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  • File versioning software

    - by blade7
    Hi, I am looking for some software which can version control all my files on my OS (For Windows Server). So I can go back to a file 5 versions old. I know Genie can do this but I have BackupAssist for backups which Genie also does. I need an app that just offers the above.

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  • Looking for Hard Drive Health Monitoring software

    - by RandyMorris
    I am aware that the current standard method of drive redundancy and backups would be a better solution, but I would be interested if there was a software that could be installed on workstation computers that could monitor hard drive health and give a warning if the drive looks like a failure is imminent. I have tried hdd health but it does not give me very useful information. I am not interested in drive space, just want a heads up before a drive failure. Anyone know anything like this?

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  • Is there software to automatically change song speed without transposing it

    - by Peter P
    Goal: automatically adjusting speed (bpm) of a given set of MP3 files in order to have a collection of music optimized to be heard when I am running. (I realized that I prefer to run with about 168 bpm in my ears). Of course, I could have some software to detect BPM and then calculate and stretch/squeeze each song using Audacity or a similar tool, however, I'd prefer a solution which requires less manual operation.

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  • Custom metadata fields in Windows file manager (or other software)

    - by Dave Gaebler
    I'm trying to organize a collection of maybe 500 or so journal articles, stored in a combination of .pdf and .djvu formats. I'd like to be able to sort the collection by author(s), title, journal name, year, and subject keywords. Is there a way to create metadata fields for this information in the Windows file system (similar to how .mp3 files come with tags for album, title, track length, etc)? Or, if not, is there some software (preferably free) that can do something similar?

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  • Use Google Chrome to download a software, but the software is in Chinese?

    - by VictorPrograss
    I am recently using Google Chrome to download software installation files from an English authorized website. But, when I installed them on my computer, they appeared to be in Chinese (I am using a Chinese version of Windows 7). However, it was weird that the built-in web browser in one of those softwares searches up English help contents. Could you please tell me what's going on over here?? Thank you very much!!

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  • Why do many software projects fail today?

    - by TomTom
    As long as there are software projects, the world is wondering why they fail so often. I would like to know if there is a list or something equivalent which shows how many software projects fail today. Would be nice if there would be a comparison over the last 20 - 30 years. You can also add your top reason why a software project fails. Mine is "Requirements are poor or not even existing." which includes also "No (real) customer / user involved". EDIT: It is nearly impossible to clearly define the term "fail". Let's say that fail means: The project was more than 10% over budget and time. In my opinion the 10% + / - is a good range for an offer / tender. EDIT: Until now (Feb 11) it seems that most posters agree that a fail of the project is basically a failure of the project management (whatever fail means). But IMHO it comes out, that most developers are not happy with this situation. Perhaps because not the manager get penalized when a project was not successful, but the lazy, incompetent developer teams? When I read the posts I can also hear-out that there is a big "gap" between the developer side and the managment side. The expectations (perhaps also the requirements) seem to be so different, that a project cannot be successful in the end (over time / budget; users are not happy; not all first-prio features implemented; too many bugs because developers were forced to implement in too short timeframes ...) I',m asking myself: How can we improve it? Or do we have the possibility to improve it? Everybody seems to be unsatisfied with the way it goes now. Can we close the gap between these two worlds? Should we (the developers) go on strike and fight for "high quality reqiurements" and "realistic / iteration based time shedules"? EDIT: Ralph Westphal and Stefan Lieser have founded a new "community" called: Clean-Code-Developer. The aim of the group is to bring more professionalism into software engineering. Independently if a developer has a degree or tons of years of experience you can be part of this movement. Clean Code Developers live principles like SOLID every day. A professional developer is the biggest reviewer of his own work. And he has an internal value system which helps him to improve and become better. Check it out on: Clean Code Developer EDIT: Our company is doing at the moment a thing called "Application Development and Maintenance Benchmarking". This is a service offered by IBM to get a feedback from someone external on your software engineering process quality etc. When we get the results, I will tell you more about it.

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  • Screen scraping software that will traverse pages

    - by nilbus
    We're creating a mashup site that pulls information from many sources all over the web. Many of these sites don't provide RSS feeds or APIs to access the information they provide. This leaves us with screen scraping as our method for collecting the data. There are many scripting tools out there written in different scripting languages for screen scraping that require you to write scraping scripts in the language the scraper was written in. Scrapy, scrAPI, and scrubyt are a few written in Ruby and Python. There are other web-based tools I've seen like Dapper that create XML or RSS feeds based on a webpage. It has a beautiful web-based interface that requires no scripting skills to use. This would be a great tool, if it were able to traverse multiple pages to gather data from hundreds pages of results. We need something that will scrape information from paginated web sites, much like scrubyt, but with a user interface that a non-programmer could use. We'll script up our own solution if we need to, probably using scrubyt, but if there's a better solution out there, we want to use it. Does anything like this exist?

