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Practical Microservices Development Patterns: Sync vs. Async - DZone Microservices

Introduction When deciding to develop a microservice architecture, one of the main questions that come to mind is if we should follow a synchronous or an asynchronous approach for our service communication.

Synchronous Better for read-heavy service operations Generally provides immediate data consistency Potential for moderate scaling Tight coupling between services Simpler to design Requires special constructs such as circuit breakers to avoid cascading failures due to high load Asynchronous Better for write-heavy service operations Generally provide eventual data consistency Potential for higher scaling Loose coupling between services Comparatively more complicated to design Naturally resilient to traffic bursts and failures As we can see from the above properties, there is no single approach that is suitable for all scenarios.

Microservices that operate synchronously are more susceptible to issues such as losing data in a temporary outage of a service or the system failing in high load scenarios.

Figure 3: Microservice Architecture with HTTP and gRPC Communication As shown in Figure 3, the outermost service which interacts with the client (website) is the Admin service.

The website to the Admin service communication is done using HTTP, whereas the Admin service to internal microservices is done using gRPC in order to optimize their communication.

Manor Lords is Banished meets Medieval: Total War

Manor Lords is Banished meets Medieval: it's by a Lords is a just-announced medieval strategy game for PC that's part city builder, part real-time strategy battle game.

The announcement video shows off lovely-looking medieval city-building, reminiscent of fantastic city-building strategy game Banished (with a bit of Frostpunk and perhaps even Cities: Skylines thrown in).

It's all the work of a Polish solo developer who goes by the name Slavic Magic.

The idea is to create a building mechanic that recreates the growth of real medieval towns and villages.

From the official blurb: "Fields must be plowed by a team of oxen, iron bloomed in a bloomery, the sheep herded on the open pastures governed by the Lord of the Manor... "This combined with an attention to detail is the key to immersing yourself fully in the medieval fiefdom you rule.

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Don't Let This Fuzzy Image Fool You: The 'Flying Barrel' Plane Was Real

Here's What You Need To Remember: Buoyed by the Italian government funding of his project, and interest in his work from the Italian aeronautics community, Stipa patented his design in Italy, the United States, and Germany.

Some aeronautical historian do see similarities between Stipa’s tubed propeller design and turbofan engines, partially vindicating Stipa and his design--what some have called the "flying barrel".

After the Second World War, Stipa was convinced that the jet engine owed its development to his design and remained bitter about not receiving recognition.

Buoyed by the Italian government funding of his project, and interest in his work from the Italian aeronautics community, Stipa patented his design in Italy, the United States, and Germany.

Stipa’s tube design was open at the front and the back, and narrowed in the middle in order to compress air pushed inward by the propeller, to increase efficiency.

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Image of article 'BOJ offers virtual tour as headquarters off limits amid pandemic'

BOJ offers virtual tour as headquarters off limits amid pandemic

With a click of the mouse, visitors to the "Tour the BOJ from home" site enter through the central bank's massive courtyard and stroll inside the western, classical-style building with a 360-degree panoramic view of its interiors.

They can also browse a three-dimensional, virtual reality video of the building hunting for hidden "treasures" that include an old chair that had been used by the BOJ's governors and the world's first automatic bill inspection machine.

The virtual guide, available for free on the BOJ's website, was created after the central bank was forced to cancel from March a popular tour of its headquarters that attracted 19,000 visitors last fiscal year - of which nearly 10% were overseas travelers.

"What's unique about this online tour is that it's not affected by COVID-19, and that visitors can have the historical building all to themselves," said BOJ director Noriaki Kawamura.

Located in Tokyo's Nihonbashi business district, the BOJ's headquarters consist of a new complex, and an old building that was built in 1896 and designated by the government as a cultural heritage.

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Chrome for Android upgrades to 64-bit in its latest few versions

However, their immediate predecessors, 83 and 84 (also termed Chrome Stable and Beta, and thus the most likely to be run by the general population of app-users) remained 32-bit for the blog.

Android Police has observed that the freshest forms of the app's Dev and Canary variants (builds numbered 85 and 86 respectively) have gone 64-bit.

