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  • Save the Date - Oracle Partner Community Forum: Exadata, Exalogic and Manageability, Vienna, 23-24 April 2013

    - by Javier Puerta
    Hardware and Software Engineered to Work Together .Ritu { font-family: Arial, Helvetica, sans-serif; } .Ritu { font-family: Arial, Helvetica, sans-serif; } .Ritu { font-family: Arial, Helvetica, sans-serif; } body,td,th { font-family: Arial, Helvetica, sans-serif; font-size: x-small; } .color { color: #F00; } .c { color: #F00; } .c { color: #F00; } .c { color: #000; font-size: xx-small; } .c a { color: #F00; } .c { color: #F00; } .cl { color: #F00; } .b { color: #000; font-size: xx-small; } .i { font-style: italic; } .i { font-style: italic; } .i { font-style: italic; } .i { font-style: italic; } .i { font-style: italic; } .c { color: #F00; font-size: small; } .b { font-weight: bold; font-size: x-small; } .c { color: #F00; font-size: x-small; } .clr { color: #F00; } .c { color: #F00; } inside the Click Here The order you must follow to make the colored link appear in browsers. If not the default window link will appear 1. Select the word you want to use for the link 2. Select the desired color, Red, Black, etc 3. Select bold if necessary ___________________________________________________________________________________________________________________ Templates use two sizes of fonts and the sans-serif font tag for the email. All Fonts should be (Arial, Helvetica, sans-serif) tags Normal size reading body fonts should be set to the size of 2. Small font sizes should be set to 1 !!!!!!!DO NOT USE ANY OTHER SIZE FONT FOR THE EMAILS!!!!!!!! ___________________________________________________________________________________________________________________ -- Oracle PartnerNetwork | Account | Feedback SAVE THE DATE ORACLE PARTNER COMMUNITY FORUM: EXADATA, EXALOGIC AND MANAGEABILITY 23-24 APRIL 2013, VIENNA, AUSTRIA The 2013 event expands its scope to cover all the building blocks of the Cloud infrastructure: Exadata, Exalogic and Manageability! Dear partner I am delighted to announce the 2013 edition of the Exadata, Exalogic and Manageability Partner Community Forum for EMEA partners which will take place in Vienna, Austria, on April 23-24, 2013. After the experience of last year where we ran a joint Exadata and Manageability event, we received requests from many of you to add also Exalogic to the scope of the forum, and this way to cover the complete infrastructure architecture on the Exa platform. The continued market adoption of Exadata and Exalogic is being paralleled by a growth in the rate of projects sold and implemented by partners. Sharing customer cases and best-practices presented by other partners constitutes the core of this event. If you want to present an experience of your company around Exadata, Exalogic or Manageability that can be a learning experience for other partners, we still have some slots in the agenda. (Please contact Javier Puerta if you want to present.) Attending the Community Forum you will also have the opportunity to get Oracle’s insight on new products and market trends. And, of course, interact with the Oracle executives responsible for the Exadata, Exalogic and Manageability business. The atmosphere of beautiful Vienna will be the scenario of the event. Detailed venue and hotel booking information will be sent to you in January. Don't miss out on attending this key event! Save the date now - 23 & 24 April 2013, and watch out for your formal invitation coming soon. Kind regards, Javier Puerta Core Technology Partner Programs, Oracle EMEA E-Mail: [email protected] Jürgen Kress SOA Partner Adoption Oracle EMEA E-Mail: [email protected] Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Contact PBC | Legal Notices and Terms of Use | Privacy Oracle Corporation - Worldwide Headquarters, 500 Oracle Parkway, OPL - E-mail Services, Redwood Shores, CA 94065, United States

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  • Save the Date - Oracle Partner Community Forum: Exadata, Exalogic and Manageability, Vienna, 23-24 April 2013

