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  • Where does apache store initialization state for mod_proxy_balancer

    - by khoxsey
    I run apache2 on Ubuntu as a caching load-balancing reverse proxy in front of a group of application servers. I have noticed that the balancer maintains some state for some of the attributes visible in /balancer-manager such as whether an IP is enabled/disabled, load factor, etc. My site has periods of high (and low) usage, and recently as I added a new server to the working group I noticed that the load balancer picked up the new server but had it set to Disabled. I'm curious where that data is stored, and/or how it is initialized.

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  • Scripting a database copy from MS Sql 2005 to 2008 without detach/backup/RDP

    - by James Santiago
    My goal is to move a single SQL 2005 database to a seperate 2008 server. The issue is my level of access to both servers. On each I can only access the database and nothing else. I cant create a backup file or detach the database because I don't have access to the file system or to create a proxy. I've tried using the generate script function of sql 2005 management studio express to restore the schema but receive command not supported errors when attempting to execute the sql on the new database. Similarly I tried using EMS SQL Manager 2005 Lite to script a backup of the schema and data but ran into similar problems. How do I go about acomplishing this? I can't seem to find any solutions outside of using the detach and backup functions.

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  • How to test lib files in Rails?

    - by jerhinesmith
    I understand the benefit of putting classes, modules, etc. in the lib folder in Rails, but I haven't been able to find a clean way of testing these files. For the most part, it seems like unit tests would be the logical approach. I guess my question is: What is the "rails way" for testing lib files?

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  • Robust, Mature HTML Parser for PHP

    - by Alan Storm
    Are there any robust and mature HTML parsers available for PHP? A quick skimming of PEAR didn't turn anything up (lots of classes for generating HTML, not so much for consuming), and Google taught me a lot of people have started and then abandoned a variety of parser projects. Not interested in XML parsers (unless then can consume non-well formed HTML) or hacking it on my own with regular expressions. Clarification of Intent: I'm not interested in filtering of HTML content, I'm interesting in extracting information from HTML documents.

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  • Technique/class to clean invalid XML in AS3/Flex 4?

    - by Quentin
    I'm looking for a way to load invalid (malformed) XML into an AS3 XML object. Do you know a class or a technique to do so? I have to load malformed HTML and parse it as XML. This is a Flex project so I can use Flex specific classes if needed! I thought of using the HTMLLoader since it accepts all kinds of malformed HTML and renders it properly but couldn't get anything to work...

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  • Twitter class by Tijs Verkoyen

    - by Tim
    I am trying to use this class http://classes.verkoyen.eu/twitter/ to update status on twitter, but I am getting this error: /statuses/update.xml Could not authenticate you. My code is just the following, I am using the latest version of the class (1.0.5) <?php include "twitter.php"; $twit = new Twitter("username","password"); $twit->updateStatus("Testing"); ?>

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  • Cant full read querystring data in mvc4 application using a class array as input to action

    - by Anders Lindén
    I have made a mvc4 application and I have a Controller that outputs a png file like this: using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Drawing.Text; using System.IO; using System.Web.Mvc; using Foobar.Classes; namespace Foobar.Controllers { public class ImageController : Controller { public ActionResult Index(Label[] labels) { var bmp = new Bitmap(400, 300); var pen = new Pen(Color.Black); var font = new Font("arial", 20); var g = Graphics.FromImage(bmp); g.SmoothingMode = SmoothingMode.HighQuality; g.TextRenderingHint = TextRenderingHint.AntiAliasGridFit; if (labels != null) { g.DrawString("" + labels.Length, font, pen.Brush, 20, 20); if (labels.Length > 0) { g.DrawString("" + labels[0].label, font, pen.Brush, 20, 40); } } var stream = new MemoryStream(); bmp.Save(stream, ImageFormat.Png); stream.Position = 0; return File(stream, "image/png"); } } } The Label class looks like this: using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace Foobar.Classes { public class Label { public string label { get; set; } public int fontsize { get; set; } } } When I run my controller having this in the url: http://localhost:57775/image?labels[0][label]=Text+rad+1&labels[0][fontsize]=5&labels[1][fontsize]=5&labels[2][fontsize]=5 I get the correct amount of labels, so the image will show 3. But the instances of Label will not get its data members fill in. I have also tried to do this using plain variables (not properties). If they were filled in, the image would actually show "3" and "Text rad 1". So what do I put in the class "Label" to have the properties right? Should there be some kind of annotation? Where do I read about this?

