattern with a distributed systems approach.

Database 165

Database Lambda AWS IoT 165

Particular Software

JUNE 3, 2019

We now live in an age when it's possible to stream high definition TV, and yet we are not satisfied. From Udi Dahan's Advanced Distributed Systems Design Course , Day 1 Problem of scale The real problem with bandwidth is not one of absolute speed but one of scale. Today, we have DSL and cable modems; tomorrow, fiber may be widespread.

Latency 40

Latency Speed Network Strategy 40

Percona

MAY 15, 2023

The main reason behind this is that MySQL is a relational database system (RDBMS), and any data that is going to be written in it must respect the RDBMS rules. Normally this solution requires a full code redesign and could be quite difficult to achieve when it is injected after the initial code architecture definition. eu-central-1.elb.amazonaws.com

Traffic 127

Traffic Scalability Database Servers 127

CSS - Tricks

MARCH 16, 2020

If not, then check your Node installation is working and you’re definitely in the correct project directory. then(chrome => { const opts = { port: chrome.port }; lighthouse(url, opts); }); }; If you were to execute this code, you’ll notice that something definitely seems to be happening. module called fs (short for "file system").

Google 82

Google Latency Website Metrics 82

The Netflix TechBlog

NOVEMBER 4, 2019

No single service has complete context into how the system works. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. We use Kafka to handle change events, but any system that can notify the indexer of a change in the data would be sufficient.

Cache 244

Cache Database Servers Performance 244