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• ArchBeat Link-o-Rama for 2012-06-14

  - by Bob Rhubart

  Duke's Choice Award Nominations Close Friday! | The Java Source The Duke's Choice Awards celebrate extreme innovation in the world of Java technology. Nominate an individual, a group or company who show the best in Java innovation. Nominate at Java.net/dukeschoice. Nominations are open until this Friday, June 15. Whole Lotta Virtualization Goin' On | Rick Ramsey The OTN Garage's Rick Ramsey shares a list of recent Virtualization articles available on OTN, along with a link to a video by The Killer, Mr Jerry Lee Lewis. A Pragmatic Path to Navigating your Infrastructure to the Cloud | The WebLogic Server Blog Ruma Sanyal offers an overview of a recent Oracle webcast featuring Gartner VP and Distinguished Analyst Andy Butler and Vice President and Gartner Fellow Massimo Pezzini. Migrating C/C++ embedded SQL code | Tom Laszewski Cloud migration expert Tom Laszewski explains the how-to in 5 easy steps. Aetna Dumps Its Siloed Enterprise Architecture for SOA | CIO.com CIO writer Stephanie Overby tells the story of how one major health insurance provider put the "Enterprise" back in Enterprise Architecture. (H/T to Joe McKendrick for this story.) Downloading specific video renditions in WebCenter Content | Kyle Hatlestad How-to from Oracle WebCenter & ADF A-Team blogger Kyle Hatlestad. Eclipse DemoCamp - June 2012 - Redwood Shores, CA Location: Oracle HQ - 10 Twin Dolphin Drive, Redwood Shores, CA (Map) Date and Time: Wednesday, June 13, 2012. From 6pm - 9pm Agenda: The evolution of Java persistence, Doug Clarke, EclipseLink Project Lead, Oracle Integrating BIRT into Applications, Ashwini Verma, Actuate Corporation Leveraging OSGi In The Enterprise, Kamal Muralidharan, Lead Engineer, eBay Developing Rich ADF Applications with Java EE, Greg Stachnick, Oracle NVIDIA® NsightTM Eclipse Edition, Goodwin (Tech lead - Visual tools), Eugene Ostroukhov (Senior engineer – Visual tools) 2012 Oracle Fusion Middleware Innovation Awards - Win a FREE Pass to Oracle OpenWorld 2012 in San Francisco Share your use of Oracle Fusion Middleware solutions and how they help your organization drive business innovation. You just might win a free pass to Oracle Openworld 2012 in San Francisco. Deadline for submissions in July 17, 2012. BI Architecture Master Class for Partners – Oracle Architecture Unplugged Date: June 21, 2012 No slides, no fluff. This workshop will be highly interactive and is aimed at Oracle OPN member partners who are IT Architects and BI+W specialists. The focus will be on architectural issues and considerations. DevOps: Evolving to Handle Disruption | JP Morgenthal The subject of DevOps came up this week during an OTN ArchBeat podcast interview with Ron Batra and James Baty on the role of the cloud architect (that program will be available in a few weeks). Morgenthal's article for InfoQ offers a good overview of what DevOps is and how it works. Thought for the Day "Elegance is not a dispensable luxury but a factor that decides between success and failure." — Edsger Dijkstra Source: softwarequotes.com

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• Archbeat Link-O-Rama Top 10 Facebook Faves for October 20-26, 2013

  - by OTN ArchBeat

  What are the 4,460 fans of the OTN ArchBeat Facebook Page talking about? The list below represents the Top 10 most popular articles, blog posts, and other content from across the community. Enterprise Grade Deployment Considerations for Oracle Identity Manager AD Connector | Firdaus Fraz Oracle Fusion Middleware solution architect Firdaus Fraz illustrates provides best practice recommendations for setting up an enterprise deployment environment for the OIM connector for Microsoft Active Directory. A Roadmap for SOA Development and Delivery | Mark Nelson Do you know the way to S-O-A? Mark Nelson does. His latest blog post, part of an ongoing series, will help to keep you from getting lost along the way. The road ahead for WebLogic 12c | Edwin Biemond Oracle ACE Edwin Biemond shares his thoughts on announced new features in Oracle WebLogic 12.1.3 & 12.1.4 and compares those upcoming releases to Oracle WebLogic 12.1.2. Oracle GoldenGate 12c - New Release, New Features | Michael Rainey Rittman Mead's Michael Rainey takes you on guided tour through the GoldenGate 12c features that "are relevant to data warehouse and data migration work we typically see in the business intelligence world." Reproducing WebLogic Stuck Threads with ADF CreateInsert Operation and ORDER BY Clause | Andrejus Baranovsikis Another post from Oracle ACE Director Andrejus Baranovsikis on dealing with WebLogic Stuck Threads. This one includes a test case application you can download. The Impact of SaaS - The Times They Are A-Changin' | Floyd Teter Oracle ACE Director Floyd Teter shares some truly interesting insight gained in conversations with three Fortune 500 CIOs. Configure Oracle Identity Manager AD/LDAP Authentication | Arda Eralp A step-by-step how-to from a member of the Fusion Middleware Applications Consultancy team. Java-Powered Robot Named NAO Wows Crowds | Tori Wieldt Tori Wieldt interviews a robot and human. Updated ODI Statement of Direction | Robert Schweighardt Heads up Oracle Data Integrator fans! A new product statement of direction document is available, offering "an overview of the strategic product plans for Oracle’s data integration products for bulk data movement and transformation, specifically Oracle Data Integrator (ODI) and Oracle Warehouse Builder (OWB)." Oracle BI Apps 11.1.1.7.1 – GoldenGate Integration - Part 2: Setup and Configuration | Michael Rainey Michael Rainey continues his series with another technical article for you GoldenGate fans. Thought for the Day "Intuition will tell the thinking mind where to look next." — Jonas Salk, American medical researcher and virologist (October 28, 1914 – June 23, 1995) Source: brainyquote.com

