A Scalable Stack for Modular Web Applications

Jun 6, 20150 likes1,283 views

Slides of talk given at Spark Conference: Modularity reduces software complexity. In this session we’ll present an OSGi based technology stack that can be used for building scalable and modular web applications in Java with standards such as JAX-RS, dependency injection and websockets. We’ll also show you how HTML5 and JavaScript based frontends can be developed and deployment alongside the backend supporting its modularity.

A Scalable Stack for Modular
Web Applications
Gunnar Wagenknecht (@guw)

InThis Session
• LEARN what modern server applications need to
feature
• UNDERSTAND Eclipse Gyrex and selected
technologies of this stack
• EXPLORE a web application based on Eclipse
Gyrex

HighTrafﬁc
https://www.ﬂickr.com/photos/davidedamico/

Frontends
web, apps & devices
https://www.ﬂickr.com/photos/raffaespo/

Modular
development & deployment
https://www.ﬂickr.com/photos/russellstreet/

Simple
deployment & operation
https://www.ﬂickr.com/photos/jar0d/

Open
technologies & architectures
https://www.ﬂickr.com/photos/roborodent/

A lightweight application stack for building server
applications using EclipseRT technologies.

EclipseRT
„EclipseRT is the collection of OSGi-based runtimes
and frameworks built by the Eclipse open source
projects.“
RunTime

Equinox
• OSGi reference implementation
• Foundation of EclipseRT
• Component Oriented Development and Assembly

Jetty
• Asynchronous HTTP Server and Client
• Standards based Servlet Container
• Web Sockets server
• OSGi, JNDI, JMX, JASPI,AJP support
• Small foot print
• Excellent scalability
• Runs in
• Apache Hadoop and many, many more software
• Google AppEngine

Gyrex
• Clustering
• Web-based administration
• Multi-tenancy
• Operational enhancements

Gyrex Features
• lightweight application stack
• fast 100% OSGi runtime
• central cluster conﬁguration 
through Apache ZooKeeper
• cluster aware job scheduling
• automated deployment through p2
• support for cluster node roles, e.g.“job worker node” and “api node”

Gyrex Components
Equinox
Multi-tenant Runtime Cloud
Monitoring Admin
Logging Metrics
Debug/Trace
Web
SSH
Repositories 
(JDBC, JPA, NoSQL)
HTTP Applications 
(Jetty, OSGi HttpService)
Conﬁguration
Provisioning
Clustering & Coord.
Batch Processing

Sample Production Deployment
Load Balancer
Web
App
IoT Device
Native
App
iPad App
Mobile Apps
Web
Node
Web
Node
Web
Node
Web
Node
Web
Node
Web
Node
ZooKeeper Cluster
REST
API
REST
API
REST
API
REST
API
REST
API
Batch
Node
Batch
Node
Batch
Node
Batch
Node
RedisAnsible
KibanaLogstash
Elastic
Search
Jenkins

Example Application
https://github.com/eclipseguru/gyrex-timezones-example

Q & A
• Gyrex Newsgroup / Forum at 
http://www.eclipse.org/forums/
• Information hub at 
http://www.eclipse.org/gyrex/
• Session feedback / questions 
@guw

