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• CodePlex Daily Summary for Monday, October 01, 2012

  CodePlex Daily Summary for Monday, October 01, 2012Popular ReleasesD3 Loot Tracker: 1.4.1: This version will automatically save a recording session on application exit if the user didn't stop the current session.CRM 2011 Visual Ribbon Editor: Visual Ribbon Editor (1.2.1001.1): Visual Ribbon Editor 1.2.1001.1 What's New: Ability to hide currently selected tab Password in the connection file is now being encrypted Esc and Enter keyboard keys are now supported in all dialogs Extended width of Prefix and Id fields in New Button and New Group dialogs Minor UI enchancements for Hide Button button Minor UI enchancements for View XML button and dialog File/assembly versioning for executable file Notes: Existing plain-text password will be automatically encrypt...Untangler: Untangler: First version of Untangler application available now.SubExtractor: Release 1029: Feature: Added option to make i and ¡ characters movie-specific for improved OCR on Spanish subs (Special Characters tab in Options) Feature: Allow switch to Word Spacing dialog directly from Spell Check dialog Fix: Added more default word spacings for accented characters Fix: Changed Word Spacing dialog to show all OCR'd characters in current sub Fix: Removed application focus grab during OCR Fix: Tightened HD subs fuzzy logic to reduce false matches in small characters Fix: Improved Arrow k...MCEBuddy 2.x: MCEBuddy 2.2.18: Reccomended download Changelog for 2.2.18 (32bit and 64bit) 1. Added support for checking if Showanalyzer has hung and cancelling it 2. New version of comskip, 0.81.48 3. Speeding up comskip 4. Fixed a build bug in 64bit 2.2.17 5. Added a new comkip.ini, better commercial detection for international channels and less aggressive. Old one has been retained as comskip_old.ini 6. Added support for Audio Offset on Conversion Task page in GUI (this overrides the profiles AudioDelay when specified)Mugen Injection: Mugen Injection 3.0: Added a generic version of the fluent syntax. Big changes in fluent-syntax. Added support to resolve a parameters: - Factory: AnyCustomFunc{T}, AnyCustomFunc{IEnumerable<IInjectionParameters>,T}, AnyCustomFunc{IDictionary<string, object>,T}, AnyCustomFunc{IEnumerable<IInjectionParameters>,IDictionary<string, object>,T} - Lazy: AnyCustomLazy<T> - Binding metadata: ISetting Change binding builders, now you can configure them through the string settings. Increase performance. F...Aggravation: Version 1.0: This version 1.0 release is pretty stable. You need the Silverlight 4 runtime, developer tools, and Experssion Blend 4 installed.Tube++: Tube++ 4.0.0.43: Fix parser for downloading and add new default slate gray styleReadable Passphrase Generator: KeePass Plugin 0.7.1: See the KeePass Plugin Step By Step Guide for instructions on how to install the plugin. Changes Built against KeePass 2.20Windows 8 Toolkit - Charts and More: Beta 1.0: The First Compiled Version of my LibraryCatchThatException: Release 1.0: This is the first relase for CatchThatException library at 29-9-2012CardPlay: a Solitaire Framework for .Net: 0.3.0: Added 5 games: Blockade, Chessboard, Colorado, Sly Fox, TwentyUltraFluid Modeling Suite: Beta 1: This release is experimental but contains a lot of features like: - xml serialization - multiple selection - clipboard copy/cut/paste on context menu There is the debug and the release (recommanded default) versions.PDF.NET: PDF.NET.Ver4.5-OpenSourceCode: PDF.NET Ver4.5 ????，????Web??????。 PDF.NET Ver4.5 Open Source Code,include a sample Web application project.Visual Studio Icon Patcher: Version 1.5.2: This version contains no new images from v1.5.1 Contains the following improvements: Better support for detecting the installed languages The extract & inject commands won’t run if Visual Studio is running You may now run in extract or inject mode The p/invoke code was cleaned up based on Code Analysis recommendations When a p/invoke method fails the Win32 error message is now displayed Error messages use red text Status messages use green textZXing.Net: ZXing.Net 0.9.0.0: On the way to a release 1.0 the API should be stable now with this version. sync with rev. 2393 of the java version improved api better Unity support Windows RT binaries Windows CE binaries new Windows Service demo new WPF demo WindowsCE Hotfix: Fixes an error with ISO8859-1 encoding and scannning of QR-Codes. The hotfix is only needed for the WindowsCE platform.C.B.R. : Comic Book Reader: CBR 0.7: Synthesis since 0.6 : ePUB : Complete refactoring Add a new dedicated feed viewer for opds stream PDF conversion : improved with image merge Make all backstage panel scrollable Integrate the new AvalonDock 2 library. Support multi-document. Library explorer and Table of content are now toolboxes Designer for dynamic books is now mvvm and much better New BrowserForControl Customized xps viewer to suppress toolbars and bind it to cbr commands Add quick start manual and button ...sosoft: sosoft source: sosoft source include alarm clockRawr: Rawr 5.0.0: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...Coevery - Free CRM: Coevery 1.0.0.26: The zh-CN issue has been solved. We also add a project management module.New ProjectsAmazonGlacierGUI - GUI Client for Amazon Glacier | WPF: a GUI client for amazon glacier , Written in .NET 4, C#,WPF,MVVM & RavenDB for storageAthene: UML editor.Basic Helpdesk Application: Develop a simple application to be used in a network environment to aid support staff while working remotely with users to resolve problems in their local PC.CAPTCHA Solver: CSolver, is a CAPTCHA Solver for Simple CAPTCHAs.ComicExt: ComicExt Works with CBZ files decompress them into a folder of the same name and convert them into zip files and vice versa from a single folder.Copy Your Table Storage: Tool to permit copy table storage dotCMS: it is a content management system base on BlogEngine.NET and Ext.NETihongma??: ?????????????????????????，????????????????、??????，?????????????????????????????，??????????????????????。 ??????????????，??????；???????????????，???????Liam F: Basic mathematical functions implemented using AVX/AVX2MVC Solution: MVC Solution, including many mvc best practicesopengltest: opengl testsample project: Testing...Sériethèque: A small tvshow organizer with viewed option, link to addict7ed.com, rename file etc ...SHOIC (SUPER HIGH ORBIT ION CANION): SHOIC (Super Hight Orbit Ion Canion) es una aplicación derivada de LOIC (Low Orbit Ion Canion)SignalRServerTry: signal r trySilverlight Datagrid Plus: Silverlight Datagrid plus adds basic features to the Silverlight toolkit datagrid such as grouping, filtering, new record and formatting of the datagrid.Sitecore Modules: This is a home for all the Sitecore Shared Source modules distributed by 5 Limes. Over time we expect this solution to contain several projects.Spiritual Chanting Utility: A quick media loop utilitySQL Web Studio Pad: A Simple Web Based SQL Management IDE for managing Database objectsStockmarket Simulation: Stockmarket Simulationtest_proj: ok testTISSEAN.NET: This project is based on: TISEAN 3.0.1 Nonlinear Time Series Analysis Rainer Hegger,Holger Kantz, Thomas Schreiber With major contributions by Eckehard OlbrichUntangler: Class hierarchy viewer for .Net assemblyValarmathi Hospital: Patient management.Windows 8 App For SharePoint Online: Windows 8 app to SharePoint 2013 OnlineWPF Anti-DataBinding Anti-DataTemplate Extensions: WPF Anti-DataBinding Anti-DataTemplate Extensions offers a pure C# code-behind (no XAML) approach to working with WPF controls, starting with the WPF ListBox.Yandex Positions Parser: ?????? ??????? ????? ? ?????? ??????? ?? ???????? ???????? ??????.YunCMS: A simple CMS for build protal site.

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• Interpolate air drag for my game?

  - by Valentin Krummenacher

  So I have a little game which works with small steps, however those steps vary in time, so for example I sometimes have 10 Steps/second and then I have 20 Steps/second. This changes automatically depending on how many steps the user's computer can take. To avoid inaccurate positioning of the game's player object I use y=v0*dt+g*dt^2/2 to determine my objects y-position, where dt is the time since the last step, v0 is the velocity of my object in the beginning of my step and g is the gravity. To calculate the velocity in the end of a step I use v=v0+g*dt what also gives me correct results, independent of whether I use 2 steps with a dt of for example 20ms or one step with a dt of 40ms. Now I would like to introduce air drag. For simplicity's sake I use a=k*v^2 where a is the air drag's acceleration (I am aware that it would usually result in a force, but since I assume 1kg for my object's mass the force is the same as the resulting acceleration), k is a constant (in this case I'm using 0.001) and v is the speed. Now in an infinitely small time interval a is k multiplied by the velocity in this small time interval powered by 2. The problem is that v in the next time interval would depend on the drag of the last which again depends on the v of the last interval and so on... In other words: If I use a=k*v^2 I get different results for my position/velocity when I use 2 steps of 20ms than when I use one step of 40ms. I used to have this problem for my position too, but adding +g*dt^2/2 to the formula for my position fixed the problem since it takes into account that the position depends on the velocity which changes slightly in every infinitely small time interval. Does something like that exist for air drag too? And no, I dont mean anything like Adding air drag to a golf ball trajectory equation or similar, for that kind of method only gives correct results when all my steps are the same. (I hope you can understand my intermediate english, it's not my main language so I would like to say sorry for all the silly mistakes I might have made in my question)

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• Installing SharePoint 2010 and PowerPivot for SharePoint on Windows 7

