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  • 404 redirect with cloud storage

    - by Jeremy DeGroot
    I'm hoping to reach someone with some experience using a service like Amazon's S3 with this question. On my site we have a dedicated image server. And on this server, we have an automatic 404 redirect through Apapche so that, if a user tries to access an image that doesn't exist, they'll see a snazzy "Image Not Available" image. We're looking to move the hosting of these images to a cloud storage solution (S3 or Rackspace's CloudFiles), and I'm wondering if anyone's had any success replicating this behavior on a cloud storage service and if so how they did it.

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  • Pros and cons of cloud computing?

    - by Vimvq1987
    After 3 months of research, my thesis is nearly complete. Now I'm writing the report. Interesting parts are finished, now the boring and hard-to-write parts. I need to write about pros and cons of cloud computing. What it gives us and what it take us. I've searched much but there's only list, no explains. So I need your helps, to list and explains all of pros and cons of cloud computing. Thank you so much for this.

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  • HA with nginx and cloud environment

    - by gotts
    I have a node in cloud environment which is used now as nginx and mongrels behind it. This is what nginx config looks like: upstream mongrel { server 127.0.0.1:8000; server 127.0.0.1:8001; server 127.0.0.1:8002; } I want to achieve the following: add another node nginx has to know about this new node automatically without stopping him, changing config(manually adding new node's mongrels) and starting it again. How can I make my load balancer(nginx) work in the way so it can be self-aware of nodes in cloud?

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  • Tag Cloud Data Backend

    - by Waldron
    I want to be able to generate tag clouds from free text that comes from any number of different sources. For clarity, I'm not talking about how to display a tag cloud once the critical tags/phrases are already discovered, I'm hoping to be able to discover the meaningful phrases themselves... preferable on a PHP/MySQL stack. If I had to do this myself, I'd start by establishing some kind of index for words/phrases that gives a "normal" frequency for any word/phrase. eg "Constantinople" occurs once in every 1,000,000 words on average (normal frequency "0.000001"). Then as I analyze a body of text, I'd find the individual words/phrases (another challenge!), find frequencies of each within the input, and measure against the expected freqeuncy. Words that have the highest ratio against expected frequency get boosted priority in the cloud. I'd like to believe someone else has already done this, WAY better than I could hope to, but I'll be damned if I can find it. Any recommendations??

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  • Cloud Apps and Single Sign-On (AD integration)

    - by Pablo Alvim
    I've been investigating some cloud vendors and the ability to implement single sign-on with them, especially when it comes to AD (Active Directory) integration. So far I've learned that with Azure this is possible through ADFS and the AppFabric Access Control offer. In AWS, since it is possible to create a VPN and see EC2 instances as a natural extension of a private datacenter, I believe implementing SSO would be rather simple (not sure if I'm right on this one... Please correct me if I'm wrong). With App Engine though, even though there is some documentation on AD synchronization (not full integration) for Google Apps, I'm struggling to find out whether AD integration would be possible... Is there any strategy for that? Any bit of information on cloud apps and AD integration will be appreciated!

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  • Windows Azure Learning Plan - Architecture

