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• Can't recognize local webserver

  - by Syed Khalil-ur-Rehman

  My Internet Cable provider has set up a web server which hosts different entertainment material like movies, songs, tv shows and games etc. While using windows the pc recognises it as a local web server and downloads files with full LAN speed of 10 mb per second. On the contrary when using Ubuntu I am only able to download the files on my Internet speed not more than 100 kb per second. What ever I try ubuntu does not recognizes the webserver as a local area network web server but as a normal internet website. How to make Ubuntu download files from this server with full LAN speed. Please help in this regard. The url is http://dmasti.pk and yes it is a web server browsable by a web browser like firefox or ie.

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• Up Close: "Filling the Needs of Higher Education"

  Ted Simpson, vice president of communications for the Higher Education User Group (HEUG), shares his thoughts on IT and higher education.

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• Cloud Leverage Offers Cheap Online Storage

  A new startup promises enterprise-class online storage for a nickel a gigabyte per month with no transfer fees.

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• How To: Use Monitoring Rules and Policies

  - by Owen Allen

  One of Ops Center's most useful features is its asset monitoring capability. When you discover an asset - an operating system, say, or a server - a default monitoring policy is applied to it, based on the asset type. This policy contains rules that specify what properties are monitored and what thresholds are considered significant. Ops Center will send a notification if a monitored asset passes one of the specified thresholds. But sometimes you want different assets to be monitored in different ways. For example, you might have a group of mission-critical systems, for which you want to be notified immediately if their file system usage rises above a specific threshold. You can do so by creating a new monitoring policy and applying it to the group. You can also apply monitoring policies to individual assets, and edit them to meet the requirements of your environment. The Tuning Monitoring Rules and Policies How-To walks you through all of these procedures.

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• Hyper-V for Developers - presentation from London .NET Users and VBUG Bracknell

  - by Liam Westley

  Thanks to both London .NET User group and VBUG Bracknell for allowing me to present my Hyper-V for Developers talk last week.  A weekend at DDD Scotland followed by two user group presentations means I'm a bit late getting the presentations uploaded to the blog, so many apologies if you've been waiting.   LDNUG - www.tigernews.co.uk/blog-twickers/LDNUG-HyperV4Devs.zip   VBUG - www.tigernews.co.uk/blog-twickers/VBUG-HyperV4Devs.zip Also, at VBUG Bracknell I was asked if you could configure a Hyper-V server to user wireless networking (which might be useful if you have a laptop for demonstrations).  Well here's the post from Ben Armstrong (Virtual PC Guy) which details how that can be configured,   http://blogs.msdn.com/virtual_pc_guy/archive/2008/01/09/using-hyper-v-with-a-wireless-network-adapter.aspx ... and it's also detailed on the TechNet wiki as part of running Hyper-V on a laptop,   social.technet.microsoft.com/wiki/contents/articles/hyper-v-how-to-run-hyper-v-on-a-laptop.aspx

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• Podcast Show Notes: William Ulrich and Neal McWhorter on Business Architecture

  - by Bob Rhubart

  The latest ArchBeat podcast program features a four-part conversation with William Ulrich and Neal McWhorter, the authors of Business Architecture: The Art and Practice of Business Transformation, available from Meghan-Kiffer Press. Listen to Part 1 Bill and Neal cover the basics and discuss the effects of the lack of business architecture on organizations. Listen to Part 2 (Jan 19) What really happens to the billions of dollars annually invested in IT. Listen to Part 3 (Jan 26) Why the IT and business sides of many organizations can’t play nice. Listen to Part 4 (Feb 2) How IT architects and business architects can work together to get the ship back on course and keep it there. Connect William Ulrich Website | LinkedIn | Business Architecture Guild Neal McWhorter Website | LinkedIn | Business Architecture Group on OMG Coming Soon Bob Hensle, Director, Oracle Enterprise Architecture Group, discusses the recently launched IT Solutions from Oracle (ITSO) library of documents. Excerpts from a recent OTN Architect Community Virtual Meet-up. Stay tuned: RSS del.icio.us Tags: business architecture,enterprise architecture,arch2arch,archbeat,podcast,business transformation,oracle,oracle technology network Technorati Tags: business architecture,enterprise architecture,arch2arch,archbeat,podcast,business transformation,oracle,oracle technology network

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• Oracle allo SMAU 2012 - La strategia CRM e l’approccio alla Customer Experience: perchè le aziende devono servire diversamente i propri clienti.

