De idea a implementación con Varnish Plus
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En esta sesión presentaremos un escenario completo, basado en experiencias reales, en el que intervienen elementos exclusivos de Varnish Plus. Algunos de estos elementos fueron ya mencionados en sesiones previas y aquí veremos su uso en la práctica.
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Recomendados
De idea a implementación con Varnish Plus
El documento describe las diferentes etapas de implementación de una caché Varnish para el sitio web stockphotos.com, incluyendo la configuración inicial de Varnish, el uso de almacenamiento en masa (MSE) y alta disponibilidad (HA), la adición de SSL/TLS, el monitoreo y registro, y el control de acceso mediante rate limiting y autenticación. También se discuten técnicas adicionales como pruebas A/B, detección de dispositivos y monetización de descargas.
Varnish cache en ocho pasos
Este documento presenta 8 pasos progresivos para implementar Varnish Cache y acelerar aplicaciones web de forma incremental, desde simplemente usarlo como balanceador de carga hasta implementar caché avanzada y composición de contenido. Explica conceptos como el lenguaje de configuración VCL, modos como sólo pass-through, almacenar recursos estáticos y contenido semi-estático, compresión, grace mode, auto-purgado y sofisticadas estrategias de invalidación de caché.
Lightning fast with Varnish
The document provides an overview of using Varnish to accelerate web applications. Some key points:
- Varnish works by caching responses from backend servers in memory for future requests, reducing load on backends. It respects HTTP caching best practices like expiration, conditional requests, and cache variations.
- Configuration is done through Varnish Configuration Language (VCL) scripts which control caching behavior. Common tasks covered include setting cache rules, purging content, and normalizing requests.
- Techniques discussed include caching only safe requests, stripping cookies, blacklisting/whitelisting URLs, and using Edge Side Includes (ESI) to break pages into cacheable components. Guidelines are provided for optimizing caching of dynamic content.
Debugging varnish
This document discusses using varnishlog to debug VCL code that is not behaving as expected. It provides examples of how to use varnishlog to investigate 500 responses, misses, timing details, and requests over 5 seconds. It also discusses timestamps in varnishlog output and how they can help debug timing issues. Examples are given for reproducing issues using varnishtest. The document encourages reaching out for support and exploring panic dumps and core files if Varnish crashes.
انظمه التحكم ف الابواب
توفر الشركة جميع الأنظمة والمنتجات الخاصة بالتحكم فى البوابات والجراجات والهيئات والمؤسسات, فمن أجل الراحة والامان يمكنك التحكم فيها عن بعد باستخدام الريموت كنترول, حيث يمكنك التحكم فى :
بوابات الجراجات.
بوابات الفيلات.
بوابات المصانع.
مداخل ومخارج الهيئات والمؤسسات.
• حيث تتعامل الشركة مع كبرى الشركات وأشهر الماركات العالمية المتخصصة فى أنظمة البوابات والجراجات
تقدم الشركة ضمان على جميع الأجهزة لمدة سنة ضد عيوب الصناعة من تاريخ التركيب.
تقدم الشركة خدمات التركيب والبرمجة والصيانة والتدريب على استخدام جميع الأجهزة.
تقدم الشركة خدمة عقود صيانة بعد انتهاء فترة الضمان بأسعار خاصة لجميع العملاء.
نعتني بعملائنا الكرام ونقدم لهم أعلي مستوي من خدمة ما بعد البيع.
للاستعلام
منال زين
01118455507 - 01206001014
صفحتنا على الفيس بوك :
https://www.facebook.com/United.Communication.Systems
Email : Unitedtch@gmail.com
MSE
This document summarizes the Massive Storage Engine 2.0, which was built to address scaling issues with file- and memory-based backends in handling workloads with gigabytes of content. It features allocation that is fragmentation-proof and can scale to over 100 terabytes, with an LFU eviction approach. The architecture uses threads for reliable allocation across multiple segments with reduced locking. It also supports an optional persistent datastore by mirroring metadata to disk in an asynchronous manner with minimal impact to performance. Evaluation showed it handles larger files well and recovers quickly from crashes by reading the stored book of metadata.
