The document summarizes the architecture of eBay over time as it evolved to handle exponential growth. It describes the key challenges of maintaining site stability, performance, and scalability while rapidly delivering new features to over 212 million users. The architecture progressed from a single-server setup in 1995 to a horizontally scalable multi-tiered platform in 2002, implementing techniques like database splitting, load balancing, and asynchronous integration to enable massive scaling.
QCon San Francisco 2011: Agility in eBayDeepak Nadig
eBay manages over 97 million active users and processes over 80 petabytes of data daily. The company aims to rapidly adapt to changes by defining agility as the ability to efficiently sense changes and respond effectively. eBay has increased its agility by partitioning its architecture into tiers, domains, and services to eliminate coupling; decentralizing accountability; and enabling rapid iteration and easy composition of services through processes, organizational changes, and technology improvements. Examples include adopting Scrum, forming dedicated teams, and leveraging cloud technologies.
This document provides an agenda for an August 21, 2012 webinar on early childhood comprehensive systems (ECCS) and the Maternal, Infant, and Early Childhood Home Visiting program (MIECHV). The webinar goals are to familiarize participants with the complementary roles of ECCS and MIECHV grants, discuss how their implementation plans can strengthen outcomes, discuss conditions that support coordination, and describe strategies states have used to integrate home visiting into ECCS. The webinar will be presented by representatives from Montana, Maine, and South Carolina who will discuss their experiences coordinating ECCS and MIECHV.
Este documento trata sobre las intervenciones psicológicas en crisis y emergencias. Explica conceptos clave como crisis, tipos de crisis, teoría de las crisis de Caplan, y fases en las crisis. También define emergencia y desastre, e incluye antecedentes históricos importantes en el campo como los estudios de Lindemann sobre duelo y el establecimiento de centros de prevención de suicidios en los años 60.
This document contains a list of the top 700 websites ranked by global traffic. The list includes major sites such as google.com, youtube.com, facebook.com, baidu.com, wikipedia.org, yahoo.com, amazon.com, and others across various categories including search engines, social networks, video sites, e-commerce sites, blogs, and more. The sites are presented in descending order based on estimated number of daily visitors.
This document contains information about a student named Jundel L. Deliman who is taking the Bachelor of Secondary Education program. It details his performance in Field Study 3 Episode 7, which focuses on evaluating electronic resources for instructional use. He is rated on various tasks including observation, analysis, reflection, portfolio, and submission. The document provides guidelines for him to observe a mathematics class on sequences and then analyze appropriate electronic resources to support teaching that topic. It includes his analysis matrix and reflections. His portfolio section displays instructional materials he found online related to formulating and solving equations and problems.
Video: https://www.youtube.com/watch?v=b6yLwvNSDck
Here's the showdown you've been waiting for: Node.js vs Play Framework. Both are popular open source web frameworks that are built for developer productivity, asynchronous I/O, and the real time web. But which one is easier to learn, test, deploy, debug, and scale? Should you pick Javascript or Scala? The Google v8 engine or the JVM? NPM or Ivy? Grunt or SBT? Two frameworks enter, one framework leaves.
This is the English version of the presentation. For the version with Japanese subtitles, see http://www.slideshare.net/brikis98/nodejs-vs-play-framework-with-japanese-subtitles
The document discusses the French pronouns "y" and "en" and their various meanings. It explains that "y" can replace "à + something" and refers to things, places or ideas but not people. Similarly, "en" can replace "de + something" and also refers to things but not people. Some examples are provided to illustrate how "y" and "en" are used and what they refer to in different contexts. The document emphasizes that these pronouns can take on various meanings depending on the context to make sense in the sentence.
The document discusses the architecture of eBay's platform. It describes how eBay has scaled to support over 212 million registered users and handle over 1 billion page views per day. Some key points discussed are:
- eBay's architecture has evolved over time through several major versions to support exponential growth and handle over 300 new features per quarter.
- The data tier is horizontally scaled across multiple databases segmented by functional areas and further split. Application and search components are also horizontally scaled.