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  • Bash script: bad interpreter

    - by Quandary
    Question: I get this error message: export: bad interpreter: No such file or directory when I execute this bash script #!/bin/bash MONO_PREFIX=/opt/mono-2.6 GNOME_PREFIX=/opt/gnome-2.6 export DYLD_LIBRARY_PATH=$MONO_PREFIX/lib:$DYLD_LIBRARY_PATH export LD_LIBRARY_PATH=$MONO_PREFIX/lib:$LD_LIBRARY_PATH export C_INCLUDE_PATH=$MONO_PREFIX/include:$GNOME_PREFIX/include export ACLOCAL_PATH=$MONO_PREFIX/share/aclocal export PKG_CONFIG_PATH=$MONO_PREFIX/lib/pkgconfig:$GNOME_PREFIX/lib/pkgconfig PATH=$MONO_PREFIX/bin:$PATH PS1="[mono-2.6] \w @ " But the bash path seems to be correct: asshat@IS1300:~/sources/mono-2.6# which bash /bin/bash asshat@IS1300:~# cd sources/ asshat@IS1300:~/sources# cd mono-2.6/ asshat@IS1300:~/sources/mono-2.6# ./mono-2.6-environment export: bad interpreter: No such file or directory asshat@IS1300:~/sources/mono-2.6# ls download mono-2.4 mono-2.4-environment mono-2.6 mono-2.6-environment asshat@IS1300:~/sources/mono-2.6# cp mono-2.6-environment mono-2.6-environment.sh asshat@IS1300:~/sources/mono-2.6# ./mono-2.6-environment.sh export: bad interpreter: No such file or directory asshat@IS1300:~/sources/mono-2.6# ls download mono-2.4-environment mono-2.6-environment mono-2.4 mono-2.6 mono-2.6-environment.sh asshat@IS1300:~/sources/mono-2.6# bash mono-2.6-environment asshat@IS1300:~/sources/mono-2.6# What am I doing wrong? Or is this a Lucid bug? [i did chmod + x]

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  • aptitude update gives 404's for intrepid

    - by dotjoe
    I'm having issues trying to update my packages. I haven't used this server since last September and now I'm getting 404 errors on all the intrepid repos. How do I fix this? Thanks aptitude update Err http://security.ubuntu.com intrepid-security/main Packages 404 Not Found [IP: 91.189.92.166 80] Err http://security.ubuntu.com intrepid-security/restricted Packages 404 Not Found [IP: 91.189.92.166 80] Err http://security.ubuntu.com intrepid-security/main Sources 404 Not Found [IP: 91.189.92.166 80] Err http://security.ubuntu.com intrepid-security/restricted Sources 404 Not Found [IP: 91.189.92.166 80] Err http://security.ubuntu.com intrepid-security/universe Packages 404 Not Found [IP: 91.189.92.166 80] Err http://security.ubuntu.com intrepid-security/universe Sources 404 Not Found [IP: 91.189.92.166 80] Ign http://us.archive.ubuntu.com intrepid-updates/multiverse Packages Ign http://us.archive.ubuntu.com intrepid-updates/multiverse Sources Err http://us.archive.ubuntu.com intrepid/main Packages 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid/restricted Packages 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid/main Sources 404 Not Found [IP: 91.189.88.31 80] Err http://security.ubuntu.com intrepid-security/multiverse Packages 404 Not Found [IP: 91.189.92.166 80] Err http://us.archive.ubuntu.com intrepid/restricted Sources 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid/universe Packages 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid/universe Sources 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid/multiverse Packages 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid/multiverse Sources 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid-updates/main Packages 404 Not Found [IP: 91.189.88.31 80] Err http://security.ubuntu.com intrepid-security/multiverse Sources 404 Not Found [IP: 91.189.92.166 80] Err http://us.archive.ubuntu.com intrepid-updates/restricted Packages 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid-updates/main Sources 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid-updates/restricted Sources 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid-updates/universe Packages 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid-updates/universe Sources 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid-updates/multiverse Packages 404 Not Found [IP: 91.189.88.31 80] Err http://us.archive.ubuntu.com intrepid-updates/multiverse Sources 404 Not Found [IP: 91.189.88.31 80] Reading package lists... sources.list # # deb cdrom:[Ubuntu-Server 8.10 _Intrepid Ibex_ - Release i386 (20081028.1)]/ intrepid main restricted # deb cdrom:[Ubuntu-Server 8.10 _Intrepid Ibex_ - Release i386 (20081028.1)]/ intrepid main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ intrepid main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ intrepid-updates main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ intrepid universe deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid universe deb http://us.archive.ubuntu.com/ubuntu/ intrepid-updates universe deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ intrepid multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid multiverse deb http://us.archive.ubuntu.com/ubuntu/ intrepid-updates multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid-updates multiverse ## Uncomment the following two lines to add software from the 'backports' ## repository. ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. # deb http://us.archive.ubuntu.com/ubuntu/ intrepid-backports main restricted universe multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. This software is not part of Ubuntu, but is ## offered by Canonical and the respective vendors as a service to Ubuntu ## users. # deb http://archive.canonical.com/ubuntu intrepid partner # deb-src http://archive.canonical.com/ubuntu intrepid partner deb http://us.archive.ubuntu.com/ubuntu/ intrepid-security main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid-security main restricted deb http://us.archive.ubuntu.com/ubuntu/ intrepid-security universe deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid-security universe deb http://us.archive.ubuntu.com/ubuntu/ intrepid-security multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ intrepid-security multiverse

