Succeding with the Apache SOA stack

This document discusses WebSockets and Spring WebSockets. It begins by introducing WebSockets as a protocol for real-time full duplex communication over a single TCP connection. It then covers the WebSocket handshake process and JavaScript WebSocket API. Next, it discusses Java WebSocket implementations and how Spring 4 supports WebSockets and the fallback SockJS protocol. Finally, it introduces STOMP as a simple messaging protocol that can be used over WebSockets, and how Spring supports asynchronous messaging using STOMP over WebSockets.

WebSocket is a protocol that provides bidirectional communication over a single TCP connection. It uses an HTTP handshake to establish a connection and then transmits messages as frames that can contain text or binary data. The frames include a header with metadata like opcode and payload length. WebSocket aims to provide a standard for browser-based applications that require real-time data updates from a server.

This is a talk from the Open Source Day 2015 (http://opensourceday.com/start-osd-2015/) conference in Warsaw, Poland, 23.04.2015. This talk is about the Apache Software Foundation and Apache ServiceMix

HTTP, JSON, JavaScript, Map&Reduce built in to MySQL - make it happen, today. See how a MySQL Server plugin be developed to built all this into MySQL. A new direct wire between MySQL and client-side JavaScript is created. MySQL speaks HTTP, replies JSON and offers server-side JavaScript. Server-side JavaScript gets access to MySQL data and does Map&Reduce of JSON documents stored in MySQL. Fast? 2-4x faster than proxing client-side JavaScript request through PHP/Apache. Reasonable results...

ActiveMQ is an open source message broker that implements the Java Message Service (JMS) API. It allows applications written in different languages to communicate asynchronously. Apache Camel is an open source integration framework that can be used to build messaging routes between different transports and APIs using a simple domain-specific language. It provides mediation capabilities and supports common integration patterns. Both ActiveMQ and Camel aim to simplify integration between disparate systems through message-based communication.

This document discusses connectivity between web servers and application servers. It describes how the Apache HTTP Server is commonly used in front of application servers like Tomcat for security, performance and flexibility. It then discusses the Apache JServ Protocol (AJP) that is typically used for communication between Apache and Tomcat and some of its limitations. Alternatives like using Tomcat's HTTP connectors directly or Apache's native proxying and load balancing capabilities are presented as often better options. The recommendation is to use standard HTTP protocols over AJP when possible for better debuggability and stability.

This document summarizes common problems and solutions when using ActiveMQ. It addresses questions about creating JMS clients from scratch, efficiently managing connections, consuming only certain messages, reasons for locking/freezing, when a network of brokers is needed, and using a master/slave configuration. Spring JMS and selectors are recommended over building clients from scratch. Connection pooling and caching are advised for efficiency. Selectors and proper design can filter messages. Memory, prefetch limits, and cursors impact performance and need configuration. Networked brokers improve availability while master/slave configurations provide high availability.

This document discusses WebSockets as an improvement over previous "fake push" techniques for enabling real-time full duplex communication between web clients and servers. It notes that WebSockets use HTTP for the initial handshake but then provide a persistent, bi-directional connection. Examples are given of how WebSockets work and can be implemented in various programming languages including Ruby. Support in browsers and servers is also discussed.

1. The document discusses a meetup about WebSocket and SPDY protocols on July 5th, 2012 presented by Kensaku Komatsu. 2. The presentation covered introductions to WebSocket and SPDY, how they address issues with HTTP such as slow loading of multiple resources, and compared their communication models and transport protocols. 3. The main topics were introductions to WebSocket and SPDY, and a deeper dive into the WebSocket protocol including its handshake process, data framing, ping/pong functionality, and additional aspects like subprotocols and extensions.

CamelOne 2012 presentation about develop HTML5 Real Time Application with WebSocket and Apache Camel and Apache ActiveMQ

The HTML5 WebSocket API allows for true full-duplex communication between a client and server. It uses the WebSocket protocol which provides a standardized way for the client to "upgrade" an HTTP connection to a WebSocket connection, allowing for messages to be sent in either direction at any time with very little overhead. This enables real-time applications that were previously difficult to achieve with traditional HTTP requests. Common server implementations include Kaazing WebSocket Gateway, Jetty, and Node.js. The JavaScript API provides an easy way for clients to connect, send, and receive messages via a WebSocket connection.

