High Scalability

NOVEMBER 30, 2021

Max reHIT Workout is an exercise app that guides you through interval workouts. I'll just say I’m proud of how it turned out and if you want an optimal algorithm for exercising, you might like it. That's because there’s been very little evolution in software system architecture. I won’t pitch the app here.

Architecture 184

Architecture Cloud Software Software 184

DZone

NOVEMBER 9, 2021

NIST did classic research to show that catching bugs at the beginning of the development process could be more than ten times cheaper than if a bug reaches production. nn> MonitoringnnWe (humans) are terrible at imagining all possible permutations of the system with billions and billions of possible states.

Software 245

Software Software Code Design 245

Dynatrace

APRIL 15, 2021

As a company that’s ethos is based on a points-based system for health, by doing exercise and being rewarded with vouchers such as cinema tickets, the pandemic made both impossible tasks to do. Vitality had to respond quickly to this change by signing up new partners and developing new ways of incorporating rewards.

Speed 241

Speed Media Monitoring Engineering 241

The Netflix TechBlog

FEBRUARY 1, 2022

For many roles, you will be given a choice between a take-home coding exercise or a one-hour discussion with one of the engineers from the team. We recommend against interview coding practice puzzle-type exercises, as we don’t ask those types of questions. The problems you are asked to solve are related to the work of the team.

Engineering 208

Engineering Games Entertainment Innovation 208

Dynatrace

MAY 15, 2020

Modern DevOps permits high velocity development cycles resulting in weekly, daily, or even hourly software releases. These insights are critical to ensuring proactive application monitoring and optimal system performance. Could you tell me how this might help me understand if a system was compromised?”

Government 278

Government DevOps Infrastructure Network 278

Dynatrace

DECEMBER 10, 2020

During the recent pandemic, organizations that lack processes and systems to scale and adapt to remote workforces and increased online shopping are feeling the pressure even more. As a counterpoint to the COE challenges, we also observe some challenges within independent Agile development teams.

Strategy 245

Strategy Performance Logistics Monitoring 245

Dynatrace

DECEMBER 5, 2023

Do material incidents on “third-party systems” require disclosure? The mandate explains why this is the case: “A reasonable investor would [not] view a significant breach of a registrant’s data as immaterial merely because the data were housed on a third-party system ….

Best Practices 279

Best Practices Government C++ Education 279

Dynatrace

MARCH 14, 2022

As patient care continues to evolve, IT teams have accelerated this shift from legacy, on-premises systems to cloud technology to more build, test, and deploy software, and fuel healthcare innovation. That includes failures in parts of a system that occur at similar times and have a common root cause.

Healthcare 246

Healthcare Artificial Intelligence Innovation Strategy 246

CSS Wizardry

OCTOBER 16, 2023

immutable is a relatively new directive that effectively makes a contract with the browser in which we as developers tell the browser: this file will never, ever change, ever ; please don’t bother coming back to the server to check for updates. This post was mostly an exercise in curiosity. But how long is forever?!

Cache 215

Cache C++ Servers Internet 215

The Netflix TechBlog

OCTOBER 26, 2021

We then used simple thought exercises based on flipping coins to build intuition around false positives and related concepts such as statistical significance, p-values, and confidence intervals. In this post, we’ll do the same for false negatives and the related concept of statistical power.

Testing 211

Testing Metrics Latency Design 211

Dynatrace

SEPTEMBER 30, 2021

Recently, 53 Dynatracers convened in a Zoom room for 5 action-packed hours to take on our first AWS GameDay challenge, an event we participated in to help our developers accelerate their AWS certification path. What is the value of AWS training and certification? Then this one’s for you. Specialty AWS certifications.

AWS 246

AWS Best Practices Cloud Analytics 246

The Netflix TechBlog

DECEMBER 23, 2020

By Fabio Kung , Sargun Dhillon , Andrew Spyker , Kyle , Rob Gulewich, Nabil Schear , Andrew Leung , Daniel Muino, and Manas Alekar As previously discussed on the Netflix Tech Blog, Titus is the Netflix container orchestration system. It runs a wide variety of workloads from various parts of the company?—?everything

Media 295

Media Metrics Systems Processing 295

The Morning Paper

MARCH 15, 2020

Understanding, detecting and localizing partial failures in large system software , Lou et al., Partial failures ( gray failures ) occur when some but not all of the functionalities of a system are broken. Here are the key findings: Partial failures appear throughout the release history of each system, 54% within the last three years.