  - by smisner

  Many people like me want (or need) to do their business intelligence development work on a laptop. As someone who frequently speaks at various events or teaches classes on all subjects related to the Microsoft business intelligence stack, I need a way to run multiple server products on my laptop with reasonable performance. Once upon a time, that requirement meant only that I had to load the current version of SQL Server and the client tools of choice. In today's post, I'll review my latest experience with trying to make the newly released Microsoft BI products work with a Windows 7 operating system. The entrance of Microsoft Office SharePoint Server 2007 into the BI stack complicated matters and I started using Virtual Server to establish a "suitable" environment. As part of the team that delivered a lot of education as part of the Yukon pre-launch activities (that would be SQL Server 2005 for the uninitiated), I was working with four - yes, four - virtual servers. That was a pretty brutal workload for a 2GB laptop, which worked if I was very, very careful. It could also be a finicky and unreliable configuration as I learned to my dismay at one TechEd session several years ago when I had to reboot a very carefully cached set of servers just minutes before my session started. Although it worked, it came back to life very, very slowly much to the displeasure of the audience. They couldn't possibly have been less pleased than me. At that moment, I resolved to get the beefiest environment I could afford and consolidate to a single virtual server. Enter the 4GB 64-bit laptop to preserve my sanity and my livelihood. Likewise, for SQL Server 2008, I managed to keep everything within a single virtual server and I could function reasonably well with this approach. Now we have SQL Server 2008 R2 plus Office SharePoint Server 2010. That means a 64-bit operating system. Period. That means no more Virtual Server. That means I must use Hyper-V or another alternative. I've heard alternatives exist, but my few dabbles in this area did not yield positive results. It might have been just me having issues rather than any failure of those technologies to adequately support the requirements. My first run at working with the new BI stack configuration was to set up a 64-bit 4GB laptop with a dual-boot to run Windows Server 2008 R2 with Hyper-V. However, I was generally not happy with running Windows Server 2008 R2 on my laptop. For one, I couldn't put it into sleep mode, which is helpful if I want to prepare for a presentation beforehand and then walk to the podium without the need to hold my laptop in its open state along the way (my strategy at the TechEd session long, long ago). Secondly, it was finicky with projectors. I had issues from time to time and while I always eventually got it to work, I didn't appreciate those nerve-wracking moments wondering whether this would be the time that it wouldn't work. Somewhere along the way, I learned that it was possible to load SharePoint 2010 in a Windows 7 which piqued my interest. I had just acquired a new laptop running Windows 7 64-bit, and thought surely running the BI stack natively on my laptop must be better than running Hyper-V. (I have not tried booting to Hyper-V VHD yet, but that's on my list of things to try so the jury of one is still out on this approach.) Recently, I had to build up a server with the RTM versions of SQL Server 2008 R2 and Sharepoint Server 2010 and decided to follow suit on my Windows 7 Ultimate 64-bit laptop. The process is slightly different, but I'm happy to report that it IS possible, although I had some fits and starts along the way. DISCLAIMER: These products are NOT intended to be run in production mode on the Windows 7 operating system. The configuration described in this post is strictly for development or learning purposes and not supported by Microsoft. If you have trouble, you will NOT get help from them. I might be able to help, but I provide no guarantees of my ability or availablity to help. I won't provide the step-by-step instructions in this post as there are other resources that provide these details, but I will provide an overview of my approach, point you to the relevant resources, describe some of the problems I encountered, and explain how I addressed those problems to achieve my desired goal. Because my goal was not simply to set up SharePoint Server 2010 on my laptop, but specifically PowerPivot for SharePoint, I started out by referring to the installation instructions at the PowerPiovt-Info site, but mainly to confirm that I was performing steps in the proper sequence. I didn't perform the steps in Part 1 because those steps are applicable only to a server operating system which I am not running on my laptop. Then, the instructions in Part 2, won't work exactly as written for the same reason. Instead, I followed the instructions on MSDN, Setting Up the Development Environment for SharePoint 2010 on Windows Vista, Windows 7, and Windows Server 2008. In general, I found the following differences in installation steps from the steps at PowerPivot-Info: You must copy the SharePoint installation media to the local drive so that you can edit the config.xml to allow installation on a Windows client. You also have to manually install the prerequisites. The instructions provides links to each item that you must manually install and provides a command-line instruction to execute which enables required Windows features. I will digress for a moment to save you some grief in the sequence of steps to perform. I discovered later that a missing step in the MSDN instructions is to install the November CTP Reporting Services add-in for SharePoint. When I went to test my SharePoint site (I believe I tested after I had a successful PowerPivot installation), I ran into the following error: Could not load file or assembly 'RSSharePointSoapProxy, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified. I was rather surprised that Reporting Services was required. Then I found an article by Alan le Marquand, Working Together: SQL Server 2008 R2 Reporting Services Integration in SharePoint 2010,that instructed readers to install the November add-in. My first reaction was, "Really?!?" But I confirmed it in another TechNet article on hardware and software requirements for SharePoint Server 2010. It doesn't refer explicitly to the November CTP but following the link took me there. (Interestingly, I retested today and there's no longer any reference to the November CTP. Here's the link to download the latest and greatest Reporting Services Add-in for SharePoint Technologies 2010.) You don't need to download the add-in anymore if you're doing a regular server-based installation of SharePoint because it installs as part of the prerequisites automatically. When it was time to start the installation of SharePoint, I deviated from the MSDN instructions and from the PowerPivot-Info instructions: On the Choose the installation you want page of the installation wizard, I chose Server Farm. On the Server Type page, I chose Complete. At the end of the installation, I did not run the configuration wizard. Returning to the PowerPivot-Info instructions, I tried to follow the instructions in Part 3 which describe installing SQL Server 2008 R2 with the PowerPivot option. These instructions tell you to choose the New Server option on the Setup Role page where you add PowerPivot for SharePoint. However, I ran into problems with this approach and got installation errors at the end. It wasn't until much later as I was investigating an error that I encountered Dave Wickert's post that installing PowerPivot for SharePoint on Windows 7 is unsupported. Uh oh. But he did want to hear about it if anyone succeeded, so I decided to take the plunge. Perseverance paid off, and I can happily inform Dave that it does work so far. I haven't tested absolutely everything with PowerPivot for SharePoint but have successfully deployed a workbook and viewed the PowerPivot Management Dashboard. I have not yet tested the data refresh feature, but I have installed. Continue reading to see how I accomplished my objective. I unintalled SQL Server 2008 R2 and started again. I had different problems which I don't recollect now. However, I uninstalled again and approached installation from a different angle and my next attempt succeeded. The downside of this approach is that you must do all of the things yourself that are done automatically when you install PowerPivot as a new server. Here are the steps that I followed: Install SQL Server 2008 R2 to get a database engine instance installed. Run the SharePoint configuration wizard to set up the SharePoint databases. In Central Administration, create a Web application using classic mode authentication as per a TechNet article on PowerPivot Authentication and Authorization. Then I followed the steps I found at How to: Install PowerPivot for SharePoint on an Existing SharePoint Server. Especially important to note - you must launch setup by using Run as administrator. I did not have to manually deploy the PowerPivot solution as the instructions specify, but it's good to know about this step because it tells you where to look in Central Administration to confirm a successful deployment. I did spot some incorrect steps in the instructions (at the time of this writing) in How To: Configure Stored Credentials for PowerPivot Data Refresh. Specifically, in the section entitled Step 1: Create a target application and set the credentials, both steps 10 and 12 are incorrect. They tell you to provide an actual Windows user name and password on the page where you are simply defining the prompts for your application in the Secure Store Service. To add the Windows user name and password that you want to associate with the application - after you have successfully created the target application - you select the target application and then click Set credentials in the ribbon. Lastly, I followed the instructions at How to: Install Office Data Connectivity Components on a PowerPivot server. However, I have yet to test this in my current environment. I did have several stops and starts throughout this process and edited those out to spare you from reading non-essential information. I believe the explanation I have provided here accurately reflect the steps I followed to produce a working configuration. If you follow these steps and get a different result, please let me know so that together we can work through the issue and correct these instructions. I'm sure there are many other folks in the Microsoft BI community that will appreciate the ability to set up the BI stack in a Windows 7 environment for development or learning purposes. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• links for 2010-05-10

  - by Bob Rhubart

  Announcing the MOS WCI "Community" (World of WebCenter Interaction) In this community you'll find a product related discussion forum moderated by Oracle WebCenter Interaction support engineers, recommended tips and tricks, links to knowledge base articles and best practices for setting up and administering up your environment. We hope you'll take a minute to have a look through the community. (tags: oracle otn webcenter enterprise2.0) Jason Williamson: Tuxedo Runtime for CICS and Batch Webcast "The notion that mainframes can be rehosted on open system is pretty well accepted. There are still some hold out CxO's who don't believe it, but those guys typically are not really looking to migrate anyway and don't take an honest look at the case studies, history and TPC reports." Jason Williamson (tags: oracle otn entarch tuxedo) Tom Hofte: Analyzing Out-Of-Memory issues in WebLogic 10.3.3 with JRockit 4.0 Flight Recorder Tom Hofte shows you "how to capture automatically an overall WLS system image, including a JFR image, after an out-of-memory (OOM) exception has occured in the JVM hosting WLS 10.3.3." (tags: oracle otn weblogic soa java) Install Control Center Agent on Oracle Application Server (Oracle Warehouse Builder (OWB) Weblog) Qianqian Wu show you how to Install and Configure the Application Server; Deploy the Control Center Agent to the Application Server; Optional Configuration Tasks (tags: oracle otn bi datawarehousing) Frank Buytendijk: BI and EPM Landscape "Organizations are getting more serious about ecosystem thinking. They do not evaluate single tools anymore for different application areas, but buy into a complete ecosystem of hardware, software and services. The best ecosystem is the one that offers the most options, in environments where the uncertainty is high and investments are hard to reverse. The key to successfully managing such an environment is middleware, and BI and EPM become increasingly middleware intensive. In fact, given the horizontal nature of BI and EPM, sitting on top of all business functions and applications, you could call them 'upperware.'" -- Frank Buytendijk (tags: oracle otn enterprisearchitecture bi)

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• Setting Up IRM Test Content

  - by martin.abrahams

  A feature of the 11g IRM Server that sometimes gets overlooked is the ability to set up some test content that any IRM user can access to verify that their IRM Desktop can reach the server, authenticate successfully, and render protected content successfully. Such test content is useful for new users, and in troubleshooting scenarios. Here's how to set up some test content... In the management console, go to IRM - Administration - Test Content, as shown. The console will display a list of test content - initially an empty list. Use the Add option to specify the URL of a document or image, and define one or more labels for the test content in whichever languages your users favour. Note that you do not need to seal the image or document in order to use it as test content. Nor do you need to set up any rights for the test content. The IRM Server will handle the sealing and rights assignment automatically such that all authenticated users are authorised to view the test content. Repeat this process for as many different types of content as you would like to offer for test purposes - perhaps a Word document, a PDF document, and an image. To keep things simple the first time I did this, I used the URL of one of the images in the IRM Server's UI - so there was no problem with the IRM Server being able to reach that image. Whatever content you want to use, the IRM Server needs to be able to reach it at the URL you specify. Using Test Content Open a browser and browse to the URL that the IRM Desktop normally uses to access the IRM Server, for example: http://irm11g.oracle.com/irm_desktop If you are not sure, you can find this URL in the Servers tab of the IRM Options dialog. Go to the Test tab, and you will see your test content listed. By opening one of the items, you can verify that your IRM Desktop is healthy and that you can authenticate to the IRM Server.

