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• How do I change which audio jacks are used for input and output?

  - by yamaha1996

  I'm using a Realtek HD audio card built-in my motherboard. The Windows driver comes with a control panel that allows me to select which back panel jacks are used for what. So for example I can make both the blue jack and green jack for output and only the red one for mic-in. (Whereas by default, the blue jack is for line in, which I never need.) How can I do the same under Linux? If possible, please don't suggest something that involves PulseAudio or JACK; I'd like to do it the plain way, e.g. by editing ALSA configuration files, if possible. The way I understand it, my problem should have nothing to do with software servers redirecting streams, just instructing the driver to treat this jack as so and so because it's hardware supported. Thank you very much!

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• Bluetooth fix for Ubuntu 12.04, lenovo G580

  - by Sam Abraham

  Bluetooth not working, it shows turned on but manager indicated Bluetooth disabled. Uninstalled default manager and installed Blueman. The same with Blueman, clicking on connect to devices gets response 'adapters not found'. I've found many more people with the same problem. The fixes found in the archive don't work for me. I've tried a couple of things from the forum. I'm not familiar with computer hardware or software but have been using Ubuntu cause it saves me money, it's fairly easy to use and it does not tax my mid-range lap. Any help will be appreciated.

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• Gilda Garretón, a Java Developer and Parallelism Computing Researcher

  - by Yolande

  In a new interview titled “Gilda Garretón, a Java Developer and Parallelism Computing Research,” Garretón shares her first-hand experience developing with Java and Java 7 for very large-scale integration (VLSI) of computer-aided design (CAD). Garretón gives an insightful overview of how Java is contributing to the parallelism development and to the Electric VLSI Design Systems, an open source VLSI CAD application used as a research platform for new CAD algorithms as well as the research flow for hardware test chips.  Garretón considers that parallelism programming is hard and complex, yet important developments are taking place.  "With the addition of the concurrent package in Java SE 6 and the Fork/Join feature in Java SE 7, developers have a chance to rely more on existing frameworks and dedicate more time to the essence of their parallel algorithms." Read the full article here  

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• Chrome Apps Office Hours: Networking APIs

  Chrome Apps Office Hours: Networking APIs Ask and vote for questions at goo.gl Writing a web server in a web browser is a little meta, but it's one of the many new scenarios unlocked by the new APIs available in Chrome Apps! Join Paul Kinlan and Pete LePage as they explore the networking APIs available to Chrome Apps. They'll show you how you you can write your own web server, and connect to other devices via the network. While the web server in a browser may not be a common scenario, accessing the TCP and UDP stack is extremely powerful and will allow your apps to connect to other hardware or services like never before. From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Science & Technology

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• Reverse Search Images Easily with the TinEye Client for Windows

  - by Asian Angel

  Are you a frequent user of TinEye and would like to integrate it into your favorite Windows system? Then get ready to enjoy Context Menu and App Window goodness with the TinEye Client for Windows. After you have downloaded the zip file, unzip it and run the setup file inside. Once the installation process has finished you will be asked if you would like to launch TinEye Client immediately or not. If not then you can access it later using the new shortcut added to the Start Menu. We chose to let the program launch automatically…this is what the main window looks like. For our test we decided to access the client via the Context Menu using a picture of Doc Brown’s DeLorean in hover conversion mode. HTG Explains: Understanding Routers, Switches, and Network Hardware How to Use Offline Files in Windows to Cache Your Networked Files Offline How to See What Web Sites Your Computer is Secretly Connecting To

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• Secure Deployment of Oracle VM Server for SPARC - aktualisiert

  - by Stefan Hinker

  Vor einiger Zeit hatte ich ein Papier mit Empfehlungen fuer den sicheren Einsatz von LDoms veroeffentlicht.  In der Zwischenzeit hat sich so manche veraendert - eine Aktualisierung des Papiers wurde noetig.  Neben einigen kleineren Rechtschreibkorrekturen waren auch ettliche Links veraltet oder geandert.  Der Hauptgrund fuer eine Ueberarbeitung war jedoch das Aufkommen eines zweiten Betriebsmodels fuer LDoms.  Ein einigen wenigen kurzen Worten:  Insbesondere mit dem Erfolg der T4-4 kam es immer oefter vor, dass die Moeglichkeiten zur Hardware-Partitionierung, die diese Platform bietet, genutzt wurden.  Aehnlich wie bei den Dynamic System Domains werden dabei ganze PCIe Root-Komplexe an eine Domain vergeben.  Diese geaenderte Verwendung machte eine Behandlung in diesem Papier notwendig.  Die aktualisierte Version gibt es hier: Secure Deployment of Oracle VM Server for SPARCSecond Edition Ich hoffe, sie ist hilfreich!

