A talk on how to think about choosing a distributed messaging technology, and some notes on how to avoid locking yourself into a single choice, keeping your platform able to grow as needs change.
Nancy is a lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono. The goal of the framework is to stay out of the way as much as possible and provide a super-duper-happy-path to all interactions. Find more about it at nancyfx.org.
This Slide deck (in English) used at the DWX Conference in Nürnberg in July 2013 and provides you with an overview of the basic elements of the framework. The presentation material as well as the demo code can be found on github at https://github.com/Timothep/Talk.NancyFx
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
A talk on how to think about choosing a distributed messaging technology, and some notes on how to avoid locking yourself into a single choice, keeping your platform able to grow as needs change.
Nancy is a lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono. The goal of the framework is to stay out of the way as much as possible and provide a super-duper-happy-path to all interactions. Find more about it at nancyfx.org.
This Slide deck (in English) used at the DWX Conference in Nürnberg in July 2013 and provides you with an overview of the basic elements of the framework. The presentation material as well as the demo code can be found on github at https://github.com/Timothep/Talk.NancyFx
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
Microservices - opportunities, dilemmas and problemsŁukasz Sowa
Presentation from Warsjawa 2014 workshop "Microservices in Scala". Topics covered:
- What are microservices?
- What's the difference between them vs monolithic
architectures?
- What are the different flavours of microservices?
Pune PHP User Meet Up : Presented my talk on when and why to use #PHP. What should be the parameters, to opt for #PHP over other languages (or say technology).
Trygve Lorentzen shows how he designs systems that the developers, support team, and decision makers at ProTeria can easily understand with the help of ServiceInsight.
Green Custard Friday Talk 5: React-Native PerformanceGreen Custard
In Green Custard's 5th Friday talk, William explores the subject of React-Native Performance.
Topics covered:
- Native: The good
- Native: The not so good
- Hybrid summary
- React-Native summary
- React-Native: Component mapping to Native
- React-Native: Architecture
- Performance
- Bridge 2.0 - The React-Native Approach
Green Custard is a custom software development consultancy. To discover more about their work and the team visit www.green-custard.com.
How are microservices in 2017 different from how we used to build them at the beginning of the decade?
More traditional Service-Oriented Architectures were defined by protocols and standards published and curated by industry consortiums. Knowledge of the architectural style usually called "microservices", on the other hand, is often in the form of patterns, cautionary tales, and tools extracted from real-world reports and software made available by organisations that have adopted this style.
Almost ten years since the first wave of such reports, the landscape has changed considerably. Many hard challenges from the past have been eased or completely solved, and a lot of the custom software created by the microservices pioneers have been made off-the-shelf open source software.
In this talk, Phil Calçado will contrast what we first found in the first generation of microservices architectures against the current generation's landscape. Let's talk about which previous common knowledge and patterns are deprecated, which ones are still active, and introduce some of the ones that have been recently added to our toolbox.
NATS: A Central Nervous System for IoT Messaging - Larry McQuearyApcera
Security, identity and scalability define the IoT landscape. Developers in any IoT ecosystem need a flexible, lightweight and secure method to communicate device status/telemetry and content that operates at the speed of a central nervous system and doesn’t rely on inflexible and outdated protocol specifications designed for point-to-point communication. Enter NATS.
NATS is an open source messaging framework based on Go that is designed for simple, secure, lightweight and scalable messaging in any language and for any platform/processor architecture.
Larry McQueary present's an overview and short demonstration on the NATS architecture and API that will demonstrate how NATS can enable “things” and backend infrastructure to communicate securely and scalably at high speed without locking in vendor-specific technology or protocols.
You can learn more about NATS at http://www.nats.io
Advanced web application architecture Way2WebMatthias Noback
How to:
- Design a clean domain model
- Model your application's use cases as application services
- Connect those well-designed layers to the world outside
Protecting your high quality domain model can be accomplished by applying a so-called ports & adapters or hexagonal architecture.