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• Tab Sweep: Java EE 6 Scopes, Observer, SSL, Workshop, Virtual Server, JDBC Connection Validation

  - by arungupta

  Recent Tips and News on Java, Java EE 6, GlassFish & more : • How Java EE 6 Scopes Affect User Interactions (DevX.com) • Why is Java EE 6 better than Spring ? (Arun Gupta) • JavaEE Revisits Design Patterns: Observer (Murat Yener) • Getting started with Glassfish V3 and SSL (JavaDude) • Software stacks market share within Jelastic: March 2012 (Jelastic) • All aboard the Java EE 6 Love Boat! (Bert Ertman) • Full stack Java EE workshop (Kito Mann) • Create a virtual server from console in glassfish (Hector Guzman) • Glassfish – JDBC Connection Validation explained (Alexandru Ersenie) • Automatically setting the label of a component in JSF 2 (Arjan Tijms) • JSF2 + Primefaces3 + Spring3 & Hibernate4 Integration Project (Eren Avsarogullari) • THE EXECUTABLE FEEL OF JAX-RS 2.0 CLIENT (Adam Bien) Here are some tweets from this week ... web-app dtd(s) on http://t.co/4AN0057b R.I.P. using http://t.co/OTZrOEEr instead. Thank you Oracle! finally got GlassFish and Cassandra running embedded so I can unit test my app #jarhell #JavaEE6 + #NetBeans is really a pleasure to work with! Reading latest chapter in #Spring vs #JavaEE wars https://t.co/RqlGmBG9 (and yes, #JavaEE6 is better :P) @javarebel very easy install and very easy to use in combination with @netbeans and @glassfish. Save your time.

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• Connect to localdb using Sql Server management studio

  - by Magnus Karlsson

  I was trying to find my databse for local db under localhost etc but no luck. The following led me to just connect to it, kind of obvious really when you look at your connections string but.. its sunday morning or something.. From: http://blogs.msdn.com/b/sqlexpress/archive/2011/07/12/introducing-localdb-a-better-sql-express.aspx High-Level Overview After the lengthy introduction it's time to take a look at LocalDB from the technical side. At a very high level, LocalDB has the following key properties: LocalDB uses the same sqlservr.exe as the regular SQL Express and other editions of SQL Server. The application is using the same client-side providers (ADO.NET, ODBC, PDO and others) to connect to it and operates on data using the same T-SQL language as provided by SQL Express. LocalDB is installed once on a machine (per major SQL Server version). Multiple applications can start multiple LocalDB processes, but they are all started from the same sqlservr.exe executable file from the same disk location. LocalDB doesn't create any database services; LocalDB processes are started and stopped automatically when needed. The application is just connecting to "Data Source=(localdb)\v11.0" and LocalDB process is started as a child process of the application. A few minutes after the last connection to this process is closed the process shuts down. LocalDB connections support AttachDbFileName property, which allows developers to specify a database file location. LocalDB will attach the specified database file and the connection will be made to it.

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• Grid Infrastructure Management Repository (GIMR) database now mandatory in Oracle GI 12.1.0.2

  - by Mike Dietrich

  During the installation of Oracle Grid Infrastructure 12.1.0.1 you've had the following option to choose YES/NO to install the Grid Infrastructure Management Repository (GIMR) database MGMTDB: With Oracle Grid Infrastructure 12.1.0.2 this choice has become obsolete and the above screen does not appear anymore. The GIMR database has become mandatory.  What gets stored in the GIMR? See the documentation here See the changes in Oracle Clusterware 12.1.0.2 here: Automatic Installation of Grid Infrastructure Management Repository The Grid Infrastructure Management Repository is automatically installed with Oracle Grid Infrastructure 12c release 1 (12.1.0.2). The Grid Infrastructure Management Repository enables such features as Cluster Health Monitor, Oracle Database QoS Management, and Rapid Home Provisioning, and provides a historical metric repository that simplifies viewing of past performance and diagnosis of issues. This capability is fully integrated into Oracle Enterprise Manager Cloud Control for seamless management. Furthermore what the doc doesn't say explicitly: The -MGMTDB has now become a single-tenant deployment having a CDB with one PDB This will allow the use of a Utility Cluster that can hold the CDB for a collection of GIMR PDBs When you've had already an Oracle 12.1.0.1 GIMR this database will be destroyed and recreated Preserving the CHM/OS data can be acchieved with OCULMON to dump it out into node view The data files associated with it will be created within the same disk group as OCR and VOTING  In a future release there may be an option offered to put in into a separate disk group Some important MOS Notes: MOS Note 1568402.1FAQ: 12c Grid Infrastructure Management Repository, states there's no supported procedure to enable Management Database once the GI stack is configured MOS Note 1589394.1How to Move GI Management Repository to Different Shared Storage(shows how to delete and recreate the MGMTDB) MOS Note 1631336.1Cannot delete Management Database (MGMTDB) in 12.1 -Mike

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• CodePlex Daily Summary for Sunday, July 14, 2013

  CodePlex Daily Summary for Sunday, July 14, 2013Popular ReleasesVidCoder: 1.4.23: New in 1.4.23 Added French translation. Fixed non-x264 video encoders not sticking in video tab. New in 1.4 Updated HandBrake core to 0.9.9 Blu-ray subtitle (PGS) support Additional framerates: 30, 50, 59.94, 60 Additional sample rates: 8, 11.025, 12 and 16 kHz Additional higher bitrates for audio Same as Source Constant Framerate 24-bit FLAC encoding Added Windows Phone 8 and Apple TV 3 presets Introduced process isolation for encodes. Now if HandBrake crashes, VidCoder will ...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.96: Fix for issue #19957: EXE should output the name of the file(s) being minified. Discussion #449181: throw a Sev-2 warning when trailing commas are detected on an Array literal. Perfectly legal to do so, but the behavior ends up working differently on different browsers, so throw a cross-browser warning. Add a few more known global names for improved ES6 compatibility update Nuget package to version 2.5 and automatically add the AjaxMin.targets to your project when you update the package...JSLint.NET: JSLint.NET 0.9.1 Beta: Version 0.9.1 Beta includes: JSLint.NET Console: Console help available using the /? switch (or no arguments). See the Console Options page for more. JSLint.NET for Visual Studio: Support linked JSLintNet.json file. More about this file on the JSLint.NET Settings page. Hide un-implemented menu items. Prefix JSLint errors in the task list. JSLint.NET Core: Allow ignoring of individual files in JSLintNet.json.TypePipe: 1.15.2.0 (.NET 4.5): This is build 1.15.2.0 of the TypePipe for .NET 4.5. Find the complete release notes for the build here: Release Notes.re-linq: 1.15.2.0 (.NET 4.5): This is build 1.15.2.0 of re-linq for .NET 4.5. Find the complete release notes for the build here: Release Notes To use re-linq with .NET 3.5, use a 1.13.x build.Columbus Remote Desktop: 2.0 Sapphire: Added configuration settings Added update notifications Added ability to disable GPU acceleration Fixed connection bugsSearch for Team Foundation Server workitems changes: Release 1.2: - Issue 1184 fixed, - Changeset's comboboxes sorted by Id (From : Ascending - To : Descending) - Application window iconImpulse Media Player: Impulse Media Player 3.5.0.1: Fixed a crash that occurs when copying data from lastfm to file panelPhoneGuitarTab: Release 1.1: Improved UX. Simplified navigation. More performance improvements coming soon.The GLMET Project: Get OS Version: --DataDevelop: Beta 0.6.5: Hotfix bug in Python Table.ImportAll method Updated External Libraries Fixes in Excel Exportation Modify ConnectionString refreshes the Properties Window correctlyUser Group Labs: User Group Data: 01.00.00: This release has the following updates and new features: Initial release with a minimal feature set Easy to use (just add to the social group details page) Edit common user group properties System Requirements DNN v07.00.02 or newer .Net Framework v4.0 or newerCarrotCake, an ASP.Net WebForms CMS: Binaries and PDFs - Zip Archive (v. 4.3 20130709): Product documentation and additional templates for this version is included in the zip archive, or if you want individual files, visit the http://www.carrotware.com website. Templates, in addition to those found in the download, can be downloaded individually from the website as well. If you are coming from earlier versions, make a precautionary backup of your existing website files and database. When installing the update, the database update engine will create the new schema items (if you...Dalmatian Build Script: Dalmatian Build 0.1.3.0: -Minor bug fixes -Added Choose<T> and ChooseYesNo to Console objectPushover.NET: Pushover.NET - Stable Release 10 July 2013: This is the first stable release of Pushover.NET. It includes 14 overloads of the SendNotification method, giving you total flexibility of sending Pushover notifications from your client. Assembly is built to .NET 2.x so it can be called from .NET 2.x, 3.x and 4.x projects. Also available is the Test Harness. This is a small GUI that you can use to test calls to Pushover.NET's main DLL. It's almost fully functional--the sound effects haven't been fully configured so no matter what you pick ...MCEBuddy 2.x: MCEBuddy 2.3.14: 2.3.14 BETA is available through the Early Access Program.Click here https://mcebuddy2x.codeplex.com/discussions/439439 for details and to get access to Early Access Program to download latest releases. Changelog for 2.3.14 (32bit and 64bit) NEW FEATURES: 1. ENHANCEMENTS: 2. Improved eMail notifications 3. Improved metrics details 4. Support for larger history (INI) file (about 45,000 sections, each section can have about 1500 entries) BUG FIXES: 5. Fix for extracting Movie release year from...Azure Depot: Flask: Flask Version 01LINQ to Twitter: LINQ to Twitter v2.1.07: Supports .NET 3.5, .NET 4.0, .NET 4.5, Silverlight 4.0, Windows Phone 7.1, Windows Phone 8, Client Profile, Windows 8, and Windows Azure. 100% Twitter API coverage. Also supports Twitter API v1.1! Also on NuGet.DotNetNuke® Community Edition CMS: 06.02.08: Major Highlights Fixed issue where the application throws an Unhandled Error and an HTTP Response Code of 200 when the connection to the database is lost. Security FixesNone Updated Modules/Providers ModulesNone ProvidersNoneModern UI for WPF: Modern UI 1.0.5: The ModernUI assembly including a demo app demonstrating the various features of Modern UI for WPF. BREAKING CHANGE This version is backwards incompatible. ModernDialog.ShowMessage returns MessageBoxResult instead of bool? Related downloads NuGet ModernUI for WPF is also available as NuGet package in the NuGet gallery, id: ModernUI.WPF Download Modern UI for WPF Templates A Visual Studio 2012 extension containing a collection of project and item templates for Modern UI for WPF. The extensi...New ProjectsA Domain-Driven Design Framework for .Net: A .Net framework library for applying the domain-driven design approach to develop business software.a Linq to Workitem provider: Wilinq is a linq to workitem provider. It also contains WIQL to expression tree parser. Wilinq is based on the the fissum project source codeApprentice for WP: Apprentice for WPArgo New Deal: Data Type DBL DAL UI ToolsC# Practice: C# PracticeDardemEvo: summaryDavid.A.Zhang: Personal class LibrayEnglish Practice Helper: English Practice Helper is a C# window form application for everyone want to practice writing,speaking,listening and reading skill with your OWN computerFinancialManagement: FinancialManagementGoAgent GUI: GoAgent??????。GoAgent: https://code.google.com/p/goagentIndustrial Programming: Industrial Programming approaches tips (it's old and in russian language)ISS.IR.RRN-MS: Summary Tany :PLifeDataManager: Web project to manage some dataMixERP - ERP Solution That Sucks Less: A humble ERP solution that does not scare the users, MixERP is a purely mult-establishment and multi-currency solution.Nokia Portal: Install Nokia, HTC and LG apps on any WP8 devicePenn State SWENG 581 Team 5 Su13.2: This project is an academic extension of the NClass project found at http://nclass.sourceforge.net for the purposes of software testing and quality assurance.Pomp: testProfessor Oak's Pokemon Library DotNet: The Professor Oak's Pokemon Library is a .NET class library that aims to help programmers, by providing different tools to modify the game memory.Pure Music Player: Pure Music PlayerRandomly Balanced Trees: C# Implementations of Treap and Skiplist data structures. Which are representations of randomly balanced binary trees.ReoScript: JavaScript-like script language engine for .NET application. Easy to plug in .NET program and make API extension for script. SQL Queries: This is for all developers help.SqlSetup: This project create SQL server database automatically. Truco Pythons: Truco Argentino (Argentine truc), is a card game developed in python by Argentine programmers of the UNGS (General Sarmiento National University). WebServer .NET: Projekt zawiera oprogramowanie i zestaw narzedzi do zarzadzania serwerem http. Posiada wiele funkcjonalnosci ulatwiajacych korzystanie i konfigurowanie serwera.workspaces: solr exampleWP8NativeAccess: Win32 API wrappers for Windows Phone 8. Intended to be used in WP8 WinRT apps. Includes FileSystem project.