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  • I Can't Install or Remove Any Application

    - by berkay gürsoy
    when i try to install or remove an application via either software center or apt-get install they both fail and give some debconf errors below is the log please help.Sorry some of the text is not english. sudo apt-get install aptitude Paket listeleri okunuyor... Bitti Bagimlilik agaci insa ediliyor. Durum bilgisi okunuyor... Bitti Asagidaki ek paketler de yüklenecek: aptitude-common libboost-iostreams1.49.0 libcwidget3 Önerilen paketler: aptitude-doc-en aptitude-doc tasksel debtags libcwidget-dev Asagidaki YENI paketler kurulacak: aptitude aptitude-common libboost-iostreams1.49.0 libcwidget3 Yükseltilen: 0, Yeni Kurulan: 4, Kaldirilacak: 0 ve Yükseltilmeyecek: 48. 8 tam olarak kurulmadi veya kaldirilmadi. Indirilmesi gereken dosya boyutu 0 B/2.498 kB Bu islemden sonra 10,4 MB ek disk alani kullanilacak. Devam etmek istiyor musunuz [E/h]? e Use of uninitialized value in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line 46, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in -d at /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3. debconf: DbDriver "config": mkdir :Böyle bir dosya ya da dizin yok Selecting previously unselected package aptitude-common. dpkg: uyari: files list file for package 'aspell' missing; assuming package has no files currently installed dpkg: uyari: files list file for package 'ubuntu-desktop' missing; assuming package has no files currently installed dpkg: uyari: files list file for package 'vuze' missing; assuming package has no files currently installed dpkg: uyari: files list file for package 'java-wrappers' missing; assuming package has no files currently installed (Veritabani okunuyor... 198988 files and directories currently installed.) Unpacking aptitude-common (from .../aptitude-common_0.6.8.1-2ubuntu1_all.deb) ... Selecting previously unselected package libboost-iostreams1.49.0. Unpacking libboost-iostreams1.49.0 (from .../libboost-iostreams1.49.0_1.49.0-3.1ubuntu1_amd64.deb) ... Selecting previously unselected package libcwidget3. Unpacking libcwidget3 (from .../libcwidget3_0.5.16-3.4ubuntu1_amd64.deb) ... Selecting previously unselected package aptitude. Unpacking aptitude (from .../aptitude_0.6.8.1-2ubuntu1_amd64.deb) ... wicd-daemon (1.7.2.4-2ubuntu1) kuruluyor... Use of uninitialized value in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line 46, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in -d at /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3. debconf: DbDriver "config": mkdir :Böyle bir dosya ya da dizin yok dpkg: error processing wicd-daemon (--configure): installed post-installation script alt islemi çikis durumunda hata döndürdü : 1 man-db (2.6.3-1) kuruluyor... Use of uninitialized value in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line 46, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in -d at /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3. debconf: DbDriver "config": mkdir :Böyle bir dosya ya da dizin yok dpkg: error processing man-db (--configure): installed post-installation script alt islemi çikis durumunda hata döndürdü : 1 dictionaries-common (1.12.10) kuruluyor... Use of uninitialized value in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in -e at /usr/share/perl5/Debconf/DbDriver/File.pm line 46, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in pattern match (m//) at /usr/share/perl5/Debconf/DbDriver/File.pm line 47, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in -d at /usr/share/perl5/Debconf/DbDriver/File.pm line 48, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value $directory in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 49, <DEBCONF_CONFIG> chunk 3. debconf: DbDriver "config": mkdir :Böyle bir dosya ya da dizin yok dpkg: error processing dictionaries-common (--configure): installed post-installation script alt islemi çikis durumunda hata döndürdü : 1 dpkg: dependency problems prevent configuration of aspell: aspell depends on dictionaries-common (>> 0.40); bununla beraber: Package dictionaries-common is not configured yet. dpkg: error processing aspell (--configure): bagimlilik sorunlari - yapilandirilmadan birakiliyor dpkg: dependency problems prevent configuration of aspell-en: aspell-en depends on aspell (>= 0.60.3-2); bununla beraber: Package aspell is not configured yet. aspell-en depends on dictionaries-common (>= 0.49.2); bununla beraber: Package dictionaries-common is not configured yet. dpkg: error processing aspell-en (--configure): bagimlilik sorunlari - yapilandirilmadan birakiliyor dpkg: dependency problems prevent configuration of hyphen-en-us: hyphen-en-us depends on dictionaries-common (>= 0.10) | openoffice.org-updatedicts; bununla beraber: Package dictionaries-common is not configured yet. openoffice.org-updatedicts paketi yüklenmedi. Package dictionaries-common which provides openoffice.org-updatedicts is not configured yet. dpkg: error processing hyphen-en-us (--configure): bagimlilik sorunlari - yapilandirilmadan birakiliyor dpkg: dependency problems prevent configuration of wicd-gtk: wicd-gtk depends on wicd-daemon (= 1.7.2.4-2ubuntu1); bununla beraber: Package wicd-daemon is not configured yet. dpkg: error processing wicd-gtk (--configure): bagimlilik sorunlari - yapilandirilmadan birakiliyor dpkg: dependency problems prevent configuration of wicd: wicd depends on wicd-daemon (= 1.7.2.4-2ubuntu1); bununla beraber: Package wicd-daemon is not configured yet. wicd depends on wicd-gtk (= 1.7.2.4-2ubuntu1) | wicd-curses (= 1.7.2.4-2ubuntu1) | wicd-cli (= 1.7.2.4-2ubuntu1) | wicd-client; bununla beraber: Package wicd-gtk is not configured yet. wicd-curses paketi yüklenmedi. wicd-cli paketi yüklenmedi. wicd-client paketi yüklenmedi. Package wicd-gtk which provides wicd-client is not configured yet. dpkg: error processing wicd (--configure): bagimlilik sorunlari - yapilandirilmadan birakiliyor aptitude-common (0.6.8.1-2ubuntu1) kuruluyor... libboost-iostreams1.49.0 (1.49.0-3.1ubuntu1) kuruluyor... libcwidget3 (0.5.16-3.4ubuntu1) kuruluyor... aptitude (0.6.8.1-2ubuntu1) kuruluyor... update-alternatives: using /usr/bin/aptitude-curses to provide /usr/bin/aptitude (aptitude) in Otomatik Mod Processing triggers for libc-bin ... ldconfig deferred processing now taking place Islem sirasinda hatalar bulundu: wicd-daemon man-db dictionaries-common aspell aspell-en hyphen-en-us wicd-gtk wicd E: Sub-process /usr/bin/dpkg returned an error code (1)

