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  • Compizconfig Grid doesn't work under Ubuntu as virtual machine

    - by SoftTimur
    I have installed Ubuntu as virtual machine within Mac. I have installed VM tools. The approach in this link of Compizconfig Grid, which worked in my previous laptop where Ubuntu was not a virtual machine, does not work anymore. I set some shortcut, but no action is launched... Does anyone know why? The major functionality I need from Grid is tiling windows to left/right side of the screen... Does anyone know any alternative?

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  • Xubuntu fails to stay awake when the machine is under load

    - by Alex
    I have the following problem with a fresh install of Xubuntu 12.04: I set up power management options so as to send the machine to sleep after it's been idle for a while. My intention was to have it finish some lengthy numbercrunching and then fall asleep late at night when nobody's present to shut it down. What actually happened, however, is that the machine goes to sleep whenever the desktop session has been idle for the specified amount of time, and it does not seem to care at all about CPU load, and I had to disable sleep altogether. Is there any way to fix this?

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  • Setting Up and Running Summary Advisor on an Exalytics Machine (Oracle-by-Example)

    - by Saresh
    If you are running Oracle BI on an Exalytics machine, you can use Summary Advisor to identify the aggregates that will increase query performance. Summary Advisor intelligently recommends an optimal list of aggregate tables based on query patterns that will achieve maximum query performance gain while meeting specific resource constraints. Summary Advisor then generates an aggregate creation script that can be run to create the recommended aggregate tables. Aggregate tables reduce query times by storing precomputed results for queries that include rolled-up data. This tutorial covers steps to set up, configure, and run Summary Advisor on an Exalytics machine using TimesTen database as a target for storing aggregates. You can find the Oracle By Example (OBE) in the Oracle Learning Library (OLL). The content in OLL is available to all customers, partners, and employees.

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  • Connect to a VPN from a Virtual Machine

    - by kaharas
    I am running an Ubuntu ditro inside a VMWare virtual machine with a bridged connection on a windows 7 host. What I am trying to do is to have the virtual machine connect to a VPN, but I'm not having much success. At first, the system was using wicd, but I replaced it with network-manager who's supposed to have OpenVPN support. The problem is, even tho i've purged the wicd installation, there're connections shown in the network manager, and still, I'm able to access the net. I've also added the openvpn data in the network manager tab, but it's shown as never used. PS: when I try to stop and start the NetworkManager service, an error message pops up telling me that there's not such a service, but apt-get tells me i've already installed it...

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  • Hyper-V virtual machine can't be migrated to a specific host in the cluster

    - by Massimo
    I have a three-node Hyper-V cluster running on Windows Server 2008 R2 which is working quite flawlessly: there are no errors, live migration works, all hosts can and will happily run all virtual machines, and so on. But one specific virtual machinee is trying to make me go mad: it works on two nodes of the cluster, but not on the third one. Whenever I try to move the VM to that node, be it in a live migration or with the VM powered off, it always fails. In the event log of the host these events are logged: Source: Hyper-V-VMMS Event ID: 16300 Cannot load a virtual machine configuration: General access denied error (0x80070005) (Virtual machine ID <GUID>) Source: Hyper-V-VMMS Evend ID: 20100 The Virtual Machine Management Service failed to register the configuration for the virtual machine '<GUID>' at 'C:\ClusterStorage\<PATH>\<VM>': General access denied error (0x80070005) Source: Hyper-V-High-Availability Event ID: 21102 'Virtual Machine Configuration <VM>' failed to register the virtual machine with the virtual machine management service. All other VMs can be moved to/from the offending host, and the offending VM can be moved between the other two hosts. Also, this is not a storage problem, because there are other VMs in the same cluster volume, and the host has no troubles running them. What's going on here?

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  • Windows 7 machine, can't connect remotely until after ping

    - by rjohnston
    I have a Windows 7 (Home Premium) machine that doubles as a media centre and subversion server. There's a couple of problems with this setup, when connecting to the server from an XP (SP3) machine: Firstly, the machine won't respond to it's machine name until after it's IP address has been pinged. Here's an example: Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\Rob>ping damascus Ping request could not find host damascus. Please check the name and try again. C:\Documents and Settings\Rob>ping 192.168.1.17 Pinging 192.168.1.17 with 32 bytes of data: Reply from 192.168.1.17: bytes=32 time=2ms TTL=128 ... Ping statistics for 192.168.1.17: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 1ms, Maximum = 2ms, Average = 1ms C:\Documents and Settings\Rob>ping damascus Pinging damascus [192.168.1.17] with 32 bytes of data: Reply from 192.168.1.17: bytes=32 time<1ms TTL=128 .... Ping statistics for 192.168.1.17: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 1ms, Average = 0ms C:\Documents and Settings\Rob> Likewise, subversion commands with either the machine name or IP address will fail until the machine's IP address is pinged. Occasionally, the machine won't respond to pings on it's IP address, it'll just come back with "Request timed out". The svn server is VisualSVN, if that helps... Any ideas?

