Dynatrace

FEBRUARY 27, 2025

In fact, observability is essential for shaping how we design smarter, more resilient systems for the future. As an open-source project, OpenTelemetry sets standards for telemetry data sets and works with a wide range of systems and platforms to collect and export telemetry data to backend systems. OpenTelemetry Collector 1.0

Tuning 310

Tuning Open Source Innovation Monitoring 310

DZone

AUGUST 29, 2021

In this blog post, we’ll examine one such case where we use the Sentry JavaScript SDK to instrument Jest (which runs our frontend test suite) and how we addressed the issues that we found. This is useful to get a general sense of the health of the system, however, it does not help when doing a deeper dive into why a system is slow.

Testing 335

Testing Performance Testing Metrics Systems 335

O'Reilly

MARCH 25, 2025

The system is inconsistent, slow, hallucinatingand that amazing demo starts collecting digital dust. Weve seen this across dozens of companies, and the teams that break out of this trap all adopt some version of Evaluation-Driven Development (EDD), where testing, monitoring, and evaluation drive every decision from the start.

Systems 69

Systems Development Tuning Monitoring 69

DZone

JANUARY 4, 2022

Over the years, the whole idea of software testing has evolved. And the evolution not only has called for modern testing strategies and tools but a detailed-oriented process with the inclusion of test methodologies. This is why most newbies entering the industry tend to find automated functional testing a complex operation.

Software 284

Software Software Testing Strategy 284

DZone

APRIL 12, 2022

Now was a time when businesses were in critical need of cross-browser testing and responsive testing to stay ahead of the competition. Cross-browser testing focuses on the website's overall functionality; responsive web testing verifies the look and feel of the web application. What Is Cross Browser Testing?

Testing 243

Testing Website Internet Internet 243

DZone

JUNE 17, 2022

Before we get into automation testing vs. manual testing, let's define testing. To begin, what exactly is testing? Testing is a method of evaluating a system to see if it meets the specified requirements.

Testing 246

Testing Systems 246

DZone

SEPTEMBER 8, 2022

Configuration testing plays a critical part in the development life cycle by specifying the quality and portability of software. It helps to understand whether a program can be used on any operating system other than the one for which it was designed. Let’s find out what is configuration testing with an example and how does it work?

Software 244

Software Software Testing Operating System 244

DZone

FEBRUARY 15, 2022

Functional and non-functional testing are the two types of software testing. There are various types of functional testing, that are as below: Unit Testing. Integration Testing. System Testing. Regression Testing. Smoke Testing. Sanity Testing. Acceptance Testing.

Testing 246

Testing Code Software Software 246

DZone

MARCH 17, 2022

End-to-end testing, or E2E testing, is a type of performance test go-through during the cycle of mobile app development. All of the functionalities of the product are tested from one end to another to ensure that the entire application flow functions without setbacks. What Are the Types of End-to-End Testing Methods?

Testing 242

Testing Mobile Performance Testing Systems 242

DZone

NOVEMBER 1, 2024

This $5 billion mistake could have been avoided with proper testing and quality assurance. As our digital world becomes increasingly complex and software evolves rapidly, ensuring high-quality and reliable systems becomes progressively more difficult. Therefore, it is crucial to have efficient testing strategies in place.

Software 100

Software Software Testing Strategy 100

DZone

AUGUST 6, 2021

To verify the quality of everything that is rendered on the cloud environment, Cloud testing was performed running manual or automation testing or both. The entire process of Cloud Testing is operated online with the help of the required infrastructure.

Cloud 264

Cloud Testing Internet Internet 264

DZone

AUGUST 12, 2021

Software Development goes through many phases like requirement gathering & analysis, communication, design, code building, testing, and release. Testing is an indispensable part of the SDLC and can be achieved either manually or automatically. What is Unit Testing?

Testing 246

Testing Mobile Design Software 246

Dynatrace

DECEMBER 8, 2022

They are similar to site reliability engineers (SREs) who focus on creating scalable, highly reliable software systems. Belgian engineer Patrick Debois coined the term “DevOps” in 2009 when he needed a Twitter hashtag for DevOpsDays, an agile systems administrators conference in Europe. Atlassian Jira.

