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• Deployment from OVA format

  - by Manvendra Bele

  I am deploying a VM using a OVA format. The size of OVA format is 57 GB. Currently free space on my datastore is 388 GB. At the time of selecting Disk Format type if shows me in red that the disk size required is 1 TB therefore you cannot select THICK provisioning. Therefore, i selected THIN provisiong. It THIN provisioing i am showed that Estimated Disk Usage is 112 GB which is less than the free space available. But even after selecting THIN proviosing at the time of deployment it throws an error that it cannot create disk as the size of disk is larger than the maximum specified limit. My block size is of 1 MB. Pasting my exact error here: Failed to deploy OVF package:File [datastore1] IMS Tester 1/IMS Tester1_2.vmdk is larger than maximum size supported by datastore 'datastore1

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• Reiserfs partition data recovery

  - by user991554

  i am having windows xp as my os. but i have raiserfs partions created by suse linux on same HDD. i need to recover data from the linux partitions now. i created opensuse live usb and booted from it. but it is showing free space in disk manager instead of linux partitions. but i accessed from one windows application(e.g Ext2Read ) which is showing linux partitions but not able to recover data from them as they are demo applications. why opensuse live usb os showing free space instead of linux partitions. Any other metyhod to recover data from them?

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• "Cannot allocate memory" while no process seems to be using up memory

  - by omat

  I am not competent on server issues, any help is much appreciated. When try to start a python/django shell on a linux box, I am getting OSError: [Errno 12] Cannot allocate memory. free -m seems to confirm I am out of memory: total used free shared buffers cached Mem: 590 560 29 0 3 37 -/+ buffers/cache: 518 71 Swap: 0 0 0 But I cannot see what is eating up the memory with top or ps aux: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 20 0 24336 908 0 S 0.0 0.2 0:00.68 init 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 3 root 20 0 0 0 0 S 0.0 0.0 0:04.85 ksoftirqd/0 How can I identify the leak? Thanks. BTW, I am not sure if it is relevant, but the machine I am talking about is an AWS EC2 instance with Ubuntu 12 running.

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• slow virtualbox guest

  - by ecoologic

  I run a guest ubuntu 12.04 on a host ubuntu 12.04, with virtual box, and the guest is much, much slower than the host (ALT+TAB costs 4-5secs). I had a look around and I found contradicting opinions on virtualbox vs vmware (free), so I taught to keep the former. Both systems are updated, I installed the additions on the guest and I evenly split memory and video memory (64mb) between guest and host. I am running a toshiba m200 laptop with 4GB ram and shared video memory. The host bios does not include a configuration option for machine virtualization. I have 2 cpus and I can't give them both to the vm. Is there anything I overlooked that could solve my problem? Feel free to ask for more info, and thank you for any help. EDIT Idling with the monitor open the (single) guest cpu never gets below 55% and could raise to 80 - 90% just moving the mouse around, opening ff will cause the monitor to run 100% in the guest, while the host shows that both cpus are evenly working around 60%. My cpu is Intel® Core™2 Duo CPU T5450 @ 1.66GHz × 2. If this is not a configuration problem, does it mean my machine is too weak for virtualization?

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• NMap 6.01

  - by TATWORTH

  NMap 6.01 has been released at http://nmap.org/download.html"Nmap ("Network Mapper") is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), a utility for comparing scan results (Ndiff), and a packet generation and response analysis tool (Nping)."Home page is at http://nmap.org/  Nmap is free to download and use. You can download the source and compile it yourself if you so require.

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• sharing life experience

  - by gcc

  I am a student of computer engineering. I have never done any programming before, and as you can understand, I don't know how to study it or how to make my own programs. My English is weak [edited for clarity - ed], and so if you don't like the choices I list, please feel free to provide others. How should I study? How should I learn programming languages? Study completely from a book. Don't study from a book, just try writing code. A mix of the two; study from a book, then try writing code. Study half the book, then write the code by hand on paper. Listed to the teacher, then try to solve general problems (those not from any specific chapter). I have send that question to stackoverflow before when I am at first year. Now, I want to construct webpage to guide fresh students by giving advise of yours and mines.Maybe, you wonder Why I want to construct webpage , I just want help the other student. I am giving a link to that question < http://stackoverflow.com/questions/3389465/how-should-i-study-programming-languagess If you have other advice, feel free. EDIT: This web cite, I think , is constructed to share member's life experience and also I know these experiences is valuable . So I have no right to want your opinion, But I want your opinion / experience even if you think it is not so helpful to other

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• "The volume filesystem root has only..."

