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• How do I get an Xstream mobile phone working as a modem?

  - by callmegus

  I bought a CDMA mobile phone that can use as modem, this http://smartfren.com/xstream/ and i wanna try it on my ubuntu plug usb , and run "lsusb" callmegus@Presario-CQ43-304AU:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 058f:a001 Alcor Micro Corp. Bus 003 Device 002: ID 1bbb:0106 T & A Mobile Phones Bus 003 Device 003: ID 15d9:0a4c Trust International B.V. USB+PS/2 Optical Mouse Bus 004 Device 002: ID 0a5c:21e3 Broadcom Corp. I successfully "modprobe" this device, and connect to internet, but it's disconnected somehow .. and i can recconect it. I try "lsusb" again .. and something went wrong, here Bus 003 Device 002: ID 1bbb:1000 T & A Mobile Phones I do "modprobe" again and again , but it still won't connect Please guide me

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• Gateway m-1625 laptop keeps shutting down

  - by Jerome

  I have a gateway m-1625 laptop. The specs are: 3gig DDR2 ram, amd turino*2 processor 2Ghz, 250gig HD, windows 7 ultimate. After installing unbuntu 11.10 and using it for about an hour my laptop starts shutting down most times before even reaching the log on screen. I have re installed it twice but the problem still persist. I had this same problem with ubuntu 11.04. I have been using ubuntu for the last 5 years and never had this problem before. Windows 7, vista and fedora runs fine, it just ubuntu that gives any sort of issue. What could be causing this problem? has something critical been changed since the 10.10 version? I really love ubuntu and i want to be able to run it again

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• How to document and teach others "optimized beyond recognition" computationally intensive code?

  - by rwong

  Occasionally there is the 1% of code that is computationally intensive enough that needs the heaviest kind of low-level optimization. Examples are video processing, image processing, and all kinds of signal processing, in general. The goals are to document, and to teach the optimization techniques, so that the code does not become unmaintainable and prone to removal by newer developers. (*) (*) Notwithstanding the possibility that the particular optimization is completely useless in some unforeseeable future CPUs, such that the code will be deleted anyway. Considering that software offerings (commercial or open-source) retain their competitive advantage by having the fastest code and making use of the newest CPU architecture, software writers often need to tweak their code to make it run faster while getting the same output for a certain task, whlist tolerating a small amount of rounding errors. Typically, a software writer can keep many versions of a function as a documentation of each optimization / algorithm rewrite that takes place. How does one make these versions available for others to study their optimization techniques?

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• Can desktop applications be written using javascript?

  - by jase21

  Is it currently possible to write desktop applications using javascript, html, css? Possible solutions: Use Adobe AIR runtime and program in js. But no, if I'm using AIR, the AS3 suites it the most. So not a good option. GWT: No because it uses Java and then convert it to js or what ever. Pyjamas: Interesting. But I'm currently focusing on JavaScript. So I don't want to use python and cross-compile to js. Run a local server and use the browser in full screen mode. Sort of okay, but still its the same browser thing. And difficult to distribute. So what is the best option? I'm excited about node.js which is the main reason for looking into JavaScript. Otherwise I would have choose python.

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• 2D Physics in a networked game (iOS)?

  - by Pedro

  I am researching the possibilities for a new iOS game. It's going to be a run-n-gun type platformer, and I'm looking into the possibility of co-op multiplayer. The game itself wouldn't be very physics intensive, there will most likely be 20-30 physics bodies at any given time. For the multiplayer, I think I would have one player "hosting" and up to 3 other connecting via the Internet. Here's my first question, are there any 2D physics engines that work over a network(preferably open source)? My second question, Does anyone have any thoughts on using a non-networked engine (like Box2D or Chipmunk) and adding the networking component? Since there would not be very much information sent, do you think it would cause a lot of lag?