DevOps 246

DevOps Engineering Testing Open Source 246

DZone

DECEMBER 27, 2023

As organizations increasingly embrace the microservices approach, the need for a resilient testing framework becomes important for the reliability, scalability , and security of these distributed systems. Resilience refers to the ability to withstand, recover from, or adapt to challenges, changes, or disruptions. What Is MRTF?

Testing 228

Testing Scalability Architecture Design 228

The Netflix TechBlog

MAY 4, 2023

Behind the scenes, a myriad of systems and services are involved in orchestrating the product experience. These backend systems are consistently being evolved and optimized to meet and exceed customer and product expectations. This approach has a handful of benefits. This technique facilitates validation on multiple fronts.

Traffic 347

Traffic Latency Tuning Systems 347

DZone

DECEMBER 21, 2021

What comes to your mind when you hear the term Black box, specifically concerning testing? Well, it is something that is not very common to listen to but remains an essential form of software testing. It is a software testing technique to examine the functioning of software from an external outlook without digging deeper into its code.

Testing 235

Testing Software Software Code 235

DZone

DECEMBER 17, 2021

Why Load Testing Matters in Nebula Graph? The load testing for the database needs to be conducted usually so that the impact on the system can be monitored in different scenarios, such as query language rule optimization, storage engine parameter adjustment, etc. The operating system in this article is the x86 CentOS 7.8.

Testing 240

Testing Operating System Storage Performance 240

Dynatrace

MARCH 25, 2025

White box testing The nicest thing about deploying UI changes to production is that you can immediately see the changes in action. You can see when a new version is deployed, test it to ensure everything works as expected, and youre done. Test data collection Accurate test data can mean life or death. Figure 3.

Benchmarking 147

Benchmarking Code Open Source Engineering 147

DZone

MARCH 9, 2023

If we want to test the configuration, we need to play log events in as if the system was really running, which means realistic logs at the right speed so we can make sure that our configuration prevents alerts or mail storms.

Monitoring 245

Monitoring Testing Open Source Speed 245

Dynatrace

OCTOBER 23, 2024

Shifting to customer-centric IT For observability data to be meaningful, it must connect the performance of IT systems to customer experience throughout their journey, across both digital and physical touchpoints. Act faster through expert help from Dynatrace Business Insights services.

Analytics 286

Analytics Logistics IoT Mobile 286

Dynatrace

JANUARY 5, 2022

This guest blog is authored by Raphael Pionke , DevOps Engineer at T-Systems MMS. Credits on content go to him and the work he has been doing around performance & resiliency testing automation. Our Application Performance Management (APM) and load test team at T-Systems MMS helps our customers reduce the risk of failed releases.

Testing 246

Testing Open Source Metrics Infrastructure 246

The Netflix TechBlog

JUNE 1, 2023

In this blog post, we’ll discuss the methods we used to ensure a successful launch, including: How we tested the system Netflix technologies involved Best practices we developed Realistic Test Traffic Netflix traffic ebbs and flows throughout the day in a sinusoidal pattern. Basic with ads was launched worldwide on November 3rd.

Traffic 349

Traffic Best Practices Systems Testing 349

Dynatrace

NOVEMBER 29, 2024

The Dynatrace SDL includes penetration testing, red teaming, continuous threat modeling and risk assessments, a public bug bounty program, and vulnerability scans. S3 buckets are configured to be encrypted with a bucket key stored in the AWS key management system (KMS). Each S3 bucket is assigned its own unique bucket key.

Storage 246

Storage AWS Azure Architecture 246

Dynatrace

APRIL 30, 2021

As organizations develop more applications and microservices, they are discovering they also need to run more performance tests in the same amount of time or less to meet service-level objectives (SLOs) that fulfill service-level agreements (SLAs). How can organizations address this process bottleneck and run more tests in less time?

Engineering 263

Engineering Testing Performance Performance Testing 263

DZone

JULY 22, 2021

There is no denial of the fact that using Quality Assured and tested ERP software enables an organization to have long-term efficiency with their operations. However, implementing a customized ERP solution into an already existing business needs one to ensure the quality of the technology.