- Asynchronous integration, stateless applications, and caching are used to improve scalability. Strict separation of tiers and partitioning of code supports parallel development.
- Automated processes are used for code deployment, monitoring, and rollbacks to
QCon San Francisco 2011: Agility in eBayDeepak Nadig
eBay manages over 97 million active users and processes over 80 petabytes of data daily. The company aims to rapidly adapt to changes by defining agility as the ability to efficiently sense changes and respond effectively. eBay has increased its agility by partitioning its architecture into tiers, domains, and services to eliminate coupling; decentralizing accountability; and enabling rapid iteration and easy composition of services through processes, organizational changes, and technology improvements. Examples include adopting Scrum, forming dedicated teams, and leveraging cloud technologies.
This document provides an agenda for an August 21, 2012 webinar on early childhood comprehensive systems (ECCS) and the Maternal, Infant, and Early Childhood Home Visiting program (MIECHV). The webinar goals are to familiarize participants with the complementary roles of ECCS and MIECHV grants, discuss how their implementation plans can strengthen outcomes, discuss conditions that support coordination, and describe strategies states have used to integrate home visiting into ECCS. The webinar will be presented by representatives from Montana, Maine, and South Carolina who will discuss their experiences coordinating ECCS and MIECHV.
Este documento trata sobre las intervenciones psicológicas en crisis y emergencias. Explica conceptos clave como crisis, tipos de crisis, teoría de las crisis de Caplan, y fases en las crisis. También define emergencia y desastre, e incluye antecedentes históricos importantes en el campo como los estudios de Lindemann sobre duelo y el establecimiento de centros de prevención de suicidios en los años 60.
This document contains a list of the top 700 websites ranked by global traffic. The list includes major sites such as google.com, youtube.com, facebook.com, baidu.com, wikipedia.org, yahoo.com, amazon.com, and others across various categories including search engines, social networks, video sites, e-commerce sites, blogs, and more. The sites are presented in descending order based on estimated number of daily visitors.
This document contains information about a student named Jundel L. Deliman who is taking the Bachelor of Secondary Education program. It details his performance in Field Study 3 Episode 7, which focuses on evaluating electronic resources for instructional use. He is rated on various tasks including observation, analysis, reflection, portfolio, and submission. The document provides guidelines for him to observe a mathematics class on sequences and then analyze appropriate electronic resources to support teaching that topic. It includes his analysis matrix and reflections. His portfolio section displays instructional materials he found online related to formulating and solving equations and problems.
Video: https://www.youtube.com/watch?v=b6yLwvNSDck
Here's the showdown you've been waiting for: Node.js vs Play Framework. Both are popular open source web frameworks that are built for developer productivity, asynchronous I/O, and the real time web. But which one is easier to learn, test, deploy, debug, and scale? Should you pick Javascript or Scala? The Google v8 engine or the JVM? NPM or Ivy? Grunt or SBT? Two frameworks enter, one framework leaves.
This is the English version of the presentation. For the version with Japanese subtitles, see http://www.slideshare.net/brikis98/nodejs-vs-play-framework-with-japanese-subtitles
The document discusses the French pronouns "y" and "en" and their various meanings. It explains that "y" can replace "à + something" and refers to things, places or ideas but not people. Similarly, "en" can replace "de + something" and also refers to things but not people. Some examples are provided to illustrate how "y" and "en" are used and what they refer to in different contexts. The document emphasizes that these pronouns can take on various meanings depending on the context to make sense in the sentence.
The document discusses the architecture of eBay's platform. It describes how eBay has scaled to support over 212 million registered users and handle over 1 billion page views per day. Some key points discussed are:
- eBay's architecture has evolved over time through several major versions to support exponential growth and handle over 300 new features per quarter.
- The data tier is horizontally scaled across multiple databases segmented by functional areas and further split. Application and search components are also horizontally scaled.
- Asynchronous integration, stateless applications, and caching are used to improve scalability. Strict separation of tiers and partitioning of code supports parallel development.