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  • Single django instance with subdomains for each app in the django project

    - by jwesonga
    I have a django project (django+apache+mod_wsgi+nginx) with multiple apps, I'd like to map each app as a subdomain: project/ app1 (domain.com) app2 (sub1.domain.com) app3 (sub3.domain.com) I have a single .wsgi script serving the project, which is stored in a folder /apache. Below is my vhost file. I'm using a single vhost file instead of separate ones for each sub-domain: <VirtualHost *:8080> ServerAdmin [email protected] ServerName www.domain.com ServerAlias domain.com DocumentRoot /home/path/to/app/ Alias /admin_media/ /usr/local/lib/python2.6/dist-packages/django/contrib/admin/media <Directory /home/path/to/wsgi/apache/> Order deny,allow Allow from all </Directory> LogLevel warn ErrorLog /home/path/to/logs/apache_error.log CustomLog /home/path/to/logs/apache_access.log combined WSGIDaemonProcess domain.com user=www-data group=www-data threads=25 WSGIProcessGroup domain.com WSGIScriptAlias / /home/path/to/apache/kcdf.wsgi </VirtualHost> <VirtualHost *:8081> ServerAdmin [email protected] ServerName sub1.domain.com ServerAlias sub1.domain.com DocumentRoot /home/path/to/app Alias /admin_media/ /usr/local/lib/python2.6/dist-packages/django/contrib/admin/media <Directory /home/path/to/wsgi/apache/> Order deny,allow Allow from all </Directory> LogLevel warn ErrorLog /home/path/to/logs/apache_error.log CustomLog /home/path/to/logs/apache_access.log combined WSGIDaemonProcess sub1.domain.com user=www-data group=www-data threads=25 WSGIProcessGroup sub1.domain.com WSGIScriptAlias / /home/path/to/apache/kcdf.wsgi </VirtualHost> My Nginx configuration for the domain.com: server { listen 80; server_name domain.com; access_log off; error_log off; # proxy to Apache 2 and mod_wsgi location / { proxy_pass http://127.0.0.1:8080/; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_max_temp_file_size 0; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } Configuration for the sub.domain.com: server { listen 80; server_name sub.domain.com; access_log off; error_log off; # proxy to Apache 2 and mod_wsgi location / { proxy_pass http://127.0.0.1:8081/; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_max_temp_file_size 0; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } This set up doesn't seem to work, everything seems to point to the main domain. I've tried http://effbot.org/zone/django-multihost.htm which kind of worked but seems to have issues with loading my css,images,js files.

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  • Covariance vs. contravariance

    - by alexmac
    What are the concepts of covariance and contravariance? Given 2 classes, Animal and Elephant (which inherits from Animal), my understanding is that you get runtime errors in .NET if you try and put an Elephant into an array of Animal, which happens because Elephant is "bigger" (more specific) than Animal. But could you assign Animal to an array of Elephants as Elephant is guaranteed to contain the Animal properties?

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  • supervise apache with daemontools

    - by perlwle
    I am trying to setup daemontools for two apaches in one server. one apache 2.2 listening on port 80 proxy request to a second apache 1.3 listening on port 8888. ./run script as following: #!/bin/sh # apache 1.3 exec /apache_1_3/apache/bin/httpd -F #!/bin/sh # apache 2.2 exec /apache_2_2/apache/bin/httpd -D FOREGROUND daemontools monitors both apache fine. however, If I stop apache2.2 (using svc -t or apachectl), the apache 1.3 will see the following error in error_log [crit] (98)Address already in use: make_sock: could not bind to port 8888 I had to manually apachectl stop the apache1.3 to stop the error message clobber the log file. There is no such problem before using daemontools. any idea why this is happening?