    - by BuckWoody
    This is one in a series of posts on a Windows Azure Learning Plan. You can find the main post here. This one deals with what an Architect needs to know about Windows Azure.   General Architectural Guidance Overview and general  information about Azure - what it is, how it works, and where you can learn more. Cloud Computing, A Crash Course for Architects (Video) http://www.msteched.com/2010/Europe/ARC202 Patterns and Practices for Cloud Development http://msdn.microsoft.com/en-us/library/ff898430.aspx Design Patterns, Anti-Patterns and Windows Azure http://blogs.msdn.com/b/ignitionshowcase/archive/2010/11/27/design-patterns-anti-patterns-and-windows-azure.aspx Application Patterns for the Cloud http://blogs.msdn.com/b/kashif/archive/2010/08/07/application-patterns-for-the-cloud.aspx Architecting Applications for High Scalability (Video) http://www.msteched.com/2010/Europe/ARC309 David Aiken on Azure Architecture Patterns (Video) http://blogs.msdn.com/b/architectsrule/archive/2010/09/09/arcast-tv-david-aiken-on-azure-architecture-patterns.aspx Cloud Application Architecture Patterns (Video) http://blogs.msdn.com/b/bobfamiliar/archive/2010/10/19/cloud-application-architecture-patterns-by-david-platt.aspx 10 Things Every Architect Needs to Know about Windows Azure http://geekswithblogs.net/iupdateable/archive/2010/10/20/slides-and-links-for-windows-azure-platform-session-at-software.aspx Key Differences Between Public and Private Clouds http://blogs.msdn.com/b/kadriu/archive/2010/10/24/key-differences-between-public-and-private-clouds.aspx Microsoft Application Platform at a Glance http://blogs.msdn.com/b/jmeier/archive/2010/10/30/microsoft-application-platform-at-a-glance.aspx Windows Azure is not just about Roles http://vikassahni.wordpress.com/2010/11/17/windows-azure-is-not-just-about-roles/ Example Application for Windows Azure http://msdn.microsoft.com/en-us/library/ff966482.aspx Implementation Guidance Practical applications for the architect to consider 5 Enterprise steps for adopting a Platform as a Service http://blogs.msdn.com/b/davidmcg/archive/2010/12/02/5-enterprise-steps-for-adopting-a-platform-as-a-service.aspx?wa=wsignin1.0 Performance-Based Scaling in Windows Azure http://msdn.microsoft.com/en-us/magazine/gg232759.aspx Windows Azure Guidance for the Development Process http://blogs.msdn.com/b/eugeniop/archive/2010/04/01/windows-azure-guidance-development-process.aspx Microsoft Developer Guidance Maps http://blogs.msdn.com/b/jmeier/archive/2010/10/04/developer-guidance-ia-at-a-glance.aspx How to Build a Hybrid On-Premise/In Cloud Application http://blogs.msdn.com/b/ignitionshowcase/archive/2010/11/09/how-to-build-a-hybrid-on-premise-in-cloud-application.aspx A Common Scenario of Multi-instances in Windows Azure http://blogs.msdn.com/b/windows-azure-support/archive/2010/11/03/a-common-scenario-of-multi_2d00_instances-in-windows-azure-.aspx Slides and Links for Windows Azure Platform Best Practices http://geekswithblogs.net/iupdateable/archive/2010/09/29/slides-and-links-for-windows-azure-platform-best-practices-for.aspx AppFabric Architecture and Deployment Topologies guide http://blogs.msdn.com/b/appfabriccat/archive/2010/09/10/appfabric-architecture-and-deployment-topologies-guide-now-available-via-microsoft-download-center.aspx Windows Azure Platform Appliance http://www.microsoft.com/windowsazure/appliance/ Integrating Cloud Technologies into Your Organization Interoperability with Open Source and other applications; business and cost decisions Interoperability Labs at Microsoft http://www.interoperabilitybridges.com/ Windows Azure Service Level Agreements http://www.microsoft.com/windowsazure/sla/

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  • Interaction between two Clouds

    - by Snehal Masne
    I have setup the Cloud-A with 1 - [CLC+CC] and 2 - [NC] computers. I have another Cloud-B with same configuration. [using the Ubuntu Enterprise Cloud] Both of them working fine individually, in the same LAN. Now if I want to add the NC of Cloud-A to CC of Cloud-B, [in case the resources of Cloud-B are exhausted] how can I make it possible ? I guess this calls for the interoperability stuff... Could you please explain what happens exactly when we ask for instance, the direct interaction happens between the client and NC or it goes through the CLC and CC ? What I want to say is, say there are multiple cloud providers. A user is subscribed to any one of them, say Cloud-A for IaaS. As the requirements are dynamic, all the resources of Cloud-A may get exhausted. There may be another Cloud-B which can provide the services but that Cloud-A can't ask the client to go for Cloud-B. So if it is possible to have some co-ordination between this two providers to share resources mutually, making client fully unaware of whats going on in the background....? Please reply.. I am sorry if I'm doing mistake anywhere... Thanks in advance :) Regards, www.TechProceed.com