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• How to install OpenCV without nVidia drivers

  - by Subhamoy Sengupta

  I have a laptop with on-board Intel graphics. I have been using OpenCV for years with this machine and I have managed to avoid manual compilation so far. But in Ubuntu 13.10, when I try to install libopencv-dev from the repositories, it brings along libopencv-ocl, which seems to be dependent on nvidia drivers. Letting the driver install messes up my xserver completely and when I do glxinfo afterwards, I get this: name of display: :0.0 Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Error: couldn't find RGB GLX visual or fbconfig Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". To solve this, I purge all nVidia drivers and reinstall xserver, much like it has been suggested here, and when I purge the nvidia drivers, OpenCV development libraries are also removed, as apt-get tells me they are no longer needed. This is foreign to me, because I expected a warning that I have installed packages that depend on this, but how can removing a dependency automatically remove the package I installed without warnings or asking? I understand it has something to do with nVidia being the provider of the libopencv-ocl in the repo. How could I get around it? I would rather not compile OpenCV if I can help it. I have seen similar questions, but not a suitable answer.

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• CodePlex Daily Summary for Monday, June 13, 2011

  CodePlex Daily Summary for Monday, June 13, 2011Popular ReleasesCommunity TFS Build Extensions: Alpha 1.0.0.4: Please see the Source Control change sets for updates in this release This is a minor release to wrap up the BuildReport activity This release contains signed assemblies and a CHM file. Effort is now going into improving the documentation. Note the help on the Guid activity. We plan to provide Actions and a self contained Sequence sample whenever possible. This should address most peoples needs. You can expect frequent updates over the next month as we add more activities and improve the ...Mobile Device Detection and Redirection: 1.0.4.1: Stable Release 51 Degrees.mobi Foundation is the best way to detect and redirect mobile devices and their capabilities on ASP.NET and is being used on thousands of websites worldwide. We’re highly confident in our software and we recommend all users update to this version. Changes to Version 1.0.4.1Changed the BlackberryHandler and BlackberryVersion6Handler to have equal CONFIDENCE values to ensure they both get a chance at detecting BlackBerry version 4&5 and version 6 devices. Prior to thi...Rawr: Rawr 4.1.06: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr AddonWe now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including bag and bank items) like Char...AcDown????? - Anime&Comic Downloader: AcDown????? v3.0 Beta6: ??AcDown?????????????，?????????????，????、????。?????Acfun????? ????32??64? Windows XP/Vista/7 ????????????? ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)?.NET Framework 2.0???(x64)，?????"?????????"??? ??v3.0 Beta6 ?????(imanhua.com)????? ???? ?? ??"????","?????","?????","????"?????? "????"?????"????????"?? ??????????? ?????????????? ?????????????/???? ?? ????Windows 7???????????? ????????? ?? ????????????? ???????/??????????? ???????????? ?? ?? ?????(imanh...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.22: Added lots of optimizations related to expression optimization. Combining adjacent expression statements into a single statement means more if-, for-, and while-statements can get rid of the curly-braces. Then more if-statements can be converted to expressions, and more expressions can be combined with return- and for-statements. Moving functions to the top of their scopes, followed by var-statements, provides more opportunities for expression-combination. Added command-line option to remove ...Pulse: Pulse Beta 2: - Added new wallpapers provider http://wallbase.cc. Supports english search, multiple keywords* - Improved font rendering in Options window - Added "Set wallpaper as logon background" option* - Fixed crashes if there is no internet connection - Fixed: Rewalls downloads empty images sometimes - Added filters* Note 1: wallbase provider supports only english search. Rewalls provider supports only russian search but Pulse automatically translates your english keyword into russian using Google Tr...SizeOnDisk: 1.0.8.4: Fix: Contextual menu failures. Switch to ShellExecuteEx of Win32Api.Phalanger - The PHP Language Compiler for the .NET Framework: 2.1 (June 2011) for .NET 4.0: Release of Phalanger 2.1 - the opensource PHP compiler for .NET framework 4.0. Installation package also includes basic version of Phalanger Tools for Visual Studio 2010. This allows you to easily create, build and debug Phalanger web or application inside this ultimate integrated development environment. You can even install the tools into the free Visual Studio 2010 Shell (Integrated). To improve the performance of your application using MySQL, please use Managed MySQL Extension for Phala...WPF Application Framework (WAF): WPF Application Framework (WAF) 2.0.0.7: Version: 2.0.0.7 (Milestone 7): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Remark The sample applications are using Microsoft’s IoC container MEF. However, the WPF Application Framework (WAF) doesn’t force you to use the same IoC container in your application. You can use ...SimplePlanner: v2.0b: For 2011-2012 Sem 1 ???2011-2012 ????Visual Studio 2010 Help Downloader: 1.0.0.3: Domain name support for proxy Cleanup old packages bug Writing to EventLog with UAC enabled bug Small fixes & RefactoringMedia Companion: MC 3.406b weekly: With this version change a movie rebuild is required when first run -else MC will lock up on exit. Extract the entire archive to a folder which has user access rights, eg desktop, documents etc. Refer to the documentation on this site for the Installation & Setup Guide Important! If you find MC not displaying movie data properly, please try a 'movie rebuild' to reload the data from the nfo's into MC's cache. Fixes Movies Readded movie preference to rename invalid or scene nfo's to info ext...Windows Azure VM Assistant: AzureVMAssist V1.0.0.5: AzureVMAssist V1.0.0.5 (Debug) - Test Release VersionNetOffice - The easiest way to use Office in .NET: NetOffice Release 0.9: Changes: - fix examples (include issue 16026) - add new examples - 32Bit/64Bit Walkthrough is now available in technical Documentation. Includes: - Runtime Binaries and Source Code for .NET Framework:......v2.0, v3.0, v3.5, v4.0 - Tutorials in C# and VB.Net:..............................................................COM Proxy Management, Events, etc. - Examples in C# and VB.Net:............................................................Excel, Word, Outlook, PowerPoint, Access - COMAddi...Reusable Library: V1.1.3: A collection of reusable abstractions for enterprise application developerClosedXML - The easy way to OpenXML: ClosedXML 0.54.0: New on this release: 1) Mayor performance improvements. 2) AdjustToContents now take into account the text rotation. 3) Fixed issues 6782, 6784, 6788HTML-IDEx: HTML-IDEx .15 ALPHA: This release fixes line counting a little bit and adds the masshighlight() sub, which highlights pasted and inserted code.AutoLoL: AutoLoL v2.0.3: - Improved summoner spells are now displayed - Fixed some of the startup errors people got - Double clicking an item selects it - Some usability changes that make using AutoLoL just a little easier - Bug fixes AutoLoL v2 is not an update, but an entirely new version! Please install to a different directory than AutoLoL v1Host Profiles: Host Profiles 1.0: Host Profiles 1.0 Release Quickly modify host file Automatically flush dnsVidCoder: 0.9.2: Updated to HandBrake 4024svn. This fixes problems with mpeg2 sources: corrupted previews, incorrect progress indicators and encodes that incorrectly report as failed. Fixed a problem that prevented target sizes above 2048 MB.New ProjectsAFS - Application Foundation System: application foundation system,including organization structure,rights management,user management,event subscription etc.AuctionWorks: AuctionWorks 1.0Commander: CMD VB6 GUI a CMD application written in Visual Studio 2010 ultimate (VB6). Simple GUI interface, more functions to be addedCotizador de Serigrafia: Cotizador para Industrias SerigráficasESPGame: ESPGame renders a wonderful picture label game environment. It's developed in Python with web framework django.ETRoboCon Race Tracking System: The race tracking system of Embedded Technology Robot Contest in Japan.HNI2: get me at x.InkML JavaScript Library: The InkML JavaScript library allows InkML digital ink to be refernced within web pages and rendered directly into HTML5 <canvas> tags. Ink Markup Language (InkML) is a W3C standard for encoding digital ink (www.w3.org/tr/inkml). Ionut's C++ Programs: Ionut's C++ Programs Are you wondering were you can find software that suports any windows platform and the source code mai be compiled also for a NON-WINDOWS platforms. The Programs are Developed in C++ Mano Machine Emulator: Mano Machine Emulator makes it easier for Computer Science students to learn how the machine works in low level layers. You'll no longer have to imagine how the computer works, instead you will see how it works. It's developed in C#. MSMQ Client Library: MSMQ client library is a client for MSMQ server. It provides easy usage of MSMQ server, and can be used in any type of NET framework projects. It is developed in C#, Framework 4.0MVC Photos: ASP.NET MVC???????????。 mvcConf @:Japan???????????????。MvcPractice: learn the asp.net mvc3 source.Of Shared Points - Blog Demos and Samples: Blog samples and demonstration source code for "Of Shared Points" SharePoint blogPresentation Abstraction Control for Silverlight - PAC4SL: PAC4SL is a delivery framework used for developing Silverlight applications that uses the Presentation Abstraction Control delivery pattern. This delivery pattern is centered on team development with Silverlight. The focus of the pattern is spreading out of application logic into focused delivery tiers. The framework was developed in C# on the 4.0 framework and Silverlight 4.0 The framework is designed to be used with C# and Silverlight 4.0 or higher. queryexecutor: A generic database browserSilVM: MVVM, Silverlight, Arquitetura, ArchitectureSimple Dot Net Grapher: Demo project for drawing graphs based on a equation E.g F(x) = 5x^2 + 10x - 1 Just a math grapher I made to test the DynamicDataDisplay library and dynamic string evaluationSPEvolution: Migration for Microsoft SharePoint 2010 data - Content Types, List, Columns, ListItems and many other - in Rails-style. Write small evolution's steps which help to deploy and synchronize data schema beetween production and development environment. SQLDeploy.Net: SQLDeploy.Net is a utility to deploy [run] a set of SQL Scripts on SQL Server. The utility can be integrated with any deployment manager like Marimba , Hudson etc to automate database deployment. The project is developed on .Net Framework 4.0 but it is equally backward compatible. For a list of known issues and enhancements which are being worked upon, refer to Issue Tracker.webget: webgetwhoami: ip address resolverWPFGenie: about WPF, .Net, framework