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VFP-Report-Copy-Data-Environment details. I am MCTS - (Microsoft Certified Tech. Specialist). I had started my journey with COBOL, dbaseIII+, Clipper, Foxpro - DOS/WIndows/Visual, VB6. My 130+ Articles on .NET : https://www.c-sharpcorner.com/members/manoj-kalla3 My YouTube Channel: https://www.youtube.com/@manojkalla4174/playlists Total 200+ Videos on Visual Foxpro. My Medium Article : https://medium.com/@manojkalla Ahmedabad Information Technology IT college Syllabus for BCA, MCA and online teaching for Asp.Net MVC, Asp.Net Core, Java, C Language, C++ Language, Entity Framework, Linq To SQL, Android. The Maharaja Sayajirao University (M.S. University), Dr. Babasaheb Ambedkar Open University (BAOU), Indus University (IU), Ahmedabad courses and G.L.S. Institute Of Computer Application (GLSICA), Gujarat University online courses BCA, MCA and BTech, MTech online. Mehsana Information Technology IT college Syllabus for BCA, MCA. Mehsana online teaching for Asp.Net MVC, Asp.Net Core, Java, C Language, C++ Language, Entity Framework, Linq To SQL, Android. Yashwantrao Chavan Maharashtra Open University (YCMOU) course online training institute. YCMOU Java Notes, YCMOU Android Training, YCMOU Java Training, YCMOU Linux Course, YCMOU syllabus online Training insitute, YCMOU C++ Notes, YCMOU C++ online training, YCMOU C++ online tutor. YCMOU BCA tutor , YCMOU BCA training, Bharati Vidyapeeth University (BVP) courses online training , Bharati Vidyapeeth University (BVP) courses online tutor, Bharati Vidyapeeth University (BVP) courses BCA online training , Bharati Vidyapeeth University (BVP) courses BTECH online tutor, Angular online tutor in malad mumbai, Angular online tutor in kandivali mumbai, Angular online tutor in bhayandar mumbai, Angular online tutor in vapi gujrat, Angular online tutor in surat gujrat, Angular online tutor in baroda gujrat, Angular online tutor in vadodara gujrat, Angular online tutor in indore MP, Angular online tutor in bhopal MP, Angular online tutor in nashik maharashtra, Angular online tutor in pune maharashtra, Angular online training institute in Bandra Mumbai, Angular online training institute in mehsana Gujrat, Angular online tutor in malad mumbai, Angular online tutor in kandivali mumbai, Angular online tutor in bhayandar mumbai, Angular online tutor in vapi gujrat, Angular online tutor in surat gujrat, Angular online tutor in baroda gujrat, Angular online tutor in vadodara gujrat, Angular online tutor in indore MP, Angular online tutor in bhopal MP, Angular online tutor in nashik maharashtra, Angular online tutor in pune maharashtra, Angular online training institute in Bandra Mumbai, Angular online training institute in mehsana Gujrat,

And overview of Nasdanika Models and their applicationsPavel Vlasov

This presentation provides an overview of Nasdanika metamodels and their applications - reference documentation, analysis, code generation, use with GenAI operating on complex structures instead of text - humans don't think in text, they think in images (diagrams) - objects and their relationships. Translating human thoughts to text is an "expensive" and error prone process. And this is where diagramming, modeling, and generation of textual description from a model can help humans and GenAI to communicate better.

List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfol...Philip Schwarz

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AI-ASSISTED METAMORPHIC TESTING FOR DOMAIN-SPECIFIC MODELLING AND SIMULATION (plenary talk at ANNSIM'2025) Testing is essential to improve the correctness of software systems. Metamorphic testing (MT) is an approach especially suited when the system under test lacks oracles, or they are expensive to compute. However, building an MT environment for a particular domain (e.g., cloud simulation, automated driving simulation, production system simulation, etc) requires substantial effort. To alleviate this problem, we propose a model-driven engineering approach to automate the construction of MT environments, which is especially useful to test domain-specific modelling and simulation systems. Starting from a meta-model capturing the domain concepts, and a description of the domain execution environment, our approach produces an MT environment featuring comprehensive support for the MT process. This includes the definition of domain-specific metamorphic relations, their evaluation, detailed reporting of the testing results, and the automated search-based generation of follow-up test cases. In this talk, I presented the approach, along with ongoing work and perspectives for integrating intelligence assistance based on large language models in the MT process. The work is a joint collaboration with Pablo Gómez-Abajo, Pablo C. Cañizares and Esther Guerra from the miso research group and Alberto Núñez from UCM.

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ICDL FULL STANDARD 2025 Luisetto mauro - Academia domani- 55 HOURS LONG pdfM. Luisetto Pharm.D.Spec. Pharmacology

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Delivering More with Less: AI Driven Resource Management with OnePlan OnePlan Solutions

Delivering more with less is an age-old problem. Smaller budgets, leaner teams, and greater uncertainty make the path to success unclear. Combat these issues with confidence by leveraging the best practices that help PMOs balance workloads, predict bottlenecks, and ensure resources are deployed effectively, using OnePlan’s AI forecasting capabilities, especially when organizations must deliver more with fewer people.