  - by Silvia Valgoi

  Lo scorso 18 Ottobre Oracle è stata presente all'edizione milanese di SMAU 2012 all'interno della Apps & Cloud Arena. Invitata da AISM (Associazione italiana marketing) Oracle  ha avuto l’opportunità di partecipare attivamente con un intervento all’interno dell’area tematica “Gestire efficacemente i propri clienti attraverso le applicazioni di Customer Relationship Management”. Le molte persone presenti hanno potuto ascoltare dove, secondo Oracle, si genera reale differenziazione del brand – al di là dei processi ormai consolidati di marketing , vendita e servizio al cliente – e dove si posiziona il nuovo valore per il business. Se non hai potuto partecipare guarda qui la presentazione di Oracle. Per maggiori informazioni: Silvia Valgoi

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• Getting started with Oracle Database In-Memory Part III - Querying The IM Column Store

  - by Maria Colgan

  In my previous blog posts, I described how to install, enable, and populate the In-Memory column store (IM column store). This weeks post focuses on how data is accessed within the IM column store. Let’s take a simple query “What is the most expensive air-mail order we have received to date?” SELECT Max(lo_ordtotalprice) most_expensive_order FROM lineorderWHERE  lo_shipmode = 5; The LINEORDER table has been populated into the IM column store and since we have no alternative access paths (indexes or views) the execution plan for this query is a full table scan of the LINEORDER table. You will notice that the execution plan has a new set of keywords “IN MEMORY" in the access method description in the Operation column. These keywords indicate that the LINEORDER table has been marked for INMEMORY and we may use the IM column store in this query. What do I mean by “may use”? There are a small number of cases were we won’t use the IM column store even though the object has been marked INMEMORY. This is similar to how the keyword STORAGE is used on Exadata environments. You can confirm that the IM column store was actually used by examining the session level statistics, but more on that later. For now let's focus on how the data is accessed in the IM column store and why it’s faster to access the data in the new column format, for analytical queries, rather than the buffer cache. There are four main reasons why accessing the data in the IM column store is more efficient. 1. Access only the column data needed The IM column store only has to scan two columns – lo_shipmode and lo_ordtotalprice – to execute this query while the traditional row store or buffer cache has to scan all of the columns in each row of the LINEORDER table until it reaches both the lo_shipmode and the lo_ordtotalprice column. 2. Scan and filter data in it's compressed format When data is populated into the IM column it is automatically compressed using a new set of compression algorithms that allow WHERE clause predicates to be applied against the compressed formats. This means the volume of data scanned in the IM column store for our query will be far less than the same query in the buffer cache where it will scan the data in its uncompressed form, which could be 20X larger. 3. Prune out any unnecessary data within each column The fastest read you can execute is the read you don’t do. In the IM column store a further reduction in the amount of data accessed is possible due to the In-Memory Storage Indexes(IM storage indexes) that are automatically created and maintained on each of the columns in the IM column store. IM storage indexes allow data pruning to occur based on the filter predicates supplied in a SQL statement. An IM storage index keeps track of minimum and maximum values for each column in each of the In-Memory Compression Unit (IMCU). In our query the WHERE clause predicate is on the lo_shipmode column. The IM storage index on the lo_shipdate column is examined to determine if our specified column value 5 exist in any IMCU by comparing the value 5 to the minimum and maximum values maintained in the Storage Index. If the value 5 is outside the minimum and maximum range for an IMCU, the scan of that IMCU is avoided. For the IMCUs where the value 5 does fall within the min, max range, an additional level of data pruning is possible via the metadata dictionary created when dictionary-based compression is used on IMCU. The dictionary contains a list of the unique column values within the IMCU. Since we have an equality predicate we can easily determine if 5 is one of the distinct column values or not. The combination of the IM storage index and dictionary based pruning, enables us to only scan the necessary IMCUs. 4. Use SIMD to apply filter predicates For the IMCU that need to be scanned Oracle takes advantage of SIMD vector processing (Single Instruction processing Multiple Data values). Instead of evaluating each entry in the column one at a time, SIMD vector processing allows a set of column values to be evaluated together in a single CPU instruction. The column format used in the IM column store has been specifically designed to maximize the number of column entries that can be loaded into the vector registers on the CPU and evaluated in a single CPU instruction. SIMD vector processing enables the Oracle Database In-Memory to scan billion of rows per second per core versus the millions of rows per second per core scan rate that can be achieved in the buffer cache. I mentioned earlier in this post that in order to confirm the IM column store was used; we need to examine the session level statistics. You can monitor the session level statistics by querying the performance views v$mystat and v$statname. All of the statistics related to the In-Memory Column Store begin with IM. You can see the full list of these statistics by typing: display_name format a30 SELECT display_name FROM v$statname WHERE  display_name LIKE 'IM%'; If we check the session statistics after we execute our query the results would be as follow; SELECT Max(lo_ordtotalprice) most_expensive_order FROM lineorderWHERE lo_shipmode = 5; SELECT display_name FROM v$statname WHERE  display_name IN ('IM scan CUs columns accessed',                        'IM scan segments minmax eligible',                        'IM scan CUs pruned'); As you can see, only 2 IMCUs were accessed during the scan as the majority of the IMCUs (44) in the LINEORDER table were pruned out thanks to the storage index on the lo_shipmode column. In next weeks post I will describe how you can control which queries use the IM column store and which don't. +Maria Colgan