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  • Interaction between two Clouds

    - by Snehal Masne
    I have setup the Cloud-A with 1 - [CLC+CC] and 2 - [NC] computers. I have another Cloud-B with same configuration using the Ubuntu Enterprise Cloud Both of them working fine individually, in the same LAN. Now if I want to add the NC of Cloud-A to CC of Cloud-B, [in case the resources of Cloud-B are exhausted] how can I make it possible ? I guess this calls for the interoperability stuff... Could you please explain what happens exactly when we ask for instance, the direct interaction happens between the client and NC or it goes through the CLC and CC ? What I want to say is, say there are multiple cloud providers. A user is subscribed to any one of them, say Cloud-A for IaaS. As the requirements are dynamic, all the resources of Cloud-A may get exhausted. There may be another Cloud-B which can provide the services but that Cloud-A can't ask the client to go for Cloud-B. So if it is possible to have some co-ordination between this two providers to share resources mutually, making client fully unaware of whats going on in the background....?

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  • ¿Qué es Social Cloud o computación en la nube social?

    - by RED League Heroes-Oracle
    La computación en nube es la creación de nuevas posibilidades para las empresas en sus negocios, como acercarse a los clientes a través de herramientas digitales. Es cruzar informaciones del registro de los clientes almacenadas en los servidores de la empresa, con informaciones sociales, o sea, con informaciones disponibles en la internet (redes sociales, blogs, geolocalización). Este cruce, seguramente, puede ayudar a entender mejor el comportamiento de sus consumidores y, a través de estos análisis, tomar diferentes acciones para estar cada vez más cerca de ellos o entender nuevas necesidades. El comportamiento de consumo se está alterando con el avance de la internet y de las nuevas tecnologías. Integrar estas nuevas tecnologías al negocio de la empresa es una gran oportunidad para acompañar los consumidores y observar nuevos patrones de comportamiento. Estos nuevos patrones pueden presentar nuevas oportunidades. Utilizar la computación en la nube para agregar conocimiento adicional a los que ya lo poseen puede ser una de las claves para la transformación de la realidad de la empresa. Actualmente, ¿cómo se comportan tus consumidores? ¿Qué suelen hacer? ¿Viajan mensualmente? ¿Tienen hijos? ¿Están buscando nuevos productos? ¿Qué productos buscan? ¿Dónde la mayor parte de tus consumidores está en el momento de ocio? ¡Saber dónde están en el momento de ocio puede ser una excelente oportunidad para que vean tu marca! ¿Cómo tratas hoy en día esos temas? ¡Las soluciones de Social Cloud de Oracle pueden ayudarte! Aprovecha y descarga GRATUITAMENTE el e-book – Simplifica tu movilidad empresarial y conoce el poder de transformación de la movilidad en tu negocio. LINK PARA DESCARGA: http://bit.ly/e-bookmobilidad

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  • Clouds, Clouds, Clouds Everywhere, Not a Drop of Rain!

