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  • How are software projects 'typically' managed/deployed

    - by rguilbault
    My company is evaluating adopting off-the-shelf ALM products to aid in our development lifecycle; we currently use our own homegrown solutions to manage requirements gathering, specification documentation, testing, etc. One of the issues I am having is that we have what we call a pipeline, which consists of particular stops: [Source] - [QC] - [Production] At the first stop, the developer works out a solution to some requested change and performs individual testing. When that process is complete (and peer review has been performed), our ALM system physically moves the affected programs from the [Source] runtime environment to the [QC] runtime environment. You can think of this as analogous to moving some web pages from the 'test' server to the 'live' server, where QC personnel can bang on the system and complain that the developer has it all wrong ;-) Once QC signs off that the changes are working, the system again moves the code along to the next stage, where additional testing is performed, etc. I have been searching the internet for a few days trying to find how the process is accomplished anywhere else -- I have read a bit about builds, automated testing, various ALM products, etc. but nowhere does any of this state how builds interact with initial change requests, what the triggers are, how dependencies are managed, how the various forms of testing are accommodated (e.g. unit testing, integration testing, regression testing), etc. Can anyone point me to any resources or attempt to explain (generically) how a change could/should be tracked and moved though the development lifecycle? I'd be very appreciative. To keep things consistent, let's say that we have a project called Calculator, which we want to add support for the basic trigonometric functions: sine, cosine and tangent. I'm open to reorganizing the company however we need to in order to accomplish due diligence testing and we can suppose that any tools are available for use (if that helps to illustrate the process). To start things off, I think I understand this much: we document the requirements, e.g.: support sine, cosine and tangent functions we create some type of change request/work order to assign to programming coding takes place, commits are made to version control peer review commences programmer marks the work order as completed? ... now what? How does QC do their thing? Would they perform testing before closing the 'work order'?

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  • How To Setup Domain Name for SchoolTool Local Server

    - by zeroseven0183
    I am currently testing SchoolTool 2.0 and I would like to do some things: This application is installed on a virtual machine running Ubuntu Server 11.10 bridged to our home network. The site is accessible through IP address. What I would like to do is setup a local domain, say schooltool.ourhomedomain.com. I thought my sister would appreciate it more if it were not via IP address. If there's anymore information needed, let me know. Thanks in advance!

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  • VirtualBox sous Linux, un tutoriel pour apprendre à utiliser le logiciel de virtualisation

    Bonjour,Je vous présente un tutoriel sur l'utilisation de virtual box sous linux : Citation: VirtualBox est un logiciel de virtualisation de systèmes d'exploitation. En utilisant les ressources matérielles de l'ordinateur (système hôte), VirtualBox permet la création d'un ou de plusieurs ordinateurs virtuels dans lesquels s'installent d'autres systèmes d'exploitation (systèmes invités).Les systèmes invités fonctionnent en même temps que le système hôte, mais seul ce dernier a accès directement...

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  • where are apt-get files stored?

    - by loolooyyyy
    i have an ubuntu with three virtual machines running inside running ubuntu also i update the host using apt-get update but i can update VM's, it takes a long time + uses a lot of bandwith which i'm running out of,i want to transfer the updated files by apt-get to VMs, could you please tell me where are they? i'm not talking about the packages themselves stored in /var/cache/apt/archives, i want the file that stores list of available packages on mirror i have selected, thanks lot ps: i know this question has been asked somewhere but i cant find it!

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  • Application stuck in TCP retransmit

    - by SandeepJ
    I am running Linux kernel 3.13 (Ubuntu 14.04) on two Virtual Machines each of which operates inside two different servers running ESXi 5.1. There is a zeromq client-server application running between the two VMs. After running for about 10-30 minutes, this application consistently hangs due to inability to retransmit a lost packet. When I run the same setup over Ubuntu 12.04 (Linux 3.11), the application never fails If you notice below, "ss" (socket statistics) shows 1 packet lost, sk_wmem_queued of 14110 (i.e. w14110) and a high rto (120000). State Recv-Q Send-Q Local Address:Port Peer Address:Port ESTAB 0 12350 192.168.2.122:41808 192.168.2.172:55550 timer:(on,16sec,10) uid:1000 ino:35042 sk:ffff880035bcb100 <- skmem:(r0,rb648720,t0,tb1164800,f2274,w14110,o0,bl0) ts sack cubic wscale:7,7 rto:120000 rtt:7.5/3 ato:40 mss:8948 cwnd:1 ssthresh:21 send 9.5Mbps unacked:1 retrans:1/10 lost:1 rcv_rtt:1476 rcv_space:37621 Since this has happened so consistently, I was able to capture the TCP log in wireshark. I found that the packet which is lost does get retransmitted and even acknowledged by the TCP in the other OS (the sequence number is seen in the ACK), but the sender doesn't seem to understand this ACK and continues retransmitting. MTU is 9000 on both virtual machines and througout the route. The packets being sent are large in size. As I said earlier, this does not happen on Ubuntu 12.04 (kernel 3.11). So I did a diff on the TCP config options (seen via "sysctl -a |grep tcp ") between 14.04 and 12.04 and found the following differences. I also noticed that net.ipv4.tcp_mtu_probing=0 in both configurations. Left side is 3.11, right side is 3.13 <<net.ipv4.tcp_abc = 0 <<net.ipv4.tcp_cookie_size = 0 <<net.ipv4.tcp_dma_copybreak = 4096 14c11 << net.ipv4.tcp_early_retrans = 2 --- >> net.ipv4.tcp_early_retrans = 3 17c14 << net.ipv4.tcp_fastopen = 0 >> net.ipv4.tcp_fastopen = 1 20d16 << net.ipv4.tcp_frto_response = 0 26,27c22 << net.ipv4.tcp_max_orphans = 16384 << net.ipv4.tcp_max_ssthresh = 0 >> net.ipv4.tcp_max_orphans = 4096 29,30c24,25 << net.ipv4.tcp_max_tw_buckets = 16384 << net.ipv4.tcp_mem = 94377 125837 188754 >> net.ipv4.tcp_max_tw_buckets = 4096 >> net.ipv4.tcp_mem = 23352 31138 46704 34a30 >> net.ipv4.tcp_notsent_lowat = -1 My question to the networking experts on this forum : Are there any other debugging tools or options I can install/enable to dig further into why this TCP retransmit failure is occurring so consistently ? Are there any configuration changes which might account for this weird behaviour.

