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  • Perl script segfaulting after 64-bit upgrade

    - by Brent
    I recently upgraded a 32-bit Debian server to 64-bit by re-installing, and copying my data into place. After this I have a perl script that repeats the following, and is segfaulting on the tell line: seek(FIN,$ps,0); tell(FIN, $ps); $line=<FIN>; I don't speak perl, so I'm not sure exactly what is going on here. I can get the script to run (apparently successfully) by commenting every occurrence of tell, but this is obviously not the best solution. I suspect that tell is calling a 32-bit binary or something, and that is the cause of the segfault - but I don't know. Can someone explain what tell does, and if it is indeed a separate binary, what package it belongs to (or how it is installed ie. cpan)? Or perhaps I am on the wrong track?

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  • Is rotating the lead developer a good or bad idea?

    - by Renesis
    I work on a team that has been flat organizationally since it's creation several months ago. My manager is non-technical and this means that our whole team is responsible for decision-making. My manager is beginning to realize that there are several benefits to having a lead developer, both for his sake (a single point of contact and single responsible party for tasks) and ours (dispute resolution, organized technical guidance, etc.). Because the team has been flat, one concern is that picking one lead developer may discourage the others. A non-developer suggested to my manager that rotating the lead developer is a possible way to avoid this issue. One developer would be lead one month, another the next, and so on. Is this a good idea? Why or why not? Keep in mind that this means all developers — All developers are good, but not necessarily equally suited to leadership. And if it is not, suppose I am likely the best candidate for lead developer — how do I recommend that we avoid this approach without looking like it's merely for selfish reasons? (In other words, the team is small enough that anyone recommending a single leader is likely to appear to be recommending themselves — especially those who have been part of the team longer.)

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  • Is a cluster the most cost effective redundancy method for windows server 2003?

    - by Ryan
    We had a server with bad ram which caused a long outage while they figured it out and our client facing apps had to go down for a while. We are coming up with a solution for instant fail-over but are not sure what the most cost effective method would be. Is a windows server cluster the best method for this? Also note we are using Parallels Virtuozzo if that makes any difference here. We found Parallels has a documented method for setting this up but it said it required a Domain Controller as well as a Fiber connection to shared storage, is all that really needed? Thanks.

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  • Is there any reason to install software as root as opposed to sudo installing software as a sudoer?

    - by Tchalvak
    I'm setting up a new server running Ubuntu Server Edition, and I'm not certain what the difference would be between installing most of the basic software as root, vs installing the basic software as an admin user using sudo apt-get install . For one thing, I'm not sure whether after installing the software as root, I'll need sudo access when running the software as a user (e.g. if I install git as root). On the other hand, if I install software as a user, I could conceive of it not being available to other users that I create in the future. What's the best practice here?

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  • What is the way to submit a patch to fix all the damage that LP: #600941 causes?

    - by nutznboltz
    What is the best way to submit a patch to fix all the damage that LP: #600941 causes? I ask because LP: #600941 was put into every version of Ubuntu still supported at this time. Should I pick a particular version and run ubuntu-bug on it? Should that version be the LTS or Oneiric or Precise (how can I get Precise if I need it?) The story is that after it was pushed out all of our systems started experiencing Nagios nrpe restart failures. Commands like /etc/init.d/nagios-nrpe-server restart would cause nrpe to stop but not restart. I tracked this down to the way that the /etc/init.d/nagios-nrpe-server script is calling start-stop-daemon. The issue is that the "stop" stanza in the /etc/init.d/nagios-nrpe-server script first calls start-stop-daemon which sends SIGTERM to nrpe and then waits only for one second. If nrpe has not exited by that time the pid file will still exist and the /etc/init.d/nagios-nrpe-server script will remove it. Worse if /etc/init.d/nagios-nrpe-server restart is used not only will the pid file be removed, the attempt to restart nrpe will fail provided that the nrpe daemon is still tardy in shutting down. The attempt to start under those circumstances will fail because nrpe will still be bound to a socket and the second attempt at binding will cause the nrpe startup to abort. They should have wondered why there was a comment about "sometimes the pid file does not get removed". They should have tested on systems that have a heavy load and therefore slow nrpe response times. The fix is to add --retry 10 or such to the invocation of start-stop-daemon ... --stop ... Thanks

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  • Oracle Solaris 11 Summit Day at the LISA Conference 2011-Register Today!