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• Ubuntu Server 11.04 installs fine then gets stuck on USBHID

  - by SZetta

  ites! I have installed Server 11.04 many many times from this disc and they have always worked perfectly (installed and operated fine). I wanted to reinstall my server again on the same hardware so I threw the disc in and installed but once it finished installing the boot loader and ejected the disc, it decided to go unresponsive. I restarted it and it loaded in through the grub perfectly it seemed, but then it goes and says either that a ipv6 router is unavailable (even though I have it hardwired to my network) or it goes and says usbhid: USB HID core driver and goes unresponsive there. I am very confused as this never happened before from this install. I want to see if this is just me or what before I just go ahead and download the newest version of server. Any advice would be appreciated. Thanks

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• Triple-head on a Lenovo T520

  - by codeape

  Lenovo T520 with integrated Intel HD graphics + a NVidia card (Optimus) Ubuntu 11.10 on the computer. I would like to use the built-in screen plus two external screens. This PDF indicates that it is possible to connect up to four external monitors to the laptop. The information is Windows only. I was planning to disable the NVidia card, since I have read that Linux support for Optimus is not good. Questions: Has anyone set up three monitors on NVidia hardware? Has anyone set up three monitors using Intel HD 3000? Can I expect it to work out of the box, or are there tricks I need to be aware of?

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• The videocard driver killed Unity

  - by iUngi

  Hy, I just installed the ubuntu 11.04. After I restarted the PC I got a little notification that some drivers are missing, I click to activate the driver. So after the activation I can't use the unity. When in the preference page I click to the Ati catalyst control center I get the following error: There was a problem initializing Catalyst Control Center Linux edition. It could be caused by the following. No ATI graphics driver is installed, or the ATI driver is not functioning properly. Please install the ATI driver appropriate for you ATI hardware, or configure using aticonfig. My video card is ATI so I don't know what is the problem!?!

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• Can't replace MDM Display Manager with LightDM!

  - by Naveen

  Well, I installed MDM, and found it's buggy with my VGA hardware due to the following screen after rebooting: This screen repeats, even if I choose Yes or No As I have access to the console (by pressing ALT+F2) I tried, sudo dpkg-reconfigure lightdm which gave me the following screen, Even if I choose LightDM nothing happens at the next reboot. The first screen comes back! dpkg -l | grep -i mdm command results me following, ii mdm___________1.0.4-0~webupd8~precise_____Gnome Display Mnager ii mint-mdm-themes__1.0.5-0~webupd8~precise1_____Linux Mint MDM Themes (underscores are spaces) Please help... I need LightDM login screen back! Thanks!

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• Provisioning Videos

  - by Owen Allen

  There are a couple of new videos up on the Oracle Learning Youtube channel about Ops Center's provisioning capabilities. Simon Hayler does a walkthrough of a couple of different procedures. The first video shows you how to provision Oracle Solaris zones. It explains how to create an Oracle Solaris Zone profile, and then how to apply it (using a deployment plan) to a target system. The second video shows you how to provision an x86 server with Oracle Solaris. This uses a very similar process - you create a OS provisioning profile, then use a deployment plan to apply it to the target hardware. The documentation goes over OS provisioning and zone creation in the Feature Guide, if you're looking for additional information.

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• How to use IBM T42 laptop's built-in Bluetooth?

  - by B. Roland

  Hello! I have an IBM ThinkPad T42 laptop, and I have some troubles with built-in bluetooth, because in Hardware Drivers, there are no drivers for it, and in Bluetooth settings, it shows, that it has no BT devices. If I plug in an USB Bluetooth adapter, I can use easily Wammu for my mobile backup. I have no setting in BIOS, to enable, or disable it(if disable wireless refers to Wi-fi, but it is enabled too). Some outputs, what the community asked from me, in the IRC: $ sudo hcitool dev Devices: $ $ cat /proc/acpi/ibm/bluetooth No file or dir $ $ sudo modprobe bluetooth $ $ rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no $ But they couldn't solve my problems. What can I do?