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• Oracle GoldenGate: Knowledge Document Series Post #1

  - by Doug Reid

  0 false 18 pt 18 pt 0 0 false false false /* 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-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;} Over the course of the next several weeks, the Oracle GoldenGate team will be posting highlights from the knowledge base on My Oracle Support. The intent is to bring greater awareness to our user community of some fantastic best practices documents that are available to anyone with a valid CSI.   These documents were originally created for our internal teams, but the content was so good and useful that we have made them available externally for our user community.  The first in our series is the Oracle GoldenGate database Schema Profile check script (Doc ID 1296168.1). “This script is intended to query the database by schema to identify current configuration and identify any unsupported data types or types that may need special considerations for Oracle GoldenGate in an Oracle environment. This is the Oracle database profile script.  Added check for deferred constraints. Deferred constraints may cause ADD TRANDATA to select the wrong column for logging. Use KEYCOLS for tables with deferred constraints.” Click here to view the document  Check back weekly for additional new postings.

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• Move Data into the grid for scalable, predictable response times

  - by JuergenKress

  CloudTran is pleased to introduce the availability of the CloudTran Transaction and Persistence Manager for creating scalable, reliable data services on the Oracle Coherence In-Memory Data Grid (IMDG). Use of IMDG architectures has been key to handling today’s web-scale loads because it eliminates database latency by storing important and frequently access data in memory instead of on disk. The CloudTran product lets developers easily use an IMDG for full ACID-compliant transactions without having to be concerned about the location or spread of data. The system has its own implementation of fast, scalable distributed transactions that does NOT depend on XA protocols but still guarantees all ACID properties. Plus, CloudTran asynchronously replicates data going into the IMDG to back-end datastores and back-up data centers, again ensuring ACID properties. CloudTran can be accessed through Java Persistence API (JPA via TopLink Grid) and now, through a new Low-Level API, or LLAPI. This is ideal for use in SOA applications that need data reliability, high availability, performance, and scalability. It is still in its limited beta release, the LLAPI gives developers the ability to use standard put/remove logic available in Coherence and then wrap logic with simple Spring annotations or XML+AspectJ to start transactions. An important feature of LLAPI is the ability to join transactions. This is a common outcome for SOA applications that need to reduce network traffic by aggregating data into single cache entries and then doing SOA service processing in the node holding the data. This results in the need to orchestrate transaction processing across multiple service calls. CloudTran has the capability to handle these “multi-client” transactions at speed with no loss in ACID properties. Developing software around an IMDG like Oracle Coherence is an important choice for today’s web-scale applications and services. But this introduces new architectural considerations to maintain scalability in light of increased network loads and data movement. Without using CloudTran, developers are faced with an incredibly difficult task to ensure data reliability, availability, performance, and scalability when working with an IMDG. Working with highly distributed data that is entirely volatile while stored in memory presents numerous edge cases where failures can result in data loss. The CloudTran product takes care of all of this, leaving developers with the confidence and peace of mind that all data is processed correctly. For those interested in evaluating the CloudTran product and IMDGs, take a look at this link for more information: http://www.CloudTran.com/downloadAPI.ph , or send your questions to [email protected]. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: CloudTran,data grid,M,SOA Community,Oracle SOA,Oracle BPM,BPM,Community,OPN,Jürgen Kress

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• Five Best Practices for Going Mobile

  - by kellsey.ruppel

  76% of IT decision makers indicate mobile trends will have a high to extremely high impact on their organization. Has your organization gone mobile? Looking for some ideas on how to get started? John Brunswick shares his Best Practices for Going Mobile. Mobile technology has gone from nice-to-have to a cornerstone of user engagement. Mobile access enables social networking, decision support, purchasing, content consumption, and location-based searching, extending experiences beyond what is available in traditional desktop computing.  Organizations rushing to ensure their brand's mobile availability may have taken a tactical approach to implementation, but strategically approaching mobile can enable greater returns on a similar investment and subsequent mobile projects. Here are some strategic considerations for delivering products, services, and information to mobile constituents.  Who, Why, and What? Ask yourself these key questions: who are you attempting to engage through the channel, and why are they engaging you through this channel? What experience will satisfy their needs? What outcome will support your core business? Will you be informing and/or transacting with this person?  Mobile Behavior. Mobile users generally engage for a very specific purpose. Ensure that access to information, services, and products is streamlined. Arriving on a mobile site through search only to be asked to search again frustrates users.  Mobile Is Broad. After establishing the audience and goal, review technology requirements to support them. Do you need a mobile Website, native mobile application, or both? Do you need to support multiple devices? Know the difference between native mobile and mobile Web.  Social Strategy. Users are more likely to trust reviews from peers than marketing information from a vendor. If you are selling products or services, be sure to make social integration part of your strategy.  Content Management. Consider a shared content platform strategy for Web and mobile projects. Fresh, consistent content is important for high-quality experiences. Read more from John Brunswick.We'll also be talking mobile strategies and how you can transform your portal experience and optimize online engagement -- making your portals more interactive and more engaging across multiple channels in a webcast tomorrow. We hope you'll join us!