Secretarias, la mano derecha del poder.
Este documento describe el papel de las secretarias en las grandes empresas. Las secretarias son un poder oculto que controlan la agenda de los ejecutivos, son testigos de grandes operaciones y saben más del negocio que muchos ejecutivos. A pesar de los avances tecnológicos, las secretarias siguen siendo esenciales para filtrar peticiones, dar prioridad a temas urgentes y ayudar a los ejecutivos a enfocarse.
E-commerce use case
Sheego originally built their e-commerce site on Intershop but moved to the OXID framework, which does not have built-in caching like Intershop. In 2014, Sheego started using open-source Varnish caching to improve site performance and in 2015 upgraded to Varnish Plus for professional support, monitoring tools, and high availability capabilities. This has led to advanced caching, less staff time needed for monitoring and support, and improved availability of content for their customers.
Recomendados
De idea a implementación con Varnish Plus
El documento describe las diferentes etapas de implementación de una caché Varnish para el sitio web stockphotos.com, incluyendo la configuración inicial de Varnish, el uso de almacenamiento en masa (MSE) y alta disponibilidad (HA), la adición de SSL/TLS, el monitoreo y registro, y el control de acceso mediante rate limiting y autenticación. También se discuten técnicas adicionales como pruebas A/B, detección de dispositivos y monetización de descargas.
Varnish cache en ocho pasos
Este documento presenta 8 pasos progresivos para implementar Varnish Cache y acelerar aplicaciones web de forma incremental, desde simplemente usarlo como balanceador de carga hasta implementar caché avanzada y composición de contenido. Explica conceptos como el lenguaje de configuración VCL, modos como sólo pass-through, almacenar recursos estáticos y contenido semi-estático, compresión, grace mode, auto-purgado y sofisticadas estrategias de invalidación de caché.
Lightning fast with Varnish
The document provides an overview of using Varnish to accelerate web applications. Some key points:
- Varnish works by caching responses from backend servers in memory for future requests, reducing load on backends. It respects HTTP caching best practices like expiration, conditional requests, and cache variations.
- Configuration is done through Varnish Configuration Language (VCL) scripts which control caching behavior. Common tasks covered include setting cache rules, purging content, and normalizing requests.
- Techniques discussed include caching only safe requests, stripping cookies, blacklisting/whitelisting URLs, and using Edge Side Includes (ESI) to break pages into cacheable components. Guidelines are provided for optimizing caching of dynamic content.
Debugging varnish
This document discusses using varnishlog to debug VCL code that is not behaving as expected. It provides examples of how to use varnishlog to investigate 500 responses, misses, timing details, and requests over 5 seconds. It also discusses timestamps in varnishlog output and how they can help debug timing issues. Examples are given for reproducing issues using varnishtest. The document encourages reaching out for support and exploring panic dumps and core files if Varnish crashes.
انظمه التحكم ف الابواب
توفر الشركة جميع الأنظمة والمنتجات الخاصة بالتحكم فى البوابات والجراجات والهيئات والمؤسسات, فمن أجل الراحة والامان يمكنك التحكم فيها عن بعد باستخدام الريموت كنترول, حيث يمكنك التحكم فى :
بوابات الجراجات.
بوابات الفيلات.
بوابات المصانع.
مداخل ومخارج الهيئات والمؤسسات.
• حيث تتعامل الشركة مع كبرى الشركات وأشهر الماركات العالمية المتخصصة فى أنظمة البوابات والجراجات
تقدم الشركة ضمان على جميع الأجهزة لمدة سنة ضد عيوب الصناعة من تاريخ التركيب.