    - by Terri Wischmann
    We have successfully launched and shipped Oracle Solaris 11!  Come to the LISA 2011 Conference in Boston, MA to learn about all the latest and greatest Oracle Solaris 11 technologies. On Tuesday, 12/6/11 we are hosting our 2nd annual Oracle Solaris 11 Summit Day! It's a Free full day of sessions covering the latest OS technologies, and a chance for you to meet key members of the Oracle Solaris engineering team as they conduct a deep-dive exploration of core Solaris features. See agenda below -Register Today!!  Time  Topic  Presenter  9:00 -9:30 am  Oracle Solaris 11 Strategy  Markus Flierl  9:30 - 11:00 am  Next Generation OS Lifecycle Management with Oracle Solaris 11  Dave Miner/Bart Smaalders  11:00 am  - 12:00 pm  Data Management with ZFS  Mark Maybee  12:00 - 1:00 pm  LUNCH  All  1:00 - 2:30 pm Oracle Solaris Virtualization and Oracle Solaris Networking  Mike Gerdts/Sebastian Roy 2:30 - 3:15 pm Security in your Oracle Solaris Cloud Environment  Glenn Faden  3:15 - 3:30 pm  BREAK  All  3:30 - 4:15 pm Oracle Solaris - The Best Platform to run your Oracle Applications David Brean  4:15 - 5:00 pm Oracle Solaris Cluster - HA in the Cloud Gia-Khahn Nguyen  5:00 - 6:30 pm  Reception  All

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  • Dual Core or Quad Core CPU for NetBeans/Eclipse development?

    - by cdb
    I am going to buy a new desktop CPU. I am a programmer who mainly uses NetBeans IDE for Java web application development, with GlassFish application server. I went through the discussion regarding Dual Core or Quad Core. My doubt is that software like IDEs (NetBeans, Eclipse, etc., with a server running) may not be written with multiple cores in mind? I am not a game addict... So what is best for me, and which company should I choose, AMD/Intel?

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  • SQL SERVER – Load Generator – Free Tool From CodePlex

    - by pinaldave
    One of the most common questions I receive is if there any tool available to generate load on SQL Server. Absolutely there is a fabulous free tool available to generate load on SQL Server on Codeplex. This tool was released in 2008 but it is still extremely relevant to generate the load on SQL Server as well works fabulously. CodePlex is a project initiated by Microsoft for hosting open source softwares. The best part of this SQL Server Load Generator is that users can run multiple simultaneous queries again SQL Server using different login account and different application name. The interface of the tool is extremely easy to use and very intuitive as well. One of the things which I felt needed improvement was a default configuration. As every single time when I was adding a query the default settings were showing up and I had to manually change that. However, when I went to Menu >> Tools >>Options I was really happy as it has options to change every single default which is available. Here one can give default username, password, database name as well various settings related to configuration. Additionally application logging is also possible through the options. A couple of other important points I noticed was the button to reset counters as well status bar containing useful information of Total Threads, Completed Queries and Failed Queries. I use this frequently for my load testing. What tool do you use for SQL Server Load Generator? Download SQL Load Generator Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL Utility, T SQL, Technology

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  • Apache2 BufferedLogs On - anybody using it ?

    - by Qiqi
    Greetings, I am wondering, whether anybody is using BufferedLogs On with Apache2 and found any issues ? Feature is marked as experimental, but for many years now, so I guess it's rather pretty stable. I am running some servers with constrained disk IO capacity at the moment, so I turned it on hoping that even a small benefit could help in the long run ;-) I do have several to several hundreds requests per seconds so by my thoughts there is really no need to write to log after each request, cause honestly I don't think that my filesystem is the best handler for many unnecessary writes. (OCFS2 shared among several DomUs in the Xen)

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  • XNA C# Platformer - physics engine or tile based?

    - by Hugh
    I would like to get some opinions on whether i should develop my game using a physics engine (farseer physics seems to be the best option) or follow the traditional tile-based method. Quick background: - its a college project, my first game, but have 4 years academic programming experience - Just want a basic platformer with a few levels, nothing fancy - want a shooting mechanic, run and gun, just like contra or metal slug for example - possibly some simple puzzles I have made a basic prototype with farseer, the level is hardcoded with collisions and not really tiled, more like big full-screen sized tiles, with collision bodies drawn manually along the ground and walls etc. My main problem is i want a simple retro feel to the jumping and physics but because its a physics simulation engine its going to be realistic, whereas typical in air controllable physics for platformers arent realistic. I have to make a box with wheel body fixture under it to have this effect and its glitchy and doesnt feel right. I chose to use a physics engine because i tried the tile method initially and found it very hard to understand, the engine took care of alot things to save me time, mainly being able to do slopes easily was nice and the freedom to draw collision bounds wherever i liked, rather then restricted to a grid, which gave me more freedom for art design also. In conclusion i don't know which method to pick, i want to use a method which will be the most straight forward way to implement and wont give me a headache later on, preferably a method which has an abundance of tutorials and resources so i dont get "stuck" doing something which has been done a million times before! Let me know i haven't provided enough information for you to help me! Thanks in advance, Hugh.