zOS CommServer support for the Network Express feature on z17zOSCommserver

The IBM z17 has undergone a transformation with an entirely new System I/O hardware and architecture model for both storage and networking. The z17 offers I/O capability that is integrated directly within the Z processor complex. The new system design moves I/O operations closer to the system processor and memory. This new design approach transforms I/O operations allowing Z workloads to grow and scale to meet the growing needs of current and future IBM Hybrid Cloud Enterprise workloads. This presentation will focus on the networking I/O transformation by introducing you to the new IBM z17 Network Express feature. The Network Express feature introduces new system architecture called Enhanced QDIO (EQDIO). EQDIO allows the updated z/OS Communications Server software to interact with the Network Express hardware using new optimized I/O operations. The new design and optimizations are required to meet the demand of the continuously growing I/O rates. Network Express and EQDIO build the foundation for the introduction of advanced Ethernet and networking capabilities for the future of IBM Z Hybrid Cloud Enterprise users. The Network Express feature also combines the functionality of both the OSA-Express and RoCE Express features into a single feature or adapter. A single Network Express port supports both IP protocols and RDMA protocols. This allows each Network Express port to function as both a standard NIC for Ethernet and as an RDMA capable NIC (RNIC) for RoCE protocols. Converging both protocols to a single adapter reduces Z customers’ cost for physical networking resources. With this change, IBM Z customers can now exploit Shared Memory Communications (SMC) leveraging RDMA (SMC-R) technology without incurring additional hardware costs. In this session, the speakers will focus on how z/OS Communications Server has been updated to support the Network Express feature. An introduction to the new Enhanced QDIO Ethernet (EQENET) interface statement used to configure the new OSA is provided. EQDIO provides a variety of simplifications, such as no longer requiring VTAM user defined TRLEs, uses smarter defaults and removes outdated parameters. The speakers will also cover migration considerations for Network Express. In addition, the operational aspects of managing and monitoring the new OSA and RoCE interfaces will be covered. The speakers will also take you through the enhancements made to optimize both inbound and outbound network traffic. Come join us, step aboard and learn how z/OS Communications Server is bringing you the future in network communications with the IBM z17 Network Express feature.

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Upscale your Operational Excellence with systematic & streamlined. Key Features of TeroTAM ➢ Asset Management ➢ Preventive Maintenance ➢ Complaint Management Solution ➢ Task & Escalation Management ➢ Location Management ➢ Stroe Condition Assessment ➢ Facility Condition Assessment ➢ Workflow Management ➢ Vendor & Service Management ➢ Staff Management and Tracking ➢ Analytics/Reports

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A Scalable Stack for Modular Web Applications

1. A Scalable Stack for Modular Web Applications Gunnar Wagenknecht (@guw)

2. InThis Session • LEARN what modern server applications need to feature • UNDERSTAND Eclipse Gyrex and selected technologies of this stack • EXPLORE a web application based on Eclipse Gyrex

3. Modern Server Application

4. HighTrafﬁc https://www.ﬂickr.com/photos/davidedamico/

5. Frontends web, apps & devices https://www.ﬂickr.com/photos/raffaespo/

6. Modular development & deployment https://www.ﬂickr.com/photos/russellstreet/

7. Simple deployment & operation https://www.ﬂickr.com/photos/jar0d/

8. Open technologies & architectures https://www.ﬂickr.com/photos/roborodent/

9. Eclipse Gyrex

10. A lightweight application stack for building server applications using EclipseRT technologies.

11. EclipseRT „EclipseRT is the collection of OSGi-based runtimes and frameworks built by the Eclipse open source projects.“ RunTime

12. Equinox • OSGi reference implementation • Foundation of EclipseRT • Component Oriented Development and Assembly

13. Jetty • Asynchronous HTTP Server and Client • Standards based Servlet Container • Web Sockets server • OSGi, JNDI, JMX, JASPI,AJP support • Small foot print • Excellent scalability • Runs in • Apache Hadoop and many, many more software • Google AppEngine

14. Gyrex • Clustering • Web-based administration • Multi-tenancy • Operational enhancements

15. Gyrex Features • lightweight application stack • fast 100% OSGi runtime • central cluster conﬁguration  through Apache ZooKeeper • cluster aware job scheduling • automated deployment through p2 • support for cluster node roles, e.g.“job worker node” and “api node”

16. Gyrex Components Equinox Multi-tenant Runtime Cloud Monitoring Admin Logging Metrics Debug/Trace Web SSH Repositories  (JDBC, JPA, NoSQL) HTTP Applications  (Jetty, OSGi HttpService) Conﬁguration Provisioning Clustering & Coord. Batch Processing

17. Sample Production Deployment Load Balancer Web App IoT Device Native App iPad App Mobile Apps Web Node Web Node Web Node Web Node Web Node Web Node ZooKeeper Cluster REST API REST API REST API REST API REST API Batch Node Batch Node Batch Node Batch Node RedisAnsible KibanaLogstash Elastic Search Jenkins

18. Example Application https://github.com/eclipseguru/gyrex-timezones-example

19. Q & A • Gyrex Newsgroup / Forum at  http://www.eclipse.org/forums/ • Information hub at  http://www.eclipse.org/gyrex/ • Session feedback / questions  @guw

20. –Gunnar Wagenknecht „Thank you!“

A Scalable Stack for Modular Web Applications

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