Android had adopted a 64-bit architecture on migrating from its KitKat (4.4.4) to its Lollipop (5.0) versions.

Nevertheless, Chrome has finally shown signs of migrating to this platform, starting with its newest Dev and Canary versions.

They include potentially improved security and performance: for example, the blog breaking this story has noted that Chrome for Android 85 achieves "consistently" improved scores in Octane 2.0 benchmark scores compared to 83.

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Image of article 'This motorcycle reimagines a radical 100-year-old art-deco design'

This motorcycle reimagines a radical 100-year-old art-deco design

In a small shop outside of Atlanta, Fuller recently introduced a truly one of a kind electric motorcycle–the 2029 Majestic.

It truly is 3D printing for metals–just plug in the design, select the alloy of your choice and layer by layer a strong, functional part is created just as the designer imagined it.

Bryan Heidt, Fuller’s lead metal fabricator, created the general design of the components, then sent them over to Nick Pugh, a transportation designer who’s done quite a bit of work in the movie business, most recently creating vehicles for the latest Star Wars installment.

This article was originally published by Michael Lange on Clean Fleet Report, a publication that gives its readers the information they need to move to cars and trucks with best fuel economy, including electric cars, fuel cells, plug-in hybrids, hybrids and advanced diesel and gasoline engines.

A true piece of rolling art, the 2029 Majestic is also a fully functional electric motorcycle.

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Wikimedia Announcements] Announcing a new Wikimedia project: Abstract Wikipedia

[Wikimedia Announcements] Announcing a new Wikimedia project: Abstract Wikipedia Katherine Maher kmaher at Thu Jul 2 15:56:02 UTC 2020 (A translatable version of this announcement can be found on Meta [1]) Hi all, It is my honor to introduce Abstract Wikipedia [1], a new project that has been unanimously approved by the Wikimedia Foundation Board of Trustees.

Abstract Wikipedia proposes a new way to generate baseline encyclopedic content in a multilingual fashion, allowing more contributors and more readers to share more knowledge in more languages.

It is an approach that aims to make cross-lingual cooperation easier on our projects, increase the sustainability of our movement through expanding access to participation, improve the user experience for readers of all languages, and innovate in free knowledge by connecting some of the strengths of our movement to create something new.

Abstract Wikipedia was submitted as a project proposal by Denny Vrandečić in May of 2020 [2] after years of preparation and research, leading to a detailed plan and lively discussions in the Wikimedia communities.

Every language Wikipedia community will be free to choose and moderate whether or how they would use content from this project.

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Image of article 'Xbox Series S leak hints it could struggle to run next-gen games — here's why'

Xbox Series S leak hints it could struggle to run next-gen games — here's why

The Xbox Series S is the cheaper, all-digital edition of the Xbox Series X, aimed at gamers who don't necessarily want to shell out $500/ £500 this holiday season.

Microsoft is following a similar strategy to that of the current console generation, during which it launched the powerful and pricey Xbox One X, as well as the all-digital Xbox One S. Sony is following suit with confirmation of a PS5 Digital Edition, but a new report suggests that the Xbox Series S might not be as powerful as the Series X- although consumers paying around $100 less, which is what we've heard about the digital-only PlayStation 5, should expect a somewhat scaled-back experience.

The Xbox One X offers 40 CUs but the AMD graphics architecture is pretty old now, so will the Xbox Series S outperform the most powerful console of this generation, or will gamers be better off with an Xbox One X?

The RDNA graphics architecture is much more efficient than that seen in current-gen consoles, so gamers may not have to worry about this question at all, but of course, we won't know until Microsoft fills us in on the Xbox Series S' specs.

But if the digital-only edition can't muster up the power to run games at 1080p/ 60fps, it's worth saving up the extra cash and opting for the Xbox Series X.

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Apple begins offering new Radeon Pro W5500X GPU option for Mac Pro

The new GPU is also available as a standalone MPX Module that can already be purchased at Apple’s website for $600.

Here’s how Apple describes the new Radeon Pro W5500X MPX Module: The AMD Radeon Pro W5500X with 8GB of GDDR6 memory is based on AMD’s RDNA architecture, featuring up to 5.6 teraflops of single-precision performance or 11.2 teraflops of half-precision computing.

