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  • Recap: Oracle at the Gartner Business Intelligence Summit

    - by kimberly.billings
    Getting to Vegas was no fun. As anyone who lives in the Bay Area knows, the SF airport shuts down one runway when it rains, causing major havoc. So rain, rain, rain on Sunday meant delay, delay, delay at the airport. Needless to say, my 6:30 pm flight didn't land in Vegas until 3:00 am! But the travel pains were worth it. There was a lot to be learned at the Gartner BI Summit this year, and the uptick in attendance was reflected in strong booth traffic and engaging conversations in the Oracle booth. Oracle customer, Dawn Conant, Director, Business Intelligence at Beckman Coulter, generated a lot of interest in her presentation about migrating from Business Objects to Oracle Business Intelligence, Enterprise Edition with Oracle Database 11g. Dawn's story was a very relatable one, as many of the attendees had plans for similar projects. One of the most interesting Gartner-led sessions compared BI/DW megavendors, IBM, Oracle, SAP and Microsoft. According to Gartner analyst Rita Sallam, these megavendors control about two-thirds of the BI market. Sallem attributes this in part to the fact that organizations are expanding their definitions of BI to also include analytics and performance management. In doing so, they require greater integration of BI applications with a broader set of applications and middleware. In a related session, a panel of Gartner analysts compared the Magic Quadrants for BI Platforms; CPM; Data Quality; Data Integration Tools; and Data Warehouses. Oracle is a leader in all of the Magic Quadrants in which it participates and has the most complete stack including hardware and software, according to Donald Feinberg. Feinberg also commented that in situations with VLDW and solid mixed workloads, Oracle Exadata is making a big difference! var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); try { var pageTracker = _gat._getTracker("UA-13185312-1"); pageTracker._trackPageview(); } catch(err) {}

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  • Say goodbye to System.Reflection.Emit (any dynamic proxy generation) in WinRT

    - by mbrit
    tl;dr - Forget any form of dynamic code emitting in Metro-style. It's not going to happen.Over the past week or so I've been trying to get Moq (the popular open source TDD mocking framework) to work on WinRT. Irritatingly, the day before Release Preview was released it was actually working on Consumer Preview. However in Release Preview (RP) the System.Reflection.Emit namespace is gone. Forget any form of dynamic code generation and/or MSIL injection.This kills off any project based on the popular Castle Project Dynamic Proxy component, of which Moq is one example. You can at this point in time not perform any form of mocking using dynamic injection in your Metro-style unit testing endeavours.So let me take you through my journey on this, so that other's don't have to...The headline fact is that you cannot load any assembly that you create at runtime. WinRT supports one Assembly.Load method, and that takes the name of an assembly. That has to be placed within the deployment folder of your app. You cannot give it a filename, or stream. The methods are there, but private. Try to invoke them using Reflection and you'll be met with a caspol exception.You can, in theory, use Rotor to replace SRE. It's all there, but again, you can't load anything you create.You can't write to your deployment folder from within your Metro-style app. But, can you use another service on the machine to move a file that you create into the deployment folder and load it? Not really.The networking stack in Metro-style is intentionally "damaged" to prevent socket communication from Metro-style to any end-point on the local machine. (It just times out.) This militates against an approach where your Metro-style app can signal a properly installed service on the machine to create proxies on its behalf. If you wanted to do this, you'd have to route the calls through a C&C server somewhere. The reason why Microsoft has done this is obvious - taking out SRE know means they don't have to do it in an emergency later. The collateral damage in removing SRE is that you can't do mocking in test mode, but you also can't do any form of injection in production mode. There are plenty of reasons why enterprise apps might want to do this last point particularly. At CP, the assumption was that their inspection tools would prevent SRE being used as a malware vector - it now seems they are less confident about that. (For clarity, the risk here is in allowing a nefarious program to download instructions from a C&C server and make up executable code on the fly to run, getting around the marketplace restrictions.)So, two things:- System.Reflection.Emit is gone in Metro-style/WinRT. Get over it - dynamic, on-the-fly code generation is not going to to happen.- I've more or less got a version of Moq working in Metro-style. This is based on the idea of "baking" the dynamic proxies before you use them. You can find more information here: https://github.com/mbrit/moqrt

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  • Diagnosing the problem when Canon printer fails to print under Ubuntu

    - by MMA
    I understand that the issue of Canon printer under Linux has a number of posts. Actually one of these, was started by me. After inputs from others I have successfully printed using Canon LBP6000 from my Ubuntu machine for around a year. If it failed to print, restarting the daemon using this homemade script coaxed the printer to print. #!/bin/bash pkill -9 -x ccpd pkill -9 -x captmoncnabc /etc/init.d/ccpd start /etc/init.d/ccpd status Recently, I am not successful any more, or successful on a limited and sporadic basis. Sometimes it prints when turned on after logging in, sometimes when the driver is reinstalled. I keep on trying the random steps (call abracadabras) until I get success. Again, not always success comes. I frustrate on for hours only to get single page printed. I loose precious time on the issue of printing. I have read and read all the documents available over the Internet. However, if you please notice, none of the guides, articles, tutorials (these are too many to list here) seem to be dealing with diagnosing the problem when it fails to print. They tell you where to find the drivers, how to install them, or which script to run to make the installation process automatic. Yes, some of the articles or comments suggest a step to try, without any systematic order. But these fail to suggest a step based on symptoms, mostly. This morning, my Canon LBP6000 failed to print. After sometime, there was a message for system error, details of which was found to be something like this. When I search for this error (c3pldrv crashed with SIGSEGV in write ()), I find a number of articles including this one. None of these are actually helpful. Mostly, these are 'me too', 'tell me if you find anything'. Running captstatusui -P LBP6000 produced this, Yes, the printer is connected and actually turned on. I believe that there a number of frustrated Canon printer users out there like me. But there is not a step by step definitive guide to systematically diagnose a non-printing printer. Do you think that you can provide your diagnosing inputs so that a systematic document can be built? May be we will want the Ubuntu users to stay away from Canon printers. But as I believe, as a Linux user for more than fifteen years, such a scenario is not acceptable any more. May be this was acceptable in the infancy days of Linux, but not today. I am using Ubuntu 12.04, by the way, I prefer LTS versions.

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  • Textures do not render on ATI graphics cards?

