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• What could be a reason for cross-platform server applications developer to make his app work in multiple processes?

  - by Kabumbus

  We consider a server app development - heavily loaded with messing with big data streams. An app will be running on one powerful server. A server app will be developed in form of crossplatform application - working on Windows, Mac OS X and Linux. So same code, many platforms for stand alone server architecture. We wonder what are the benefits of distributing applications not only over threads but over processes as well, for programmers and server end users? Some people said to me that even having 48 cores, 4 process threads would be shared via OS through all cores, is that true?

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• Sample code and slides for my TechDays10 (Belgium) talks

  - by Laurent Bugnion

  The source code for my MVVM talk titled “Understanding the MVVM Pattern” given at TechDays 2010 in Antwerpen, Belgium, is available online. It is actually the same code than the MIX10 one, but I added the Windows Phone 7 MVVM Light application (available in the folder titled “Mix10.MvvmDemo2-End”. Note: before unpacking the zip file, you should right click on it, and select properties / Unblock. I also published the slides for my two talks: Understanding the MVVM Pattern A day in the life of a WPF/SL integrator As far as I know, the videos will be online soon, stay tuned and I will announce when it is the case. Get Started page for the MVVM Light Toolkit: http://www.galasoft.ch/mvvm/getstarted   Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

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• Best database setup for one click games

  - by ewizard

  I am building a one click game website/mobile app, and I am debating between using MySQL and MongoDB for the backend. The way I have been exploring it is with a NodeJS/Express/Angular/Passport/MongoDB stack - I have also implemented Socket.io. I have gotten to the point where I am sending data from the flash game to the server (NodeJS). The only data that needs to be sent is basic user information, the players score at the end of each game, and some x,y positions for each players game (for anti-cheating). It seems like MySQL would work fine, but as I am already using MongoDB - are there any major drawbacks to continuing to work with MongoDB on this project?

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• Some Problems Can't Be Outsourced

  - by mikef

  More and more companies are becoming attracted to the idea of Infrastructure as a Service (or IaaS). It would seem that you can outsource the provisioning and management of your services, encompassing everything from Email, through to your servers, workstations and software, all the way down to your LAN and internet services. This type of outsourcing can be a very attractive option for companies who have tight budgets who are short of technical skills or don't have the means to provide long-term IT support. Essentially, they can outsource your services at low short-term costs that are knowable and controllable, are quickly and easily scalable, and generate a minimum of hassle for your internal staff. If you want to get a sophisticated IT infrastructure set up in a hurry without the usual high buy-in costs, or the task of finding and hiring the right specialists. It would seem the way to go, particularly when their salesmen are hypnotizing you with oleaginous phrases such as "we are closely aligned with our client organization's core business requirements, providing agile services". It sounds too good to be true, and so it is. Whereas the costs will have initially been calculated on the annual renewal fees and service fees for ongoing support, there are other charges too which aren't so obvious. It can end up costing far more than the conventional solution once you take into account the extra costs, the fees for customization and upgrades. The Total Cost of Ownership (TCO) only becomes apparent when it is too late to extract the company easily from the arrangement. After a few years, these annual fees can add up to more than the initial cost of implementing a traditional in-house system. Worse than that is that you can then lose your power to determine your priorities: When you become reliant on this company, with its own schedule of priorities, to implement every change, however simple, you have effectively lost control of your technical infrastructure. This will make senior management very nervous. There is definitely a requirement for this sort of service. If you urgently need an exceptionally high class of service or more expertise than you currently possess, then outsourcing is probably for you. You and your IT colleagues will always have something to do, be it user assistance, smoothing out integrations with an external provider, or working on something entirely new. Heck, if you outsource to IBM, the SysAdmins can go along for the ride and polish their expertise. What you need to figure out is how much your time is worth, because time is ultimately all that outsourcing will buy you and your organization. Now you just need to convince your nervous CEO. Cheers, Michael

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• How do I migrate web files from a Plesk 8 installation (on a slaved HDD) to a Plesk 10.4.4 installation?