This new module comes as a cheaper choice to the Radeon Pro W5700X MPX Module, which was introduced in April this year.

Apple today began selling a new Radeon Pro W5500X MPX Module for Mac Pro, offering users another GPU option.

In comparison, the Radeon Pro W5700X MPX Module costs $1,000.

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Apple Now Offering Radeon Pro W5500X for Mac Pro

Apple's Mac Pro can now be configured with a Radeon Pro W5550X with 8GB of GDDR6 memory, a graphics card option that's a step above the entry-level Radeon Pro 580X but not as expensive as the W5700X graphics card that Apple introduced as an option in April.

Upgrading a ‌Mac Pro‌ with the Radeon Pro W5550X costs an additional $200 over the base price of the machine.

The AMD Radeon Pro W5500X with 8GB of GDDR6 memory is based on AMD's RDNA architecture, featuring up to 5.6 teraflops of single-precision performance or 11.2 teraflops of half-precision computing.

The Radeon Pro W5500X can also be purchased as a standalone half-height MPX Module for $600.

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Image of article 'Qualcomm announces Snapdragon Wear 4100 Platforms for wearables'

Qualcomm announces Snapdragon Wear 4100 Platforms for wearables

Richer, Enhanced Experiences: The hybrid platform approach brings rich, enhanced experiences across interactive, ambient, sports, and watch modes.

Ultra-Low Power Platform: Low power optimizations include 12nm low power process technology, dual DSPs for optimal workload partitioning, support for dynamic clock andvoltage scaling, Qualcomm Sensor Assisted Positioning PDR Wearables 2.0, low power location tracking support, and an enhanced Bluetooth 5.0 architecture.

The 4G LTE mode, based on 12nm process technology, has been significantly improved from our previous platform with a dedicated DSP, low power features such as eDRX ,platform-level power management, support for Cat 4/3/1 and single/dual antennas.

Snapdragon Wear 4100+ is designed to deliver more than 85% faster performance, compared to Snapdragon Wear 3100 platform, and enhances the overall user experience with faster app launches, concurrent use cases, smoother and responsive UX, and richer photo and video experiences.

Key highlights of the platforms include: Super-Fast Performance and Connectivity: The SoC comprises of quad-core A53 processors, Qualcomm Adreno 504 class graphics processing, faster LPDDR3 memory (750MHz), and dual ISPs with support for up to16 megapixel cameras.

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Week 4 : Working on the UI

However, as things go in development, the mentors suggested changes; the UI should be incorporated in the original UI.

Some functionality is still left; Individual customization , loading multiple files and more!

I will work on it, and hopefully be done with this section of my work by the end of the week!

I am currently stuck at the Load push button.

Its supposed to load all checked files, but its only loading the last checked file.

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Image of article 'Roy Fielding's Misappropriated REST Dissertation'

Roy Fielding's Misappropriated REST Dissertation

I’m not saying that this is exactly how things happened, or that there was an actual conspiracy among irreverent startup types to misappropriate REST, but this story helps me understand how REST became a model for web service APIs when Fielding’s dissertation isn’t about web service APIs at all.

So, given that Fielding’s dissertation was all about avoiding silver bullet software architectures, how did REST become a de facto standard for web services of every kind?

But you could sum up the part of the dissertation where Fielding introduces REST as, essentially, “Listen, we just designed HTTP, so if you also find yourself designing a distributed hypermedia system you should use this cool architecture we worked out called REST to make things easier.”

I thought perhaps that there had been some chaotic experimental period where people were building APIs on top of HTTP all wrong, and then Fielding came along and presented REST as the sane way to do things.

But imagining a separate approach called “FIOH,” that borrowed the “REST” name partly just for marketing reasons, helps me account for the many disparities between what today we know as RESTful APIs and the REST architectural style that Fielding originally described.

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Tech Journalists Feel Apple Silicon May Have Just Put A Bullet In Current MacBooks

Apple’s current line of Macbook Pros and Macbook Airs will certainly continue to function, but journalists are particularly concerned that these devices will no longer receive support.

