The things we don't see – stories of Software, Scala and AkkaKonrad Malawski
Opening keynote for Scalapeno, Tel Aviv 2016.
The talk focuses and explains the things we don't often see explicitly and/or don't notice when doing our daily work, yet make up a large part of the ecosystem and maturity of the ecoststem as a whole. We also dive into some of the more confusing bits around using the same word about different things in software
[Japanese] How Reactive Streams and Akka Streams change the JVM Ecosystem @ R...Konrad Malawski
Japanese subtitles by Yugo Maede-san, thank you very much. Japanese subtitled version of the "How Reactive Streams and Akka Streams change the JVM Ecosystem". http://www.slideshare.net/ktoso/how-reactive-streams-akka-streams-change-the-jvm-ecosystem
This is a work in progress of a talk for the Scala User Group in Tokyo.
It touches on basics and some ideas behind Reactive Streams as well as the implementation shipped by Akka.
The things we don't see – stories of Software, Scala and AkkaKonrad Malawski
Opening keynote for Scalapeno, Tel Aviv 2016.
The talk focuses and explains the things we don't often see explicitly and/or don't notice when doing our daily work, yet make up a large part of the ecosystem and maturity of the ecoststem as a whole. We also dive into some of the more confusing bits around using the same word about different things in software
[Japanese] How Reactive Streams and Akka Streams change the JVM Ecosystem @ R...Konrad Malawski
Japanese subtitles by Yugo Maede-san, thank you very much. Japanese subtitled version of the "How Reactive Streams and Akka Streams change the JVM Ecosystem". http://www.slideshare.net/ktoso/how-reactive-streams-akka-streams-change-the-jvm-ecosystem
This is a work in progress of a talk for the Scala User Group in Tokyo.
It touches on basics and some ideas behind Reactive Streams as well as the implementation shipped by Akka.
Event sourcing and Domain Driven Design are techniques that allow you to model your business more truthfully - by expressing it via commands, events and aggregates etc. The new akka-persistence module, included in Akka since the 2.3 release is aimed at easing implementing event sourced applications. Turns out the actor model and events as messages fit in here perfectly. During this session we'll discover how to build reactive, event sourcing based apps using the new abstractions provided, and investigate how to implement your own journals to back these persistent event sourced actors.
End to End Akka Streams / Reactive Streams - from Business to SocketKonrad Malawski
The Reactive Streams specification, along with its TCK and various implementations such as Akka Streams, is coming closer and closer with the inclusion of the RS types in JDK 9. Using an example Twitter-like streaming service implementation, this session shows why this is a game changer in terms of how you can design reactive streaming applications by connecting pipelines of back-pressured asynchronous processing stages. The presentation looks at the example from two perspectives: a raw implementation and an implementation addressing a high-level business need.
Reactive Streams are a cross-company initiative first ignited by Lightbend in 2013, soon to be joined by RxJava and other implementations focused on solving a very similar problem: asynchronous non-blocking stream processing, with guaranteed over-flow protection. Fast forward to 2016 and now these interfaces are part of JSR-266 and proposed for JDK9.
In this talk we'll first disambiguate what the word Stream means in this context (as it's been overloaded recently by various different meanings), then look at how its protocol works and how one might use it in the real world showing examples using existing implementations.
We'll also have a peek into the future, to see what the next steps for such collaborative protocols and the JDK ecosystem are in general.
Distributed Consensus A.K.A. "What do we eat for lunch?"Konrad Malawski
Distributed Consensus is everywhere! Even if not obvious at first, most apps nowadays are distributed systems, and these sometimes have to "agree on a value", this is where consensus algorithms come in. In this session we'll look at the general problem and solve a few example cases using the RAFT algorithm implemented using Akka's Actor and Cluster modules.
Akka persistence == event sourcing in 30 minutesKonrad Malawski
Akka 2.3 introduces akka-persistence, a wonderful way of implementing event-sourced applications. Let's give it a shot and see how DDD and Akka are a match made in heaven :-)
Akka-chan's Survival Guide for the Streaming WorldKonrad Malawski
In this talk we dive into the various kinds of "Streaming", what it actually means, where to use which technology and specifically take a look at Akka Streams and their specific use case and strengths.
This talk was delivered at JavaOne 2013, together with Andrzej Grzesik. We mention the new Date APIs, changes to Collections as well as Streams APIs and of course... Lambdas!
Janab e Zainab Ki Shakhsiyat (Hindi) - By: Syed ul Ulema Syed Ali Naqi Naqvi ...Jamal Mirza
Janab e Zainab Ki Shakhsiyat - By: Syed ul Ulema Syed Ali Naqi Naqvi t.s.