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• "Give with Bing" - Help raise money for Sports relief while searching for whatever you want

  - by Testas

  While Sport Relief drives fundraising by challenging people to do physical activities such as running a mile, we’re introducing the ‘Bing Search Mile,’ which gives people the ability to search using Bing and raise money for charity. For every 10 searches made, Bing.com will donate 5p to Sport Relief 2010, enabling you, and your friends and family, to raise money just by searching with Bing until the end of March. With the average mile taking about 10 minutes to run, in the same time, you can make up to 150 searches online - that’s 75p raised for a good cause per ‘search mile’. And while you’re at it,  why not step it up a gear and aim to complete a ‘Search Mile’ each day or even a ‘Search Marathon’ over the 5 week campaign with your colleagues, friends and family? How to get involved: 1.      Visit GiveWithBing.com and download the Official Sport Relief Bing Counter. Once downloaded, the Sport Relief counter will count all the searches you do on Bing from that point on.  2.      Now that you’re registered (and signed in), invite your friends, family, colleagues or classmates to join in the fundraising with you – GiveWithBing.com automatically generates an email explaining how it works for you to send them – the more people who search with you, the more money you raise. People can also register a school 3.      Run your ‘search mile’ every day and watch how your searches turn into life-changing cash for charity, with every 10 searches equalling 5p for Sport Relief. You can check your progress by visiting your individual page (more info here).  This is such a positive initiative and I challenge everyone in the UK to invite their key contacts to be part of Give with Bing.   Chris

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• C#/.NET Little Wonders: Tuples and Tuple Factory Methods

