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Search found 229 results on 10 pages for 'klaus johan'.

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  • Memcached clustered alternative

    - by Johan Kooijman
    I'm looking to replace memcached. We have a LOT of traffic to our central memcached node which I'd like to split. There's only so much trunking networks I can do. My general idea is to install a memcached-type daemon on every webserver and have the daemons replicate set/delete/updates over all the daemons, so that each webserver connects to a socket or on localhost. All data should be available on all nodes. The alternatives: - repcached (max 2 masters) - redis (single master) - couchdb/mongodb/handlersocket - persistent data on disk, I'd like to remove the disk part to gain more performance. Any hints?

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  • Service Broker Solutions - Don't Forget the Basics

    - by AllenMWhite
    After finally getting a Service Broker solution implemented successfully, I'm really impressed with the technology, and frustrated how difficult it can be to implement and get it really working as expected. First, understand the technology. There are some great resources out there to help you get started. The first place to go is Klaus Aschenbrenner's book, the one that Greg Low reviewed this past week. It's an amazing resource and played a large part in my success. (I bought it for my Kindle, and...(read more)

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  • Service Broker Solutions - Don't Forget the Basics

    - by AllenMWhite
    After finally getting a Service Broker solution implemented successfully, I'm really impressed with the technology, and frustrated how difficult it can be to implement and get it really working as expected. First, understand the technology. There are some great resources out there to help you get started. The first place to go is Klaus Aschenbrenner's book, the one that Greg Low reviewed this past week. It's an amazing resource and played a large part in my success. (I bought it for my Kindle, and...(read more)

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  • SQLTraining in UK in Q3/Q4 of 2011

    - by NeilHambly
    As I prepare to embark on my Immersion training week with Paul & Kimberly from SQLSkills , which is another one of the courses being offered in the UK this year, it seems that these invariably get full very quickly, so don't hang around or you will miss your opportunity to attend them I do know of some other great SQL courses that give you in-depth training and these are the ones that I know of (shown is date order) Sept 12th - 14th (Klaus Aschenbrenner) "Advanced SQL Server Performance...(read more)

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  • Android CountDownTimer

    - by klaus-vlad
    hi, When writing : CountDownTimer timer = new CountDownTimer(1000, 100) { @Override public void onTick(long l) { } @Override public void onFinish() { }; }.start(); are we actually starting a new thread that handles ticks ? or what is really happening behind ?

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  • WWW::Mechanize Perl login only works after relaunch

    - by Klaus
    Hello, I'm trying to login automatically in a website using Perl WWW::Mechanize. What I do is: $bot = WWW::Mechanize->new(); $bot->cookie_jar( HTTP::Cookies->new( file => "cookies.txt", autosave => 1, ignore_discard => 1, ) ); $response = $bot->get( 'http://blah.foo/login' ); $bot->form_number(1); $bot->field( usern => 'user' ); $bot->field( pass => 'pass' ); $response =$bot->click(); print $response->content(); $response = $bot->get( 'http://blah.foo' ); print $response->content(); The login works, but when I load the page it tells me that I am not connected. You see that I store cookies in a file. Now if I relaunch the script without the login part, it says that I am connected... Does anyone understand this strange behaviour ?

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  • undefined reference linker error

    - by klaus-johan
    Hi, I've stuck myself in a c++ project under linux ,for which I get an undefined reference when I try to create an object of a class that I just wrote.I believe this is an linker error caused by the fact that somewhere , somehow I should tell the linker to take into account the new class. I looked at the project properties and at the run command it executes a script (cmake.sh) . Because the project wasn't created by me , and because I'm a novice in working under linux, I just don't know how to direct the linker to do what I expect him to do !

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  • OpenGL Motion blur with the accumulation buffer in WxWidgets

    - by Klaus
    Hello, I'm trying to achieve a motion blur effect in my OpenGL application. I read somewhere this solution, using the accumulation buffer: glAccum(GL_MULT, 0.90); glAccum(GL_ACCUM, 0.10); glAccum(GL_RETURN, 1.0); glFlush(); at the end of the render loop. But nothing happens... What am I missing ? Additions after genpfault answer: Indeed I did not asked for an accumulation buffer when I initialized my context. So I tried to pass an array of attributes to the constructor of my wxGLCanvas, as described here: http://docs.wxwidgets.org/2.6/wx_wxglcanvas.html : int attribList[]={ WX_GL_RGBA , WX_GL_DOUBLEBUFFER , WX_GL_MIN_ACCUM_RED, WX_GL_MIN_ACCUM_GREEN, WX_GL_MIN_ACCUM_BLUE, 0} But all I get is a friendly Seg fault. Does someone understand how to use this ? (no problems with int attribList[]={ WX_GL_RGBA , WX_GL_DOUBLEBUFFER , 0})

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  • SQLite in android

    - by klaus-vlad
    Hi, My android application uses an sqlite database and during first run it deletes some rows . The next time it runs it tries to do the same , but because the rows were previously deleted it fails . I use SQLite database browser to inspect the database ,after first run (when the rows are deleted) and I observe that the rows that no longer should exist are still in the database , even if ehwn running the app again those rows are no longer visible ! What is the cause for this behavior ?