تقدم الشركة خدمات التركيب والبرمجة والصيانة والتدريب على استخدام جميع الأجهزة.
تقدم الشركة خدمة عقود صيانة بعد انتهاء فترة الضمان بأسعار خاصة لجميع العملاء.
نعتني بعملائنا الكرام ونقدم لهم أعلي مستوي من خدمة ما بعد البيع.
للاستعلام
منال زين
01118455507 - 01206001014
صفحتنا على الفيس بوك :
https://www.facebook.com/United.Communication.Systems
Email : Unitedtch@gmail.com
MSE
This document summarizes the Massive Storage Engine 2.0, which was built to address scaling issues with file- and memory-based backends in handling workloads with gigabytes of content. It features allocation that is fragmentation-proof and can scale to over 100 terabytes, with an LFU eviction approach. The architecture uses threads for reliable allocation across multiple segments with reduced locking. It also supports an optional persistent datastore by mirroring metadata to disk in an asynchronous manner with minimal impact to performance. Evaluation showed it handles larger files well and recovers quickly from crashes by reading the stored book of metadata.
Secretarias, la mano derecha del poder.
Este documento describe el papel de las secretarias en las grandes empresas. Las secretarias son un poder oculto que controlan la agenda de los ejecutivos, son testigos de grandes operaciones y saben más del negocio que muchos ejecutivos. A pesar de los avances tecnológicos, las secretarias siguen siendo esenciales para filtrar peticiones, dar prioridad a temas urgentes y ayudar a los ejecutivos a enfocarse.
E-commerce use case
Sheego originally built their e-commerce site on Intershop but moved to the OXID framework, which does not have built-in caching like Intershop. In 2014, Sheego started using open-source Varnish caching to improve site performance and in 2015 upgraded to Varnish Plus for professional support, monitoring tools, and high availability capabilities. This has led to advanced caching, less staff time needed for monitoring and support, and improved availability of content for their customers.
A Novel Algorithm for Acoustic and Visual Classifiers Decision Fusion in Audi...
Audio-visual speech recognition (AVSR) using acoustic and visual signals of speech have received attention recently because of its robustness in noisy environments. Perceptual studies also support this approach by emphasizing the importance of visual information for speech recognition in humans. An important issue in decision fusion based AVSR system is how to obtain the appropriate integration weight for the speech modalities to integrate and ensure the combined AVSR system’s performances better than that of the audio-only and visual-only systems under various noise conditions. To solve this issue, we present a genetic algorithm (GA) based optimization scheme to obtain the appropriate integration weight from the relative reliability of each modality. The performance of the proposed GA optimized reliability-ratio based weight estimation scheme is demonstrated via single speaker, mobile functions isolated word recognition experiments. The results show that the proposed scheme improves robust recognition accuracy over the conventional unimodal systems and the baseline reliability ratio-based AVSR system under various signal to noise ratio conditions.
Varnish TLS
Hitch TLS is a small and fast TLS terminator that is bundled with Varnish Plus. It allows client-side TLS termination with Varnish Cache Plus handling encryption and decryption. TLS can also be used to encrypt connections to backends by adding ".ssl = 1" to backend definitions in Varnish. Hitch TLS supports features like OCSP stapling, PROXY protocol, and run-time reloads for updating certificates without interrupting service. Performance testing shows it can handle high throughput workloads with good scalability on commodity hardware.
VCL - the logic and logistics
VCL provides flexibility to define caching policies for web applications. It allows customizing caching behavior through logic statements and conditions. The document discusses using VCL to implement caching strategies and avoid common mistakes like caching incorrect or expired content.
Weather
The document describes different weather conditions in English and Polish, including sunny, hot, windy, cloudy, cold, raining, snowing, and foggy. It also includes a poem about bees making honey and bears eating honey in different weather. There is a quiz at the end to match weather conditions in English and Polish.