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  • Dynamic/Adaptive RLE

    - by Lucius
    So, I'm developing a 2D, tile based game and a map maker thingy - all in Java. The problem is that recently I've been having some memory issues when about 4 maps are loaded. Each one of these maps are composed of 128x128 tiles and have 4 layers (for details and stuff). I already spent a good amount of time searching for solutions and the best thing I found was run-length enconding (RLE). It seems easy enough to use with static data, but is there a way to use it with data that is constantly changing, without a big drop in performance? In my maps, supposing I'm compressing the columns, I would have 128 rows, each with some amount of data (hopefully less than it would be without RLE). Whenever I change a tile, that whole row would have to be checked and I'm affraid that would slow down too much the production (and I'm in a somewhat tight schedule). Well, worst case scenario I work on each map individually, and save them using RLE, but it would be really nice if I could avoind that. EDIT: What I'm currently using to store the data for the tiles is a 2D array of HashMaps that use the layer as key and store the id of the tile in that position - like this: private HashMap< Integer, Integer [][]

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  • How to increase virtual hard drive space

    - by Chris
    I have a Microsoft Virutal PC hard drive (.vhd format) that's maxed out it's 16 gig hard drive space. What would be the best way to increase this diskspace? Booting into the machine (windows xp professional) and using the disk management snap in, I can see that the virtual drive has approximately 40 more unused gigs of space. Trying to use diskpart, I find out that Windows XP can't extend the boot partition. So I'm at an empass, any suggestions on how to increase the partion or to increase the actual virtual hard drive would be great. Note: The virtual hard drive is running on Windows 7 using XP mode.

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  • Rugged Netbook and software options for Running R statistical software?

    - by Thomas
    I am interested in purchasing a netbook to do field research in another country. My hardware specifications for the nebtook: -Be rugged enough to survive a bit of wear and tear -Fairly fast processing (the ability to upgrade from 1GB of RAM to 2GB) -A battery life of longer than 6 hours -At least a 10 inch screen -A decent camera for Skyping My software needs: -Be able run a Spreadsheet program to do basic data input (like Excel or Open Office) -Use the Open Source Statistical Program R to do basic data analysis (Regression, data analysis etc.) -Word Processing (Word or Open Office) Do you have any suggestions on which models or brands my fit my needs? Some of the models I was considering: Samsung NB-30 Toshiba NB 305 Asus Eee PC 1005HA Lenovo S10-2 Also any recommendations on the best software to load on the aforementioned Netbooks. I saw this resource from [livehacker][6] Any comments. Thanks for your help! -Thomas

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  • Which smartphone OS would you choose for your users ?

    - by Florent
    While we currently only use windows mobile smartphone, my boss seems less and less reluctant to try and choose a new kind of OS for our users corporate phones. For some reasons, we can't use a Blackberry Enterprise Server, so i guess our only choice is between Iphone OS and Android (or Blackberry without BES ? I don't really know if this works fine) We need activesync capable smartphones of course, and activesync security policies must be available (pin when using your phone for example). Centralized Phone management would be nice too :D Any ideas on what should be the best smartphone to choose for our users ?

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  • Introducing the Industry's First Analytics Machine, Oracle Exalytics

    - by Manan Goel
    Analytics is all about gaining insights from the data for better decision making. The business press is abuzz with examples of leading organizations across the world using data-driven insights for strategic, financial and operational excellence. A recent study on “data-driven decision making” conducted by researchers at MIT and Wharton provides empirical evidence that “firms that adopt data-driven decision making have output and productivity that is 5-6% higher than the competition”. The potential payoff for firms can range from higher shareholder value to a market leadership position. However, the vision of delivering fast, interactive, insightful analytics has remained elusive for most organizations. Most enterprise IT organizations continue to struggle to deliver actionable analytics due to time-sensitive, sprawling requirements and ever tightening budgets. The issue is further exasperated by the fact that most enterprise analytics solutions require dealing with a number of hardware, software, storage and networking vendors and precious resources are wasted integrating the hardware and software components to deliver a complete analytical solution. Oracle Exalytics In-Memory Machine is the world’s first engineered system specifically designed to deliver high performance analysis, modeling and planning. Built using industry-standard hardware, market-leading business intelligence software and in-memory database technology, Oracle Exalytics is an optimized system that delivers answers to all your business questions with unmatched speed, intelligence, simplicity and manageability. Oracle Exalytics’s unmatched speed, visualizations and scalability delivers extreme performance for existing analytical and enterprise performance management applications and enables a new class of intelligent applications like Yield Management, Revenue Management, Demand Forecasting, Inventory Management, Pricing Optimization, Profitability Management, Rolling Forecast and Virtual Close etc. Requiring no application redesign, Oracle Exalytics can be deployed in existing IT environments by itself or in conjunction with Oracle Exadata and/or Oracle Exalogic to enable extreme performance and best in class user experience. Based on proven hardware, software and in-memory technology, Oracle Exalytics lowers the total cost of ownership, reduces operational risk and provides unprecedented analytical capability for workgroup, departmental and enterprise wide deployments. Click here to learn more about Oracle Exalytics.  