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• ALT.NET Seattle

  - by GeekAgilistMercenary

  Time to rock the ALT.NET scene and head up to the conference this weekend.  I must say, out of all the conferences I have been to the ALT.NET Conference is by far one of the best.  Great minds, great attitudes, awesome chances to learn, awesome changes to expand on one's ideas with others that hit on the same hurdles!  All in all, last year was great and I am expecting it to be a great conference this year also. For more information check out the ALT.NET site: http://2010conf.altnetseattle.org/ To get more involved in the monthly ALT.NET events in Seattle: http://groups.google.com/group/altnetseattle http://www.facebook.com/group.php?gid=111345965570 http://www.altnetseattle.org/ If you are in the Seattle area this weekend, be sure to hit up the conference. For original entry and other blog entries check out my personal blog.

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• Is this overkill? Using MDX queries and cubes instead of SQL stored procedures

  - by Jason Holland

  I am new to Microsoft's SQL Server Analysis Services Cubes and MDX queries. Where I work we have a daily sales table in SQL Server 2005 that already contains an aggregate of sale information per store per day. At this time it contains only 164,000+ rows. We have a sales cube dedicated to this table that about 15 reports are based off of. Now, I should also note that we generate reports based on our own fiscal year criteria: a 13 period year (1 month equals 28 days etc.). Is this overkill? At what point is it justified to begin using SSAS Cubes/MDX over plain old SQL Server stored procedures? Since I have always been just using plain old SQL am I tragically late to the MDX party?

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• Protect Data and Save Money? Learn How Best-in-Class Organizations do Both

  - by roxana.bradescu

  Databases contain nearly two-thirds of the sensitive information that must be protected as part of any organization's overall approach to security, risk management, and compliance. Solutions for protecting data housed in databases vary from encrypting data at the application level to defense-in-depth protection of the database itself. So is there a difference? Absolutely! According to new research from the Aberdeen Group, Best-in-Class organizations experience fewer data breaches and audit deficiencies - at lower cost -- by deploying database security solutions. And the results are dramatic: Aberdeen found that organizations encrypting data within their databases achieved 30% fewer data breaches and 15% greater audit efficiency with 34% less total cost when compared to organizations encrypting data within applications. Join us for a live webcast with Derek Brink, Vice President and Research Fellow at the Aberdeen Group, next week to learn how your organization can become Best-in-Class.

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• OpenGL Performance Questions

  - by Daniel

  This subject, as with any optimisation problem, gets hit on a lot, but I just couldn't find what I (think) I want. A lot of tutorials, and even SO questions have similar tips; generally covering: Use GL face culling (the OpenGL function, not the scene logic) Only send 1 matrix to the GPU (projectionModelView combination), therefore decreasing the MVP calculations from per vertex to once per model (as it should be). Use interleaved Vertices Minimize as many GL calls as possible, batch where appropriate And possibly a few/many others. I am (for curiosity reasons) rendering 28 million triangles in my application using several vertex buffers. I have tried all the above techniques (to the best of my knowledge), and received almost no performance change. Whilst I am receiving around 40FPS in my implementation, which is by no means problematic, I am still curious as to where these optimisation 'tips' actually come into use? My CPU is idling around 20-50% during rendering, therefore I assume I am GPU bound for increasing performance. Note: I am looking into gDEBugger at the moment Cross posted at StackOverflow

