High Scalability
MAY 14, 2020
Zoom scaled from 20 million to 300 million users virtually over night. What's incredible is from the outside they've shown little in the way of apparent growing pains, though on the inside it's a good bet a lot of craziness is going on. Sure, Zoom has made some design decisions that made sense as a small spunky startup that don't make a lot of sense as a defacto standard, but that's to be expected.
The Netflix TechBlog
NOVEMBER 9, 2020
Netflix is known for its loosely coupled and highly scalable microservice architecture. Independent services allow for evolving at different paces and scaling independently. Yet they add complexity for use cases that span multiple services. Rather than exposing 100s of microservices to UI developers, Netflix offers a unified API aggregation layer at the edge.
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DZone
MARCH 5, 2020
As a Java Developer, we need to cover a lot of scenarios to ensure the quality of our software and catch bugs as soon as possible when introducing a new code. For 99% of all my use cases AssertJ, Junit, Mockito, and Wiremock are sufficient enough do cover the test cases. But for the other use cases, like unit testing info, debug or warn log messages, these frameworks don't help you out.
Scalegrid
APRIL 28, 2020
If you’re hosting your databases in the cloud, choosing the right cloud service provider is a significant decision to make for your long-term hosting costs. This is especially apparent in today’s world where organizations are doing whatever they can to optimize and reduce their costs. Over the last few weeks, we have been inundated with requests from SMB customers looking to improve the ROI on their database hosting.
CSS Wizardry
NOVEMBER 3, 2020
A couple of years ago, my first few days on a new web performance project were always slow going. So many false starts, tedious workflows, and a complete lack of efficiency really made it difficult for me to find momentum. All through no fault of the client or the project, but through huge flaws in my own approach. In a bid to address this, I introduced a new tool into my arsenal so that I could hit the ground running much faster, and get answers to my clients much sooner.
Dynatrace
OCTOBER 8, 2020
Dynatrace news. We’ve worked closely with our partner AWS to deliver a complete, end-to-end picture of your cloud environment that includes monitoring support for all AWS services. Now Dynatrace is pleased to announce another industry first: automatic, end-to-end observability for AWS Lambda functions in Node.js and Python via traces. By leveraging the AWS Lambda Extensions API , Dynatrace brings the unique value of its Davis AI-engine for fully automatic root cause analysis to AWS Lambda.
Alex Podelko
SEPTEMBER 8, 2020
Some time ago Federico Toledo published Performance Testing with Open Source Tools- Busting The Myths. While Federico definitely has good points there, there is some truth in these myths too. Otherwise we wouldn’t see so many commercial tools built on the top of open source including BlazeMeter (it is ironic that the article is posted on the BlazeMeter site), Flood, and OctoPerf.
Technology Performance Pulse brings together the best content for technology performance professionals from the widest variety of industry thought leaders.
The Netflix TechBlog
DECEMBER 14, 2020
Life of a Netflix Partner Engineer?—?The case of the extra 40 ms By: John Blair , Netflix Partner Engineering The Netflix application runs on hundreds of smart TVs, streaming sticks and pay TV set top boxes. The role of a Partner Engineer at Netflix is to help device manufacturers launch the Netflix application on their devices. In this article we talk about one particularly difficult issue that blocked the launch of a device in Europe.
DZone
JUNE 5, 2020
Every day is a challenge for newbie automation testers! Just when you learned how to perform automated browser testing on a single window, you now come across the challenge of handling multiple windows. Isn’t this a nightmare! Well, no need to worry, I've got you covered. While performing automated browser testing, at times you might end up in situations where you would need to handle multiple windows and tabs.
DZone
SEPTEMBER 21, 2020
Want your Go programs to run faster? Optimizing string comparisons in Go can improve your application’s response time and help scalability. Comparing two strings to see if they’re equal takes processing power, but not all comparisons are the same. In a previous article, we looked at How to compare strings in Go and did some benchmarking. We’re going to expand on that here.
DZone
AUGUST 12, 2020
Selenium Framework interacts with the web browser via the Selenium WebDriver. It does so with the help of certain commands to automate browser actions such as open, close, or maximize the browser window. Also, you can handle different web elements or drop down elements browser to perform Selenium test automation. Different programming languages such as Python, Java, C#, etc uses an interface to interact with the browser.
DZone
JANUARY 31, 2020
C10K problem is a term that stands for ten thousand concurrently handling connections. To achieve this, we often need to make changes in the settings of created network sockets and default settings of Linux kernel, monitor the usage of the TCP Send/Receive Buffers and Queues and, in particular, adjust our application to be a good candidate for solving this problem.
