The Netflix TechBlog

JULY 1, 2019

Bringing Rich Experiences to Memory-Constrained TV Devices By Jason Munning, Archana Kumar, Kris Range Netflix has over 148M paid members streaming on more than half a billion devices spanning over 1,900 different types. In the TV space alone, there are hundreds of device types that run the Netflix app. We need to support the same rich Netflix experience on not only high-end devices like the PS4 but also memory and processor-constrained consumer electronic devices that run a similar chipset as w

Cache 166

Cache Design Testing Development 166

Rigor

JULY 11, 2019

Reading Time: 8 minutes Whether your ecommerce business is 100% online or you supplement with bricks and mortar, your website is a critical revenue driver. When your website isn’t performing optimally, you risk not only your revenue but also your reputation as a trusted resource. It’s a given that you’re monitoring your site so it’s up and running and that you’re swiftly addressing issues when they arise.

Ecommerce 87

Ecommerce Metrics Website Mobile 87

Dynatrace

JULY 8, 2019

Dynatrace news. While not a new concept, the term “cloud” creates a lot of confusion because it means different things to different audiences. I’ve been speaking to customers over the last few months about our new cloud architecture for Synthetic testing locations and their confusion is clear. Hearing things like “Will you have more than one geographic location?

Cloud 202

Cloud Hardware Testing Logistics 202

DZone

JULY 12, 2019

Performance testing and engineering is always a niche area with many challenging objectives across the globe. The challenge of performance testing with performance engineering is far more complex and requires one to be multi-skilled to find problems/issues/defects. In the last few years, I have come across several interviews, discussions with client-facing groups and customers, and what they have in common is a high demand for performance engineers, not just performance testers.

Engineering 243

Engineering Performance Performance Testing Testing Tools 243

Kovair

JULY 3, 2019

The infotainment and entertainment industry has undergone a phenomenal change with online channels and providing features such as movies and other content on demand. Similarly, The post Continuous Testing in Software Development can Ensure Excellence in Quality appeared first on Kovair Blog.

Entertainment 73

Entertainment Software Software Development 73

Scalegrid

JULY 8, 2019

Are you looking to get started with the world’s most popular open-source database, and wondering how you should setup your MySQL hosting ? So many default to Amazon RDS, when MySQL performs exceptionally well on Azure Cloud. While Microsoft Azure does offer a managed solution, Azure Database, the solution has some major limitations you should know about before migrating your MySQL deployments.

Azure 219

Azure Cloud Virtualization Database 219

The Netflix TechBlog

JULY 30, 2019

v2.0 and beyond By Anoop Panicker and Kishore Banala Conductor is a workflow orchestration engine developed and open-sourced by Netflix. If you’re new to Conductor, this earlier blogpost and the documentation should help you get started and acclimatized to Conductor. Netflix Conductor: A microservices orchestrator In the last two years since inception, Conductor has seen wide adoption and is instrumental in running numerous core workflows at Netflix.

Lambda 189

Lambda Media Open Source Metrics 189

Dynatrace

JULY 25, 2019

Dynatrace news. Dynatrace and xMatters have teamed up to help organizations meet the challenges of their increasingly complex enterprise cloud environments. Our out-of-the-box xMatters integration automates and closes the feedback loop between Dev and Ops, allowing for automatic push notifications from Dynatrace to xMatters environments. This enables the timely routing of critical information to the responsible team members.

Systems 174

Systems DevOps Design Google 174

DZone

JULY 26, 2019

Before we get into the tutorial hands-on, I would like to mention that this topic is not new. It has been covered in various helpful articles like the ones from TestAutomationGuru. The content which I am about to present has its custom favors and solves specific issues that I have encountered while working with this setup.

Infrastructure 271

Infrastructure AWS Testing Performance Testing 271

Brendan Gregg

JULY 15, 2019

BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability , coming soon from Addison Wesley. The book includes over 150 BPF observability tools that you can run to find performance wins and troubleshoot software, and also shows you how to write your own.