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• 12.04 LTS won't install from CD

  - by Rob Hays

  I've been trying to install 12.04 LTS onto a Dell with a PIII from CD. Booting from the CD the install gets through the "Who are you" process, begins copying files. The progress bar gets as far as the last period in "Copying files...". The box clears, and an error box comes up "The installer has encountered an unrecoverable error. A desktop session will now be run so that you may investigae the problem or try installing again." When I try to install from this desktop session, the install gets to the same point, the copying files box closes, and then just stops. The pointer is busy, the cd drive spins up occaisonally with no data transfer, no hard drive activity. When I boot from the CD and access the disk boot menu, the disk checks good, memory checks good ( I upgraded the original memory to 512 mb). I also updated the bios to the newest from Dell. This is an older L866r, but should meet the requirements.

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• script shortcut to open two files in gedit as sudo

  - by Sam

  I want to double click a file on my desktop, and have two files be opened in gedit as sudo. Whenever I'm making a new website, I need to open /etc/hosts /etc/apache2/sites-enabled/000-default.conf as sudo. At the moment this means opening the terminal, runing sudo gedit then opening each file manually. I want to streamline this part of my workflow. On windows I had wrote a little bash script which worked nicely. How can I do the same in ubuntu? So far in my searches I've come across ways of adding a shortcut to the file browser, and similar things, but not exactly what I want. I have tried creating a desktop launcher, but can't see how to make it run as sudo.

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• Is OpenStack suitable as a fault tolerant DB host?

  - by Jit B

  I am trying to design a fault tolerant DB cluster (schema does not matter) that would not require much maintenance. After looking at almost everything from MySQL to MongoDB to HBase I still find that no DB is easily scalable - Cassandra comes close but it has its own set of problems. So I was thinking what if I run something like MySQL or OrientDB on top of a large openstack VM. The VM would be fault tolerant by itself so I dont need to do it st DB level. Is it viable? Has it been done before? If not then what are the possible problems with this approach?

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• Attempting to GREP details of a Java error

  - by BOMEz

  I'm running Ubuntu 11 and I'm having some issues with grep. I have a shell script (see below) which essentially checks if a certain Java program of mine is running, if not it runs it. That part works out great! If my Java application throws any kind of exception however I would like to capture that information and email it to myself. How can I go about checking to see if the call to java -jar /bin/MyApp.jar fails? I tried piping it to grep, but that doesn't seem to work. Below is the full script that I've written: #Check if MyApp.jar is running, if not run it. if [ $(ps aux | grep 'java' | grep -v grep | wc -l | tr -s "\n") -eq 0 ] then echo "PacketCapture Starting...\n" java -jar /bin/MyApp.jar echo "PacketCapture Started.\n" else echo "PacketCapture already running.\n" fi

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• Choice of Operating System Version for Azure Roles

  - by kaleidoscope

  Customers can now choose when their applications receive new operating system updates and patches by selecting which version of the operating system their applications will run on in Windows Azure.  Right now there is only one available operating system version (released on December 17th, 2009), but new builds with the latest updates and patches will be released regularly.  This new feature allows developers to test their applications when new patches come out before upgrading their production deployments. To select an operating system version for your application, add the new osVersion attribute to your service configuration file.  The full list of available operating system versions is maintained in the Configuring Operating System Versions topic in the Windows Azure MSDN documentation.   Sarang, K

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• Using Google Analytics to determine how much time a visitor spends in each section of my site

  - by flossfan

  I have a site with various pages, like: /about/history /about/team /contact/email-us /contact I want to figure out how much time people are spending on the entire /about section, and how much on the /contact section. If I run a query on the Google Analytics API and set the dimension to ga:pagePathLevel1 and the metric to ga:avgTimeOnPage, I get results like this: { pagePathLevel1: /about, avgTimeOnPage: 28 }, { pagePathLevel1: /contact, avgTimeOnPage: 10 } This looks roughly like what I want, but I'm not sure how to intepret it: Is the value of avgTimeOnPage the average time spent by any user on all pages that match that path? Or is it the average time spent by any user on any single page that matches that path? I'm looking for the average time spent across all pages matching that path, but the time estimates look shorter than I'd expect.

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• Is content slowing down your business?