The Netflix TechBlog
MARCH 10, 2020
by Damir Svrtan and Sergii Makagon As the production of Netflix Originals grows each year, so does our need to build apps that enable efficiency throughout the entire creative process. Our wider Studio Engineering Organization has built more than 30 apps that help content progress from pitch (aka screenplay) to playback: ranging from script content acquisition, deal negotiations and vendor management to scheduling, streamlining production workflows, and so on.
DZone
APRIL 13, 2020
In a previous post , we explored the PIT Mutation Testing Maven plugin. This time, we will take a look at how we can integrate the results with SonarQube, our favorite software analysis tool. Introduction. Before reading this post, it is advised to revise our previous post about Mutation Testing. In short, with Mutation Testing faults (or mutants) are introduced into your code and consequently, your tests are run again.
DZone
SEPTEMBER 21, 2020
Chaos Mesh is a cloud-native chaos testing platform that orchestrates chaos in Kubernetes environments. While it's well-received in the community with its rich fault injection types and easy-to-use dashboard, it was difficult to use Chaos Mesh with end-to-end testing or the continuous integration (CI) process. As a result, problems introduced during system development could not be discovered before the release.
The Netflix TechBlog
AUGUST 28, 2020
by Aditya Mavlankar , Liwei Guo , Anush Moorthy and Anne Aaron Netflix has an ever-expanding collection of titles which customers can enjoy in 4K resolution with a suitable device and subscription plan. Netflix creates premium bitstreams for those titles in addition to the catalog-wide 8-bit stream profiles¹. Premium features comprise a title-dependent combination of 10-bit bit-depth, 4K resolution, high frame rate (HFR) and high dynamic range (HDR) and pave the way for an extraordinary viewing
DZone
AUGUST 12, 2020
You’d hardly find a website these days without alerts and pop-ups! The alert boxes warn you whenever you perform a wrong action or to enter details to access a website. These alert boxes stop you from performing any other browser functions till the alert is resolved. This is why it becomes important that you handle them in your Selenium test automation scripts.
DZone
MAY 27, 2020
Selenium is an open-source automation framework initially introduced in 2004. Using this framework, we can validate web applications across different browsers and platforms. Java, C#, Python are mostly used for developing test scripts. Testing performed using Selenium are generally referred to as Selenium testing. The initial version released is just a single tool, but the latest version is now not only a tool — it’s a software suite with a pack of IDE, RC, and WebDriver.
DZone
AUGUST 14, 2020
Python might not have bright years in the past years (which is mainly launch in the year 1991) but it has seen a continuous and amazing trend of growth in the 21st century. This stack overflow graph of major programming languages’ growth exclusively depicts the steady progress of the PYTHON! The growth rate of python was not something easy to achieve.
Scalegrid
JULY 17, 2020
JSON stands for JavaScript Object Notation. It is an open standard format which organizes data into key/value pairs and arrays detailed in RFC 7159. JSON is the most common format used by web services to exchange data, store documents, unstructured data, etc. In this post, we are going to show you tips and techniques on how to effectively store and index JSON data in PostgreSQL.
Scalegrid
MAY 13, 2020
Greenplum Database is a massively parallel processing (MPP) SQL database that is built and based on PostgreSQL. It can scale towards a multi-petabyte level data workload without a single issue, and it allows access to a cluster of powerful servers that will work together within a single SQL interface where you can view all of the data. In this blog post, we explain what Greenplum is, and break down the Greenplum architecture, advantages, major use cases, and how to get started.
DZone
JUNE 4, 2020
In recent years, you’d hardly see an organization who had not transitioned to automation testing. After All, with quick feedback on new features, who’d want to miss out on Selenium testing. Even then, a few testers complain of the automation tests being unstable and unreliable. Trust me, that’s not true! A lot of the time the reason for your unstable tests is not following the right practices for Selenium test automation.
DZone
JUNE 12, 2020
According to netmarketshare , Google Chrome accounts for 67% of the browser market share. It is the choice of the majority of users and it’s popularity continues to rise. This is why, as an automation tester, it is important that you perform automated browser testing on Chrome browser. ChromeDriver is used along with Selenium to automate tests on the Chrome browser.
DZone
AUGUST 13, 2020
The global gaming industry is expected to reach more than $300 billion by 2025 with the growth of revolutionary offerings, like cloud gaming and mobile gaming, according to a new report from GlobalData. With the constant growth and expansion of the gaming industry worldwide, top leaders in this industry like AltSpaceVR and BigScreenVR, are accelerating a virtual future probably faster than many wait for.