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• What should filenames and URLs of images contain for SEO benefit?

  - by Baumr

  We know that good site architecture usually looks like this: example-company.com/ example-company.com/about/ example-company.com/contact/ example-company.com/products/ example-company.com/products/category/ example-company.com/products/category/productname/ Now, when it comes to Google Image search, it is clear that the img alt tag, filename/URL, and surrounding text (captions, headings, paragraphs) have an effect on ranking. I want to ask about the filename of the images that we should use (e.g. product-photo.jpg). ...but first about the URL: Often web developers stick all images in a single folder in the root: example-company.com/img/ — and I have stopped doing that. (I don't want to get into it, but basically, it seems more semantic for images which make up part of the content at each sub-directory) However, when all images appear in a folder, I feel that their filename needs to reflect what they are a bit more than usual, for example: example-company.com/img/example-company-productname-category.jpg It's a longer filename than just product.png, but as long as it's relevant, I see no problem with regards to SEO (unless you're keyword stuffing), and it could even help rank for keywords: "example company" "productname" "category" So no questions there. But what about when we have places images in the site architecture we outlined at the beginning? In other words, what if image URL paths look like this: example-company.com/products/category/productname/productname.jpg My question is, should the URL be kept short like above and only have the "productname" (and some descriptive keywords) as part of it's filename? Or, should it also include the "example-company" and "category"? Like so: example-company.com/products/category/productname/example-company-category-productname.jpg That seems much longer, and redundant when we look at the URL, but here are a few considerations. Images are often downloaded onto computers, and, to the average user, they lose their original URL and thus — it isn't clear where they came from. Also, some social networks, forums, and other platforms leave the filename intact when uploaded. (Many others rewrite it, for example, Pinterest and Facebook.) Another consideration, will this really help (even if ever so slightly) rank in Google Image Search, or at least inform Google that the product is something specific to the "example-company"? For example, what if this product can only be bought at this store and is the flagship product? In addition to an abundance of internal links to this product page, would having the "example company" name and "category" help it appear in "example company" searches? In other words, is less more?

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• Design pattern to handle queries using multiple models

  - by coderkane

  I am presented with a dilemma while trying to re-designing the class structure for my PHP/MySQL application to make it more elegant and conform it to the SOLID principle. The problem goes like this: Let as assume, there is an abstract class called person which has certain properties to define a generic person, such as name, age, date of birth etc. There are two classes, student, and teacher, that implements this abstract class. They add their own unique properties to it. I have designed all the three classes to include all the operational logic (details of which are not relevant in context of the question). Now, I need to create views/reports/data grids which contain details from multiple classes, for example, say, a list of all students doing projects in Chemistry mentored by a teacher whose name is the parameter to the query. This is just one example of a view, there are many different views in the application, which uses data from 3-4 tables, and each of them have multiple input parameters to generate them. Considering this particular example, I have written the relevant query using JOIN and the results are as expected and proper, now here is the dilemma: Keeping in mind the single responsibility principle, where should I keep this query? It does not belong to either Student class, or Teacher class or any other classes currently present. a) Should I create a new class, say dataView class, and design it as a MVC pattern and keep the query there? What about the other views? how do they fit in this architecture? b) Should I not keep the query in code at all, and make it DB View ? c) Am I completely wrong in the approach? If so what is the right approach? My considerations are as follows: a) should be easy to add new views later on if requirement comes, without having to copy-paste-modify code b) would like to make it as loosely coupled as possible so that if minor db structure changes happen, it does not break I did google searches on report design and OOP report generators, but all the result seem to focus on the visual design of the report rather than fetching the data. I have already taken care of the visual aspect of the report using MVC with html templates. I am sure this is a very fundamental problem with known solution, but I am somehow not able to find it (maybe searching with wrong keyword). Edit1: Modified the title to make it more relevant Edit2: The accepted answer got me thinking in the right direction and identify my design flaws, which eventually led me to find this question and the solution in Stack Overflow which gave me the detailed answer to clear the confusion.

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• Wireframing: A Day In the Life of UX Workshop at Oracle