Presentation by Peter Lubbers and Frank Salim presented at the San Francisco HTML5 User Group/GTUGSF Code Lab.

This document provides an overview of HTML5 WebSocket technology. It discusses limitations of traditional HTTP and how WebSocket enables full-duplex communication by reducing overhead and latency compared to alternative techniques like polling. The WebSocket API and protocol are introduced, along with browser support and server library options. Key benefits of WebSocket include unlimited connections per server, very small overhead, and true real-time bidirectional communication across the web.

JBoss Fuse allow you to have flexibility to deploy your Camel application on two most popular java container standards, OSGi and JavaEE, this workshop walks you through how to develop your application on JBoss EAP

This document summarizes a presentation on optimizing Joomla performance. It describes two parts to the presentation: Part 1 covers basic application-level optimizations for Joomla like keeping Joomla updated, choosing extensions wisely, simplifying templates, and using plugins and .htaccess rules to enable caching and compression. Part 2 discusses server-level optimizations like using a CDN, opcode caching with APC and Memcached, and reverse proxy servers like Nginx and Varnish. It provides configuration examples and presents results of benchmark tests showing improvements from optimizations.

Giancarlo Gomez presented on using websockets for realtime applications with ColdFusion. He began by explaining what websockets are and how they allow for bidirectional messaging with low latency compared to HTTP polling techniques. He then demonstrated how to enable and use websockets in ColdFusion, including securing connections and using websockets in a clustered environment. Finally, he discussed real world uses of websockets and issues to consider like network connections and application reloads.

This presentation is all about why Fuse technology makes live easier of Integration projects / services using Camel, Karaf & Fabric

The document discusses using Apache Camel and Apache Karaf to build distributed, asynchronous systems in a similar way to AKKA. It provides examples of building a dynamic routing system using Camel routing and JMS, as well as a modular ETL system for processing CSV files using a configurable, hot-deployable mutation framework. The examples demonstrate how to achieve scalability, modularity, and asynchronous behavior without deep knowledge of the underlying technologies through an event-driven architecture based on messaging.

WSO2 ESB is a lightweight and high-performance open source enterprise service bus (ESB) that simplifies enterprise integration. It provides mediation capabilities and abstractions to integrate diverse applications and protocols. WSO2 ESB's graphical tools and wizards make integration configurations easy without coding. It supports many protocols, standards, and integration patterns to enable a wide range of integration scenarios.

This document discusses Sicoob's migration from their homegrown Java batch framework to the Java Batch standard (JSR-352) and IBM WebSphere Application Server Liberty profile. Some key points: - Sicoob developed their own Java batch framework in 2012 but wanted to migrate as JSR-352 was finalized and for improved support. - They worked with IBM to evaluate WebSphere Developer Tools and the Liberty profile beta for developing Java batch applications. - A use case was developed to compare performance of their existing framework versus the new JSR-352 implementation on Liberty. - Sicoob's batch workload included over 500k jobs daily across 16 application servers processing various financial workflows.

The document summarizes findings from a project testing batch processing performance using J2EE. It discusses considerations for batch frameworks, infrastructure, caching, logging, design challenges, and whether to use batch processing. It also outlines the design of the batch process used, including leveraging raw JDBC, Oracle caching, and tools for performance monitoring.

A wide and shallow survey of popular frameworks for Javascript, CSS, PHP, Java, Groovy, Ruby, Perl, Python and other web oriented technologies.

Johan Edstrom discussed scaling applications by making them more asynchronous and distributed. He covered several Apache projects like Camel, Karaf, ActiveMQ, Cassandra and CXF that can help achieve this. Specifically, he showed how to: 1. Use Camel and OSGi to build asynchronous microservices that communicate via an enterprise integration pattern like a message queue. 2. Store data in Cassandra for asynchronous and high-performance access across data centers. 3. Expose APIs asynchronously using CXF and handle requests with non-blocking techniques like futures. 4. Offload business logic to an asynchronous process running on a distributed cache like HazelCast for shared data and parallel processing across nodes

This document provides an overview of Platform as a Service (PaaS) options for Java applications, including Amazon Elastic Beanstalk, Red Hat OpenShift, CloudFoundry, and Google App Engine. It discusses features of PaaS like quick deployment, automatic scaling, and reduced maintenance compared to Infrastructure as a Service (IaaS). Specific PaaS products covered include their supported languages, frameworks, and cloud integration. Questions around capabilities like databases, monitoring, and custom domains are also addressed.