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  • Azure, don't give me multiple VMs, give me one elastic VM

    - by FransBouma
    Yesterday, Microsoft revealed new major features for Windows Azure (see ScottGu's post). It all looks shiny and great, but after reading most of the material describing the new features, I still find the overall idea behind all of it flawed: why should I care on how much VMs my web app runs? Isn't that a problem to solve for the Windows Azure engineers / software? And what if I need the file system, why can't I simply get a virtual filesystem ? To illustrate my point, let's use a real example: a product website with a customer system/database and next to it a support site with accompanying database. Both are written in .NET, using ASP.NET and use a SQL Server database each. The product website offers files to download by customers, very simple. You have a couple of options to host these websites: Buy a server, place it in a rack at an ISP and run the sites on that server Use 'shared hosting' with an ISP, which means your sites' appdomains are running on the same machine, as well as the files stored, and the databases are hosted in the same server as the other shared databases. Hire a VM, install your OS of choice at an ISP, and host the sites on that VM, basically the same as the first option, except you don't have a physical server At some cloud-vendor, either host the sites 'shared' or in a VM. See above. With all of those options, scalability is a problem, even the cloud-based ones, though not due to the same reasons: The physical server solution has the obvious problem that if you need more power, you need to buy a bigger server or more servers which requires you to add replication and other overhead Shared hosting solutions are almost always capped on memory usage / traffic and database size: if your sites get too big, you have to move out of the shared hosting environment and start over with one of the other solutions The VM solution, be it a VM at an ISP or 'in the cloud' at e.g. Windows Azure or Amazon, in theory allows scaling out by simply instantiating more VMs, however that too introduces the same overhead problems as with the physical servers: suddenly more than 1 instance runs your sites. If a cloud vendor offers its services in the form of VMs, you won't gain much over having a VM at some ISP: the main problems you have to work around are still there: when you spin up more than one VM, your application must be completely stateless at any moment, including the DB sub system, because what's in memory in instance 1 might not be in memory in instance 2. This might sounds trivial but it's not. A lot of the websites out there started rather small: they were perfectly runnable on a single machine with normal memory and CPU power. After all, you don't need a big machine to run a website with even thousands of users a day. Moving these sites to a multi-VM environment will cause a problem: all the in-memory state they use, all the multi-page transitions they use while keeping state across the transition, they can't do that anymore like they did that on a single machine: state is something of the past, you have to store every byte of state in either a DB or in a viewstate or in a cookie somewhere so with the next request, all state information is available through the request, as nothing is kept in-memory. Our example uses a bunch of files in a file system. Using multiple VMs will require that these files move to a cloud storage system which is mounted in each VM so we don't have to store the files on each VM. This might require different file paths, but this change should be minor. What's perhaps less minor is the maintenance procedure in place on the new type of cloud storage used: instead of ftp-ing into a VM, you might have to update the files using different ways / tools. All in all this makes moving an existing website which was written for an environment that's based around a VM (namely .NET with its CLR) overly cumbersome and problematic: it forces you to refactor your website system to be able to be used 'in the cloud', which is caused by the limited way how e.g. Windows Azure offers its cloud services: in blocks of VMs. Offer a scalable, flexible VM which extends with my needs Instead, cloud vendors should offer simply one VM to me. On that VM I run the websites, store my DB and my