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  • What is the correct UI interface to learn for creating Windows phone 8 apps? [closed]

    - by Robert Oschler
    I am a veteran Delphi 6 programmer transitioning to C# development. My first project is a open source library that will have a minimal user interface since it is meant to be used as a Component primarily on desktop PCs running Visual Studio. My next project is going to be a Windows 8 phone app and I intend for that platform to be my primary focus for future C# development, not the desktop. My concern is that I waste as little time as possible learning a presentation framework that will benefit or distract me from writing Windows 8 phone apps. The plethora of framework names I have already encountered include, WinForms, WPF (Windows Presentation Framework), Silverlight, Silverlight Mobile, Metro and there may be others. Given my goal outlined in the first paragraph above, I have a few questions: 1) Which of the frameworks should I use for the small amount of UI work I will do with the desktop Component project that will help me the most, or hurt me the least, when I move to Windows 8 phone app development? 2) Which is the correct framework to study for developing Windows 8 phone apps? 3) Any awesome tutorials, resources or books you have run into targeted towards veteran programmers from other platforms? I read about the Portable Library Tools on this Stack Overflow thread: http://stackoverflow.com/questions/5522355/windows-phone-7-wpf-sharing-a-codebase But the reply by Simon Guindon seemed to indicate to me that it's not the best solution for writing a competitive Windows 8 phone app.

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  • crunchbang: it takes up *how* much memory?!?!

    - by Theo Moore
    I've been trying many distros of Linux lately, trying to find something I like for my netbook. I started out with Ubuntu, and I can tell you I am a big fan. Ubuntu is now fast to install, much simpler to administer, and pretty light resource-wise. My original install was the standard 32 bit version of 9.04. I tried the netbook remix version of this release, but it was very, very slow. Even the full-blown version used only about 200mb. Much better than the almost 800 that the recommended Windows y version took. Once the newest release of Ubuntu was released, I decided to try the netbook remx of 10.04. It used even less RAM; only about 150mb. I thought I'd found my OS. I certainly settled in and prepared to use it forever. Then, someone I know suggested I try cunchbang. It is the most minimalistic UI I've ever seen, using Openbox rather than Gnome or KDE. Very slick, simple and clean. Since I am using the alpha of the most recent version (using Debian Squeeze), the apps provided for you are few...although more will be provided soon. You do have a word processor, etc., although not the OpenOffice you would normally get in Ubuntu. But the best part? 48MB. That's it. 48mb fully loaded, supporting what I can "hotel services". It's fast, boots quick, and believe it or not, I can even do Java-based development....on my netbook! Pretty slick.   More on it as I use it.

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  • Encoding movie files into h264

    - by Shiki
    Found some topics about archiving into h264, but those were about the generic questions (does it worth it, which codec to use.) I want to use h264 (with CUDA (if possible)). So far I only found Avidemux a usable encoder with x264 but it makes an unwatchable video file after the encoding (using the best profile, all setting maxed out), really blurry. Please write down detailed what to use, where to get it (if its free, doesnt matter), what to set, etc. Thanks in advance. (OS: Windows 7 ulti x64, VGA is VP2 capable with CUDA GTX260 XFX) Of course, if there is an up to date duplicate, just comment with the link and I'll remove the question ASAP.

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  • Splitting Ethernet cable

    - by Nathan
    I am looking for the best way to network my small business. I have an office where my router/modem are located, and then 2 more computers in another room. I can route Ethernet to this room with about 75 ft of cabling, and I would like to do this because my computers on Ethernet are getting 3x the speed as computers on wireless. Is there any way I can use just one Ethernet cable to span the 75 feet, and then maybe 2 smaller ones to go to the two computers from there? If there's a simple way to do this, maybe with a connector that would be ideal, as opposed to buying over 150 ft of cabling. Thanks!