    - by Mathias Lykkegaard Lorenzen
    I'm rendering textured quads to an orthographic view in XNA through hardware instancing. On Nvidia graphics cards, this all works, tested on 3 machines. On ATI cards, it doesn't work at all, tested on 2 machines. How come? Culling perhaps? My orthographic view is set up like this: Matrix projection = Matrix.CreateOrthographicOffCenter(0, graphicsDevice.Viewport.Width, -graphicsDevice.Viewport.Height, 0, 0, 1); And my elements are rendered with the Z-coordinate 0. Edit: I just figured out something weird. If I do not call this spritebatch code above doing my textured quad rendering code, then it won't work on Nvidia cards either. Could that be due to culling information or something like that? Batch.Instance.SpriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, SamplerState.LinearClamp, DepthStencilState.Default, RasterizerState.CullNone); ... spriteBatch.End(); Edit 2: Here's the full code for my instancing call. public void DrawTextures() { Batch.Instance.SpriteBatch.Begin(SpriteSortMode.Texture, BlendState.AlphaBlend, SamplerState.LinearClamp, DepthStencilState.Default, RasterizerState.CullNone, textureEffect); while (texturesToDraw.Count > 0) { TextureJob texture = texturesToDraw.Dequeue(); spriteBatch.Draw(texture.Texture, texture.DestinationRectangle, texture.TintingColor); } spriteBatch.End(); #if !NOTEXTUREINSTANCING // no work to do if (positionInBufferTextured > 0) { device.BlendState = BlendState.Opaque; textureEffect.CurrentTechnique = textureEffect.Techniques["Technique1"]; textureEffect.Parameters["Texture"].SetValue(darkTexture); textureEffect.CurrentTechnique.Passes[0].Apply(); if ((textureInstanceBuffer == null) || (positionInBufferTextured > textureInstanceBuffer.VertexCount)) { if (textureInstanceBuffer != null) textureInstanceBuffer.Dispose(); textureInstanceBuffer = new DynamicVertexBuffer(device, texturedInstanceVertexDeclaration, positionInBufferTextured, BufferUsage.WriteOnly); } if (positionInBufferTextured > 0) { textureInstanceBuffer.SetData(texturedInstances, 0, positionInBufferTextured, SetDataOptions.Discard); } device.Indices = textureIndexBuffer; device.SetVertexBuffers(textureGeometryBuffer, new VertexBufferBinding(textureInstanceBuffer, 0, 1)); device.DrawInstancedPrimitives(PrimitiveType.TriangleStrip, 0, 0, textureGeometryBuffer.VertexCount, 0, 2, positionInBufferTextured); // now that we've drawn, it's ok to reset positionInBuffer back to zero, // and write over any vertices that may have been set previously. positionInBufferTextured = 0; } #endif }

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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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  • Keeping up with New Releases

    - by Jeremy Smyth
    You can keep up with the latest developments in MySQL software in a number of ways, including various blogs and other channels. However, for the most correct (if somewhat dry and factual) information, you can go directly to the source.  Major Releases  For every major release, the MySQL docs team creates and maintains a "nutshell" page containing the significant changes in that release. For the current GA release (whatever that is) you'll find it at this location: https://dev.mysql.com/doc/mysql/en/mysql-nutshell.html  At the moment, this redirects to the summary notes for MySQL 5.6. The notes for MySQL 5.7 are also available at that website, at the URL http://dev.mysql.com/doc/refman/5.7/en/mysql-nutshell.html, and when eventually that version goes GA, it will become the currently linked notes from the URL shown above. Incremental Releases  For more detail on each incremental release, you can have a look at the release notes for each revision. For MySQL 5.6, the release notes are stored at the following location: http://dev.mysql.com/doc/relnotes/mysql/5.6/en/ At the time I write this, the topmost entry is a link for MySQL 5.6.15. Each linked page shows the changes in that particular version, so if you are currently running 5.6.11 and are interested in what bugs were fixed in versions since then, you can look at each subsequent release and see all changes in glorious detail. One really clever thing you can do with that site is do an advanced Google search to find exactly when a feature was released, and find out its release notes. By using the preceding link in a "site:" directive in Google, you can search only within those pages for an entry. For example, the following Google search shows pages within the release notes that reference the --slow-start-timeout option:     site:http://dev.mysql.com/doc/relnotes/mysql/ "--slow-start-timeout" By running that search, you can see that the option was added in MySQL 5.6.5 and also rolled into MySQL 5.5.20.   White Papers Also, with each major release you can usually find a white paper describing what's new in that release. In MySQL 5.6 there was a "What's new" whitepaper at this location: http://www.mysql.com/why-mysql/white-papers/whats-new-mysql-5-6/ You'll find other white papers at: http://www.mysql.com/why-mysql/white-papers/ Search the page for "5.6" to see any papers dealing specificallly with that version.

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  • Advice for moving from custom domain hosted on blogspot to new custom domain on hosting provider [closed]

    - by Chan
    Need some advice :) a) Facts: 1. Currently, we have a blog www.thebigbigsky.net hosted on blogspot.com. The site has been up for around a year and google had cached some of the posts. 2. The idea for setting up the blog was to promote/share articles/write-up about personal development and self-growth, and also to offer counseling services related to them. 3. There is another subdomain - chinese.thebigbigsky.net hosting similar blog posts but in Chinese. This is hosted on blogspot as well. b) What we want to do: 1. We did some research on the internet and understood that, to make a website more popular, it is better to have a domain name that is related to the content of the site. Hence, in our case, a domain name containing "personal development" would be more ideal and easier for people to remember. 2. Hence, we are thinking to move away from blogspot to a meaningful new domain (example: personaldevelopmentwithxyz.com) and move all contents there. The new domain will be hosted on a hosting provider e.g. hostgator.com c) Here are the steps we have in mind: 1. Register the new domain (example: personaldevelopmentwithxyz.com) 2. Get a hosting provider hostgator.com 3. Setup a new site based on Wordpress, import all contents from existing blog to this new site - personaldevelopmentwithxyz.com. 4. Switch current blog back to thebigbigsky.blogspot.com 5. Switch DNS of www.thebigbigsky.net to point to the new site on hostgator.com 6. On hostgator.com, setup permanent redirect 301 of www.thebigbigsky.net to point to personaldevelopmetnwithxyz.com by following the tutorial mentioned here - http://www.blogbloke.com/migrating-redirecting-blogger-wordpress-htaccess-apache-best-method/ Questions: 1. Will it have major impact on the current google pagerank or SEO of thebigbigsky.net? As the site is not that popular, we assumed that the impact would not be a major one. 2. Is the domain personaldevelopmentwithxyz.com considered too long? (For SEO etc) 3. Steps c.4 and c.5 above - Will this work for our case? 4. How about the subdomain - chinese.thebigbigsky.net? We would like keep it as separate blog with the domain e.g. chinese.personaldevelopmentwithxyz.com 5. We added "facebook comments" to the existing post on www.thebigtbigsky.net and would not want to lose it. Will the comments still be there after we moved to the new domain? 6. Any better idea to do it? :) Thank you very much! regards, -chan

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  • Should I be put off a junior role that uses an online development test?