Some of the keywords for this talk: aggregate design, domain events, application services, commands, queries and events, layered architecture, ports & adapters, hexagonal architecture.
These are part of the a live session, which has a recording available at https://www.bigmarker.com/fullstaq/Show-n-Tell-Kubernetes-Ingress-with-Kong . I hope you will enjoy the live session.
What can you expect when using Kong ? Kong can help you in various use cases like API gateway for authentication or broader API management uses cases. In this specific scenario Kong is part of the Kong Ingress Controller for Kubernetes, which in essence provides HTTP(S) or HTTP/2 intelligent traffic routing, that operates at layer 7 and additionally can provide load balancing capabilities to your kubernetes cluster. To automatically obtain certificates we setup cert-manager, which provides access to ACME providers like Venafi cloud or Let's Encrypt.
OSMC 2019 | How to improve database Observability by Charles JudithNETWAYS
Delivering a database service is not a simple job but to ensure that everything is working correctly your platform needs to be observable. In this talk, I’ll talk about how we make the MySQL/MariaDB databases observable. We’ll talk about the RED, USE methods, and the golden signals. You’ll discover how we dealt with the following questions “We think the database is slow”. This talk will allow you to make your databases discoverable with open source solutions.
How Greta uses NATS to revolutionize data distribution on the InternetApcera
Dennis Mårtensson is the CTO and co-founder of Greta, a Swedish startup that wants to change the way content is delivered on the internet. Greta has developed a technology for peer-to-peer content delivery over webRTC and are using NATS to create rapid webRTC signaling.
You can learn more about NATS at http://www.nats.io. You can learn more about Greta at https://greta.io/
O'Reilly/Nginx 2016: "Continuous Delivery with Containers: The Trials and Tri...Daniel Bryant
[Many thanks to Nginx for sponsoring this O'Reilly webinar!]
Implementing a continuous delivery (CD) pipeline is not trivial, and the introduction of container technology to the development stack can introduce additional challenges and requirements. In this webcast we will look at the steps that are essential for creating an effective pipeline for creating and deploying containerized applications.
Topic covered include:
- The impact of containers on CD
- Creating a container pipeline (including functional and nonfunctional testing)
- Lessons learned the hard way
A supporting O'Reilly report "Containerizing Continuous Delivery in Java" is also available, and this contains instructions and code for how to create a Jenkins-based continuous delivery pipeline that takes a series of Java applications and containerizes them, ready for functional and nonfunctional testing, and ultimately, deployment.
NoLambda: Combining Streaming, Ad-Hoc, Machine Learning and Batch AnalysisHelena Edelson
Slides from my talk with Evan Chan at Strata San Jose: NoLambda: Combining Streaming, Ad-Hoc, Machine Learning and Batch Analysis. Streaming analytics architecture in big data for fast streaming, ad hoc and batch, with Kafka, Spark Streaming, Akka, Mesos, Cassandra and FiloDB. Simplifying to a unified architecture.
Microservices - opportunities, dilemmas and problemsŁukasz Sowa
Presentation from Warsjawa 2014 workshop "Microservices in Scala". Topics covered:
- What are microservices?
- What's the difference between them vs monolithic
architectures?
- What are the different flavours of microservices?
Pune PHP User Meet Up : Presented my talk on when and why to use #PHP. What should be the parameters, to opt for #PHP over other languages (or say technology).
Trygve Lorentzen shows how he designs systems that the developers, support team, and decision makers at ProTeria can easily understand with the help of ServiceInsight.
Green Custard Friday Talk 5: React-Native PerformanceGreen Custard
In Green Custard's 5th Friday talk, William explores the subject of React-Native Performance.
Topics covered:
- Native: The good
- Native: The not so good
- Hybrid summary
- React-Native summary
- React-Native: Component mapping to Native
- React-Native: Architecture
- Performance
- Bridge 2.0 - The React-Native Approach
Green Custard is a custom software development consultancy. To discover more about their work and the team visit www.green-custard.com.