" Aap Hazrat Ali Bin Abi Talib a.s. aur Janab e Fatima Zehra s.a. ki badi Beiti aur Paighambar e Islam ki badi Nawasi thiiN. Iss haisiyat se aap Karbala ke waaqaey meiN Hazrat Imam Hussain a.s. ke baad sabse zyada mashoor shakhsiyat thiiN. .. .. "
Short lightning talk about the HBase plugin for Akka Persistence and how it's how key design was specifically tuned for increasing numeric sequential idenfitiers, so that the cluster can be utilised properly.
https://github.com/ktoso/akka-persistence-hbase
These are the slides I've used during my talk on the "Academic It Festival" 2011 in Cracow. It's a very much extended and polished version of my previous talk. The slides are meant to be fun taken as interruptions of live coding (live comitting :-)) so that everyone understands what acutlly just happened with the commit history :-) The audience was exactly 211 people - yay! :-)
Event sourcing and Domain Driven Design are techniques that allow you to model your business more truthfully - by expressing it via commands, events and aggregates etc. The new akka-persistence module, included in Akka since the 2.3 release is aimed at easing implementing event sourced applications. Turns out the actor model and events as messages fit in here perfectly. During this session we'll discover how to build reactive, event sourcing based apps using the new abstractions provided, and investigate how to implement your own journals to back these persistent event sourced actors.
End to End Akka Streams / Reactive Streams - from Business to SocketKonrad Malawski
The Reactive Streams specification, along with its TCK and various implementations such as Akka Streams, is coming closer and closer with the inclusion of the RS types in JDK 9. Using an example Twitter-like streaming service implementation, this session shows why this is a game changer in terms of how you can design reactive streaming applications by connecting pipelines of back-pressured asynchronous processing stages. The presentation looks at the example from two perspectives: a raw implementation and an implementation addressing a high-level business need.
Reactive Streams are a cross-company initiative first ignited by Lightbend in 2013, soon to be joined by RxJava and other implementations focused on solving a very similar problem: asynchronous non-blocking stream processing, with guaranteed over-flow protection. Fast forward to 2016 and now these interfaces are part of JSR-266 and proposed for JDK9.
In this talk we'll first disambiguate what the word Stream means in this context (as it's been overloaded recently by various different meanings), then look at how its protocol works and how one might use it in the real world showing examples using existing implementations.
We'll also have a peek into the future, to see what the next steps for such collaborative protocols and the JDK ecosystem are in general.
Distributed Consensus A.K.A. "What do we eat for lunch?"Konrad Malawski
Distributed Consensus is everywhere! Even if not obvious at first, most apps nowadays are distributed systems, and these sometimes have to "agree on a value", this is where consensus algorithms come in. In this session we'll look at the general problem and solve a few example cases using the RAFT algorithm implemented using Akka's Actor and Cluster modules.
Akka persistence == event sourcing in 30 minutesKonrad Malawski
Akka 2.3 introduces akka-persistence, a wonderful way of implementing event-sourced applications. Let's give it a shot and see how DDD and Akka are a match made in heaven :-)
Akka-chan's Survival Guide for the Streaming WorldKonrad Malawski
In this talk we dive into the various kinds of "Streaming", what it actually means, where to use which technology and specifically take a look at Akka Streams and their specific use case and strengths.
This talk was delivered at JavaOne 2013, together with Andrzej Grzesik. We mention the new Date APIs, changes to Collections as well as Streams APIs and of course... Lambdas!
Janab e Zainab Ki Shakhsiyat (Hindi) - By: Syed ul Ulema Syed Ali Naqi Naqvi ...Jamal Mirza
Janab e Zainab Ki Shakhsiyat - By: Syed ul Ulema Syed Ali Naqi Naqvi t.s.
" Aap Hazrat Ali Bin Abi Talib a.s. aur Janab e Fatima Zehra s.a. ki badi Beiti aur Paighambar e Islam ki badi Nawasi thiiN. Iss haisiyat se aap Karbala ke waaqaey meiN Hazrat Imam Hussain a.s. ke baad sabse zyada mashoor shakhsiyat thiiN. .. .. "
Short lightning talk about the HBase plugin for Akka Persistence and how it's how key design was specifically tuned for increasing numeric sequential idenfitiers, so that the cluster can be utilised properly.
https://github.com/ktoso/akka-persistence-hbase
These are the slides I've used during my talk on the "Academic It Festival" 2011 in Cracow. It's a very much extended and polished version of my previous talk. The slides are meant to be fun taken as interruptions of live coding (live comitting :-)) so that everyone understands what acutlly just happened with the commit history :-) The audience was exactly 211 people - yay! :-)
Craft, Engineer, and Make & Take Activities for “A Universe of Stories”NCIL - STAR_Net
Looking for cheap, easy, accessible, and FUN hands-on experiences for your patrons this summer? Are you trying to spice up your normal craft and make and take activities with a space science theme? If so, then this is the webinar for you! Join us as we take a look at several different activities from the STEM Activity Clearinghouse Universe of Stories Collection that are hands-on, easy to facilitate, and sure to inspire curiosity.
