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  • Awesome Read: Buck Woody&rsquo;s post on the proper use of the Windows Azure VM Role

    - by Enrique Lima
    I have heard some service providers (or cloud providers), hosting companies and such complain, criticize or even venture to call foul on Microsoft’s Azure VM Role.  The problem:  None of them have gone through the effort of truly understanding (or perhaps not wanting to know) what is going on there.  Many have jumped right into the “purist” definition of IaaS, or PaaS for that matter. Ok, Buck’s post is a true gem (my opinion) in the sense it gives you parallels of what the VM Role is and is not.  And it brings Hyper-V and SCVMM to the forefront explaining what it is and what it also offers to the IaaS Microsoft offers. Here is an excerpt of the summary, but please go on over to read his post it will clear a lot if you are wondering when and how to use the Windows Azure VM Role. The excerpt: “Virtualizing servers alone has limitations of scale, availability and recovery. Microsoft’s offering in this area is Hyper-V and System Center, not the VM Role. The VM Role is still used for running Stateless code, just like the Web and Worker Roles, with the exception that it allows you more control over the environment of where that code runs.” The source and post:  Buck Woody -http://blogs.msdn.com/b/buckwoody/archive/2010/12/28/the-proper-use-of-the-vm-role-in-windows-azure.aspx?wa=wsignin1.0

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  • Map Generation Algorithms for Minecraft Clone

    - by Danjen
    I'm making a Minecraft clone for the sake of it (with some inspriation from Dwarf Fortress) and had a few questions about the way the world generation is handled. Things I want it to cover: Biomes such as hills, mountains, forests, etc. Caves/caverns/tunnels Procedural (so it stretches to infinity... is wrap-around a possibility?) Breaking the map into smaller chunks Moddable (ie, new terrain types) Multiplayer compatible In particular, I've seen things such as Perlin Noise, Heightmaps, and Marching Cubes thrown around. These are like different tools to use, but I don't know when or why I would use them. Are there any other techniques that are useful for map generation? I realize this is borderline subjective and open-ended, but I am looking for some more insight into the processes involved.

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  • My ubuntu runs in slow motion on ubuntu 13.04 asus 1015cx

    - by thj
    My specs: my Asus EeePC 1015CX certified by ubuntu 12.04 lts asus 1015 cx with gma 3600 graphic card intel atom dual core ubuntu 13.04 My problem: I need to use ubuntu 13.04, not 12.04. ubuntu 13.04 runs in slow motion on default unity desktop, is it graphic card problem? when i clicked file, runs in very slow animation on unity. windows comes up in very slow motion I can't even use ubuntu 13.04 because so slow. what's minimal requirement of ubuntu 13.04 or unity desktop? why is it so slow? what kind of processes should i take to fix it? I tried by myself but no good result. Need some help anyway. Any ideas ? maybe i should change hardware lol? my Asus EeePC 1015CX certified by ubuntu 12.04 lts !

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  • Upcoming Conferences to Showcase Oracle's Latest Procurement Applications

    - by Paul Homchick
    The 2010 conference season is kicking off with a series of events featuring executive updates demos of Oracle's newest procurement products. Attendees will also have the chance to meet with Oracle customers and technical representatives to discuss best practices for optimizing procurement processes. New Procurement TechnologiesOracle will use the events to showcase a number of procurement applications introduced since last year's Oracle OpenWorld: Oracle Supplier Lifecycle Management--a supplier-development application released this year to simplify the qualification, assessment, and performance monitoring of vendors (see related story). Oracle Supplier Hub--another 2010 introduction, the Oracle Supplier Hub unifies and shares critical information about all the suppliers in an organization's stable (see related story). Oracle Spend Classification--an intelligence-based application that improves spend and performance visibility. Oracle Procurement On Demand--the adaptive solution that enables and accelerates procurement transformation. Oracle Procurement and Spend Analytics 7.9.6.1--the latest release of Oracle Business Intelligence extends new content and integration capabilities to additional platforms and languages. Click here to find an event near you: List of conferences by location.

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  • What is start_daemon?

    - by David Parks
    I'm trying to understand start_daemon in the following /etc/init.d/nagios-nrpe-server startup script: start) if [ "$INETD" = 1 ]; then exit 1 fi log_daemon_msg "Starting $DESC" "$NAME" start_daemon -p $PIDDIR/nrpe.pid $NICENESS $DAEMON -c $CONFIG -d $DAEMON_OPTS log_end_msg $? ;; In particular, when I start this service it isn't writing a PID file as expected, thus the stop service nagios-nrpe-server command is not working (I need to manually kill the processes). I'm trying to figure out how to trouble shoot the problem, but I can't run start_daemon ... from the command line. I want to reproduce what the script is doing manually so I can work on what the problem is.