    - by Javier Puerta
    Hardware and Software Engineered to Work Together .Ritu { font-family: Arial, Helvetica, sans-serif; } .Ritu { font-family: Arial, Helvetica, sans-serif; } .Ritu { font-family: Arial, Helvetica, sans-serif; } body,td,th { font-family: Arial, Helvetica, sans-serif; font-size: x-small; } .color { color: #F00; } .c { color: #F00; } .c { color: #F00; } .c { color: #000; font-size: xx-small; } .c a { color: #F00; } .c { color: #F00; } .cl { color: #F00; } .b { color: #000; font-size: xx-small; } .i { font-style: italic; } .i { font-style: italic; } .i { font-style: italic; } .i { font-style: italic; } .i { font-style: italic; } .c { color: #F00; font-size: small; } .b { font-weight: bold; font-size: x-small; } .c { color: #F00; font-size: x-small; } .clr { color: #F00; } .c { color: #F00; } inside the Click Here The order you must follow to make the colored link appear in browsers. If not the default window link will appear 1. Select the word you want to use for the link 2. Select the desired color, Red, Black, etc 3. Select bold if necessary ___________________________________________________________________________________________________________________ Templates use two sizes of fonts and the sans-serif font tag for the email. All Fonts should be (Arial, Helvetica, sans-serif) tags Normal size reading body fonts should be set to the size of 2. Small font sizes should be set to 1 !!!!!!!DO NOT USE ANY OTHER SIZE FONT FOR THE EMAILS!!!!!!!! ___________________________________________________________________________________________________________________ -- Oracle PartnerNetwork | Account | Feedback SAVE THE DATE ORACLE PARTNER COMMUNITY FORUM: EXADATA, EXALOGIC AND MANAGEABILITY 23-24 APRIL 2013, VIENNA, AUSTRIA The 2013 event expands its scope to cover all the building blocks of the Cloud infrastructure: Exadata, Exalogic and Manageability! Dear partner I am delighted to announce the 2013 edition of the Exadata, Exalogic and Manageability Partner Community Forum for EMEA partners which will take place in Vienna, Austria, on April 23-24, 2013. After the experience of last year where we ran a joint Exadata and Manageability event, we received requests from many of you to add also Exalogic to the scope of the forum, and this way to cover the complete infrastructure architecture on the Exa platform. The continued market adoption of Exadata and Exalogic is being paralleled by a growth in the rate of projects sold and implemented by partners. Sharing customer cases and best-practices presented by other partners constitutes the core of this event. If you want to present an experience of your company around Exadata, Exalogic or Manageability that can be a learning experience for other partners, we still have some slots in the agenda. (Please contact Javier Puerta if you want to present.) Attending the Community Forum you will also have the opportunity to get Oracle’s insight on new products and market trends. And, of course, interact with the Oracle executives responsible for the Exadata, Exalogic and Manageability business. The atmosphere of beautiful Vienna will be the scenario of the event. Detailed venue and hotel booking information will be sent to you in January. Don't miss out on attending this key event! Save the date now - 23 & 24 April 2013, and watch out for your formal invitation coming soon. Kind regards, Javier Puerta Core Technology Partner Programs, Oracle EMEA E-Mail: [email protected] Jürgen Kress SOA Partner Adoption Oracle EMEA E-Mail: [email protected] Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Contact PBC | Legal Notices and Terms of Use | Privacy Oracle Corporation - Worldwide Headquarters, 500 Oracle Parkway, OPL - E-mail Services, Redwood Shores, CA 94065, United States

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  • Task Flow Design Paper Revised

    - by Duncan Mills
    Thanks to some discussion over at the ADF Methodology Group and contributions from Simon Lessard and Jan Vervecken I have been able to make some refinements to the Task Flow Design Fundamentals paper on OTN.As a bonus, whilst I was making some edits anyway I've included some of Frank Nimphius's memory scope diagrams which are a really useful tool for understanding how request, view, backingBean and pageFlow scopes all fit together.

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  • A View from the Top – Jan Ackerman (VP APAC Recruiting)

    - by user769227
    This week, Headhunt Magazine in Singapore, took the opportunity to publish an interview with Jan Ackerman who is Vice President for Recruitment for Asia Pacific here at Oracle. The link to the online interview can be found here. Below is the interview in full that was published in Headhunt Magazine.  A View from the Top – Jan Ackerman Written by HeadHunt on August 16, 2012 · Leave a Comment By Susheela Menon Jan Ackerman is the Vice President for Recruiting in Asia Pacific and Japan at Oracle. Which particular personal trait do you attribute your professional success to? Perseverance has been the most important trait that has attributed to my professional success. Endurance and perseverance combined to win in the end has always been a great credo. I find that this trait carries through in my professional as well as my personal life. I enjoy sport fishing and find that perseverance with a great deal of patience in this hobby is critical to the overall enjoyment and success in this sporting activity. In the same way, this doggedness – steadfastness with persistence – and tenacity toward an unyielding course of action has served me well in reaching goals and thus greater success. What’s the biggest challenge you have faced in your career so far? I have to constantly keep pace with ever changing technology in my career. The industry changes rapidly and requires me to stay on top of the latest trends and advancements. Outside of work, I like to develop software as a hobby and in order to ensure that what I am developing will meet what the business needs, I have to continually innovate and stay current on the latest trends in the industry to deliver a solution that will delight the end- user. Best career advice you have ever received. Always be forthright and honest with your customers and peers; mixed with a “Can Do” attitude, a great and fulfilling career can be yours to have and hold. What makes Oracle a great place to be in? The freedom to innovate and pave new avenues of success is one of the greatest things about working here at Oracle. We are always looking to grow and improve our business for our customers and we are always adapting to present and future industry demands. This means we are always looking to change, to perform better and to do things differently. All these create a culture and spirit of innovation and success. What motivates you to be in the HR sector? I really like working with and helping people. HR is all about “the people” in the organisation, and staying focused every day on making things better for the Oracle team gives me a great deal of happiness. Describe your leadership style. I am very direct and goal- oriented. I provide ideas and guidance and then give the team all the freedom they need to reach a successful outcome. I can also be a very “roll up your sleeves” kind of manager when the task needs a bit of a push. What’s the biggest business challenge you see in your industry right now? The ability to keep pace with all the convergence in the industry and to continue to stay focused on delivering top talent to serve Oracle’s customers well. Our unique Recruiting Model has served us well in meeting these needs. We are well-placed in this goal and look forward to maintain Oracle’s leadership role in the industry.

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  • 2 eventos, 2 países, 1 jornada.