A talk given in 2010 on how developers of CFML applications can present large amounts of information - both the theory behind thought displays and off-the-shelf library options.
This presentation is about Pharo status and why it is important to support our community. I presented these slides at FAST smalltalks 2014, Cordoba, Argentina.
Libraries have been places of discovery and learning for a long time, but they are now taking it a step further, thanks to the makerspace movement, by providing an initial spark for ideas that may grow into an intellectual flame down the road. A makerspace is a collaborative learning environment where people of all ages and with common interests (e.g., science, technology, engineering, arts, and math — STEAM) can meet, socialize and/or collaborate while sharing innovative ideas and learning new skills. People can now visit their local library makerspace and gain hands-on experiences with emerging technologies that they probably do not have access to otherwise. Lifelong learning is a vital component for the continued success of libraries and makerspaces are just another aspect helping to make all this happen. In this webinar,
+ Learn how to create a library makerspace on little to no budget.
+ Discover the process/resources used to maintain an engaging makerspace that will thrive for many years.
+ Understand wholeheartedly that the library makerspace is a perfect place to share emerging technologies with patrons, so that they can become well-informed citizens and responsible users of technology.
+ Gain an appreciation as to what other libraries are doing in this new exciting space.
+ Acquire numerous programming ideas to help foster creativity and learning.
+ Survey the emerging technology landscape for new learning prospects to include in your makerspace.
+ Create a growing “Rolodex” of opportunities for partnerships to help boost your makerspace outreach.
Why do *you* need a strong open-source Smalltalk!ESUG
Title part2: Why do *you* need a strong open-source Smalltalk!
Speaker: Stephane Ducasse
Wed, August 20, 11:00am – 11:45am
Video: https://www.youtube.com/watch?v=Nab6ArIzo6c
Abstract: In this talk we will present the advances and new features in Pharo 3.0. We will present the current work on Pharo 4.0 and beyond. We will also present our new work around the Pharo consortium.
Bio: Stephane is directeur de recherche at Inria. He is scientific deputee of the Inria Lille Nord Europe lab where he leads the RMoD (http://rmod.lille.inria.fr) team. He is expert in two domains: object-oriented language design and reengineering. He worked on traits, composable groups of methods, and this work got some impact. Traits have been introduced in AmbiantTalk, and Squeak/Pharo, Perl, PHP and under a variant into Scala, Fortress of SUN Microsystems. He is one of the developer of Pharo http://www.pharo.org/ a new dynamic language used in industry and academia. He is also expert on software quality, program understanding, program visualizations, reengineering and metamodeling. He is one of the developer of Moose, an open-source software analysis platform http://www.moosetechnology.org/. He is working with http://www.synectique.eu/ a company building dedicated tools for advanced software analysis.
Networks and Types - the Future of Akka @ ScalaDays NYC 2018Konrad Malawski
A look into the upcoming soon-to-be-stable typed Actor APIs in Akka. Shown at Scala Days NYC 2018, while Akka 2.5.13 was out. Looking at what will become the stable Akka Typed.
In this talk we explain the basics of Typed Actors as they are to land in Akka as a stable module in 2018. Typed Actors ("Akka Typed") re-introduce typesafety to concurrency and distributed systems thanks to the abstraction of a typed actor reference.
ScalaSwarm 2017 Keynote: Tough this be madness yet theres method in'tKonrad Malawski
A talk about the implications and context around API design. How APIs come to be and how to understand them. This talk was delivered as opening keynote, setting the tone, for the ScalaSwarm conference in Porto, Portugal in 2017.
Building a Reactive System with Akka - Workshop @ O'Reilly SAConf NYCKonrad Malawski
Intense 3 hour workshop covering Akka Actors, Cluster, Streams, HTTP and more. Including very advanced patterns.
Presented with Henrik Engstrom at O'Reilly Software Architecture Conference in New York City in 2017
Akka Streams (0.7) talk for the Tokyo Scala User Group, hosted by Dwango.
