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

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 Latency Systems Processing 104

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

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 279

Traffic Metrics Systems Strategy 279

The Morning Paper

SEPTEMBER 1, 2019

At the end of the day, you get the dual benefit of higher throughput and lower latency (as compared to coordination-based approaches) coupled with knowing that there isn’t some nasty invariant-violating concurrency bug waiting to bite you (so long as you specified your invariants and operation effects correctly of course!).

Database 42

Database Latency Games Design 42

The Netflix TechBlog

JUNE 14, 2023

And we definitely couldn’t replay test non-functional requirements like caching and logging user interaction. To determine customer impact, we could compare various metrics such as error rates, latencies, and time to render. The AB experiment results hinted that GraphQL’s correctness was not up to par with the legacy system.

Traffic 353

Traffic Latency Cache Metrics 353

All Things Distributed

DECEMBER 5, 2010

Werner Vogels weblog on building scalable and robust distributed systems. I am very excited that today we have launched Amazon Route 53, a high-performance and highly-available Domain Name System (DNS) service. Naming is one of the fundamental concepts in Distributed Systems. Authoritative servers hold the definitive mappings.

Cloud 117

Cloud Internet Internet AWS 117

KeyCDN

SEPTEMBER 12, 2019

This can be a problem in a lot of content management systems such as WordPress or Magento, because theme developers tend to scale images down in responsive themes using CSS. The main reason is because it decreases the latency to the user where they are located by serving your images from a POP physically closest to them.

Social Media 106

Social Media Media Google Website 106

Dotcom-Montior

NOVEMBER 24, 2021

Web developers or administrators did not have to worry or even consider the complexity of distributed systems of today. Great, your system was ready to be deployed. Once the system was deployed, to ensure everything was running smoothly, it only took a couple of simple checks to verify. What is a Distributed System?

Systems 74

Systems Monitoring Hardware Network 74

The Netflix TechBlog

JANUARY 10, 2024

Since then, the video pipeline has undergone substantial improvements and broad expansions: Starting with Standard Dynamic Range (SDR) at Standard-Definitions , we expanded the encoding pipeline to 4K and High Dynamic Range (HDR) which enabled support for our premium offering. This introductory blog focuses on an overview of our journey.

Processing 229

Processing Media Latency Innovation 229

Abhishek Tiwari

DECEMBER 27, 2017

A good example will be something like Pachyderm [8] [9] - a relatively young project which implements a distributed Pachyderm File System (PFS) and a data-aware scheduler Pachyderm Pipeline System (PPS) on top of Kubernetes. Lastly, I also think there is definitely a place for new Kubernetes native big data frameworks.

Big Data 63

Big Data Storage Benchmarking Hardware 63

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 253

Big Data Government Analytics Processing 253

Speed Curve

JUNE 18, 2019

Here's a short (and definitely not exhaustive) list of things that you may want to consider when running performance tests on an integration environment: Caches may need to be warmed up beforehand. If system resources are a constraint, it may be better to run performance testing in isolation.

Performance Testing 49

Performance Testing Testing Performance Cache 49

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 221

Architecture Latency Servers Website 221

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 131

AWS IoT Virtualization Infrastructure 131

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 203

Storage Latency Efficiency Data Engineering 203

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 219

Monitoring Metrics DevOps Scalability 219

The Agile Manager

JULY 9, 2010

With stability comes confidence in the financial system (a confidence underwritten by federal deposit insurance), and that confidence is a pillar of a strong society. They are, by definition, far more risk prone. Putting explicitly risk-averse capital at high risk undermines the stability of the financial system.

Retail 45

Retail Technology Technology Small Business 45

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 199

Open Source Monitoring Google Systems 199

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 177

Monitoring Latency Metrics Availability 177

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 207

DevOps AWS Tuning Infrastructure 207

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. Those days are long gone.

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. Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

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

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 142

Engineering Scalability Architecture Innovation 142

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

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 137

Java Best Practices Metrics Azure 137

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 210

Monitoring Tuning Traffic Metrics 210

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 74

Performance Cache Traffic Metrics 74

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 165

Engineering Storage Latency Entertainment 165

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 167

Database Lambda AWS IoT 167

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 125

Traffic Scalability Database Servers 125

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

The Agile Manager

AUGUST 23, 2007

When it all comes together, the overall benefit of the resulting system can be incredible, such as an increase in life expectancy. IT reward systems are also often based on individual performance tied to granular and highly focused statements of accomplishment. As Thomas Teal wrote succinctly , “Good management works miracles.”

Innovation 40

Innovation Technology Technology Latency 40

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

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 166

Latency Architecture AWS Open Source 166