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  • Recommended learning path?

    - by stairmast0r
    First, my current standing: I know C++ at an.. advanced beginner level? I've gone through a book, I know the syntax well enough, I know a fair amount of standard library functions, and I've programmed some simple console stuff with it. I'd probably be able to program more with it if I knew how to structure a program, but I just can't seem to wrap my head around the whole concept of structuring something remotely complex. I've messed around with Java for a day or two, and the syntax was extremely easy to get the hang of, except that I didn't really know any functions. I'm plenty willing to learn, and to work hard to do so, but I don't really know where to go from here. Now, at the risk of sounding cliche, what I'd like to become is someone like the great three of id; Carmack, Romero, and Abrash. To be considered a genius. I believe anything can be learned, and nothing mentally limits anyone except lack of desire to learn. But I don't know how to learn this. They learned by doing, and making do with what resources they had. On the other hand, I have access to almost any books I want, access to the internet, and access to a more than capable computer and software. Should I learn more languages? Assembly? LISP? BASIC? Haskell? Should I dive straight into advanced topics like OpenGL? Or should I wait until I feel I've come closer to mastering the simpler things, like console programs, first? Should I follow tutorials? Should I follow books? Should I just dive into writing something and follow a reference manual as I go? What order should I do all this in? How should I do it? I want to completely master this; to be considered a genius. The most perfect career I can imagine is to start the next id. I have the drive to do it, I just don't know where to begin...

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  • SEO - The How and Why

    As the influence of social networking sites and the internet increases, focus of mankind is slowly shifting from real life to the virtual space and why not, it's fun, dynamic and cheap. So it wasn't long before businesses started recognizing the importance of online advertising.

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  • Is C++ still a "language"?

    - by slashmais
    Considering that C++ is a conglomerate of at least the following: C C-with-classes (original C++) templates (class, function) template meta-programming variadic templates(pdf) lambda functions preprocessor macros, pragma's each of which requiring specialized knowledge of their distinct implementation semantics. You can use only some of the above and call your code "C++". Still a language?, or else what is it?

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  • How can i turn a virtualbox disk partion to be my main boot system? (read description)

    - by user75975
    I recently had windows xp installed on my pc and chose to try ubuntu but i did a full install with ubuntu. I luckily chose to create a backup windows iso before the install and now want to reinstall windows but i couldnt find a sufficient program to mount the iso to my cd disk. My question is how can i burn the disk using VirtualBox or even how can i transform a virtual box partion to my main OS system?? thx in advance

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  • Web Development Services - What's the Need?

    With the each passing day, Internet is becoming more and more popular and everyone wanting to have a strong online presence. The long established brick-and-mortar businesses have switched to virtual storefronts. Those who haven't done as yet, would soon face extinction.

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  • EMC VPlex Buyer's Guide

    With its recent release of VPlex, EMC is anything but quiet about its private cloud vision. At EMC World earlier this month, it elaborated on tis plans to go the distance with virtual storage.

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  • EMC VPlex Buyer's Guide

    With its recent release of VPlex, EMC is anything but quiet about its private cloud vision. At EMC World earlier this month, it elaborated on tis plans to go the distance with virtual storage.

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  • Cyber Stalkers and the Internet - Know the Dangers

    Many people perform a variety of functions on the internet. There';s nowhere else you can bank, pay bills, shop and meet people all with the click of a few buttons. The reason so many people choose th... [Author: Ed Opperman - Computers and Internet - June 14, 2010]

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  • Using macro to check null values [migrated]

    - by poliron
    My C code contains many functions with pointers to different structs as parameteres which shouldn't be NULL pointers. To make my code more readable, I decided to replace this code: if(arg1==NULL || arg2==NULL || arg3==NULL...) { return SOME_ERROR; } With that macro: NULL_CHECK(arg1,arg2,...) How should I write it, if the number of args is unknown and they can point to different structs?(I work in C99)

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  • Argument on Ranking of SEO Links

    SEO and link building can be a marketing tool considering the fact that the amount of traffic a site generates is a direct outcome of the links it has been given by the owner. Committed Link building is very essential for good standing of a virtual address.

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  • Conditional checks against a list

    - by AnnaSexyChick
    I was wondering how computers do this. The most logical way I can think is that they are iterating trough all elements of the list until they find one that matches the condition :) For example if you call function_exists(), PHP should iterate trough all defined functions until it meets the one that matches the name you're looking for. Is this true that this is the only way? If it is, it sounds like it's not very efficient :s

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  • I upgraded ubuntu to 12.10, and the internet does not work on vbox

    - by user100607
    Last week, I upgraded my operating system to Ubuntu 12.10 from 12.04, and the internet stopped working on two virtual machines (launched with virtualbox), Windows XP and OSX Snow Leopard. OSX also stopped working completely at first, but I fixed that by switching to the 64 bit option in the vbox settings. I switching to bridged networking from NAT restored the internet to Windows, but not to OSX. Does anybody know what I could be doing wrong?

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