    - by Noelia Gomez
    Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif";} El pasado Martes 23 de Octubre fue un día de gran actividad tanto en España como en Portugal. El Dialogo CxO , organizado por Econique, y en el que participó Oracle, tuvo lugar en Madrid en el Hotel Puerta de Ámerica. Este encuentro tenía como objetivo intercambiar opiniones sobre todos los aspectos relacionados con la gestión estratégica de clientes y el Contact Centre. En este marco, los asistentes tuvieron la oportunidad de realizar reuniones “one to one” con nuestros mejores expertos. Además Oracle presentó dos coloquios relacionados con la visión de las "Nuevas necesidades, estrategias y tendencias en la gestión del Marketing", de la mano de Gema Sebastian, Principal Sales Consultant de Oracle. En dichos coloquios los participantes de empresas, como Caprabo, Carrefour, Endesa, Jaguar Land Rover y Repsol (entre otros) trataron temas de máxima actualidad para los directivos de Marketing. Esta mesa redonda se centró sobre todo en el Marketing en redes sociales, compartiendo entre todos nuestra percepción de que es algo necesario pero que todavía el mercado no sabe muy bien cómo tratar. La escucha activa dentro de las redes y la posibilidad de reaccionar ante determinados factores se veía como un claro punto donde comenzar a trabajar de manera activa y donde Oracle puede ayudar. La experiencia de cliente fue otro de los puntos tratados en esta mesa, donde se dejó claro que ahora es el consumidor el que manda, el que quiere ver las cosas donde quiere y como quiere y que un mensaje de marketing ha de darse en el momento adecuado y aportando un valor real para que el consumidor lo acepte como algo interesante. Igualmente Oracle dispone de herramientas para hacer que esto sea posible. Por otro lado, en Lisboa, tenía lugar el Total Training 2012, una conferencia organizada por el Grupo IFE. En ella participaron más de 100 profesionales de los recursos humanos de las empresas más importantes de Portugal y tuvo como base de partida los conocimientos y experiencias, el intercambio de ideas y la discusión de oportunidades a las que actualmente se enfrentan los profesionales de este área. En este marco Oracle realizó una ponencia sobre “Los nuevos conceptos en RRHH”, de la mano de Julio Rodriguez, Principal Sales Consultant de Oracle, y que puso de manifiesto algunos conceptos tecnológicos relevantes para la gestión del talento que por su novedad, no eran muy conocidos por los profesionales de los RRHH cómo: · Saas (Software as a service) · BI (Business Intelligence) para RRHH · Social Networking y cómo integrarla dentro de la empresa · El mapa del talento, por fin fuera del Excel y en una aplicación · La movilidad en las aplicaciones de RRHH. Sin duda, esta fue una jornada cargada de intercambio de experiencias y de conocimientos para dos grandes áreas: los Recursos Humanos y la Gestión Estratégica del cliente. Si quieres saber más sobre la experiencia del cliente: Customer Concepts Magazine Customer Concepts Exchange in LinkedIn Customer Concepts Web TV Customer Experience @ Oracle.com Customer Experience Facebook Hub Customer Experience YouTube Channel Customer Experience Twitter Puede conocer más sobre HCM (Gestión de RRHH): Oracle Fusion Applications Oracle Fusion Human Capital Management Oracle PartnerNetwork Oracle Consulting Services Oracle Human Capital Management Blog Oracle HCM on Twitter Oracle HCM on Facebook

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  • ath9k driver does not weak up

    - by shantanu
    I know this is common question but i found no suitable answer, so i am asking this again. I installed ubuntu 11.10. I found the bug for ath9k, so set first network boot from BIOS menu. That's worked. I have upgraded to 12.04 yesterday. Now ath9k is creating problem again. First network boot is still enable. ath9k works at start. But failed(connect again and again) after couple of minutes. dmesg show error that it can not weak up in 500us. So i tried #compat-wireless-3.5.1-1. But result is same. I have also added #nohwcrypt=1 option in /etc/modeprob.d/ath9k.conf. Still no luck. I tried #rmmod and then modprobe sudo modprobe ath9k nohwcrypt=1 dmesg shows me error: [ 400.690086] ath9k: Driver unloaded [ 406.214329] ath9k 0000:06:00.0: enabling device (0000 -> 0002) [ 406.214348] ath9k 0000:06:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 406.214368] ath9k 0000:06:00.0: setting latency timer to 64 [ 406.428517] ath9k 0000:06:00.0: Failed to initialize device [ 406.428852] ath9k 0000:06:00.0: PCI INT A disabled [ 406.428887] ath9k: probe of 0000:06:00.0 failed with error -5 dmesg error when driver fail: 355.023521] ath: Chip reset failed [ 355.023524] ath: Unable to reset channel, reset status -22 [ 355.023556] ath: Unable to set channel [ 355.088569] ath: Failed to stop TX DMA, queues=0x10f! [ 355.122708] ath: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff [ 355.122714] ath: Could not stop RX, we could be confusing the DMA engine when we start RX up [ 355.263962] ath: Chip reset failed [ 355.263966] ath: Unable to reset channel (2437 MHz), reset status -22 [ 358.996063] ath: Failed to wakeup in 500us [ 364.004182] ath: Failed to wakeup in 500us I can not install fresh ubuntu because i have lots of application installed. System : Acer Aspire 4250 AMD dual core 1.6GHZ Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01) EDITED Now i am in serious problem. No wifi device is not showing in ifconfig or lshw commands. Only ether-net interface shows. I tried (FN + WIFI) several times to enable the device but nothing helps. Now I have installed fresh ubuntu 12.04. Please help lshw -c network: *-network description: Ethernet interface product: 82566DC Gigabit Network Connection vendor: Intel Corporation physical id: 19 bus info: pci@0000:00:19.0 logical name: eth0 version: 02 serial: 00:19:d1:7a:8e:f9 size: 100Mbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.0.0-k duplex=full firmware=1.1-0 ip=192.168.1.114 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:45 memory:90300000-9031ffff memory:90324000-90324fff ioport:20c0(size=32) rfkill command does not show anything but no error.