- Automated processes are used for code deployment, monitoring, and rollbacks to
The document discusses eBay's architecture and strategies for maintaining scalability and agility. It describes eBay's large scale, including billions of daily interactions. It also outlines eBay's transition to more automated, cloud-based infrastructure and a next generation service-oriented platform. This is intended to improve development productivity while allowing faster innovation and time-to-market through increased infrastructure and platform services.
This document discusses introducing continuous delivery practices at an organization. It provides four stories from different companies about their continuous delivery journeys. The first story describes challenges at Nokia with complicated dependencies and integration problems that were addressed by implementing delivery pipelines and consumer driven contracts. The second story focuses on delivering value and achieving a higher release frequency, shorter cycle times, and higher release success rates at another unnamed company. The third story discusses the architecture at eBay and improvements achieved by moving to more modular code and weekly releases. The final story cautions against skipping testing phases when moving to continuous delivery. Common themes that helped organizations were taking baby steps, establishing cross-functional teams, test automation, and focusing on delivering value.
This document discusses eBay's architectural principles for scaling its large ecommerce site. It outlines four main strategies: (1) Partition everything by data, load, or usage to split problems into manageable chunks and allow independent scalability. (2) Use asynchronous processing wherever possible to improve scalability, availability, and latency. (3) Favor automated and adaptive systems over manual processes to reduce costs and improve functionality. (4) Design all systems to be failure-tolerant by assuming failure, rapidly detecting and recovering from failures, and degrading gracefully when necessary. Specific patterns for implementing each strategy across databases, applications, search, and other areas are also discussed.
This document summarizes an eBay presentation on next generation data centers and cloud computing technologies. It provides examples of how eBay has leveraged these technologies, including virtualizing and scaling their database to handle extreme growth. The presentation discusses how next generation data centers are more than just technologies, and focus on running business processes driven by service level agreements.
This document makes the case for upgrading to the latest versions of GeneXus. It outlines the key benefits of upgrading such as improved developer experience, better performance, additional functionality like web reports and cloud deployment capabilities, and enhanced security features. While an upgrade requires investment, it argues that doing so allows applications to take advantage of new technologies and keep pace with changing needs, ultimately creating better applications. It invites readers to make the "right move" and upgrade to the GeneXus Evolutions.
In 3 sentences:
1) Moving SAP applications to the cloud can be done in 3 easy steps by virtualizing the application using application virtualization which packages it in a virtual application appliance (VAA) that is portable.
2) VAAs are fully portable, can be provisioned instantly across environments, and reduce software costs through consolidation and automation while increasing agility.
3) Using VAAs to deploy SAP applications provides benefits like faster provisioning, reduced software costs, increased utilization, and accelerated application lifecycles.
Building a Website to Scale to 100 Million Page Views Per Day and Beyond Trieu Nguyen
The document discusses the architecture of a website designed to scale to 200 million page views per day. It describes the requirements of supporting high traffic, legacy data, and increased speed. The architecture includes load balancing, caching, logging, PHP, MySQL, Redis, and other technologies. While the re-write took longer than planned due to decisions on technologies and staffing issues, the new site launched without downtime and was faster, making it an overall success story.
ContACT Internet Solutions offers various website hosting and domain registration services, including entry-level, business, and enterprise hosting plans with differing storage, bandwidth, and feature allowances. They also provide website development packages that include templates, modules, and tools for booking, calendars, photo galleries, and more. Custom website development, maintenance, and application building services are also available at hourly rates.
This document discusses Amazon Web Services and the benefits of running workloads in the AWS cloud. It describes Amazon's three main business lines of retail, seller services, and IT infrastructure. It then outlines key benefits of the AWS cloud like lower costs, increased agility, and removing constraints. It discusses how the AWS cloud provides scalability, reliability, security and acts as a foundation for 21st century architectures. It emphasizes choice and elasticity as fundamental properties of the cloud.