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• Customer Insight. Trend, Modelli e Tecnologie di Successo nel CRM di ultima generazione

  - by antonella.buonagurio(at)oracle.com

  Lo scorso 27 gennaio a Roma si è tenuta la 3° tappa del CRM On Demand Roadshow. L'iniziativa è stata un un momento di incontro e confronto tra Direttori Marketing, esperti di CRM e Direttori Sales, sui nuovi trend del marketing relazionale.   Grazie altri interventi di ItalTBS, Bricofer, Renault Italia, Avis,  IRCCS, San Raffale e con la moderazione del Prof. Maurizio Mesenzani  si sono condivise idee, esperienze, riflessioni sugli strumenti che ad oggi si sono dimostrati essere i  più efficaci per individuare i bisogni del cliente, trasformare i clienti potenziali in clienti soddisfatti, creare engagement. Continua a leggere per vedere le presentazioni

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• Scene Graph Traversing Techniques

  - by Bunkai.Satori

  Scene Graph seems to be the most effective way of representing the game world. The game world usually tends to be as large as the memory and device can handle. In contrast, the screen of the device captures only a fraction of the Game World/Scene Graph. Ideally, I wish to process(update and render) only the visible game objects/nodes on per-frame basis. My question therefore is, how to traverse the scene graph so, that I will focus only on the game notes that are in the camera frustum? How to organize data so that I can easily focus only on the scene graph nodes visible to me? What are techniques to minimize scenegraph traversal time? Is there such way as more effective traversal, or do I have to traverse whole scene graph on per-frame basis?

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• links for 2010-12-08

  - by Bob Rhubart

  Rittman Mead Consulting Blog Archive Oracle BI EE 11g &#8211; Managing Host Name Changes Rittman Mead's Venkatakrishnan J (an Oracle ACE) looks at "how we can go about getting BI EE 11g to work when the Host Name of the machine changes post install and configuration."  (tags: oracle businessintelligence obiee) Evident Software's CTO and co-founder discusses Oracle Coherence (Application Grid) (tags: oracle successcast podcast coherence grid) Choice Hotels' Rain Fletcher talks WebLogic Server (Application Grid) (tags: oracle successcast weblogic podcast) Baz Khuti, CTO of Avocent discusses their next generation application and WebLogic (Application Grid) (tags: oracle successcast podcast) Oracle Counts Clouds | JAVA Developer's Journal "The Independent Oracle Users Group (IOUG), which has 20,000 members, has run up an Oracle-sponsored survey that found significant cloud adoption by Oracle users."  (tags: oracle cloud survey ioug) Oracle Customers Warm to the Cloud | CTO Edge "The Independent Oracle Users Group (IOUG) has published the results of a study on cloud adoption and, to no surprise, the enterprise loves the cloud. " (tags: oracle cloud ioug survey)

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• E-Business Suite Sessions at Sangam 2013 in Hyderabad

  - by Sara Woodhull

  The Sangam 2013 conference, sponsored jointly by the All-India Oracle Users' Group (AIOUG) and India Oracle Applucations Users Group (IOAUG), will be in Hyderabad, India on November 8-9, 2013.  This year, the E-Business Suite Applications Technology Group (ATG) will offer two speaker sessions and a walk-in usability test of upcoming EBS user interface features.  It's only about two weeks away, so make your plans to attend if you are in India. Sessions Oracle E-Business Suite Technology: Latest Features and Roadmap Veshaal Singh, Senior Director, ATG Development Friday, Nov. 9, 11:00-12:00 This Oracle development session provides an overview of Oracle's product strategy for Oracle E-Business Suite technology, the capabilities and associated business benefits of recent releases, and a review of capabilities on the product roadmap. This is the cornerstone session for Oracle E-Business Suite technology. Come hear about the latest new usability enhancements of the user interface; systems administration and configuration management tools; security-related updates; and tools and options for extending, customizing, and integrating Oracle E-Business Suite with other applications. Integration Options for Oracle E-Business Suite Rekha Ayothi, Lead Product Manager, ATG Friday, Nov. 9, 2:00-3:00 In this Oracle development session, you will get an understanding of how, when and where you can leverage Oracle's integration technologies to connect end-to-end business processes across your enterprise, including your Oracle Applications portfolio. This session offers a technical look at Oracle E-Business Suite Integrated SOA Gateway, Oracle SOA Suite, Oracle Application Adapters for Data Integration for Oracle E-Business Suite, and other options for integrating Oracle E-Business Suite with other applications. Usability Testing There will be multiple opportunities to participate in usability testing at Sangam '13.  The User Experience team is running a one-on-one usability study that requires advance registration.  In addition, we will be hosting a special walk-in usability lab to get feedback for new Oracle E-Business Suite OA Framework features.  The walk-in lab is a shorter usability experience that does not require any pre-registration.  In both cases, Oracle wants your feedback!  Even if you only have a few minutes, come by the User Experience Lab, meet the team, and try the walk-in lab.