    - by sxkumar
    At the recently concluded Oracle OpenWorld 2012, the center of discussion was clearly Cloud. Over the five action packed days, I got to meet a large number of customers and most of them had serious interest in all things cloud.  Public Cloud - particularly the Oracle Cloud - clearly got a lot of attention and interest. I think the use cases and the value proposition for public cloud is pretty straight forward. However, when it comes to private cloud, there were some interesting revelations.  Well, I shouldn’t really call them revelations since they are pretty consistent with what I have heard from customers at other conferences as well as during 1:1 interactions. While the interest in enterprise private cloud remains to be very high, only a handful of enterprises have truly embarked on a journey to create what the purists would call true private cloud - with capabilities such as self-service and chargeback/show back. For a large majority, today's reality is simply consolidation and virtualization - and they are quite far off from creating an agile, self-service and transparent IT infrastructure which is what the enterprise cloud is all about.  Even a handful of those who have actually implemented a close-to-real enterprise private cloud have taken an infrastructure centric approach and are seeing only limited business upside. Quite a few were frank enough to admit that chargeback and self-service isn’t something that they see an immediate need for.  This is in quite contrast to the picture being painted by all those surveys out there that show a large number of enterprises having already implemented an enterprise private cloud.  On the face of it, this seems quite contrary to the observations outlined above. So what exactly is the reality? Well, the reality is that there is undoubtedly a huge amount of interest among enterprises about transforming their legacy IT environment - which is often seen as too rigid, too fragmented, and ultimately too expensive - to something more agile, transparent and business-focused. At the same time however, there is a great deal of confusion among CIOs and architects about how to get there. This isn't very surprising given all the buzz and hype surrounding cloud computing. Every IT vendor claims to have the most unique solution and there isn't a single IT product out there that does not have a cloud angle to it. Add to this the chatter on the blogosphere, it will get even a sane mind spinning.  Consequently, most  enterprises are still struggling to fully understand the concept and value of enterprise private cloud.  Even among those who have chosen to move forward relatively early, quite a few have made their decisions more based on vendor influence/preferences rather than what their businesses actually need.  Clearly, there is a disconnect between the promise of the enterprise private cloud and the current adoption trends.  So what is the way forward?  I certainly do not claim to have all the answers. But here is a perspective that many cloud practitioners have found useful and thus worth sharing. To take a step back, the fundamental premise of the enterprise private cloud is IT transformation. It is the quest to create a more agile, transparent and efficient IT infrastructure that is driven more by business needs rather than constrained by operational and procedural inefficiencies. It is the new way of delivering and consuming IT services - where the IT organizations operate more like enablers of  strategic services rather than just being the gatekeepers of IT resources. In an enterprise private cloud environment, IT organizations are expected to empower the end users via self-service access/control and provide the business stakeholders a transparent view of how the resources are being used, what’s the cost of delivering a given service, how well are the customers being served, etc.  But the most important thing to note here is the enterprise private cloud is not just an IT project, rather it is a business initiative to create an IT setup that is more aligned with the needs of today's dynamic and highly competitive business environment. Surprised? You shouldn’t be. Just remember how the business users have been at the forefront of public cloud adoption within enterprises and private cloud is no exception.   Such a broad-based transformation makes cloud more than a technology initiative. It requires people (organizational) and process changes as well, and these changes are as critical as is the choice of right tools and technology. In my next blog,  I will share how essential it is for enterprise cloud technology to go hand-in hand with process re-engineering and organization changes to unlock true value of  enterprise cloud. I am sharing a short video from my session "Managing your private Cloud" at Oracle OpenWorld 2012. More videos from this session will be posted at the recently introduced Zero to Cloud resource page. Many other experts of Oracle enterprise private cloud solution will join me on this blog "Zero to Cloud"  and share best practices , deployment tips and information on how to plan, build, deploy, monitor, manage , meter and optimize the enterprise private cloud. We look forward to your feedback, suggestions and having an engaging conversion with you on this blog.

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  • Ubuntu One - Files API - Cloud - More detailed info somehwere?

    - by Brian McCavour
    I am just starting on a mobile app for Ubuntu One, and I'm reviewing the info at https://one.ubuntu.com/developer/files/store_files/cloud I find the information a bit lacking though. It's a nice reference, but for someone not familiar with it, I had to goggle search to find out what a "volume" was exactly (its kind of obvious, but never hurts to know the specifics) There's also things like: GET /api/file_storage/v1/volumes Return a JSON list of Volume Representations, one for each volume. A volume is a synced folder, or the Ubuntu One folder, owned by the user. Note that all volume paths begin with ~.: ... but there's no such thing as a JSON "list". Does it mean array ? And other things... So I was wondering if here existed another page with more detailed information. Maybe some sample request / responses or something? I could just write a little proof of concept app to answer some of these questions... but I prefer not to unless I have to. Thanks