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  • Oracle’s New Release of Primavera Contract Management

    Controlling your construction project's plan, budget, forecast costs, and deliverables is vital to the success of your projects and the future of your business. Tune into this conversation with Krista Lambert, Senior Product Manager, for the Oracle Primavera Global Business Unit to learn about the latest release of Oracle’s Primavera Contract Management version 13 and how this document management, job cost and field controls solution keeps construction projects on schedule and on-budget through complete project control.

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  • Installing Forms and Reports on a development system

    - by Duncan Mills
    By popular demand I've resurrected / updated one of the old blog postings from Jan Carlin's Blog on GroundSide here. A recent (lengthy) post on the Forms forums chronicles the problems some of you have had installing F&R on a development machine. See the link in the headline of this post for the main one. When installing, here are some points to bear in mind: Download and install Weblogic Server first. http://www.oracle.com/technology/software/products/middleware/index.htmlFind the Forms and Reports (and Disco and Portal) zip files here. Download them to the desktop (or some other temporary directory of your choosing). Unzip both of the two zip files into the same new directory (maybe called 'stage') and check that you have 4 directories in the stage dir when you are finished unzipping: 'Disk1', 'Disk2', 'Disk3' and 'Disk4'. These folders are specified in the zip file structure and must be preserved for the setup executable to work. If you use WinZip and have a right click menu option that say "Extract to here", use that by right click-dragging the zip file onto the newly created directory. Don't use the "Extract to folder %HOME%\Desktop\ofm_pfrd...disk_1of2" option. That will get you into the trouble that was reported early in this thread. Free up as much memory as you can. Stop services and background processes and virus scanners and databases (you don't need a DB to install Forms) and other things lurking about on your machine. You can restart them when the install is done. Around 1.5 GB free real memory should do it. If it doesn't, free up more if you can. Don't change the swap space unless you know what you are doing. Let Windows handle it. A 1 GB machine will likely not be enough. You will likely need at least 2GB of RAM.Start the install with setup.exe from the 'Disk1' directoryChoose the Install and Configure option unless you have a good reason not to.Choose a unique instance name even if you deinstalled and removed the last install. I suggest using 'asinst_20090722_1' (today's date in ISO format with a running incremented number at the end if you install more than two times on a particular day).Unselect Portal and Discoverer and select the Builders you want.Unselect WebCacheUnselect OHS.Unselect the single sign-on option Check for any failures and choose the retry option if any occur. If that doesn't fix the problem, call Oracle Customer Support .

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  • SQLAuthority News – Learning Never Ends – Becoming Student Again

    - by pinaldave
    From my past few blog posts you may see a pattern – learning.  I finished my own college education a few years ago, but I firmly believe that learning should never stop.  We can learn on the job, or from outside reading, but we should always try to be learning new things.  It keeps the brain sharp!  In fact, I often find myself learning new things from reviewing old material.  If you have been reading my blog lately, you will recognize the name Koenig Solutions. You might also be rolling your eyes at me and my enthusiasm for learning and training.  College was hard work, why continue it?  Didn’t we all get educations so that we could get jobs and go on vacation? Of course, having a job means that you cannot take vacations all the time.  I have often asked my friend who owns Koenig, jokingly, when he is going to open a Koenig center in Bangalore. I relocated to Bangalore 1.5 years ago, so I wanted a center I could walk to anytime.  Last week I was very happy to hear that they have opened a center in Bangalore. Pinal Dave at Friend’s Company I could not let a new center open without visiting it and congratulating my friend, so I recently stopped by.  I was immediately taken by the desire to go back to “school” and learn something new.  I have signed up to take a continuing education course through the new Koenig center and here is the exciting part: I will be blogging about it so that you all can be inspired to learn, too!  Keep checking back here for further updates and blog posts about my learning experience. However, what is the fun to attend the session in the town where you stay. I indeed visited their center in Bangalore but I have opted to learn the course in another city. Well, more information about the same in near future. Pinal Dave is going to be a student again Honestly, why not learn new things and become more confident?  When we have more education we will become better at our jobs, which can lead to more confidence and efficiency, but may also have more physical rewards – like a raise or promotion.  We don’t always have to focus on shallow rewards like money and recognition, so think about how much more you will enjoy your work when you know more about it.  Koenig is offering training for new certificates in SQL Server 2012, and I am planning on investigating these for sure. I feel good that I am going to be a student again and will be learning new stuff. As I said I will blog my experience as I go. I hope that my continuing education blog posts will inspire you, my readers, to go out and learn more.  I am serious about my education and my goal is to prove how serious I am here, on my blog. I am a big fan of Learning and Sharing and I hope this series will inspire you to learn new technology which can help you progress in your career and help balance your life with work. Note: This blog post is about what inspired me to sign up for learning course. Becoming student should be the attitude of a lifetime. This post is not about a career change. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • Android in-game pause screen

    - by Max
    Right now Im calling a new activity with an xml-view when I pause my game, but Since I do this I need to use context in my real-time code, and this is causing a memory leak. Is there any preffered way to pause the game? By pause I mean if game is over, if I die, or if I press pause-button. Would a custom dialog work just aswell? this would mean I wont have to leave my main-activity while im in-game.

