The Netflix TechBlog

SEPTEMBER 8, 2020

Over the course of this post, we will talk about our approach to this migration, the strategies that we employed, and the tools we built to support this. For the migration, testing was a first-class citizen. Replay Testing Enter replay testing.

Latency 233

Latency Cache Java Traffic 233

Scalegrid

APRIL 16, 2020

In this post, we compare ScaleGrid’s Bring Your Own Cloud (BYOC) plan vs. the standard Dedicated Hosting model to help you determine the best strategy for your MySQL, PostgreSQL, Redis™ and MongoDB® database deployment. The availability of a computer system is the percentage of time its services are up during a period of time.

Cloud 242

Cloud Azure AWS Database 242

The Agile Manager

OCTOBER 31, 2022

A few months ago I was asked to review a product strategy a team had put together. I had to give them the unfortunate feedback that what they had created was a document with a lot of words, but those words did not articulate a strategy. There is a formula for articulating strategy. The actions must be, well, actionable.

Strategy 89

Strategy Retail Operating System Programming 89

O'Reilly

JUNE 27, 2023

Because most of those have been deployed in such a way that they are only communicating with trusted internal systems. Red-team exercises can uncover weaknesses in the system while it’s still under development. Why not take the extra time to test for problems? That’s because it is.

Social Media 89

Social Media Media Website Database 89

Sutter's Mill

JANUARY 11, 2021

Note that “no side effects on normal execution” is always automatically true for violation handlers even when an assertion system such as proposed in [4] allows arbitrary custom violation handlers to be installed, because those are executed only if we discover that we’re in a corrupted state and so are already outside of normal execution. [5]

C++ 58

C++ Programming Code Testing 58

Dynatrace

SEPTEMBER 20, 2019

One of the several deployment strategies is the blue/green deployment approach: In this method, two identical production environments work in parallel. The new version of the application is deployed in the green environment and tested for functionality and performance. Both use the same database back-end and app configuration.

Systems 26

Systems Traffic DevOps Database 26

Dynatrace

DECEMBER 10, 2020

I recently joined two industry veterans and Dynatrace partners, Syed Husain of Orasi and Paul Bruce of Neotys as panelists to discuss how performance engineering and test strategies have evolved as it pertains to customer experience. Dynatrace news. This blog summarizes our great conversation for the posed questions.

Strategy 178

Strategy Performance Logistics Monitoring 178

The Agile Manager

AUGUST 31, 2020

I've worked with quite a few companies for which long-lived software assets remain critical to day-to-day operations, ranging from 20-year-old ERP systems to custom software products that first processed a transaction way back in the 1960s. Several things stand out about these initiatives.

Architecture 52

Architecture Code Strategy Programming 52

The Agile Manager

FEBRUARY 28, 2017

There aren't a lot of high cards we can draw, but playing them in the right combination offers us a strategy. For example, ghost code - code that is not commented out but will conditionally never be executed - is likely to be confused for real code in a reverse-engineering exercise. Why not put them back on the payroll?

Strategy 40

Strategy Java Code Systems 40

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. The ability to identify application performance issues and potential issues by running interval tests.

Best Practices 175

Best Practices Monitoring Wireless Traffic 175

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. Enabling students to build running performant versions of all of those systems in the time available is one challenge.

Systems 43

Systems Efficiency Testing Strategy 43

Percona

DECEMBER 5, 2023

The scenario Service considerations In this exercise, we wanted to perform a major version upgrade from PostgreSQL v12.16 Conclusion Logical replication combined with Point-In-Time Recovery (PITR) in PostgreSQL offers a powerful strategy for version upgrades without significant downtime. to PostgreSQL v15.4.

Database 80

Database Traffic C++ Servers 80

Tasktop

FEBRUARY 24, 2021

Get together once a year for a value stream mapping exercise, and you’ll emerge with a list of potential improvement hypotheses. . But from all those hotspots, identifying the system constraint , the one big, juicy bottleneck that is at this very moment is negating and undermining the benefits from your optimization efforts?