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  • "cloud architecture" concepts in a system architecture diagrams

    - by markus
    If you design a distributed application for easy scale-out, or you just want to make use of any of the new “cloud computing” offerings by Amazon, Google or Microsoft, there are some typical concepts or components you usually end up using: distributed blob storage (aka S3) asynchronous, durable message queues (aka SQS) non-Relational-/non-transactional databases (like SimpleDB, Google BigTable, Azure SQL Services) distributed background worker pool load-balanced, edge-service processes handling user requests (often virtualized) distributed caches (like memcached) CDN (content delivery network like Akamai) Now when it comes to design and sketch an architecture that makes use of such patterns, are there any commonly used symbols I could use? Or even a download with some cool Visio stencils? :) It doesn’t have to be a formal system like UML but I think it would be great if there were symbols that everyone knows and understands, like we have commonly used shapes for databases or a documents, for example. I think it would be important to not mix it up with traditional concepts like a normal file system (local or network server/SAN), or a relational database. Simply speaking, I want to be able to draw some conclusions about an application’s scalability or data consistency issues by just looking at the system architecture overview diagram. Update: Thank you very much for your answers. I like the idea of putting a small "cloud symbol" on the traditional symbols. However I leave this thread open just in case someone will find specific symbols (maybe in a book or so) - or uploaded some pimped up Visio stencils ;)

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  • Using inotify-tools and ruby to push uploads to Cloud Files

    - by Christian
    Hi Guys, I wrote a few scripts to monitor an uploads directory for changes, then capture the file uploaded/changed and push it to cloud files using a ruby script. This all works well 95% of the time, the only exception is that occasionally, ruby fails with a 'file does not exist' exception. I am assuming that the ruby 'push' script is being called before the file is 100% in its new location, so the script is being called a little prematurely. I tried adding a little function to my script to check if the file exists, if it doesn't, sleep 5 then try again, but this seems to snowball and eventually dies. I then just added a sleep 2 to all calls, but it hasn't helped as I now get the 'file does not exist' error again. #!/bin/sh function checkExists { if [ ! -e "$1" ] then sleep 5 checkExists $1 fi } inotifywait -mr --timefmt '%d/%m/%y-%H:%M' --format '%T %w %f' -e modify,moved_to,create,delete /home/skylines/html/forums/uploads | while read date dir file; do cloudpath=${dir:20}${file} localpath=${dir}${file} #checkExists $localpath sleep 2 ruby /home/cbiggins/bin/pushToCloud.rb skylinesaustralia.com $cloudpath $localpath echo "${date} ruby /home/cbiggins/bin/pushToCloud.rb skylinesaustralia.com $cloudpath $localpath" >> /var/log/pushToCloud.log done I am looking for any suggestions to help me make this 100% stable (eventually, I'll serve the uploaded files from Cloud FIles, so I need to make sure its perfect) Thanks in advance!

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  • JD Edwards in the Cloud…Really Already!

    - by user709270
    Yes, there is a lot of conversation about Oracle and the cloud.  Many of you may assume that Oracle applications in the cloud  only apply to Oracle Fusion Applications.  And JD Edwards customers are curious about if, when and how JD Edwards might be offered to them as a subscription offering.  The truth of the matter is that Oracle partners today are providing a JD Edwards subscription offering.  In order to help you understand what’s available, please read on for the reader’s digest version! Let’s start with a definition.  JD Edwards EnterpriseOne is available as an Accelerate subscription.  Oracle “Accelerate” subscription is Oracle's approach for providing simple to deploy, packaged, enterprise-class software solutions to growing midsize organizations through its network of expert partners. The partners that offer Oracle  JD Edwards Accelerate Subscriptions do so via their Partner Private Clouds (PPC).  The Oracle JD Edwards cloud solutions are offered only by qualified Oracle JD Edwards partners and they provide customers a complete Oracle solution that includes license software, maintenance, hosting and other services on a monthly subscription basis.  Qualified partners must be members of Oracle PartnerNetwork, be an Oracle Accelerate solutions provider and be enabled to deliver JD Edwards applications via Oracle Business Accelerator rapid implementation technology.  Currently we have many JD Edwards partners around the globe that offer the JD Edwards Accelerate Subscription model.  To access a list of Oracle JD Edwards partners currently in this program click here.  To learn more about Oracle JD Edwards Cloud Computing read this recently published white paper:   Oracle JD Edwards Cloud Computing. Choosing a deployment strategy that fits