This document provides an overview of Platform as a Service (PaaS) options for Java applications, including Amazon Elastic Beanstalk, Red Hat OpenShift, CloudFoundry, and CloudBees. It discusses the benefits of PaaS for quick deployment and hosting of Java applications. It then describes several popular PaaS platforms in more detail, focusing on their features, pricing, and how they compare for Java development.

This document provides an overview of cloud computing and Java platforms as a service (PaaS). It discusses infrastructure as a service (IaaS) from providers like Amazon and how PaaS offerings like Google App Engine and CloudBees abstract away infrastructure management. It notes the advantages of PaaS for development flexibility and automatic scaling but also limitations from predefined programming models. Details are provided on Google App Engine's programming model, storage options, and services. In summary, the document compares IaaS and PaaS approaches for Java applications in the cloud.

In an increasingly competitive marketplace, speed and business agility are paramount. And integration between customer-facing systems and back-end applications is more crucial than ever. At this event, you'll learn how open source software built by communities, like Apache Camel, Docker, Kubernetes, OpenShift Origin, and Fabric8, can help organizations integrate services and establish effective continuous integration and delivery (CI/CD) pipelines.

The document discusses the development of an ATM Simulation System using Java. It aims to build a user-friendly graphical interface to automate ATM functions like transactions and reporting. This would make the system faster and more accurate than the existing manual process. Java was chosen as the programming language since it is platform independent, simple, secure and robust. The document also provides an overview of Java features and history and describes what tools like the Java JDK and MySQL database would be needed to develop the system. It discusses the scope for future improvements like adding an online mode and reports.

PHP frameworks provide basic functionality and an architecture for building projects. They promote code reuse and speed up development by reducing overhead code needed for tasks like database access, authentication, and validation. While frameworks have learning curves and performance costs, they make code easier to maintain. Popular PHP frameworks include Yii, CodeIgniter, Symfony, Laravel, and CakePHP, with each having their own strengths for different project needs and team sizes. Frameworks help developers build clean, reusable code by enforcing separation of logic and presentation using patterns like MVC.

The document discusses datacenter computing using Apache Mesos. It begins by discussing concepts like "data democratization" and "cluster democratization", which refer to making data and computing resources available throughout an organization. It then discusses lessons from Google's approach to datacenter computing, and frameworks that can be integrated with Mesos like Hadoop, Spark, and Docker. Examples of companies using Mesos in production are provided, including Twitter, Airbnb, and eBay. Mesos provides a common substrate that makes heterogeneous computing resources available as a homogeneous set, improving scalability, elasticity, fault tolerance and resource utilization.

This document provides an overview of microservices for Java architects by Derek Ashmore. It begins by introducing Ashmore and his background. The document then discusses what microservices are, how they differ from traditional monolithic architectures, and considerations for designing microservices like service boundaries, handling failures, ensuring data integrity and performance. It also covers packaging and deployment options for microservices like Spring Boot and Docker. Finally, it addresses some common misconceptions about microservices and provides additional resources for further reading.

With the ascent of DevOps, microservices, containers, and cloud-based development platforms, the gap between state-of-the-art solutions and the technology that enterprises typically support has greatly increased. But some enterprises are now looking to bridge that gap by building microservices-based architectures on top of Java EE. In this webcast, Red Hat Developer Advocate Markus Eisele explores the possibilities for enterprises that want to move ahead with this architecture. However, the issue is complex: Java EE wasn't built with the distributed application approach in mind, but rather as one monolithic server runtime or cluster hosting many different applications. If you're part of an enterprise development team investigating the use of microservices with Java EE, this webcast will guide you to answers for getting started.