    - by Ninefingers
    I've applied for a junior development role, or rather been found by a recruiter looking for a developer. In order to get to a telephone interview stage I've been asked to sit one of those online coding assessments. This wasn't quite what I expected. I consider myself a fairly good developer for my age and experience, but I've no illusions about being Don Knuth or anything. The test was a series of incredibly obtuse questions asking about the results of various obscure evaluations. About 30 minutes in I was thinking to myself I hadn't intended to enter an obfuscated code contest/code golf exercise. After my last telephone interview I was asked to build something. I did. That seemed fair. Go away and work this out is more my in office experience of programming than "please evaluate this combination of lambdas, filters, maps, lists, tuples etc". So I'm a little put off, to be honest. I never claimed to know the language inside out or all the little corner cases. My questions, then: Should I be put off? Why? Why not? Are these kinds of tests what I should be expecting for junior roles? Should I learn stuff exam style? That seems to be the objective of these tests, for which you are timed and not supposed to use references or books? Normally, in the course of development I have a fairly good idea of basic types, rules, flow control and whatever. Occasionally I'll come up on something I need to use a regex for and have to go and remind myself of the exact piece of syntax I need if trying what I think should work doesn't. Or I'll come up against a module I've not used before and go and look it up. For example, if I wanted to write a server using sockets in C right now, I'd probably check the last piece of code I wrote doing that (and or the various books I have) and work from there. Chances are I probably couldn't do it exactly from scratch and from memory, although I can tell you you'd need a socket(), bind(), listen() and accept() call and you might also want select() depending on whether you intend to pthread_create or not. So I know what the calls are, but not their specific parameter list. What are your experiences if you are a recruiting manager? Are you after programmers who can quote you the API or do you not mind if your programmers have a few books on their desk and google function calls every so often?

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  • Back-sliding into Unmanaged Code

    - by Laila
    It is difficult to write about Microsoft's ambivalence to .NET without mentioning clichés about dog food.  In case you've been away a long time, you'll remember that Microsoft surprised everyone with the speed and energy with which it introduced and evangelised the .NET Framework for managed code. There was good reason for this. Once it became obvious to all that it had sleepwalked into third place as a provider of development languages, behind Borland and Sun, it reacted quickly to attract the best talent in the industry to produce a windows version of the Java runtime, with Bounds-checking, Automatic Garbage collection, structures exception handling and common data types. To develop applications for this managed runtime, it produced several excellent languages, and more are being provided. The only thing Microsoft ever got wrong was to give it a stupid name. The logical step for Microsoft would be to base the entire operating system on the .NET framework, and to re-engineer its own applications. In 2002, Bill Gates, then Microsoft Chairman and Chief Software Architect said about their plans for .NET, "This is a long-term approach. These things don't happen overnight." Now, eight years later, we're still waiting for signs of the 'long-term approach'. Microsoft's vision of an entirely managed operating system has subsided since the Vista fiasco, but stays alive yet dormant as Midori, still being developed by Microsoft Research. This is an Internet-centric fork of the singularity operating system, a research project started in 2003 to build a highly-dependable operating system in which the kernel, device drivers, and applications are all written in managed code. Midori is predicated on the prevalence of connected systems, with provisions for distributed concurrency where application components exist 'in the cloud', and supports a programming model that can tolerate cancellation, intermittent connectivity and latency. It features an entirely new security model that sandboxes applications for increased security. So have Microsoft converted its existing applications to the .NET framework? It seems not. What Windows applications can run on Mono? Very few, it seems. We all thought that .NET spelt the end of DLL Hell and the need for COM interop, but it looks as if Bill Gates' idea of 'not overnight' might stretch to a decade or more. The Operating System has shown only minimal signs of migrating to .NET. Even where the use of .NET has come to dominate, when used for server applications with IIS, IIS itself is still entirely developed in unmanaged code. This is an irritation to Microsoft's greatest supporters who committed themselves fully to the NET framework, only to find parts of the Ambivalent Microsoft Empire quietly backsliding into unmanaged code and the awful C++. It is a strategic mistake that the invigorated Apple didn't make with the Mac OS X Architecture. Cheers, Laila

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  • Why lock statements don't scale

    - by Alex.Davies
    We are going to have to stop using lock statements one day. Just like we had to stop using goto statements. The problem is similar, they're pretty easy to follow in small programs, but code with locks isn't composable. That means that small pieces of program that work in isolation can't necessarily be put together and work together. Of course actors scale fine :) Why lock statements don't scale as software gets bigger Deadlocks. You have a program with lots of threads picking up lots of locks. You already know that if two of your threads both try to pick up a lock that the other already has, they will deadlock. Your program will come to a grinding halt, and there will be fire and brimstone. "Easy!" you say, "Just make sure all the threads pick up the locks in the same order." Yes, that works. But you've broken composability. Now, to add a new lock to your code, you have to consider all the other locks already in your code and check that they are taken in the right order. Algorithm buffs will have noticed this approach means it takes quadratic time to write a program. That's bad. Why lock statements don't scale as hardware gets bigger Memory bus contention There's another headache, one that most programmers don't usually need to think about, but is going to bite us in a big way in a few years. Locking needs exclusive use of the entire system's memory bus while taking out the lock. That's not too bad for a single or dual-core system, but already for quad-core systems it's a pretty large overhead. Have a look at this blog about the .NET 4 ThreadPool for some numbers and a weird analogy (see the author's comment). Not too bad yet, but I'm scared my 1000 core machine of the future is going to go slower than my machine today! I don't know the answer to this problem yet. Maybe some kind of per-core work queue system with hierarchical work stealing. Definitely hardware support. But what I do know is that using locks specifically prevents any solution to this. We should be abstracting our code away from the details of locks as soon as possible, so we can swap in whatever solution arrives when it does. NAct uses locks at the moment. But my advice is that you code using actors (which do scale well as software gets bigger). And when there's a better way of implementing actors that'll scale well as hardware gets bigger, only NAct needs to work out how to use it, and your program will go fast on it's own.