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• Oracle OpenWorld Healthcare Integration Session Highlights Challenges & Solutions

  - by Bruce Tierney

  In today’s session co-presented by Steve Schenks, Integration Architect from Ascension Health and Oracle’s Sundar Shenbagam and Suresh Sharma (apparently your initials must be SS to present during this session), interesting insights in many different areas including Steve’s descriptions of the challenges with their previous environment: Disparate hardware and software is an issue common across healthcare and most other industries…Larry Ellison spoke on this topic during Sundays’ keynote address. In the last part of session, Suresh is planning to go over some of the best practices and lesson learned to implement successful healthcare applications and will discuss the different options to model Sequencing (FIF0) use cases (one of most common use cases in the provider market). The session was “Implementing Successful Healthcare Applications with Oracle SOA Suite” – Session # CON8546. For more information about this session, please contact Senior Principal Product Manager Suresh Sharma

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• Oracle OpenWorld Healthcare Integration Session Highlights Challenges & Solutions

  - by Nitesh Jain

  In today’s session co-presented by Steve Schenks, Integration Architect from Ascension Health and Oracle’s Sundar Shenbagam and Suresh Sharma (apparently your initials must be SS to present during this session), interesting insights in many different areas including Steve’s descriptions of the challenges with their previous environment: Disparate hardware and software is an issue common across healthcare and most other industries…Larry Ellison spoke on this topic during Sundays’ keynote address.  In the last part of session, Suresh is planning to go over some of the best practices and lesson learned to implement successful healthcare applications and will discuss the different options to model Sequencing (FIF0) use cases (one of most common use cases in the provider market). The session was “Implementing Successful Healthcare Applications with Oracle SOA Suite” – Session # CON8546. For more information about this session, please contact Senior Principal Product Manager Suresh Sharma Ref : https://blogs.oracle.com/SOA/entry/oracle_openworld_healthcare_integration_session

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• Total Cloud Control keeps getting better ! Oracle Launch Webcast : Total Cloud Control for Systems

  - by Anand Akela

  Total Cloud Control Keeps Getting Better Join Oracle Vice President of Systems Management Steve Wilson and a panel of Oracle executives to find out how your enterprise cloud can achieve 10x improved performance and 12x operational agility. Only Oracle Enterprise Manager Ops Center 12c allows you to: Accelerate mission-critical cloud deployment Unleash the power of Solaris 11, the first cloud OS Simplify Oracle engineered systems management You’ll also get a chance to have your questions answered by Oracle product experts and dive deeper into the technology by viewing our demos that trace the steps companies like yours take as they transition to a private cloud environment. Featured Speaker With a special announcement by: Steve Wilson Vice President, Systems Management, Oracle John Fowler Executive Vice President, Systems, Oracle Agenda 9:00 a.m. PT Keynote: Total Cloud Control for Systems 9:45 a.m. PT Panel Discussion with Oracle Hardware, Software, and Support Executives 10:15 a.m. PT Demo Series: A Step-by-Step Journey to Enterprise Clouds Stay connected with  Oracle Enterprise Manager   :  Twitter | Facebook | YouTube | Linkedin | Newsletter

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• Cant get lm-sensors to load ATI Radeon temp or fan