Akka streams are an reactive streams implementation which allows for asynchronous back-pressured processing of data in complext pipelines. This talk aims to highlight the details about how reactive streams work as well as some of the ideas behind akka streams.
Field Employee Tracking System| MiTrack App| Best Employee Tracking Solution|...informapgpstrackings
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Navigating the Metaverse: A Journey into Virtual Evolution"Donna Lenk
Join us for an exploration of the Metaverse's evolution, where innovation meets imagination. Discover new dimensions of virtual events, engage with thought-provoking discussions, and witness the transformative power of digital realms."
Listen to the keynote address and hear about the latest developments from Rachana Ananthakrishnan and Ian Foster who review the updates to the Globus Platform and Service, and the relevance of Globus to the scientific community as an automation platform to accelerate scientific discovery.
May Marketo Masterclass, London MUG May 22 2024.pdfAdele Miller
Can't make Adobe Summit in Vegas? No sweat because the EMEA Marketo Engage Champions are coming to London to share their Summit sessions, insights and more!
This is a MUG with a twist you don't want to miss.
We describe the deployment and use of Globus Compute for remote computation. This content is aimed at researchers who wish to compute on remote resources using a unified programming interface, as well as system administrators who will deploy and operate Globus Compute services on their research computing infrastructure.
Unleash Unlimited Potential with One-Time Purchase
BoxLang is more than just a language; it's a community. By choosing a Visionary License, you're not just investing in your success, you're actively contributing to the ongoing development and support of BoxLang.
In software engineering, the right architecture is essential for robust, scalable platforms. Wix has undergone a pivotal shift from event sourcing to a CRUD-based model for its microservices. This talk will chart the course of this pivotal journey.
Event sourcing, which records state changes as immutable events, provided robust auditing and "time travel" debugging for Wix Stores' microservices. Despite its benefits, the complexity it introduced in state management slowed development. Wix responded by adopting a simpler, unified CRUD model. This talk will explore the challenges of event sourcing and the advantages of Wix's new "CRUD on steroids" approach, which streamlines API integration and domain event management while preserving data integrity and system resilience.
Participants will gain valuable insights into Wix's strategies for ensuring atomicity in database updates and event production, as well as caching, materialization, and performance optimization techniques within a distributed system.
Join us to discover how Wix has mastered the art of balancing simplicity and extensibility, and learn how the re-adoption of the modest CRUD has turbocharged their development velocity, resilience, and scalability in a high-growth environment.
Experience our free, in-depth three-part Tendenci Platform Corporate Membership Management workshop series! In Session 1 on May 14th, 2024, we began with an Introduction and Setup, mastering the configuration of your Corporate Membership Module settings to establish membership types, applications, and more. Then, on May 16th, 2024, in Session 2, we focused on binding individual members to a Corporate Membership and Corporate Reps, teaching you how to add individual members and assign Corporate Representatives to manage dues, renewals, and associated members. Finally, on May 28th, 2024, in Session 3, we covered questions and concerns, addressing any queries or issues you may have.
For more Tendenci AMS events, check out www.tendenci.com/events
Globus Connect Server Deep Dive - GlobusWorld 2024Globus
We explore the Globus Connect Server (GCS) architecture and experiment with advanced configuration options and use cases. This content is targeted at system administrators who are familiar with GCS and currently operate—or are planning to operate—broader deployments at their institution.
Developing Distributed High-performance Computing Capabilities of an Open Sci...Globus
COVID-19 had an unprecedented impact on scientific collaboration. The pandemic and its broad response from the scientific community has forged new relationships among public health practitioners, mathematical modelers, and scientific computing specialists, while revealing critical gaps in exploiting advanced computing systems to support urgent decision making. Informed by our team’s work in applying high-performance computing in support of public health decision makers during the COVID-19 pandemic, we present how Globus technologies are enabling the development of an open science platform for robust epidemic analysis, with the goal of collaborative, secure, distributed, on-demand, and fast time-to-solution analyses to support public health.
top nidhi software solution freedownloadvrstrong314
This presentation emphasizes the importance of data security and legal compliance for Nidhi companies in India. It highlights how online Nidhi software solutions, like Vector Nidhi Software, offer advanced features tailored to these needs. Key aspects include encryption, access controls, and audit trails to ensure data security. The software complies with regulatory guidelines from the MCA and RBI and adheres to Nidhi Rules, 2014. With customizable, user-friendly interfaces and real-time features, these Nidhi software solutions enhance efficiency, support growth, and provide exceptional member services. The presentation concludes with contact information for further inquiries.