Access control
This document discusses different access control methods for purging content in Varnish, including IP-based access control, basic authentication, and cookie-based access control. It argues that cookie-based access control provides the optimal solution, describing how to generate and authenticate random cookies signed with a secret key to control access. The document then outlines how this approach is used to build a "Varnish auth tool kit" or "VARNISH PAYWALL" system for metered or subscription-based access control of content.
VCL - the logic and logistics
VCL is the configuration language for Varnish Cache that describes a state machine for requests. It compiles to C code for fast execution. The presentation discusses VCL compilation, debugging techniques like checking return values and hashes, coding best practices like using functions and avoiding regex, and testing VCL configurations.
Secure content caching
- Modern caching allows for security by using VCL (Varnish Configuration Language) for advanced caching logic and client identification.
- Client identification involves classifying clients based on information like cookies, local storage, or encryption/hashes of values. This allows origin servers to dynamically vary responses based on the identified client.
- Content access control lists (ACLs) can be applied to cached responses based on the identified client information, and client invalidation involves expiring client identification tokens or invalidating cached responses based on session identifiers.
Using PatSeer to search and analyze patents in Switchgear Technology
Switchgear is the combination of electrical disconnect switches, fuses or circuit
breakers used to control, protect and isolate electrical equipment. Switchgears are used both to de-energize equipment to allow work to be done and to clear faults downstream. This type of equipment is directly linked to the reliability of the electricity supply.
Contextos en la planeación estratégica
El documento discute el contexto de los mercados locales para pequeños y medianos productores orgánicos. Menciona que las ferias agrícolas son un modelo efectivo de comercialización que permite a los agricultores vender directamente a los consumidores. También describe ejemplos exitosos de ferias en Estados Unidos, Brasil y Costa Rica que apoyan a los productores locales y promueven una alimentación saludable.
Ask Me Anything on authentication & authorisation in Varnish
This document summarizes an Ask Me Anything session on authentication and authorization with Varnish Cache. The presenter discusses how Varnish can be used as an authentication portal by validating signatures in VCL. JSON Web Tokens (JWT) can be parsed and validated in Varnish using regular expressions and digest functions. In the future, a Policy Engine module will simplify configuring JWT authentication. While Varnish only supports HTTP protocols natively, modules could enable support for LDAP or RADIUS. Rate limiting of APIs can also be configured through the upcoming Policy Engine.
Boozt.com Use Case
Watch the recorded talk here: https://www.youtube.com/watch?v=Xs4s0Vy6XbY&list=PLAygWJGZrhWBkIkl_Pu3_AZzWwtBt_uyd&index=4
Akamai connector for varnish
This document discusses using the Akamai Connector for Varnish to simplify operations between a Varnish cache and Akamai's edge caching network. It highlights common challenges with duplicating caching logic and managing lifecycle changes. The connector architecture allows caching policies to be defined in VCL and automatically propagated to Akamai. An example demo purges a file from both Varnish and Akamai caches. Attendees are encouraged to join the early access program to try the integration.
Varnish High Availability
Varnish is a proxy server that can be configured for high availability (HA) to increase its availability, cache capacity, and reduce backend load. Varnish Plus is a small external daemon that provides HA by replicating the cache across multiple Varnish servers. It uses an asynchronous replication method with a simple architecture and easy configuration. A demo showed that combining replication with sharding increased availability to 3x and cache capacity to 4x while keeping the backend load at 1x.
PostNord: Copy On Write
This document discusses using a copy-on-write cache accelerator pattern and Varnish cache to optimize a microservice that allows customers to specify a favorite delivery location. Implementing a persistent cache with Varnish Cache Plus and transaction logging would make the solution robust and scalable by handling cache updates asynchronously and repopulating the cache if needed. This caching approach is well-suited for services with an expected low cache hit rate and improves performance by consuming fewer resources than directly calling the microservice.