  - by ultan o'broin

  The Oracle Applications User Experience team's Day in the Life (DITL) of User Experience (UX) event was run in Oracle's Redwood Shores HQ for Oracle Usability Advisory Board (OUAB) members. I was charged with putting together a wireframing session, together with Director of Financial Applications User Experience, Scott Robinson (@scottrobinson). Example of stunning new wireframing visuals we used on the DITL events. We put on a lively show, explaining the basics of wireframing, the concepts, what it is and isn't, considerations on wireframing tool choice, and then imparting some tips and best practices. But the real energy came when the OUAB customers and partners in the room were challenge to do some wireframing of their own. Wireframing is about bringing your business and product use cases to life in real UX visual terms, by creating a low-fidelity drawing to iterate and agree on in advance of prototyping and coding what is to be finally built and rolled out for users. All the best people wireframe. Leonardo da Vinci used "cartoons" on some great works, tracing outlines first and using red ochre or charcoal dropped through holes in the tracing parchment onto the canvas to outline the subject. (Image distributed under Wikimedia commons license) Wireframing an application's user experience design enables you to: Obtain stakeholder buy-in. Enable faster iteration of different designs. Determine the task flow navigation paths (in Oracle Fusion Applications navigation is linked with user roles). Develop a content strategy (readability, search engine optimization (SEO) of content, and so on) Lay out the pages, widgets, groups of features, and so on. Apply usability heuristics early (no replacement for usability testing, but a great way to do some heavy-lifting up front). Decide upstream which functional user experience design patterns to apply (out of the box solutions that expedite productivity). Assess which Oracle Application Development Framework (ADF) or equivalent technology components can be used (again, developer productivity is enhanced downstream). We ran a lively hands-on exercise where teams wireframed a choice of application scenarios using the time-honored tools of pen and paper. Scott worked the floor like a pro, pointing out great use of features, best practices, innovations, and making sure that the whole concept of wireframing, the gestalt, transferred. "We need more buttons!" The cry of the energized. Not quite. The winning wireframe session (online shopping scenario) from the Applications UX DITL event shown. Great fun, great energy, and great teamwork were evident in the room. Naturally, there were prizes for the best wireframe. Well, actually, prizes were handed out to the other attendees too! An exciting, slightly different aspect to delivery of this session made the wireframing event one of the highlights of the day. And definitely, something we will repeat again when we get the chance. Thanks to everyone who attended, contributed, and helped organize.

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• Software Tuned to Humanity

  - by Phil Factor

  I learned a great deal from a cynical old programmer who once told me that the ideal length of time for a compiler to do its work was the same time it took to roll a cigarette. For development work, this is oh so true. After intently looking at the editing window for an hour or so, it was a relief to look up, stretch, focus the eyes on something else, and roll the possibly-metaphorical cigarette. This was software tuned to humanity. Likewise, a user’s perception of the “ideal” time that an application will take to move from frame to frame, to retrieve information, or to process their input has remained remarkably static for about thirty years, at around 200 ms. Anything else appears, and always has, to be either fast or slow. This could explain why commercial applications, unlike games, simulations and communications, aren’t noticeably faster now than they were when I started programming in the Seventies. Sure, they do a great deal more, but the SLAs that I negotiated in the 1980s for application performance are very similar to what they are nowadays. To prove to myself that this wasn’t just some rose-tinted misperception on my part, I cranked up a Z80-based Jonos CP/M machine (1985) in the roof-space. Within 20 seconds from cold, it had loaded Wordstar and I was ready to write. OK, I got it wrong: some things were faster 30 years ago. Sure, I’d now have had all sorts of animations, wizzy graphics, and other comforting features, but it seems a pity that we have used all that extra CPU and memory to increase the scope of what we develop, and the graphical prettiness, but not to speed the processes needed to complete a business procedure. Never mind the weight, the response time’s great! To achieve 200 ms response times on a Z80, or similar, performance considerations influenced everything one did as a developer. If it meant writing an entire application in assembly code, applying every smart algorithm, and shortcut imaginable to get the application to perform to spec, then so be it. As a result, I’m a dyed-in-the-wool performance freak and find it difficult to change my habits. Conversely, many developers now seem to feel quite differently. While all will acknowledge that performance is important, it’s no longer the virtue is once was, and other factors such as user-experience now take precedence. Am I wrong? If not, then perhaps we need a new school of development technique to rival Agile, dedicated once again to producing applications that smoke the rear wheels rather than pootle elegantly to the shops; that forgo skeuomorphism, cute animation, or architectural elegance in favor of the smell of hot rubber. I struggle to name an application I use that is truly notable for its blistering performance, and would dearly love one to do my everyday work – just as long as it doesn’t go faster than my brain.

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• Move Data into the Grid for Scalable, Predictable Response Times

  - by JuergenKress

  CloudTran is pleased to introduce the availability of the CloudTran Transaction and Persistence Manager for creating scalable, reliable data services on the Oracle Coherence In-Memory Data Grid (IMDG). Use of IMDG architectures has been key to handling today’s web-scale loads because it eliminates database latency by storing important and frequently access data in memory instead of on disk. The CloudTran product lets developers easily use an IMDG for full ACID-compliant transactions without having to be concerned about the location or spread of data. The system has its own implementation of fast, scalable distributed transactions that does NOT depend on XA protocols but still guarantees all ACID properties. Plus, CloudTran asynchronously replicates data going into the IMDG to back-end datastores and back-up data centers, again ensuring ACID properties. CloudTran can be accessed through Java Persistence API (JPA via TopLink Grid) and now, through a new Low-Level API, or LLAPI. This is ideal for use in SOA applications that need data reliability, high availability, performance, and scalability. Still in limited beta release, the LLAPI gives developers the ability to use standard put/remove logic available in Coherence and then wrap logic with simple Spring annotations or XML+AspectJ to start transactions. An important feature of LLAPI is the ability to join transactions. This is a common outcome for SOA applications that need to reduce network traffic by aggregating data into single cache entries and then doing SOA service processing in the node holding the data. This results in the need to orchestrate transaction processing across multiple service calls. CloudTran has the capability to handle these “multi-client” transactions at speed with no loss in ACID properties. Developing software around an IMDG like Oracle Coherence is an important choice for today’s web-scale applications and services. But this introduces new architectural considerations to maintain scalability in light of increased network loads and data movement. Without using CloudTran, developers are faced with an incredibly difficult task to ensure data reliability, availability, performance, and scalability when working with an IMDG. Working with highly distributed data that is entirely volatile while stored in memory presents numerous edge cases where failures can result in data loss. The CloudTran product takes care of all of this, leaving developers with the confidence and peace of mind that all data is processed correctly. For those interested in evaluating the CloudTran product and IMDGs, take a look at this link for more information: http://www.CloudTran.com/downloadAPI.php, or, send your questions to [email protected]. WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. BlogTwitterLinkedInMixForumWiki Technorati Tags: Coherence,cloudtran,cache,WebLogic Community,Oracle,OPN,Jürgen Kress