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• links for 2011-03-08

  - by Bob Rhubart

  The Empowered Business "Someone needs to be the enterprise parent that asks the question, “do you really need that?” It may be a shiny new thing, but does it make a difference in the ability to accomplish the strategy and goals?" - Enterprise Architect Todd Biske (tags: enterprisearchitecture) Knowledge Workers in the British Raj "While we’ve used technology to change business, business has also evolved to the point that it’s changing how we think about and use technology." - Peter Evans Greenwood (tags: enterprisearchitecture enterprise2.0) Arun Gupta, Miles to go ...: OTN Developer Day Boston 2011 - Slides & Trip Report Arun Gupta shares slides from his Developer Day presentations. (tags: oracle otn java) Use WLST to Delete All JMS Messages From a Destination (James Bayer's Blog) James Bayer responds to a question. (tags: oracle otn weblogic jms) Triangle Circle Square: Apex in the Amazon Cloud Scott Wesley shares several links to resources covering Oracle Apex on an Amazon EC2 instance. (tags: oracle apex ec2 amazon cloud) William Vambenepe: Reading IBM's proposed standard for Cloud Architecture The always entertaining William Vambenepe gives IBM's proposed Cloud standards the full Ebert. (tags: oracle cloud ibm standards) Government Information Group Cloud Computing Research Study "The twin pressures of reduced budgets and the need for greater efficiency have led the federal government to strongly promote cloud computing as a solution whenever possible." (tags: cloudcomputing cloud) The Ron Batra Blog: Technology Whispers: Top 10 Reasons to go ExaData "Continuing my exploration of ExaData, I thought I'd take a minute to consolidate my thoughts into key reasons for which Oracle ExaData could be a good fit for your needs." - Oracle ACE Director Ron Batra (tags: oracle oracleace exadata) Oracle WebCenter: Composite Applications & Mash-Ups (Oracle Enterprise 2.0 Blog) "The new Business Mash-up editor allows business users to take any Oracle Application or 3rd party application and wire the backend data sources or APIs to a rich set of visualizations and reuse them in mashups." (tags: oracle webcenter enterprise2.0) Antonio Romero: Great Discussion of ETL and ELT Tooling in TDWI Linkedin Group Antonio says: "There’s a great discussion of ETL and ELT tooling going on in the official TDWI Linkedin group, under the heading 'How Sustainable is SQL for ETL?' It delves into a wide range of topics." (tags: oracle linkedin etl elt) YouTube - Bunny Inc. - Episode 1. Mr. CIO meets Mr. Executive Manager Yes, it's a commercial. But it's well done and it's funny. (tags: e20 enterprise2.0 webcenter) Markus Eisele: Both Weblogic and Glassfish are strategic products for Oracle Oracle ACE Director Markus Eisele shares selected quotes pulled from the recent TechCast Live interview with Oracle's Anil Gaur and Adam Leftik (tags: oracle java weblogic glassfish) How to become an Oracle SOA expert? (SOA Partner Community Blog) Jurgan Kress shares info and links for those interested in capitalizing on SOA. (tags: oracle soa)

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• What are best practices when giving a presentation to programmers?

  - by blunders

  I've watched 50 plus presentations on programming topics, although most have been online; example, Google Tech Talks -- and have ad-hoc experience on what formats work for programmers, or practices to take into account when presenting to a group of programmers. That said, I'm open to any suggestions, but here's some topic of the top of my head: Programming Jokes, Images, etc. Posting Code for download Contact Info Collecting feedback Presenting Code on Screen If it matters, in this case -- I'm giving a presentation on using a scripting language to extract, transform and load data to a local user group who's focus is the scripting language; Ruby in this case. Questions, feedback, requests -- just comment, thanks!!

