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How to let Linux Python application handle termination on user logout correctly?

- by tuxpoldo

I have written a Linux GUI application in Python that needs to do some cleanup tasks before being terminated when the user logs out. Unfortunately it seems, that on logout, all applications are killed. I tried both to handle POSIX signals and DBUS notifications, but nothing worked. Any idea what I could have made wrong? On application startup I…

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how to handle db concurrency in client-server application in C#?

- by RAJ K

I am developing an application in C# WPF which will have Client-Server architecture (Client will do products sales billing). I am novice in this area and I asked this question to start my development process. Click here to view question. So, ultimately I have selected MySQl, WCf & WPF. Now I have one silly question. Do i need to handle DB…

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' send fail ' when server resource is unavailable-how can we handle such exceptions in flex ?

- by developer

' send fail ' when server resource is unavailable-how can we handle such exceptions in flex ? i designed Air Application which pulls data from Jetty server, at a time of loading application, but here is a exception is ...am getting 'Send Fail' when server resource is not available & [RPC Fault faultString="Send failed"…

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How to handle recursive parent/child problems like this?

- by lsdude

In web dev I come across these problems a lot. For example, we have a giant list of URLs that are in this format: /businesses /businesses/food /businesses/food/wendys /businesses/food/wendys/chili /businesses/food/wendys/fries /businesses/food/wendys/chicken-nuggets /businesses/pharmacy/cvs …

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Send Ctrl+Up to a window

- by dutt

I'm trying to send messages to a window that says Ctrl and Up-arrow has been pressed. I've got the basics down, I can send presses of the space key that registeres fine. But I can't seem to get the ctrl+up working. chosen code snippets: [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError =…

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How many xml http requests is too much for a pc to handle?

- by Uri

I'm running mediawiki on an apache on a regular pc running vista (don't know the specific specs, but I'm guessing at least duo core 2 2 giga hertz processor, broadband connection (500 kb/s at least, probably 1 mega). I want to use the MediaWiki api to send a lot of requests to this server. Most of…

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How to handle added input data colums without having to maintain multiple versions of SSIS packages?

- by GLFelger

I’m writing to solicit ideas for a solution to an upcoming problem. The product that provides data to our ETL process currently has multiple versions. Our clients are all using some version of the product, but not all use the same version and they will not all be upgraded at the same time. As…

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[grails + xfire] How to handle errors in SOAP services?

- by Mulone

Hi all, I'm implementing a web service on the xfire plugin. I was wondering how I'm supposed to handle the errors. I tried with this setup but the error is not returned to the SOAP client: GaSession[] myMethod( String userId ) throws MyException{ GaUser user = GaUser.findByUserId( userId ) …

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how to handle JavaScript objects with colons in key names?

- by Ethan

There is a syntax error in the following code: <!DOCTYPE html> <html> <body> Hello World! <script type="text/javascript"> var obj = {'a:b': '1'}; alert(obj.a:b); // syntax error </script> </body> </html> So how to handle…

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How to Get handle of a window and disable the Keyboard inputs using c# ?

- by srk

How to Get handle of a window and disable the Keyboard inputs using c# ?

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How many site visitors can my server handle? [closed]

- by coolboycsaba

I have a website, and I want to host it on my own computer, but I'm wondering if it's good enough. The website checks if the user is logged in and then displays 15 items (title, description) from a mysql database and the rating (stored in another database) and the comments (another database)…

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One Exception to Aggregate Them All

- by João Angelo

.NET 4.0 introduced a new type of exception, the AggregateException which as the name implies allows to aggregate several exceptions inside a single throw-able exception instance. It is extensively used in the Task Parallel Library (TPL) and besides representing a simple collection of…

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How to improve Windows Server 2008 R2 to handle many connections?

- by invisal

It has been a few days so far that I am trying to figure how to solve this problem. First of all, I am running a website with an average daily page view of 350,000. Previously, all ads management (tracking click and impression that each ads has served) and content were served in a…

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How to handle server failure in an n-tier architecture?

- by andy

Imagine I have an n-tier architecture in an auto-scaled cloud environment with say: a load balancer in a failover pair reverse proxy tier web app tier db tier Each tier needs to connect to the instances in the tier below. What are the standard ways of connecting tiers to make…

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smtpd_helo_restrictions = ..., reject_unknown_helo_hostname occasionally rejects mail I care about, how to handle?

- by lkraav

I have configured my postfix as follows: smtpd_helo_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unknown_helo_hostname This is working well because most spambots don't seem to have correct reverse lookups. But every once in a while I run into mail I care…

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Apache + Tomcat: Which one should handle SSL? IP-based proxy forwarding?

- by delirial

We currently have a Tomcat application running with SSL on port 443. Right now we have an apache server that accepts http requests on port 80 and redirects to the Tomcat instance: <VirtualHost *:80> ServerName domain.com ServerAlias domain.com <LocationMatch…

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The suggested way to handle pip(easy_install) with homebrew?

- by Drake

I know there are brew-gem and brew-pip but it is still really easy to get confused. Let's say my Mac OS X is 10.7.2. There are at least, as far as I know, 3 locations for Python modules (assume 2.7): /System/Library/Frameworks/Python.framework/Versions/2.7/…

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How best to handle end user notification in the event of system failure incl. email?

- by BrianLy

I've been asked to research ways of handling end user notifications when systems such as email are experiencing problems. Perhaps an example will make this a little clearer. We have a number of sites in different countries. Recently email was impacted at one…

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How to get a handle on all this middleware?

- by jkohlhepp

My organization has recently been wrestling the question of whether we should be incorporating different middleware products / concepts into our applications. Products we are looking at are things like Pegasystems, Oracle BPM / BPEL, BizTalk, Fair Isaac…

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How can I properly handle 404s in ASP.NET MVC?

- by Brian

I am just getting started on ASP.NET MVC so bear with me. I've searched around this site and various others and have seen a few implementations of this. EDIT: I forgot to mention I am using RC2 Using URL Routing: routes.MapRoute( …

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How to handle not-enough-isolatedstorage issue deep in data loader?

- by Edward Tanguay

I have a silverlight application which loads data from many external data sources into IsolatedStorage, and while loading any of these sources if it does not have enough IsolatedStorage, it ends up in a catch statement. At that point in that catch…

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Do ORMs normally allow circular relations? If so, how would they handle it?

- by SeanJA

I was hacking around trying to make a basic orm that has support for the one => one and one => many relationships. I think I succeeded somewhat, but I am curious about how to handle circular relationships. Say you had something like this: …

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DirectX: Game loop order, draw first and then handle input?

- by Ricket

I was just reading through the DirectX documentation and encountered something interesting in the page for IDirect3DDevice9::BeginScene : To enable maximal parallelism between the CPU and the graphics accelerator, it is advantageous to…

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How do you handle the tension between refactoring and the need for merging?

- by Xavier Nodet

Hi, Our policy when delivering a new version is to create a branch in our VCS and handle it to our QA team. When the latter gives the green light, we tag and release our product. The branch is kept to receive (only) bug fixes so that we can…

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How to handle 30k files in a project which requires them?

- by Jeremiah

Visual Studio 2010 RC - Silverlight Application We have a library of images that we need to have access to. They are given to us from a vendor (through an installer) and they are not in a database, they are files in a folder (a very large…

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