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  • ObjectStorageHelper<T> now available for Windows 8 RTM

    - by jamiet
    In October 2011 I wrote a blog post entitled ObjectStorageHelper<T> – A WinRT utility for Windows 8 where I introduced a little utility class called ObjectStorageHelper<T> that I had been working on while noodling around on the Developer Preview of Windows 8. ObjectStorageHelper<T> makes it easy for anyone building apps for Windows 8 to save data to files. How easy? As easy as this: var myPoco = new Poco() { IntProp = 1, StringProp = "one" }; var objectStorageHelper = new ObjectStorageHelper<Poco>(StorageType.Local); await objectStorageHelper.SaveAsync(myPoco); Compare that to the plumbing code that you would have to write otherwise: var Obj = new Poco() { IntProp = 1, StringProp = "one" }; StorageFile file = null; StorageFolder folder = GetFolder(storageType); file = await folder.CreateFileAsync(FileName(Obj), CreationCollisionOption.ReplaceExisting); IRandomAccessStream writeStream = await file.OpenAsync(FileAccessMode.ReadWrite); using (Stream outStream = Task.Run(() => writeStream.AsStreamForWrite()).Result) {     serializer.Serialize(outStream, Obj);     await outStream.FlushAsync(); } and you can see how ObjectStorageHelper<T> can help save a Windows 8 developer quite a few headaches. ObjectStorageHelper<T> simply requires you to pass it an object to be saved, tell it where to save it (Roaming, Local or Temporary), and you’re done. Retrieving an object from storage is equally as simple: var objectStorageHelper = new ObjectStorageHelper<Poco>(StorageType.Local); var myPoco = await objectStorageHelper.LoadAsync(); Please check the homepage for the project at http://winrtstoragehelper.codeplex.com/ for (much) more info. A number of people have used and tested ObjectStorageHelper<T> since those early days and one of those folks in particular, David Burela, was good enough to report a couple of bugs: Saving Asynchronously Save fails when class is in another project As a result of David’s bug reports and some more extensive testing on my side I have overhauled the initial code that I wrote last October and am confident that it is now much more robust and ready for primetime (check the commit history if you’re interested). The source code (which, again, you can find on Codeplex at http://winrtstoragehelper.codeplex.com/) includes a suite of unit tests to test all of the basic use cases (if you can think of any more please let me know). If you use this in any of your Windows 8 projects then please let me know. I love getting feedback and I’d also love to know if this is actually being used anywhere. @Jamiet

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  • Hey You! Stop Using the Apply Button and Just Click OK! [Geek Rants]

    - by The Geek
    As a computer geek, I often find myself helping people, and watching them change settings on their PC… and they almost always click the Apply button, and then the OK button. Why? Whenever you encounter a dialog box in Windows, there are the standard OK, Cancel, Apply buttons—but you don’t actually have to click the Apply button first. The OK button does the same thing, saves the settings, and then closes the dialog box… saving you an extra click. Don’t believe me? Try it out for yourself. Only the worst possible application won’t behave that way, and you probably don’t want to use that type of application to begin with. The only exception to this rule is a multiple tab dialog box, on a badly written application. Sometimes… your settings on one tab won’t stick unless you click Apply. Note that in this particular case, you can make changes in any one of the tabs, and they will carry through without having to click Apply, because this dialog window is well written. We’re just using the screenshot as an example of a multiple tab setting interface. So now that you know better, you can tell us… do you always use the Apply button first? Have you ever found an instance where it behaves differently? Similar Articles Productive Geek Tips Got Awesome Skills? Why Not Write for How-To Geek?Customize Your Windows Vista Logon ScreenUse Outlook Rules to Prevent "Oh No!" After Sending EmailsGot Awesome Geek Skills? The How-To Geek is Looking for WritersQuick Firefox UI Tweaks TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Recycle ! Find That Elusive Icon with FindIcons Looking for Good Windows Media Player 12 Plug-ins? Find Out the Celebrity You Resemble With FaceDouble Whoa ! Use Printflush to Solve Printing Problems

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  • Beginning with first project on game development [closed]

    - by Tsvetan
    Today is the day I am going to start my first real game project. It will be a Universe simulator. Basically, you can build anything from tiny meteor to quazars and universes. It is going to be my project for an olympiad in IT in my country and I really want to make it perfect(at least a bronze medal). So, I would like to ask some questions about organization and development methodologies. Firstly, my plan is to make a time schedule. In it I would write my plans for the next month or two(because that is the time I have). With this exact plan I hope to make my organisation at its best. Of course, if I am doing sth faster than the schedule I would involve more features for the game and/or continue with the tempo I have. Also, for the organisation I would make a basic pseudocode(maybe) and just rewrite it so it is compilable. Like a basic skeleton of everything. The last is an idea I tought of in the moment, but if it is good I will use it. Secondly, for the development methodologies, obviously, I think of making object-oriented code and make everything perfect(a lot of testing, good code, documentation etc.). Also, I am going to make my own menu system(I read that OpenGL hasn't got very good one). Maybe I would implement it with an xml file, holding the info about position of buttons, text boxes, images and everything. Maybe I would do a specific CSS for it and so on. I think that is very good way of doing the menu system, because it makes the presentation layer separate of the logic. But, if there is a better way, I would do it the better way. For the logic, well, I don't have much to say. OO code, testing, debuging, good and fast algorithms and so on. Also, a good documentation must be written and this is the area I need to make some research in. I think that is for now. I hope I have been enough descriptive. If more questions come on my mind, I will ask them. Edit: I think of blogging every part of the project, or at least writing down everything in a file or something like that. My question is: Is my plan of how to do everything around the project good? And if not, what is necessary to be improved and what other things I can involve for making the project good.

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  • How to shoot a triangle out of an asteroid which floats all of the way up to the screen?