  - by Ranger

  Due to Plesk 8 being at End of Support our host setup a new installation of RHEL and Plesk 10 on a new hard drive. They then slaved the old drive to the new so that we could migrate all our files using SSH. I am having challenges correctly migrating the sub domain files. The path to subdomain root folder in Plesk 10.4.4 is confusing as I don't know where to copy the files to. The path to the files on the slaved drive is: "/mnt/old-drive/var/www/vhosts/domain_name.com/subdomains/SUBDOMAIN_NAME/", meanwhile on the new installation I have "/var/www/vhosts/SUBDOMAIN_NAME.domain_name.com". There is an httpdocs folder in the '/var/www/vhosts/domain_name' folder but none in the '/var/www/vhosts/SUBDOMAIN_NAME.domain_name.com' folder. Where do I copy my subdomain files to? Please help.

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• Most efficient way to generate 2D portraits

  - by user1221

  Hey, I am not sure if this is a fitting question for gamedev, or if it is too art related. I am currently trying, to create 2D character protraits for my game. At first I tried to draw them and even though it helped polishing my drawing skills the end result either required way too much time or it simply looked like it was created by a grade school kid. So I am currently looking into some tools which from which people like me who are not out of the art-world might benefit. Especially tools which can create a 3D head+hair, so that I can render them. I have tried several 3D generation tools such as makehead and makehuman to create the basic head-shape. But I have to admit I am not well versed in what other options are available/what has the best quality/etc.

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• What's the best way to sell ReSharper to management? [closed]

  - by Jackson Pope

  Possible Duplicate: How do you convince your boss to buy useful tools like Resharper, LinqPad? I've recently started a new job developing code in C# and ASP.Net. At a previous employer I've used ReSharper from JetBrains and I loved it. I've downloaded the free trial in my new job, as have several of my new colleagues on my recommendation. Everyone thinks it's great. But now our trials are coming to an end and it's time to buy or say goodbye. I've been reliably informed that getting money for tools from senior management is like trying to get blood from a stone, so how can I convince them to loosen their grip on the purse strings and buy it for our team (of seven developers)? Does anyone have any experience of convincing management of the benefits of refactoring tools? I feel the benefit every second I use it, but I'm having difficulty thinking of how to explain the concrete benefits to a manager who only think

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• Passing functions into other functions as parameters, bad practice?

  - by BlueHat

  We've been in the process of changing how our AS3 application talks to our back end and we're in the process of implementing a REST system to replace our old one. Sadly the developer who started the work is now on long term sick leave and it's been handed over to me. I've been working with it for the past week or so now and I understand the system, but there's one thing that's been worrying me. There seems to be a lot of passing of functions into functions. For example our class that makes the call to our servers takes in a function that it will then call and pass an object to when the process is complete and errors have been handled etc. It's giving me that "bad feeling" where I feel like it's horrible practice and I can think of some reasons why but I want some confirmation before I propose a re-work to system. I was wondering if anyone had any experience with this possible problem?

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• How many BasicEffects do you have in a Game? What is the best way to render multiple objects/shapes at once?

  - by Deukalion

  I'm trying to understand 3D rendering and it seems that everytime you render a new object (A 3D Cube or something) you need to have a new BasicEffect for each Box you render unless you want the exact same texture? ...so if I have over a hundred boxes with each different textures, I need at least as many BasicEffects? Will that not be "too much" for the CPU/GPU in the end or result in lagging? Is there any good way to render multiple objects (cubes or other shapes) at the same time? I've tried changing the BasicEffect.Texture with each cube drawn, but it resulting in changing the first Cube's texture too. Any suggestions would be really appreciated, I'm really new to 3D in XNA so I'm trying to wrap my head around the best methods for example render a Map with objects (of shapes).

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• Why ~/.bash_profile is not getting sourced when opening a terminal in Ubuntu 11.04?

  - by Viriato

  Problem I have an Ubuntu 11.04 Virtual Machine and I wanted to set up my Java development environment. I did as follows sudo apt-get install openjdk-6-jdk Added the following entries to ~/.bash_profile export JAVA_HOME=/usr/lib/jvm/java-6-openjdk export PATH=$PATH:$JAVA_HOME/bin Save the changes and exit Open up a terminal again and typed the following echo $JAVA_HOME (blank) echo $PATH (displayed, but not the JAVA_HOME value) Nothing happened, like if the export of JAVA_HOME and it's addition to the PATH were never done. Solution I had to go to ~/.bashrc and add the following entry towards the end of file #Source bash_profile to set JAVA_HOME and add it to the PATH because for some reason is not being picked up . ~/.bash_profile Questions Why did I have to do that? I thought bash_profile, bash_login or profile in absence of those two get executed first before bashrc. Was in this case my terminal a non-login shell? If so, why when doing su after the terminal and putting the password it did not execute profile where I had also set the exports mentioned above?