  - by Lance Shaw

  We are living in a digital world, however paper is everywhere and expensive, right? We all agree content is an important part of our organization and contribute to its decision making. However many of us see dealing with this as a challenge and the growth of content is impacting our ability to scale and respond quickly to our customers. Business always has been content intensive. For JD Edwards customers, this is an important consideration.  After all, the processes being run in JD Edwards are usually very critical to the success of your business and if they are not running as smoothly as they should due to manual process steps involving paper or searching for content, you should look into improving them.  To that end, we hope you will join this webinar and learn how Oracle and KPIT | SYSTIME have partnered to help a JD Edwards customer content-enable its enterprise with Oracle WebCenter Content and Oracle WebCenter Imaging 11g and integrate them back with JD Edwards to significantly improve processing speed and operational costs.

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• Sorting a REALLY BIG delimited text file in UNIX / VMS [closed]

  - by gunbuster363

  Hi everyone, I am going to sort a REALLY BIG delimited text file, say 250Mb (or a bunch of files of more or less than 250Mb) . It have 37 fields, and I need to sort it by 5 fields, for example 1st, 4th, 5th, 6th 7th fields. Under Unix / VMS, do I have a good option to do this FAST? I can write COBOL program. Now I am trying to sort them using the below command, but it already run for a long time and just not going to finished. Thank you. The command I used: time sort -t ',' -o sorted.txt +0 -1 +4 -5 +5 -6 +6 -7 +22 -23 *.DAT_gprscdr_ftpd

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• How do I install the driver for my Linksys AE1200 Wireless-N USB Adapter?

  - by Lewis Graham

  I recently downloaded Ubuntu from the main website with the hopes of dual booting it with Windows. While the operating system works, it says that I need to install a driver for my graphics card. When I type in my password the installation fails. I figure it is because I need Internet access. I tried to install my WiFi USB adapter with the installation disc but Ubuntu doesn't seem to run the setup when I click the exe. What are my available solutions as I would really like to use Ubuntu from my programming and Windows for my gaming needs? The name as read on the box is: Linksys AE1200 Wireless- N USB Adapter The description reads as such: ID 13b1:0039 Linksys (a comma messed up format) ID 046d:0a0b Logitech, Inc. ClearChat Pro USB (headset)

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• Is there a limit of emails/pictures per Gravatar account?

  - by Steve Taylor

  I'm building a site to connect patients to doctors. Each doctor will have a profile picture. I'm quite happy to manually maintain the profile pictures as there won't be that many doctors nor will they have a need to change their picture very often, if at all. I thought of using Gravatar to host all these profile pictures. The idea is to create a single Gravatar account then keep adding email addresses to it in the form [email protected] and associating each one with a new image. Does anyone know, however, if I will run into any per-account limit? If so, it wouldn't be feasible because I would end up with a bunch of Gravatar accounts instead of just the one.

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• What software development model has worked best for software teams with heavy dependancy on hardware teams?

  - by MasterDIB

  So, let me explain more. There are a number of competing best practices for software development. I can find that many teams have benefited from Agile practices in some cases. In some other cases, using the Unified Process has been championed by large companies like IBM. The common themes that I find seemed to work well for teams that mainly develop software. I am interested to know what has worked best for people who have worked in shops where there is a team on the other side that produce the hardware that your software is running on. For example, one team puts together a crate with several custom hardware on it; while you need to develop the software that would run on those crates. I can't find a development model (agile, spiral ...) that works best in this case. Any wisdom is this area will be well appreciated.

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• Webcast: Moving Client/Server and .NET Applications to Windows Azure Cloud

  - by Webgui

  The Cloud and SaaS models are changing the face of enterprise IT in terms of economics, scalability and accessibility . Visual WebGui Instant CloudMove transforms your Client / Server application code to run natively as .NET on Windows Azure and enables your Azure Client / Server application to have a secured-by-design plain Web or Mobile browser based accessibility. Itzik Spitzen VP of R&D, Gizmox will present a webcast on Microsoft Academy on Tuesday 8 March at 8am (USA Pacific Time) explaining how VWG bridges the gap between Client/Server applications’ richness, performance, security and ease of development and the Cloud’s economics & scalability. He will then introduce the unique migration and modernization tools which empower customers like Advanced Telemetry, Communitech, and others, to transform their existing Client/Server business application to a native Web Applications (Rich ASP.NET) and then deploy it on Windows Azure which allows accessibility from any browser (or mobile if desired by the customer). Registration page on Microsoft Academy: https://www.eventbuilder.com/microsoft/event_desc.asp?p_event=1u19p08y