    - by Holland
    I currently have an asteroid texture loaded as my "test player" for the game I'm writing. What I'm trying to figure out how to do is get a triangle to shoot from the center of the asteroid, and keep going until it hits the top of the screen. What happens in my case (as you'll see from the code I've posted), is that the triangle will show, however it will either be a long line, or it will just be a single triangle which stays in the same location as the asteroid moving around (that disappears when I stop pressing the space bar), or it simply won't appear at all. I've tried many different methods, but I could use a formula here. All I'm trying to do is write a space invaders clone for my final in C#. I know how to code fairly well, my formulas just need work is all. So far, this is what I have: Main Logic Code protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(ClearOptions.Target, Color.Black, 1, 1); mAsteroid.Draw(mSpriteBatch); if (mIsFired) { mPositions.Add(mAsteroid.LastPosition); mRay.Fire(mPositions); mIsFired = false; mRay.Bullets.Clear(); mPositions.Clear(); } base.Draw(gameTime); } Draw Code public void Draw() { VertexPositionColor[] vertices = new VertexPositionColor[3]; int stopDrawing = mGraphicsDevice.Viewport.Width / mGraphicsDevice.Viewport.Height; for (int i = 0; i < mRayPos.Length(); ++i) { vertices[0].Position = new Vector3(mRayPos.X, mRayPos.Y + 5f, 10); vertices[0].Color = Color.Blue; vertices[1].Position = new Vector3(mRayPos.X - 5f, mRayPos.Y - 5f, 10); vertices[1].Color = Color.White; vertices[2].Position = new Vector3(mRayPos.X + 5f, mRayPos.Y - 5f, 10); vertices[2].Color = Color.Red; mShader.CurrentTechnique.Passes[0].Apply(); mGraphicsDevice.DrawUserPrimitives<VertexPositionColor>(PrimitiveType.TriangleStrip, vertices, 0, 1); mRayPos += new Vector2(0, 1f); mGraphicsDevice.ReferenceStencil = 1; } }

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  • Help for choosing a cost effective game server for Flash client

    - by Sapots Thomas
    I am developing a flash-based game primarily for desktops, to be hosted on facebook platform (like cityville, sims social etc). The gameplay doesn't involve real-time communication between players unlike an mmorpg. Here each player plays in his own world without any knowledge of other online players. I've written almost 95% of the game logic in actionscript on the client side. I used Smartfox Server pro on the server side (mostly used for getting data from the DB) and the entire server code is an extension written in java. I'm using json as the protocol for communication. Although I love smartfox server, as an indie, its tough for me to afford the unlimited users license. Morever its limited just to one machine. So I'm looking for an alternative to smartfox server now. The reason for choosing smartfox server earlier was to use the server properties supported by it. Server properties on smartfox server take advantage of the socket connection and are essentially server side objects in java which store some data for the player which he can change frequently during the game. And when he logs out of the game, the extension can write out the final state in the DB (I'm using MySQL). This significantly reduces the number of DB UPDATE/INSERT calls made during the game. I love the way this works since the data is secure as its on the server side and smartfox server is known to be scalable. (although I'm not sure whether this approach is used widely by gaming industry or not, since this is not an mmorpg, I'm putting all player in the lobby). So my question is whether any of the free and community supported servers like reddwarf, firebase, BlazeDS etc can provide a similar architecture so that I can use server properties without many code changes? EDIT : I am not insisting on the exact same feature (thats asking too much!), but atleast a viable messaging system on the server so that I can send actionscript objects from the client using json/binary so that its fast. OR maybe some completely different way to implement what I need here. Thanks in advance.

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  • JWT Token Security with Fusion Sales Cloud

    - by asantaga
    When integrating SalesCloud with a 3rd party application you often need to pass the users identity to the 3rd party application so that  The 3rd party application knows who the user is The 3rd party application needs to be able to do WebService callbacks to Sales Cloud as that user.  Until recently without using SAML, this wasn't easily possible and one workaround was to pass the username, potentially even the password, from Sales Cloud to the 3rd party application using URL parameters.. With Oracle Fusion R8 we now have a proper solution and that is called "JWT Token support". This is based on the industry JSON Web Token standard , for more information see here JWT Works by allowing the user the ability to generate a token (lasts a short period of time) for a specific application. This token is then passed to the 3rd party application as a GET parameter.  The 3rd party application can then call into SalesCloud and use this token for all webservice calls, the calls will be executed as the user who generated the token in the first place, or they can call a special HR WebService (UserService-findSelfUserDetails() ) with the token and Fusion will respond with the users details. Some more details  The following will go through the scenario that you want to embed a 3rd party application within a WebContent frame (iFrame) within the opportunity screen.  1. Define your application using the topology manager in setup and maintenance  See this documentation link on topology manager 2. From within your groovy script which defines the iFrame you wish to embed, write some code which looks like this : def thirdpartyapplicationurl = oracle.topologyManager.client.deployedInfo.DeployedInfoProvider.getEndPoint("My3rdPartyApplication" )def crmkey= (new oracle.apps.fnd.applcore.common.SecuredTokenBean().getTrustToken())def url = thirdpartyapplicationurl +"param1="+OptyId+"&jwt ="+crmkeyreturn (url)  This snippet generates a URL which contains The Hostname/endpoint of the 3rd party application Two Parameters The opportunityId stored in parameter "param1" The JWT Token store in  parameter "jwt" 3. From your 3rd Party Application you now have two options Execute a webservice call by first setting the header parameter "Authentication" to the JWT token. The webservice call will be executed against Fusion Applications "As" the user who execute the process To find out "Who you are" , set the header parameter to "Authentication" and execute the special webservice call findSelfUserDetails(), in the UserDetailsService For more information  Oracle Sales Cloud Documentation , specific chapter on JWT Token OTN samples, specifically the Rich UI With JWT Token Sample Oracle Fusion Applications General Documentation

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  • Game of Phones

    - by Carlos Chang
    Game  of  Phones There’s an excellent DZone article titled: 2014 Guide to Mobile Development. It’s loaded with excellent information including some results from a mobile related survey to more than 1000 IT professionals. Without giving away too much, these highlights should convince you to read the entire article.  Web and Hybrid apps are gaining tons of traction particularly in the enterprise. If you want to better understand the differences between Web, Native and Hybrid, this article has you covered. Enterprise developers are increasingly more interested in cross platform tools. Makes sense right?  I mean, unless you have infinite resources (e.g. Facebook) and can afford to write native apps to every platform, finding something that can meet your needs for iOS and Android makes sense.  And toss in the possibility of Windows Phone …and oh, just to be current, the addition of Apple’s new mobile language, Swift, to add to Objective C.. and oh boy.  Why not check out cross platform tools? BTW, don’t  forget testing on each platform, and maintenance and the next versions of the app. It’s not one and done. If you’re successful, you’re never done. Various mobile vendors are represented and many provide some great information.  Oracle's own Suhas Uliyar, VP of Mobile Strategy, represented with some great insights into the challenges of mobile back end integration (SOA, mBaaS, etc.) and moving from "mobile first" to a mobile plus world. BTW, Suhas was recently named Top 100 Wireless Technology Experts for 2014 by Today's Wireless World magazine.  And if your not yet convinced, DZone did a very nice job with their mobile infographic stylized after the insanely popular series, Game of Thrones.  Even though there were no dragons illustrated, worth the price of admission just for that.   Check it out here.

