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 79

Database Traffic C++ Servers 79

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. This lack of transparency is by design and provides Apple deniability while simultaneously setting low expectations, making them easier to exceed. But needs must.

Energy 79

Energy Games Engineering Design 79

Percona

JULY 6, 2023

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. Next is the table definition.

Best Practices 92

Best Practices Tuning Database Testing 92

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

Sutter's Mill

JANUARY 11, 2021

assert The C-style assert is a macro that is evaluated at execution time (hopefully enabled at least during your unit testing! A failed assertion means that we checked and found the tested variables to be in an unexpected state, which means at least that part of the program’s state is corrupt. see question 4) if NDEBUG is not set.

C++ 58

C++ Programming Code Testing 58

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 52

Latency Engineering Systems Hardware 52

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

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 53

Latency Engineering Systems Hardware 53

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. Gathering timestapms of changes made to application code during the outage.

Internet 53

Internet Internet Cache Engineering 53

The Morning Paper

APRIL 16, 2019

Testing and grading their solutions is another! Although we added tests to catch specific issues as we learned of them, we found it difficult to keep up with the diversity of possible student errors. Testing and model checking. It’s hard to exhaustively test a distributed system with traditional testing techniques.

Systems 43

Systems Efficiency Testing Strategy 43

Sutter's Mill

FEBRUARY 17, 2020

Thank you to the following for their feedback on drafts of this material: Howard Hinnant (lead designer and author of move semantics), Jens Maurer, Arthur O’Dwyer, Geoffrey Romer, Bjarne Stroustrup, Andrew Sutton, Ville Voutilainen, Jonathan Wakely. This post is an attempt to shed light on that situation.

C++ 98

C++ Testing Design Strategy 98

Smashing Magazine

AUGUST 5, 2021

Frustrating Design Patterns: Disabled Buttons. Frustrating Design Patterns: Disabled Buttons. After all, as designers and developers, we want to make it more difficult for our users to make mistakes. Part Of: Design Patterns. And because something is happening, they usually exercise a good amount of patience first.

Design 145

Design Transportation Code Systems 145

The Agile Manager

AUGUST 31, 2020

In some cases, if only a very few, these assets continue to be used because they still work very well, were thoughtfully designed, and have been well cared for over the years. A basic premise is that there are alternatives to traditional "lift and shift" strategies by retiring legacy assets in a piecemeal fashion.

Architecture 52

Architecture Code Strategy Programming 52

Dynatrace

SEPTEMBER 20, 2019

Welcome back to the blog series in which we show how you can easily solve three common problem scenarios by using Dynatrace and xMatters Flow Designer. One of the several deployment strategies is the blue/green deployment approach: In this method, two identical production environments work in parallel. Dynatrace news.

Systems 26

Systems Traffic DevOps Database 26

O'Reilly Software

MARCH 7, 2018

This is mixing concerns and leads to code that becomes strongly coupled, monolithic, hard to write, hard to read, hard to evolve, hard to test, and hard to reuse. Its strategies for flow control are either stop-and-wait (i.e., Sadly, it is very common to write logic that deeply couples the notion of IO with the processing of that IO.

Transportation 72

Transportation Java Programming Architecture 72

Smashing Magazine

AUGUST 9, 2021

Smashing Podcast Episode 41 With Eva PenzeyMoog: Designing For Safety. Smashing Podcast Episode 41 With Eva PenzeyMoog: Designing For Safety. In this episode, we’re talking about designing for safety. What does it mean to consider vulnerable users in our designs? Design for Safety from A Book Apart. Drew McLellan.

Design 98

Design Education Network Google 98

Smashing Magazine

AUGUST 19, 2021

Ethics are an important part of human-computer interaction because they keep people at the heart of the design process. As UX practitioners, we know empathy is an important part of the design process. Interaction Design Foundation. How To Build An Ethical User Research Practice At Any Organization. Devin Harold.

Code 137

Code Design Education Government 137

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. Compliance by design is a cool concept, makes life easier for developers. Day two recap. Just look at how ugly that service-oriented architecture is!”

DevOps 8

DevOps Education Innovation Metrics 8

Strategic Tech

FEBRUARY 16, 2022

Many of the practices that enable teams to move quickly are the same practices that enable highly-reliabile systems: automation, observability, testing, and design. If you’re new to domain discovery and modelling, check-out the free tools from the DDD Crew or the free kata exercise. It’s a sign of both success and ambition.

Innovation 52

Innovation Speed Google Strategy 52

The Netflix TechBlog

MARCH 6, 2019

Video encoding is what MezzFS was originally designed for and remains one of its canonical use cases, so we’ll focus on video encoding to describe the problem that MezzFS solves. Rerun a batch of replays We collect replays from actual MezzFS mounts in production, and we rerun large batches of replays for regression and performance tests.

Media 214

Media Storage Processing Cache 214