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  • Microsoft gets a first for it&rsquo;s cloud security

    - by TATWORTH
    Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2014/05/21/microsoft-gets-a-first-for-itrsquos-cloud-security.aspxAt http://blogs.technet.com/b/microsoft_blog/archive/2014/04/10/privacy-authorities-across-europe-approve-microsoft-s-cloud-commitments.aspx, the official Microsoft Blog by Brad Smith records that Microsoft now has approval by european data protection authorities that Microsoft’s Cloud Contracts meets EU data protection law.

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  • App Engine & Cloud SQL

    App Engine & Cloud SQL We'll quickly review Cloud SQL and chat with members of the Cloud SQL team about the newest features / tips & tricks. There will also be a Q&A session so please enter any questions you might have for the team in the moderator list for this session at www.google.com From: GoogleDevelopers Views: 1501 26 ratings Time: 36:26 More in Science & Technology

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  • Cloud Computing : publication du volet 3 du Syntec Numérique

    - by Eric Bezille
    Une vision client/fournisseur réunie autour d'une ébauche de cadre contractuel Lors de la Cloud Computing World Expo qui se tenait au CNIT la semaine dernière, j'ai assisté à la présentation du nouveau volet du Syntec numérique sur le Cloud Computing et les "nouveaux modèles" induits : modèles économiques, contrats, relations clients-fournisseurs, organisation de la DSI. L'originalité de ce livre blanc vis à vis de ceux déjà existants dans le domaine est de s'être attaché à regrouper l'ensemble des acteurs clients (au travers du CRIP) et fournisseurs, autour d'un cadre de formalisation contractuel, en s'appuyant sur le modèle e-SCM. Accélération du passage en fournisseur de Services et fin d'une IT en silos ? Si le Cloud Computing permet d'accélérer le passage de l'IT en fournisseur de services (dans la suite d'ITIL v3), il met également en exergue le challenge pour les DSI d'un modèle en rupture nécessitant des compétences transverses permettant de garantir les qualités attendues d'un service de Cloud Computing : déploiement en mode "self-service" à la demande, accès standardisé au travers du réseau,  gestion de groupes de ressources partagées,  service "élastique" : que l'on peut faire croitre ou diminuer rapidement en fonction de la demande mesurable On comprendra bien ici, que le Cloud Computing va bien au delà de la simple virtualisation de serveurs. Comme le décrit fort justement Constantin Gonzales dans son blog ("Three Enterprise Principles for Building Clouds"), l'important réside dans le respect du standard de l'interface d'accès au service. Ensuite, la façon dont il est réalisé (dans le nuage), est de la charge et de la responsabilité du fournisseur. A lui d'optimiser au mieux pour être compétitif, tout en garantissant les niveaux de services attendus. Pour le fournisseur de service, bien entendu, il faut maîtriser cette implémentation qui repose essentiellement sur l'intégration et l'automatisation des couches et composants nécessaires... dans la durée... avec la prise en charge des évolutions de chacun des éléments. Pour le client, il faut toujours s'assurer de la réversibilité de la solution au travers du respect des standards... Point également abordé dans le livre blanc du Syntec, qui rappelle les points d'attention et fait un état des lieux de l'avancement des standards autour du Cloud Computing. En vous souhaitant une bonne lecture...