Healthcare 52

Healthcare Retail Metrics Innovation 52

Alex Russell

FEBRUARY 21, 2023

By mandating proof of developer enthusiasm for features, extensive test suites, and accurate specifications, the catch-up process has been put on rails for Apple. No, this was a change in strategy. as an (eventual) exercise of monopolistic power that held the web back for more than a decade?

Energy 79

Energy Games Engineering Design 79

Smashing Magazine

AUGUST 19, 2021

If there is strong disagreement between one or more principles that some feel should be combined while others feel should be separate, then run a dot-voting prioritization exercise. The latter is highly unethical and leads to false assumptions and even worse design and content strategy decisions. Design Prototypes.

Code 137

Code Design Education Government 137

Tasktop

FEBRUARY 24, 2021

Get together once a year for a value stream mapping exercise, and you’ll emerge with a list of potential improvement hypotheses. . But from all those hotspots, identifying the system constraint , the one big, juicy bottleneck that at this very moment is negating and undermining the benefits from your optimization efforts?

Healthcare 40

Healthcare Retail Metrics Innovation 40

The Morning Paper

JANUARY 23, 2020

In this study, the diagnosis and resolution of an outage in a global Internet service, Etsy.com, was explored in an effort to uncover which cognitive strategies (specifically, heuristics) are used by engineers as they work to bring the service back to a stable state. First look for any correlation to the last change made to the system.

Internet 53

Internet Internet Cache Engineering 53

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. Hence, one way to reduce risk is to make systems more observable. This discussion focuses on hardware, software and operational failure modes.

Latency 52

Latency Engineering Systems Hardware 52

Tasktop

OCTOBER 30, 2019

Over the past months, a number of Fortune 100 customers have been testing Tasktop’s new product, Tasktop Viz , to implement the Flow Framework. He had a strategy. By consolidating and streamlining the toolchain and automating the flow information between systems, Select Medical saw immediate benefits. “In Day two recap.

DevOps 8

DevOps Education Innovation Metrics 8

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. Hence, one way to reduce risk is to make systems more observable. This discussion focuses on hardware, software and operational failure modes.

Latency 53

Latency Engineering Systems Hardware 53

Percona

JULY 6, 2023

Performance is one of the essential aspects of a database management system. then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice.

Best Practices 95

Best Practices Tuning Database Testing 95

Strategic Tech

FEBRUARY 16, 2022

The system needs to be highly reliable because even just a little downtime can alienate loyal customers. Two particularly relevant patterns are Efficiency Enables Evolution and Higher Order Systems Create New Sources of Worth. In Wardley lingo, Google Maps is so efficient that it acts as a building block for higher-order systems (e.g.

Innovation 52

Innovation Speed Google Strategy 52

Smashing Magazine

AUGUST 5, 2021

Or perhaps there is no mistake on our end at all, and it’s a system bug that’s absolutely out of our control. When large parts of the interface are disabled , most customers will assume that the system is busy , and some process is happening in the background on the page. Or we’ve overlooked some fine print somewhere.

Design 145

Design Transportation Code Systems 145

HammerDB

JANUARY 5, 2019

This post addresses some of the opinions around database benchmarking and gives the top 5 reasons why industry standard benchmarking is important and should be an essential foundation of your database engineering strategy. If you change something and re-run the same test the difference in the results can be attributed to the changes you made.

Benchmarking 40

Benchmarking Database Social Media Scalability 40

O'Reilly Software

MARCH 7, 2018

Build a more scalable, composable, and functional architecture for interconnecting systems and applications. Welcome to a new world of data-driven systems. Today, data needs to be available at all times, serving its users—both humans and computer systems—across all time zones, continuously, in close to real time.

Transportation 72

Transportation Java Programming Architecture 72

The Netflix TechBlog

MARCH 6, 2019

Mounting object storage in Netflix’s media processing platform By Barak Alon (on behalf of Netflix’s Media Cloud Engineering team) MezzFS (short for “Mezzanine File System”) is a tool we’ve developed at Netflix that mounts cloud objects as local files via FUSE. MezzFS can be configured to cache objects on the local disk. Regional caching? —?Netflix

Media 214

Media Storage Processing Cache 214