Scaling Continuous Integration Practices to Teams with Parallel DevelopmentIBM UrbanCode Products
Slides from an Urbancode and Accurev joint webinar: http://www.accurev.com/webinar/20120119-Scaling-CI-Parallel-Development
Continuous integration is simple with a single development team. But when software projects grow to multiple teams and dependencies, continuous integration loses effectiveness due to parallel projects, varying release schedules, and differing cadences between teams. As a result, many teams unknowingly lose the benefits of continuous integration, and therefore suffer from a lack of feedback and poor quality.
In this webinar, UrbanCode’s Eric Minick and AccuRev’s Chris Lucca will explain how to:
- Scale continuous integration builds across multiple development teams working on parallel projects
- Share only code that has passed continuous integration from other teams to avoid broken builds and confusion
- Automate the configuration of your test environment to handle fluid projects done in parallel
Composite Applications with SOA, BPEL and Java EEDmitri Shiryaev
The document discusses building composite applications using service-oriented architecture (SOA), BPEL, and Java EE. It introduces composite applications and how SOA allows applications to be composed of reusable parts that can be flexibly assembled. The benefits of SOA include flexibility, faster development, leveraging existing assets, and enabling new business opportunities. Key SOA concepts are introduced like services, service implementations, and service-oriented design.
This document provides an overview of JBoss and its mission to create the best Java application server and establish it as the de facto standard. It discusses JBoss's success in downloads and adoption, as well as its strategy of executing the "Professional Open Source" model through services like training, documentation, consulting, and production support.
Scalable Lifecycle Management via PerforcePerforce
How do you manage complex, dynamic production environments where there's a need not only for speed and accuracy of deployment but also a requirement to have deep information about the state of each environment and a guarantee of application integrity? Learn how NYSE Euronext addresses these challenges with Perforce.
The document discusses the evolution of logistics and supply chain management from isolated applications to more integrated systems. It describes how planning and execution used to be separate but are now joined up through composite applications. Tomorrow, planning will be more distributed, dynamic and optimized in real-time through increased automation. Two big ongoing challenges are data quality issues and supporting planners amid rapidly changing business environments. The future involves more distributed, adaptive operations through dynamic business webs that can quickly position inventory and leverage different transportation options.
Scaling up to 30M users - The Wix StoryAviran Mordo
Wix has scaled to serve 30 million users and over 1 million new websites per month. As the company grew, its initial architecture based on Tomcat and MySQL struggled to scale. Wix transitioned to a distributed system separating the editor and public segments for higher availability. It also developed Prospero, a media storage system using consistent hashing to shard files across servers. Caching and a CDN help further improve performance and scalability.
This document provides a summary of announcements and developments from Quantel at IBC 2010. Key points include:
- Cinnafilm Dark Energy noise reduction, grain addition, and sharpening tools have been integrated into Quantel's eQ, iQ, and Pablo systems.
- A major update for Quantel's integrated MAM, called Mission 2, includes improved file delivery, tighter archive integration, and expanded metadata editing and language support.
- Quantel Pablo was awarded a Lumiere Award for its contributions to advancing stereo 3D technology. New stereo 3D tools have been added to Pablo and iQ based on user feedback.
- Quantel is demonstrating stereo 3D workflows for sports production
Wordnik's architecture is built around a large English word graph database and uses microservices and ephemeral Amazon EC2 storage. Key aspects include:
1) The system is built as independent microservices that communicate via REST APIs documented using Swagger specifications.
2) Databases for each microservice are kept small by design to facilitate operations like backups, replication, and index rebuilding.
3) Services are deployed across multiple Availability Zones and regions on ephemeral Amazon EC2 storage for high availability despite individual host failures.
Lessons Learned From Internal CommunitiesPeter Kim
This document summarizes a discussion on using internal social networking at large companies. Representatives from IBM, EMC, Deloitte, and Dachis Corporation discussed their experiences launching internal social platforms, how they are used, and key metrics. They covered challenges around adoption, moderation, and measuring success.