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• Building Enterprise Smartphone App &ndash; Part 3: Key Concerns

  - by Tim Murphy

  This is part 3 in a series of posts based on a talk I gave recently at the Chicago Information Technology Architects Group.  Feel free to leave feedback. Keys Concerns Of Smartphones In The Enterprise These are the factors that you need to be aware of and address in order to build successful enterprise smartphone applications.  Most of them have nothing to do with the application itself as you will see here. Managing Devices Managing devices is a factor that is going to effect how much your company will have to spend outside of developing the applications.  How will you track the devices within the corporation?  How often will you have to replace phones and as a consequence have to upgrade your applications to support new phones?  The devices can represent a significant investment of capital.  If these questions are not addressed you will find a number of hidden costs throughout the life of your solution. Purchase or BYOD We have seen the trend of Bring Your Own Device (BYOD) lately within the enterprise.  How many meetings have you been in where someone is on their personal iPad, iPhone, Android phone or Windows Phone?  The issue is if you can afford to support everyone's choice in device? That is a lot to take on even if you only support the current release of each platform. Do you go with the most popular device or do you pick a platform that best matches your current ecosystem and distribute company owned devices?  There is no easy answer here, but you should be able give some dollar value to both hardware and development costs related to platform coverage. Asset Tracking/Insurance Smartphones are devices that are easier to lose or have stolen than laptops and desktops. Not only do you have your normal asset management concerns but also assignment of financial responsibility. You also will need to insure them against damage and theft and add legal documents that spell out the responsibilities of the employees that use these devices. Personal vs. Corporate Data What happens when you terminate an employee?  How do you recover the device?  What happens when they have put personal data on the device?  These are all situation that can cause possible loss of corporate intellectual property or legal repercussions of reclaiming a device with personal data on it.  Policies need to be put in place that protect the company from being exposed to type of loss.  This can mean significant legal and procedural cost that you need to consider. Coming Up In the last installment of this series I will cover application development considerations. del.icio.us Tags: Smartphones,Enterprise Smartphone Apps,Architecture

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• Hyper-V Server 2012 with Zambezi AMD FX-Series - Hardware assisted virtualization not present

  - by Vazgen

  I'm trying to set up VDI across Windows Server 2012 VMs running on Hyper-V 2012. The wizard's compatibility check for the Virtualization Host server failed with "Hardware-assisted virtualization is not present on the server". I'm running an FX-8120 CPU and have the ASUS M5A97 motherboard. I know I'm supposed to enable No-Execute (Hyper-V Hardware Considerations) but I cannot find that or any other synonyms of it in my motherboards UEFI BIOS (NX, XD, EVP, XN... nothing). I found this: PAE/NX/SSE2 Support Requirement Guide for Windows 8 which in short says "Windows 8 and Windows Server 2012 requires that systems must have processors that support NX, and NX must be turned on for important security safeguards to function effectively and avoid potential security vulnerabilities." this leads me to believe NX is on by default if I was able to get this far and install Hyper-V 2012 and Windows Server 2012.. Also I tried to disable AVX in cmd with "bcdedit /set xsavedisable 1". Did not resolve My processor is Zambezi FX-8120 and also supports RVI/SLAT/other synonym: processor: Newegg Processor FX-8120 support proof: AMD Processors with Rapid Virtualization Indexing Required to Run Hyper-V in Windows 8 What's going on here? I bought this CPU specifically after I had the same problems with an older AMD Athelon II and made sure to buy one with AMD-V and RVI. Thank you

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• COM+/Desktop Heap errors in IIS affecting sites at random?

  - by tresstylez

  We have a Win2K3 server that is hosting 30+ sites. Each site is configured to have its own unique application pool -- so that we can manually recycle specific sites if needed and not kill sessions for the others. From what I've read, the consequence of this type of setup is that each application pool worker process gets allocated a Desktop Heap (normally 512 kb's) and we limit the number of app pools we can serve. http://blogs.msdn.com/b/david.wang/archive/2006/01/25/security-considerations-of-usesharedwpdesktop-on-iis6.aspx PROBLEM: What we're seeing is that occasionally COM+ errors get triggered, presumably by hitting our 512 kb limit of the desktop heap -- and certain sites become unresponsive (or have errors) until we manually recycle that specific app pool. I know that I can increase the desktop heap limit to 1024, and make other tweaks/tunes, but I've been tasked with finding out what exactly causes one site's heap to max out as opposed to another. It seems that when we start seeing COM+ errors, the sites it affects are random -- small sites or big sites (heavier used). Is it based on process id? Traffic? Any pointers on understanding this a little more would be excellent. Thanks! jg

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• Officially announced RAM support size doesn't apply to one of twin rigs with just one difference