files. As it's a virtual machine, how this machine is actually ran on physical hardware (e.g. partitioned), I don't care, as that's the problem for the cloud vendor to solve. If I need more resources, e.g. I have more traffic to my server, way more visitors per day, the VM stretches, like I bought a bigger box. This frees me from the problem which comes with multiple VMs: I don't have any refactoring to do at all: I can simply build my website as if it runs on my local hardware server, upload it to the VM offered by the cloud vendor, install it on the VM and I'm done. "But that might require changes to windows!" Yes, but Microsoft is Windows. Windows Azure is their service, they can make whatever change to what they offer to make it look like it's windows. Yet, they're stuck, like Amazon, in thinking in VMs, which forces developers to 'think ahead' and gamble whether they would need to migrate to a cloud with multiple VMs in the future or not. Which comes down to: gamble whether they should invest time in code / architecture which they might never need. (YAGNI anyone?) So the VM we're talking about, is that a low-level VM which runs a guest OS, or is that VM a different kind of VM? The flexible VM: .NET's CLR ? My example websites are ASP.NET based, which means they run inside a .NET appdomain, on the .NET CLR, which is a VM. The only physical OS resource the sites need is the file system, however this too is accessed through .NET. In short: all the websites see is what .NET allows the websites to see, the world as the websites know it is what .NET shows them and lets them access. How the .NET appdomain is run physically, that's the concern of .NET, not mine. This begs the question why Windows Azure doesn't offer virtual appdomains? Or better: .NET environments which look like one machine but could be physically multiple machines. In such an environment, no change has to be made to the websites to migrate them from a local machine or own server to the cloud to get proper scaling: the .NET VM will simply scale with the need: more memory needed, more CPU power needed, it stretches. What it offers to the application running inside the appdomain is simply increasing, but not fragmented: all resources are available to the application: this means that the problem of how to scale is back to where it should be: with the cloud vendor. "Yeah, great, but what about the databases?" The .NET application communicates with the database server through a .NET ADO.NET provider. Where the database is located is not a problem of the appdomain: the ADO.NET provider has to solve that. I.o.w.: we can host the databases in an environment which offers itself as a single resource and is accessible through one connection string without replication overhead on the outside, and use that environment inside the .NET VM as if it was a single DB. But what about memory replication and other problems? This environment isn't simple, at least not for the cloud vendor. But it is simple for the customer who wants to run his sites in that cloud: no work needed. No refactoring needed of existing code. Upload it, run it. Perhaps I'm dreaming and what I described above isn't possible. Yet, I think if cloud vendors don't move into that direction, what they're offering isn't interesting: it doesn't solve a problem at all, it simply offers a way to instantiate more VMs with the guest OS of choice at the cost of me needing to refactor my website code so it can run in the straight jacket form factor dictated by the cloud vendor. Let's not kid ourselves here: most of us developers will never build a website which needs a truck load of VMs to run it: almost all websites created by developers can run on just a few VMs at most. Yet, the most expensive change is right at the start: moving from one to two VMs. As soon as you have refactored your website code to run across multiple VMs, adding another one is just as easy as clicking a mouse button. But that first step, that's the problem here and as it's right there at the beginning of scaling the website, it's particularly strange that cloud vendors refuse to solve that problem and leave it to the developers to solve that. Which makes migrating 'to the cloud' particularly expensive.

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  • projection / view matrix: the object is bigger than it should and depth does not affect vertices