  - by woody

  New to Linux and having minor issues :/ . I followed this guide initially but did not recieve the proper output and did not show my ATI Radeon HD 5000 temp or fan speed. Then used this guide, same problems exhibited. No issues installing and no errors. I think its not reading i2c for some reason. The proprietary driver is installed and functioning correctly according fglrxinfo. I can use aticonfig commands and view both temp and fan. Any ideas on how to get it working under 'sensors'? When i run 'sudo sensors-detect' this is my ouput # sensors-detect revision 5984 (2011-07-10 21:22:53 +0200) # System: LENOVO IdeaPad Y560 (laptop) # Board: Lenovo KL3 This program will help you determine which kernel modules you need to load to use lm_sensors most effectively. It is generally safe and recommended to accept the default answers to all questions, unless you know what you're doing. Some south bridges, CPUs or memory controllers contain embedded sensors. Do you want to scan for them? This is totally safe. (YES/no): y Silicon Integrated Systems SIS5595... No VIA VT82C686 Integrated Sensors... No VIA VT8231 Integrated Sensors... No AMD K8 thermal sensors... No AMD Family 10h thermal sensors... No AMD Family 11h thermal sensors... No AMD Family 12h and 14h thermal sensors... No AMD Family 15h thermal sensors... No AMD Family 15h power sensors... No Intel digital thermal sensor... Success! (driver `coretemp') Intel AMB FB-DIMM thermal sensor... No VIA C7 thermal sensor... No VIA Nano thermal sensor... No Some Super I/O chips contain embedded sensors. We have to write to standard I/O ports to probe them. This is usually safe. Do you want to scan for Super I/O sensors? (YES/no): y Probing for Super-I/O at 0x2e/0x2f Trying family `National Semiconductor/ITE'... Yes Found unknown chip with ID 0x8502 Probing for Super-I/O at 0x4e/0x4f Trying family `National Semiconductor/ITE'... No Trying family `SMSC'... No Trying family `VIA/Winbond/Nuvoton/Fintek'... No Trying family `ITE'... No Some hardware monitoring chips are accessible through the ISA I/O ports. We have to write to arbitrary I/O ports to probe them. This is usually safe though. Yes, you do have ISA I/O ports even if you do not have any ISA slots! Do you want to scan the ISA I/O ports? (YES/no): y Probing for `National Semiconductor LM78' at 0x290... No Probing for `National Semiconductor LM79' at 0x290... No Probing for `Winbond W83781D' at 0x290... No Probing for `Winbond W83782D' at 0x290... No Lastly, we can probe the I2C/SMBus adapters for connected hardware monitoring devices. This is the most risky part, and while it works reasonably well on most systems, it has been reported to cause trouble on some systems. Do you want to probe the I2C/SMBus adapters now? (YES/no): y Using driver `i2c-i801' for device 0000:00:1f.3: Intel 3400/5 Series (PCH) Now follows a summary of the probes I have just done. Just press ENTER to continue: Driver `coretemp': * Chip `Intel digital thermal sensor' (confidence: 9) To load everything that is needed, add this to /etc/modules: #----cut here---- # Chip drivers coretemp #----cut here---- If you have some drivers built into your kernel, the list above will contain too many modules. Skip the appropriate ones! Do you want to add these lines automatically to /etc/modules? (yes/NO) My output for 'sensors' is: acpitz-virtual-0 Adapter: Virtual device temp1: +58.0°C (crit = +100.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +56.0°C (high = +84.0°C, crit = +100.0°C) Core 1: +57.0°C (high = +84.0°C, crit = +100.0°C) Core 2: +58.0°C (high = +84.0°C, crit = +100.0°C) Core 3: +57.0°C (high = +84.0°C, crit = +100.0°C) and my '/etc/modules' is: # /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines beginning with "#" are ignored. lp rtc # Generated by sensors-detect on Fri Nov 30 23:24:31 2012 # Chip drivers coretemp

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• Oracle Database Appliance Now Certified by SAP

  - by Bandari Huang

  All SAP products based on SAP NetWeaver 7.x that are also certified for Oracle Database 11g Release 2 (single node or RAC) can now be used with the Oracle Database Appliance. RAC One Node is NOT supported. Only Three-Tier SAP Installations. Only the Oracle database can run on the Oracle Database Appliance.  No SAP instance can be deployed on the Oracle Database Appliance. SAP instances have to run on different middle-tier machines of any hardware architecture and operating system. Central Services (ASCS and/or SCS) can be configured to run on the Oracle Database Appliance for Unicode installations of SAP. SAP BR*Tools support is now available for the Oracle Database Appliance. For more information about SAP on ODA, please refer: Using SAP NetWeaver with the Oracle Database Appliance New Nov2012 Note 1760737 - SAP Software and Oracle Database Appliance (ODA) Note 1785353 - ODA 11.2.0: Patches for 11.2.0.3  

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• DVI+HDMI out, at startup only HDMI is available