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• Code review vs pair programming

  - by mericano1

  I was wondering what is the general idea about code review and pair programming. I do have my own opinion but I'd like to hear from somebody else as well. Here are a few questions, please give me your opinion even on some of the point First of all are you aware of way to measure the effectiveness of this practices? Do you think that if you pair program, code reviews are not necessary or it's still good to have them both? Do you think anybody can do code review or maybe is better done by seniors only? In terms of productivity do you think it suffers from pairing all the times or you will eventually get in back in the long run? Thanks!

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• Set default app for opening an extension [closed]

  - by Primož Kralj

  I am using Linux Mint 13 with Cinnamon. I have a problem setting an application to open a file with some extension when the application is actually only extracted, not really installed using apt-ger or .deb file. For example - Blender. You can download a .tar.gz from official site which you then extract and you can just run the app. However, it isn't listed in the default apps list (Right Clickon file - Open with other application - Show all installed apps). So now I have to always open the application first and open the file from there. How can I solve this?

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• Configuring MySQL Cluster Data Nodes

  - by Mat Keep

  0 0 1 692 3948 Homework 32 9 4631 14.0 Normal 0 false false false EN-US JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:Cambria; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin; mso-ansi-language:EN-US;} In my previous blog post, I discussed the enhanced performance and scalability delivered by extensions to the multi-threaded data nodes in MySQL Cluster 7.2. In this post, I’ll share best practices on the configuration of data nodes to achieve optimum performance on the latest generations of multi-core, multi-thread CPU designs. Configuring the Data Nodes The configuration of data node threads can be managed in two ways via the config.ini file: - Simply set MaxNoOfExecutionThreads to the appropriate number of threads to be run in the data node, based on the number of threads presented by the processors used in the host or VM. - Use the new ThreadConfig variable that enables users to configure both the number of each thread type to use and also which CPUs to bind them too. The flexible configuration afforded by the multi-threaded data node enhancements means that it is possible to optimise data nodes to use anything from a single CPU/thread up to a 48 CPU/thread server. Co-locating the MySQL Server with a single data node can fully utilize servers with 64 – 80 CPU/threads. It is also possible to co-locate multiple data nodes per server, but this is now only required for very large servers with 4+ CPU sockets dense multi-core processors. 24 Threads and Beyond! An example of how to make best use of a 24 CPU/thread server box is to configure the following: - 8 ldm threads - 4 tc threads - 3 recv threads - 3 send threads - 1 rep thread for asynchronous replication. Each of those threads should be bound to a CPU. It is possible to bind the main thread (schema management domain) and the IO threads to the same CPU in most installations. In the configuration above, we have bound threads to 20 different CPUs. We should also protect these 20 CPUs from interrupts by using the IRQBALANCE_BANNED_CPUS configuration variable in /etc/sysconfig/irqbalance and setting it to 0x0FFFFF. The reason for doing this is that MySQL Cluster generates a lot of interrupt and OS kernel processing, and so it is recommended to separate activity across CPUs to ensure conflicts with the MySQL Cluster threads are eliminated. When booting a Linux kernel it is also possible to provide an option isolcpus=0-19 in grub.conf. The result is that the Linux scheduler won't use these CPUs for any task. Only by using CPU affinity syscalls can a process be made to run on those CPUs. By using this approach, together with binding MySQL Cluster threads to specific CPUs and banning CPUs IRQ processing on these tasks, a very stable performance environment is created for a MySQL Cluster data node. On a 32 CPU/Thread server: - Increase the number of ldm threads to 12 - Increase tc threads to 6 - Provide 2 more CPUs for the OS and interrupts. - The number of send and receive threads should, in most cases, still be sufficient. On a 40 CPU/Thread server, increase ldm threads to 16, tc threads to 8 and increment send and receive threads to 4. On a 48 CPU/Thread server it is possible to optimize further by using: - 12 tc threads - 2 more CPUs for the OS and interrupts - Avoid using IO threads and main thread on same CPU - Add 1 more receive thread. Summary As both this and the previous post seek to demonstrate, the multi-threaded data node extensions not only serve to increase performance of MySQL Cluster, they also enable users to achieve significantly improved levels of utilization from current and future generations of massively multi-core, multi-thread processor designs. A big thanks to Mikael Ronstrom, Senior MySQL Architect at Oracle, for his work in developing these enhancements and best practices. You can download MySQL Cluster 7.2 today and try out all of these enhancements. The Getting Started guides are an invaluable aid to quickly building a Proof of Concept Don’t forget to check out the MySQL Cluster 7.2 New Features whitepaper to discover everything that is new in the latest GA release