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  • What constitutes a "substantial, good-faith effort to remove the links"

    - by Luke McCallum
    We engaged the services of a 3rd party SEO consultant to assist us in managing our Meta data and to write regular blogs on our site http://cyberdesignworks.com.au Without our authorisation, the SEO also ran a link building campaign which has seen us Penguin slapped and we no longer appear in Google for a number of our core keywords. Since notification by Google that we have "unnatural links" back in March we have undertaken a significant campaign to rid ourselves of these dodgy backlinks by a number of methods. I have just received feedback on my 4th or 5th resubmission which is still advising that we need to make a "substantial, good-faith effort to remove the links" before Google will reconsider us for inclusion. After the effort that I have gone through to get links removed, I am now at a loss as to what else I can do to demonstrate "substantial, good-faith effort to remove the links". Below is a summary of the actions that we have taken to date. According to http://removem.com we had about 5584 back-linking domains. Of those we have successfully contacted and had removed links from 344 domains We ignored links from 625 domains as they were either legitimate press releases, natural backlinks or client websites containing an attribution link in the footer that points back to us. Due to our efforts, or the sites simply becoming defunct, removem.com reports that links from 3262 domains have been removed. We have contacted but are yet to receive feedback from 1666 domains so we can assume that the backlinks remain. We have configured an automatic 301 redirect for each of the links from these 1666 domains to point to http://redirects.sanscode.com/ which we are calling our Bad Link Catcher (a stroke of genius I thought). i.e http://www.mysimplewebdesign.com/create-a-perfect-webpage-with-four-important-tips-from-sydney-web-development-service-companies.php As we are a web design agency, we have a large number of client websites which contain an attribution link in their footer which points back to us. We have gone through the vast majority of these and updated these links to replace anchor text with an image and rel="nofollow" link. i.e <a rel="nofollow" target="_blank" href="http://www.cyberdesignworks.com.au/"><img src="https://sessions.sanscode.com/site/assets/media/badges/Badge_CDW_SANSCODE.png"></a> See http://www.milkatwork.com.au/ An export from http://removem.com detailing the number of times we have contacted each link and whether it is still found or not was also supplied with each resubmission. The total back links reported in Google Web Master Tools has dropped from over 100K to 87K and I expect it to drop significantly lower once Google re-crawls each back-linking page. Based on all of the above, I am not sure what else I can do to to demonstrate a "substantial, good-faith effort to remove the links". I would sincerely appreciate any feedback or suggestions that you may have as I am out of ideas.

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  • Follow the How-To Geek Writers on Twitter

    - by The Geek
    Ever wonder what the How-To Geek writers are up to? If you’re a Twitter user, you can connect with us directly. We’ve also setup a new @howtogeeknews account if you just want to keep up with the latest articles. So if you want just the latest articles… click the image below and then click the Follow button. Otherwise, if you’d like to connect with the rest of us that actually use Twitter, you can follow each of us separately through  the links below. Note: Let’s try to stick to discussion, and leave the tech support questions for our forum. the How-To Geek (that’s me!) -  @howtogeek Matthew Guay – @maguay Trevor Bekolay – @TrevorBekolay Asian Angel – @asian_angel  Andrew Gehman – @andrewgehman Some of the HTG writers are not currently using Twitter… but I’m gonna list their accounts just in case you wanted to follow them. Mark Virtue – @markvirtue Mysticgeek – @mysticgeek  (He’s far too productive to waste time on Twitter!) Enjoy the conversation! Similar Articles Productive Geek Tips Got Awesome Geek Skills? The How-To Geek is Looking for WritersGot Awesome Skills? Why Not Write for How-To Geek?Integrate Twitter With Microsoft OutlookState of the Geek 2009: Behind the Scenes and Other GeekeryAnnouncing the How-To Geek Blogs TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Download Videos from Hulu Pixels invade Manhattan Convert PDF files to ePub to read on your iPad Hide Your Confidential Files Inside Images Get Wildlife Photography Tips at BBC’s PhotoMasterClasses Mashpedia is a Real-time Encyclopedia

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  • How does I/O work for large graph databases?

    - by tjb1982
    I should preface this by saying that I'm mostly a front end web developer, trained as a musician, but over the past few years I've been getting more and more into computer science. So one idea I have as a fun toy project to learn about data structures and C programming was to design and implement my own very simple database that would manage an adjacency list of posts. I don't want SQL (maybe I'll do my own query language? I'm just having fun). It should support ACID. It should be capable of storing 1TB let's say. So with that, I was trying to think of how a database even stores data, without regard to data structures necessarily. I'm working on linux, and I've read that in that world "everything is a file," including hardware (like /dev/*), so I think that that obviously has to apply to a database, too, and it clearly does--whether it's MySQL or PostgreSQL or Neo4j, the database itself is a collection of files you can see in the filesystem. That said, there would come a point in scale where loading the entire database into primary memory just wouldn't work, so it doesn't make sense to design it with that mindset (I assume). However, reading from secondary memory would be much slower and regardless some portion of the database has to be in primary memory in order for you to be able to do anything with it. I read this post: Why use a database instead of just saving your data to disk? And I found it difficult to understand how other databases, like SQLite or Neo4j, read and write from secondary memory and are still very fast (faster, it would seem, than simply writing files to the filesystem as the above question suggests). It seems the key is indexing. But even indexes need to be stored in secondary memory. They are inherently smaller than the database itself, but indexes in a very large database might be prohibitively large, too. So my question is how is I/O generally done with large databases like the one I described above that would be at least 1TB storing a big adjacency list? If indexing is more or less the answer, how exactly does indexing work--what data structures should be involved?