  - by Alasjo

  I have my computer next to my hdtv. The main screen is connected via DVI while the tv is connected via HDMI. If I start the computer without the HDMI plugged in, everything is ok: I see the login screen and sound is output through analog out. But if the HDMI is plugged in before I start the computer, only the tv gets an image (the login screen), the main screen is black or at some times purple, but even after login the main screen is black. Also sound is still output through analog out. Not sure whether it's a hw issue, or an Ubuntu issue, or a combined hardware/Ubuntu compatibility issue (Sandy Bridge). This is my setup: Ubuntu 11.10 Oneiric Ocelot (64bit) ASUS P8H67-M LE Intel Core i3-2100 I don't have any custom video settings, my main screen is recognized properly when HDMI is not plugged in at startup. Cheers.

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• Laptop Screen does not turn on after sleep

  - by Gage

  I recently put Ubuntu 10.10 on my laptop and after fixing the wireless problem I am only stuck on my screen turning back on after sleep. I have had this problem since Ubuntu 7. I tried using Ubuntu way back then and had a whole bunch of issues with the sleep and the wireless(Broadcom 4311). Anyways, I have an ATI Radeon express 200M graphics card (old laptop). When I go to Hardware drivers it doesn't give me any options to use the closed source drivers. Any suggestions on what I should do? I am going to try what is suggested in this thread but I am at work right now. Laptop does not wake up after sleep Thanks in advance for any help.

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• DirectCompute Lectures

  - by Daniel Moth

  Previously I shared resources to get you started with DirectCompute, for taking advantage of GPGPUs in an a way that doesn't tie you to a hardware vendor (e.g. nvidia, amd). I just stumbled upon and had to share a lecture series on channel9 on DirectCompute! Here are direct links to the episodes that are up there now: DirectCompute Expert Roundtable Discussion DirectCompute Lecture Series 101- Introduction to DirectCompute DirectCompute Lecture Series 110- Memory Patterns DirectCompute Lecture Series 120- Basics of DirectCompute Application Development DirectCompute Lecture Series 210- GPU Optimizations and Performance DirectCompute Lecture Series 230- GPU Accelerated Physics DirectCompute Lecture Series 250- Integration with the Graphics Pipeline Having watched these I recommend them all, but if you only want to watch a few, I suggest #2, #3, #4 and #5. Also, you should download the "WMV (High)" so you can see the code clearly and be able to Ctrl+Shift+G for fast playback… TIP: To subscribe to channel9 GPU content, use this RSS feed. Comments about this post welcome at the original blog.

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• Searching for the Perfect Developer&rsquo;s Laptop.