Systems 98

Systems Software Software Programming 98

Dynatrace

JUNE 27, 2022

These development and testing practices ensure the performance of critical applications and resources to deliver loyalty-building user experiences. However, not all user monitoring systems are created equal. This includes development, user acceptance testing, beta testing, and general availability. The bottom line?

Best Practices 244

Best Practices Monitoring Wireless Traffic 244

Dynatrace

APRIL 5, 2024

Consequently, by understanding the intricacies involved, this enables us to swiftly confirm or refute the functional/business case of the business teams involved, including project managers, top management, developers, and tech leads. Path 2 (easier): I’m familiar with my application and the development team.

Efficiency 264

Efficiency Traffic Tuning Metrics 264

The Netflix TechBlog

SEPTEMBER 8, 2020

How we migrated our Android endpoints out of a monolith into a new microservice by Rohan Dhruva , Ed Ballot As Android developers, we usually have the luxury of treating our backends as magic boxes running in the cloud, faithfully returning us JSON. It was a Node.js Java…Script? ecosystem and the rich selection of npm packages available.

Latency 241

Latency Cache Java Traffic 241

Smashing Magazine

DECEMBER 2, 2021

Advent Calendars For Web Designers And Developers (December 2021 Edition). Advent Calendars For Web Designers And Developers (December 2021 Edition). Anyone can contribute by sharing their blog posts, videos, articles or podcast episodes dedicated to C# development. Iris Lješnjanin. 2021-12-02T14:00:43+00:00. Rock on! ??.

Design 120

Design Development Programming Website 120

Scalegrid

APRIL 16, 2020

Use Follower Clusters keep two independent database systems (of the same type) in sync so you can analyze, optimize and test app performance for MySQL, PostgreSQL and MongoDB® database. The availability of a computer system is the percentage of time its services are up during a period of time. Expert Tip. Security Groups. No problem.

Cloud 242

Cloud Azure AWS Database 242

The Netflix TechBlog

SEPTEMBER 10, 2024

History & motivation There were two main motivating use cases that drove Pushy’s initial development and usage. Sample system diagram for an Alexa voice command. Where aws ends and the internet begins is an exercise left to the reader. The other main use case was RENO, the Rapid Event Notification System mentioned above.

Latency 234

Latency Cache Tuning Efficiency 234

Dynatrace

JUNE 1, 2023

Five SLO examples for faster, more reliable apps Once you get started with these service-level objective examples, you can branch out to develop more targeted SLOs suited for your business. It represents the percentage of time a system or service is expected to be accessible and functioning correctly.

Traffic 173

Traffic Website Latency DevOps 173

O'Reilly Software

FEBRUARY 28, 2018

Adrian Cockcroft outlines the architectural principles of chaos engineering and shares methods engineers can use to exercise failure modes in safety and business-critical systems Continue reading Developing a chaos architecture mindset.

Architecture 63

Architecture Development Engineering Systems 63

The Netflix TechBlog

MARCH 5, 2020

Each of these steps has the incident commander and incident participants moving through various systems and interfaces. Although developed as a tool to help Netflix manage security incidents, nothing about Dispatch is specific to a security use-case. Slack, GSuite, PagerDuty, etc.,). Slack for managing incident metadata (e.g.

Open Source 213

Open Source AWS Google Speed 213

Dynatrace

APRIL 21, 2022

To guide organizations through their cloud migrations, Microsoft developed the Azure Well-Architected Framework. Most monitoring tools for migrations, development, and operations focus on collecting and aggregating the three pillars of observability— metrics, traces, and logs.

Azure 246

Azure Monitoring Virtualization Metrics 246

O'Reilly

MARCH 11, 2025

On May 8, OReilly Media will be hosting Coding with AI: The End of Software Development as We Know It a live virtual tech conference spotlighting how AI is already supercharging developers, boosting productivity, and providing real value to their organizations. Their creations, not so much. The art of asking is everything.

Artificial Intelligence 52

Artificial Intelligence Hardware Website Media 52

O'Reilly

AUGUST 13, 2024

“That’s what GPS says”—well, GPS is usually right, but I have seen GPS systems tell me to go the wrong way down a one-way street. In many ways, we’ve come to think of computers and computing systems as oracles. That’s an even greater temptation now that we have generative AI: ask a question and you’ll get an answer.