How are microservices in 2017 different from how we used to build them at the beginning of the decade?
More traditional Service-Oriented Architectures were defined by protocols and standards published and curated by industry consortiums. Knowledge of the architectural style usually called "microservices", on the other hand, is often in the form of patterns, cautionary tales, and tools extracted from real-world reports and software made available by organisations that have adopted this style.
Almost ten years since the first wave of such reports, the landscape has changed considerably. Many hard challenges from the past have been eased or completely solved, and a lot of the custom software created by the microservices pioneers have been made off-the-shelf open source software.
In this talk, Phil Calçado will contrast what we first found in the first generation of microservices architectures against the current generation's landscape. Let's talk about which previous common knowledge and patterns are deprecated, which ones are still active, and introduce some of the ones that have been recently added to our toolbox.
NATS: A Central Nervous System for IoT Messaging - Larry McQuearyApcera
Security, identity and scalability define the IoT landscape. Developers in any IoT ecosystem need a flexible, lightweight and secure method to communicate device status/telemetry and content that operates at the speed of a central nervous system and doesn’t rely on inflexible and outdated protocol specifications designed for point-to-point communication. Enter NATS.
NATS is an open source messaging framework based on Go that is designed for simple, secure, lightweight and scalable messaging in any language and for any platform/processor architecture.
Larry McQueary present's an overview and short demonstration on the NATS architecture and API that will demonstrate how NATS can enable “things” and backend infrastructure to communicate securely and scalably at high speed without locking in vendor-specific technology or protocols.
You can learn more about NATS at http://www.nats.io
Advanced web application architecture Way2WebMatthias Noback
How to:
- Design a clean domain model
- Model your application's use cases as application services
- Connect those well-designed layers to the world outside
Protecting your high quality domain model can be accomplished by applying a so-called ports & adapters or hexagonal architecture.
Some of the keywords for this talk: aggregate design, domain events, application services, commands, queries and events, layered architecture, ports & adapters, hexagonal architecture.
These are part of the a live session, which has a recording available at https://www.bigmarker.com/fullstaq/Show-n-Tell-Kubernetes-Ingress-with-Kong . I hope you will enjoy the live session.
What can you expect when using Kong ? Kong can help you in various use cases like API gateway for authentication or broader API management uses cases. In this specific scenario Kong is part of the Kong Ingress Controller for Kubernetes, which in essence provides HTTP(S) or HTTP/2 intelligent traffic routing, that operates at layer 7 and additionally can provide load balancing capabilities to your kubernetes cluster. To automatically obtain certificates we setup cert-manager, which provides access to ACME providers like Venafi cloud or Let's Encrypt.
OSMC 2019 | How to improve database Observability by Charles JudithNETWAYS
Delivering a database service is not a simple job but to ensure that everything is working correctly your platform needs to be observable. In this talk, I’ll talk about how we make the MySQL/MariaDB databases observable. We’ll talk about the RED, USE methods, and the golden signals. You’ll discover how we dealt with the following questions “We think the database is slow”. This talk will allow you to make your databases discoverable with open source solutions.
How Greta uses NATS to revolutionize data distribution on the InternetApcera
Dennis Mårtensson is the CTO and co-founder of Greta, a Swedish startup that wants to change the way content is delivered on the internet. Greta has developed a technology for peer-to-peer content delivery over webRTC and are using NATS to create rapid webRTC signaling.
You can learn more about NATS at http://www.nats.io. You can learn more about Greta at https://greta.io/
O'Reilly/Nginx 2016: "Continuous Delivery with Containers: The Trials and Tri...Daniel Bryant
[Many thanks to Nginx for sponsoring this O'Reilly webinar!]
Implementing a continuous delivery (CD) pipeline is not trivial, and the introduction of container technology to the development stack can introduce additional challenges and requirements. In this webcast we will look at the steps that are essential for creating an effective pipeline for creating and deploying containerized applications.
