First Steps to Be Non-blocking on the Web

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This presentation by Andrii Rodionov (Senior Software Engineer, Consultant, GlobalLogic, Kyiv) was delivered at GlobalLogic Kharkiv Java Conference 2019 on June 9, 2019. Andrii listed drawbacks of the blocking approach and ways of improving performance of microservices by utilizing new features of Java 11, WebFlux, and WebClient. Video: https://youtu.be/6AQiwJj2Vk4

Technology

First Steps to Be Non-
Blocking in Web
Andrii Rodionov
@AndriiRodionov

About me
● Devoxx Ukraine
● Kotlin Night Kyiv
● JUG UA Leader

What we are developing?
User
Service
User
Amount
Service
Client
Service
“User”: “amount”
● How we usually communicate?
● RestTemplate
Microservices!

What we are developing?
User
Service
User
Amount
Service
Client
Service
“User”: “amount”
● How we usually communicate?
● RestTemplate
Microservices!
5 sec
5 sec
10 sec

What problems we have with this approach?

We should be “reactive” and non-blocking!
instead of being blocked,
reacting to notifications as operations complete
or data becomes available

To be non-blocking in Web
● Java 11
○ HttpClient#sendAsync(...)
● Project Reactor
○ Spring WebFlux
○ WebClient

To be Reactive or not to be?
● If your Spring MVC application works fine - don’t touch!
● Imperative programming is the easiest way to write,
understand, and debug code
● Reactive and non-blocking generally do not make
applications run faster

To be Reactive or not to be?
● Reactive in some cases (WebClient to execute remote calls
in parallel) can make applications faster
● On the whole, it requires more work and can increase
slightly the required processing time

To be Reactive or not to be?
The key benefit of reactive and non-blocking is:
● the ability to scale with a small,
● fixed number of threads
● and less memory

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When you think of a highly secure meeting environment, do you instantly think 'Microsoft Teams'!? Or do you think about some unknown application, troublesome UI and daunting login process...? If you think the latter - let's change that! In this session Femke will show you how using Teams Premium features can create secure, but also good looking meetings! PRETTY. Make sure your company's brand is represented before, during and after the meeting with Customization policies in place. SECURE. Lets utilize Meeting templates and Sensitivity Labels to protect your meeting and data to prevent sensitive information from being leaked. After this session, you will have a clear understanding of the capabilities of Teams Premium features and how to set up the perfect meeting that suits your organizational requirements!

ECS 2024 Teams Premium - Pretty Secure

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The presentation underscores the strategic advantage of treating design systems not just as technical assets but as vital business components that require thoughtful management, robust planning, and strategic alignment with organizational goals. Key Points Covered: - Understanding Design Systems as Business Entities: Conceptualizing design systems as internal business entities can streamline their integration and evolution within a company. - Adoption and Expansion: Elaborating on the importance of tactical adoption across organizational structures, enhancing product suites to cater to user needs and broadening scope to mobile and content authoring solutions. - Data-Driven Development: Utilizing data insights for component development ensures that resources are allocated to create valuable, widely used features. - Financial Modeling for Design Systems: Developing sustainable funding models is crucial for long-term support and success of design systems. - Promoting Internal Buy-In: Stressing on strategies for promoting design systems within the organization to increase engagement and investment from internal stakeholders.

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I'm excited to share my latest predictions on how AI, robotics, and other technological advancements will reshape industries in the coming years. The slides explore the exponential growth of computational power, the future of AI and robotics, and their profound impact on various sectors. Why this matters: The success of new products and investments hinges on precise timing and foresight into emerging categories. This deck equips founders, VCs, and industry leaders with insights to align future products with upcoming tech developments. These insights enhance the ability to forecast industry trends, improve market timing, and predict competitor actions. Highlights: ▪ Exponential Growth in Compute: How $1000 will soon buy the computational power of a human brain ▪ Scaling of AI Models: The journey towards beyond human-scale models and intelligent edge computing ▪ Transformative Technologies: From advanced robotics and brain interfaces to automated healthcare and beyond ▪ Future of Work: How automation will redefine jobs and economic structures by 2040 With so many predictions presented here, some will inevitably be wrong or mistimed, especially with potential external disruptions. For instance, a conflict in Taiwan could severely impact global semiconductor production, affecting compute costs and related advancements. Nonetheless, these slides are intended to guide intuition on future technological trends.

