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  • Require a specific version of ActiveRecord

    - by magnushjelm
    I have both Rails 2.3.4 and Rails 3.0.0.beta installed on my local machine. I am using ActiveRecord in a stand alone ruby script and when I do require 'active_record' 3.0.0.beta is loaded. How can I force it to require 2.3.4 instead? (without uninstalling 3.0.0.beta)

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  • Parse string with bash and extract number

    - by cleg
    Hello I've got supervisor's status output, looking like this. frontend RUNNING pid 16652, uptime 2:11:17 nginx RUNNING pid 16651, uptime 2:11:17 redis RUNNING pid 16607, uptime 2:11:32 I need to extract nginx's PID. I've done it via grep -P command, but on remote machine grep is build without perl regular expression support. Looks like sed or awk is exactly what I need, but I don't familiar with them. Please help me to find a way how to do it, thanks in advance.

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  • 3 tier with ASP.NET, C# and Oracle 11g

    - by ephraim
    Hi I am new to .NET, want to follow N-tier approach using Visual Studio 2010(ASP.NET MVC + C#),IIS and Oracle 11g(installed on the remote linux machine). I need to have Presentation, Business Logic, Data Access and Data Tiers. Can anyone give me site/example application with the following fuctionality: insert, retrieve, delete and update/modify data in the database. A step by step guide will be highly appreciated. Thank you in advance

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  • java: how can i set the compatibility mode of a native .exe?

    - by Jakob
    So i have a native executable (both for OS X and Windows) tucked inside a .jar, which is then programatically extracted to a temp location and executed from there. Unfortunately this executable will not run properly on my Windows machine (Win 7 64bit), when i manually set the compatibility mode to a Windows XP preset however, it will work. Is there a way i can do this programatically from Java?

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  • convert to quewety keybord

    - by lamisse
    hello I'm programming in java using frensh local machine (azerty keybord) I like to type a a text with certain character ("test: hello") but when I launch the test, only "test" is displayed is there methods java allowing to convert":" to the equivalent in quewerty ? thanks

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  • Is there a compiled* programming language with dynamic, maybe even weak typing?

    - by sub
    I wondered if there is a programming language which compiles to machine code/binary (not bytecode then executed by a VM, that's something completely different when considering typing) that features dynamic and/or weak typing, e.g: Think of a compiled language where: Variables don't need to be declared Variables can be created doing runtime Functions can return values of different types Questions: Is there such a programming language? (Why) not? I think that a dynamically yet strong typed, compiled language would really sense, but is it possible?

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  • What are the recommended BEST CASE hardware requirements for TFS 2010

    - by Doug
    Hi guys, i have installed TFS 2010 in a 2 server setup with an App Tier server and a SQL Server and am not 100% happy with the performance. Both are running in VM's on SAN disks and have been given the following virtual hardware each: Windows 2008 R2 1 CPU @ 2.8Ghz 2gb RAM what should i lift - neither machine is hammered but both do go up to 80% when people are doing things on them - should i add another CPU to each - usually this is now required in a VMWARE setup but i don't know if TFS 2010 takes advantage of an extra core??? thank you in advance :-)

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  • How to deinstall mysql?

    - by Kovu
    Hi, I sit on this problem ~5 hours: I try to install php and mysql on my iis7 machine. After install mysql, I can't connect, PW error (Im sure its not btw). I try to deinstall but after a new install, the database is the same. System is Windows Server Standart SP2 (I don't know hich Windows Server is it, its the only information I get under "system")

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  • Setup a https client in Java

    - by Albinoswordfish
    I'm very new to HTTPS/SSL so excuse my lack of knowledge. Right now I'm trying to setup a simple Java client in which it connects to a web server through HTTPS. I've seen some example code online but can't seem to really make sense of it. Also I was wondering if there is a difference between setting it up on a Windows machine compared to another type of OS. If anybody knows a good tutorial on this or can head me towards the right direction it would be appreciated.

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  • TcpListener is queuing connections faster than I can clear them

