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.
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.
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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.
Dynatrace
MAY 15, 2020
Dynatrace news. Introduction. For Federal, State and Local agencies to take full advantage of the agility and responsiveness of a DevOps approach to the software lifecycle, Security must also play an integral role across lifecycle stages. Modern DevOps permits high velocity development cycles resulting in weekly, daily, or even hourly software releases.
The Netflix TechBlog
MAY 26, 2020
How Netflix is able to enrich VPC Flow Logs at Hyper Scale to provide Network Insight By Hariharan Ananthakrishnan and Angela Ho The Cloud Network Infrastructure that Netflix utilizes today is a large distributed ecosystem that consists of specialized functional tiers and services such as DirectConnect, VPC Peering, Transit Gateways, NAT Gateways, etc.
SQL Performance
MAY 13, 2020
Last month I provided a background to table expressions in T-SQL. I explained the context from relational theory and the SQL standard. I explained how a table in SQL is an attempt to represent a relation from relational theory. I also explained that a relational expression is an expression operating on one or more relations as inputs and resulting in a relation.
High Scalability
MAY 11, 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.
Technology Performance Pulse brings together the best content for technology performance professionals from the widest variety of industry thought leaders.
Scalegrid
MAY 22, 2020
MySQL does not limit the number of slaves that you can connect to the master server in a replication topology. However, as the number of slaves increases, they will have a toll on the master resources because the binary logs will need to be served to different slaves working at different speeds. If the data churn on the master is high, the serving of binary logs alone could saturate the network interface of the master.
Dynatrace
MAY 20, 2020
Dynatrace news. Dynatrace collects a huge number of metrics for each OneAgent-monitored host in your environment. Depending on the types of technologies you’re running on individual hosts, the average number of metrics is about 500 per computational node. Besides all the metrics that originate from your hosts, Dynatrace also collects all the important key performance metrics for services and real-user monitored applications as well as cloud platform metrics from AWS, Azure, and Cloud Foundry.
O'Reilly
MAY 19, 2020
To continue learning and to get ahead with your career, check out O’Reilly Learning with a free trial. Live online training, videos, books, certification prep, and more, from O’Reilly and our partner publishers. O’Reilly Learning > We wanted to discover what our readers were doing with cloud, microservices, and other critical infrastructure and operations technologies.
TechBeacon Testing
MAY 18, 2020
One major roadblock that prevents teams from successfully maturing their performance efforts is a lack of training. Sometimes, just knowing where to start can be a challenge.
High Scalability
MAY 14, 2020
Hey, it's HighScalability time! LOL. Who knew a birthday service could lead to an existential crisis? Do you like this sort of Stuff? Without your support on Patreon this kind of Stuff can't happen. You are that important to the fate of the smart and thoughtful world. Know someone who wants to understand the cloud? I wrote Explain the Cloud Like I'm 10 just for them.
DZone
MAY 18, 2020
Without a doubt, automated browser testing has transformed the way software development works. If it wasn’t for Selenium, we wouldn’t be able to use such a wide array of bug-free web apps as we do. But sometimes, even the IT sector misunderstands the term automation. Most people assume that the computer is going to accomplish all the testing for them!
The Netflix TechBlog
MAY 27, 2020
Keeping Customers Streaming?—?The Centralized Site Reliability Practice at Netflix By Hank Jacobs , Senior Site Reliability Engineer on CORE We’re privileged to be in the business of bringing joy to our customers at Netflix. Whether it’s a compelling new series or an innovative product feature, we strive to provide a best-in-class service that people love and can enjoy anytime, anywhere.
Dynatrace
MAY 6, 2020
Dynatrace news. Since the start of COVID -19, o rganizations have adapted to a new normal, shifting employees to work-from-home and initiating more remote servicing for customers. As we continue to adapt, Biz/Dev/Ops teams are under intense pressure as organizations turn to apps and the cloud to transact business and keep employees productive and customers satisfied. .
Tim Kadlec
MAY 21, 2020
I’ve wanted to give instant.page a proper try out on my site for a while now. It’s a pretty clever approach. The script watches for when someone hovers over a link and then, when they do, uses the prefetch resource hint to get started fetching that page before the click event even occurs. I like the idea, in theory, quite a bit. I also like the implementation.
SQL Shack
MAY 22, 2020
In this article, we will talk about SQL interview questions and answers that can be asked in the second-round technical stage. These interview questions are based on real-life experiences. Therefore, it can be a very useful source when preparing for the second round of SQL technical interviews. Many companies conduct a technical interview to evaluate […].
High Scalability
MAY 4, 2020
This is the second part of my interview with Alex DeBrie on his new insta-classic: The DynamoDB Book. To read the first part of the interview please mosey on over to The DynamoDB Book: An Interview With Alex DeBrie On His New Book. Go ahead. Take your time. It's worth it. Quick Fire Round.
DZone
MAY 29, 2020
In this tutorial, we will understand how to design SOAP and REST services using Neoload to validate the performance of web services. Designing SOAP request in Neoload. Step 1: Create New Project (Go to File -> Click on New -> Enter Project Name -> Click Finish).
Kovair
MAY 25, 2020
Integrating Security Testing within development and the operations teams are becoming the new norm, but this migration needs newer thinking, with newer processes, methods and.
Dynatrace
MAY 28, 2020
Dynatrace news. In this blog, I will be going through a step-by-step guide on how to automate SRE-driven performance engineering. You may have seen over the past few months we have been extensively promoting Service Level Indicators (SLIs) and Service Level Objectives (SLOs) as part of our Open Source project Keptn. Keptn uses SLO definitions to automatically configure Dynatrace or Prometheus alerting rules.
