Search Results

Search found 14292 results on 572 pages for 'high integrity systems'.

Page 386/572 | < Previous Page | 382 383 384 385 386 387 388 389 390 391 392 393  | Next Page >

• Mysql out of disk space

  - by Paddy

  I have just finished developing a rails app which has a mysql db as a backend. The app is meant for high traffic and will store lots of information. I am planning to set up my own web server and host the site from it. If in future my disk space runs out i would want to expand by adding more space. But say if my mysql database is housed in my /disk0s1 and by adding a new drive i have more partitions (and hence more disk space), how then would i extend my database to store information on those partitions too, and at the same time prevent any information from being written on the original partition. Should i go for multiple databases? if so how? If i went for a hosting solution i wouldn't be bothering about this as i would just have to worry about making payments for the extra space :) I always wondered how space is added on-the-go by these webhosts. Is there any specific mysql configuration that i have to make?

  Read the article

• designing an API wrapper for Twitter, Facebook, Youtube etc...

  - by John Stewart

  I am looking at some pointers on how to design a wrapper for these social networking sites. Ideally what I want to do is create a black box where I am able to create an interface for other libraries to call certain functions to interact with these social networking sites. I am planning on using oAuth for most of these sites, I already have this layer designed in PHP. The other layer that I need for these social sites is the ability to push and pull content. For example, the ability to pull feeds for users from each of these networks and then should I cache them on my end? how would I cache all twitter, facebook etc activity feed and be able to account for resync etc? The networks that I am looking at are: Twitter Youtube Facebook LinkedIN Vimeo Flickr I am looking for ideas on how to tackle this in php? Any suggestions, opensource systems that I can learn from?

  Read the article

• What ERP system should I choose?

  - by Zakaria

  Hi everybody, I want to learn an ERP system.I think the best one is SAP. But I noticed that many open source systems do exist. What is the best open source ERP that includes CRM? I found Ofbiz, OpenERP, OpenBravo, etc ... but I would really avoid testing them one by one ... What I need is a tool that can do what SAP ERP can do but for free. Thank you very much, Regards.

  Read the article

• Is there any way to use getaddrinfo() and freeaddrinfo() and still be the program compatible with le

  - by Sam C.

  Hi, in the Winsock2 library getaddrinfo() and freeaddrinfo() was only added in Windows XP and on. I know how to replace them in legacy systems, but a conditional use depending on the Windows version won't help. The application won't start in 9x with a message saying that it was linked to a missing export in WS2_32.dll. I'm using MinGW to compile and link the code and would like to keep using it. Maybe writing those functions by myself? Thank you very much for everything.

  Read the article

• Difference between Apache Tapestry and Apache Wicket

  - by Stephan Schmidt

  Apache Wicket ( http://wicket.apache.org/ ) and Apache Tapestry ( http://wicket.apache.org/ ) are both component oriented web frameworks - contrary to action based frameworks like Stripes - by the Apache Foundation. Both allow you to build your application from components in Java. They both look very similar to me. What are the differences between those two frameworks? Has someone experience in both? Specifically: How is their performance, how much can state handling be customized, can they be used stateless? What is the difference in their component model? What would you choose for which applications? How do they integrate with Guice, Spring, JSR 299? Edit: I have read the documentation for both and I have used both. The questions cannot be answered sufficently from reading the documentation, but from the experience from using these for some time, e.g. how to use Wicket in a stateless mode for high performance sites. Thanks.

  Read the article

• Validation of user input or ?????????

  - by zaf

  We're letting users search a database from a single text input and I'm having difficulties in filtering some user supplied strings. For example, if the user submits: ????????? lcd SONY (Note the ?'s) I need to cancel the search. I include the base64 encoded version of the above string wrapped up so that its easy run: print(base64_decode("1MfLxc/RwdPHIGxjZCBTT05Z")); I've ignored such inputs before but now (am not sure why) just realised the mysql database query is taking nearly forever to execute so this is now on high priority. Another example to highlight that we are using utf-8 and mb_detect_encoding is not helping much: print(base64_decode("zqDOm8+Fzr3PhM63z4HOuc6/IM+Bzr/Phc+HzyU=")); ????t???? ?????% So: how can I detect/filter these inputs? how is this input being generated?

  Read the article

• Is wordpress a good platform for webapp development?