Testing 264

Testing Strategy Technology Technology 264

The Netflix TechBlog

SEPTEMBER 22, 2021

Martin Tingley with Wenjing Zheng , Simon Ejdemyr , Stephanie Lane , and Colin McFarland This is the second post in a multi-part series on how Netflix uses A/B tests to inform decisions and continuously innovate on our products. An A/B test is a simple controlled experiment. Figure 2: A simple A/B test. Let’s say?—?this

Testing 246

Testing Entertainment Metrics Social Media 246

The Netflix TechBlog

NOVEMBER 12, 2024

Use Cases and Requirements At Netflix, our counting use cases include tracking millions of user interactions, monitoring how often specific features or experiences are shown to users, and counting multiple facets of data during A/B test experiments , among others. Clients can use this token to safely retry or hedge their requests.

Latency 251

Latency Cache Infrastructure Strategy 251

DZone

JULY 26, 2022

In QA and software testing world, a compatibility test is a kind of test performed to scrutinize whether the software or app is competent of running on multiple OSs, mobile devices, browsers, applications, network environments, and more. What Is the Compatibility Test?

Testing 246

Testing Hardware Mobile Operating System 246

DZone

APRIL 1, 2025

Modern distributed systems, like microservices and cloud-native architectures, are built to be scalable and reliable. Chaos engineering is a useful way to test and improve system resilience by intentionally creating controlled failures. However, their complexity can lead to unexpected failures.

Engineering 130

Engineering Virtualization Scalability Architecture 130

The Netflix TechBlog

DECEMBER 19, 2024

Many of these projects are under constant development by dedicated teams with their own business goals and development best practices, such as the system that supports our content decision makers , or the system that ranks which language subtitles are most valuable for a specific piece ofcontent. ' # settings.configuration.EXP_01.yaml

Best Practices 204

Best Practices Cache Metrics Code 204

DZone

NOVEMBER 29, 2022

With the rapidly increasing popularity and complexity of mobile apps, you need to make sure your app works as intended across various device models, operating systems, and browsers. In this article, we’ll provide best practices for selecting mobile devices to test, as well as our recommended devices to test on by region and business size.

Mobile 219

Mobile Testing Best Practices Operating System 219

The Netflix TechBlog

JUNE 14, 2023

The three strategies we will discuss today are AB Testing , Replay Testing, and Sticky Canaries. To launch Phase 1 safely, we used AB Testing. To launch Phase 2 safely, we used Replay Testing and Sticky Canaries. We knew we could test the same query with the same inputs and consistently expect the same results.

Traffic 357

Traffic Latency Metrics Cache 357

DZone

MARCH 24, 2025

Our "serverless" order processing system built on AWS Lambda and API Gateway was humming along, handling 1,000 transactions/minute. The post-mortem revealed the harsh truth: wed never tested failure scenarios. Then, disaster struck.

Lambda 147

Lambda Serverless AWS Engineering 147

DZone

JUNE 20, 2023

One crucial aspect of software development in SAFe is end-to-end testing. This article aims to explore the significance of end-to-end testing within the Scaled Agile Framework (SAFe) and its role in ensuring high-quality software delivery.

Testing 212

Testing Engineering Performance Testing Software 212

The Netflix TechBlog

JUNE 13, 2023

This is where large-scale system migrations come into play. Our previous blog post presented replay traffic testing — a crucial instrument in our toolkit that allows us to implement these transformations with precision and reliability. Canaries and sticky canaries are valuable tools in the system migration process.

Traffic 285

Traffic Metrics Systems Strategy 285

O'Reilly

JANUARY 21, 2025

TL;DR: Enterprise AI teams are discovering that purely agentic approaches (dynamically chaining LLM calls) dont deliver the reliability needed for production systems. The prompt-and-pray modelwhere business logic lives entirely in promptscreates systems that are unreliable, inefficient, and impossible to maintain at scale.

Software Engineering 119

Software Engineering Efficiency Engineering Systems 119

DZone

APRIL 21, 2023

Test tools are software or hardware designed to test a system or application. Various test tools are available for different types of testing, including unit testing, integration testing, and more.

Testing Tools 196

Testing Tools Best Practices Testing Hardware 196