  - by Deniz

  It'll take a little long to describe my situation but here goes the story : In January 2009 we bought (the OEM parts) two similar systems with just one difference. One of them had a Phenom X4 cpu and the other one (mine) a Phenom X3 cpu. At the beginning we had problems with both systems to power them on whilst having all of their ram slots being full. We decided to install the systems with just 2 slots populated and later try to install the rest of ram sticks. Both systems did succeed to support 3 sticks. We tried many different procedures to make the systems work with their fourth ram slots being populated. We waited for new bios updates and flashed the boards when they were available, we tried different ram sticks with different frequencies etc. One day while we were trying to install the fourth stick, the X4 machine did accept it. The other one did not. The most mind boggling thing was that after one of my trials the X3 system begun to not operate with the third slot populated. Our boards did have AMD 770 chipsets and we even tried to change the board of the X3 machine with another 770 chipset board. Now my questions are : Should we change the cpu ? What is causing the X3 system to not accept the fourth (or now the third) ram stick ? The manufacturers sites do claim that this boards do accept 4 ram sticks (but they only tested them with certain ram brands and models). What are the limitations for maximum ram configurations on motherboards ? Are there some "rules of thumb" except frequency, voltage, chip type considerations for which we did check our parts ? Our boards are : Gigabyte GA-MA770-DS3 Sapphire PC-AM2RX780 - PURE CrossFireX 770

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• cPanel web server redundancy advice?

  - by crgnz

  At present I operate a (reasonably low volume) web-hosting service with a Centos 5.3 server running cPanel/WHM. I would like to implement a level of redundancy such that in the event of server failure, I can restore service with a minimum of effort in less than 60 minutes. I also want to setup a secondary DNS that cPanel will replicate with. My current idea is to kill two birds with one stone by: My current server is called "www1" Purchase an identical server (HP DL360 G4) with mirrored disks. Call this server "www2" Install Centos 5.4 (or perhaps I should install 5.3 to be identical with www1) Install cPanel/WHM on this server and fully license it Setup www1 and www2 cPanel to replicate DNS with each other Setup a nightly replication script that does the following: a) rsync's the /home directory from www1 to www2 b) dumps all MySQL databases on www1 and copies them to a temp folder (with root access only) on www2 c) triggers a script to run on www2 that restores the MySQL dumps Thus each night a fully working copy of all the websites and MySQL databases is copied to www2. I do not have enough knowledge of MySQL replication to understand if it works safely and transparently with cPanel. Thus I propose the mysql dump/copy/restore due to not knowing any better! In the event that www1 dies a horrible death, I envisage that I could login to www2, change the IP addresses to those that www1 had, and presto, the websites are available again. The advantage of this idea is that it is fairly simple and "low tech" and thus does not require an expert sysadmin to setup and monitor (I am NOT an expert sysadmin) The disadvantage of this idea is that up to a full days worth of data changes would be lost. I think this would be acceptable to the sorts of customers I host at the moment. The other disadvantage would be having to pay for a full cPanel license, but I am comfortable with that cost, so for now all I want to discuss are technical considerations. Is this a sound scheme?

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• Running Debian as guest operating system on a Hyper-V VM

  - by kce

  Hello. Layer-9 considerations are prompting a migration from Citrix XenServer to Hyper-V as our shop's virtualization platform of choice. This will require me to migrate our existing virtual machines from XenServer to Hyper-V. A hand full of these VMs are running Debian. Unfortunately, Debian does not seem to be on the list of approved/supported guest operating systems. In fact it seems that running Debian as a guest operating system of is rather difficult, although apparently not impossible. I have two interrelated questions: Does anyone have any experience running a Debian guest on Hyper-V? Is it one of those things where it just will not work at all or is more along the lines of "it will probably work fine, but we won't support it". Any experience here, positive or negative, would be helpful. How much of a bad idea is it to deviate from Hyper-V's list of supported guest operating systems? Again, is it either basically asking for Bad Things (TM) to happen or is just another instance of "it will probably work fine, but we won't support it"? Or is it somewhere in the middle? Thank you.

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• Building a Web proxy to get around same-origin restrictions for collaborative Webapp based on a MEAN stack

  - by Lew Cohen

  Can anyone point to books, articles, blogs, or even applications - open-source or proprietary - that detail building a Web proxy? This specific proxy will exist to get around the same-origin restrictions that prevent, for instance, loading a given Website into an <iframe> in a Webapp. This Webapp is a collaborative application in which a group of users log in to the app's Website and can then load different Websites into this app's <iframe> and do various collaborative things (e.g., several users simultaneously browsing a Website, in synch). The Webapp itself is built on a MEAN stack (MongoDB, Express, AngularJS, and Node.js). The purpose of this proxy is not to do anonymous browsing or to bypass censorship. Information on how to build such a vehicle seems not to be readily available from my research. I've come across Glype but am not sure whether this is a feasible solution. I don't want to reinvent the wheel, so if a product is available for purchase, great. Else, we'd need to build one. The one that seems to be close is http://www.corsproxy.com. In effect, we'd like to re-create this since it evidently does what's needed. I don't care what server-side technology is used. Our app is MEAN-based, if that has any bearing. Also, the proxy has to obviously honor basic security considerations (user cookies, etc.) and eventually be scalable. So, anyone know of any sources that would detail how to build one of these? Is it even worth building if something already exists? If so, what would be a good candidate? Any other issues that should be considered with this proxy/application? Thanks a lot!