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  • Broken filesystem on Windows XP / 7 virtual machine

    - by Pekka
    I created a virtual machine with Windows XP as the guest system in Microsoft's Virtual PC that ships along with Windows 7. I then installed Virtualbox and began running the MS machine in it. It worked fine. Then, I accidentally started the machine in Microsoft's Virtual PC again. The screen stayed blank, so after a while, realizing my mistake, I closed the Machine. Since then, the VM won't start any more, claiming massive file system problems. Starting Windows in normal mode results in a SOMETHING_FILESYSTEM blue screen; I can start in protected mode and run a checkdisk. That will fix something on every run, but every time I restart, it will start again. I tried re-booting the VM with the Windows CD and doing a repair install. I didn't watch whether that worked out, but I'm caught in the reset / check disk / reset cycle again. Is there anything VM specific that can still be done? On a physical machine, I would say reformat. Is there any way to get hold of the data on the virtual machine through either Virtual PC or Virtualbox? It was an experimental machine, but I had started entering some data on it that would be nice to recover.

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  • Make a drive from one machine appear as a physical disk in another machine.

    - by Roberto Sebestyen
    I want to take a physical disk (or part of a disk) in one machine (call it machine-A) and I want to make it available in another machine (machine-B). But I don't want to map a network drive. I want it to appear in machine-B as a physical drive. Even though it is not a physical drive. The reason I want to do this is i want the ability to create shares in machine-B on that drive. Since I cannot do that on mapped drives, I need to use some utility that fools machine-B to think that it is a physical drive, and treat it as such. Both of these machines are windows server 2003. I heard about NFS, It sounds like what could be the solution to my problem. But isn't that a Linux/Unix protocol? What tools can I use to make this happen? Are there any open source solutions? I don't care what the solution is, as long as it achieves the end result, preferably open source solution though. Thanks for reading guys and gals!

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  • ubuntu on virtual machine vs ubuntu install, what the difference?

    - by Yosef
    Hi, I have windows xp in my work and i programming on zend framework. I need to install ubuntu for execute doctrine orm commands from linux console, I faile to do it on windows. I thinking about 2 option of UBUNTU installation: 1.install ubuntu 10.04 on Virtual Box (Sun Virtual Machine). 2.create new primary partition and install ubuntu 10.04 directly. Which options do you suggest to do? Thanks

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  • If i write in assembly or machine language, will the program work on any computer with a compatible processor?

    - by user663425
    Basically, i'm wanting to know if i can use either machine or assembly language to write a program that will work on any computer with an x86 processor, despite differences in operating systems. For example, you run a program and no matter what computer it's on, it'll display "Hello, World!" I know it's a little crazy to want to know either of these to languages, but i figure it's an incredible thing to learn, so why not?

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  • .NET or Windows Synchronization Primitives Performance Specifications

    - by ovanes
    Hello *, I am currently writing a scientific article, where I need to be very exact with citation. Can someone point me to either MSDN, MSDN article, some published article source or a book, where I can find performance comparison of Windows or .NET Synchronization primitives. I know that these are in the descending performance order: Interlocked API, Critical Section, .NET lock-statement, Monitor, Mutex, EventWaitHandle, Semaphore. Many Thanks, Ovanes P.S. I found a great book: Concurrent Programming on Windows by Joe Duffy. This book is written by one of the head concurrency developers for .NET Framework and is simply brilliant with lots of explanations, how things work or were implemented.

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  • Any specifications/docs around optimization of Google Apps Script, to avoid timeouts and "hangs"

    - by BruceM
    From my experience so far, it seems that if you write a script that makes lots of expensive calls close together, the functionality just "hangs", or you get inconsistent responses, and have to refresh the browser because sheets stop updating etc. Are there any docs or specs that clarify this, as releasing an app fr real-world use is not possible if users can expect it to work most of the time, and produce random results every now and then...