  - by jcslzr

  I am having this problem in ubuntu 12.04, but I fin strange that when I go to /tmp it wont allow me to delete some files, with message "Operation not permitted" or "this file could not be handled because you dont have permissions to read it". It is only a PC and I have the root password. I was trying to get at least 2000 MB of free space on the root file system to upgrade to 12.10 and see if that resolved the problem. Currently free space on root file system is 190 MB. This is my output: root@jcsalazar-Vostro-3550:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda6 7688360 7112824 184984 98% / udev 2009288 4 2009284 1% /dev tmpfs 806636 1024 805612 1% /run none 5120 0 5120 0% /run/lock none 2016584 5316 2011268 1% /run/shm /dev/sda5 472036 255920 191745 58% /boot /dev/sda7 30758848 7085480 22110900 25% /home root@jcsalazar-Vostro-3550:~# sudo parted -l Model: ATA TOSHIBA MK3261GS (scsi) Disk /dev/sda: 320GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 106MB 105MB primary fat16 2 106MB 15.8GB 15.7GB primary ntfs boot 3 15.8GB 278GB 262GB primary ntfs 4 278GB 320GB 41.9GB extended 5 278GB 279GB 499MB logical ext4 6 279GB 287GB 7999MB logical ext4 7 287GB 319GB 32.0GB logical ext4 8 319GB 320GB 1443MB logical linux-swap(v1) I apprecciate any new ideas that can help me. Thnx Carlos

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• Should I use OpenGL or DX11 for my game?

  - by Sundareswaran Senthilvel

  I'm planning to write a game from scratch (a BIG Game, for commercial purpose). I'm aware that there are certain compute libraries like OpenCL, AMD APP SDK, C++ AMP as well as DirectCompute - both from MS (NOT interested in CUDA) are available in the market. I'm planning to write the game from the scratch, which includes the following engines... Physics Engine AI Engine Main Game Engine (... and if anything is missed). I'm aware that, there are some free physics engine libraries in the market. Not sure about free AI engine libraries. I'm bit confused in choosing between the OpenCL, AMD APP SDK, and C++ AMP libraries (as already mentioned i'm NOT interested in CUDA). I want my game to be published in Windows/Android/Mac OSX. It means it should be a cross-platform game. I will be having "one source code" that i'll compile for various platforms like Windows/Android/Mac OSX, and any others if i missed. Note: Since I'm NOT a Java guy, kindly do NOT suggest me the Java Language. For Graphics language should i use OpenGL or DirectX 11? I have heard that OpenGL runs on a single core, and not sure of DirectX 11. Between OpenGL and DirectX which one should i follow? or else, are there any other graphics language that i need to start with? I want to make use of the parallelism in GPU as well as CPU.

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• digital magazine publishing engine licensing question

  - by nosarious

  I have a publishing engine I have been developing for thirty months but find myself being unable to work on it during my masters degree. I would like to make it open source in the interim to get others to use it and improve how it works. I would like to consider a licensing system that allows for multiple instances of the software for singular users (ie, a newspaper/magazine or zine hosting the code on their own). I would like to limit it from becoming the basis of a larger magazine hosting service right now because it is intended to be an integral part of a much larger publishing ecosystem which allows for the creation, dissemination and collection of publications as a free or very inexpensive service. Right now there is no license associated with it, which is why I am not posting a link here. (This system was developed to counter implied censorship for digital magazines and remove costly and confusing 'barriers to entry' for creators wishing to make interactive digital content. It is intended to be useful for free, but I would like to prevent people taking the code and using it to take advantage of others. It needs a bit of work to separate the content from the page itself to allow the access of multiple which I cannot develop right now) Any help or suggestion on how to handle licensing this code for contributions and use would be appreciated, and if anyone would like to see examples or the github I would be happy to send it.

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• Did You Know Facebook Has Built-In Shortcut Keys?

  - by The Geek

  I was spending some time browsing around Facebook today (translation: wasting time), when I noticed that they have some shortcut keys for navigating around the site using the keyboard, so I put together a list for everybody. Note: for each of these shortcut keys, if you’re using Firefox, you’ll need to use Shift+Alt instead of just Alt, and for Internet Explorer you’ll need to hit the Enter key after the shortcut to trigger it. If you’re using a Mac, you’ll need to use Ctrl+Opt instead of Alt Latest Features How-To Geek ETC How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC 2011 International Space Station Calendar Available for Download (Free) Ultimate Elimination – Lego Black Ops [Video] BotSync Enables Secure FTP File Synchronization on Android Devices Enjoy Beautiful City Views with the Cityscape Theme for Windows 7 Luigi Installs Any OS on Google’s Cr-48 Notebook DIY iPad Stylus Offers Pen-Based Interaction on the Cheap