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  • Using Node.js as an accelerator for WCF REST services

    - by Elton Stoneman
    Node.js is a server-side JavaScript platform "for easily building fast, scalable network applications". It's built on Google's V8 JavaScript engine and uses an (almost) entirely async event-driven processing model, running in a single thread. If you're new to Node and your reaction is "why would I want to run JavaScript on the server side?", this is the headline answer: in 150 lines of JavaScript you can build a Node.js app which works as an accelerator for WCF REST services*. It can double your messages-per-second throughput, halve your CPU workload and use one-fifth of the memory footprint, compared to the WCF services direct.   Well, it can if: 1) your WCF services are first-class HTTP citizens, honouring client cache ETag headers in request and response; 2) your services do a reasonable amount of work to build a response; 3) your data is read more often than it's written. In one of my projects I have a set of REST services in WCF which deal with data that only gets updated weekly, but which can be read hundreds of times an hour. The services issue ETags and will return a 304 if the client sends a request with the current ETag, which means in the most common scenario the client uses its local cached copy. But when the weekly update happens, then all the client caches are invalidated and they all need the same new data. Then the service will get hundreds of requests with old ETags, and they go through the full service stack to build the same response for each, taking up threads and processing time. Part of that processing means going off to a database on a separate cloud, which introduces more latency and downtime potential.   We can use ASP.NET output caching with WCF to solve the repeated processing problem, but the server will still be thread-bound on incoming requests, and to get the current ETags reliably needs a database call per request. The accelerator solves that by running as a proxy - all client calls come into the proxy, and the proxy routes calls to the underlying REST service. We could use Node as a straight passthrough proxy and expect some benefit, as the server would be less thread-bound, but we would still have one WCF and one database call per proxy call. But add some smart caching logic to the proxy, and share ETags between Node and WCF (so the proxy doesn't even need to call the servcie to get the current ETag), and the underlying service will only be invoked when data has changed, and then only once - all subsequent client requests will be served from the proxy cache.   I've built this as a sample up on GitHub: NodeWcfAccelerator on sixeyed.codegallery. Here's how the architecture looks:     The code is very simple. The Node proxy runs on port 8010 and all client requests target the proxy. If the client request has an ETag header then the proxy looks up the ETag in the tag cache to see if it is current - the sample uses memcached to share ETags between .NET and Node. If the ETag from the client matches the current server tag, the proxy sends a 304 response with an empty body to the client, telling it to use its own cached version of the data. If the ETag from the client is stale, the proxy looks for a local cached version of the response, checking for a file named after the current ETag. If that file exists, its contents are returned to the client as the body in a 200 response, which includes the current ETag in the header. If the proxy does not have a local cached file for the service response, it calls the service, and writes the WCF response to the local cache file, and to the body of a 200 response for the client. So the WCF service is only troubled if both client and proxy have stale (or no) caches.   The only (vaguely) clever bit in the sample is using the ETag cache, so the proxy can serve cached requests without any communication with the underlying service, which it does completely generically, so the proxy has no notion of what it is serving or what the services it proxies are doing. The relative path from the URL is used as the lookup key, so there's no shared key-generation logic between .NET and Node, and when WCF stores a tag it also stores the "read" URL against the ETag so it can be used for a reverse lookup, e.g:   Key Value /WcfSampleService/PersonService.svc/rest/fetch/3 "28cd4796-76b8-451b-adfd-75cb50a50fa6" "28cd4796-76b8-451b-adfd-75cb50a50fa6" /WcfSampleService/PersonService.svc/rest/fetch/3    In Node we read the cache using the incoming URL path as the key and we know that "28cd4796-76b8-451b-adfd-75cb50a50fa6" is the current ETag; we look for a local cached response in /caches/28cd4796-76b8-451b-adfd-75cb50a50fa6.body (and the corresponding .header file which contains the original service response headers, so the proxy response is exactly the same as the underlying service). When the data is updated, we need to invalidate the ETag cache – which is why we need the reverse lookup in the cache. In the WCF update service, we don't need to know the URL of the related read service - we fetch the entity from the database, do a reverse lookup on the tag cache using the old ETag to get the read URL, update the new ETag against the URL, store the new reverse lookup and delete the old one.   Running Apache Bench against the two endpoints gives the headline performance comparison. Making 1000 requests with concurrency of 100, and not sending any ETag headers in the requests, with the Node proxy I get 102 requests handled per second, average response time of 975 milliseconds with 90% of responses served within 850 milliseconds; going direct to WCF with the same parameters, I get 53 requests handled per second, mean response time of 1853 milliseconds, with 90% of response served within 3260 milliseconds. Informally monitoring server usage during the tests, Node maxed at 20% CPU and 20Mb memory; IIS maxed at 60% CPU and 100Mb memory.   Note that the sample WCF service does a database read and sleeps for 250 milliseconds to simulate a moderate processing load, so this is *not* a baseline Node-vs-WCF comparison, but for similar scenarios where the  service call is expensive but applicable to numerous clients for a long timespan, the performance boost from the accelerator is considerable.     * - actually, the accelerator will work nicely for any HTTP request, where the URL (path + querystring) uniquely identifies a resource. In the sample, there is an assumption that the ETag is a GUID wrapped in double-quotes (e.g. "28cd4796-76b8-451b-adfd-75cb50a50fa6") – which is the default for WCF services. I use that assumption to name the cache files uniquely, but it is a trivial change to adapt to other ETag formats.