Systems 111

Systems Performance Education Technology 111

Scalegrid

JULY 17, 2019

PALO ALTO, Calif., July 17, 2019 – ScaleGrid, a leader in the Database-as-a-Service (DBaaS) space, has just announced support for PostgreSQL hosting in the cloud. The fully managed platform allows organizations to automate their time-consuming PostgreSQL operations, focus on database development, and optimize performance with advanced monitoring, high availability, and disaster recovery on AWS and Azure.

Azure 182

Azure AWS Open Source Database 182

Sutter's Mill

JULY 25, 2019

Today I collated and analyzed the results of the survey I posted two weeks ago. I presented you with a daunting unsorted list of ~300 eye-numbing paper titles , and still 289 of you responded with ~1,200 total votes (not everyone picked five things) many of which contained thoughtful “how I would use it” verbatims. Thank you for your time and interest!

C++ 98

C++ Programming Network Efficiency 98

The Polyglot Developer

JULY 31, 2019

There are tons of tools out there that help you make sure your app is functioning correctly. But how do test software from a purely visual standpoint? Chances are you’re writing functional tests to check visual elements, or manually checking your UI whenever you push a change. If you are doing either of those things, then you know that they’re incredibly time-consuming and bugs still end up slipping through the cracks.

Testing 93

Testing Software Software Development 93

Dynatrace

JULY 3, 2019

Dynatrace news. Anything you want to do on a web server, you can do with PHP. This is why PHP is such a popular programming language for web development. Here are some statistics: PHP now accounts for about 79% of the server-side programming used on the Internet. Compare that to the two next-highest languages: 11.1% for ASP.NET, which is a web framework, and 4% for Java.

Monitoring 169

Monitoring Ecommerce Internet Internet 169

DZone

JULY 2, 2019

Quality assurance (QA) testing is an essential part of the software development process, involving the identification of bugs in products to ensure they are as error-free as possible. Unfortunately, there are also a lot of misconceptions about what QA testing and QA services actually entail. Today, many companies engage in software QA outsourcing , sometimes using offshore testing services, while some still keep their QA services in-house.

Testing 256

Testing Software Software Development 256

Smashing Magazine

JULY 29, 2019

I Used The Web For A Day On A 50 MB Budget. I Used The Web For A Day On A 50 MB Budget. Chris Ashton. 2019-07-29T14:00:59+02:00. 2019-07-29T13:06:57+00:00. This article is part of a series in which I attempt to use the web under various constraints, representing a given demographic of user. I hope to raise the profile of difficulties faced by real people, which are avoidable if we design and develop in a way that is sympathetic to their needs.

Cache 96

Cache Google Mobile Network 96

Scalegrid

JULY 29, 2019

WordPress is the largest website builder platform in the world, supporting over 34% of all websites on the internet today. MySQL is a free open source relational database management system that is leveraged across a majority of WordPress sites, and allows you to query your data such as posts, pages, images, user profiles, and more. As any WordPress developer knows, each installation requires a database in the backend, and MySQL is the database of choice for storing and retrieving your WordPress

Database 166

Database Cloud Website Azure 166

Sutter's Mill

JULY 20, 2019

Obligatory comment: The C++20 Eagle has wings. At noon today, July 20 2019, the ISO C++ committee completed its summer meeting in Cologne, Germany, hosted with thanks by Think-Cell, SIGS Datacom, SimuNova, Silexica, Meeting C++, Josuttis Eckstein, Xara, Volker Dörr, Mike Spertus, and the Standard C++ Foundation. As usual, we met for six days Monday through Saturday, and it was our biggest meeting yet with some 220 attendees.