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  • Functional Specifications vs. Requirements Document

    - by KP
    Guys, Currently in my comp., there are some changes going on regarding project documentation. There is a LOT of time and effort spent on discussing functional specs vs. requirements doc. However, I don't think anyone here understands the reason why you would use one over the other. Therefore, I don't understand the difference myself. Can someone shed some light on this matter plz? If you have links to articles, blog posts, etc. that would be helpful too. Thanks

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  • Loading GUI on host machine through SSH with X11 forwarding

    - by cdated
    I've got applications on my host machine running fine by runnning: $ssh -X user@host Welcome to host $firefox Firefox proceeds to run in client display from the host machine. How do I get firefox to load on the host machine's display so I could remotely manage the host machine's running GUI applications? I need my application to load a GUI on a remote machine without walking to that machine.

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  • References for better performance of newer JSF specifications

    - by Pentius
    Dear fellows, I'm looking for a reference to cite, which states that JSF 1.2 performs better than JSF 1.1. Or JSF 2.0 over JSF 1.2 respectively. I'm quite sure that I've read something like this before but can't find it anymore. Maybe you can help. Or is this mischief and there are no official statements regarding the performance?

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  • Why is there no .NET Community Process?

    - by michielvoo
    I was doing some research into general topics of software engineering and I came across the Java Community Process website: The JCP is the mechanism for developing standard technical specifications for Java technology. Anyone can register for the site and participate in reviewing and providing feedback for the Java Specification Requests (JSRs), and anyone can sign up to become a JCP Member and then participate on the Expert Group of a JSR or even submit their own JSR Proposal. Seems like a good idea to me, and there are lots of very well written specifications and reference implementations on the JCP website. So why is there no .NET Community Process? Is that something that Microsoft could or should start? Maybe they could install it on Codeplex.net and hand over the keys to the community.

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  • Developing on a windows machine that interacts with a linux system

    - by Jamie
    Sorry for the bad title (couldn't think of a better way to describe it) I have a windows machine which I do development on. However, I have a new project which needs to interact with a linux system (executing linux commands etc.). So, obviously I can't do development on my windows machine..and I don't wish to code on the dev machine, svn commit and then svn update it on the linux machine. Is there a way where any changes I make on my dev machine will be quickly mirrored to the linux machine? SVN is not a very quick alternative and of course some changes will be very minor. Any ideas? A network share I guess....but that's not very pretty (bit slow too). As fellow developers I would like to know if you've been in a similar situation and how you've resolved it. On a furthernote, I can't just install Ubuntu as my development machine and mirror the commands, applications etc. from the linux machine because it's a cluster 'master' machine and so therefore it has quite a special configuration. Thanks guys! EDIT: I've also thought about having web services on the linux machine and then just calling them from code thus seperating platform development dependency. What do you think about that too? thanks

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  • Convince teammates to follow standards

    - by folone
    There's always one or two guys, who think, they are great programmers, and they don't need any literature/specifications/etc. They usually write awful code, that makes you want to hurt them. They catch and suppress Throwable's, return null's, concatenate String's in large loops, do other stupid stuff. So the question is — How do I make such a person follow best practices and specifications? He does not listen (cause he's the best programmer), team lead does not give a damn ("It actually works, so why changing it?.."), and I'm actually tired of rewriting that awful code on my own. What do I do? What would you do?

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  • scrum and specifications

    - by zachary
    So we start Scrum today and start going over story points estimates. The first story that comes up is a new screen that needs to be developed. It has 1 sentence to describe the screen and 3 user acceptance tests. This starts a fight between the development team and the product owner. Product owner says that stories do not need to be speced out and they will just be fleshed out during the sprint. We say that the story needs to be completely speced out for the sprint. But now I am starting to be unsure about who is right.... Any good articles on this that I can send to the team about how defined a user story has to be?

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  • Does Windows notice when a VM is moved around?

    - by Martin
    I'm thinking of migrating a Desktop machine (Windows XP) to a VM solution (VirtualBox or MS Virtual PC). The reason is that I need a new hardware anyways and I don't want to (cannot properly) reinstall all the "business" apps on there. So my plan goes as follows: I'll pull an image of the machine and restore it to a Virtual Machine using Acronis Universal Restore or some other tool that can restore to dissimilar hardware. (The process is largely irrelevant for this question I think.) Once I have this virtual machine properly running I'll move it to a new PC. So the question now is. Are there any caveats wrt. to Windows (XP?) being installed in a VM and the VM machine being moved around on different host computers? Can anything break in the OS inside the VM? Will there be troubles wrt. to Windows activation?

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  • Erlang Types Specifications

    - by Chang
    I recently read the source code of couch-db, I find this type definition which i don't understand: -type branch() :: {Key::term(), Value::term(), Tree::term()}. -type path() :: {Start::pos_integer(), branch()}. -type tree() :: [branch()]. I did read Erlang doc, But what is the meaning of Start, Key, Value and Tree? From what i understand, they are Erlang variables! I didn't find any information about this in Erlang doc.

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