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  • System Variables, Stored Procedures or Functions for Meta Data

    - by BuckWoody
    Whenever you want to know something about SQL Server’s configuration, whether that’s the Instance itself or a database, you have a few options. If you want to know “dynamic” data, such as how much memory or CPU is consumed or what a particular query is doing, you should be using the Dynamic Management Views (DMVs) that you can read about here: http://msdn.microsoft.com/en-us/library/ms188754.aspx  But if you’re looking for how much memory is installed on the server, the version of the Instance, the drive letters of the backups and so on, you have other choices. The first of these are system variables. You access these with a SELECT statement, and they are useful when you need a discrete value for use, say in another query or to put into a table. You can read more about those here: http://msdn.microsoft.com/en-us/library/ms173823.aspx You also have a few stored procedures you can use. These often bring back a lot more data, pre-formatted for the screen. You access these with the EXECUTE syntax. It is a bit more difficult to take the data they return and get a single value or place the results in another table, but it is possible. You can read more about those here: http://msdn.microsoft.com/en-us/library/ms187961.aspx Yet another option is to use a system function, which you access with a SELECT statement, which also brings back a discrete value that you can use in a test or to place in another table. You can read about those here: http://msdn.microsoft.com/en-us/library/ms187812.aspx  By the way, many of these constructs simply query from tables in the master or msdb databases for the Instance or the system tables in a user database. You can get much of the information there as well, and there are even system views in each database to show you the meta-data dealing with structure – more on that here: http://msdn.microsoft.com/en-us/library/ms186778.aspx  Some of these choices are the only way to get at a certain piece of data. But others overlap – you can use one or the other, they both come back with the same data. So, like many Microsoft products, you have multiple ways to do the same thing. And that’s OK – just research what each is used for and how it’s intended to be used, and you’ll be able to select (pun intended) the right choice. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • General input/output error on OpenOffice 3.2

    - by Scott
    I have been working on a research paper in OpenOffice 3.2 Word Processor and I had a slide show OpenOffice 3.2 Presentation. I saved both frequently and they were not very big (no more then 5 pages of text or a few slides). A few days after I last edited and saved them, I tried to open the slide show but I received window saying: General Error. General input/output error When I tried opening the paper, it asked for ASCII Filter Options (font, character, language, and paragraph break). When I set the normal settings, a single blank document opened with nothing on it. I looked at both of the file's properties and the size was 0 or 1.5 KB, and the volume was unknown. I recently installed some updates for Ubuntu 10.10 and everything else in my computer is working normally including other documents and slide shows. Is this a fixable crash?

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  • All about the Fusion Middleware Best Practice Centers for Applications

    Nishit Rao, Group Product Manager and Markus Zirn, Senior Director, Oracle Fusion Middleware discuss Oracle's Fusion Middlware Best Practice Centers for E-Business Suite, Peoplesoft and Siebel, and how Application Developers can use the how-to guides, blogs and webcasts to learn FMW components and create SOA solutions with their favorite applications.

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  • What should you do differently when designing websites for an embedded web server

    - by Roger Attrill
    When designing a website to be accessed from an embedded webserver such as KLone, what do you need to do differently compared to a 'standard' web server. I'm talking about considerations at the front end design stage, before the actual building and coding up. For example, typically in such situations, memory size is a premium, so I guess larger images are out, and maybe more attention should be focused on achieving a good look and feel using CSS/Javascript rather than bitmap images.

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  • Geez &ndash; do you even do basic testing?

    - by Shawn Cicoria
    You’d think that a “real” commercial software vendor would at least run a barrage of tests validating updates – ANY updates – before pushing out those updates. Well, McAfee has done it again.  This one, well it just shuts you down…  False positives on a core Windows file. https://kc.mcafee.com/corporate/index?page=content&id=KB68780 http://support.microsoft.com/kb/2025695 Usually, if I get a PC with McAfee offered for “free” usually, I either wipe or uninstall.  That product is the work of the devil.  I can’t understand how these guys are still in business.

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  • How to connect nokia lumis 520 to ubuntu 12.04

    - by pavankumar
    i have done following steps sudo add-apt-repository ppa:langdalepl/gvfs-mtp sudo apt-get update and updated some upgrades from update manager after doing above steps i am able to see lumia phone name in file system.But when i try to mount device i am getting following errors Unable to mount RM-914|Nokia Lumia 520 Unable to open MTP device '[usb:001,010]' is there any way to solve these problem?

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  • Speeding up procedural texture generation