Varnish extend
This document discusses Varnish Extend, which provides tools and services to flexibly deploy Varnish caching and other content delivery technologies. It can be used to build hybrid CDNs, leverage existing data centers for delivery, or create a fully custom DIY CDN. The key components are Varnish Plus for caching, Cedexis Radar for intelligent routing, and Cedexis Purge for unified purging across delivery architectures. An example implementation is shown with Varnish deployed at edge POPs and an origin server, using Varnish High Availability (VHA) for replication between nodes. Configuration details are provided for VCS statistics, Cedexis Radar and Openmix load balancing, and VHA. The document demonstrates how V
Streaming with Varnish
Streaming media over HTTP has become widespread due to its efficiency and ability to cache content globally using CDNs. This allows media to be streamed far and wide without buffering issues. While early solutions like Move Networks and Apple HLS paved the way starting in 2008, technologies like Microsoft Smooth Streaming, Netflix's own solution, Adobe HDS, and MPEG-DASH soon followed to make adaptive streaming over HTTP the dominant approach.
Edgestash
This document introduces Edgestash, a templating system that uses JSON data and EdgeSide Includes (ESI) to render templates on the edge cache. It discusses how Edgestash works using Varnish Cache to parse responses, index JSON, and execute templates. The document outlines the benefits of Edgestash like faster load times and less CPU usage. It also covers the syntax used in Edgestash templates and example Varnish Configuration Language code.
What is new in varnish plus
- The document appears to be a presentation about intelligent TCP acceleration and parallel ESI features in Varnish software.
- It discusses Varnish Plus for intelligent TCP acceleration across edge nodes to optimize content delivery.
- It also describes a new parallel ESI feature that allows Varnish to process multiple ESI includes at once for better performance compared to processing them one at a time.
- There is a Q&A section at the end to discuss these topics further.
Más contenido relacionado
Destacado
A Novel Algorithm for Acoustic and Visual Classifiers Decision Fusion in Audi...
Audio-visual speech recognition (AVSR) using acoustic and visual signals of speech have received attention recently because of its robustness in noisy environments. Perceptual studies also support this approach by emphasizing the importance of visual information for speech recognition in humans. An important issue in decision fusion based AVSR system is how to obtain the appropriate integration weight for the speech modalities to integrate and ensure the combined AVSR system’s performances better than that of the audio-only and visual-only systems under various noise conditions. To solve this issue, we present a genetic algorithm (GA) based optimization scheme to obtain the appropriate integration weight from the relative reliability of each modality. The performance of the proposed GA optimized reliability-ratio based weight estimation scheme is demonstrated via single speaker, mobile functions isolated word recognition experiments. The results show that the proposed scheme improves robust recognition accuracy over the conventional unimodal systems and the baseline reliability ratio-based AVSR system under various signal to noise ratio conditions.
Varnish TLS
Hitch TLS is a small and fast TLS terminator that is bundled with Varnish Plus. It allows client-side TLS termination with Varnish Cache Plus handling encryption and decryption. TLS can also be used to encrypt connections to backends by adding ".ssl = 1" to backend definitions in Varnish. Hitch TLS supports features like OCSP stapling, PROXY protocol, and run-time reloads for updating certificates without interrupting service. Performance testing shows it can handle high throughput workloads with good scalability on commodity hardware.
VCL - the logic and logistics
VCL provides flexibility to define caching policies for web applications. It allows customizing caching behavior through logic statements and conditions. The document discusses using VCL to implement caching strategies and avoid common mistakes like caching incorrect or expired content.
Weather
The document describes different weather conditions in English and Polish, including sunny, hot, windy, cloudy, cold, raining, snowing, and foggy. It also includes a poem about bees making honey and bears eating honey in different weather. There is a quiz at the end to match weather conditions in English and Polish.
Access control
This document discusses different access control methods for purging content in Varnish, including IP-based access control, basic authentication, and cookie-based access control. It argues that cookie-based access control provides the optimal solution, describing how to generate and authenticate random cookies signed with a secret key to control access. The document then outlines how this approach is used to build a "Varnish auth tool kit" or "VARNISH PAYWALL" system for metered or subscription-based access control of content.