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• memory and time intensive php task

  - by Goddard

  Sorry if this question has been asked before, but I couldn't find anything usable. I'm working on a project for a client and currently I have to loop through the users table which is about 3000 records and still growing. I have to do some calculations on a nightly basis which I am going to be using cron/php. The calculations script uses about 3.5mb of memory and takes about 1 second to run. When loading individual users my current php setup handles this fine, but if I try and loop through the user list my php script execution time runs out. I've read after doing some searching that I can make the page reload itself after each user calculation and just keep my previous place in the loop and this sounds like a good idea, but I wanted to hear some opinions from others that have handled similar situations and how you handled these types of tasks. Thanks.

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• New Oracle Cloud support in OEPE

  - by gstachni

  Oracle Enterprise Pack for Eclipse 12c (12.1.1.1.1) includes updated support for development with the Java Cloud Service. Users can now do iterative development against their Java Cloud Service instance in addition to testing against local and remote WebLogic Server installations. Some details of the cloud tools are below: Templates and wizards to create projects and server configurations for Oracle Java Cloud Service Develop applications to run and deploy to the cloud, including Oracle ADF. Check cloud server runtime and deployment logs in new log analyzers Test applications before deployment with integrated whitelist scans. Whitelist tools support as-you-type validation, project build validation, and on demand scans to highlight coding violations. Errors are reported in application source, the Problems view, and a new Whitelist violations view. Access the Oracle Public Cloud administrative consoles directly from within Eclipse.

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• Setting up a GUI-based libvirt VM

  - by LibertasMens

  I am attempting to create a virtual machine using libvirt that will have a GNOME GUI and remote accessibility. I have successfully set up the VM to run, but I am unable to access it remotely. The command issued to build the VM: sudo vmbuilder kvm ubuntu --suite=precise --flavour=generic --arch=amd64 --mirror=http://de.archive.ubuntu.com/ubuntu -o --libvirt=qemu:///system --part=/usr/xxxx/vmbuilder.partition --templates=/usr/xxxx/mytemplates --addpkg=nano --addpkg=unattended-upgrades --addpkg=acpid --firstboot=/usr/xxxx/boot.sh --cpus=2 --mem=4096--user=xxxx --name=xxxx --pass=xxxx --hostname=xxxx --bridge=br0 My intent is to have a virtual machine that my client can remotely access with a GUI.

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• Who makes laptops for Ubuntu?

  - by Tim Lytle

  I'm looking for a laptop and would like to avoid the whole 'is this [specific configuration of hardware] compatible with Ubuntu?' process by finding a laptop manufactured with Ubuntu in mind. I know of system76, but are there any other manufacturers making laptops built to run a standard build of Ubuntu? I'm not counting Dell, as - from my experience - their 'Ubuntu' laptops/netbooks require their build, and because of that have their own set of compatibility issues. UPDATE: And as mentioned in the comments, Dell is no longer selling systems with Ubuntu to consumers.

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• Is there an equivalent of RDP?

  - by detly

  The "Desktop Sharing" settings that come installed by default seem to use VNC. VNC is a bit of a bandwidth hog, can only work at the resolution of whatever screen is attached to the host, and mirrors every action on the host. (It also seems to work poorly with compositing, but maybe that's been fixed.) I know about X tunnelling, but that's annoying to use and doesn't always work properly (or, more accurately, some apps don't work properly). Is there any kind of protocol in between the two, similar to RDP used for Windows? Specifically, something that can run at a different resolution to the host screen and is a little lighter on the network? (Ideally, the more the protocol could have in common with RDP, the better.)

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