  - by James Michael Hare

  Once again, in this series of posts I look at the parts of the .NET Framework that may seem trivial, but can really help improve your code by making it easier to write and maintain.  This week, we look at the System.Tuple class and the handy factory methods for creating a Tuple by inferring the types. What is a Tuple? The System.Tuple is a class that tends to inspire a reaction in one of two ways: love or hate.  Simply put, a Tuple is a data structure that holds a specific number of items of a specific type in a specific order.  That is, a Tuple<int, string, int> is a tuple that contains exactly three items: an int, followed by a string, followed by an int.  The sequence is important not only to distinguish between two members of the tuple with the same type, but also for comparisons between tuples.  Some people tend to love tuples because they give you a quick way to combine multiple values into one result.  This can be handy for returning more than one value from a method (without using out or ref parameters), or for creating a compound key to a Dictionary, or any other purpose you can think of.  They can be especially handy when passing a series of items into a call that only takes one object parameter, such as passing an argument to a thread's startup routine.  In these cases, you do not need to define a class, simply create a tuple containing the types you wish to return, and you are ready to go? On the other hand, there are some people who see tuples as a crutch in object-oriented design.  They may view the tuple as a very watered down class with very little inherent semantic meaning.  As an example, what if you saw this in a piece of code: 1: var x = new Tuple<int, int>(2, 5); What are the contents of this tuple?  If the tuple isn't named appropriately, and if the contents of each member are not self evident from the type this can be a confusing question.  The people who tend to be against tuples would rather you explicitly code a class to contain the values, such as: 1: public sealed class RetrySettings 2: { 3: public int TimeoutSeconds { get; set; } 4: public int MaxRetries { get; set; } 5: } Here, the meaning of each int in the class is much more clear, but it's a bit more work to create the class and can clutter a solution with extra classes. So, what's the correct way to go?  That's a tough call.  You will have people who will argue quite well for one or the other.  For me, I consider the Tuple to be a tool to make it easy to collect values together easily.  There are times when I just need to combine items for a key or a result, in which case the tuple is short lived and so the meaning isn't easily lost and I feel this is a good compromise.  If the scope of the collection of items, though, is more application-wide I tend to favor creating a full class. Finally, it should be noted that tuples are immutable.  That means they are assigned a value at construction, and that value cannot be changed.  Now, of course if the tuple contains an item of a reference type, this means that the reference is immutable and not the item referred to. Tuples from 1 to N Tuples come in all sizes, you can have as few as one element in your tuple, or as many as you like.  However, since C# generics can't have an infinite generic type parameter list, any items after 7 have to be collapsed into another tuple, as we'll show shortly. So when you declare your tuple from sizes 1 (a 1-tuple or singleton) to 7 (a 7-tuple or septuple), simply include the appropriate number of type arguments: 1: // a singleton tuple of integer 2: Tuple<int> x; 3:  4: // or more 5: Tuple<int, double> y; 6:  7: // up to seven 8: Tuple<int, double, char, double, int, string, uint> z; Anything eight and above, and we have to nest tuples inside of tuples.  The last element of the 8-tuple is the generic type parameter Rest, this is special in that the Tuple checks to make sure at runtime that the type is a Tuple.  This means that a simple 8-tuple must nest a singleton tuple (one of the good uses for a singleton tuple, by the way) for the Rest property. 1: // an 8-tuple 2: Tuple<int, int, int, int, int, double, char, Tuple<string>> t8; 3:  4: // an 9-tuple 5: Tuple<int, int, int, int, double, int, char, Tuple<string, DateTime>> t9; 6:  7: // a 16-tuple 8: Tuple<int, int, int, int, int, int, int, Tuple<int, int, int, int, int, int, int, Tuple<int,int>>> t14; Notice that on the 14-tuple we had to have a nested tuple in the nested tuple.  Since the tuple can only support up to seven items, and then a rest element, that means that if the nested tuple needs more than seven items you must nest in it as well.  Constructing tuples Constructing tuples is just as straightforward as declaring them.  That said, you have two distinct ways to do it.  The first is to construct the tuple explicitly yourself: 1: var t3 = new Tuple<int, string, double>(1, "Hello", 3.1415927); This creates a triple that has an int, string, and double and assigns the values 1, "Hello", and 3.1415927 respectively.  Make sure the order of the arguments supplied matches the order of the types!  Also notice that we can't half-assign a tuple or create a default tuple.  Tuples are immutable (you can't change the values once constructed), so thus you must provide all values at construction time. Another way to easily create tuples is to do it implicitly using the System.Tuple static class's Create() factory methods.  These methods (much like C++'s std::make_pair method) will infer the types from the method call so you don't have to type them in.  This can dramatically reduce the amount of typing required especially for complex tuples! 1: // this 4-tuple is typed Tuple<int, double, string, char> 2: var t4 = Tuple.Create(42, 3.1415927, "Love", 'X'); Notice how much easier it is to use the factory methods and infer the types?  This can cut down on typing quite a bit when constructing tuples.  The Create() factory method can construct from a 1-tuple (singleton) to an 8-tuple (octuple), which of course will be a octuple where the last item is a singleton as we described before in nested tuples. Accessing tuple members Accessing a tuple's members is simplicity itself… mostly.  The properties for accessing up to the first seven items are Item1, Item2, …, Item7.  If you have an octuple or beyond, the final property is Rest which will give you the nested tuple which you can then access in a similar matter.  Once again, keep in mind that these are read-only properties and cannot be changed. 1: // for septuples and below, use the Item properties 2: var t1 = Tuple.Create(42, 3.14); 3:  4: Console.WriteLine("First item is {0} and second is {1}", 5: t1.Item1, t1.Item2); 6:  7: // for octuples and above, use Rest to retrieve nested tuple 8: var t9 = new Tuple<int, int, int, int, int, int, int, 9: Tuple<int, int>>(1,2,3,4,5,6,7,Tuple.Create(8,9)); 10:  11: Console.WriteLine("The 8th item is {0}", t9.Rest.Item1); Tuples are IStructuralComparable and IStructuralEquatable Most of you know about IComparable and IEquatable, what you may not know is that there are two sister interfaces to these that were added in .NET 4.0 to help support tuples.  These IStructuralComparable and IStructuralEquatable make it easy to compare two tuples for equality and ordering.  This is invaluable for sorting, and makes it easy to use tuples as a compound-key to a dictionary (one of my favorite uses)! Why is this so important?  Remember when we said that some folks think tuples are too generic and you should define a custom class?  This is all well and good, but if you want to design a custom class that can automatically order itself based on its members and build a hash code for itself based on its members, it is no longer a trivial task!  Thankfully the tuple does this all for you through the explicit implementations of these interfaces. For equality, two tuples are equal if all elements are equal between the two tuples, that is if t1.Item1 == t2.Item1 and t1.Item2 == t2.Item2, and so on.  For ordering, it's a little more complex in that it compares the two tuples one at a time starting at Item1, and sees which one has a smaller Item1.  If one has a smaller Item1, it is the smaller tuple.  However if both Item1 are the same, it compares Item2 and so on. For example: 1: var t1 = Tuple.Create(1, 3.14, "Hi"); 2: var t2 = Tuple.Create(1, 3.14, "Hi"); 3: var t3 = Tuple.Create(2, 2.72, "Bye"); 4:  5: // true, t1 == t2 because all items are == 6: Console.WriteLine("t1 == t2 : " + t1.Equals(t2)); 7:  8: // false, t1 != t2 because at least one item different 9: Console.WriteLine("t2 == t2 : " + t2.Equals(t3)); The actual implementation of IComparable, IEquatable, IStructuralComparable, and IStructuralEquatable is explicit, so if you want to invoke the methods defined there you'll have to manually cast to the appropriate interface: 1: // true because t1.Item1 < t3.Item1, if had been same would check Item2 and so on 2: Console.WriteLine("t1 < t3 : " + (((IComparable)t1).CompareTo(t3) < 0)); So, as I mentioned, the fact that tuples are automatically equatable and comparable (provided the types you use define equality and comparability as needed) means that we can use tuples for compound keys in hashing and ordering containers like Dictionary and SortedList: 1: var tupleDict = new Dictionary<Tuple<int, double, string>, string>(); 2:  3: tupleDict.Add(t1, "First tuple"); 4: tupleDict.Add(t2, "Second tuple"); 5: tupleDict.Add(t3, "Third tuple"); Because IEquatable defines GetHashCode(), and Tuple's IStructuralEquatable implementation creates this hash code by combining the hash codes of the members, this makes using the tuple as a complex key quite easy!  For example, let's say you are creating account charts for a financial application, and you want to cache those charts in a Dictionary based on the account number and the number of days of chart data (for example, a 1 day chart, 1 week chart, etc): 1: // the account number (string) and number of days (int) are key to get cached chart 2: var chartCache = new Dictionary<Tuple<string, int>, IChart>(); Summary The System.Tuple, like any tool, is best used where it will achieve a greater benefit.  I wouldn't advise overusing them, on objects with a large scope or it can become difficult to maintain.  However, when used properly in a well defined scope they can make your code cleaner and easier to maintain by removing the need for extraneous POCOs and custom property hashing and ordering. They are especially useful in defining compound keys to IDictionary implementations and for returning multiple values from methods, or passing multiple values to a single object parameter. Tweet Technorati Tags: C#,.NET,Tuple,Little Wonders

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• What's the difference between General Ledger Transfer Program, Create Accounting and Submit Accounting?

  - by Oracle_EBS

  In Release 12, the General Ledger Transfer Program is no longer used. Use Create Accounting or Submit Accounting instead. Submit Accounting spawns the Revenue Recognition Process. The Create Accounting program does not. So if you create transactions with rules, then you would want to run Submit Accounting Process to spawn Revenue Recognition to create the distribution rows, which Create Accounting is then spawned to process to the GL. Create Accounting Submit Accounting Short Name for Concurrent Program XLAACCPB ARACCPB Specific to Receivables No Yes Runs Revenue Recognition automatically No Yes Can be run real-time for one Transaction/Receipt at a time Yes No Spawns the following Programs 1) XLAACCPB module: Create Accounting 2) XLAACCUP module: Accounting Program 3) GLLEZL module: Journal Import 1) ARTERRPM module: Revenue Recognition Master Program 2) ARTERRPW module: Revenue Recognition with parallel workers - could be numerous 3) ARREVSWP - Revenue Contingency Analyzer 4) XLAACCPB module: Create Accounting 5) XLAACCUP module: Accounting Program 5) GLLEZL module: Journal Import Keep in mind, Reports owned by application 'Subledger Accounting' cannot be seen when running the report from Receivables responsibility. You may want to request your sysadmin to attach the following SLA reports/programs to your AR responsibility as you will need these for your AR closing process: XLAPEXRPT : Subledger Period Close Exception Report - shows transactions in status final, incomplete and unprocessed. XLAGLTRN : Transfer Journal Entries to GL - transfers transactions in final status and manually created transactions to GL To add reports/programs owned by application 'Subledger Accounting' (Subledger Period Close Exception Report and Transfer Journal Entries to GL_ Add to the request group as follows: Let's use Subledger Accounting Report XLATBRPT: Open Account Balances Listing Report as an example. Responsibility: System Administrator Navigation: Security > Responsibility > Define Query the name of your Receivables Responsibility and note the Request Group (ie. Receivables All) Navigation: Security > Responsibility > Request Query the Request Group Go to Request Zone and Click on Add Record Enter the following: Type: Program Name: Open Account Balances Listing Save Responsibility: Receivables Manager Navigation: Control > Requests > Run In the list of values you should now see 'Open Account Balances Listing' report References: Note: 748999.1 How to add reports for application subledger accounting to receivables responsibiilty Note: 759534.1 R12 ARGLTP General Ledger Transfer Program Errors Out Note: 1121944.1 Understanding and Troubleshooting Revenue Recognition in Oracle Receivables

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• steam won't open after install

  - by Dan Cooper

  I've looked all over the place for a solution but no one seems to be getting the same error codes as me. When I try to run Steam through terminal I get the following error: Running Steam on ubuntu 13.04 64-bit STEAM_RUNTIME is enabled automatically Installing breakpad exception handler for appid(steam)/version(1367621987_client) Installing breakpad exception handler for appid(steam)/version(1367621987_client) unlinked 0 orphaned pipes Gtk-Message: Failed to load module "overlay-scrollbar" Installing breakpad exception handler for appid(steam)/version(1367621987_client) [1013/104817:WARNING:proxy_service.cc(646)] PAC support disabled because there is no system implementation /home/buildbot/buildslave_steam/steam_rel_client_ubuntu12_linux/build/src/steamUI/../common/steam/client_api.cpp (281) : Assertion Failed: ClientAPI_InitGlobalInstance: InternalAPI_Init_Internal failed. Assert( Assertion Failed: ClientAPI_InitGlobalInstance: InternalAPI_Init_Internal failed. ):/home/buildbot/buildslave_steam/steam_rel_client_ubuntu12_linux/build/src/steamUI/../common/steam/client_api.cpp:281 Installing breakpad exception handler for appid(steam)/version(1367621987_client) Uploading dump (out-of-process) [proxy ''] /tmp/dumps/assert_20131013104817_1.dmp /home/buildbot/buildslave_steam/steam_rel_client_ubuntu12_linux/build/src/steamUI/SteamStartup.cpp (627) : Assertion Failed: ! "There was a problem with your Steam installation.\n" "Please reinstall steam.\n" unlinked 2 orphaned pipes CAsyncIOManager: 0 threads terminating. 0 reads, 0 writes, 0 deferrals. CAsyncIOManager: 75 single object sleeps, 0 multi object sleeps CAsyncIOManager: 0 single object alertable sleeps, 1 multi object alertable sleeps [2013-10-13 10:48:16] Startup - updater built May 3 2013 15:08:27 [2013-10-13 10:48:16] Verifying installation... [2013-10-13 10:48:16] Verification complete Shutting down. . . [2013-10-13 10:48:17] Shutdown Finished uploading minidump (out-of-process): success = yes response: CrashID=bp-d172a742-b7dd-419c-b235-d60c32131013 I've tried sudo apt-get purge and terminal tries to tell me I don't have Steam installed. I've tried reinstalling with software center but that doesn't help either.