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• How to design a scalable notification system?

  - by Trent

  I need to write a notification system manager. Here is my requirements: I need to be able to send a Notification on different platforms, which may be totally different (for exemple, I need to be able to send either an SMS or an E-mail). Sometimes the notification may be the same for all recipients for a given platform, but sometimes it may be a notification per recipients (or several) per platform. Each notification can contain platform specific payload (for exemple an MMS can contains a sound or an image). The system need to be scalable, I need to be able to send a very large amount of notification without crashing either the application or the server. It is a two step process, first a customer may type a message and choose a platform to send to, and the notification(s) should be created to be processed either real-time either later. Then the system needs to send the notification to the platform provider. For now, I end up with some though but I don't know how scalable it will be or if it is a good design. I've though of the following objects (in a pseudo language): a generic Notification object: class Notification { String $message; Payload $payload; Collection<Recipient> $recipients; } The problem with the following objects is what if I've 1.000.000 recipients ? Even if the Recipient object is very small, it'll take too much memory. I could also create one Notification per recipient, but some platform providers requires me to send it in batch, meaning I need to define one Notification with several Recipients. Each created notification could be stored in a persistent storage like a DB or Redis. Would it be a good it to aggregate this later to make sure it is scalable? On the second step, I need to process this notification. But how could I distinguish the notification to the right platform provider? Should I use an object like MMSNotification extending an abstract Notification? or something like Notification.setType('MMS')? To allow to process a lot of notification at the same time, I think a messaging queue system like RabbitMQ may be the right tool. Is it? It would allow me to queue a lot of notification and have several worker to pop notification and process them. But what if I need to batch the recipients as seen above? Then I imagine a NotificationProcessor object for which I could I add NotificationHandler each NotificationHandler would be in charge to connect the platform provider and perform notification. I can also use an EventManager to allow pluggable behavior. Any feedbacks or ideas? Thanks for giving your time. Note: I'm used to work in PHP and it is likely the language of my choice.

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• What happens with project backlog if sprint due date is missed?

  - by nikita

  Suppose that I have project backlog item with effort of 40 hours. My sprint is 40 hours (1 week) and I have one developer in team. So developer creates child task to pending backlog and estimates work to 40 hours. At the end of the sprint developer didn't succeed in resolving his task. Suppose that developer works only and only 40 hours per week. On the next week there would be new backlog items and new sprint. What should I do with backlog item and velocity graph? Obviously backlog item is not resolved on that sprint. Should I estimate the remaining work and subtract it from effort , so that now I see that our velocity is, say, 38hr per 40hr sprint?

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• YouSendIt Alternative?

  - by WuckaChucka

  Looking for a reasonably priced alternative to YouSendIt's exorbitant pricing for an embedded, unbranded (i.e. no "Uploads by SomeCompany" or at the very least, discrete, subtle co-branding) file upload solution for my client's print shop Website. To do what we want to do with YouSendIt, we're looking at a corporate account of $995 USD plus $29.99 USD monthly fee, that is only sold pro-rated, so you have to buy the entire year's worth. To me, this is just unacceptable considering the commodity pricing of storage and bandwidth nowadays. For data, we're looking at roughly 10MB per upload, with perhaps 250-1000 uploads per month, with transient data storage of no more than 30 days (and more than likely 1-2 business days) for a total of 10 GB transfer (upload) and 10 GB transfer (download, to the print shop) at the very max each month. Any ideas? Everything I've found through searching seems to be geared more towards personal file sharing and not for embedding into Websites. Thanks

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• What is a fast way to darken the vertices I'm rendering?

  - by Luis Cruz

  To make a lighting system for a voxel game, I need to specify a darkness value per vertex. I'm using GL_COLOR_MATERIAL and specifying a color per vertex, like this: glEnable(GL_COLOR_MATERIAL); glBegin(GL_QUADS); glColor3f(0.6f, 0.6f, 0.6f); glTexCoord2f(...); glVertex3f(...); glColor3f(0.3f, 0.3f, 0.3f); glTexCoord2f(...); glVertex3f(...); glColor3f(0.7f, 0.7f, 0.7f); glTexCoord2f(...); glVertex3f(...); glColor3f(0.9f, 0.9f, 0.9f); glTexCoord2f(...); glVertex3f(...); glEnd(); This is working, but with many quads it is very slow.. I'm using display lists too. Any good ideas in how to make vertices darker?