DZone
JULY 20, 2020
A lot of times while performing Selenium test automation, you’ll come across certain scenarios when your test fails because the webpage or the web element takes some time to load completely. In such scenarios, the best approach is to wait for the page or the web elements to load completely to avoid any errors due to timeout. These errors can be easily resolved if you know how to handle timeouts in Protractor with Selenium, as they help to set an interval of time before the next action is carried
High Scalability
SEPTEMBER 18, 2020
Hey, it's HighScalability time! I can't wait for the duel. Just don't shoot into the air. Do you like this sort of Stuff? Without your support on Patreon this kind of Stuff won't happen. Know someone who could benefit from becoming one with the cloud? Of course you do. I wrote Explain the Cloud Like I'm 10 just for them. On Amazon it has 167 mostly 5 star reviews.
DZone
MAY 18, 2020
Do you like to stay in the know about the most up-and-coming software testing tools? These days our team has been buzzing about plenty of tools we’ve come across, hosting tutorials and internal chats to share knowledge about them with one another and we figured we’d share them with you in this article!
DZone
AUGUST 14, 2020
As programmers, we often find ourselves asking the same two questions over and over again: How much time does this algorithm need to complete? How much space does this algorithm need for computing? To put it in other words, in computer programming, there are often multiple ways to solve a problem, so.
DZone
APRIL 9, 2020
Cyberattacks are rising decade per decade, and this decade is no different. It is no surprise that web attacks rose by 56% in the last year alone, reports Norton's 2019 Internet Security Threat Report. It provides an insightful example: " Cybercriminals load malicious code onto retailers' websites to steal shoppers' credit card details, with 4,800+ unique websites compromised on average every month.
DZone
JUNE 19, 2020
At times, while performing automated browser testing, you often have to deal with elements, which reveal only after you hover on the menu or after you click on them. In such cases, you can opt for using the action class for keyboard and mouse actions in Selenium Protractor. With the action class, you can automate representation of mouse activities, such as a mouse clicking, mouse hovering, etc.
Dynatrace
AUGUST 26, 2020
Dynatrace news. Today, the AI Breakthrough Awards announced its 2020 winners , recognizing the leading AI innovators and solutions. We are proud to s hare Dynatrace has been named the winner in the “ Best Overall AI-based Analytics Company ” category, recognized for our innovation and the business-driving impact of our AI engine, Davis. .
DZone
JUNE 17, 2020
Does every performance engineer need to know about how memory in Java works? To completely fine-tune the java performance bottlenecks for high performance my answer is YES. Java memory management is a significant challenge for every performance engineer and Java developer, and a skill that needs to be acquired to have Java applications properly tuned.
DZone
FEBRUARY 14, 2020
We’ve seen many of the technological advances described in the Star Trek milieu become reality over the last 50 years, from personal communication devices and instant translators to GMOs, medical robots, 3D printing and weapons that stun. But, ah yes, the matter transporter. By far, the invention that captivates us most.
CSS Wizardry
APRIL 22, 2020
One of the more fundamental rules of building fast websites is to optimise your assets, and where text content such as HTML, CSS, and JS are concerned, we’re talking about compression. The de facto text-compression of the web is Gzip, with around 80% of compressed responses favouring that algorithm, and the remaining 20% use the much newer Brotli. Of course, this total of 100% only measures compressible responses that actually were compressed—there are still many millions of resources that could
Dynatrace
DECEMBER 8, 2020
Dynatrace news. In our increasingly digital world, the speed of innovation is key to business success. Cloud-native technologies, including Kubernetes and OpenShift, help organizations accelerate innovation. Open source has also become a fundamental building block of the entire cloud-native stack. While leveraging cloud-native platforms, open-source and third-party libraries accelerate time to value significantly, it also creates new challenges for application security.
The Netflix TechBlog
SEPTEMBER 2, 2020
Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. by Elizabeth Carretto Everyone loves Unsolved Mysteries. There’s always someone who seems like the surefire culprit. There’s a clear motive, the perfect opportunity, and an incriminating footprint left behind.
Scalegrid
AUGUST 26, 2020
Microsoft Azure is one of the most popular cloud providers in the world, and a natural fit for database hosting on applications leveraging Microsoft across their infrastructure. MySQL is the number one open source database that’s commonly hosted through Azure instances. While Microsoft offers their own Azure Database product, there are other alternatives available that may be able to help you improve your MySQL performance.
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