    - by Francesco Noferi
    I'm currently trying to write a C 3D software rendering engine from scratch just for fun and to have an insight on what OpenGL does behind the scene and what 90's programmers had to do on DOS. I have written my own matrix library and tested it without noticing any issues, but when I tried projecting the vertices of a simple 2x2 cube at 0,0 as seen by a basic camera at 0,0,10, the cube seems to appear way bigger than the application's window. If I scale the vertices' coordinates down by 8 times I can see a proper cube centered on the screen. This cube doesn't seem to be in perspective: wheen seen from the front, the back vertices pe rfectly overlap with the front ones, so I'm quite sure it's not correct. this is how I create the view and projection matrices (vec4_initd initializes the vectors with w=0, vec4_initw initializes the vectors with w=1): void mat4_lookatlh(mat4 *m, const vec4 *pos, const vec4 *target, const vec4 *updirection) { vec4 fwd, right, up; // fwd = norm(pos - target) fwd = *target; vec4_sub(&fwd, pos); vec4_norm(&fwd); // right = norm(cross(updirection, fwd)) vec4_cross(updirection, &fwd, &right); vec4_norm(&right); // up = cross(right, forward) vec4_cross(&fwd, &right, &up); // orientation and translation matrices combined vec4_initd(&m->a, right.x, up.x, fwd.x); vec4_initd(&m->b, right.y, up.y, fwd.y); vec4_initd(&m->c, right.z, up.z, fwd.z); vec4_initw(&m->d, -vec4_dot(&right, pos), -vec4_dot(&up, pos), -vec4_dot(&fwd, pos)); } void mat4_perspectivefovrh(mat4 *m, float fovdegrees, float aspectratio, float near, float far) { float h = 1.f / tanf(ftoradians(fovdegrees / 2.f)); float w = h / aspectratio; vec4_initd(&m->a, w, 0.f, 0.f); vec4_initd(&m->b, 0.f, h, 0.f); vec4_initw(&m->c, 0.f, 0.f, -far / (near - far)); vec4_initd(&m->d, 0.f, 0.f, (near * far) / (near - far)); } this is how I project my vertices: void device_project(device *d, const vec4 *coord, const mat4 *transform, int *projx, int *projy) { vec4 result; mat4_mul(transform, coord, &result); *projx = result.x * d->w + d->w / 2; *projy = result.y * d->h + d->h / 2; } void device_rendervertices(device *d, const camera *camera, const mesh meshes[], int nmeshes, const rgba *color) { int i, j; mat4 view, projection, world, transform, projview; mat4 translation, rotx, roty, rotz, transrotz, transrotzy; int projx, projy; // vec4_unity = (0.f, 1.f, 0.f, 0.f) mat4_lookatlh(&view, &camera->pos, &camera->target, &vec4_unity); mat4_perspectivefovrh(&projection, 45.f, (float)d->w / (float)d->h, 0.1f, 1.f); for (i = 0; i < nmeshes; i++) { // world matrix = translation * rotz * roty * rotx mat4_translatev(&translation, meshes[i].pos); mat4_rotatex(&rotx, ftoradians(meshes[i].rotx)); mat4_rotatey(&roty, ftoradians(meshes[i].roty)); mat4_rotatez(&rotz, ftoradians(meshes[i].rotz)); mat4_mulm(&translation, &rotz, &transrotz); // transrotz = translation * rotz mat4_mulm(&transrotz, &roty, &transrotzy); // transrotzy = transrotz * roty = translation * rotz * roty mat4_mulm(&transrotzy, &rotx, &world); // world = transrotzy * rotx = translation * rotz * roty * rotx // transform matrix mat4_mulm(&projection, &view, &projview); // projview = projection * view mat4_mulm(&projview, &world, &transform); // transform = projview * world = projection * view * world for (j = 0; j < meshes[i].nvertices; j++) { device_project(d, &meshes[i].vertices[j], &transform, &projx, &projy); device_putpixel(d, projx, projy, color); } } } this is how the cube and camera are initialized: // test mesh cube = &meshlist[0]; mesh_init(cube, "Cube", 8); cube->rotx = 0.f; cube->roty = 0.f; cube->rotz = 0.f; vec4_initw(&cube->pos, 0.f, 0.f, 0.f); vec4_initw(&cube->vertices[0], -1.f, 1.f, 1.f); vec4_initw(&cube->vertices[1], 1.f, 1.f, 1.f); vec4_initw(&cube->vertices[2], -1.f, -1.f, 1.f); vec4_initw(&cube->vertices[3], -1.f, -1.f, -1.f); vec4_initw(&cube->vertices[4], -1.f, 1.f, -1.f); vec4_initw(&cube->vertices[5], 1.f, 1.f, -1.f); vec4_initw(&cube->vertices[6], 1.f, -1.f, 1.f); vec4_initw(&cube->vertices[7], 1.f, -1.f, -1.f); // main camera vec4_initw(&maincamera.pos, 0.f, 0.f, 10.f); maincamera.target = vec4_zerow; and, just to be sure, this is how I compute matrix multiplications: void mat4_mul(const mat4 *m, const vec4 *va, vec4 *vb) { vb->x = m->a.x * va->x + m->b.x * va->y + m->c.x * va->z + m->d.x * va->w; vb->y = m->a.y * va->x + m->b.y * va->y + m->c.y * va->z + m->d.y * va->w; vb->z = m->a.z * va->x + m->b.z * va->y + m->c.z * va->z + m->d.z * va->w; vb->w = m->a.w * va->x + m->b.w * va->y + m->c.w * va->z + m->d.w * va->w; } void mat4_mulm(const mat4 *ma, const mat4 *mb, mat4 *mc) { mat4_mul(ma, &mb->a, &mc->a); mat4_mul(ma, &mb->b, &mc->b); mat4_mul(ma, &mb->c, &mc->c); mat4_mul(ma, &mb->d, &mc->d); }

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  • What FOSS solutions are available to manage software requirements?