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• How to implement an email unsubscribe system for a site with many kinds of emails?

  - by Mike Liu

  I'm working on a website that features many different types of emails. Users have accounts, and when logged in they have access to a setting page that they can use to customize what types of emails they receive. However, I'd like to also give users an easy way to unsubscribe directly in the emails they receive. I've looked into list unsubscribe headers as well as creating some type of one click link that would unsubscribe a user from that type of email without requiring login or further action. The later would probably require me to break convention and make changes to the database in response to a GET on the link. However, am I incorrect in thinking that either of these would require me to generate and permanently store a unique identifier in my database for every email I ever send, really complicating email delivery? Without that, I'm not sure how I would be able to uniquely identify a user and a type of email in order to change their email preferences, and this identifier would need to be stored forever as a user could have an email sitting in their inbox for a long time before they decide to act on it. Alternatively, I was considering having a no-login page for managing email preferences. In contrast to above where I would need one of these identifiers for each email, this would only need one identifier per user, with no generation or other action required on sending an email. All of these raise security issues, and they could potentially be used by people to tamper with others' email preferences. This could be mitigated somewhat by ensuring that the identifier is really difficult to guess. For the once per user identifier approach, I was considering generating the identifier by passing a user's ID through some type of encryption algorithm, is this a sound approach? For the per-email identifiers, perhaps I could use a user's ID appended to the time. However, even this would not eliminate the problem entirely, as this would really just be security through obscurity, and anyone with the URL could tamper, and in the end the main defense would have to be that most people aren't so bored as to tamper with other people's email preferences. Are there any other alternatives I've missed, or issues or solutions with these that anyone can provide insight on? What are best practices in this area?

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• Kamal Osman Jamjoom on deploying Oracle Retail solutions

  - by user801960

  Kamal Osman Jamjoom Group (KOJ) is one of the most established retail groups in the Middle East operating over 500 stores, six franchise brands and two highly successful private labels. KOJ’s Chief Financial Officer and Group Financial Director, Richard Winsor, recently presented at the Oracle Retail Industry Day in Dubai and took some time to share with us his experiences of implementing and using Oracle Retail. Having first gone live with Oracle Retail in March 2008, KOJ has used, upgraded and added to their Oracle Retail foundation, most recently deploying Oracle Retail Planning applications. The business has seen strong benefits around consistency of data, low integration costs and scalability, particularly in supporting its rapid expansion programme around the region. Take a look at Richard’s advice for retailers looking to deploy Oracle Retail and how they can benefit from the KOJ implementation programme.

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• Oracle 12cR1 : Evaluación "What-If" de un comando crsctl con Oracle Clusterware