VCL - the logic and logistics
VCL is the configuration language for Varnish Cache that describes a state machine for requests. It compiles to C code for fast execution. The presentation discusses VCL compilation, debugging techniques like checking return values and hashes, coding best practices like using functions and avoiding regex, and testing VCL configurations.
Secure content caching
- Modern caching allows for security by using VCL (Varnish Configuration Language) for advanced caching logic and client identification.
- Client identification involves classifying clients based on information like cookies, local storage, or encryption/hashes of values. This allows origin servers to dynamically vary responses based on the identified client.
- Content access control lists (ACLs) can be applied to cached responses based on the identified client information, and client invalidation involves expiring client identification tokens or invalidating cached responses based on session identifiers.
Using PatSeer to search and analyze patents in Switchgear Technology
Switchgear is the combination of electrical disconnect switches, fuses or circuit
breakers used to control, protect and isolate electrical equipment. Switchgears are used both to de-energize equipment to allow work to be done and to clear faults downstream. This type of equipment is directly linked to the reliability of the electricity supply.
Contextos en la planeación estratégica
El documento discute el contexto de los mercados locales para pequeños y medianos productores orgánicos. Menciona que las ferias agrícolas son un modelo efectivo de comercialización que permite a los agricultores vender directamente a los consumidores. También describe ejemplos exitosos de ferias en Estados Unidos, Brasil y Costa Rica que apoyan a los productores locales y promueven una alimentación saludable.
Destacado (13)
A Novel Algorithm for Acoustic and Visual Classifiers Decision Fusion in Audi...
A Novel Algorithm for Acoustic and Visual Classifiers Decision Fusion in Audi...
Using PatSeer to search and analyze patents in Switchgear Technology
Using PatSeer to search and analyze patents in Switchgear Technology
Más de Varnish Software
Ask Me Anything on authentication & authorisation in Varnish
This document summarizes an Ask Me Anything session on authentication and authorization with Varnish Cache. The presenter discusses how Varnish can be used as an authentication portal by validating signatures in VCL. JSON Web Tokens (JWT) can be parsed and validated in Varnish using regular expressions and digest functions. In the future, a Policy Engine module will simplify configuring JWT authentication. While Varnish only supports HTTP protocols natively, modules could enable support for LDAP or RADIUS. Rate limiting of APIs can also be configured through the upcoming Policy Engine.
Boozt.com Use Case
Watch the recorded talk here: https://www.youtube.com/watch?v=Xs4s0Vy6XbY&list=PLAygWJGZrhWBkIkl_Pu3_AZzWwtBt_uyd&index=4
Akamai connector for varnish
This document discusses using the Akamai Connector for Varnish to simplify operations between a Varnish cache and Akamai's edge caching network. It highlights common challenges with duplicating caching logic and managing lifecycle changes. The connector architecture allows caching policies to be defined in VCL and automatically propagated to Akamai. An example demo purges a file from both Varnish and Akamai caches. Attendees are encouraged to join the early access program to try the integration.
Varnish High Availability
Varnish is a proxy server that can be configured for high availability (HA) to increase its availability, cache capacity, and reduce backend load. Varnish Plus is a small external daemon that provides HA by replicating the cache across multiple Varnish servers. It uses an asynchronous replication method with a simple architecture and easy configuration. A demo showed that combining replication with sharding increased availability to 3x and cache capacity to 4x while keeping the backend load at 1x.
PostNord: Copy On Write
This document discusses using a copy-on-write cache accelerator pattern and Varnish cache to optimize a microservice that allows customers to specify a favorite delivery location. Implementing a persistent cache with Varnish Cache Plus and transaction logging would make the solution robust and scalable by handling cache updates asynchronously and repopulating the cache if needed. This caching approach is well-suited for services with an expected low cache hit rate and improves performance by consuming fewer resources than directly calling the microservice.