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• Resuming from hibernation shows a fuzzy "static" screen

  - by Ross

  When I resume from hibernation in Ubuntu 10.10 the screen shows static, very similar to what you see on an analogue TV that hasn't been tuned properly. This also occurs on boot from shut down, but only for a moment after the Plymouth boot screen. The static lasts for at least 5 minutes. An odd thing that happens is that the mouse pointer, as a lighter square of static, becomes visible and you can move it around. Attempting to change into a terminal (i.e. Ctrl+Alt+F1) doesn't seem to work (and I'm not sure if that can be done from the login screen). Resuming from suspend has different issues - vertical lines appearing for a second before appearing to be in terminal mode (blinking cursor) and then going to the lock screen. I'm running Ubuntu 10.10 on a Dell Studio 15 with ATI graphics, however I'm not using the proprietary drivers as I had issues with dual-screen support, so it's the generic X.org drivers being used.

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• Ubuntu Linux: Process swap memory and memory usage

  - by David Halter

  My Ubuntu eats more memory than the task manager is showing: sudo ps -e --format rss | awk 'BEGIN{c=0} {c+=$1} END{print c/1024}' 1043.84 free -m total used free shared buffers cached Mem: 3860 1878 1982 0 20 679 -/+ buffers/cache: 1178 2681 Swap: 2729 1035 1693 That's strange. Can someone explain this difference? But what is more important: I'd like to know how much memory a process is really using. I don't want to know the virtual memory size, but rather the resident memory plus swap of a process. I have also tried to output the format param "sz" of 'ps', but the sum of this is to high (5450 MB) (param 'size' gives 8323.45 MB). Are there any other options? I really want to use this, to determine which programs/processes are eating to much memory (and swap), to kill them, because hibernate might not be working if the swap partition is to little.

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• Cannot resize an ntfs (Windows Server 2k3r2) boot partition booting from gparted

  - by jshin47

  I am trying to use gparted to make my ntfs system/boot partition larger. I expanded the disk in ESX, providing an extra 60 GB or so of free space. I confirmed that this free space is available in gparted: However, when I try to go to "Move/Resize" the boot partition, there is no unallocated space for me to allocate. It will let me resize the "extended" (non-boot) partition, which makes me think the issue is that the partitions are not contiguous. If it's not obvious, I am no expert in partitioning/storage so any help is appreciated.

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• Jet Brains release WebStorm 5.0

  - by TATWORTH

  At http://www.jetbrains.com/webstorm/whatsnew/index.html?WS50ROW, Jet Brains have announced the release of WebStorm 5.0, an IDE that brings the ease of code writing in VB.NET and C# that you get with ReSharper, to JavaScript, CSS and LESS. (There are some more details in http://blog.jetbrains.com/webide/2012/08/liveedit-plugin-features-in-detail/)Code completion in JavaScript, CSS and LESS is a very welcome feature. I look forward to trying out Web Storm. The download at http://www.jetbrains.com/webstorm/download/index.html comes with a free 30-day trial).Price information is at http://www.jetbrains.com/webstorm/buy/index.jsp - you should note that if you are an open-source developer, you can apply for a free license. The price of a personal license at £23 + VAT is a no-brainer. The price of a Commercial license would have been paid for in a few days of the increased productivity that this tool brings.Web Storm currently requires Google Chrome to run. Like ReSharper it appears to be a very able tool. It includes tools such as:XSLT debuggingJSLint for checking for JavaScript errorsJavaScript debuggingJavaScript unit testing (including code coverage)JavaScript folding regionsCoffeeScript supportWell I suggest that you try WebStorm 5.0

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• Microsoft Lowers Cloud Barrier To Entry

  - by Herve Roggero

  Once in a while, the technology stack changes enough to create a disturbance in the IT industry. Microsoft did just that today and has officially closed the gap with its #1 competitor: Amazon. What is remarkable is that Microsoft is no longer an alternative to Amazon, it is becoming a clear leader in that space. Some of the new features include official support for durable Virtual Machines with high availability (cross-geographic replication), free WebSites to try Azure, MySQL database at no charge, a new distributed low-latency cache feature, Linux support, support with existing VPN hardware for seamless on-premise integration, a new partner ecosystem and much, much more. Amazon had an edge against Windows Azure in the IaaS (Infrastructure as a Service) space, until now. With the latest release from Microsoft Azure, the gap has been filled. In fact, it seems Amazon may now have a gap to fill… This is great news to everyone; it seems that cloud offerings are becoming more standardized with the more mature cloud providers, and the management stack and quality of service of each cloud provider is increasingly becoming the differentiator. With today’s announcements, it is becoming clear that cloud providers are pushing hard to increase their service footprint and lowering typical barriers to entry such as support for open-source operating systems, free trial offers, higher availability, faster deployment times and simpler enterprise integration.