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  • PHP Doctrine frustration: loading models doesn't work..?

    - by ropstah
    I'm almost losing it, i really hope someone can help me out! I'm using Doctrine with CodeIgniter. Everything is setup correctly and works until I generate the classes and view the website. Fatal error: Class 'BaseObjecten' not found in /var/www/vhosts/domain.com/application/models/Objecten.php on line 13 I'm using the following bootstrapper (as CodeIgniter plugin): <?php // system/application/plugins/doctrine_pi.php // load Doctrine library require_once BASEPATH . '/plugins/Doctrine/lib/Doctrine.php'; // load database configuration from CodeIgniter require_once APPPATH.'/config/database.php'; // this will allow Doctrine to load Model classes automatically spl_autoload_register(array('Doctrine', 'autoload')); // we load our database connections into Doctrine_Manager // this loop allows us to use multiple connections later on foreach ($db as $connection_name => $db_values) { // first we must convert to dsn format $dsn = $db[$connection_name]['dbdriver'] . '://' . $db[$connection_name]['username'] . ':' . $db[$connection_name]['password']. '@' . $db[$connection_name]['hostname'] . '/' . $db[$connection_name]['database']; Doctrine_Manager::connection($dsn,$connection_name); } // CodeIgniter's Model class needs to be loaded require_once BASEPATH.'/libraries/Model.php'; // telling Doctrine where our models are located Doctrine::loadModels(APPPATH.'/models'); // (OPTIONAL) CONFIGURATION BELOW // this will allow us to use "mutators" Doctrine_Manager::getInstance()->setAttribute( Doctrine::ATTR_AUTO_ACCESSOR_OVERRIDE, true); // this sets all table columns to notnull and unsigned (for ints) by default Doctrine_Manager::getInstance()->setAttribute( Doctrine::ATTR_DEFAULT_COLUMN_OPTIONS, array('notnull' => true, 'unsigned' => true)); // set the default primary key to be named 'id', integer, 4 bytes Doctrine_Manager::getInstance()->setAttribute( Doctrine::ATTR_DEFAULT_IDENTIFIER_OPTIONS, array('name' => 'id', 'type' => 'integer', 'length' => 4)); ?> Anyone? p.s. I also tried adding the following right after // (OPTIONAL CONFIGURATION) Doctrine_Manager::getInstance()->setAttribute(Doctrine::ATTR_MODEL_LOADING, Doctrine::MODEL_LOADING_CONSERVATIVE); spl_autoload_register(array('Doctrine', 'modelsAutoload'));

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  • Setting lusca and dansguardian iptables on Ubuntu 12.04 to prevent loop

    - by Heri YT
    I have a server with ubuntu 12:04 operating system, which runs as a proxy cache server lusca and DansGuardian as well as internet content filter. With the following composition: the client browser - lusca - DansGuardian - internet. And all this running only on one machine only, the following is a partial configuration on my server lusca: http_port 3128 transparent cache_peer 192.168.0.1 parent 8080 0 no-query no-digest no-netdb-exchange default which is also only found on the DansGuardian default settings namely: filterip="blank" filterport=8080 proxyip=192.168.0.1 proxyport=3128 The question is: Can all goes well? By simply relying on one machine only? What causes the "WARNING: Forwarding loop detected for:"? is not problematic if we leave? How to solve "WARNING: Forwarding loop detected for:" found in / var / log / lusca / cache.log Thank you.

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  • How can I resolve circular dependencies in Funq IoC?