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This presentation dives into the practical applications of machine learning within Google's operations, providing a comprehensive overview of how to leverage AI technologies to solve real-world business challenges. Key Points Covered: - Introduction to Machine Learning at Google: Discussion on the role of ML and its evolution in enhancing Google's operational efficiency. - Experience Sharing: Insights into the team's long-term engagement with machine learning projects and the impacts on Google’s operational strategies. - Practical Applications: Real-world examples of ML applications within Google’s daily operations, providing a blueprint to adapt similar strategies. - Challenges and Solutions: Discussion on the challenges faced during the implementation of ML projects and the strategic solutions employed to overcome them. - Future of ML at Google: Insights into future trends in machine learning at Google and how they plan to continue integrating AI into their ecosystem.

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The Epson EcoTank L3210 is a high-performance and cost-efficient printer designed to meet the printing needs of both home users and small businesses. Equipped with Epson’s revolutionary EcoTank ink tank system, the Epson eliminates the need for traditional ink cartridges, thereby significantly reducing printing costs and plastic waste. With its PrecisionCore technology, this printer delivers sharp, vibrant prints for both documents and photos. Its user-friendly design ensures easy setup and operation, while its compact form factor saves valuable desk space. Whether it’s everyday printing jobs or creative projects, the Epson EcoTank L3210 provides a reliable and eco-friendly printing solution.

Buy Epson EcoTank L3210 Colour Printer Online.pptx

EasyPrinterHelp

How to differentiate Sales Cloud and CPQ on first glance might be tricky if you do not know where to look and what to look at. You will know :-) Managing the sales process within Salesforce is a common use case that can be managed with standart Sales Cloud. If you want to do entire quoting process you will find out Salesforce CPQ solution exists. What is then the difference if both can handle selling products? You will see comparison of 10 different features, which Sales Cloud and Salesforce CPQ handle differently. Simple question you will always remember if you should consider using Salesforce CPQ will be a cherry on top.

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This presentation focuses on the challenges and strategies of connecting problem definitions within product development. Key Points Covered: - Kayak's mission since its inception in 2004 to simplify travel by enabling easy comparisons of flights through technological solutions. - Discussion of the complexities within the travel industry, including the high expectations for personalized user experiences and the various stakeholder influences. - Emphasis on the necessity of maintaining agility and innovation within a mature company through continuous reassessment of processes. - An explanation of the importance of disciplined problem definition to prevent project failures and team inefficiencies. - Introduction of strategies for effective communication across teams to ensure alignment and comprehension at all levels of project development. - Exploration of various problem-solving methodologies, including how to handle conflicts within team settings regarding problem definitions and project directions.

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We're living the AI revolution and Salesforce is adapting and bring new value to their customers. Einstein products are evolving rapidly and navigating their limitations, language support, and use cases can be challenging. Let's make review of what Einstein product are available currently, what are the capabilities and what can be used for in CEE region and how Rossie.ai can help to learn Salesforce speak Czech. We will explore the Einstein roadmap and I will make a short live demo (based on your vote) of some Einstein feature.

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New customer? New industry? New cloud? New team? A lot to handle! How to ensure the success of the project? Start it well! I've created the 3 areas of focus at the beginning of the project that helped me in multiple roles (BA, PO, and Consultant). Learn from real-world experiences and discover how these insights can empower you to deliver unparalleled value to your customers right from the project's start.