The Sanger Institute generates large amounts of genomic data and requires significant compute resources to analyze it. It has experimented with running its analysis pipelines in the cloud to expand capacity and markets. However, moving large datasets into the cloud and ensuring fast access to the data within cloud compute resources has proved challenging. While individual components like web services have worked well, the high performance computing workloads that rely on large-scale data access and processing have not scaled effectively due to data transfer bottlenecks and lack of high-performance filesystems in the cloud.
Wix has scaled from serving 30 million users to over 1 billion user media files daily by evolving their architecture and processes over time. Some of the key changes included splitting the monolithic application into separate editor and public segments, introducing caching and media storage solutions, adopting continuous delivery practices, and moving to managed hosting and cloud infrastructure to allow for scalability. People and culture changes like emphasizing empowered developers and frequent releases were also important to allow for increased velocity.
Gestion restaurantes. noticias. la comida a domicilio en la era digitalCiro Electo
Este documento describe el creciente negocio de la comida a domicilio en España a través de plataformas online. Detalla dos modelos: empresas que se encargan de la logística de entrega y agregadores de oferta de restaurantes con servicio propio. También analiza las ventajas para los restaurantes de asociarse a estas plataformas y menciona dos empresas líderes en este mercado: Sindelantal y Just-eat.
El documento habla sobre los cheques de restaurante en España. Más de 400,000 empleados reciben vales de comida diarios equivalentes a 380 millones de euros anualmente. Aunque tres grandes empresas dominan el mercado, tarjetas magnéticas están ganando popularidad. Una empresa llamada Grupo Copel ha tenido éxito con tarjetas llamadas Buen Menú, creciendo de 37,000 a 58,000 tarjetas en circulación.
The document discusses eBay's architecture and strategies for maintaining scalability and agility. It describes eBay's large scale, including billions of daily interactions. It also outlines eBay's transition to more automated, cloud-based infrastructure and a next generation service-oriented platform. This is intended to improve development productivity while allowing faster innovation and time-to-market through increased infrastructure and platform services.
This document discusses introducing continuous delivery practices at an organization. It provides four stories from different companies about their continuous delivery journeys. The first story describes challenges at Nokia with complicated dependencies and integration problems that were addressed by implementing delivery pipelines and consumer driven contracts. The second story focuses on delivering value and achieving a higher release frequency, shorter cycle times, and higher release success rates at another unnamed company. The third story discusses the architecture at eBay and improvements achieved by moving to more modular code and weekly releases. The final story cautions against skipping testing phases when moving to continuous delivery. Common themes that helped organizations were taking baby steps, establishing cross-functional teams, test automation, and focusing on delivering value.
This document discusses eBay's architectural principles for scaling its large ecommerce site. It outlines four main strategies: (1) Partition everything by data, load, or usage to split problems into manageable chunks and allow independent scalability. (2) Use asynchronous processing wherever possible to improve scalability, availability, and latency. (3) Favor automated and adaptive systems over manual processes to reduce costs and improve functionality. (4) Design all systems to be failure-tolerant by assuming failure, rapidly detecting and recovering from failures, and degrading gracefully when necessary. Specific patterns for implementing each strategy across databases, applications, search, and other areas are also discussed.
This document summarizes an eBay presentation on next generation data centers and cloud computing technologies. It provides examples of how eBay has leveraged these technologies, including virtualizing and scaling their database to handle extreme growth. The presentation discusses how next generation data centers are more than just technologies, and focus on running business processes driven by service level agreements.
This document makes the case for upgrading to the latest versions of GeneXus. It outlines the key benefits of upgrading such as improved developer experience, better performance, additional functionality like web reports and cloud deployment capabilities, and enhanced security features. While an upgrade requires investment, it argues that doing so allows applications to take advantage of new technologies and keep pace with changing needs, ultimately creating better applications. It invites readers to make the "right move" and upgrade to the GeneXus Evolutions.
In 3 sentences:
1) Moving SAP applications to the cloud can be done in 3 easy steps by virtualizing the application using application virtualization which packages it in a virtual application appliance (VAA) that is portable.
