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.

Traffic 279

Traffic Metrics Systems Strategy 279

CSS Wizardry

MARCH 3, 2019

This includes CDNs, proxy servers, and the like. Once the 60 seconds is up, the browser will head back to the server to revalidate the file. It means ‘do no t serve a copy from cache until you’ve revalidated it with the server and the server said you can use the cached copy’. public and private. Cache-Control: no-cache.

Cache 264

Cache Latency Strategy Servers 264

The Netflix TechBlog

AUGUST 22, 2019

Once the instance was available, the engineer would use a remote administration tool like RDP to login to the instance to install software and customize settings. The configuration file, referenced scripts, and artifact dependency definitions all live in an internal git repository.

DevOps 207

DevOps AWS Tuning Infrastructure 207

Smashing Magazine

AUGUST 3, 2023

Core Web Vital metrics definitions. Time To First Byte (TTFB) This is the time it takes for the first piece of information from the server to reach the user’s browser. You need to beware of slow server response times, particularly render-blocking JavaScript or CSS, or slow network connections, all of which can negatively affect FCP.

Performance 74

Performance Cache Traffic Metrics 74

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. At the same time, metrics on a dashboard are showing resource exhaustion issues, such as lack of available memory.

Monitoring 220

Monitoring Metrics DevOps Scalability 220

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible.Â

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible.

Architecture 52

Architecture Performance Internet Internet 52

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. Redirects are often pretty light in terms of the latency that they add to a website, but they are an easy first thing to check, and they can generally be removed with little effort. I definitely have some assets that are doing nothing but wasting time and space.

Cache 92

Cache Social Media Media Website 92

Percona

MARCH 20, 2023

In short, each cluster is, in reality, a single database with high availability and other functionalities built in. Let us take a look also the latency: Here the situation starts to be a little bit more complicated. MySQL Router is the one that has the higher latency no matter what. Anyhow, we are here to talk about Proxies.

Games 124

Games Latency Traffic Cache 124

KeyCDN

FEBRUARY 4, 2021

This query is performed by a Domain Name Server (DNS server) or servers nearby that have been assigned responsibility for that hostname. You can think of a DNS server as a phone book for the internet. A DNS server maintains a directory of domain names and translates them to IPs. So DNS services definitely go down!

Cache 134

Cache Website Internet Internet 134

The Netflix TechBlog

FEBRUARY 9, 2021

Plans & Offers Definitions Let’s define what a plan and an offer is at Netflix. The action corresponds to the button on the page and the withFields specify which fields the server expects to have sent back when the button is clicked. This means we need to distinguish between availability of SKUs and eligibility for SKUs.

Engineering 142

Engineering Scalability Architecture Innovation 142

Percona

MAY 15, 2023

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. In shard-nothing, each shard can live in a totally separate logical schema instance / physical database server/data center/continent. The POC Why this POC?

Traffic 126

Traffic Scalability Database Servers 126

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 105

Performance Network Latency Servers 105

Percona

MAY 2, 2023

During the logical backups, using client API, the data gets read from the server and returned back to the same API, which will be serialized and written into respective “ bson”, “ json” or “ csv” backup files on disk depending upon the type of backup utilities used. Records backup progress logging.

Best Practices 52

Best Practices Database Storage Servers 52

Dynatrace

JULY 10, 2019

OneAgents are optimized to send data to the Dynatrace servers with the smallest possible impact, querying the metrics every minute, and the data is a first-class citizen for the Dynatrace AI root-cause analysis. Top tip: An easy way to do this is by creating a custom chart and looking for the metric there.

Java 137

Java Best Practices Metrics Azure 137

Smashing Magazine

AUGUST 10, 2023

The tooling to get a report with details from the time it takes to establish a server connection to the time it takes for the full page to render is out there. Even with all of the available tools at my disposal, I still find myself reaching for several of them. Lighthouse results. Real usage data would be better, of course.

Speed 81

Speed Monitoring Testing Network 81

Dotcom-Montior

NOVEMBER 24, 2021

Do you have a web server? Is the web server running? The last item to check was if the web server was able to talk to the database? By definition, a distributed system is any system that comprises of multiple components on variety of machines that work together to appear as a single, organized system. Peer-to-Peer.

Systems 74

Systems Monitoring Hardware Network 74

CSS - Tricks

MARCH 16, 2020

Google Lighthouse is one of the best-automated tools available on a web developer's utility belt. If not, then check your Node installation is working and you’re definitely in the correct project directory. These are: Time to first byte - Time To First Byte identifies the time at which your server sends a response. Hello world.

Google 82

Google Latency Website Metrics 82

SQL Server According to Bob

JANUARY 11, 2020

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. This will help you increase system performance and avoid I/O environment errors.

Servers 40

Servers Cache Media Hardware 40

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. Azure digital twins serve a different purpose.

IoT 52

IoT Azure Analytics Serverless 52

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. The graph has two requirements. Search Indexer.

Cache 240

Cache Database Servers Latency 240

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. Websites would magically become 50% faster with the flip of a switch!

Transportation 145

Transportation Internet Internet Network 145

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. The graph has two requirements. Search Indexer.

Cache 112

Cache Database Servers Latency 112

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. The graph has two requirements. Search Indexer.

Cache 100

Cache Database Servers Latency 100

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). This difference by itself doesn’t do all that much (it mainly reduces the overhead on the server-side), but it leads to most of the following points. Server Sharding and Connection Coalescing.

Network 104

Network Servers Cache Traffic 104

Alex Russell

OCTOBER 22, 2017

Late-loading JavaScript can cause “server-side rendered” pages to fail in infuriating ways. The server sends it as a stream of bytes and when the browser encounters each of the sub-resources referenced in the document, it requests them. Any DOM or UI created in JS is not available for use until the script runs.

Performance 68

Performance Benchmarking Network Mobile 68

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

Alex Russell

MARCH 6, 2021

Modern network performance and availability. Sadly, data on latency is harder to get, even from Google's perch, so progress there is somewhat more difficult to judge. Here begins our 2021 adventure. Hard Reset. To update our global baseline from 2017, we want to update our priors on a few dimensions: The evolved device landscape.

Performance 124

Performance Network Cache Metrics 124

O'Reilly Software

MARCH 7, 2018

Today, data needs to be available at all times, serving its users—both humans and computer systems—across all time zones, continuously, in close to real time. 11] The example could most definitely be evolved to support URIs. Welcome to a new world of data-driven systems. Furthermore, the deployment tooling was not ready for SOA.

Transportation 72

Transportation Java Programming Architecture 72

Smashing Magazine

JANUARY 11, 2021

In the end, it’s not the load events or server response times that define the experience, but the perception of how snappy the interface feels. It used to provide an insight into how quickly the server outputs any data. This knowledge will give you the best optimization target for ongoing efforts. What does it mean?

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? It used to provide an insight into how quickly the server outputs any data. What does it mean?

Performance 145

Performance Cache Network Metrics 145

Dynatrace

MARCH 17, 2021

A single OneAgent instance can handle the monitoring of many types of entities, including servers, applications, services, databases, and more. You want to optimize your Citrix landscape with insights into user load and screen latency per server? Dynatrace Extensions 2.0 Why use Extensions. So whether you want to….

Metrics 169

Metrics Monitoring Network Technology 169

Smashing Magazine

JANUARY 7, 2019

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Long FMP usually indicates JavaScript blocking the main thread, but could be related to back-end/server issues as well.

Performance 103

Performance Cache Metrics Network 103