Social Media 123

Social Media Media Games Innovation 123

The Morning Paper

SEPTEMBER 24, 2019

50 ways to leak your data: an exploration of apps’ circumvention of the Android permissions system Reardon et al., These deceptive practices allow developers to access users’ private data without consent, undermining user privacy and giving rise to both legal and ethical concerns. USENIX Security Symposium 2019. most apps).

Systems 74

Systems Traffic Network Google 74

Particular Software

MARCH 28, 2022

We’ve focused on supercharging your ability to develop NServiceBus sagas in our latest round of releases. As a result, you’re going to feel like you’ve got your own “ heads-up display ” when developing sagas. We created a bunch of analyzer diagnostics—15 in total—to supercharge your saga development. In NServiceBus version 7.7,

Development 52

Development C++ Virtualization Metrics 52

O'Reilly

OCTOBER 19, 2021

As with many burgeoning fields and disciplines, we don’t yet have a shared canonical infrastructure stack or best practices for developing and deploying data-intensive applications. To make ML applications production-ready from the beginning, developers must adhere to the same set of standards as all other production-grade software.

DevOps 145

DevOps Software Engineering Open Source Infrastructure 145

O'Reilly

JANUARY 17, 2023

What would you say is the job of a software developer? A layperson, an entry-level developer, or even someone who hires developers will tell you that job is to … well … write software. ” I, thankfully, learned this early in my career, at a time when I could still refer to myself as a software developer.

Tuning 145

Tuning Open Source Software Software 145

Dynatrace

JUNE 1, 2021

Practitioners use APM to ensure system availability, optimize service performance and response times, and improve user experiences. Application performance monitoring focuses on specific metrics and measurements; application performance management is the wider discipline of developing and managing an application performance strategy.

Monitoring 165

Monitoring Mobile Social Media Infrastructure 165

The Netflix TechBlog

MAY 27, 2020

Reliability, formally speaking, is the ability of a system to function under stated conditions for a period of time. Put simply, reliability means a system should work and continue working. assisting the responding service owners with understanding what systems are contributing to the incident Liaison?—?communicating

Engineering 105

Engineering Innovation Systems Architecture 105

O'Reilly

JUNE 15, 2023

should be a global priority alongside other societal-scale risks, such as pandemics and nuclear war,” according to a statement signed by more than 350 business and technical leaders, including the developers of today’s most important AI platforms. Governance is not a “once and done” exercise. We satisfice.”

Government 128

Government Best Practices Energy Internet 128

Percona

OCTOBER 31, 2023

Continuing this trajectory into the future improvements in the development of our software products will require many decisions. Data-informed decision-making is key to delivering products that users love and also key to making the difficult choices on where to invest precious development resources and funds.

Open Source 111

Open Source Database Operating System Programming 111

All Things Distributed

NOVEMBER 15, 2010

Werner Vogels weblog on building scalable and robust distributed systems. Now that our ability to generate higher and higher clock rates has stalled and CPU architectural improvements have shifted focus towards multiple cores, we see that it is becoming harder to efficiently use these computer systems. All Things Distributed.

AWS 125

AWS Programming Latency Architecture 125

The Morning Paper

NOVEMBER 3, 2019

The authors selected a set of diverse application workloads, as shown in the table below, and analysed their execution to find out the system call frequency and total execution time. A micro-benchmark suite, LEBench was then built around tee system calls responsible for most of the time spent in the kernel.

Performance 108

Performance Benchmarking Tuning Hardware 108

The Morning Paper

APRIL 16, 2019

Teaching rigorous distributed systems with efficient model checking Michael et al., It describes the labs environment, DSLabs , developed at the University of Washington to accompany a course in distributed systems. EuroSys’19. On the surface you might think today’s paper selection an odd pick.

Systems 43

Systems Efficiency Testing Design 43

All Things Distributed

OCTOBER 2, 2017

Our straining database infrastructure on Oracle led us to evaluate if we could develop a purpose-built database that would support our business needs for the long term. The requirements for a fully hosted cloud database service needed to be at an even higher bar than what we had set for our Amazon internal system.

Internet 110

Internet Internet AWS Performance 110