C++ 98

C++ Education Programming Design 98

The Morning Paper

JULY 7, 2019

Software engineering for machine learning: a case study Amershi et al., ICSE’19. Previously on The Morning Paper we’ve looked at the spread of machine learning through Facebook and Google and some of the lessons learned together with processes and tools to address the challenges arising. Today it’s the turn of Microsoft. More specifically, we’ll be looking at the results of an internal study with over 500 participants designed to figure out how product development and software engineering

Software Engineering 92

Software Engineering Engineering Software Software 92

Dynatrace

JULY 9, 2019

Dynatrace news. Welcome to the third edition of Dynatrace Partner Spotlight! This month we’re presenting ZigiWave – the company behind ZigiOps, the software that allows enterprises to share relevant data seamlessly between their management systems. Data management is becoming hard, as IT complexity grows. Expanding IT systems can lead to extreme data management challenges and major headaches for any organization.

DevOps 167

DevOps Scalability Systems Technology 167

DZone

JULY 5, 2019

Regression Testing, by its definition, is a type of software testing to confirm that a recent program or code change has not adversely affected existing features. It is done to make sure that the existing application is intact with the newly added features and nothing is broken. In order to achieve that, the existing test cases are executed selectively or sometimes completely.

Testing Tools 248

Testing Tools Testing Programming Code 248

Smashing Magazine

JULY 11, 2019

Inspired Design Decisions: Pressing Matters. Inspired Design Decisions: Pressing Matters. Andrew Clarke. 2019-07-11T12:30:59+02:00. 2019-07-11T11:39:07+00:00. As I’d always been at the top of my class during high school, I headed to art college full of confidence that one day I’d be an accomplished painter. This over-confidence didn’t last long though, because when I arrived, I found myself surrounded by conceptual artists, filmmakers, painters, performance artists, printmakers, and sculptors, w

Design 92

Design Media Mobile Energy 92

SQL Performance

JULY 11, 2019

I have been looking forward to writing this blog post for months. MONTHS. Last year, I got together with one of my dev teams at SentryOne – they call themselves the SQL Injectors – to talk about the possibility of replicating Plan Explorer functionality inside of Azure Data Studio. After some discussion, we brought the concept to the leadership team, and set a plan in motion.

Azure 90

Azure Servers Tuning Operating System 90

Sutter's Mill

JULY 13, 2019

WG21 has a strict schedule (see P1000 ) by which we ship the standard every three years. We don’t delay it. Around this time of each cycle, we regularly get questions about “but why so strict?”, especially because we have many new committee members who aren’t as familiar with our history and the reasons why we do things this way now. And so, on the pre-Cologne admin telecon last Friday, several of the chairs encouraged me to write down the reasons why we do it this way, and some of the history b

C++ 98

C++ Entertainment Education Azure 98

The Polyglot Developer

JULY 29, 2019

You might remember that I had written a tutorial titled, Simple User Login in a Vue.js Web Application , which demonstrated how to navigate between routes and check a variable to determine if a user should in fact be allowed to be on a particular route. This previous tutorial focused on applying logic after the user had already completed the navigation process, rather than during or prior.

Processing 81

Processing Development 81

Dynatrace

JULY 22, 2019

Dynatrace news. “Use the Artificial Intelligence”, it is not a Jedi Trick. Old School monitoring. I have worked on many accounts where Dynatrace replaced tools such as Nagios and Solarwinds. Basically, what we call “first-generation” monitoring software. These older tools require a lot of manual effort to set up correctly, especially when configuring alerts.

Best Practices 164

Best Practices Artificial Intelligence Monitoring Tuning 164

DZone

JULY 1, 2019

Memcached is an easy-to-use, high-performance, in-memory data store. It offers a mature, scalable, open-source solution for delivering sub-millisecond response times, unlike databases that store data on disk or SSDs, Memcached keeps its data in memory. This tutorial will cover how to use Memcached in Jakarta EE with Eclipse JNoSQL. Installing Memcached Using Docker.

Java 203

Java Performance Open Source Scalability 203

Smashing Magazine

JULY 16, 2019

The Ultimate Guide To Building Scalable Web Scrapers With Scrapy. The Ultimate Guide To Building Scalable Web Scrapers With Scrapy. Daniel Ni. 2019-07-16T14:30:59+02:00. 2019-07-16T14:35:52+00:00. Web scraping is a way to grab data from websites without needing access to APIs or the website’s database. You only need access to the site’s data — as long as your browser can access the data, you will be able to scrape it.