  - by mbcrump

  I have been in the market for a new computer for several months. I set out with a budget of around $1200. I knew up front that the machine would be used for developing applications and maybe some light gaming. I kept switching between buying a laptop or a desktop but the laptop won because: With a Laptop, I can carry it everywhere and with a desktop I can’t. I searched for about 2 weeks and narrowed it down to a list of must-have’s : i7 Processor (I wasn’t going to settle for an i5 or AMD. I wanted a true Quad-core machine, not 2 dual-core fused together). 15.6” monitor SSD 128GB or Larger. – It’s almost 2011 and I don’t want an old standard HDD in this machine. 8GB of DDR3 Ram. – The more the better, right? 1GB Video Card (Prefer NVidia) – I might want to play games with this. HDMI Port – Almost a standard on new Machines. This would be used when I am on the road and want to stream Netflix to the HDTV in the Hotel room. Webcam Built-in – This would be to video chat with the wife and kids if I am on the road. 6-Cell Battery. – I’ve read that an i7 in a laptop really kills the battery. A 6-cell or 9-cell is even better. That is a pretty long list for a budget of around $1200. I searched around the internet and could not buy this machine prebuilt for under $1200. That was even with coupons and my company’s 10% Dell discount. The only way that I would get a machine like this was to buy a prebuilt and replace parts. I chose the  Lenovo Y560 on Newegg to start as my base. Below is a top-down picture of it.   Part 1: The Hardware The Specs for this machine: Color :  GrayOperating System : Windows 7 Home Premium 64-bitCPU Type : Intel Core i7-740QM(1.73GHz)Screen : 15.6" WXGAMemory Size : 4GB DDR3Hard Disk : 500GBOptical Drive : DVD±R/RWGraphics Card : ATI Mobility Radeon HD 5730Video Memory : 1GBCommunication : Gigabit LAN and WLANCard slot : 1 x Express Card/34Battery Life : Up to 3.5 hoursDimensions : 15.20" x 10.00" x 0.80" - 1.30"Weight : 5.95 lbs. This computer met most of the requirements above except that it didn’t come with an SSD or have 8GB of DDR3 Memory. So, I needed to start shopping except this time for an SSD. I asked around on twitter and other hardware forums and everyone pointed me to the Crucial C300 SSD. After checking prices of the drive, it was going to cost an extra $275 bucks and I was going from a spacious 500GB drive to 128GB. After watching some of the SSD videos on YouTube I started feeling better. Below is a pic of the Crucial C300 SSD. The second thing that I needed to upgrade was the RAM. It came with 4GB of DDR3 RAM, but it was slow. I decided to buy the Crucial 8GB (4GB x 2) Kit from Newegg. This RAM cost an extra $120 and had a CAS Latency of 7. In the end this machine delivered everything that I wanted and it cost around $1300. You are probably saying, well your budget was $1200. I have spare parts that I’m planning on selling on eBay or Anandtech.  =) If you are interested then shoot me an email and I will give you a great deal mbcrump[at]gmail[dot]com. 500GB Laptop 7200RPM HDD 4GB of DDR3 RAM (2GB x 2) faceVision HD 720p Camera – Unopened In the end my Windows Experience Rating of the SSD was 7.7 and the CPU 7.1. The max that you can get is a 7.9. Part 2: The Software I’m very lucky that I get a lot of software for free. When choosing a laptop, the OS really doesn’t matter because I would never keep the bloatware pre-installed or Windows 7 Home Premium on my main development machine. Matter of fact, as soon as I got the laptop, I immediately took out the old HDD without booting into it. After I got the SSD into the machine, I installed Windows 7 Ultimate 64-Bit. The BIOS was out of date, so I updated that to the latest version and started downloading drivers off of Lenovo’s site. I had to download the Wireless Networking Drivers to a USB-Key before I could get my machine on my wireless network. I also discovered that if the date on your computer is off then you cannot join the Windows 7 Homegroup until you fix it. I’m aware that most people like peeking into what programs other software developers use and I went ahead and listed my “essentials” of a fresh build. I am a big Silverlight guy, so naturally some of the software listed below is specific to Silverlight. You should also check out my master list of Tools and Utilities for the .NET Developer. See a killer app that I’m missing? Feel free to leave it in the comments below. My Software Essential List. CPU-Z Dropbox Everything Search Tool Expression Encoder Update Expression Studio 4 Ultimate Foxit Reader Google Chrome Infragistics NetAdvantage Ultimate Edition Keepass Microsoft Office Professional Plus 2010 Microsoft Security Essentials 2  Mindscape Silverlight Elements Notepad 2 (with shell extension) Precode Code Snippet Manager RealVNC Reflector ReSharper v5.1.1753.4 Silverlight 4 Toolkit Silverlight Spy Snagit 10 SyncFusion Reporting Controls for Silverlight Telerik Silverlight RadControls TweetDeck Virtual Clone Drive Visual Studio 2010 Feature Pack 2 Visual Studio 2010 Ultimate VS KB2403277 Update to get Feature Pack 2 to work. Windows 7 Ultimate 64-Bit Windows Live Essentials 2011 Windows Live Writer Backup. Windows Phone Development Tools That is pretty much it, I have a new laptop and am happy with the purchase. If you have any questions then feel free to leave a comment below.  Subscribe to my feed

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• Big Data – Buzz Words: What is Hadoop – Day 6 of 21