The first ARM -powered Apple device, a Mac Mini like device, will be available on loan to app developers this week in fact.Several tech journalists believe that Apple has signaled the death knell for their own Intel-based products.

The first consumer Apple products with an ARM processor will be a 13-inch MacBook Pro and a new 24-inch iMac and they will actually be released this year .

Future devices instead will feature a custom ARM chip based on a future Apple processor architecture.

Are you concerned that Apple will drop support for these devices, or do you think Cupertino will stand behind its products for the long haul?

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Aino and Alvar Aalto's Savoy restaurant in Helsinki restored after 80 years

"With this easy atmosphere in mind, we specified a limited-edition Aalto chair that visually integrates the space with the restaurant."

For Savoy's indoor terrace, Artek has created a special edition of its Chair 611 model.

Ilse Crawford, Studioilse and Finnish brand Artek – which was co-founded by the Aaltos – were brought on board to refresh the space.

Married architects Aino and Alvar Aalto completed the original interiors of Savoy back in 1937, designing the space to reflect their penchant for natural materials and comfy furnishings.

Ilse Crawford and her eponymous studio worked with Finnish furniture brand Artek to carry out a sensitive revamp of notable Helsinki restaurant Savoy.

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Image of article 'Event-Driven Architectures for Spring Developers'

Event-Driven Architectures for Spring Developers

Bio Viktor Gamov is a Developer Advocate, Confluent.

Gary Russell is a Sr.

Principal Software Engineer, Pivotal.

About the conference Pivotal Training offers a series of hands-on, technical courses prior to SpringOne Platform.

Classes are scheduled two full days before the conference and provide you and your team an opportunity to receive in-depth, lab-based training across some of the latest Pivotal technologies.

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This week's VDF highlights include Rem Koolhaas, Carmé Pinos, Ronan & Erwan Bouroullec, Serpentine Gallery and Kvadrat

Week 11 of Virtual Design Festival featured interviews with MPavilion architects Carme Pinós and Rem Koolhaas, a live stream with Piet Hein Eek and takeovers from the Design Museum and the Serpentine Gallery.

VDF x Therme Art: In a panel talk entitled The Social Culture of Cities, speakers including artist Sonia Boyce, curator Elvira Dyangani Ose and architect David Kohn discussed how artists can feed into urban planning and design to equip our cities for the mounting challenges presented by climate change.

VDF x Arper: Italian furniture brand Arper launched two modular chair systems as part of VDF, accompanied by a live interview with the brand's CEO Armin Broger in which he discussed the brand's history and the need for adaptable products in a post-pandemic world.

VDF x Kvadrat: French designer Erwan Bouroullec joined Dezeen's Marcus Fairs for a live interview, to discuss the modular roller blind system he created with his brother Ronan for Kvadrat Shade, a subsidiary of Danish textile brand Kvadrat.

Read the summary of the first week's highlights include live interviews with Li Edelkoort and Klein Dytham Architecture plus the now-legendary VDF launch movie.

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Prostoria nestles timber pavilion amongst leafy trees in Croatian forest

The pavilion comprises a series of blocky timber "islands" dressed with furnishings by Prostoria.

Dezeen promotion: as part of its Revisiting Analogue project, furniture brand Prostoria has constructed a house-like pavilion with "transparent walls" in a forest near its factory in Croatia.

It was created in collaboration with designers Numen/For Use and Simon Morasi Piperčić as part of Prostoria's Revisiting Analogue project, which combines architecture, design and film into an event for the local creatives.

Another island has been styled with sage-green versions of Prostoria's Polygon easy chair, which boasts a geometric steel-rod frame.

A handful of Prostoria's wide-backed Strain seats – which are meant to have comfy, armchair-like proportions – run along one island, while another features a single tan-leather chaise longue from the brand's Kontrapunkt range.

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Live talk with Erwan Bouroullec for Kvadrat Shade at Virtual Design Festival

This live stream was produced as part of a collaboration between Virtual Design Festival and Kvadrat Shade, which is a part of Kvadrat.