This document discusses integration in the age of DevOps. It describes how microservices help solve the problem of decoupling services and teams to move quickly at scale. Apache Camel is presented as a solution for integration that allows for reliable and distributed integration through mechanisms like messaging. Kubernetes and Docker are discussed as platforms that help develop and run microservices locally and at scale by providing automation, configuration, isolation and service discovery capabilities.

This document summarizes Nicolas De Loof's talk about patterns for developing applications in the cloud. The talk discusses scaling applications horizontally and vertically, keeping stateless designs, using standards, and designing for failure. It also emphasizes continuous integration, deployment, and delivery practices like managing infrastructure as code and enabling zero downtime deployments.

This document provides a high-level design proposal for Apache Drill from the OpenDremel team. It outlines four key design tenets: (1) supporting multi-tenant semantics internally without guest VMs, (2) being modular and customizable, (3) being hyper-elastic to exploit compute capacity, and (4) being efficient. It suggests an architecture with a single-tenant frontend and multi-tenant backend separated. It also provides details on the suggested designs for the frontend, CLI, REST gateway, and query compiler.

O'Reilly Media - Strata SC 2014 Apache Mesos is an open source cluster manager that provides efficient resource isolation for distributed frameworks—similar to Google’s “Borg” and “Omega” projects for warehouse scale computing. It is based on isolation features in the modern kernel: “cgroups” in Linux, “zones” in Solaris. Google’s “Omega” research paper shows that while 80% of the jobs on a given cluster may be batch (e.g., MapReduce), 55-60% of cluster resources go toward services. The batch jobs on a cluster are the easy part—services are much more complex to schedule efficiently. However by mixing workloads, the overall problem of scheduling resources can be greatly improved. Given the use of Mesos as the kernel for a “data center OS”, two additional open source components Chronos (like Unix “cron”) and Marathon (like Unix “init.d”) serve as the building blocks for creating distributed, fault-tolerant, highly-available apps at scale. This talk will examine case studies of Mesos uses in production at scale: ranging from Twitter (100% on prem) to Airbnb (100% cloud), plus MediaCrossing, Categorize, HubSpot, etc. How have these organizations leveraged Mesos to build better, more scalable and efficient distributed apps? Lessons from the Mesos developer community show that one can port an existing framework with a wrapper in approximately 100 line of code. Moreover, an important lesson from Spark is that based on “data center OS” building blocks one can rewrite a distributed system much like Hadoop to be 100x faster within a relatively small amount of source code. These case studies illustrate the obvious benefits over prior approaches based on virtualization: scalability, elasticity, fault-tolerance, high availability, improved utilization rates, etc. Less obvious outcomes also include: reduced time for engineers to ramp-up new services at scale; reduced latency between batch and services, enabling new high-ROI use cases; and enabling dev/test apps to run on a production cluster without disrupting operations.

Mathew Beane discusses strategies for optimizing and scaling Magento applications on clustered infrastructure. Some key points include: - Using Puppetmaster to build out clusters with standard webnodes and database configurations. - Magento supports huge stores and is very flexible and scalable. Redis is preferred over Memcache for caching. - Important to have application optimization, testing protocols and deployment pipelines in place before scaling. - Common components for scaling include load balancers, proxying web traffic, clustering Redis with Sentinel and Twemproxy, adding read servers and auto-scaling.

Cybersecurity is a major concern in today's connected digital world. Threats to organizations are constantly evolving and have the potential to compromise sensitive information, disrupt operations, and lead to significant financial losses. Traditional cybersecurity techniques often fall short against modern attackers. Therefore, advanced techniques for cyber security analysis and anomaly detection are essential for protecting digital assets. This blog explores these cutting-edge methods, providing a comprehensive overview of their application and importance.

Everything that I found interesting last month about the irresponsible use of machine intelligence

These fighter aircraft have uses outside of traditional combat situations. They are essential in defending India's territorial integrity, averting dangers, and delivering aid to those in need during natural calamities. Additionally, the IAF improves its interoperability and fortifies international military alliances by working together and conducting joint exercises with other air forces.

Invited Remote Lecture to SC21 The International Conference for High Performance Computing, Networking, Storage, and Analysis St. Louis, Missouri November 18, 2021

The DealBook is our annual overview of the Ukrainian tech investment industry. This edition comprehensively covers the full year 2023 and the first deals of 2024.