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• Coming back from (blog) retirement

  - by leo.pasta

  So, it has been more than 3 years without a single blog post. I wished I could have a decent excuse for it, but in the end, I guess it boils down to laziness and procrastination. :-) Even though I learned a lot in that period (and added a feel tricks to my bag), I couldn’t find the will to sit down and write. I hope all my readers (yes mom and dad, I’m talking to you) have not been disappointed. I will try really hard not to let routine take over. I don’t expect I will be the most active blogger in the community, but hopefully a couple of posts per month is a good target to aim.

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• career change : non-functional to test automation

  - by centennial

  I started my Career as core-Java developer 6 years ago and stayed as developer for 6-7 month and then moved to performance testing (actualy pushed into this for short term and later I started liking it). I have done all sort of non-functional testing like performance, load, stress, soak, compatibility, failover etc on many performance test tools accross many industries. I was doing contracting all these years which means I kept moving to new projects after every 3-6 months. Now personal situation has been changed, married man now so looking for something long term. Performance testing generally comes at the end of the development life cycle hence very short term contracts so I was wondering if I can move into functional/test automation side I can earn myself good length of contract. I had some exposure of QTP but I am sure to learn all other tools very quickly as I am quite good in programming and concept of testing. in short I want to move into functional test automation to get long term contract without leaving my love for programming . any thoughts please ?

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• SSMS Tools Pack 1.9.4 is out! Now with SQL Server 2011 (Denali) CTP1 support.

  - by Mladen Prajdic

  To end the year on a good note this release adds support for SQL Server 2011 (Denali) CTP1 and fixes a few bugs. Because of the new SSMS shell in SQL 2011 CTP1 the SSMS Tools Pack 1.9.4 doesn't have regions and debug sections functionality for now. The fixed bugs are: A bug that prevented to create insert statements for a database A bug that didn't script commas as decimal points correctly for non US settings. A bug with searching through grid results. A threading bug that sometimes happened when saving Window Content History. A bug with Window Connection Coloring throwing an error on startup if a server colors was undefined. A bug with changing shortcuts in SSMS for various features. You can download the new version 1.9.4 here. Enjoy it!

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• Oracle Technology Network Architect Day &ndash; Next Stop: Big D

  - by Bob Rhubart

  Registration is now open for the Architect Day events in Dallas TX (5/13), Redwood Shores CA (5/18), and  Anaheim CA (5/19). These events are free and offer a full slate of presentations and discussions covering a broad range of topics of interest to architects. The agenda for each location includes guest keynotes by members of the Oracle ACE community, breakout sessions, panel discussions, and  roundtable discussions in which all attendees get a chance share their insight and expertise. All that, and you get a free lunch plus an end of day reception. What’s not to like? Seating for these free events is limited, so if you snooze, you lose. I’ll be at the Dallas event. Hope to see you there.   Technorati Tags: oracle,oracle technology network,software architect,events,conference del.icio.us Tags: oracle,oracle technology network,software architect,events,conference

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• Call for Paper: Oracle OpenWorld 2011

  - by jean-pierre.dijcks

  OpenWorld 2011 is now open for the public to submit session proposals. We would like to encourage our customers, and partners to participate in this ‘call for papers” (CFP) process. CFP for the general public, non-Oracle employee submitters, closes on March 27, 2011. Here are the details: Conference Location: Moscone Convention Center, San Francisco, CA. Conference Date: Sunday - Thursday, October 2 - 6, 2011 Conference Website: http://www.oracle.com/us/openworld CFP Website: https://oracleus.wingateweb.com/portal/cfp/ Paper submission key dates: Deliverables Due Dates Call for Papers Begins Wednesday, March 9 Call for Papers Ends Sunday, March 27 – 11:59 pm PDT Notifications for Accepted and Declined Submissions Sent End of May Questions regarding the Call for Papers, send an email to [email protected]