Varnish extend
This document discusses Varnish Extend, which provides tools and services to flexibly deploy Varnish caching and other content delivery technologies. It can be used to build hybrid CDNs, leverage existing data centers for delivery, or create a fully custom DIY CDN. The key components are Varnish Plus for caching, Cedexis Radar for intelligent routing, and Cedexis Purge for unified purging across delivery architectures. An example implementation is shown with Varnish deployed at edge POPs and an origin server, using Varnish High Availability (VHA) for replication between nodes. Configuration details are provided for VCS statistics, Cedexis Radar and Openmix load balancing, and VHA. The document demonstrates how V
Streaming with Varnish
Streaming media over HTTP has become widespread due to its efficiency and ability to cache content globally using CDNs. This allows media to be streamed far and wide without buffering issues. While early solutions like Move Networks and Apple HLS paved the way starting in 2008, technologies like Microsoft Smooth Streaming, Netflix's own solution, Adobe HDS, and MPEG-DASH soon followed to make adaptive streaming over HTTP the dominant approach.
Edgestash
This document introduces Edgestash, a templating system that uses JSON data and EdgeSide Includes (ESI) to render templates on the edge cache. It discusses how Edgestash works using Varnish Cache to parse responses, index JSON, and execute templates. The document outlines the benefits of Edgestash like faster load times and less CPU usage. It also covers the syntax used in Edgestash templates and example Varnish Configuration Language code.
What is new in varnish plus
- The document appears to be a presentation about intelligent TCP acceleration and parallel ESI features in Varnish software.
- It discusses Varnish Plus for intelligent TCP acceleration across edge nodes to optimize content delivery.
- It also describes a new parallel ESI feature that allows Varnish to process multiple ESI includes at once for better performance compared to processing them one at a time.
- There is a Q&A section at the end to discuss these topics further.
Varnish Extend demo
This document summarizes a presentation about Varnish Extend and its components. Varnish Extend allows for multi-CDN, hybrid CDN, and DIY CDN configurations using Varnish Plus and Cedexis. Cedexis provides real-user monitoring, programmable load balancing, and purging capabilities. The demo architecture shows how Varnish Plus can be deployed on the edge and shield tiers for caching and load balancing traffic to origin servers.
Varnish extend introduction
Varnish Extend is a bundled software and services solution that allows users to build a content delivery network (CDN) in four hours. It uses Varnish Plus for intelligent caching, Cedexis for global load balancing and purging, and can direct global traffic to servers optimally. The solution aims to remove the need for an "all or nothing" CDN strategy by strengthening origin servers and adding secondary datacenters. It leverages CDNs only when primary servers cannot optimally serve traffic. The components used include Varnish Cache Plus, Varnish High Availability (VHA), and Cedexis Openmix for global load balancing.
Cedexis introduction
This document summarizes the services provided by Cedexis to deliver optimized user experiences on the web, mobile and video. Cedexis gathers real-time performance data from over 500 million user sessions across networks globally to monitor over 125 CDNs and cloud providers. It uses this community-based data to detect outages and issues in real-time. Cedexis then provides intelligent routing of users to the best performing platforms based on customized business criteria to ensure high availability, performance and cost efficiency across devices and locations. Major global brands trust Cedexis to optimize the delivery of their digital experiences.
Microservices
This document discusses using microservices with Varnish caching for improved performance and scalability. It describes moving from a monolithic Java application to many small, stateless services with Varnish caching all data. Key-value caching is implemented using X-Key to invalidate cache dynamically based on HTTP headers. This allows related cached objects to be automatically invalidated on a cache purge. The architecture has proven effective over 10 years in production by reducing complexity, improving debugging and scaling through statelessness and caching with Varnish and X-Key.