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• Cryptswap not mounted?

  - by woody

  I believe i have my swap set up but am not sure because on start up it says that it is something along the lines of "could not mount /dev/mapper/cryptswap1 M for manual S for skip". But it appears to be mounted. When i run free -m the output is: total used free shared buffers cached Mem: 3887 769 3117 0 54 348 -/+ buffers/cache: 366 3520 Swap: 4026 0 4026 and sudo bklid is: /dev/sda1: UUID="9fb3ccd6-3732-4989-bfa4-e943a09f1153" TYPE="ext4" /dev/mapper/cryptswap1: UUID="bd9fe154-8621-48b3-95d2-ae5c91f373fd" TYPE="swap" and cat /etc/crypttab is: cryptswap1 /dev/sda5 /dev/urandom swap,cipher=aes-cbc-essiv:sha256 my /etc/fstab is: # /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda1 during installation UUID=9fb3ccd6-3732-4989-bfa4-e943a09f1153 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda5 during installation #UUID=bb0e378e-8742-435a-beda-ae7788a7c1b0 none swap sw 0 0 /dev/mapper/cryptswap1 none swap sw 0 0 The file /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla already exists and its contents are: [Re-enable hibernate by default] Identity=unix-user:* Action=org.freedesktop.upower.hibernate ResultActive=yes Is my swap not setup correctly or is it not mounting?

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• How to get numpad out of "mouse emulation" mode?

  - by Jonik

  My numeric keypad has somehow got into a "mouse emulation" mode where the number keys just move the mouse pointer around (2 = down; 8 = up, 6 = right, etc). Anyone know how to make it work normally again? None of the other numpad keys work either (I first noticed the whole thing when Ctrl + ÷ (numpad division sign) no longer produced "line comment" in IntelliJ IDEA). Toggling num lock doesn't affect this (though the indicator LED works as usual). I'm using GNOME on Lucid Lynx (10.4).

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• Support our movement?

  - by Mirchi Sid

  | Imagine Freedom 2013 | mnearth Student Programs This is to inform you about the world’s first online student competition called imagine freedom which is conducted by mnearth corporation India .The imagine freedom will be one of the most popular student IT competition in the world .The program will be fully functioned with free and open source software and operating system like Ubuntu Linux and Linux . The Competition have a lot of other categories like web designing , software development and much more .The program coordinates will contact your schools for the selection process and giving the first steps for registration . If you are an expert in Open source free software? Then it is the time for you ! Otherwise do you know anyone who have the skills ? Then inform them about the program . The competitions will be done as a part of Mnearth Student Programs . The program schedule and the local competition information will be send after getting the applications . The competitions are categorized into three . |Categories Of Participants Animation Films Multimedia Presentation 3D Animation Web Designing Software Development Innovations Cloud Apps Games etc. . . . . . |Levels Of Participants High School Level Higher Secondary Level Collage Level University Level |High School level This levels is for the students who is students . It’s age limit is 12 - 24 years . The competitions will be started on this year for selecting the good students who have the talent . For more information Send to : [email protected] Call us on :04936312206 (india) Join with the Community on facebook : follow us on twitter : www.twitter.com/imaginatingkids www.facebook.com/imaginefreedomonce

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• Real Widget Adds WP7-like Tiles to Android

  - by Jason Fitzpatrick

  Android: If you want the look of Windows Phone 7 tiles on your Android phone without completely replacing your launcher and interface, Real Widget offers the shortcut tiles without the total overhaul. You can customize the widgets to launch apps, system functions, and more to enjoy the WP7 tiled look without sacrificing the functionality of your current Android launcher. Hit up the link below to check out more screenshots and free copy to take for a spin. Real Widget is Android 4.0+ only. Real Widget [via Addictive Tips] HTG Explains: How Antivirus Software Works HTG Explains: Why Deleted Files Can Be Recovered and How You Can Prevent It HTG Explains: What Are the Sys Rq, Scroll Lock, and Pause/Break Keys on My Keyboard?

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• How to remove bad disk from LVM2 with the less data loss on other PVs?