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  • Management Reporter Installation – Lessons Learned

    - by Ryan McBee
    After successfully completing several installations of Management Reporter this year, I wanted to share a few lessons learned that should help you. First, you will want to make sure that you install Management Reporter under a domain account as opposed to a local system or network service account. Management Reporter gives you the option to install under these accounts, but it is a be a best practice approach to use a domain account. Upon installation of Management Report, you will want to make sure that Directory Browsing is enabled within the IIS server of your site or you will have problems when you go to use Management Reporter. By default, it will be disabled in Server 2008 R2 and you will need to make the setting change under the Actions pane shown below. Lastly, you will want to make sure that SQL Server is running under a domain account. I have had multiple situations where reports have been stuck in the Queued status rather than Processing status of Management Reporter. After reviewing resolution 5 of KB 2298248, it was determined that running SQL Server under a domain account is the way to go.

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  • Enable dtrace without sudo on Mac OS X?

    - by Juan
    How do I enable users to use dtrace on Mac OS X. I am trying to do the equivalent of strace on Linux, and I don't like running applications with elevated privileges. UPDATE Ok, the best I can tell. The only way to keep a nefarious application from ruining the system by debugging it is to. Attach to the process in a separate console Use sudo twice So that: sudo dtruss sudo -u myusername potentially_harmful_app I verified this with this short program: #include <iostream> #include <unistd.h> int main() { std::cout << "effective euid " << geteuid() << "\n"; } See this discussion for more info: http://discussions.apple.com/message.jspa?messageID=6430877

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  • Where should SQL/DB Queries be encapsulated in a software system?

    - by Stephen Bennet
    I frequently write small applications (either web based or otherwise) that require heavy database usage. i've attempted various ways of handling where to put the actual sql queries (sort of ad-hoc ORM systems). These include: Models that build themselves up - and only allowing SQL to be inside of a model. A sort of factory style method where the models are built by a factory class that is allowed to know about SQL. A third entity that maps models based on their fields/keys into the database and generates SQL code on the fly based on this. Is there a common knowledge of which method is best? Or another way I have missed? Clearly a lot of it will be based on the context of the system itself, which for me is usually to produce lightweight tools or utility frameworks. In experimenting, I've never found any of them that feel intuitively "right" and not clunky, but I also do not want to go for a full framework such as Django or Ruby - both because the tools I create are in a variety of languages and because they usually do not warrant that level of surrounding footprint.

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  • Importing video from a videotape recorded on Soy Handycam

    - by Akhil Langer
    I used Windows Movie Maker to import videos from a videotape recorded on Sony handycam. I imported the video in .avi format( as it was giving the best video quality), but the size of the video is very large (8GB for just 1 hour). Moreover, it takes a lot of time to import the video in Windows Movie Maker (approx. 2.5 hrs. for 1 hour video). Please suggest some other software which is more robust in the sense that it can give good quality video in lesser size and also it should be able to import the video quickly(as I have to import many video cassettes).

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  • Recycle Bin for Windows Server 2003 File Shares

    - by Joseph Sturtevant
    One of the networks I administrate uses Windows Server 2003 File Shares to provide network storage for users. To prevent against accidental deletion, I use Shadow Copies to create snapshots twice a day. This method is only effective, however, for files which were on the share during the last snapshot. When users accidentally deleted files recently placed on the share, I have no recourse except to remote desktop into the server and attempt retrieval with an undelete utility (this is only effective if the file has not been overwritten). Is there a feature like the Windows Recycle Bin for Windows Server 2003 File Shares? What is the best way to protect my users against accidental file deletion in this scenario?

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  • How to either completely remove SQL Server 2008 R2 Installation or repair it?

    - by Nico
    I've installed MSSQL server correctly, then I took some wrong turns and I'm now left in a pretty undesirable state. I wanted to change the server instance to another drive, so I uninstalled SQL server and all of it's features from the Programs and Features control panel. Now when I tried to install a new instance, I got a few errors, but it still installed most of them: Then I tried to run a repair, which I figured would fix things, but it throws an exception about not being able to read something from the CD (tried more than once always the same exception) Error 1316.A network error occurred while attempting to read from the file R:\1033_ENU_LP\x64\setup\SSCERuntime_x86-enu.msi , and it fails to repair a few of the features: And I don't have the server instance installed either. So I'm left with no MSSQLMS, no server instance, and no happiness. What would be the best course of action here?

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