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  • Wordpress Installation (on IIS and SQL Server)

    - by Davide Mauri
    To proceed with the installation of Wordpress on SQL Server and IIS, first of all, you need to do the following steps Create a database on SQL Server that will be used by Wordpress Create login that can access to the just created database and put the user into ddladmin, db_datareader, db_datawriter roles Download and unpack Wordpress 3.3.2 (latest version as of 27 May 2012) zip file into a directory of your choice Download the wp-db-abstraction 1.1.4 (latest version as of 27 May 2012) plugin from wordpress.org website Now that the basic action has been done, you can start to setup and configure your Wordpress installation. Unpack and follow the instructions in the README.TXT file to install the Database Abstraction Layer. Mainly you have to: Upload wp-db-abstraction.php and the wp-db-abstraction directory to wp-content/mu-plugins.  This should be parallel to your regular plugins directory.  If the mu-plugins directory does not exist, you must create it. Put the db.php file from inside the wp-db-abstraction.php directory to wp-content/db.php Now you can create an application pool in IIS like the following one Create a website, using the above Application Pool, that points to the folder where you unpacked Wordpress files. Be sure to give the “Write” permission to the IIS account, as pointed out in this (old, but still quite valid) installation manual: http://wordpress.visitmix.com/development/installing-wordpress-on-sql-server#iis Now you’re ready to go. Point your browser to the configured website and the Wordpress installation screen will be there for you. When you’re requested to enter information to connect to MySQL database, simply skip that page, leaving the default values. If you have installed the Database Abstraction Layer, another database installation screen will appear after the one used by MySQL, and here you can enter the configuration information needed to connect to SQL Server. After having finished the installation steps, you should be able to access and navigate your wordpress site.  A final touch, and it’s done: just add the needed rewrite rules http://wordpress.visitmix.com/development/installing-wordpress-on-sql-server#urlrewrite and that’s it! Well. Not really. Unfortunately the current (as of 27 May 2012) version of the Database Abstraction Layer (1.1.4) has some bugs. Luckily they can be quickly fixed: Backslash Fix http://wordpress.org/support/topic/plugin-wp-db-abstraction-fix-problems-with-backslash-usage Select Top 0 Fix Make the change to the file “.\wp-content\mu-plugins\wp-db-abstraction\translations\sqlsrv\translations.php” suggested by “debettap”   http://sourceforge.net/tracker/?func=detail&aid=3485384&group_id=315685&atid=1328061 And now you have a 100% working Wordpress installation on SQL Server! Since I also wanted to take advantage of SQL Server Full Text Search, I’ve created a very simple wordpress plugin to setup full-text search and to use it as website search engine: http://wpfts.codeplex.com/ Enjoy!

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  • Virtual Box - How to open a .VDI Virtual Machine

    - by [email protected]
    TUESDAY, APRIL 27, 2010 How to open a .VDI Virtual MachineSometimes someone share with us one Virtual machine with extension .VDI, after that we can wonder how and what with?Well the answer is... It is a VirtualBox - Virtual Machine. If you have not downloaded it you can do this easily just follow this post.http://listeningoracle.blogspot.com/2010/04/que-es-virtualbox.htmlorhttp://oracleoforacle.wordpress.com/2010/04/14/ques-es-virtualbox/Ok, Now with VirtualBox Installed open it and proceed with the following:1. Open the Virtual File Manager.2. Click on Actions ? Add and select the .VDI fileClick "Ok"3. Now we can register the new Virtual Machine - Click New, and Click Next4. Write down a Name for the virtual Machine a proceed to select a Operating System and Version. (In this case it is a Linux (Oracle Enterprise Linux or RedHat)Click Next5. Select the memory amount base for the Virtual Machine(Minimal 1280 for our case) - Click Next6. Select the Disk 11GR2_OEL5_32GB.vdi it was added in the virtual media manager in the step 2.Dont forget let selected Boot hard Disk (Primary Master) . Given it is the only disk assigned to the virtual machine.Click Next7. Click Finish8. This step is important. Once you have click on the settings Button. 9. On General option click the advanced settings. Here you must change the default directory to save your Snapshots; my recommendation set it to the same directory where the .Vdi file is. Otherwise you can have the same Virtual Machine and its snapshots in different paths.10. Now Click on System, and proceed to assign the correct memory (If you did not before)Note: Enable "Enable IO APIC" if you are planning to assign more than one CPU to the Virtual Machine.Define the processors for the Virtual machine. If you processor is dual core choose 211. Select the video memory amount you want to assign to the Virtual Machine12. Associated more storage disk to the Virtual machine, if you have more VDI files.(Not our case)The disk must be selected as IDE Primary Master.13. Well you can verify the other options, but with these changes you will be able to start the VM.Note: Sometime the VM owner may share some instructions, if so follow his instructions.14. Finally Start the Virtual Machine (Click > Start)

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  • Dynamic Filtering

    - by Ricardo Peres
    Continuing my previous posts on dynamic LINQ, now it's time for dynamic filtering. For now, I'll focus on string matching. There are three standard operators for string matching, which both NHibernate, Entity Framework and LINQ to SQL recognize: Equals Contains StartsWith EndsWith So, if we want to apply filtering by one of these operators on a string property, we can use this code: public enum MatchType { StartsWith = 0, EndsWith = 1, Contains = 2, Equals = 3 } public static List Filter(IEnumerable enumerable, String propertyName, String filter, MatchType matchType) { return (Filter(enumerable, typeof(T), propertyName, filter, matchType) as List); } public static IList Filter(IEnumerable enumerable, Type elementType, String propertyName, String filter, MatchType matchType) { MethodInfo asQueryableMethod = typeof(Queryable).GetMethods(BindingFlags.Static | BindingFlags.Public).Where(m = (m.Name == "AsQueryable") && (m.ContainsGenericParameters == false)).Single(); IQueryable query = (enumerable is IQueryable) ? (enumerable as IQueryable) : asQueryableMethod.Invoke(null, new Object [] { enumerable }) as IQueryable; MethodInfo whereMethod = typeof(Queryable).GetMethods(BindingFlags.Public | BindingFlags.Static).Where(m = m.Name == "Where").ToArray() [ 0 ].MakeGenericMethod(elementType); MethodInfo matchMethod = typeof(String).GetMethod ( (matchType == MatchType.StartsWith) ? "StartsWith" : (matchType == MatchType.EndsWith) ? "EndsWith" : (matchType == MatchType.Contains) ? "Contains" : "Equals", new Type [] { typeof(String) } ); PropertyInfo displayProperty = elementType.GetProperty(propertyName, BindingFlags.Public | BindingFlags.Instance); MemberExpression member = Expression.MakeMemberAccess(Expression.Parameter(elementType, "n"), displayProperty); MethodCallExpression call = Expression.Call(member, matchMethod, Expression.Constant(filter)); LambdaExpression where = Expression.Lambda(call, member.Expression as ParameterExpression); query = whereMethod.Invoke(null, new Object [] { query, where }) as IQueryable; MethodInfo toListMethod = typeof(Enumerable).GetMethod("ToList", BindingFlags.Static | BindingFlags.Public).MakeGenericMethod(elementType); IList list = toListMethod.Invoke(null, new Object [] { query }) as IList; return (list); } var list = new [] { new { A = "aa" }, new { A = "aabb" }, new { A = "ccaa" }, new { A = "ddaadd" } }; var contains = Filter(list, "A", "aa", MatchType.Contains); var endsWith = Filter(list, "A", "aa", MatchType.EndsWith); var startsWith = Filter(list, "A", "aa", MatchType.StartsWith); var equals = Filter(list, "A", "aa", MatchType.Equals); Perhaps I'll write some more posts on this subject in the near future. SyntaxHighlighter.config.clipboardSwf = 'http://alexgorbatchev.com/pub/sh/2.0.320/scripts/clipboard.swf'; SyntaxHighlighter.brushes.CSharp.aliases = ['c#', 'c-sharp', 'csharp']; SyntaxHighlighter.all();