  - by grantunez-Oracle

  Oracle en su nueva version 12cR1 introdujo una nueva y pequeña característica  al Oracle Clusterware, pero el que sea pequeña, no significa que no sea de gran utilidad. En versiones anteriores, si queríamos saber que iba a pasar al ejecutar un comando con la herramienta crsctl, teníamos que hacerlo en un ambiente de pruebas, ya que si no sabíamos de que se trataba el comando, se convertía en algo muy peligroso hacerlo sobre producción. En Oracle Clusterware 12cR1 se introduce la evaluación de comando tipo "What-If" en la herramienta mencionada anteriormente, crsctl eval, que lo que nos permite es ver , que va a suceder si ejecuta el comando, sin que realmente se ejecute el comando. Primero vamos a ver que recursos tenemos arriba  [oracle@oel6-112-rac1 ~]$ crsctl stat res -t--------------------------------------------------------------------------------Name           Target  State        Server                   State details       --------------------------------------------------------------------------------Local Resources--------------------------------------------------------------------------------ora.ASMNET1LSNR_ASM.lsnr               ONLINE  ONLINE       oel6-112-rac1            STABLE               ONLINE  ONLINE       oel6-112-rac2            STABLEora.DATA.dg               ONLINE  ONLINE       oel6-112-rac1            STABLE               ONLINE  ONLINE       oel6-112-rac2            STABLEora.LISTENER.lsnr               ONLINE  ONLINE       oel6-112-rac1            STABLE               ONLINE  ONLINE       oel6-112-rac2            STABLEora.net1.network               ONLINE  ONLINE       oel6-112-rac1            STABLE               ONLINE  ONLINE       oel6-112-rac2            STABLEora.ons               ONLINE  ONLINE       oel6-112-rac1            STABLE               ONLINE  ONLINE       oel6-112-rac2            STABLEora.proxy_advm               ONLINE  ONLINE       oel6-112-rac1            STABLE               ONLINE  OFFLINE      oel6-112-rac2            CLEANINGora.LISTENER_SCAN1.lsnr      1        ONLINE  ONLINE       oel6-112-rac2            STABLEora.LISTENER_SCAN2.lsnr      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.LISTENER_SCAN3.lsnr      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.MGMTLSNR      1        ONLINE  ONLINE       oel6-112-rac1            169.254.247.50 192.1                                                             68.1.111,STABLEora.asm      1        ONLINE  ONLINE       oel6-112-rac1            STABLE      2        ONLINE  ONLINE       oel6-112-rac2            STABLE      3        OFFLINE OFFLINE                               STABLEora.cvu      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.gns      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.gns.vip      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.mgmtdb      1        ONLINE  ONLINE       oel6-112-rac1            Open,STABLEora.oc4j      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.oel6-112-rac1.vip      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.oel6-112-rac2.vip      1        ONLINE  ONLINE       oel6-112-rac2            STABLEora.orcl.db      1        OFFLINE OFFLINE      oel6-112-rac2            Instance Shutdown,STABLE       2        ONLINE  ONLINE       oel6-112-rac1            Open,STABLEora.scan1.vip      1        ONLINE  ONLINE       oel6-112-rac2            STABLEora.scan2.vip      1        ONLINE  ONLINE       oel6-112-rac1            STABLEora.scan3.vip      1        ONLINE  ONLINE       oel6-112-rac1            STABLE Ahora lo que vamos a hacer , es evaluar que pasaría, si por ejemplo, el recurso de ASM llegara a fallar en nuestro nodo [oracle@oel6-112-rac1 ~]$ crsctl eval fail resource ora.asm Stage Group 1: -------------------------------------------------------------------------------- Stage Number Required Action --------------------------------------------------------------------------------      1    N Create new group (Stage Group = 2)    Y Resource 'ora.asm' (1/1) will be in state [ONLINE|INTERMEDIATE] on server [oel6-112-rac1]    Y Resource 'ora.asm' (2/1) will be in state [ONLINE|INTERMEDIATE] on server [oel6-112-rac2] -------------------------------------------------------------------------------- Stage Group 2: -------------------------------------------------------------------------------- Stage Number Required Action --------------------------------------------------------------------------------      1    N Resource 'ora.proxy_advm' (oel6-112-rac2) will be in state [ONLINE|INTERMEDIATE] on server [oel6-112-rac2] --------------------------------------------------------------------------------  Como vamos a ver a continuación, no es lo mismo se decidiéramos detener el recurso, en este caso tenemos que forzarlo , ya que es un recurso que no se puede detener sin la opción "-f":  [oracle@oel6-112-rac1 ~]$ crsctl eval stop resource ora.asm Stage Group 1: -------------------------------------------------------------------------------- Stage Number Required Action --------------------------------------------------------------------------------      1    N Error code [222] for entity [ora.asm]. Message is [CRS-2529: Unable to act on 'ora.asm' because that would require stopping or relocating 'ora.DATA.dg', but the force option was not specified]. -------------------------------------------------------------------------------- [oracle@oel6-112-rac1 ~]$ crsctl eval stop resource ora.asm -f Stage Group 1: -------------------------------------------------------------------------------- Stage Number Required Action --------------------------------------------------------------------------------      1    Y Resource 'ora.DATA.dg' (oel6-112-rac1) will be in state [OFFLINE]    Y Resource 'ora.DATA.dg' (oel6-112-rac2) will be in state [OFFLINE]    Y Resource 'ora.orcl.db' (2/1) will be in state [OFFLINE]    Y Resource 'ora.proxy_advm' (oel6-112-rac1) will be in state [OFFLINE]      2    Y Resource 'ora.asm' (1/1) will be in state [OFFLINE]    Y Resource 'ora.asm' (2/1) will be in state [OFFLINE] --------------------------------------------------------------------------------  Como puedes ver, es una característica nueva y pequeña, pero bastante util para evaluar todos tus comandos de crsctl sin impactar a ninguno de tus recursos. Así te permitira valorar el impacto que tendra el comando que vas a ejecutar. Puedes encontrar mas información en: Utilizando el comando eval

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