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• Bridging Wireless and Wired Interfaces in Linux

  - by The Daemons Advocate

  My network setup is something like: Wireless Router <---> Netbook <---> Ubuntu Desktop ...or, more verbosely (with interfaces): Wireless Router <--(wireless)--> (eth2) Ubuntu Netbook Ubuntu Netbook (eth0) <---(wired)----> (eth0) Ubuntu Desktop In a perfect world, I'd have the desktop wired, but weird circumstances combined with my wanting to understand more about networking in linux make me want to figure out how to bridge these two devices. A bit of googling has given me this example using bridge-utils, and here's how I'm (failing) to setup the bridge (on the netbook): sudo -i ifconfig eth0 0.0.0.0 ifconfig eth2 0.0.0.0 brctl addbr bridget brctl addif bridget eth0 brctl addif bridget eth2 ifconfig bridget up ...then, trying to make sure that the netbook can still get on the internets... route add default gateway 192.168.2.1 dhclient bridget What happens after this is that the dhclient command above (netbook) doesn't get served an IP, and the Desktop, if I run dhclient, it doesn't get served an IP. Some weird considerations might be that I'm running the Network Manager Applet that comes with Ubuntu. While I'm sure I can get a command line wireless configuration setup, it's a bit complex. Can someone give me a shout as to where I'm going wrong? I'd also like to note another related question titled 'Bridging my laptop’s wireless and wired adaptors', however the setup is different to mine.

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• should i link to a blog site or install my own blog engine?

  - by dc

  we're setting up a company blog. Our technology stack is .NET. Should we just use blogger/wordpress for the blog and redirect to it from our site? or should i install a blog engine directly on our site (e.g. blogEngine.NET)? some considerations i'd like feedback on are: 1.SEO - if you host your blog on wordpress/blogger instead of installing it on your site - will you get better page rankings? (if the content was the exact same) 2.scalability - i've read that dotNetBlogEngine doesnt scale well on web farms etc. our website is setup to be stateless. 3.security - presumably a hosted blog site has the advantage of having regular security updates. how easy is it to keep an installed blog engine patched? 4.examples of installed blog engines - dotNetBlogEngine seems to be the best but has a couple of limitations. can anyone suggest another one (n/a if you're advice is to host the blog on blogger/wordpress) 5.any other comments/issues/concerns we should be aware of? thanks for your feedback!

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• nginx- Rewrite URL with Trailing Slash

  - by Bryan

  I have a specialized set of rewrite rules to accommodate a mutli site cms setup. I am trying to have nginx force a trailing slash on the request URL. I would like it to redirect requests for domain.com/some-random-article to domain.com/some-random-article/ I know there are semantic considerations with this, but I would like to do it for SEO purposes. Here is my current server config. server { listen 80; server_name domain.com mirror.domain.com; root /rails_apps/master/public; passenger_enabled on; # Redirect from www to non-www if ($host = 'domain.com' ) { rewrite ^/(.*)$ http://www.domain.com/$1 permanent; } location /assets/ { expires 1y; rewrite ^/assets/(.*)$ /assets/$http_host/$1 break; } # / -> index.html if (-f $document_root/cache/$host$uri/index.html) { rewrite (.*) /cache/$host$1/index.html break; } # /about -> /about.html if (-f $document_root/cache/$host$uri.html) { rewrite (.*) /cache/$host$1.html break; } # other files if (-f $document_root/cache/$host$uri) { rewrite (.*) /cache/$host$1 break; } } How would I modify this to add the trailing slash? I would assume there has to be a check for the slash so that you don't end up with domain.com/some-random-article//

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• nginx- Rewrite URL with Trailing Slash

  - by Bryan

  I have a specialized set of rewrite rules to accommodate a mutli site cms setup. I am trying to have nginx force a trailing slash on the request URL. I would like it to redirect requests for domain.com/some-random-article to domain.com/some-random-article/ I know there are semantic considerations with this, but I would like to do it for SEO purposes. Here is my current server config. server { listen 80; server_name domain.com mirror.domain.com; root /rails_apps/master/public; passenger_enabled on; # Redirect from www to non-www if ($host = 'domain.com' ) { rewrite ^/(.*)$ http://www.domain.com/$1 permanent; } location /assets/ { expires 1y; rewrite ^/assets/(.*)$ /assets/$http_host/$1 break; } # / -> index.html if (-f $document_root/cache/$host$uri/index.html) { rewrite (.*) /cache/$host$1/index.html break; } # /about -> /about.html if (-f $document_root/cache/$host$uri.html) { rewrite (.*) /cache/$host$1.html break; } # other files if (-f $document_root/cache/$host$uri) { rewrite (.*) /cache/$host$1 break; } } How would I modify this to add the trailing slash? I would assume there has to be a check for the slash so that you don't end up with domain.com/some-random-article//

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• Centralized backup method recommendation for SMEs with various OSes

  - by Akinator

  Hi I was wondering what in your opinion is the "best" method for having "everything" backed-up in the following situation. We are a SMEs with 10 computers in total. Three of those computers are MACs The rest are windows (1 vista, 4 win7 and 2 XPs) I'm very open to what the method should be but you should also consider the follwing: Very limited resources Quite "small" bandwidth (4 MBs for all (download) 0.4 MBs (upload, yep, thats it)- though this might get, a little bit better) One of the main thing to back up would be the mails, considerations: All windows computers use outlook, mainly 2003 There is one mac that uses outlook too (for mac of course - not 2011 yet) We also have to backup the files: Not a huge amount Very few very big files Very organizes (by machine) What I would like is to hear your opinions as to which would be the best method (or combination of methods - preferably one of course) considering. We are not sure what do we need and I'm open to suggestions, though an online (cloud based applications) would be great, remember the the bandwidth is unbearable. Last think to consider, it that we would like to do weekly updates (unless the method is very easy of course). Thanks in advance!! I tried to be as specific as possible, but if anything is needed I'll gladly update, please ask for any clarification needed! Please avoid any answers like upgrade all to windows 7 and throw away your macs :) our's may not be an ideal situation, but it is what it is, and right now, it would be impossible for us to change it for a lot of circumstances.