Simform
MAY 8, 2020
In past years, our development team has built a myriad of react applications that have been small to large in project size and simple to complex in nature. Much of our learnings in those years have come from facing challenges during the architecture implementation, dealing with inefficiencies, and researching best practices. The post React Architecture Best Practices and Tips from Community Experts appeared first on Insights on Latest Technologies - Simform Blog.
TechBeacon Testing
MAY 4, 2020
Security is often the black sheep of testing. At many organizations, functional testing has continuous support and funding throughout the lifecycle of the application, but when the focus shifts to security, there is usually only a scan before the release.
High Scalability
MAY 12, 2020
Who's Hiring? InterviewCamp.io has hours of system design content. They also do live system design discussions every week. They break down interview prep into fundamental building blocks. Try out their platform. Scrapinghub is hiring a Senior Software Engineer (Big Data/AI). You will be designing and implementing distributed systems : large-scale web crawling platform, integrating Deep Learning based web data extraction components, working on queue algorithms, large datasets, creating a developm
DZone
MAY 26, 2020
While the term reactive architecture has been around for a long time, only relatively recently has it been recognized by the industry and hit mainstream adoption. And the goal of this article is to analyze what reactive really is and why to adopt it. Its core meaning has been formalized with the creation of the Reactive Manifesto2 in 2013, when Jonas Bonér collected some of the brightest minds in the distributed and high-performance computing industry – Dave Farley, Roland Kuhn, and Marti
Speed Curve
MAY 11, 2020
Google recently announced an initiative called 'Web Vitals', which focuses on three performance metrics they consider essential for improving the user experience: Largest Contentful Paint (LCP). First Input Delay (FID). Cumulative Layout Shift (CLS). With the exception of FID, all of these metrics are available in both LUX (our RUM tool) and Synthetic.
Dynatrace
MAY 12, 2020
Dynatrace news. Dashboards are an important tool for effectively monitoring diverse IT ecosystems and for reporting your key performance indicators. But the more components you monitor and the more reports you build based on those insights, the harder it becomes to maintain oversight over the number of dashboards needed to perform all these tasks. Dynatrace helps you with this in a few ways.
SQL Shack
MAY 28, 2020
In this article, we will explore Composite Index SQL Server and key order impacts on it. We will also view SQL Server update statistics to determine an optimized execution plan of the Compositive index. Introduction SQL Server indexes are a vital factor in query performance and overall system performance. We use clustered and non-clustered indexes […].
TechBeacon Testing
MAY 26, 2020
Companies are increasingly recognizing the value of performance engineering, which goes well beyond performance testing. These organizations now require the capability to fix performance issues whenever and wherever they exist—and they're willing to pay a premium for those skills. That’s why many performance testers are stepping up their game.
High Scalability
MAY 26, 2020
Who's Hiring? InterviewCamp.io has hours of system design content. They also do live system design discussions every week. They break down interview prep into fundamental building blocks. Try out their platform. Scrapinghub is hiring a Senior Software Engineer (Big Data/AI). You will be designing and implementing distributed systems : large-scale web crawling platform, integrating Deep Learning based web data extraction components, working on queue algorithms, large datasets, creating a developm
DZone
MAY 19, 2020
When a software program or an application does not work the way it is created or designed to perform, it is called a software bug. In most cases, these errors are caused by developers or designers. The software testing team uses bug tracking software's to keep a track of bugs and to report them as the program is being tested. It is estimated that software developers make 100-150 errors for every thousand lines of code.
Dotcom-Montior
MAY 21, 2020
The complexity of an application’s digital architecture is increasing dramatically every day. In an era of cloud infrastructure, the goal is to integrate all your web services into one place: CDN, DNS, third-party API services, QA tools, analytics tools, and any other component you can think of, are working with each other to make your services function.
Dynatrace
MAY 7, 2020
Dynatrace news. Third party APIs have become as essential to our software stack as your own code or the run-times your code runs on. If these 3 rd parties become problematic, it will impact your software and users, causing complaints about your services not working as expected. That is why you must treat monitoring of these 3 rd party APIs with the same priority as your own code or platforms your code runs on, using something like Dynatrace RUM to do so.
Dareboost
MAY 4, 2020
Loading a web page requires fetching a whole set of resources which collectively allow the page to be displayed and interacted with. To increase the user’s perception of speed, you may need to influence the order in which these resources are fetched and executed. And that’s where preload and Resource Hints come in.
KeyCDN
MAY 6, 2020
The feature WebP caching and Brotli compression is now also available for Push Zones! WebP caching is automatically active once Image Processing is enabled and will transform images to WebP if the client supports the format. Image hosting in combination with WebP has never been easier. Brotli compression is now also enabled for all Push Zones by default which results in great performance improvements.
Sutter's Mill
MAY 7, 2020
Next week, I’m honored to be part of DevAroundTheSun , a live 24-hour global event for COVID-19 relief that starts on May 12 at 12:00 UTC. It’s like LiveAid or Lady Gaga’s recent One World: #TogetherAtHome , but for developers. You can watch on Twitch and YouTube, and all the talks are relatively short at 25 minutes… think TED talk style and length, and hopefully similar quality in content even though the production is a little different since we have to present our talks
DZone
MAY 18, 2020
The most popular design pattern used in web UI test codebases is the Page Object Model (POM) design pattern. This pattern suggests modeling a class to represent a single page of your system under test. Using this model, the class would contain properties that represent the elements of the UI page and methods that interact with these elements. Given this is the Login Page of our application, let’s discuss tips for building a class using POM.
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