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IoT Analytics Company Presentation May 2024

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Welcome to UiPath Test Automation using UiPath Test Suite series part 2. In this session, we will cover API test automation along with a web automation demo. Topics covered: Test Automation introduction API Example of API automation Web automation demonstration Speaker Pathrudu Chintakayala, Associate Technical Architect @Yash and UiPath MVP Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP

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ScyllaDB has the potential to deliver impressive performance and scalability. The better you understand how it works, the more you can squeeze out of it. But before you squeeze, make sure you know what to monitor! Watch our experienced Postgres developer work through monitoring and performance strategies that help him understand what mistakes he’s made moving to NoSQL. And learn with him as our database performance expert offers friendly guidance on how to use monitoring and performance tuning to get his sample Rust application on the right track. This webinar focuses on using monitoring and performance tuning to discover and correct mistakes that commonly occur when developers move from SQL to NoSQL. For example: - Common issues getting up and running with the monitoring stack - Using the CQL optimizations dashboard - Common issues causing high latency in a node - Common issues causing replica imbalance - What a healthy system looks like in terms of memory - Key metrics to keep an eye on This isn’t “Death-by-Powerpoint.” We’ll walk through problems encountered while migrating a real application from Postgres to ScyllaDB – and try to fix them live as well.

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This talk focuses on the practical aspects of integrating various telephony systems with Salesforce, drawing on examples from implementations in the Czech scene. It aims to inform attendees about the spectrum of telephony solutions available, from small to large scale, and their compatibility with Salesforce. The presentation will highlight key considerations for selecting a telephony provider that integrates smoothly with Salesforce, including important questions to support the decision-making process. It will also discuss methods for integrating existing telephony systems with Salesforce, aimed at companies contemplating or in the process of adopting this CRM platform. The discussion is designed to provide a straightforward overview of the steps and considerations involved in telephony and Salesforce integration, with an emphasis on functionality, compatibility, and the practical experiences of Czech companies.

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Screen flow is a powerful automation tool that is commonly designed for internal and external users. However, what about the guest users? We will dive into various methods of launching screen flows and understand how to make them publicly accessible, extending their usability to a broader audience. The presentation will also cover the implementation of security layers and highlight best practices for a smooth and protected user experience. Discover the potential of screen flows beyond conventional use and learn how to leverage them effectively.

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First Steps to Be Non-blocking on the Web

1. First Steps to Be Non- Blocking in Web Andrii Rodionov @AndriiRodionov

2. About me ● Devoxx Ukraine ● Kotlin Night Kyiv ● JUG UA Leader

3. What we are developing? User Service User Amount Service Client Service “User”: “amount” ● How we usually communicate? ● RestTemplate Microservices!

4. What we are developing? User Service User Amount Service Client Service “User”: “amount” ● How we usually communicate? ● RestTemplate Microservices! 5 sec 5 sec 10 sec

5. Can we do faster?

6. What problems we have with this approach?

7. Blocking request processing!

8. We should be “reactive” and non-blocking! instead of being blocked, reacting to notifications as operations complete or data becomes available

9. None-blocking request processing

10. To be non-blocking in Web ● Java 11 ○ HttpClient#sendAsync(...) ● Project Reactor ○ Spring WebFlux ○ WebClient

11. To be Reactive or not to be? ● If your Spring MVC application works fine - don’t touch! ● Imperative programming is the easiest way to write, understand, and debug code ● Reactive and non-blocking generally do not make applications run faster

12. To be Reactive or not to be? ● Reactive in some cases (WebClient to execute remote calls in parallel) can make applications faster ● On the whole, it requires more work and can increase slightly the required processing time

13. To be Reactive or not to be? The key benefit of reactive and non-blocking is: ● the ability to scale with a small, ● fixed number of threads ● and less memory

14. Thank you! Questions?

15. JavaDay Odesa: Deep Dive odesa.javaday.org.ua

First Steps to Be Non-blocking on the Web

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