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  • Compiling LaTex bib source

    - by Klaus
    Hi I am writing my thesis in Latex, and I have the references in an own thesis.bib file which look as follows @Article{xxx, author = "D.A. Reinhard", title = "Case Study", year = "1985", } and I reference them in my main document as ~\cite{xxx} When I compile then the main document with: pdflatex main.tex than it shows me question marks instead of the proper references to the bibliography. Do I also need to compile the bib source on its own? If yes, can somebody please tell me the command for Linux Many thanks!

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  • OpenGL Motion blur with the accumulation buffer

    - by Klaus
    Hello, I'm trying to achieve a motion blur effect in my OpenGL application. I read somewhere this solution, using the accumulation buffer: glAccum(GL_MULT, 0.90); glAccum(GL_ACCUM, 0.10); glAccum(GL_RETURN, 1.0); glFlush(); at the end of the render loop. But nothing happens... What I am missing ?

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  • Store in sharedPreferences

    - by klaus-vlad
    Hi, I have some things in my app that I need to store, in order to have it available the next time I open the application. I wonder if I could save them using the sharedPreferences mechanism even if I don't have any "view" associated with them ! .If this is possible please let me know, if not, what would you suggest instead ?

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  • activity parent

    - by klaus-vlad
    Hi, Can someone tell if why when starting an activity with startActivity(intent) , calling getParent() in onCreate() of the new created activity returns a nul ? Also how could I obtain the parent of an activity created in such a way ? Can a reference of the activity below the current activity in the activity stack be obtained ?

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  • emulator networking

    - by klaus-vlad
    Hi From my android code I try with the android browser to access a tomcat service running on my computer like this : Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://localhost:8080/615734.apk")); startActivity(myIntent); Unfortunately all I get is "page unavailable" . What should I do to be able to have this running ?

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  • Test if file exists

    - by klaus-vlad
    Hi, I'm trying to open a file in android like this : try { FileInputStream fIn = context.openFileInput(FILE); DataInputStream in = new DataInputStream(fIn); BufferedReader br = new BufferedReader(new InputStreamReader(in)); if(in!=null) in.close(); } catch(Exception e) { } , but in case the file does not exists a file not found exception is thrown . I'd like to know how could I test if the file exists before attempting to open it.

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  • Garbled text when constructing emails with vmime

    - by Klaus Fiedler
    Hey, my Qt C++ program has a part where it needs to send the first 128 characters or so of the output of a bash command to an email address. The output from the tty is captured in a text box in my gui called textEdit_displayOutput and put into my message I built using the Message Builder ( the object m_vmMessage ) Here is the relevant code snippet: m_vmMessage.getTextPart()->setCharset( vmime::charsets::US_ASCII ); m_vmMessage.getTextPart()->setText( vmime::create < vmime::stringContentHandler > ( ui->textEdit_displayOutput->toPlainText().toStdString() ) ); vmime::ref < vmime::message > msg = m_vmMessage.construct(); vmime::utility::outputStreamAdapter out( std::cout ); msg->generate( out ); Giving bash 'ls /' and a newline makes vmime give terminal output like this: ls /=0Abin etc=09 initrd.img.old mnt=09 sbin=09 tmp=09 vmlinuz.o= ld=0Aboot farts=09 lib=09=09 opt=09 selinux usr=0Acdrom home=09 = lost+found=09 proc srv=09 var=0Adev initrd.img media=09 root = Whereas it should look more like this: ls / bin etc initrd.img.old mnt sbin tmp vmlinuz.old boot farts lib opt selinux usr cdrom home lost+found proc srv var dev initrd.img media root sys vmlinuz 18:22> How do I encode the email properly? Does vmime just display it like that on purpose and the actual content of the email is ok?

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  • Android files manipulation

    - by klaus-vlad
    Hi, Through the housekeeping stuff my android application has to do is to read and write some files and sometimes to delete others and create new ones. The files in cause have all "sdcard/" as root. Is it safe if I perform all this task using Java style functions ? To me it is very handy to do it this way but I've read that not always the java functions can be applied when it comes to files in Android.

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  • C++ undefined reference

    - by klaus-johan
    Hi , My problem is the following : I have a class A that inherits from an abstract base class. I override all the virtual functions from the base class, and I have a constructor like this : A::A(B* b) { this->b=b; } In the constructor of class B , I have the following piece of code: A* a=new A(this) However this line of code gives the error : undefined reference to 'A::A(B*)' I have absolutly no idea why could this be happening , so any suggestion would be greatly appreciated !

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  • WxWidgets custom events

    - by Klaus
    Hello, I'm trying to use a custom event in my WxWidgets C++ application, like described here. In the constructor of my wxApp: Connect(wxID_ANY, wxCommandEventHandler(APP::OnMyEvent)); Then the function that should catch the event: void APP::OnMyEvent(wxCommandEvent& event) { exit(0); //testing } Finally, to test it: wxCommandEvent MyEvent(wxEVT_COMMAND_BUTTON_CLICKED); wxPostEvent(this, MyEvent); I launch the thing...but it seems that the event is not posted or not caught. Does someone understand this behaviour ?

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