    - by Matthew Brindley
    As I understand it, TcpListener will queue connections once you call Start(). Each time you call AcceptTcpClient (or BeginAcceptTcpClient), it will dequeue one item from the queue. If we load test our TcpListener app by sending 1,000 connections to it at once, the queue builds far faster than we can clear it, leading (eventually) to timeouts from the client because it didn't get a response because its connection was still in the queue. However, the server doesn't appear to be under much pressure, our app isn't consuming much CPU time and the other monitored resources on the machine aren't breaking a sweat. It feels like we're not running efficiently enough right now. We're calling BeginAcceptTcpListener and then immediately handing over to a ThreadPool thread to actually do the work, then calling BeginAcceptTcpClient again. The work involved doesn't seem to put any pressure on the machine, it's basically just a 3 second sleep followed by a dictionary lookup and then a 100 byte write to the TcpClient's stream. Here's the TcpListener code we're using: // Thread signal. private static ManualResetEvent tcpClientConnected = new ManualResetEvent(false); public void DoBeginAcceptTcpClient(TcpListener listener) { // Set the event to nonsignaled state. tcpClientConnected.Reset(); listener.BeginAcceptTcpClient( new AsyncCallback(DoAcceptTcpClientCallback), listener); // Wait for signal tcpClientConnected.WaitOne(); } public void DoAcceptTcpClientCallback(IAsyncResult ar) { // Get the listener that handles the client request, and the TcpClient TcpListener listener = (TcpListener)ar.AsyncState; TcpClient client = listener.EndAcceptTcpClient(ar); if (inProduction) ThreadPool.QueueUserWorkItem(state => HandleTcpRequest(client, serverCertificate)); // With SSL else ThreadPool.QueueUserWorkItem(state => HandleTcpRequest(client)); // Without SSL // Signal the calling thread to continue. tcpClientConnected.Set(); } public void Start() { currentHandledRequests = 0; tcpListener = new TcpListener(IPAddress.Any, 10000); try { tcpListener.Start(); while (true) DoBeginAcceptTcpClient(tcpListener); } catch (SocketException) { // The TcpListener is shutting down, exit gracefully CheckBuffer(); return; } } I'm assuming the answer will be related to using Sockets instead of TcpListener, or at least using TcpListener.AcceptSocket, but I wondered how we'd go about doing that? One idea we had was to call AcceptTcpClient and immediately Enqueue the TcpClient into one of multiple Queue<TcpClient> objects. That way, we could poll those queues on separate threads (one queue per thread), without running into monitors that might block the thread while waiting for other Dequeue operations. Each queue thread could then use ThreadPool.QueueUserWorkItem to have the work done in a ThreadPool thread and then move onto dequeuing the next TcpClient in its queue. Would you recommend this approach, or is our problem that we're using TcpListener and no amount of rapid dequeueing is going to fix that?

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  • Fatal error: Call to undefined function msg_get_queue()

    - by dan.codes
    I am trying to run a script on my local machine, I am on MAC OSX leopard. I have PHP 5.2.x installed and Apache2. I am trying to test this script but I keep getting this error. I googled around a little and saw something where it said it might only be available on linux/unix machines but I find that hard to believe.

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  • Can I use mono's AOT feature to natively "pre-compile" .NET DLLs/EXEs to make them harder to reverse

    - by Jared Updike
    Can I use mono's AOT (Ahead of Time compilation) feature to natively "pre-compile" all or part of some of my own .NET DLLs (and or EXEs) to make them harder to reverse engineer? I'm using Windows (7 / x64 but I have an x86 XP machine as well) and .NET 3.5 (VS 2008) and I'm curious if mono/AOT can be/has been used for this purpose? (Tying them to x86 is acceptable at this point.) See also this question where I tried this and had no luck.

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  • HTTP basic authentication via URL doesn't work with Firefox?

    - by Peter
    Normally you can login to sites that require HTTP basic authentication by passing the username and password in the URL, e.g.: http://myusername:[email protected]/mypath On my Linux machine, I could access this website without problems with my Konqueror browser as well as with my Opera browser. But with Firefox it doesn't work? It always displays the "Authentication Required" dialog window? Any ideas why it would work with the other browsers but not with Firefox? Peter

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  • Listing available COM Objects with Powershell

    - by outtacontrol
    I am currently using the following script to list the available COM Objects on my machine. $path = "REGISTRY::HKEY_CLASSES_ROOT\CLSID\*\PROGID" foreach ($obj in dir $path) { write-host $obj.GetValue("") } I read on another website that the existence of the InProcServer32 key is evidence that the object is 64 bit compatible. So using powershell how can I determine the existence of InProcServer32 for each COM Object? If that is even the correct way of establishing whether it is 32 bit or 64 bit.

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  • Selenium IDE and Drupal

    Can I use Selenium IDE on a Drupal system? I found http://drupal.org/project/selenium but that involves downloading Core and not using my current machine. Does anybody know of a way to use the IDE with Drupal, or if not what do you suggest I do?

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  • Mac OS on a Windows PC

    - by HDawg
    I've done a little bit of reading on the topic, but nothing too clear has turned up. Why is it so difficult to run Mac OS on a virtual machine on a PC? Some sources say it's because of hardware architecture. Is there a clear, definitive reason?

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  • sqlite over network share for failover

    - by reinier
    As a follow-up of this question: sqlite-over-a-network-share If I put the SQlite DB on a network share, but will not access it concurrently from different machines. I only have the SQLite db stored on a share so a cluster of failover computers can take over where one machine left off. Are there any inherent problems with that approach?

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  • ruby on rails setup on my ubuntu

    - by hiren
    Do I need to set up virtual hosts as mentioned here: http://wiki.rubyonrails.org/deployment/apache-passenger I am just setting up dev env on my own machine to try and learn ruby on rails. thanks in advance.

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  • Application Freezing after some idle time

    - by Rakib Hasan
    Hello, I am developing a software using C# 2.0 which uses about 200MB of memory and occasionally high CPU. The problem is, when i am leaving my machine idle for about 20-30 mins with the application running, after i come back and try to use the application, it freezes for about 2 mins, then becomes interactive. Why does this happen? Is there any way to avoid this? Thank you all. Regards, -Rakib

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