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• The Problem Should Define the Process, Not the Tool

  - by thatjeffsmith

  All around awesome tool, but not the only gadget in your toolbox.I’m stepping down from my SQL Developer pulpit today and standing up on my philosophical soap box. I’m frequently asked to help folks transition from one set of database tools over to Oracle SQL Developer, which I’m MORE than happy to do. But, I’m not looking to simply change the way people interact with Oracle database. What I care about is your productivity. Is there a faster, more efficient way for you to connect the dots, get from A to B, or just get home to your kids or to the pub for happy hour? If you have defined a business process around a specific tool, what happens when that tool ‘goes away?’ Does the business stop? No, you feel immediate pain until you are able to re-implement the process using another mechanism. Where I get confused, or even frustrated, is when someone asks me to redesign our tool to match their problem. Tools are just tools. Saying you ‘can’t load your data anymore because XYZ’ isn’t valid when you could easily do that same task via SQL*Loader, Create Table As Selects, or 9 other different mechanisms. Sometimes changes brings opportunity for improvement in the process. Don’t be afraid to step back and re-evaluate a problem with a fresh set of eyes. Just trying to replicate your process in another tool exactly as it was done in the ‘old tool’ doesn’t always make sense. Quick sidebar: scheduling a Windows program to kick off thousands if not millions of table inserts from Excel versus using a ‘proper’ server process using SQL*Loader and or external tables means sacrificing scalability and reliability for convenience. Don’t let old habits blind you to new solutions and possibilities. Of couse I’m not going to sit here and say that our tools aren’t deficient in some areas or can’t be improved upon. But I bet if we work together we can find something that’s not only better for the business, but is also better for you. What do you ‘miss’ since you’ve started using SQL Developer as your primary Oracle database tools? I’d love to start a thread here and share ideas on how we can better serve you and your organizations needs. The end solution might not look exactly what you have in mind starting out, but I had no idea I’d be a Product Manager when I started college either What can you no longer ‘do’ since you picked up SQL Developer? What hurts more than it should? What keeps you from being great versus just good?

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• How do you take into account usability and user requirements for your application?

  - by voroninp

  Our team supports BackOffice application: a mix of WinForm and WPF windows. (about 80 including dialogs). Really a kind of a Swiss Army Knife. It is used by developers, tech writers, security developers, testers. The requirements for new features come quite often and sometimes we play Wizard of Oz to decide which GUI our users like the most. And it usually happens (I admit it can be just my subjective interpretation of the reality) that one tiny detail giving the flavor of good usability to our app requires a lot of time. This time is being spent on 'fighting' with GUI framework making it act like we need. And it very difficult to make estimations for this type of tasks (at least for me and most members of our team). Scrum poker is not a help either. Management often considers this usability perfectionism to be a waste of time. On the other hand an accumulated affect of features where each has some little usability flaw frustrates users. But the same users want frequent releases and instant bug fixes. Hence, no way to get the positive feedback: there is always somebody who is snuffy. I constantly feel myself as competing with ourselves: more features - more bugs/tasks/architecture. We are trying to outrun the cart we are pushing. New technologies arrive and some of them can potentially help to improve the design or decrease task implementation time but these technologies require learning, prototyping and so on. Well, that was a story. And now is the question: How do you balance between time pressure, product quality, users and management satisfaction? When and how do you decide to leave the problem with not a perfect but to some extent acceptable solution, how often do you make these decisions? How do you do with your own satisfaction? What are your priorities? P.S. Please keep in mind, we are a BackOffice team, we have neither dedicated technical writer nor GUI designer. The tester have joined us recently. We've much work to do and much freedom concerning 'how'. I like it because it fosters creativity but I don't want to become too nerdy perfectionist.

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• Xubuntu LightDM shows blank screen half the time

  - by Sman789

  System info: (will be amended if any more info is asked for) My laptop runs Xubuntu 12.10. As it has a Solid State Drive, /tmp, /var/tmp, /var/log and /var/log/apt are set to tmpfs in the /etc/fstab file - in case this makes any difference. Problem My problem is quite simple. Approximately 50% of boot attempts end in the mouse cursor on a black screen (presumably LightDM failing to load), forcing me to restart and try again. I can access the CTRL+ALT+F1 terminal to reboot the machine, but it's very annoying having to boot and reboot two or three times before one works. Oh, and this problem is the same whether I use the Xubuntu or Unity greeter. Thanks for any help you can give.