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• NetBeans Sources as a Platform

  - by Geertjan

  By default, when you create a new NetBeans module, the 'development IDE' is the platform to which you'll be deploying your module. It's a good idea to create your own platform and check that into your own repo, so that everyone working on your project will be able to work with a standardized platform, rather than whatever happens to be beneath the development IDE your using. Something else you can do is use the NetBeans sources as your platform, once you've checked them out. That's something I did the other day when trying to see whether adding 'setActivatedNodes' to NbSheet was sufficient for getting UndoRedo enabled in the Properties Window. So that's a good use case, i.e., you'd like to change the NetBeans Platform somehow, or you're fixing a bug, in other words, in some way you need to change the NetBeans Platform sources and then would like to try out the result of your changes as a client of your changes. In that scenario, here's how to set up and use a NetBeans Platform from the NetBeans sources. Run 'ant build platform' on the root of the NetBeans sources. You'll end up with nbbuild/netbeans containing a subfolder 'platform' and a subfolder 'harness'. There's your NetBeans Platform. Go to Tools | NetBeans Platform and browse to nbbuild/netbeans', registering it as your NetBeans Platform. Create a new NetBeans module, using the new NetBeans Platform as the platform. Now the cool thing is you can open any of the NetBeans modules from the NetBeans Platform modules in the NetBeans sources. When you change the source code of one of these modules and then build that module, the changed JAR will automatically be added to the right place in the nbbuild/netbeans folder. And when you do a 'clean' on a NetBeans Platform module, the related JAR will be removed from nbbuild/netbeans. In other words, in this way, by changing the NetBeans sources, you're directly changing the platform that your custom module will be running on when you deploy it. That's pretty cool and gives you a more connected relationship to your platform, since you're able to change it in the same way as the custom modules you create.

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• Using Asset Groups

  - by Owen Allen

  I got a question about putting assets in groups: "I'm planning on installing some agents manually on existing systems, and I want to have them put in a specific asset group once they're discovered. I don't see any way to tell the install script to put the asset in a group. How can I add the assets to a group, either through the UI or the CLI?" There are a few ways. In the CLI, you can use groups mode, and use this command to add an asset to a group: attach -n| --gear <asset name> -g| --group <group> You can also use -U| --uuid <UUID> to specify the asset if you have multiple assets with the same name. In the UI, you have a couple of options. You can select an asset and click Add Asset to Group to add it to a group you select. Alternatively, if you're trying to make a group for assets with a specific characteristic, you can specify rules that will automatically add assets to a group based on that characteristic.

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• Reclaim Vertical UI Space by Moving Your Tabs to the Side in Firefox

  - by Asian Angel

  Are you looking for a way to move your tabs to the side in Firefox and gain access to more vertical UI space? The Vertical Tabs extension for Firefox lets you accomplish both in a matter of moments. As soon as you install the extension and restart Firefox the Tab Bar will be automatically converted into a shiny new Vertical Tabs Sidebar. All that you have to do is start enjoying the extra vertical UI space. Some things to keep in mind when using the extension are: You can easily adjust the width of the sidebar to suit your needs using the mouse (very nice!) The Firefox Menu Button, Panorama Button, and Tab Control controls move to the bottom of the sidebar (see screenshot above) You can group tabs if needed or desired There is no option available to move the sidebar to the right side of the browser at the moment The use of Personas themes (or other themes) may affect how the text for the tabs will look (i.e. a slightly fuzzy shadow effect when not selected as seen in the screenshot above) Note: Works with Firefox 4.0b7 – 4.0.* Install the Vertical Tabs Extension [Mozilla Add-ons] Latest Features How-To Geek ETC Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) Reclaim Vertical UI Space by Moving Your Tabs to the Side in Firefox Wind and Water: Puzzle Battles – An Awesome Game for Linux and Windows How Star Wars Changed the World [Infographic] Tabs Visual Manager Adds Thumbnailed Tab Switching to Chrome Daisies and Rye Swaying in the Summer Wind Wallpaper Read On Phone Pushes Data from Your Desktop to the Appropriate Android App

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• Syslog/kernlog filling up with "did not claim interface N before use"

  - by Wayne Werner

  As I discovered when asking this question, it appears that demond_nscan is trying to use a device without claiming it. And it does it.... hundreds of time per second apparently. This makes kern.log and syslog huge (100GB ). In this particular case the problem is directly a result of some Lexmark drivers that were installed (found at /usr/local/lexmark/unix_scan_drivers/bin/demond_nscan). Here are a few things I know: The drivers are for an all-in-one printer/scanner device. There was a previous lexmark printer-only that was installed with CUPS This driver was the one for CUPS systems, and I think that it automatically added it to the list of printers in CUPS. The issue started spamming kern/syslog only after these drivers were installed, using the lexmark installers While googling around I found this thread that's not completely related, but it does mention that it might be happening when two drivers try to control the same device at the same time. How can I resolve this issue so that either I only have one driver, or get the driver to claim the device before usage?

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• Steam freezes at login screen

  - by Snail284069

  I have just installed Steam on Xubuntu, and after it finished installing it went to the login screen, but the screen is frozen, and I cannot press the buttons. When running Steam though the terminal it says: alex@Craptop:~$ steam Running Steam on ubuntu 14.04 32-bit STEAM_RUNTIME is enabled automatically Installing breakpad exception handler for appid(steam)/version(1400690891_client) Installing breakpad exception handler for appid(steam)/version(1400690891_client) Installing breakpad exception handler for appid(steam)/version(1400690891_client) Installing breakpad exception handler for appid(steam)/version(1400690891_client) Gtk-Message: Failed to load module "overlay-scrollbar" Gtk-Message: Failed to load module "unity-gtk-module" Installing breakpad exception handler for appid(steam)/version(1400690891_client) [0522/174755:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number Installing breakpad exception handler for appid(steam)/version(1400690891_client) Installing breakpad exception handler for appid(steam)/version(1400690891_client) [HTTP Remote Control] HTTP server listening on port 35849. Installing breakpad exception handler for appid(steam)/version(1400690891_client) Installing breakpad exception handler for appid(steam)/version(1400690891_client) Process 2764 created /alex-ValveIPCSharedObjects5 Installing breakpad exception handler for appid(steam)/version(1400690891_client) Generating new string page texture 12: 48x256, total string texture memory is 49.15 KB Generating new string page texture 13: 256x256, total string texture memory is 311.30 KB Generating new string page texture 14: 128x256, total string texture memory is 442.37 KB Generating new string page texture 15: 384x256, total string texture memory is 835.58 KB and then the terminal gets stuck too, letting me type into it but not doing anything. I tried reinstalling and restarting the computer, but it still keeps happening.

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• Lexmark X5650 doesn't print (scanning works)

  - by unor

  I want to use a Lexmark X5650 under Ubuntu. When I connect it via USB, Ubuntu recognizes the device, but can't find a driver. On the Lexmark support site, you can select "Unix/Linux" and then "Ubuntu 9.04", "9.10", "10.04" and "10.10". However, all versions lead to the same driver: lexmark-08z-series-driver-1.0-1.i386.deb.sh.tar.gz (Last updated: 2012-04-13). While installing this driver, the installer asks me to connect the device. As soon as I connect it via USB, Ubuntu now adds the printer automatically. So after the installation completed, I had 2 printers set up. But I can't print anything (I tried it with both printer configurations). Scanning works fine, though. So I guess the driver installation and the device connection are successful. When I try to print something, the print job is listed in the printing queue, but nothing happens. After some time, I get an error message which starts a debug wizard, but in the end it reads something like "Sorry, couldn't find the reason". I had several different error messages (unfortunately, I didn't record them), one was approximately like "printer cannot communicate with computer". Another said that my color ink was low (which is true, but black is full). Another said there was an input/output error. I tried it with Ubuntu 11.10. Because I read that some people had success with 10.04., I installed it in QEMU and installed the driver there, too. Same problem, though. I'd like to upgrade to 12.04, if it should work there for any reason, but I read that for some people this printer stopped working in 12.04 :/ So, it would be best if the printer would work in 12.04. If that's not possible, I'd be fine with starting a QEMU virtual machine with any GNU/Linux distribution that works with my printer.

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• New install of Steam not running on new install of Ubuntu 13.10

  - by inferKNOX

  I tried purging steam, un-installing and reinstalling steam, deleting /home/.steam/share/steam/appcache/, deleting everything in /home/.steam/share/steam/ and nothing helped. I installed Ubuntu, then steam into it directly afterward. I installed steam from Ubuntu Software Centre, launched it, it updated 206MB, then closed. When I tried to launch it again, it momentarily flashes the checking for update dialogue, then closes every time. Then (in an unrelated event) Ubuntu said some system updates are necessary and one of them was Steam launcher. I did the update, tried to launch Steam; same story. Really need help on this, as I did a complete re-isntall of Ubuntu, then Steam again and it did not help at all. Here's the log: user@computer:~$ steam Running Steam on ubuntu 13.10 64-bit STEAM_RUNTIME is enabled automatically Installing breakpad exception handler for appid(steam)/version(1381282832_client) Installing breakpad exception handler for appid(steam)/version(1381282832_client) Installing breakpad exception handler for appid(steam)/version(1381282832_client) unlinked 0 orphaned pipes removing stale semaphore last operated on by process 2297 with name 0eBlobRegistryMutex_313E4D748EE12691A95DDE8913185F7E removing stale semaphore last operated on by process 2297 with name 0eBlobRegistrySignal_313E4D748EE12691A95DDE8913185F7E removing stale semaphore last operated on by process 2297 with name 0emSteamEngineInstance removing stale semaphore last operated on by process 2297 with name 0eSteamEngineLock Gtk-Message: Failed to load module "overlay-scrollbar" Gtk-Message: Failed to load module "unity-gtk-module" Installing breakpad exception handler for appid(steam)/version(1381282832_client) Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number [1030/115016:WARNING:proxy_service.cc(958)] PAC support disabled because there is no system implementation Installing breakpad exception handler for appid(steam)/version(1381282832_client) Installing breakpad exception handler for appid(steam)/version(1381282832_client) Installing breakpad exception handler for appid(steam)/version(1381282832_client) Installing breakpad exception handler for appid(steam)/version(1381282832_client) Steam: An X Error occurred X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 18 (X_ChangeProperty) Value in failed request: 0x0 Serial number of failed request: 105 xerror_handler: X failed, continuing Uploading dump (out-of-process) [proxy ''] /tmp/dumps/crash_20131030115012_1.dmp /home/user/.local/share/Steam/steam.sh: line 717: 2650 Segmentation fault (core dumped) $STEAM_DEBUGGER "$STEAMROOT/$PLATFORM/$STEAMEXE" "$@" Finished uploading minidump (out-of-process): success = yes response: CrashID=bp-484ddae7-0b1c-4ae4-be84-42a9c2131030 Thanks in advance.