The live stream will begin with a presentation by Bouroullec in which he will introduce the designs.

The Bouroullecs were commissioned to work on the visual design of the highly technical product, which was engineered by Kvadrat together with Dutch window covering specialist Coulisse and fabrication expert Verosol.

Bouroullec will speak to Dezeen's founder and editor-in-chief Marcus Fairs about the concept behind the roller-blind solutions he and his brother designed.

French designer Erwan Bouroullec speaks about Kvadrat Shade, the roller-blind solution he designed with his brother Ronan for Kvadrat, in this live talk as part of today's collaboration with the Danish textile brand for VDF.

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All You Need to Know About Selenium Web Driver

Browsers: Selenium WebDriver effectively supports several browsers such as Chrome, Firefox, Safari, Internet Explorer, etc.

Selenium WebDriver architecture is completely about how the tool works with browser and automates end-to-end web application.

Also, Selenium WebDriver greatly supports several operating systems and browsers such as: Browsers: Internet Explorer, Chrome, Safari, Mozilla Firefox, Opera 11.5, and more, GhostDriveretc.

Among these, Selenium Webdriver is one of the important and widely used browser automation frameworks for various reasons.

Supports browser compatibility testing Efficiently supports cross-device testing Conclusion The above-mentioned information entirely relates topics about selenium web driver, the architecture of selenium web driver, differences between Selenium RC and Selenium WebDriver, and the top reasons for choosing selenium web driver.

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Image of article 'Xbox Architecture       |       A Practical Analysis'

Xbox Architecture | A Practical Analysis

The Microarchitecture When it comes to building a circuit that can interpret x86 instructions, Intel has come up with so many different designs for their CPUs.

Even though x86 first appeared with the release of the 16-bit CPU called Intel 8086 in 1978, the ISA has been constantly expanded with more instructions as more Intel CPUs were released (80186, 80286 and so on).

The first the Instruction Set Architecture or ‘ISA’ (the group of instructions used to command the CPU), Microarchitecture (how is the ISA implemented in silicon) and the Core (what set of components are used to package the microarchitecture to form the specific CPU model).

CPU The processor included in this console is a slightly customised version of the famous Intel Pentium III (an off-the-shelf CPU for computers) running at 733 MHz.

Back to the original question, the P6 is an interesting design, because while the CPU only understands a CISC instruction set (x86), it interprets the ISA using microcode (called ‘micro-operations’) and the unit that executes that code is built around the guidelines of RISC.

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Image of article 'You Probably Can't Run Windows on the New ARM-Based Macs'

You Probably Can't Run Windows on the New ARM-Based Macs

Sadly, the uncertainty surrounding virtualization apps like VMWare and Parallels is yet another obstacle to bringing Windows 10 to the new Macs.

Instead, Apple’s Craig Federighi says the new ARM Macs will rely on virtualization to run other operating systems.

It certainly seems like Apple could build a version of Boot Camp that works on ARM, but it has chosen not to do that.

Boot Camp has allowed x86 Mac owners to load a non-Apple operating system and run it without any virtualization overhead, but that won’t be an option once the company makes its next architecture change.

Apple has a translation platform for ARM Macs called Rosetta 2, but it will not work with virtualization software.

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Pulleys open wood shutters covering Wyoming house by Olson Kundig

Olson Kundig completed the 8,050-square-foot (748-square-metre) residence and accompanying small guest house to make the most of the availability of activities in Jackson Hole, a popular tourist destination for sports such as skiing and hiking.

Other projects near Jackson Hole, Wyoming designed for the natural landscape and skiing include the Caldera House, a ski resort wrapped in and stone by CLB Architects, formerly Carney Logan Burke, with public spaces and suites designed by Commune and a house clad with weathering steel.

The studio custom-built several furnishings for the house including wood tables used in the living and media room and bed frames.

"The house is a platform for the extreme experiences possible in a mountain climate – it acts as a preamble to the natural landscape just outside," said Olson Kundig design principal Tom Kundig.

US architecture firm Olson Kundig has installed large wooden shutters across the front of a house in Jackson Hole, Wyoming designed to take advantage of its mountainous landscape.

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