Varnishtest
This document summarizes David Porter's talk about leveraging the power of Varnish Configuration Language (VCL) and Varnishtest. It outlines how the company improved their practices around traffic routing, caching, and testing of VCL configurations by adopting automation tools like Puppet and Jenkins for configuration management and continuous integration, using Docker for testing environments, and implementing a software development life cycle with peer review and version control for VCL files. This allowed them to move from a problematic, manual process to one where configurations are more robust, standardized across environments, and collaboratively developed and tested.
Varnish plus con paywall avanzado en la voz de galicia
El documento describe el sistema de control de acceso implementado por LaVozdeGalicia utilizando Varnish Plus. LaVozdeGalicia usa Varnish Plus en AWS para almacenar en caché y entregar contenido, aplicar un paywall flexible, y autenticar usuarios a través de SSO. Varnish Plus integra varias capas incluyendo caché, alta disponibilidad, almacenamiento masivo, y control de acceso avanzado.
Detalles técnicos e impacto de negocio de varnish plus
Varnish Plus ofrece una versión estable de Varnish Cache orientada a entornos críticos con alta disponibilidad y soporte técnico las 24 horas. Incluye módulos adicionales como almacenamiento masivo multi-TB, consola de administración, replicación entre servidores y control de acceso avanzado para mejorar el rendimiento, la escalabilidad y la experiencia del usuario.
Debugging forensics
This document provides an overview of how to conduct debugging for Varnish like a forensic investigation. It discusses gathering information from the Varnish instance and related systems using tools like varnishgather. The scientific method is recommended for analyzing problems by making observations, formulating hypotheses, experimenting, and repeating. Non-standard debugging techniques are also mentioned, such as pretending it's not a bug or being creative. Monitoring is presented as a way to prevent bugs by correlating events and anticipating failures from trends.
Kering use case
The document provides an overview of Kering's use of Varnish for caching and accelerating websites. It discusses Kering's history with Varnish beginning in 2009 when it moved infrastructure to France and used Varnish to replace Akamai for caching brands like La Redoute. It describes upgrades to newer Varnish versions and server hardware in 2014. The new infrastructure uses virtualized Varnish instances and the multitenant Varnish Administration Console for management.
Handelsbanken use case
Handelsbanken secured their digital presence and websites with Varnish to improve performance and availability. They implemented a solution with 2 redundant Varnish servers caching content from 2 application servers. This allowed constant fast changes to their content-driven services while maintaining high availability 24/7. Varnish cached over 93.5% of requests for their self-service banking, improving performance.
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De idea a implementación con Varnish Plus
- 1. De idea a implementación con Varnish Plus Construyendo www.stockphotos.com Carlos Abalde cabalde@allenta.com Madrid, 20 de octubre de 2016
- 12. ¡Y ahora sin caché!
- 18. ¿Para cuándo SSL/TLS? […] huge waste of time to even think about it!
- 19. Terminación SSL/TLS $ cat /etc/default/varnish ... DAEMON_OPTS="-a :80 -a 127.0.0.1:6086,PROXY ..."
- 21. Reporting
- 25. Bloqueo de robots ๏ Bloqueo de las descargas masivas de imágenes en alta resolución ‣ Rate limiting indexado por IP de origen ‣ VMODs vsthrottle, redis, memcached… ๏ Bloqueo vs. reCAPTCHA + token HMAC ๏ ¿Y los web crawlers?
- 26. Bonos de descargas ๏ Monetización complementaria a la publicidad ‣ Web abierta, excepto la descarga de imágenes en alta resolución, que requiere de registro / autenticación ‣ Usuarios pueden descargar hasta cinco imágenes en alta resolución a la semana sin coste, pudiendo prescindir de ese límite comprando un bono de descargas ๏ ¿Y los web crawlers?
- 27. A/B testing, varnishtest, VAC, device detection… https://www.flickr.com/photos/eldholm/2354982554/