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• Gradient and window re sizing with css [migrated]

  - by guisasso

  The situation: A table with width set to 100%, that has a cell inside with 1000px width. The table is centered, and so is the cell. I would like to have a gradient from left to right, and right to left that would end at the beginning of the centered cell, with the same color as the cell. The problem is, to occupy the whole page, no matter what size the browser is, the table is set to 100%, the cell is set to 1000px so it'll never change its size, How can i achieve, if possible, what i want, making sure that in smaller resolutions/monitors or with window re sizing, the gradient will stop at the beginning of that cell, since gradients are set with percentage?

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• How to redirect keeping the referral without server-side redirects?

  - by sergilazaro

  I have an HTML page hosted in Dropbox that some external websites link to. I want to redirect to a different page using only HTML or Javascript, since I can't use any server-side redirects. My goal is to be able to keep the original referral information for analytics. I've tried different ways but they all end up showing up with no referral. So if a blog that I have no control over (B) links to my public static page on Dropbox (D), and I want a redirect to the new page hosted elsewhere (N), I would like for the analytics for N to be shown as B, not D. Is that even possible?

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• Android loading screens blocking, good practice?

  - by Oren

  I've noticed many (if not all) android games don't support the "back" button functionality during their loading screens. Which leads to some frustrating moments when a user accidentally starts up the game and has to wait for the long loading stage to end in order to close it. So my questions are: 1) Why is that ? Is there a good reason to avoid something like asynchronous loading (or some other solution to this problem) in android games ? 2) If there is no good reason not to support this functionality, what would be the best way to accomplish it ?

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• All windows decorations disappear after I maximize any window

  - by korda

  When I maximize some of the windows all decorations disappear (by all, I mean on all windows)... Is that common issue on Unity or I'm just unlucky to have some prone to that bug configuration? Anyone have idea how to fix this? It won't fix after unmaximize. It seems like maximazing window simply crashes window decorator. Decoration isn't displayed for all existing windows and any new ones. Only way I found to fix this is to run compiz --replace (but this ruins current windows placement - all windows end up on same desktop). It happens almost every time I maximize window.

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• Can decoupling hurt maintainability in certain situations?

  - by Ceiling Gecko

  Can the fact that the business logic is mapped to interfaces instead of implementations actually hinder the maintenance of the application in certain situations? A naive example with the Java's Hibernate framework would be, that for example (provided I don't have the whole code-base in my head, the project structure is a mess and classes are named with arbitrary names) if I wish to see what's going on in a certain DAO, to see if it actually is doing what it's supposed to do, then instead of traversing backwards up the tree from the point where the data service is invoked (where the tree will end in an interface with no implementation details whatsoever apart from the signature) I have to for example go and look for a configuration XML file to see which class is mapped to said interface as the implementation before being able to access the actual implementation details. Are there any situations where having loose coupling can actually hurt maintainability?

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• Cost of Web Server that hosted and delivered text only

  - by slandau

  We are developing an application that needs a web server to interact with the two (or more) entities involved. They will not ever see anything on the web, but the server is required for the transfer of data between them. It's sort of a holding point. Now, the only thing the server is going to be holding is textual data. The two entities are going to be doing the work with the data. I was wondering what the cost of this type of server would be. Since it would be JUST a database with no front end, would it make sense to employ a service through Amazon or Google that just holds data for me to access instead of buying a server and making my own database? The amount of data can grow very large however it's only text, and all data over a day old will be deleted for the most part every day. Thanks!

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• Ubuntu stops letting wired or wireless mice click through after a short while

  - by Jonathan Chan

  Hi! I have a very confusing problem that renders Ubuntu near unusable. Whenever I try to use any wired or wireless mouse with my Ubuntu 10.10 install, clicks stop going through - often times, this blockage of clicks happens in less than a minute. Sometimes no clicks are accepted, other times, clicks are accepted in certain windows and denied in others. The end result is the same, and I am forced to resort to using the keyboard to navigate. If anyone could help me resolve this problem, I would be very appreciative, as it would finally allow me to try Ubuntu. Thanks!

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