    - by boos
    In the company where I work, we are starting to plan to be compliant to the software development life cycle. We already have, wiki, vcs system, bug tracking system, and a continuous integration system. The next step we want to have is to start to manage, in a structured way, software requirements. We dont want to use a wiki or shared documentation because we have many input (developer, manager, commercial, security analyst and other) and we dont want to handle proliferation of .doc around the network share. We are trying to search and we hope we can find and use a FOSS software to manage all this things. We have about 30 people, and don't have a budget for commercial software. We need a free solution for requirements management. What we want is software that can manage: Required features: Software requirements divided in a structured configurable way Versioning of the requirements (history, diff, etc, like source code) Interdependency of requirements (child of, parent of, related to) Rule Based Access Control for data handling Multi user, multi project File upload (for graph, document related to or so on) Report and extraction features Optional Features: Web Based Test case Time based management (timeline, excepted data, result data) Person allocation and so on Business related stuff Hardware allocation handling I have already play with testlink and now i'm playing with RTH, the next one i try is redmine.

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  • MS Build Server 2010 - Buffer Overflow

    - by user329005
    Hey everybody, I try to build an solution in MS Build Server (MS Visual Studio 2010 ver 10.0.30319.1) about ServerTasks - Builds - Server Task Builder - Queue new Built and go, 47 seconds later I get an error output: CSC: Unexpected error creating debug information file 'c:\Builds\1\ServerTasks\Server-Tasks Builder\Sources\ThirdParty\Sources\samus-mongodb-csharp-2b8934f\MongoDB.Linq\obj\Debug\MongoDB.Linq.PDB' -- 'c:\Builds\1\ServerTasks\Server-Tasks Builder\Sources\ThirdParty\Sources\samus-mongodb-csharp-2b8934f\MongoDB.Linq\obj\Debug\MongoDB.Linq.pdb: Access denied I checked the permissions of directory and set it (for debug purposes only) to grant access for all users, but still having an issue. Running the Procmon and filter file access for directory: 'c:\Builds\1\ServerTasks\Server-Tasks Builder\Sources\ThirdParty\Sources\samus-mongodb-csharp-2b8934f\MongoDB.Linq\obj\Debug\' tells me: 16:41:00,5449813 TFSBuildServiceHost.exe 3528 QuerySecurityFile C:\Builds\1\ServerTasks\Server-Tasks Builder\Sources\ThirdParty\Sources\samus-mongodb-csharp-2b8934f\MongoDB.Linq\obj\Debug BUFFER OVERFLOW Information: DACL, 0x20000000 and 16:41:00,5462119 TFSBuildServiceHost.exe 3528 QueryOpen C:\Builds\1\ServerTasks\Server-Tasks Builder\Sources\ThirdParty\Sources\samus-mongodb-csharp-2b8934f\MongoDB.Linq\obj\Debug FAST IO DISALLOWED Any ideas?

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  • A Newbie question regarding Software Development

    - by Sharif
    Hi, I'm going to complete my B.pharm (Hons.) degree and, you know, I don't have much knowledge about programing. I was wondering to build a software on my own. Could you guys tell me what to learn first for that? Is it too hard for a student of other discipline to build a software? Let me know please. The software I want to make is like a dictionary (or more specifically like "Physician's Desk Reference"). It should find the generic name, company name, indication, price etc. of a drug when I enter the brand name and vice versa. To build a software like that what programing language could help me most and what (and how many) language should I learn first? In my country, there is no practice of Community pharmacy (most of the pharmacy stores are run by unskilled people), that's why this type of thing could help them sell drugs. Would you please tell me what I'm to do and how tough it is? I'm very keen to learn programming. Thanks in advance NB: I started this post in ASKREDDIT section but it seems that was not the right place for poll type question, so I post it again in this section

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  • How can a software agency deliver quality software/win projects?

    - by optician
    I currently work for a bespoke software agency. Does anyone have any experience of how to win well priced work? It seems there is so much competition from offshore/bedroom program teams, that cost is extremely competetive these days. I feel that it is very different compared to a software product company or an internal it department, in terms of budget. As someone else said before, we only ever really get to version 1.0 of a lot of our software, unless the client is big enough. In which case it doesn't make business sense to spend ages making the software the best we can. Its like we are doing the same quality of work of internal it. Also a Lot of our clients are not technically minded and so therefor will not pay for things they don't understand. As our company does not have the money to turn down work it often goes that we take on complicated work for far too little money. I have got a lot better at managing change and keeping tight specs etc. It is still hard.