Topic covered include:
- The impact of containers on CD
- Creating a container pipeline (including functional and nonfunctional testing)
- Lessons learned the hard way
A supporting O'Reilly report "Containerizing Continuous Delivery in Java" is also available, and this contains instructions and code for how to create a Jenkins-based continuous delivery pipeline that takes a series of Java applications and containerizes them, ready for functional and nonfunctional testing, and ultimately, deployment.
NoLambda: Combining Streaming, Ad-Hoc, Machine Learning and Batch AnalysisHelena Edelson
Slides from my talk with Evan Chan at Strata San Jose: NoLambda: Combining Streaming, Ad-Hoc, Machine Learning and Batch Analysis. Streaming analytics architecture in big data for fast streaming, ad hoc and batch, with Kafka, Spark Streaming, Akka, Mesos, Cassandra and FiloDB. Simplifying to a unified architecture.
Fast and Simplified Streaming, Ad-Hoc and Batch Analytics with FiloDB and Spa...Helena Edelson
O'Reilly Webcast with Myself and Evan Chan on the new SNACK Stack (playoff of SMACK) with FIloDB: Scala, Spark Streaming, Akka, Cassandra, FiloDB and Kafka.
Microservices and Self-contained System to Scale AgileEberhard Wolff
Architectures like Microservices and Self-contained Systems provide a way to support agile processes and scale them. Held at JUG Saxony Day 2016 in Dresden.
There are many different deployment options - package managers, tools like Chef or Puppet, PaaS and orchestration tools. This presentation give an overview of these tools and approaches like idempotent installation or immutable server.
Held at Continuous Lifecycle 2016
How to Split Your System into MicroservicesEberhard Wolff
Splitting a system into microservices is a challenging task. This talk shows how ideas like Bounded Context, migration scenarios and technical constraints can be used to build a microservice architecture. Held at WJAX 2016.
Building Reactive Distributed Systems For Streaming Big Data, Analytics & Mac...Helena Edelson
Building Self Healing, Intelligent Platforms, systems that learn, multi-datacenter, removing human intervention with ML. Reactive Summit 2016 @helenaedelson
Lambda Architecture with Spark, Spark Streaming, Kafka, Cassandra, Akka and S...Helena Edelson
Regardless of the meaning we are searching for over our vast amounts of data, whether we are in science, finance, technology, energy, health care…, we all share the same problems that must be solved: How do we achieve that? What technologies best support the requirements? This talk is about how to leverage fast access to historical data with real time streaming data for predictive modeling for lambda architecture with Spark Streaming, Kafka, Cassandra, Akka and Scala. Efficient Stream Computation, Composable Data Pipelines, Data Locality, Cassandra data model and low latency, Kafka producers and HTTP endpoints as akka actors...
Reactive stack paints a very rosy picture of the way to develop the scalable applications focusing on the 4 fundamental things that are responsive, elastic, resilient and asynchronous communication. The principles are pretty simple but there are a lot of pitfalls that nobody talks about.
The challenges are numerous to build the system in the right way and in this talk we will focus on what are these pitfalls and how can we avoid them. We will be exploring the myth that once you adapt to it the journey will be smooth and show how these distributed systems add to additional complexity but can be managed by making smart decisions. I will share our experience of building Reactive Applications and how we have overcome the difficulties that we encounter.
A presentation to explain the microservices architecture, the pro and the cons, with a view on how to migrate from a monolith to a SOA architecture. Also, we'll show the benefits of the microservices architecture also for the frontend side with the microfrontend architecture.
Introduction to Microservices Architecture - SECCOMP 2020Rodrigo Antonialli
This presentation gives an high-level overview of what is a Microservices Architecture, as a summary from well-known sources about the topic regarding it's characteristics, advantages and challenges, along with some enabling technologies.
Docker microservices and the service meshDocker, Inc.