  - by darlinton

  I am planning a webapp to control bank paying orders. In a quick review, the user goes online and creates a payment order. This order goes to other people that pays it and register the payment on the system. The system keeps track of all the payments, keeping the account balance up-to-date. The system needs a login system, bank integration, and to support at some point thousands of clients. We can find articles on the web about the benefits of using wordpress platform to build webapps. However, I could not find discussion with counterarguments to user wordpress. As the platform the most important choice in webapp project, I would to know more about the pitfalls and harms for choosing wordpress. The question is: What are the benefits and harms for choosing wordpress as a development platform for a webapp that need to be integrated with other system (backend systems) and to handle thousands of users (does it scale up?)?

  Read the article

• Developer workload management software: recommendations?

  - by PaddyC

  In my place, we use two issue tracking tools, one for production bugs, and another for issues on projects in development. These tools are good for managers. However, at an individual level, other work can also arrive through desk visits, email, or the phone, and those allocating the work aren't always interested in issue tracking systems. I've recently rolled off an 18-month project where I got into a cycle of overtime, and I found that I didn't always have good visibility of all work assigned to me. As a result, I was always very busy, and felt constantly laden down with work, but didn't have the clear data to show my manager (or, ironically, the time to stop and gather the information!). A handwritten list, updated at the end of each day, is a good start, but can anyone recommend better tools to help me get a clear view of my own workload? Ideally, I'm thinking of software tools for developers, which could incorporate estimates, but all suggestions welcome. Thanks, Paddy

  Read the article

• Any free (or cheaper) jqGrid alternatives?

  - by upthecreek

  jqGrid seems pretty good to me, but I don't like the price ($299! - for a JQuery plugin this seems waaay to high to me) Does anyone know of a similar component, for use with ASP.NET MVC, which is either free or less pricey? Thanks EDIT: If looks like I may have got the licensing terms wrong. From this page, it looked like there was no free for commercial use option. But, According to last poster this is incorrect. Can anyone else confirm it is free for commercial use?

  Read the article

• Dynamically create sprite images for Cocos2d-iPhone

  - by AlexChilcott

  Hey guys, I'm working on a platformer, and looking for a way to create a sprite for an arbitrarily sized platform. For example, I may know I have a platform that should appear 200 pixels wide by 32 pixels high, and, say, I have a texture of bricks that I can tile to fill that area. I may also want to draw a black border around the platform. Is this possible at all? Anyone have any ideas for how I might go about doing this? I could always try generating the image on the fly and building a sprite with that image, but I sincerely doubt (hope) that this isn't the most efficient way of doing something like this. Cheers, Alex

  Read the article

• Is there a Java equivalent to libevent?

  - by JoelPM

  I've written a high-throughput server that handles each request in its own thread. For requests coming in it is occasionally necessary to do RPCs to one or more back-ends. These back-end RPCs are handled by a separate queue and thread-pool, which provides some bounding on the number of threads created and the maximum number of connections to the back-end (it does some caching to reuse clients and save the overhead of constantly creating connections). Having done all this, though, I'm beginning to think an event-based architecture would be more efficient. In searching around I haven't found any equivalents to libevent for Java, but maybe I'm not looking in the right place? Mina-statemachine from Apache was the closest thing I found, but it looks more verbose than I need and there's no real release available. Any suggestions?

  Read the article

• Bit manipulation, permutate bits

  - by triktae

  Hi. I am trying to make a loop that loops through all different integers where exactly 10 of the last 40 bits are set high, the rest set low. The reason is that I have a map with 40 different values, and I want to sum all different ways ten of these values can be multiplied. (This is just out of curiosity, so it's really the "bitmanip"-loop that is of interest, not the sum as such.) If I were to do this with e.g. 2 out of 4 bits, it would be easy to set all manually, 0011 = 7, 0101 = 5, 1001 = 9, 0110 = 6, 1010 = 10, 1100 = 12, but with 10 out of 40 I can't seem to find a method to generate these effectively. I tried, starting with 1023 ( = 1111111111 in binary), finding a good way to manipulate this, but with no success. I've been trying to do this in C++, but it's really the general method(if any) that is of interest. I did some googling, but with little success, if anyone has a good link, that would of course be appreciated too. :)

  Read the article

• CSS3 gradient background set on body doesn't stretch but instead repeats?