  - by Walkman

  I had a LVM2 volume with two disks. The larger disk became corrupt, so I cant pvmove. What is the best way to remove it from the group to save the most data from the other disk? Here is my pvdisplay output: Couldn't find device with uuid WWeM0m-MLX2-o0da-tf7q-fJJu-eiGl-e7UmM3. --- Physical volume --- PV Name unknown device VG Name media PV Size 1,82 TiB / not usable 1,05 MiB Allocatable yes (but full) PE Size 4,00 MiB Total PE 476932 Free PE 0 Allocated PE 476932 PV UUID WWeM0m-MLX2-o0da-tf7q-fJJu-eiGl-e7UmM3 --- Physical volume --- PV Name /dev/sdb1 VG Name media PV Size 931,51 GiB / not usable 3,19 MiB Allocatable yes (but full) PE Size 4,00 MiB Total PE 238466 Free PE 0 Allocated PE 238466 PV UUID oUhOcR-uYjc-rNTv-LNBm-Z9VY-TJJ5-SYezce So I want to remove the unknown device (not present in the system). Is it possible to do this without a new disk ? The filesystem is ext4.

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• Cry Engine 3 vs UDK

  - by Daniele Riccardelli

  I'm new here and I hope that other people may find this question interesting. Me and a bunch of guys from my University are thinking about getting started in game development, but, even though the game design is kind of ready, we are stucked at the point "which Engine should we choose". At first, we were thinking about Unity3D Free, in particular because we are pretty familiar with C# and, even better, it's completely free, but on the other hand there are some cons like no dynamic shadowing that make the realization of our game kinda hard. So, we are thinking about moving either to UDK or Cry Engine, since they are not as expensive as Unity3D Pro (at least before the game deployment) . The thing we are worried the most, though, is that we are kind of scared about the support for team work(i mean, that we might find it hard to coordinate our efforts without software support), since in Unity3D the team features are part of purchasable content, and we are not interested in paying that much for a project we are not even sure we can complete. So, finally, I hope one of you knows the mentioned engines enough to give us a tip telling which one offers better team features and is advisable for guys that have barely worked before on videogames but have good object oriented programming skills. Probably might be helpful for your suggestion, if i say that our game is an exploration game. Thanks to anybody who's going to answer.

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• Tuning MySQL to consume less memory

  - by Alex

  I have a VM which has 2GB Ram, (full specs) And I am setting up a site which has one table in particular with over a million records. There's little or no usage of this particular database (perhaps once or twice a day) but simply running mysql grinds the whole server to a halt. I've looked through the top results but nothing is really denting the CPU however the memory seems to be the issue. The site isnt even live of taking requests yet. the memory situation looks like this: # free -m total used free shared buffers cached Mem: 2006 1880 126 0 3 53 -/+ buffers/cache: 1823 183 Swap: 2047 345 1702 Are there any good pointers to tune mysql to stop hogging the system memory? Thanks very much EDIT: (requested by 8bit): http://tny.cz/b41a0b12

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• Create Bootable CD from ISO

  - by ScG

  I need to create a Bootable CD from a ISO. is there a free software available?

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• FRM-40654 Error on Purchase Order Lines?? Stop 'em Now by Applying Patch 14204845

  - by user793553

  Procurement Development has just released a new patch for Release 12 that will stop those annoying FRM-40654 errors on Purchase Order lines, before they occur. When a Purchase Order (PO) is created through autocreate from a requisition line that accidently has blank spaces, this triggers a row lock and when the user tries to update the created PO the FRM-40654 error message ‘Record has been updated. Requery block to see the change’ occurs. Development has added code to remove these leading or trailing spaces, thus avoiding the issue in the first place.  This patch has been added to the recommend patch list in Doc ID 1358356.1 'Recommended Patches for Purchase Order and Requisition Processing'.  Be proactive and apply Patch 14204845:R12.PO.B now!

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• Using C++ but not using the language's specific features, should switch to C?

  - by Petruza

  I'm developing a NES emulator as a hobby, in my free time. I use C++ because is the language I use mostly, know mostly and like mostly. But now that I made some advance into the project I realize I'm not using almost any specific features of C++, and could have done it in plain C and getting the same result. I don't use templates, operator overloading, polymorphism, inheritance. So what would you say? should I stay in C++ or rewrite it in C? I won't do this to gain in performance, it could come as a side effect, but the idea is why should I use C++ if I don't need it? The only features of C++ I'm using is classes to encapsulate data and methods, but that can be done as well with structs and functions, I'm using new and delete, but could as well use malloc and free, and I'm using inheritance just for callbacks, which could be achieved with pointers to functions. Remember, it's a hobby project, I have no deadlines, so the overhead time and work that would require a re-write are not a problem, might be fun as well. So, the question is C or C++?

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