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  • CNBC Exclusive: Mark Hurd On BT Win, Oracle Growth, And Investing In The Cloud

    - by Roxana Babiciu
    CNBC Europe recently interviewed Mark Hurd on Oracle's growth strategy and cloud investments, using our BT HCM Cloud win as a jumping-off point. When the CNBC panel misstated that cloud is “a new line for Oracle,” Mark responded, "Larry has been driving at this longer than anybody, and it shows in the products and the portfolio we have today." Case in point? Our BT win. Share this wide-ranging interview with partners today.

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  • Google I/O 2012 - Powering Your Application's Data using Google Cloud Storage

    Google I/O 2012 - Powering Your Application's Data using Google Cloud Storage Navneet Joneja, Nathan Herring Since opening its doors to all developers at Google I/O last year, the Google Cloud Storage team has shipped several features that let you use Google Cloud Storage for a variety of advanced use cases. This session will open with a quick introduction to the product, and quickly shift focus to implementing a variety of advanced applications using new features in Google Cloud Storage. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 48 1 ratings Time: 58:32 More in Science & Technology

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  • PASS 13 Dispatches: moving to the cloud

    - by Tony Davis
    PASS Summit 13, Day 1 keynote by Quentin Clarke and we're hearing about “redefiniing mission critical in the cloud”. With a move to the Windows Azure cloud comes the promise of capacity on demand, automatic HA, backups, patching and so on, as well as passing responsibility to MS for managing hardware, upgrades and so on. However, for many databases and applications the best route to the cloud is not necessarily obvious. For most, the path of least resistance is IaaS – SQL Server in a Azure VM. It removes the hardware burden but you still have to manage your databases and implementing HA for SQL Server is your responsibility. Also, scaling up comes at quite a cost – the biggest VM (8 CPU cores, 56 GB RAM, 16 1TB drives with 500 IOPS each) weighs in at over over $4500 per month. With PaaS, in the form of Windows SQL Database, you get a “3-copies replica set” so HA comes out-of the box, and removes the majority of the administration burden, but you are moving your database into a very different environment. For a start, it's a shared environment, with other customers using the same compute nodes in the cluster, and potentially even sharing the same database (multi-tenancy). Unless you pay for SQL DB Premium edition, the resources available for your workload will depends on how nicely others “play” in the shared environment. You'll potentially need to do a lot of tuning, and application rewriting to avoid throttling issues, optimising application-database communication to deal with increased latency between the two, and so on. You'll need aggressive application caching. You'll also need retry logic and to deal with (expected) node failure and the need to reconnect. In Tuesday's PASS Summit pre-con from the SQLCAT team, they spent a lot of time covering some of the telemetric techniques (collect into Azure storage the necessary monitoring data) to perform capacity planning, work out the hotspots and bottlenecks in your cloud applications. Tools like WAD (Windows Azure Diagnostics), performance counters SQL Database DMVs, and others, will be essential. Of course, to truly exploit the vast horizontal scaling that is available from the existence of thousands of compute nodes, you'll also need to need to consider how to “shard” your data so Azure can move it between nodes at will. Finding the right path to the Cloud isn't easy, but it's coming. I spoke to people one year ago who saw no real benefit in trying to move their infrastructure and databases to the cloud, but now at their company, it's the conversation that won't go away. Tony.  

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  • Oracle Exalogic Elactisc Cloud X2-2 est disponible, pour une meilleure expérience de développement dans le cloud

    Oracle Exalogic Elactisc Cloud X2-2 est disponible, pour une meilleure expérience de développement dans le cloud Mise à jour du 08.12.2010 par Katleen Oracle vient d'annoncer ce jour l'arrivée de son infrastructure cloud "Exalogic Elastic Cloud X2-2". Celle-ci servira de base de consolidation pour la quasi globalité des applications Java et non-Java, ainsi que pour les charges de travail. Ce système hardware et software mélange des processeurs x86 cutting-edge 64-bit, une fabrication I/O basée sur InfiniBand ; ainsi qu'un stockage solid-state sur Oracle WebLogic Server. Cette combinaison inédite permet une interaction entre divers composants d'une Java app et l'I/O zero-copy....

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