    - by Rickard
    I have two classes which I need to reference each other. class Foo { public Foo(IBar bar) {} } class Bar { public Bar(IFoo foo) {} } When I do: container.RegisterAutoWiredAs<Foo, IFoo>(); container.RegisterAutoWiredAs<Bar, IBar>(); and when I try to resolve either interface I get a circular dependency graph which results in an eternal loop. Is there an easy way to solve this in Funq or do you know of a workaround?

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  • Resharper function to fix naming convention issues

    - by Jan Jongboom
    A bunch of classes doesn't comply to our naming conventions for private variables. Resharper shows this as a warning, but wants me to fix all of them by hand. Is there some magic option to auto-fix these issues? 'Clean-up code' won't do anything with this. Same goes for converting properties with backing fields to automatic properties when possible: the hint is shown, but Resharper won't fix it automatically.

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  • asp.net profiles not working in global.asax?

    - by Martin Ongtangco
    Hello, i have a class that returns the parameters i've set in the profile properties in web.config. It works great on classes, but I cannot seem to make it work under the Global.asax? Here is how I get the parameter: public static string MissingPagePath { get { return HttpContext.Current.Profile.GetPropertyValue("MissingPage").ToString(); } } Help!

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  • Configuring a Jetty web application on a different port

    - by sHz
    Hi folks, I'm brand new to Jetty. I'd like to ask if its possible to have Jetty listening on port 8080, however where specified, serve a specific web application under say /var/jetty/webapps/<appname> (default on CentOS) served on say port 10000 instead of http://localhost:8080/<appname> i.e. http://localhost:10000/ = http://localhost:8080/<appname&gt; ? If so, what configuration changes would be required to make this work without an additional proxy server? I've googled away, but haven't found a solution (perhaps I've missed something obvious?).

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  • MyEclipse builds workspace on saving JSP page every time

    - by Tahir Akram
    Whenever I save a jsp page, MyEclipse IDE start building the workspace. It should build when I change in any class file. Or if there are classes that not compiled. But why it start building whole workspace when I change in a JSP file. I am stuck on it. Please advise me on this problem. I am using MyEclipse 5.5 over Eclipse 3.2 Thanks.

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  • UDK "Error, 'DefaultMesh': Bad command or expression"

    - by Ricket
    I'm porting UT3 code to UDK, and I am getting the following compile error with the UDK compiler: C:\UDK\UDK-2010-03\Development\Src\FixIt\Classes\ZPawn.uc(25) : Error, 'DefaultMesh': Bad command or expression The ZPawn class extends UTPawn. Line 25 is the following: DefaultMesh = SkeletalMesh(DynamicLoadObject(ZBotOwner(Owner).MeshToUse, class'SkeletalMesh')); Where did DefaultMesh go in UDK?

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  • The most efficient method of drawing multiple quads in OpenGL

    - by CPatton
    I'm not very keen with OpenGL and I was wondering if someone could give me some insight on this. I'm a 'seasoned' programmer, I've read the redbook about VBOs and the like, but I was wondering from a more experienced person about the best/most efficient way of achieving this. I've been producing this 2d tile-based game engine to be used in several projects. I have a class called "ScreenObject" which is mainly composed of a Dictionary<Point, Tile> The Point key is to show where to render the Tile on the screen, and the Tile contains one or more textures to be drawn at that point. This ScreenObject is where the tiles will be modified, deleted, added, etc.. My original method of drawing the tiles in the testing I've done was to iterate through the ScreenObject and draw each quad at each location separately. From what I've read, this is a massive waste of resources. It wasn't horribly slow in the testing, but after I've completed the animation classes and effect classes, I'm sure it would be extremely slow. And one last thing, if you wouldn't mind.. As I said before, the Tile class can contain multiple textures to be drawn at the Point location on the screen. I recognize possibly two options for me here. Either add a quad at that location for each texture to be drawn, or, somehow.. use a multiple texture for the same quad (if it's possible). Even if each tile contained one texture only, that would be 64 quads to be drawn on the screen. Most of the tiles will contain 2-5 textures, so the number of total quads would increase dramatically with this method. Would it be feasible to add a quad for each new texture, or am I ignoring a better way to do this? Just need some help understanding this if you don't mind :) I've tried to be as concise as possible, and I'd greatly appreciate any responses.. and even some criticism. Programming is often a learning process and one who develops seems to never stops learning. Thanks for your time.