Cyaniclab : Software Development Agency Portfolio.pdfCyanic lab
CyanicLab, an offshore custom software development company based in Sweden,India, Finland, is your go-to partner for startup development and innovative web design solutions. Our expert team specializes in crafting cutting-edge software tailored to meet the unique needs of startups and established enterprises alike. From conceptualization to execution, we offer comprehensive services including web and mobile app development, UI/UX design, and ongoing software maintenance. Ready to elevate your business? Contact CyanicLab today and let us propel your vision to success with our top-notch IT solutions.
Large Language Models and the End of ProgrammingMatt Welsh
Talk by Matt Welsh at Craft Conference 2024 on the impact that Large Language Models will have on the future of software development. In this talk, I discuss the ways in which LLMs will impact the software industry, from replacing human software developers with AI, to replacing conventional software with models that perform reasoning, computation, and problem-solving.
Gamify Your Mind; The Secret Sauce to Delivering Success, Continuously Improv...Shahin Sheidaei
Games are powerful teaching tools, fostering hands-on engagement and fun. But they require careful consideration to succeed. Join me to explore factors in running and selecting games, ensuring they serve as effective teaching tools. Learn to maintain focus on learning objectives while playing, and how to measure the ROI of gaming in education. Discover strategies for pitching gaming to leadership. This session offers insights, tips, and examples for coaches, team leads, and enterprise leaders seeking to teach from simple to complex concepts.
Code reviews are vital for ensuring good code quality. They serve as one of our last lines of defense against bugs and subpar code reaching production.
Yet, they often turn into annoying tasks riddled with frustration, hostility, unclear feedback and lack of standards. How can we improve this crucial process?
In this session we will cover:
- The Art of Effective Code Reviews
- Streamlining the Review Process
- Elevating Reviews with Automated Tools
By the end of this presentation, you'll have the knowledge on how to organize and improve your code review proces
Check out the webinar slides to learn more about how XfilesPro transforms Salesforce document management by leveraging its world-class applications. For more details, please connect with sales@xfilespro.com
If you want to watch the on-demand webinar, please click here: https://www.xfilespro.com/webinars/salesforce-document-management-2-0-smarter-faster-better/
Software Engineering, Software Consulting, Tech Lead.
Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
4. Why a reading club?
“The smartest person in the room
is a piece of paper.”
5. Long time member
Akka @ Lightbend
Various User Groups
Today’s hosts
Adam Pohorecki
Founder
Konrad `ktoso` Malawski Łukasz Dubiel
Long time member
Tomasz `LAFK` Borek
Long time member
Loves learning
Various User Groups
6. Schedule
Top 5 SCKRK whitepapers
Community Award
“Best whitepaper of the
last 5 years of SCKRK”
Discussions
Please feel free to stay and
discuss the winners/losers!
19:00 ... 19:30 ... ... ... 20:45 ... ... 21:00 ... ...
Honorable mentions
Special articles which did not
make it into the top 5
16. Top #4: Conflict-free Replicated Data Types
Conflict-free Replicated Data Types. M. Shapiro, N. Preguiça, C. Baquero, M. Zawirski (France, October 2011)
17. Top #3: Guide: Writing Testable Code
1. Everybody writes tests, not everybody
does Big Data or epic scalability
2. Good points!
a. Class does too much
b. Constructor does real work
c. Digging into collaborators
3. Well-structured!
28. Top #1: “The Paxos Saga” / Paxos Made Simple
- Time, Clocks and the Ordering of Events in a Distributed System (Lamport, 1978)
- Reaching Agreement in the Presence of Faults (Lamport, 1980)
- The Byzantine Generals Problem (Lamport, 1982)
- FLP Impossibility Result (Fisher, Lynch, Paterson, 1985)
- The Part-Time Parliament (Lamport, 1998)
“My attempt at inserting some humor into the subject was a dismal failure. [...]
None of them noticed any connection between this question and the Paxos
algorithm. ”
- Paxos Made Simple (Lamport, 2001)
“The Paxos algorithm, when presented in plain English, is very simple.”
- Cheap Paxos (Lamport, 2004)
- Fast Paxos (Lamport, 2006)
- (Google) Chubby ⇐ my first whitepaper (Mike Burrows, 2006)
- (Google) Paxos Made Live (Chandra et al, 2007)
- Paxos Made Moderately Complex (Renesse et al, 2015)
- …
- “Raft – in search of an understandable consensus algorithm” (Ongaro, 2013)
http://research.microsoft.com/en-us/um/people/lamport/pubs/pubs.html
35. Honorable mentions
1. Most TXT-like
2. One of earliest holy wars we had
3. Little Endians - LSB, Big - MSB
4. Machines matter, net matters, details
matter
5. And... humorous!