2) VAAs are fully portable, can be provisioned instantly across environments, and reduce software costs through consolidation and automation while increasing agility.
3) Using VAAs to deploy SAP applications provides benefits like faster provisioning, reduced software costs, increased utilization, and accelerated application lifecycles.
Building a Website to Scale to 100 Million Page Views Per Day and Beyond Trieu Nguyen
The document discusses the architecture of a website designed to scale to 200 million page views per day. It describes the requirements of supporting high traffic, legacy data, and increased speed. The architecture includes load balancing, caching, logging, PHP, MySQL, Redis, and other technologies. While the re-write took longer than planned due to decisions on technologies and staffing issues, the new site launched without downtime and was faster, making it an overall success story.
ContACT Internet Solutions offers various website hosting and domain registration services, including entry-level, business, and enterprise hosting plans with differing storage, bandwidth, and feature allowances. They also provide website development packages that include templates, modules, and tools for booking, calendars, photo galleries, and more. Custom website development, maintenance, and application building services are also available at hourly rates.
This document discusses Amazon Web Services and the benefits of running workloads in the AWS cloud. It describes Amazon's three main business lines of retail, seller services, and IT infrastructure. It then outlines key benefits of the AWS cloud like lower costs, increased agility, and removing constraints. It discusses how the AWS cloud provides scalability, reliability, security and acts as a foundation for 21st century architectures. It emphasizes choice and elasticity as fundamental properties of the cloud.
Scaling Continuous Integration Practices to Teams with Parallel DevelopmentIBM UrbanCode Products
Slides from an Urbancode and Accurev joint webinar: http://www.accurev.com/webinar/20120119-Scaling-CI-Parallel-Development
Continuous integration is simple with a single development team. But when software projects grow to multiple teams and dependencies, continuous integration loses effectiveness due to parallel projects, varying release schedules, and differing cadences between teams. As a result, many teams unknowingly lose the benefits of continuous integration, and therefore suffer from a lack of feedback and poor quality.
In this webinar, UrbanCode’s Eric Minick and AccuRev’s Chris Lucca will explain how to:
- Scale continuous integration builds across multiple development teams working on parallel projects
- Share only code that has passed continuous integration from other teams to avoid broken builds and confusion
- Automate the configuration of your test environment to handle fluid projects done in parallel
Composite Applications with SOA, BPEL and Java EEDmitri Shiryaev
The document discusses building composite applications using service-oriented architecture (SOA), BPEL, and Java EE. It introduces composite applications and how SOA allows applications to be composed of reusable parts that can be flexibly assembled. The benefits of SOA include flexibility, faster development, leveraging existing assets, and enabling new business opportunities. Key SOA concepts are introduced like services, service implementations, and service-oriented design.
This document provides an overview of JBoss and its mission to create the best Java application server and establish it as the de facto standard. It discusses JBoss's success in downloads and adoption, as well as its strategy of executing the "Professional Open Source" model through services like training, documentation, consulting, and production support.
Scalable Lifecycle Management via PerforcePerforce
How do you manage complex, dynamic production environments where there's a need not only for speed and accuracy of deployment but also a requirement to have deep information about the state of each environment and a guarantee of application integrity? Learn how NYSE Euronext addresses these challenges with Perforce.
The document discusses the evolution of logistics and supply chain management from isolated applications to more integrated systems. It describes how planning and execution used to be separate but are now joined up through composite applications. Tomorrow, planning will be more distributed, dynamic and optimized in real-time through increased automation. Two big ongoing challenges are data quality issues and supporting planners amid rapidly changing business environments. The future involves more distributed, adaptive operations through dynamic business webs that can quickly position inventory and leverage different transportation options.
Scaling up to 30M users - The Wix StoryAviran Mordo
Wix has scaled to serve 30 million users and over 1 million new websites per month. As the company grew, its initial architecture based on Tomcat and MySQL struggled to scale. Wix transitioned to a distributed system separating the editor and public segments for higher availability. It also developed Prospero, a media storage system using consistent hashing to shard files across servers. Caching and a CDN help further improve performance and scalability.