The nature of containerized, cloud-native applications is rapidly advancing with a fundamentally different architecture that will rely on service meshes with smarter proxies, traffic management, and enhanced observability for cooperating microservices, serverless functions, and complex workflows. In this session we will highlight the features that characterize this architectural transformation in the Docker cloud-native ecosystem.
Slides for my keynote at incontrodevops.it, where I talked about distributed architectures, microservices, kubernetes and cloud native environments. All to get to the question: are microservices worth it?
The working architecture of node js applications open tech week javascript ...Viktor Turskyi
We launched more than 60 projects, developed a web application architecture that is suitable for projects of completely different sizes. In the talk, I'll analyze this architecture, will consider the question what to choose “monolith or microservices”, will show the main architectural mistakes that developers make.
SkopjeTechMeetup is an initiative by Tricode for supporting and strengthening the Macedonian IT community. The meetups have the goal of establishing a networking platform for the IT crowd where they can share their know-how, best practices, as well as mutual inspiration.
The 6th STM installment took place at Piazza Liberta, Skopje last Thursday, the 29th of September. This meetup hosted 3 seasoned speakers, each accomplished in their own way.
Here's the presentation of Lazo Apostolovski.
The Microservices Architecture pattern is getting a lot of attention lately, even at the beginning of its adoption lifecycle. It has significant benefits when it comes to enabling agile development and delivering complex enterprise applications. Adopting Microservices can be a tricky and dangerous process. Making bad decisions early can lead to serious complications, expences and maybe even failure.
NewsCred Dhaka hosted an interactive session on MircroServices. The main focus of the event was to provide a platform for people to share their experiences, understand the architecture and hear about the challenges and benefits of continuous deployment.
Presenters: Asif Rahman (CTO), Brian Schmitz (Director of Engineering), Rana Khandakar (Lead Software Engineer), Ashrafuzzaman Jitu (Engineering Manager), and Zahiduzzaman Setu (Senior Software Engineer), as they share their experiences with MicroServices and in the process find out if it is right for you.
Reactive Micro Services with Java seminarGal Marder
Abstract –
Micro services is the current architectural trend. In this seminar, we'll go over the concepts behind a good micro-service implementation and see how to implement it with available Java frameworks.
Target Audience
Java developers, team leaders, project managers.
Prerequisites
Java knowledge
Contents:
Overview of Micro-service architecture principles.
- Technical stacks:
- The Spring Stack (Spring Boot & Cloud)
- Lagom
- Akka and Play
- Vertx
- Complementaries
- Discovery
- Configuration
- Monitoring
These are my summarized notes from all the microservices session I attended at QCon 2015. These sessions had tons of learning around how to scale microservices and avoid common pitfalls
Microservices for performance - GOTO Chicago 2016Peter Lawrey
How do Microservices and Trading Systems overlap?
How can one area learn from the other?
How can we test components of microservices?
Is there a library which helps us implement and test these services?
Viktor Turskyi "Effective NodeJS Application Development"Fwdays
For 15 years in development, I managed to take part in the creation of a large number of various projects. I have already made a number of talks on the working architecture of Web applications, but this is only part of the efficient development puzzle. We will consider the whole process from the start of the project to its launch in production. I’ll tell you how we approach the ideas of the “12 Factor App”, how we use the docker, discuss environment deployment issues, security issues, testing issues, discuss the nuances of SDLC and much more.
If you've ever wondered just what happens when you run go test, this talk is for you. Covering flags, pre-checks, incompatible options, and even a few interesting tricks, this talks goes deep into the test tool, but avoids going so deep that the talk turns into a session on how builds actually work - it treads somewhere in the middle.
How hard could it be to take 1-1 communication with Go Channels and turn it into 1-many to enable fanout?