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• cPanel's Web Disk - Security issues?

  - by Tim Sparks

  I'm thinking of using Web Disk (built into the later versions of cPanel) to allow a Windows or Mac computer to map a network drive that is actually a folder on our website (above the public_html folder). We currently use an antiquated local server to store information, but it is only accessible from one location - we would like to be able to access it from other locations as well. I understand that folders above public_html are not accessible via http, but I want to know how secure is the access to these folders as a network drive? There is potentially sensitive information that we need to decide whether it is appropriate to store here. The map network drive option seems to work well as it behaves as if the files are on your own computer (i.e. you can open and save files without then having to upload them - as it happens automatically). We have used Dropbox for similar purposes, but space is a issue with them, as is accountability and so we haven't used it for sensitive information. Are there any notable security concerns with using Web Disk as a secure file server?

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• New Big Data Appliance Security Features

  - by mgubar

  The Oracle Big Data Appliance (BDA) is an engineered system for big data processing.  It greatly simplifies the deployment of an optimized Hadoop Cluster – whether that cluster is used for batch or real-time processing.  The vast majority of BDA customers are integrating the appliance with their Oracle Databases and they have certain expectations – especially around security.  Oracle Database customers have benefited from a rich set of security features:  encryption, redaction, data masking, database firewall, label based access control – and much, much more.  They want similar capabilities with their Hadoop cluster.    Unfortunately, Hadoop wasn’t developed with security in mind.  By default, a Hadoop cluster is insecure – the antithesis of an Oracle Database.  Some critical security features have been implemented – but even those capabilities are arduous to setup and configure.  Oracle believes that a key element of an optimized appliance is that its data should be secure.  Therefore, by default the BDA delivers the “AAA of security”: authentication, authorization and auditing. Security Starts at Authentication A successful security strategy is predicated on strong authentication – for both users and software services.  Consider the default configuration for a newly installed Oracle Database; it’s been a long time since you had a legitimate chance at accessing the database using the credentials “system/manager” or “scott/tiger”.  The default Oracle Database policy is to lock accounts thereby restricting access; administrators must consciously grant access to users. Default Authentication in Hadoop By default, a Hadoop cluster fails the authentication test. For example, it is easy for a malicious user to masquerade as any other user on the system.  Consider the following scenario that illustrates how a user can access any data on a Hadoop cluster by masquerading as a more privileged user.  In our scenario, the Hadoop cluster contains sensitive salary information in the file /user/hrdata/salaries.txt.  When logged in as the hr user, you can see the following files.  Notice, we’re using the Hadoop command line utilities for accessing the data: $ hadoop fs -ls /user/hrdataFound 1 items-rw-r--r--   1 oracle supergroup         70 2013-10-31 10:38 /user/hrdata/salaries.txt$ hadoop fs -cat /user/hrdata/salaries.txtTom Brady,11000000Tom Hanks,5000000Bob Smith,250000Oprah,300000000 User DrEvil has access to the cluster – and can see that there is an interesting folder called “hrdata”.  $ hadoop fs -ls /user Found 1 items drwx------   - hr supergroup          0 2013-10-31 10:38 /user/hrdata However, DrEvil cannot view the contents of the folder due to lack of access privileges: $ hadoop fs -ls /user/hrdata ls: Permission denied: user=drevil, access=READ_EXECUTE, inode="/user/hrdata":oracle:supergroup:drwx------ Accessing this data will not be a problem for DrEvil. He knows that the hr user owns the data by looking at the folder’s ACLs. To overcome this challenge, he will simply masquerade as the hr user. On his local machine, he adds the hr user, assigns that user a password, and then accesses the data on the Hadoop cluster: $ sudo useradd hr $ sudo passwd $ su hr $ hadoop fs -cat /user/hrdata/salaries.txt Tom Brady,11000000 Tom Hanks,5000000 Bob Smith,250000 Oprah,300000000 Hadoop has not authenticated the user; it trusts that the identity that has been presented is indeed the hr user. Therefore, sensitive data has been easily compromised. Clearly, the default security policy is inappropriate and dangerous to many organizations storing critical data in HDFS. Big Data Appliance Provides Secure Authentication The BDA provides secure authentication to the Hadoop cluster by default – preventing the type of masquerading described above. It accomplishes this thru Kerberos integration. Figure 1: Kerberos Integration The Key Distribution Center (KDC) is a server that has two components: an authentication server and a ticket granting service. The authentication server validates the identity of the user and service. Once authenticated, a client must request a ticket from the ticket granting service – allowing it to access the BDA’s NameNode, JobTracker, etc. At installation, you simply point the BDA to an external KDC or automatically install a highly available KDC on the BDA itself. Kerberos will then provide strong authentication for not just the end user – but also for important Hadoop services running on the appliance. You can now guarantee that users are who they claim to be – and rogue services (like fake data nodes) are not added to the system. It is common for organizations to want to leverage existing LDAP servers for common user and group management. Kerberos integrates with LDAP servers – allowing the principals and encryption keys to be stored in the common repository. This simplifies the deployment and administration of the secure environment. Authorize Access to Sensitive Data Kerberos-based authentication ensures secure access to the system and the establishment of a trusted identity – a prerequisite for any authorization scheme. Once this identity is established, you need to authorize access to the data. HDFS will authorize access to files using ACLs with the authorization specification applied using classic Linux-style commands like chmod and chown (e.g. hadoop fs -chown oracle:oracle /user/hrdata changes the ownership of the /user/hrdata folder to oracle). Authorization is applied at the user or group level – utilizing group membership found in the Linux environment (i.e. /etc/group) or in the LDAP server. For SQL-based data stores – like Hive and Impala – finer grained access control is required. Access to databases, tables, columns, etc. must be controlled. And, you want to leverage roles to facilitate administration. Apache Sentry is a new project that delivers fine grained access control; both Cloudera and Oracle are the project’s founding members. Sentry satisfies the following three authorization requirements: Secure Authorization:  the ability to control access to data and/or privileges on data for authenticated users. Fine-Grained Authorization:  the ability to give users access to a subset of the data (e.g. column) in a database Role-Based Authorization:  the ability to create/apply template-based privileges based on functional roles. With Sentry, “all”, “select” or “insert” privileges are granted to an object. The descendants of that object automatically inherit that privilege. A collection of privileges across many objects may be aggregated into a role – and users/groups are then assigned that role. This leads to simplified administration of security across the system. Figure 2: Object Hierarchy – granting a privilege on the database object will be inherited by its tables and views. Sentry is currently used by both Hive and Impala – but it is a framework that other data sources can leverage when offering fine-grained authorization. For example, one can expect Sentry to deliver authorization capabilities to Cloudera Search in the near future. Audit Hadoop Cluster Activity Auditing is a critical component to a secure system and is oftentimes required for SOX, PCI and other regulations. The BDA integrates with Oracle Audit Vault and Database Firewall – tracking different types of activity taking place on the cluster: Figure 3: Monitored Hadoop services. At the lowest level, every operation that accesses data in HDFS is captured. The HDFS audit log identifies the user who accessed the file, the time that file was accessed, the type of access (read, write, delete, list, etc.) and whether or not that file access was successful. The other auditing features include: MapReduce:  correlate the MapReduce job that accessed the file Oozie:  describes who ran what as part of a workflow Hive:  captures changes were made to the Hive metadata The audit data is captured in the Audit Vault Server – which integrates audit activity from a variety of sources, adding databases (Oracle, DB2, SQL Server) and operating systems to activity from the BDA. Figure 4: Consolidated audit data across the enterprise.  Once the data is in the Audit Vault server, you can leverage a rich set of prebuilt and custom reports to monitor all the activity in the enterprise. In addition, alerts may be defined to trigger violations of audit policies. Conclusion Security cannot be considered an afterthought in big data deployments. Across most organizations, Hadoop is managing sensitive data that must be protected; it is not simply crunching publicly available information used for search applications. The BDA provides a strong security foundation – ensuring users are only allowed to view authorized data and that data access is audited in a consolidated framework.

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• Annotate source code with diagrams as comments

  - by Steven Lu

  I write a lot of (primarily c++ and javascript) code that touches upon computational geometry and graphics and those kinds of topics, so I have found that visual diagrams have been an indispensable part of the process of solving problems. I have determined just now that "oh, wouldn't it just be fantastic if I could somehow attach a hand-drawn diagram to a piece of code as a comment", and this would allow me to come back to something I worked on, days, weeks, months earlier and far more quickly re-grok my algorithms. As a visual learner, I feel like this has the potential to improve my productivity with almost every type of programming because simple diagrams can help with understanding and reasoning about any type of non-trivial data structure. Graphs for example. During graph theory class at university I had only ever been able to truly comprehend the graph relationships that I could actually draw diagrammatical representations of. So... No IDE to my knowledge lets you save a picture as a comment to code. My thinking was that I or someone else could come up with some reasonably easy-to-use tool that can convert an image into a base64 binary string which I can then insert into my code. If the conversion/insertion process can be streamlined enough it would allow a far better connection between the diagram and the actual code, so I no longer need to chronographically search through my notebooks. Even more awesome: plugins for the IDEs to automatically parse out and display the image. There is absolutely nothing difficult about this from a theoretical point of view. My guess is that it would take some extra time for me to actually figure out how to extend my favorite IDEs and maintain these plugins, so I'd be totally happy with a sort of code post-processor which would do the same parsing out and rendering of the images and show them side by side with the code, inside of a browser or something. Since I'm a javascript programmer by trade. What do people think? Would anyone pay for this? I would.

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