This document provides a summary of announcements and developments from Quantel at IBC 2010. Key points include:
- Cinnafilm Dark Energy noise reduction, grain addition, and sharpening tools have been integrated into Quantel's eQ, iQ, and Pablo systems.
- A major update for Quantel's integrated MAM, called Mission 2, includes improved file delivery, tighter archive integration, and expanded metadata editing and language support.
- Quantel Pablo was awarded a Lumiere Award for its contributions to advancing stereo 3D technology. New stereo 3D tools have been added to Pablo and iQ based on user feedback.
- Quantel is demonstrating stereo 3D workflows for sports production
Wordnik's architecture is built around a large English word graph database and uses microservices and ephemeral Amazon EC2 storage. Key aspects include:
1) The system is built as independent microservices that communicate via REST APIs documented using Swagger specifications.
2) Databases for each microservice are kept small by design to facilitate operations like backups, replication, and index rebuilding.
3) Services are deployed across multiple Availability Zones and regions on ephemeral Amazon EC2 storage for high availability despite individual host failures.
Lessons Learned From Internal CommunitiesPeter Kim
This document summarizes a discussion on using internal social networking at large companies. Representatives from IBM, EMC, Deloitte, and Dachis Corporation discussed their experiences launching internal social platforms, how they are used, and key metrics. They covered challenges around adoption, moderation, and measuring success.
The Sanger Institute generates large amounts of genomic data and requires significant compute resources to analyze it. It has experimented with running its analysis pipelines in the cloud to expand capacity and markets. However, moving large datasets into the cloud and ensuring fast access to the data within cloud compute resources has proved challenging. While individual components like web services have worked well, the high performance computing workloads that rely on large-scale data access and processing have not scaled effectively due to data transfer bottlenecks and lack of high-performance filesystems in the cloud.
Wix has scaled from serving 30 million users to over 1 billion user media files daily by evolving their architecture and processes over time. Some of the key changes included splitting the monolithic application into separate editor and public segments, introducing caching and media storage solutions, adopting continuous delivery practices, and moving to managed hosting and cloud infrastructure to allow for scalability. People and culture changes like emphasizing empowered developers and frequent releases were also important to allow for increased velocity.
Gestion restaurantes. noticias. la comida a domicilio en la era digitalCiro Electo
Este documento describe el creciente negocio de la comida a domicilio en España a través de plataformas online. Detalla dos modelos: empresas que se encargan de la logística de entrega y agregadores de oferta de restaurantes con servicio propio. También analiza las ventajas para los restaurantes de asociarse a estas plataformas y menciona dos empresas líderes en este mercado: Sindelantal y Just-eat.
El documento habla sobre los cheques de restaurante en España. Más de 400,000 empleados reciben vales de comida diarios equivalentes a 380 millones de euros anualmente. Aunque tres grandes empresas dominan el mercado, tarjetas magnéticas están ganando popularidad. Una empresa llamada Grupo Copel ha tenido éxito con tarjetas llamadas Buen Menú, creciendo de 37,000 a 58,000 tarjetas en circulación.
El documento presenta el menú de Alacarta, un servicio de comida a domicilio en Madrid. Ofrece platos de diferentes tipos de cocina como española, italiana, japonesa y más de varios restaurantes asociados. Explica los detalles del servicio como el costo de entrega, horarios y cómo realizar pedidos por teléfono o en línea.
El documento habla brevemente sobre un restaurante con una terraza que sirve judías negras, arroz blanco y huevos escalfados. También menciona un Audi cabrio azul y un Audi A4 automático.
El documento presenta dos números: 6.000 € y 325.000 €. Parece mostrar una cantidad menor y una cantidad mayor, posiblemente un rango de precios o valores.
El documento lista varios vehículos 4x4 de entre 9.000€ y 27.000€. Se incluye el precio, datos de contacto del vendedor, precio, cuotas de financiación a 7 años, características y equipamiento. Todos los vehículos tienen una velocidad máxima de 240km/h, un consumo de 5.5 litros y una garantía de 3 años o 100.000km.