    - by FalconNL
    Recently I've begun working on a game that takes place in a procedurally generated solar system. After a bit of a learning curve (having neither worked with Scala, OpenGL 2 ES or Libgdx before), I have a basic tech demo going where you spin around a single procedurally textured planet: The problem I'm running into is the performance of the texture generation. A quick overview of what I'm doing: a planet is a cube that has been deformed to a sphere. To each side, a n x n (e.g. 256 x 256) texture is applied, which are bundled in one 8n x n texture that is sent to the fragment shader. The last two spaces are not used, they're only there to make sure the width is a power of 2. The texture is currently generated on the CPU, using the updated 2012 version of the simplex noise algorithm linked to in the paper 'Simplex noise demystified'. The scene I'm using to test the algorithm contains two spheres: the planet and the background. Both use a greyscale texture consisting of six octaves of 3D simplex noise, so for example if we choose 128x128 as the texture size there are 128 x 128 x 6 x 2 x 6 = about 1.2 million calls to the noise function. The closest you will get to the planet is about what's shown in the screenshot and since the game's target resolution is 1280x720 that means I'd prefer to use 512x512 textures. Combine that with the fact the actual textures will of course be more complicated than basic noise (There will be a day and night texture, blended in the fragment shader based on sunlight, and a specular mask. I need noise for continents, terrain color variation, clouds, city lights, etc.) and we're looking at something like 512 x 512 x 6 x 3 x 15 = 70 million noise calls for the planet alone. In the final game, there will be activities when traveling between planets, so a wait of 5 or 10 seconds, possibly 20, would be acceptable since I can calculate the texture in the background while traveling, though obviously the faster the better. Getting back to our test scene, performance on my PC isn't too terrible, though still too slow considering the final result is going to be about 60 times worse: 128x128 : 0.1s 256x256 : 0.4s 512x512 : 1.7s This is after I moved all performance-critical code to Java, since trying to do so in Scala was a lot worse. Running this on my phone (a Samsung Galaxy S3), however, produces a more problematic result: 128x128 : 2s 256x256 : 7s 512x512 : 29s Already far too long, and that's not even factoring in the fact that it'll be minutes instead of seconds in the final version. Clearly something needs to be done. Personally, I see a few potential avenues, though I'm not particularly keen on any of them yet: Don't precalculate the textures, but let the fragment shader calculate everything. Probably not feasible, because at one point I had the background as a fullscreen quad with a pixel shader and I got about 1 fps on my phone. Use the GPU to render the texture once, store it and use the stored texture from then on. Upside: might be faster than doing it on the CPU since the GPU is supposed to be faster at floating point calculations. Downside: effects that cannot (easily) be expressed as functions of simplex noise (e.g. gas planet vortices, moon craters, etc.) are a lot more difficult to code in GLSL than in Scala/Java. Calculate a large amount of noise textures and ship them with the application. I'd like to avoid this if at all possible. Lower the resolution. Buys me a 4x performance gain, which isn't really enough plus I lose a lot of quality. Find a faster noise algorithm. If anyone has one I'm all ears, but simplex is already supposed to be faster than perlin. Adopt a pixel art style, allowing for lower resolution textures and fewer noise octaves. While I originally envisioned the game in this style, I've come to prefer the realistic approach. I'm doing something wrong and the performance should already be one or two orders of magnitude better. If this is the case, please let me know. If anyone has any suggestions, tips, workarounds, or other comments regarding this problem I'd love to hear them.

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  • How do I can install libxcb-render-unil0?

    - by Nazar Kovalenko
    I need libxcb-render-unil0 for running DraftSight™ 32x ver under my 64x os. I was trying to install it by a terminal or Synaptic Package Manager but it I didn't succeed in this. root@nazar-Aspire-5720Z:/home/nazar# sudo apt-get install libxcb-render-unil0 Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package libxcb-render-unil0 I just can't understand what's wrong. Thank u.

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  • PASS Summit 2011 &ndash; Part IV

    - by Tara Kizer
    This is the final blog for my PASS Summit 2011 series.  Well okay, a mini-series, I guess. On the last day of the conference, I attended Keith Elmore’ and Boris Baryshnikov’s (both from Microsoft) “Introducing the Microsoft SQL Server Code Named “Denali” Performance Dashboard Reports, Jeremiah Peschka’s (blog|twitter) “Rewrite your T-SQL for Great Good!”, and Kimberly Tripp’s (blog|twitter) “Isolated Disasters in VLDBs”. Keith and Boris talked about the lifecycle of a session, figuring out the running time and the waiting time.  They pointed out the transient nature of the reports.  You could be drilling into it to uncover a problem, but the session may have ended by the time you’ve drilled all of the way down.  Also, the reports are for troubleshooting live problems and not historical ones.  You can use Management Data Warehouse for historical troubleshooting.  The reports provide similar benefits to the Activity Monitor, however Activity Monitor doesn’t provide context sensitive drill through. One thing I learned in Keith’s and Boris’ session was that the buffer cache hit ratio should really never be below 87% due to the read-ahead mechanism in SQL Server.  When a page is read, it will read the entire extent.  So for every page read, you get 7 more read.  If you need any of those 7 extra pages, well they are already in cache.  I had a lot of fun in Jeremiah’s session about refactoring code plus I learned a lot.  His slides were visually presented in a fun way, which just made for a more upbeat presentation.  Jeremiah says that before you start refactoring, you should look at your system.  Investigate missing or too many indexes, out-of-date statistics, and other areas that could be leading to your code running slow.  He talked about code standards.  He suggested using common abbreviations for aliases instead of one-letter aliases.  I’m a big offender of one-letter aliases, but he makes a good point.  He said that join order does not matter to the optimizer, but it does matter to those who have to read your code.  Now let’s get into refactoring! Eliminate useless things – useless/unneeded joins and columns.  If you don’t need it, get rid of it! Instead of using DISTINCT/JOIN, replace with EXISTS Simplify your conditions; use UNION or better yet UNION ALL instead of OR to avoid a scan and use indexes for each union query Branching logic – instead of IF this, IF that, and on and on…use dynamic SQL (sp_executesql, please!) or use a parameterized query in the application Correlated subqueries – YUCK! Replace with a join Eliminate repeated patterns Last, but certainly not least, was Kimberly’s session.  Kimberly is my favorite speaker.  I attended her two-day pre-conference seminar at PASS Summit 2005 as well as a SQL Immersion Event last December.  Did I mention she’s my favorite speaker?  Okay, enough of that. Kimberly’s session was packed with demos.  I had seen some of it in the SQL Immersion Event, but it was very nice to get a refresher on these, especially since I’ve got a VLDB with some growing pains.  One key takeaway from her session is the idea to use a log shipping solution with a load delay, such as 6, 8, or 24 hours behind the primary.  In the case of say an accidentally dropped table in a VLDB, we could retrieve it from the secondary database rather than waiting an eternity for a restore to complete.  Kimberly let us know that in SQL Server 2012 (it finally has a name!), online rebuilds are supported even if there are LOB columns in your table.  This will simplify custom code that intelligently figures out if an online rebuild is possible. There was actually one last time slot for sessions that day, but I had an airplane to catch and my kids to see!