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• Centralized backup method recommendation for SMEs with various OSes

  - by Akinator

  Hi I was wondering what in your opinion is the "best" method for having "everything" backed-up in the following situation. We are a SMEs with 10 computers in total. Three of those computers are MACs The rest are windows (1 vista, 4 win7 and 2 XPs) I'm very open to what the method should be but you should also consider the follwing: Very limited resources Quite "small" bandwidth (4 MBs for all (download) 0.4 MBs (upload, yep, thats it)- though this might get, a little bit better) One of the main thing to back up would be the mails, considerations: All windows computers use outlook, mainly 2003 There is one mac that uses outlook too (for mac of course - not 2011 yet) We also have to backup the files: Not a huge amount Very few very big files Very organizes (by machine) What I would like is to hear your opinions as to which would be the best method (or combination of methods - preferably one of course) considering. We are not sure what do we need and I'm open to suggestions, though an online (cloud based applications) would be great, remember the the bandwidth is unbearable. Last think to consider, it that we would like to do weekly updates (unless the method is very easy of course). Thanks in advance!! I tried to be as specific as possible, but if anything is needed I'll gladly update, please ask for any clarification needed! Please avoid any answers like upgrade all to windows 7 and throw away your macs :) our's may not be an ideal situation, but it is what it is, and right now, it would be impossible for us to change it for a lot of circumstances.

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• GIT and Django Projects

  - by Garfonzo

  I have two servers, a Dev server and a Production server. The Production server runs a live Django site, while the Dev server has a copy of the Django project. I use the Dev server to work on the Django site, make improvements, fix bugs, etc. Once I am satisfied with how the Dev version is working, I move the whole Django directory from the Dev server and replace the same directory on the Production server. The two servers are not on the same LAN so the process is not straight forward. There are a few issues with this that I am having so far. Moving the whole directory is laborious and time consuming If I only change a few files, it is even move tedious to replace a few files than the whole directory since the project is getting fairly large and I worry that I'll miss something I often run into permission issues after I've moved things It's super inefficient, and, due to lack of time, I haven't bothered figuring out a new method. Now it's just getting out of hand and i need to address the situation. I am thinking I need to move to a GIT repository for this process. But my question is how would I set this all up? Do I host the repository on the Production server, pull from the Dev server, do work, then commit? Then I would pull from the Production server (same server the repo is hosted on) to run the current working version? Do I host the repo on the Dev Server, pulling from the same server to do work on the repo, then pull a working version onto the Production server? Should I be hosting the repo on a different server than the Production server and the Dev server (a third server)? Are there any special considerations with Django and repos that I need to worry about? Thanks for the help :)

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• Mysql: Working With 192 Trillion Records... (Yes, 192 Trillion)

  - by Sarah

  Here's the question... Considering 192 trillion records, what should my considerations be? My main concern is speed. Here's the table... CREATE TABLE `ref` ( `id` INTEGER(13) AUTO_INCREMENT DEFAULT NOT NULL, `rel_id` INTEGER(13) NOT NULL, `p1` INTEGER(13) NOT NULL, `p2` INTEGER(13) DEFAULT NULL, `p3` INTEGER(13) DEFAULT NULL, `s` INTEGER(13) NOT NULL, `p4` INTEGER(13) DEFAULT NULL, `p5` INTEGER(13) DEFAULT NULL, `p6` INTEGER(13) DEFAULT NULL, PRIMARY KEY (`id`), KEY (`s`), KEY (`rel_id`), KEY (`p3`), KEY (`p4`) ); Here's the queries... SELECT id, s FROM ref WHERE red_id="$rel_id" AND p3="$p3" AND p4="$p4" SELECT rel_id, p1, p2, p3, p4, p5, p6 FROM ref WHERE id="$id" INSERT INTO rel (rel_id, p1, p2, p3, s, p4, p5, p6) VALUES ("$rel_id", "$p1", "$p2", "$p3", "$s", "$p4", "$p5", "$p6") Here's some notes... The SELECT's will be done much more frequently than the INSERT. However, occasionally I want to add a few hundred records at a time. Load-wise, there will be nothing for hours then maybe a few thousand queries all at once. Don't think I can normalize any more (need the p values in a combination) The database as a whole is very relational. This will be the largest table by far (next largest is about 900k) UPDATE (08/11/2010) Interestingly, I've been given a second option... Instead of 192 trillion I could store 2.6*10^16 (15 zeros, meaning 26 Quadrillion)... But in this second option I would only need to store one bigint(18) as the index in a table. That's it - just the one column. So I would just be checking for the existence of a value. Occasionally adding records, never deleting them. So that makes me think there must be a better solution then mysql for simply storing numbers... Given this second option, should I take it or stick with the first... [edit] Just got news of some testing that's been done - 100 million rows with this setup returns the query in 0.0004 seconds [/edit]

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