  - by Pinal Dave

  In yesterday’s blog post we learned what is NoSQL. In this article we will take a quick look at one of the four most important buzz words which goes around Big Data – Hadoop. What is Hadoop? Apache Hadoop is an open-source, free and Java based software framework offers a powerful distributed platform to store and manage Big Data. It is licensed under an Apache V2 license. It runs applications on large clusters of commodity hardware and it processes thousands of terabytes of data on thousands of the nodes. Hadoop is inspired from Google’s MapReduce and Google File System (GFS) papers. The major advantage of Hadoop framework is that it provides reliability and high availability. What are the core components of Hadoop? There are two major components of the Hadoop framework and both fo them does two of the important task for it. Hadoop MapReduce is the method to split a larger data problem into smaller chunk and distribute it to many different commodity servers. Each server have their own set of resources and they have processed them locally. Once the commodity server has processed the data they send it back collectively to main server. This is effectively a process where we process large data effectively and efficiently. (We will understand this in tomorrow’s blog post). Hadoop Distributed File System (HDFS) is a virtual file system. There is a big difference between any other file system and Hadoop. When we move a file on HDFS, it is automatically split into many small pieces. These small chunks of the file are replicated and stored on other servers (usually 3) for the fault tolerance or high availability. (We will understand this in the day after tomorrow’s blog post). Besides above two core components Hadoop project also contains following modules as well. Hadoop Common: Common utilities for the other Hadoop modules Hadoop Yarn: A framework for job scheduling and cluster resource management There are a few other projects (like Pig, Hive) related to above Hadoop as well which we will gradually explore in later blog posts. A Multi-node Hadoop Cluster Architecture Now let us quickly see the architecture of the a multi-node Hadoop cluster. A small Hadoop cluster includes a single master node and multiple worker or slave node. As discussed earlier, the entire cluster contains two layers. One of the layer of MapReduce Layer and another is of HDFC Layer. Each of these layer have its own relevant component. The master node consists of a JobTracker, TaskTracker, NameNode and DataNode. A slave or worker node consists of a DataNode and TaskTracker. It is also possible that slave node or worker node is only data or compute node. The matter of the fact that is the key feature of the Hadoop. In this introductory blog post we will stop here while describing the architecture of Hadoop. In a future blog post of this 31 day series we will explore various components of Hadoop Architecture in Detail. Why Use Hadoop? There are many advantages of using Hadoop. Let me quickly list them over here: Robust and Scalable – We can add new nodes as needed as well modify them. Affordable and Cost Effective – We do not need any special hardware for running Hadoop. We can just use commodity server. Adaptive and Flexible – Hadoop is built keeping in mind that it will handle structured and unstructured data. Highly Available and Fault Tolerant – When a node fails, the Hadoop framework automatically fails over to another node. Why Hadoop is named as Hadoop? In year 2005 Hadoop was created by Doug Cutting and Mike Cafarella while working at Yahoo. Doug Cutting named Hadoop after his son’s toy elephant. Tomorrow In tomorrow’s blog post we will discuss Buzz Word – MapReduce. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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• mp3 codecs cannot be installed no software is actually installing

  - by joseph michore

  My Rythm box player cannot play mp3 and iget this error "GStreamer extra plugins cannot be installed on your computer type (i386) Either the application requires special hardware features or the vendor decided to not support your computer type" if i go to software center i get this error The repository may no longer be available or could not be contacted because of network problems. If available an older version of the failed index will be used. Otherwise the repository will be ignored. Check your network connection and ensure the repository address in the preferences is correct. in shot i have tried to dowload deb softs i still get the error above .so i have downloaded tar.gz and i have installed using terminal but i get another error of gcc c++ insanity check failure! i ask my self what i am supposed to do nothing is working nothing at all yet i have to run my bussiness help urgently before i collapse and choose to die!

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• SQL Server Capacity Planner

  Apart from the capacity planner tool for System Center and SharePoint Server, I was looking for a tool which can help me to estimate the capacity of SQL Server. I found an article on Microsoft.com for SQL Server 2000 sizing but unfortunately the links are obseleted and dead: Dell PowerMatch Server Sizing Software Compaq Active Answer Resources Finally I found an article that is "close" to my interest: Hardware and Software Requirements for Installing SQL Server 2008 If any of you...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• No rear audio when front jack is connected

  - by Shanoop

  I have Ubuntu 14.04 64bit dual booted. When I connect something on front audio jack then rear audio is not working. I have tried changing analolog-output-headphones.conf file. After changing that alsamixer showing that both centre and surround not muted with full volum. Unfortunately no audio. aplay -l **** List of PLAYBACK Hardware Devices **** card 0: SB [HDA ATI SB], device 0: ALC887-VD Analog [ALC887-VD Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: SB [HDA ATI SB], device 1: ALC887-VD Digital [ALC887-VD Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0

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