El documento lista especificaciones y precios de varios coches nuevos, incluyendo modelos como Río, Terios, Touareg y CR-V, con información sobre cilindrada, caballos de fuerza, tipo de combustible, precio, cuota mensual a 7 años, velocidad máxima, aceleración, consumo y garantía. Los coches se ofrecen a través de concesionarios como Grupo Flick, Audi Canarias y Kia Motors.
El documento contiene especificaciones técnicas repetidas de un automóvil, incluyendo su precio, financiamiento disponible, velocidad máxima, aceleración, consumo de combustible, garantía, equipamiento de seguridad y conveniencia.
El documento contiene especificaciones técnicas repetidas de un automóvil, incluyendo su precio, financiamiento disponible, equipamiento, velocidad máxima, aceleración, consumo de combustible, garantía, características de seguridad y detalles adicionales.
The document discusses the architecture of eBay and how it has evolved over time to handle massive scale. It describes how eBay manages over 212 million registered users, over 1 billion photos, and averages over 1 billion page views per day. It summarizes some of the key architectural lessons eBay has learned, such as scaling out instead of up, preferring asynchronous integration, and designing for failure.
Com Score Media Metrix Ranks Top 50 U.S. Web Properties For September 2009Ciro Electo
1) Television sites saw large increases in visitors in September as the new fall TV season began, with Yahoo! TV leading with a 63% rise in visitors.
2) Education and computer software sites also grew as students returned to school, with Pearson Education growing 40% and Intuit rising 18%.
3) Sports sites reached record levels with the baseball playoffs and start of football, with Yahoo! Sports growing 32% and ESPN up 21%.
The Panasonic Lumix DMC-GH1 is a digital interchangeable lens camera announced in 2009. It features a 12.1 megapixel sensor, full HD video recording, an electronic viewfinder, and compatibility with Micro Four Thirds lenses. It is capable of recording video in AVCHD or Motion JPEG formats and features advanced autofocus and exposure controls.
Un estudio encontró que las funciones en línea que mejoran la experiencia de compra incluyen valoraciones y comentarios de otros clientes (84%), capacidad de zoom para ver detalles del producto (74%) e imágenes desde diferentes ángulos (65%), así como comparar productos (61%). Estas funciones ayudan a los clientes a tomar mejores decisiones de compra y crean una experiencia agradable que conduce a la repetición de compras.
Este documento presenta un formulario de búsqueda con preguntas sobre qué, dónde y cuánto dinero se busca. Ofrece opciones para buscar productos, empresas, personas o empresas dentro de un rango de precios.
Com Score Media Metrix Ranks Top 50 U.S. Web Properties For September 2009Ciro Electo
Television sites saw large increases in visitors in September as the new fall TV season began, with Yahoo! TV leading the category with nearly 20 million unique visitors, up 63%. Education and computer software sites also grew as students returned to school, with Pearson Education and Intuit among the top sites. Sports sites reached record numbers of visitors due to baseball playoff races and the start of football season, led by Yahoo! Sports with 38 million unique visitors, up 32%.
El documento enumera diferentes tipos de platos de solomillo y su cantidad de ventas. Luego lista diferentes tipos de cocina como arrocerías, asadores, cocina internacional, cocina marinera, cocina vegetariana y el número de restaurantes de cada tipo. Finalmente menciona el número de restaurantes por municipio.
El documento describe las principales características de un buscador local que permite a los usuarios encontrar información, productos y servicios en su zona. El buscador ofrece búsquedas por palabras clave, categorías, ubicación en un mapa y otros criterios. También permite refinar los resultados y presentarlos en diferentes formatos como lista, galería o ubicados en un mapa. El objetivo es integrar la información local con las herramientas y servicios en línea más utilizados.
1. The eBay Architecture
Striking a balance between site stability, feature velocity, performance, and cost
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SD Forum 2006
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Presented By: Randy Shoup and Dan Pritchett
Date: November 29, 2006