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

Dynatrace

NOVEMBER 29, 2024

Protect data in multi-tenant architectures To bring you the most value by unifying observability and security in one analytics and automation platform powered by AI, Dynatrace SaaS leverages a multitenancy architecture, enabling efficient and scalable data ingestion, querying, and processing on shared infrastructure.

Storage 246

Storage AWS Azure Architecture 246

DZone

JANUARY 17, 2022

Thus, managing system processes and profiling is better off without it. That is why we need an effective alternative to assess the impact of our test. With this in mind, you might need to create a script that goes through the system processes and provides a report when the script runs.

Systems 199

Systems Monitoring Processing Testing 199

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

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

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

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. Evaluate.

DevOps 246

DevOps Engineering Testing Open Source 246

Dynatrace

FEBRUARY 4, 2025

In a single view, developers get an instant overview of application performance, system health, logs, problems, deployment status, user interactions, and much more. As every developer knows, logs are crucial for uncovering insights and detecting fundamental flaws, such as process crashes or exceptions.

Development 235

Development Analytics Code Architecture 235

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

MAY 15, 2021

Cross-browser testing has become an integral part of the test process to ensure the product experience and behavior remain consistent across different combinations of web browsers, devices, and operating systems. In this blog, we learn how to execute NUnit parameterized tests with examples.

Testing 227

Testing Operating System Code Processing 227

Dynatrace

MARCH 5, 2025

Integration with existing systems and processes : Integration with existing IT infrastructure, observability solutions, and workflows often requires significant investment and customization. Actions resulting from the evaluation The certification process surfaced a few recommendations for improving the app.

Energy 223

Energy Analytics Traffic Cloud 223

Dynatrace

OCTOBER 28, 2020

As a PSM system administrator, you’ve relied on AppMon as a preconfigured APM tool for detecting, diagnosing, and repairing problems that impact the operational health of your Windchill application suite. The post It’s time to upgrade the PTC System Monitor (PSM)! Dynatrace news. All-in-one (and not just APM).

Monitoring 225

Monitoring Systems Infrastructure Cloud 225

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 345

Traffic Latency Tuning Systems 345

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 347

Traffic Best Practices Systems Testing 347

DZone

SEPTEMBER 9, 2020

Manual cross-browser testing is neither efficient nor scalable as it will take ages to test on all permutations and combinations of browsers, operating systems, and their versions. This is why automated browser testing can be pivotal for modern-day release cycles as it speeds up the entire process of cross-browser compatibility.

Testing 239

Testing Operating System Scalability Speed 239

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. Sticky Canary is an improvement to the traditional canary process that addresses this limitation.

Traffic 283

Traffic Metrics Systems Strategy 283

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

Dynatrace

AUGUST 8, 2024

It’s also critical to have a strategy in place to address these outages, including both documented remediation processes and an observability platform to help you proactively identify and resolve issues to minimize customer and business impact. Software bugs Software bugs and bad code releases are common culprits behind tech outages.

Software 290

Software Software Infrastructure Network 290

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.

Engineering 338

Engineering Cloud Testing Processing 338

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

DZone

DECEMBER 30, 2021

This makes cross-browser testing extremely important as it lets you compare the functionalities and design of a website on multiple browsers, devices, and platforms (operating systems). To fast-track the process of browser compatibility testing , developers should use automated browser testing.

Testing 203

Testing Website Operating System Design 203

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 114

Software Engineering Efficiency Engineering Systems 114

Dynatrace

AUGUST 13, 2024

Modern observability and security require comprehensive access to your hosts, processes, services, and applications to monitor system performance, conduct live debugging, and ensure application security protection. Changes are introduced on a controlled schedule, typically once a week, to reduce the risk of affecting customer systems.