  - by John Isaacks

  ok say the content inside the <body> totals 300px high. If I set the background of my <body> using -webkit-gradient or -moz-linear-gradient Then I maximize my window (or just make it taller than 300px) the gradient will be exactly 300px tall (the height of the content) and just repeat to fill the rest of the window. I am assuming this is not a bug since it is the same in both webkit and gecko. But is there a way to make the gradient stretch to fill the window instead of repeat?

  Read the article

• Is Oracle AQ/Streams of any use in my situation?

  - by RenderIn

  I'm writing a workflow system that is driven entirely at each step by explicit human interaction. That is, a task is assigned to a person, that person selects from a few limited options {approve, reject, forward}, and then it is either sent along to the next person or terminated. Just curious of Oracle Streams/AQ has anything to offer over flat tables managed by regular web application code. The amount of processing after each action is fairly limited and the volume is not terribly high, so there's not really a need to throttle things by throwing them into a queue. What are some of the benefits of introducing a queue structure, or is it overkill for my situation?

  Read the article

• Cannot login to drupal in Chrome or Firefox, but Safari works

  - by WmasterJ

  Problem: Login is not working in Firefox and Chrome but it does in Safari. Details: We just moved a drupal 6 installation to another host and followed some steps: Moved sites/site1/Themes/themeFolder to sites/all/Themes/themeFolder Made these changes in page-node-NNN.tpl.php files (searched all files in themes/themeFolder): 1) find: /oldpath/ replace: /newpath/ 2) find: oldsubdomain. replace: www. 3) find: .com/sites/ replace: .com/newpath/sites/ Then as I login it fails in any browser when the wrong information is entered but when it is correct it simply redirects to that users profile page...and then nothing. There are no admin menus, no edit buttons for content and it is a though it authenticated but somehow never stored anything that would help with the authentication later. The strange thing is that for 3 people with three different systems Firefox and Chrome don't work. But Safari does. We have ruled out that it is the database or old cookies. Any one have a good guess?

  Read the article

• EF and design pattern

  - by kathy

  Hello, I’m working on a high volume transactional enterprise application(asp.net, windows app, oracle app as client) which has been designed using n-tire application and SOA architecture .The application was developed in the .NET platform utilizing C#,VB.NET, Framework 3.5 (I’m planning to upgrade to the , Framework 4.0), EF( EF in the data layer level) and WCF(WCF services in the service layer level) Since this is the first project using EF, and having read about using EF in n-tier and SOA applications, and the features available in the EF Feature, I have the following points: Which design pattern should I use in EF( Simple Entities, Change Set, Self-Tracking Entities and DTOs) in the data layer level In addition Which design pattern should I use in the other tier and layer to get the best practices of EF Thanks

  Read the article

• Using OpenGL drawing operations in an object-oriented setting?

  - by Lion Kabob

  I've been plowing through basic shaders and whatnot for an application I'm writing, and I've been having trouble figuring out a high-level organization for the drawing calls. I'm thinking of having a singleton class which implements a number of basic drawing operations, taking data from "user" classes and passing that to the appropriate opengl calls. I'm wondering how people do this when writing their own applications, as the internet is chock full of basic "Your first shader" tutorials, but very little on suggested organization of drawing code. My particular environment is targeted at iPad/OpenGL ES 2.0, but I think the question stands for most environments.

  Read the article

• Touch screens for kiosk applications

  - by Micah

  I'm developing a kiosk-style touchscreen application in Qt. Currently I'm using an Elo Touch surface acoustic wave touchmonitor which works well except for one thing: drag performance is way too poor to provide a good user experience. As this is the case for the cursor in X as well as in my application, it seems to be either the fault of X (probably not) or the touchmonitor. Since mobile platforms are able to achieve very high performance in this regard, it seems like it should be possible for vastly more powerful desktop systems. Does anybody have experience with getting good drag performance out of desktop touchmonitors? What hardware have you used? Is X to blame?

  Read the article

• How to launch standard browser out of Java application?

  - by Peter

  Hi there how to I open a URL with the systems standard browser with Java? I currently use this code for opening a specific URL (locally stored html file), which works fine when I run the application with my IDE (Eclipse), but after bundling the software, it doesn't work any more. url = MainWindow.class.getResource("mySite.html"); helpMenuItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { java.awt.Desktop.getDesktop().browse(url.toURI()); } catch (URISyntaxException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } } }); Any suggestsions? Thank you very much!