Scalability 87

Scalability Website C++ Servers 87

The Morning Paper

JULY 18, 2019

Meta-learning neural bloom filters Rae et al., ICML’19. Bloom filters are wonderful things, enabling us to quickly ask whether a given set could possibly contain a certain value. They produce this answer while using minimal space and offering O(1) inserts and lookups. It’s no wonder Bloom filters and their derivatives (the family of approximate set membership algorithms) are used everywhere.

Network 86

Network Java Database Hardware 86

SQL Performance

JULY 9, 2019

The ISO/IEC 9075:2016 standard (SQL:2016) defines a feature called nested window functions. This feature allows you to nest two kinds of window functions as an argument of a window aggregate function. The idea is to allow you to refer to either a row number, or to a value of an expression, at strategic markers in windowing elements. The markers give you access to the first or last row in the partition, the first or last row in the frame, the current outer row, and the current frame row.

Servers 83

Servers Availability Database Code 83

SQL Shack

JULY 10, 2019

Introduction In-memory technologies are one of the greatest ways to improve performance and combat contention in computing today. By removing disk-based storage and the challenge of copying data in and out of memory, query speeds in SQL Server can be improved by orders of magnitude. TempDB is one of the biggest sources of latency in […].

Servers 79

Servers Latency Storage Speed 79

Dynatrace

JULY 16, 2019

Dynatrace news. Synthetic clickpath monitors are a great way to automatically monitor and benchmark business-critical workflows 24/7. Some common examples of such business-critical workflows include: Sign-up processes. Checking out of a retail site. Contact forms. Search. Pricing calculators. Dynatrace helps to ensure these workflows are available globally and performing well so that you can be confident that you’re meeting your SLAs.

Monitoring 163

Monitoring Retail Benchmarking Tuning 163

DZone

JULY 29, 2019

When we think of the word superstar, it is usually associated with fame, but in the tech industry, the real superstars are the ones who are able to do the work. At Test Automation University — affectionately known as TAU, we offer a variety of free test automation courses covering web, API, mobile, visual, AI, and codeless automation frameworks. Our world-class expert instructors provide free test automation training in multiple programming languages such as Java, JavaScript, C#, Python, Ruby, a

Testing 189

Testing Java C++ Programming 189

n0derunner

JULY 23, 2019

Effect of removing CPU constraints and maintaining data locality on a running DB instance. In this video I migrate a Postgres DB running PGbench benchmark. The DB is running on a Host which is CPU constrained. Once the VM is migrated to a less busy host the transaction rate immediately increases from ~15,000 to ~20,000. As the DB continues to run on the new host – the Nutanix storage detects the access patterns and “localizes” the data that the DB is accessing.

Benchmarking 76

Benchmarking Storage Tuning Cache 76

The Morning Paper

JULY 4, 2019

Automating chaos experiments in production Basiri et al., ICSE 2019. Are you ready to take your system assurance programme to the next level? This is a fascinating paper from members of Netflix’s Resilience Engineering team describing their chaos engineering initiatives: automated controlled experiments designed to verify hypotheses about how the system should behave under gray failure conditions, and to probe for and flush out any weaknesses.

Latency 77

Latency Engineering Metrics Traffic 77

Strategic Tech

JULY 22, 2019

How do we break a large system into smaller, more manageable modular components? This is the question I get asked the most, so I’ve put together this article describing a workshop recipe you can use. In Domain-Driven Design, a large system is decomposed into bounded contexts , which become natural boundaries in code as microservices and as teams in the organisation.

Design 76

Design Systems Strategy Processing 76

The Polyglot Developer

JULY 16, 2019

Typically when I’m working with RESTful APIs, the routes or endpoints return what I need, plus more, which would be too much data. However, recently I ended up working with an API where the responses were rather trim, resulting in the need to use many HTTP requests to various endpoints, rather than getting everything in a single request. To take it a step further, some of those HTTP requests depended on data from other requests creating a mess of asynchronous operations in JavaScript.

Code 75

Code Development 75