As hard as you want to make it! In this talk, i'll walk through the problem space, how I solved it, and demonstrate some code showing how simple (or not) it can be.
https://github.com/StabbyCutyou/spub
This is a very quick talk about code comments. The aim is to make you aware of the importance of comments, but also to give you the impression that you should be commenting WHY something was done, not just WHAT
A talk on how to think about choosing a distributed messaging technology, and some notes on how to avoid locking yourself into a single choice, keeping your platform able to grow as needs change.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
TOP 10 B TECH COLLEGES IN JAIPUR 2024.pptxnikitacareer3
Looking for the best engineering colleges in Jaipur for 2024?
Check out our list of the top 10 B.Tech colleges to help you make the right choice for your future career!
1) MNIT
2) MANIPAL UNIV
3) LNMIIT
4) NIMS UNIV
5) JECRC
6) VIVEKANANDA GLOBAL UNIV
7) BIT JAIPUR
8) APEX UNIV
9) AMITY UNIV.
10) JNU
TO KNOW MORE ABOUT COLLEGES, FEES AND PLACEMENT, WATCH THE FULL VIDEO GIVEN BELOW ON "TOP 10 B TECH COLLEGES IN JAIPUR"
https://www.youtube.com/watch?v=vSNje0MBh7g
VISIT CAREER MANTRA PORTAL TO KNOW MORE ABOUT COLLEGES/UNIVERSITITES in Jaipur:
https://careermantra.net/colleges/3378/Jaipur/b-tech
Get all the information you need to plan your next steps in your medical career with Career Mantra!
https://careermantra.net/
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
4. Why people use them
● “It keeps the code much cleaner”
● “It’s easy to write services that just do one thing”
● “They’re faster than monoliths”
● “It’s easier for engineers to not all work in the same codebase”
● “We just autoscale them in clusters and also maybe Docker is in there
somewhere”
5. Cleaner Code?
● Microservices are not a prerequisite for writing good code
● You don’t need a network boundary to implement a Service Oriented
Architecture in your applications.
● Keeping logic out of models and controllers and into domain-driven services will
give you
○ A clean set of objects to use which control all important behaviors
○ A proper chain of dependencies, cleanly represented by the services interface
○ An easy injection point for mocking and stubbing
● Service Oriented Architecture starts in the code itself
6. Easier?
● Writing services that only own distinct pieces of the domain isn’t always “easy”
● Crossing multiple service boundaries adds a lot of complexity
● If multiple services are involved in reading/writing data for a single logical
“request”, you now have distributed transactions
● Distributed Transactions are never easy
● What happens if Service 3 of 5 fails? Does that matter?
● What happens if you make multiple concurrent service calls, and half fail?
● Each interaction needs a custom approach for handling it’s unique failure cases
7. Faster?
● This is anecdotal
● “We took a really old codebase and re-wrote it, now things are faster!”
● In general, you can more easily keep microservices free of bloat
○ But you can do that in Monolithic applications as well
○ It takes discipline, but this is true of any proper practice in engineering
● Often, much of the performance gains are inherent to a new language or
technology being chosen
○ Not because a microservice in general was a better idea
8. Easier for Engineers?
● You have to run lots of different services to make even the smallest change
● Testing to prevent breaking changes between services can be complicated, time
consuming
● Individual teams owning individual projects breeds “Not my problem” syndrome
● Larger, collaborative codebases can help engineers share knowledge and effort
9. Microservices + Docker == scalable clusters
● True fact
● But you can do it with a monolithic codebase as well
● You can direct traffic at the edge of your system to various clusters
○ You can even design “internal” and “public” facing versions of each cluster
● This lets you respond to particular surges in traffic across individual parts of your
ecosystem
● As well as tune the clusters for their specific workloads
● Microservices work well for this
○ But so can Monoliths
10. When to use Microservices?
● When you truly understand the domain you’re building around
● When you can reason about what distributed transactions mean to your apps and
services
● When you have the right monitoring to know how the larger number of
distributed services are behaving
● When you can demonstrate that there is a real benefit to the organization by
implementing the pattern over your current codebase