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  • Share wireless Internet connection between Ubuntu 10.04 to Windows Vista through ethernet

    - by Artyom2033
    I am connected to the internet using a wireless connection on my laptop running ubuntu 10.04 and I want to share it to a desktop running windows Vista trough a Ethernet cable. How do I do that? I've try the "GUI Method via Network Manager (Ubuntu 9.10 and up)" on this page : https://help.ubuntu.com/community/Internet/ConnectionSharing but how to I access to it from Windows Vista? I didn't even know if it is shared. Thanks for the help

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  • Database Mirroring on SQL Server Express Edition

    - by Most Valuable Yak (Rob Volk)
    Like most SQL Server users I'm rather frustrated by Microsoft's insistence on making the really cool features only available in Enterprise Edition.  And it really doesn't help that they changed the licensing for SQL 2012 to be core-based, so now it's like 4 times as expensive!  It almost makes you want to go with Oracle.  That, and a desire to have Larry Ellison do things to your orifices. And since they've introduced Availability Groups, and marked database mirroring as deprecated, you'd think they'd make make mirroring available in all editions.  Alas…they don't…officially anyway.  Thanks to my constant poking around in places I'm not "supposed" to, I've discovered the low-level code that implements database mirroring, and found that it's available in all editions! It turns out that the query processor in all SQL Server editions prepends a simple check before every edition-specific DDL statement: IF CAST(SERVERPROPERTY('Edition') as nvarchar(max)) NOT LIKE '%e%e%e% Edition%' print 'Lame' else print 'Cool' If that statement returns true, it fails. (the print statements are just placeholders)  Go ahead and test it on Standard, Workgroup, and Express editions compared to an Enterprise or Developer edition instance (which support everything). Once again thanks to Argenis Fernandez (b | t) and his awesome sessions on using Sysinternals, I was able to watch the exact process SQL Server performs when setting up a mirror.  Surprisingly, it's not actually implemented in SQL Server!  Some of it is, but that's something of a smokescreen, the real meat of it is simple filesystem primitives. The NTFS filesystem supports links, both hard links and symbolic, so that you can create two entries for the same file in different directories and/or different names.  You can create them using the MKLINK command in a command prompt: mklink /D D:\SkyDrive\Data D:\Data mklink /D D:\SkyDrive\Log D:\Log This creates a symbolic link from my data and log folders to my Skydrive folder.  Any file saved in either location will instantly appear in the other.  And since my Skydrive will be automatically synchronized with the cloud, any changes I make will be copied instantly (depending on my internet bandwidth of course). So what does this have to do with database mirroring?  Well, it seems that the mirroring endpoint that you have to create between mirror and principal servers is really nothing more than a Skydrive link.  Although it doesn't actually use Skydrive, it performs the same function.  So in effect, the following statement: ALTER DATABASE Mir SET PARTNER='TCP://MyOtherServer.domain.com:5022' Is turned into: mklink /D "D:\Data" "\\MyOtherServer.domain.com\5022$" The 5022$ "port" is actually a hidden system directory on the principal and mirror servers. I haven't quite figured out how the log files are included in this, or why you have to SET PARTNER on both principal and mirror servers, except maybe that mklink has to do something special when linking across servers.  I couldn't get the above statement to work correctly, but found that doing mklink to a local Skydrive folder gave me similar functionality. To wrap this up, all you have to do is the following: Install Skydrive on both SQL Servers (principal and mirror) and set the local Skydrive folder (D:\SkyDrive in these examples) On the principal server, run mklink /D on the data and log folders to point to SkyDrive: mklink /D D:\SkyDrive\Data D:\Data On the mirror server, run the complementary linking: mklink /D D:\Data D:\SkyDrive\Data Create your database and make sure the files map to the principal data and log folders (D:\Data and D:\Log) Viola! Your databases are kept in sync on multiple servers! One wrinkle you will encounter is that the mirror server will show the data and log files, but you won't be able to attach them to the mirror SQL instance while they are attached to the principal. I think this is a bug in the Skydrive, but as it turns out that's fine: you can't access a mirror while it's hosted on the principal either.  So you don't quite get automatic failover, but you can attach the files to the mirror if the principal goes offline.  It's also not exactly synchronous, but it's better than nothing, and easier than either replication or log shipping with a lot less latency. I will end this with the obvious "not supported by Microsoft" and "Don't do this in production without an updated resume" spiel that you should by now assume with every one of my blog posts, especially considering the date.

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