Monitoring 279

Monitoring Open Source Testing Software 279

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 201

Best Practices Cache Metrics Code 201

DZone

NOVEMBER 3, 2020

How to start Kafka performance testing with JMeter + Pepper-Box plugin ? Is it possible to write samplers for JMeter on your own to provide Kafka performance testing? Apache Kafka is a distributed data store optimized for ingesting and processing streaming data in real-time. Agenda for This Article. Pros and cons. Conclusion.

Performance Testing 223

Performance Testing Testing Performance Open Source 223

Dynatrace

MARCH 17, 2025

Scale to zero Scaling systems to match current demand prevents underutilized machines from consuming significant energy while idling. While building production systems that can scale to zero and reliably restart can be challenging, it’s often simpler in test stages and build pipelines, making this a great place to start.

Software Engineering 147

Software Engineering Engineering Software Software 147

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

Dynatrace

FEBRUARY 23, 2022

DevSecOps teams can address this unsettling tradeoff by automating processes throughout the SDLC, centralizing application configuration with a shared set of tools, and using observability platforms to gain visibility into code-quality lapses, security gaps, and other software development issues.

Serverless 312

Serverless Infrastructure Innovation DevOps 312

Dynatrace

JUNE 26, 2024

System Backup now requires the backup of privacy-related system documentation. 5 control family that more comprehensively addresses the risks associated with acquiring, developing, and maintaining information systems and components associated with third-party and vendor services, products, and supply chains. FedRAMP Rev.5

Government 279

Government Programming Cloud Innovation 279

The Netflix TechBlog

JANUARY 2, 2025

Ideally, we would have causal estimates from an A/B test to use for validation, but since that is not available, we use another causal inference design as one of our ensemble of validation approaches. Each format has a different production process and different patterns of cash spend, called our Content Forecast.

Analytics 188

Analytics Engineering Games Entertainment 188

Dynatrace

JANUARY 26, 2021

DevSecOps is a cross-team collaboration framework that integrates security into DevOps processes from the start rather than waiting to address security in a separate silo. DevOps has gained ground in recent years as a way to combine key operational principles with development cycles, recognizing that these two processes must coexist.

DevOps 306

DevOps Best Practices Open Source Tuning 306

Dynatrace

APRIL 29, 2021

CI/CD is a series of interconnected processes that empower developers to build quality software through well-aligned and automated development, testing, delivery, and deployment. As Deloitte reports, continuous integration (CI) streamlines the process of internal software development.

DevOps 299

DevOps Logistics Code Software 299

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. One of the main advantages we also saw in having an app with clear boundaries is our testing strategy?—?the We treat it as an input for our system.

Architecture 346

Architecture Transportation Java Strategy 346

Scalegrid

SEPTEMBER 5, 2024

Ensuring high availability in PostgreSQL involves implementing automatic failover, a critical process that maintains database operability and preserves data accessibility when unexpected failures occur. In the event of a primary server failure, standby servers are prepared to assume control, which helps reduce system downtime.

Availability 257

Availability Servers Database Open Source 257

The Netflix TechBlog

DECEMBER 3, 2022

The most commonly used one is dataflow project , which helps folks in managing their data pipeline repositories through creation, testing, deployment and few other activities. Thanks to the Netflix internal lineage system (built by Girish Lingappa ) Dataflow migration can then help you identify downstream usage of the table in question.

Best Practices 361

Best Practices Code Testing Data Engineering 361

Dynatrace

JULY 25, 2024

A key learning from the outage caused by the faulty CrowdStrike “Rapid Response” update is how critical it is to understand your vendors’ quality control and release processes. Thorough testing reduces the risk of outages and vulnerabilities from untested updates, showcasing the vendor’s commitment to reliable and compatible solutions.

Strategy 278

Strategy Monitoring Open Source Testing 278

Dynatrace

OCTOBER 1, 2021

As dynamic systems architectures increase in complexity and scale, IT teams face mounting pressure to track and respond to conditions and issues across their multi-cloud environments. An advanced observability solution can also be used to automate more processes, increasing efficiency and innovation among Ops and Apps teams.

Metrics 363

Metrics Open Source Monitoring Cloud 363