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  • class, dict, self, init, args ?

    - by kame
    class attrdict(dict): def __init__(self, *args, **kwargs): dict.__init__(self, *args, **kwargs) self.__dict__ = self a = attrdict(x=1, y=2) print a.x, a.y b = attrdict() b.x, b.y = 1, 2 print b.x, b.y Could somebody explain the first four lines in words? I read about classes and methods. But here it seems very confusing.

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  • Strategies for very fast delivery of webpages.

    - by Cherian
    I run a website Cucumbertown with an initial pay load of nearly 9KB zipped. All my js is delayed loaded with requirejs and modernizer is the only exception. Now all my webpages are Nginx cached and only 10-15% hits go to the backend proxy. And the cache is invalidated by logged in users as proxy_cache_bypass. So for an anonymous user its nearly always a cache hit. I have some basic OS tuning with default via ip dev eth0 initcwnd 15 net.ipv4.tcp_slow_start_after_idle 0 Despite an all cache & large initcwnd my pages still take 2.5 – 3 seconds. I have a yslow score of And page speed at Are there strategies that can help deliver webpages even faster than this? Deliver pages at 1+ second time for 10KB payload? Notes: My servers run of a fairly good data center from Linode at Fremont.

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  • How to recover basic networking utilities on Debian?

    - by Rizo
    I am administrating a small server for LAN, providing basic services such as web-proxy, ldap, kerberos, afs, etc. Yesterday there was a power cut so server halted. When I restarted it no network interfaces were available and configured. I tried restarting networking daemon but it just exited with 0 status. So I tried to run one of the interfaces manually, but ifup and ifdown commands simply are not there. No only in PATH, but they disappeared from /sbin. So my question is: how can I recover these network utilities?

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  • EventDispatcher between an as and an fla?

    - by Christopher Richa
    Hi everyone. I am making a fighting game in Flash and while I have everything running, I am missing something: a victory/loss screen. Logically, I know how to do it: if character.hp < 0 { character.dead = true; dispatchevent("death", event) } My problem is that I have no idea as to how to code it. I know I will use two classes and my two .fla files (unless I am wrong). I have two .fla files that are in play here: the Menu.fla file and the Arena.fla file. Menu.fla contains the entire navigation of the game, options, character selection screens, etc. and when it is time for the player to engage in battle, it loads the Arena.fla file, which contains only the backgrounds (depending on the selected stage) and for now is set to a length of one frame only. For Arena.fla, the real action happens in my classes, but logically, I would only need HP.as and Character.as. In Character.as, I have declared the following variable: var isDead:Boolean = false; //is character dead? In HP.as, believe I should have the following: if(currentHp<0) { currentHp = 0; character.isDead = true; //declared as var `character:Object;` EventDispatcher.dispatchEventListener("playerDead", playerDead); } And finally, in Arena.fla, I want to be able to detect the above-mentioned eventlistener and simply move on to a second frame which will display a message in the style of "PLAYER ONE HAS WON" or "PLAYER ONE HAS LOST" with a button that will allow me to go back to the character selection screen. This is the first part in which I am stuck: how do I detect the dispatched event listener in my main .fla file? Secondly, if the player clicks on the "CONTINUE" button, which displays regardless if the player has won or lost, how can my Menu.fla (which loads the Arena.swf) detect this click event, unload the game, and go back to the character selection screen? Thank you in advance for helping me out. I realize this is a lot of text but it's the most descriptive I can be. If you have any questions or need any clarification concerning my question, feel free to speak up. -Christopher

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