  Read the article

• Reordering arrays

  - by Wurlitzer

  Hi, Say, I have an array that looks like this: var playlist = [ {artist:"Herbie Hancock", title:"Thrust"}, {artist:"Lalo Schifrin", title:"Shifting Gears"}, {artist:"Faze-O", title:"Riding High"} ]; How can move an element to another position? I want to move for example, {artist:"Lalo Schifrin", title:"Shifting Gears"} to the end. I tried using splice, like this: var tmp = playlist.splice(2,1); playlist.splice(2,0,tmp); But it doesn't work. Any help would be appreciated.

  Read the article

• Do you know a good and efficient FFT?

  - by yan bellavance

  Hi, I am trying to find a very fast and efficient Fourier transform (FFT). Does anyone know of any good ones. I need to run it on the iPhone so it must not be intensive. Instead, maybe you know of one that is wavelet like, i need frequency resolution but only a narrow band (vocal audio range up to 10khz max...even 10Khz might be too high). Im thinking also of truncating this FFT to keep the frequency resolution while eliminating the unwanted frequency band. This is for an iphone ...I have taken a look at the FFT in Aurio touch but it seems this is an int FFT but my app uses floats.....would it give a big performance increase to try and adapt program to an int FFT or not(which i really dont feel like doing...plus aurio touch uses a radix 2 FFT which is not that great).

  Read the article

• AS3: How to access pixel data efficiently?

  - by JonoRR

  I'm working a game. The game requires entities to analyse an image and head towards pixels with specific properties (high red channel, etc.) I've looked into Pixel Bender, but this only seems useful for writing new colors to the image. At the moment, even at a low resolution (200x200) just one entity scanning the image slows to 1-2 Frames/second. I'm embedding the image and instance it as a Bitmap as a child of the stage. The 1-2 FPS situation is using BitmapData.getPixel() (on each pixel) with a distance calculation beforehand. I'm wondering if there's any way I can do this more efficiently... My first thought was some sort of spatial partioning coupled with splitting the image up into many smaller pieces. I also feel like Pixel Bender should be able to help somehow, however I've had little experience with it. Cheers for any help. Jonathan

  Read the article

• Someone is using the struct name as a variable name too. What does the code really say? (c++)

  - by EvilTeach

  This morning we found an old chunk of code that was causing a library call to crash. struct fred { int a; int b; int c; }; fred fred[MAX_SIZE+1]; memset( fred, 0, sizeof(fred) * MAX_SIZE+1 ); It appears that the sizeof(fred) may have been the full array size, rather than the structure size, as it was overwriting a great deal of memory. The fact that it compiled without warning on several different systems seemed odd. Is there a correct semantic for this case where the type and variable name are colliding? or is this some sort of undefined behavior? or just a defect? I haven't been been clever enough to find anything on Google or our language help. Thanks Evil

  Read the article

• Play a beep that loop and change the frequency/speed

  - by Bono

  Hi all, I am creating an iphone application that use audio. I want to play a beep sound that loop indefinitely. I found an easy way to do that using the upper layer AVAudioPlayer and the numberOfLoops set to "-1". It works fine. But now I want to play this audio and be able to change the rate / speed. It may works like the sound played by a car when approaching an obstacle. At the beginning the beep has a low frequency and this frequency accelerate till reaching a continuous sound biiiiiiiiiiiip ... It seems this is not feasible using the high layer AVAudioPlayer, but even looking at AudioToolBox I found no solution. Does anybody have informations about how to do that? Thanks a lot for helping me!

  Read the article

• How to handle concurrent web requests

  - by Rajan

  I am having a simple webservice running in my local system, hosted in IIS 6.0. This webservice is accessible from any other system (within LAN and Internet) and everything works fine as long as the number of systems accessing my webservice is very much limited. Whereas, if more number of users (say 500) are concurrently trying to access my webservice, an exception is thrown saying 'Server is busy'. When i browsed in net, i found that IIS can handle only 100-150 web requests concurrently. What should i do to make my webservice accessible from more than 500 users, concurrently? Thanks in advance. Rajan.

  Read the article

< Previous Page | 382 383 384 385 386 387 388 389 390 391 392 393  | Next Page >