Strategic Tech

APRIL 1, 2022

This kata is split into four sections that address different aspects of architecting software systems. The second part of the workshop explores the company’s domain landscape (business processes, user journeys, products, systems, etc) using an event storm. The third part of the worskhop focuses on strategy?—?how

Architecture 52

Architecture Software Architecture Strategy Design 52

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

Alex Russell

MARCH 9, 2024

This strategy is exemplified by 1990s-era Andreesen's goal to render Windows "a poorly debugged set of device drivers" The idea is that the web is where the action is, and that the browser winning more user Jobs To Be Done follows from increasing the web platform's capability. In some sense it's a confidence-management exercise.

Benchmarking 59

Benchmarking Strategy Internet Internet 59

Percona

DECEMBER 5, 2023

The scenario Service considerations In this exercise, we wanted to perform a major version upgrade from PostgreSQL v12.16 While we’ve contemplated taking a physical backup and conducting PITR , it’s worth noting that PITR can also be executed on the existing replica or delayed replica to expedite the process. and a v15.4.

Database 74

Database Traffic C++ Servers 74

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. Functional Testing Functional testing was the most straightforward of them all: a set of tests alongside each path exercised it against the old and new endpoints.

Latency 233

Latency Cache Java Traffic 233

Percona

AUGUST 8, 2023

As such, one of the more common questions I get from my clients is whether or not their system will be able to endure an anticipated load increase. Disk IOPS The amount of disk IOPS your system uses will be somewhat related to how much of your data can fit into memory. When you saturate disk IOPS, your system is going to run slow.

Traffic 87

Traffic Cache Monitoring Database 87

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 148

Monitoring Mobile Social Media Artificial Intelligence 148

O'Reilly

JUNE 27, 2023

When a person clicked “submit,” the website would pass that form data through some backend code to process it—thereby sending an e-mail, creating an order, or storing a record in a database. Because most of those have been deployed in such a way that they are only communicating with trusted internal systems.

Social Media 88

Social Media Media Website Database 88

Dynatrace

SEPTEMBER 20, 2019

Here’s what we discussed so far: In Part 1 we explored how DevOps teams can prevent a process crash from taking down services across an organization. In doing so, they automate build processes to speed up delivery, and minimize human involvement to prevent error. Step 3 — xMatters alerts all the relevant resources.

Systems 27

Systems Traffic DevOps Database 27

Alex Russell

FEBRUARY 21, 2023

is astonishingly dense with delayed features, inadvertantly emphasising just how far behind WebKit has remained for many years and how effective the Blink Launch Process has been in allowing Chromium to ship responsibly while consensus was witheld in standards by Apple. No, this was a change in strategy. Regardless, Safari 16.4

Energy 79

Energy Games Engineering Design 79

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

All Things Distributed

OCTOBER 2, 2017

With these requirements in mind, and a willingness to question the status quo, a small group of distributed systems experts came together and designed a horizontally scalable distributed database that would scale out for both reads and writes to meet the long-term needs of our business. This was the genesis of the Amazon Dynamo database.

Internet 128

Internet Internet AWS Performance 128

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 53

Latency Engineering Systems Hardware 53

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

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. For example, try and recall the last time your team’s processes were audited for compliance against the company’s ethical standards. As UX practitioners, we know empathy is an important part of the design process.

Code 137

Code Design Education Government 137

Percona

JULY 6, 2023

Performance is one of the essential aspects of a database management system. Bitmap Index Scan The planner chooses this index scan method when the query asks for a large enough amount of data that can leverage the benefits of the bulk read, like the sequential scan, but not that large that actually requires processing ALL the table.

Best Practices 87

Best Practices Tuning Database Testing 87

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

Some opinions claim that “Benchmarks are meaningless”, “benchmarks are irrelevant” or “benchmarks are nothing like your real applications” However for others “Benchmarks matter,” as they “account for the processing architecture and speed, memory, storage subsystems and the database engine.”

Benchmarking 40

Benchmarking Database Social Media Scalability 40

The Morning Paper

NOVEMBER 14, 2019

With users statically assigned to buckets during this weekly partitioning exercise, it remains to assign buckets of users to datacenters, which is done in an online fashion via a Stable Segment Assignment algorithm. Our solver employs a local search algorithm using the “best single move” strategy. a chance to warm up.

Traffic 42

Traffic Internet Internet Latency 42

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

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

Strategic Tech

DECEMBER 12, 2019

In the real world we can be vague about our business rules and processes. If someone from a different culture with a different naming convention cannot be served by a system, it’s not good business or publicity. Consider the scenario of an appointment scheduling system for a healthcare practice.

Healthcare 10

Healthcare Software Architecture Database Software 10

Tasktop

OCTOBER 30, 2019

Scott Havens, Senior Director of Engineering at Mode Operandi, highlighted the benefits of event-based systems over legacy approaches, and how software architecture should be just as beautiful as the clothes on sale. He had a strategy. Getting feedback from auditors from get-go can simplify the process, explained Wolf.

DevOps 8

DevOps Education Innovation Metrics 8