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  • how to make a software and preserve database integrity and correctness and please help confused

    - by user287745
    i have made an application project in vs 08 c#, sql server from vs 08. the database has like 20 tables and many fields in each have made an interface for adding deleting editting and retrieving data according to predefined needs of the users. now i have to 1) make to project in to a software which i can deliver to professor. that is he can just double click the icon and the software simply starts. no vs 08 needed to start the debugging 2) the database will be on one powerful computer (dual core latest everything win xp) and the user will access it from another computer connected using LAN i am able to change the connection string to the shared database using vs 08/ debugger whenever the server changes but how am i supposed to do that when its a software? 3)there will by many clients am i supposed to give the same software to every one, so they all can connect to the database, how will the integrity and correctness of the database be maintained? i mean the db.mdf file will be in a folder which will be shared with read and write access. so its not necessary that only one user will write at a time. so is there any coding for this or? please help me out here i am stuck do not know what to do i have no practical experience, would appreciate all the help thank you

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  • I've got my Master's in Software Engineering... Now what? [closed]

    - by Brian Driscoll
    Recently I completed a Master of Science in Software Engineering from Drexel University (Philadelphia, PA, US), because I wanted to have some formal education in software (my undergrad is in Math Ed) and also because I wanted to be able to advance my career beyond just programming. Don't get me wrong; I love to code. I spend a lot of my spare time coding. However, for me writing code is just a means to an end: what I REALLY love is designing software. Not visual design, mind you, but the architecture of the system. So, ideally I'd like to try to get a job doing software architecture. The problem is that I have no real experience in it besides my graduate course work. So, what should I do to make my "bones" in software architecture? UPDATE Just so it's clear, I have over 5 years of work experience in software development and an MCTS cert in addition to my education, so I'm not looking for the usual "I'm fresh out of school, what should I do?" advice.

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  • Where can I get software-related legal advice?

    - by musicfreak
    Whenever someone asks a legal question here on SO, the response is usually something along the lines of "we are not lawyers." Okay, that's legitimate, but in that case, how can I talk to a lawyer about software-related legal matters? I could look through the phone book and find a local lawyer, but then I have no way of knowing whether the lawyer knows anything about software. (And I hear most local lawyers charge for your time, even if it's just a simple question.) Is there maybe some kind of online service for this sort of thing? For now, I'm just looking for some basic advice, so something free would be awesome, even if the "quality" is not as good. However, I'll still take any kind of paid services--I'll keep them in mind for the future. You can give me anything from a forum or QA site (like this one) to a professional service. Just remember that I'm looking specifically for software-related legal advice. I'm sure most lawyers know a thing or two about software, but I'd rather talk to someone who legitimately knows his stuff than someone who can only guess.

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  • RPC command to initiate a software install

    - by ericmayo
    I was recently working with a product from Symantech called Norton EndPoint protection. It consists of a server console application and a deployment application and I would like to incorporate their deployment method into a future version of one of my products. The deployment application allows you to select computer workstations running Win2K, WinXP, or Win7. The selection of workstations is provided from either AD (Active Directory) or NT Domain (WINs/DNS NetBIOS lookup). From the list, one can click and choose which workstations to deploy the end point software which is Symantech's virus & spyware protection suite. Then, after selecting which workstations should receive the package, the software copies the setup.exe program to each workstation (presumable over the administrative share \pcname\c$) and then commands the workstation to execute setup.exe resulting in the workstation installing the software. I really like how their product works but not sure what they are doing to accomplish all the steps. I've not done any deep investigations into this such as sniffing the network, etc... and wanted to check here to see if anyone is familiar with what I'm talking about and if you know how it's accomplished or have ideas how it could be accomplished. My thinking is that they are using the admin share to copy the software to the selected workstations and then issuing an RPC call to command the workstation to do the install. What's interesting is that the workstations do this without any of the logged in users knowing what's going on until the very end where a reboot is necessary. At which point, the user gets a pop-up asking to reboot now or later, etc... My hunch is that the setup.exe program is popping this message. To the point: I'm looking to find out the mechanism by which one Windows based machine can tell another to do some action or run some program. My programming language is C/C++ Any thoughts/suggestions appreciated.

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  • Should I write my own forum software?

    - by acidzombie24
    I have already built a site from scratch. It has banning, PM, comments, etc. The PMs and comments are done using markdown (like SO). There are pros and cons for writing my own or using another software. But some cons keeping me from using another forum software is Multiple Logins: One for the site, one for separate forums. Need to Customization code: I'll need to change the toolbar in the forum software so I can access pages on the regular site. Look consistency: It may look drastically different from my site even after applying lots of css changes. Banning and User consistency. Users may be ban on site or on forums but not the other. users may select a different or multiple usernames on the forum instead of being forced to use the same username on both site and forum. Should I write my own forum code or should I use something already written? What are some reasons for or against writing my own and using forum software?

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