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  • Commit Review Questions

    - by Wes McClure
    Note: in this article when I refer to a commit, I mean the commit you plan to share with the rest of the team, if you have local commits that you plan to amend/combine, I am referring to the final result. In time you will find these easier to do as you develop, however, all of these are valuable before checking in!  The pre commit review is a nice time to polish what might have been several hours of intense work, during which these things were the last things on your mind!  If you are concerned about losing your work in the process of responding to these questions, first do a check-in and amend it as you go (assuming you are using a tool such as git that supports this), rolling the result into one nice commit for everyone else.  Did you review your commit, change by change, with a diff utility? If not, this is a list of reasons why you might want to start! Did you test your changes? If the test is valuable to be automated, is it? If it’s a manual testing scenario, did you at least try the basics manually? Are the additions/changes formatted consistently with the rest of the project? Lots of automated tools can help here, don’t try to manually format the code, that’s a waste of time and as a human you will fail repeatedly. Are these consistent: tabs versus spaces, indentation, spacing, braces, line breaks, etc Resharper is a great example of a tool that can automate this for you (.net) Are naming conventions respected? Did you accidently use abbreviations, unless you have a good reason to use them? Does capitalization match the conventions in the project/language? Are files partitioned? Sometimes we add new code in existing files in a pinch, it’s a good idea to split these out if they don’t belong ie: are new classes defined in new files, if this is something your project values? Is there commented out code? If you are removing an existing feature, get rid of it, that is why we have VCS If it’s not done yet, then why are you checking it in? Perhaps a stash commit (git)? Did you leave debug or unnecessary changes? Do you understand all of the changes? http://geekswithblogs.net/wesm/archive/2012/04/11/programming-doesnrsquot-have-to-be-magic.aspx Are there spelling mistakes? Including your commit message! Is your commit message concise? Is there follow up work? Are there tasks you didn’t write down that you need to follow up with? Are readability or reorganization changes needed? This might be amended into the final commit, or it might be future work that needs added to the backlog. Are there other things your team values that you should review?

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  • MythTV lost recordings - "No recordings available" and no recording rules either

    - by nimasmi
    I have a c.6 year old mythtv database. I recently upgraded from Ubuntu 10.04 to 12.04. This brought a MythTV upgrade from 0.24 to 0.25, which went well. Today, all my recordings have disappeared. They still exist in the /var/lib/mythtv/recordings folder, and the 'M' key in the Watch Recordings page says that there are 201 recordings available somewhere, but they will not display. See screenshot: (implicit thanks to whomever upvoted this, giving me sufficient reputation to upload images) Changing the filter does not remedy the fact that there is nothing shown in the lists. My Upcoming Recordings screen says that there are no rules set, but my list of previously recorded shows is still there, and has an entry from as recently as 3am today. mythbackend --printsched gives the following: user@box:~$ mythbackend --printsched 2012-09-22 12:59:20.537008 C mythbackend version: fixes/0.25 [v0.25.2-15-g46cab93] www.mythtv.org 2012-09-22 12:59:20.537043 C Qt version: compile: 4.8.1, runtime: 4.8.1 2012-09-22 12:59:20.537048 N Enabled verbose msgs: general 2012-09-22 12:59:20.537076 N Setting Log Level to LOG_INFO 2012-09-22 12:59:20.537142 I Added logging to the console 2012-09-22 12:59:20.537152 I Added database logging to table logging 2012-09-22 12:59:20.537279 N Setting up SIGHUP handler 2012-09-22 12:59:20.537373 N Using runtime prefix = /usr 2012-09-22 12:59:20.537394 N Using configuration directory = /home/user/.mythtv 2012-09-22 12:59:20.537999 I Assumed character encoding: en_GB.UTF-8 2012-09-22 12:59:20.538599 N Empty LocalHostName. 2012-09-22 12:59:20.538610 I Using localhost value of box 2012-09-22 12:59:20.538792 I Testing network connectivity to '192.168.1.2' 2012-09-22 12:59:20.539420 I Starting process manager 2012-09-22 12:59:20.541412 I Starting IO manager (read) 2012-09-22 12:59:20.541715 I Starting IO manager (write) 2012-09-22 12:59:20.541836 I Starting process signal handler 2012-09-22 12:59:20.684497 N Setting QT default locale to EN_GB 2012-09-22 12:59:20.684694 I Current locale EN_GB 2012-09-22 12:59:20.684813 N Reading locale defaults from /usr/share/mythtv//locales/en_gb.xml 2012-09-22 12:59:20.697623 I New static DB connectionDataDirectCon 2012-09-22 12:59:20.704769 I MythCoreContext: Connecting to backend server: 192.168.1.2:6543 (try 1 of 1) Calculating Schedule from database. Inputs, Card IDs, and Conflict info may be invalid if you have multiple tuners. 2012-09-22 12:59:27.710538 E MythSocket(21dfcd0:14): readStringList: Error, timed out after 7000 ms. 2012-09-22 12:59:27.710592 C Protocol version check failure. The response to MYTH_PROTO_VERSION was empty. This happens when the backend is too busy to respond, or has deadlocked in due to bugs or hardware failure. Things I have tried so far: restart the backend restart the frontend run mythtv-setup and check database passwords and IP addresses change the frontend setting for backend IP from localhost to 192.168.1.2 (the backend/frontend's IP) run optimize_mythdb.pl Other suggestions appreciated.

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