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  • GTK equivalent to MS Spy++

    - by zetah
    Spy++ comes with paid version of MS Visual Studio as utility that gives you a graphical view of the system’s processes, threads, windows, and window messages. and it's not only utility on Win32 that offers this feature, but I use it as popular example. It lists all UI elements of all running applications, and user can use "Find Tool" to locate UI element of interest and get response dialog with versatile information about that object, like UI control name, text contents, and many other data of potential interest to a programmer. I'm interested in similar GTK application which can at least return GTK UI element (widget) name and extracted text contents of that element of arbitrary running process. I couldn't find anything related using Google

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  • SQL – Quick Start with Explorer Sections of NuoDB – Query NuoDB Database

    - by Pinal Dave
    This is the third post in the series of the blog posts I am writing about NuoDB. NuoDB is very innovative and easy-to-use product. I can clearly see how one can scale-out NuoDB with so much ease and confidence. In my very first blog post we discussed how we can install NuoDB (link), and in my second post I discussed how we can manage the NuoDB database transaction engines and storage managers with a few clicks (link). Note: You can Download NuoDB from here. In this post, we will learn how we can use the Explorer feature of NuoDB to do various SQL operations. NuoDB has a browser-based Explorer, which is very powerful and has many of the features any IDE would normally have. Let us see how it works in the following step-by-step tutorial. Let us go to the NuoDBNuoDB Console by typing the following URL in your browser: http://localhost:8080/ It will bring you to the QuickStart screen. Make sure that you have created the sample database. If you have not created sample database, click on Create Database and create it successfully. Now go to the NuoDB Explorer by clicking on the main tab, and it will ask you for your domain username and password. Enter the username as a domain and password as a bird. Alternatively you can also enter username as a quickstart and password as a quickstart. Once you enter the password you will be able to see the databases. In our example we have installed the Sample Database hence you will see the Test database in our Database Hierarchy screen. When you click on database it will ask for the database login. Note that Database Login is different from Domain login and you will have to enter your database login over here. In our case the database username is dba and password is goalie. Once you enter a valid username and password it will display your database. Further expand your database and you will notice various objects in your database. Once you explore various objects, select any database and click on Open. When you click on execute, it will display the SQL script to select the data from the table. The autogenerated script displays entire result set from the database. The NuoDB Explorer is very powerful and makes the life of developers very easy. If you click on List SQL Statements it will list all the available SQL statements right away in Query Editor. You can see the popup window in following image. Here is the cool thing for geeks. You can even click on Query Plan and it will display the text based query plan as well. In case of a SELECT, the query plan will be much simpler, however, when we write complex queries it will be very interesting. We can use the query plan tab for performance tuning of the database. Here is another feature, when we click on List Tables in NuoDB Explorer.  It lists all the available tables in the query editor. This is very helpful when we are writing a long complex query. Here is a relatively complex example I have built using Inner Join syntax. Right below I have displayed the Query Plan. The query plan displays all the little details related to the query. Well, we just wrote multi-table query and executed it against the NuoDB database. You can use the NuoDB Admin section and do various analyses of the query and its performance. NuoDB is a distributed database built on a patented emergent architecture with full support for SQL and ACID guarantees.  It allows you to add Transaction Engine processes to a running system to improve the performance of your system.  You can also add a second Storage Engine to your running system for redundancy purposes.  Conversely, you can shut down processes when you don’t need the extra database resources. NuoDB also provides developers and administrators with a single intuitive interface for centrally monitoring deployments. If you have read my blog posts and have not tried out NuoDB, I strongly suggest that you download it today and catch up with the learnings with me. Trust me though the product is very powerful, it is extremely easy to learn and use. Reference: Pinal Dave (http://blog.sqlauthority.com)   Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: NuoDB

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  • Oracle Database 12c: Oracle Multitenant Option

    - by hamsun
    1. Why ? 2. What is it ? 3. How ? 1. Why ? The main idea of the 'grid' is to share resources, to make better use of storage, CPU and memory. If a database administrator wishes to implement this idea, he or she must consolidate many databases to one database. One of the concerns of running many applications together in one database is: ‚what will happen, if one of the applications must be restored because of a human error?‘ Tablespace point in time recovery can be used for this purpose, but there are a few prerequisites. Most importantly the tablespaces are strictly separated for each application. Another reason for creating separated databases is security: each customer has his own database. Therefore, there is often a proliferation of smaller databases. Each of them must be maintained, upgraded, each allocates virtual memory and runs background processes thereby wasting resources. Oracle 12c offers another possibility for virtualization, providing isolation at the database level: the multitenant container database holding pluggable databases. 2. What ? Pluggable databases are logical units inside a multitenant container database, which consists of one multitenant container database and up to 252 pluggable databases. The SGA is shared as are the background processes. The multitenant container database holds metadata information common for pluggable databases inside the System and the Sysaux tablespace, and there is just one Undo tablespace. The pluggable databases have smaller System and Sysaux tablespaces, containing just their 'personal' metadata. New data dictionary views will make the information available either on pdb (dba_views) or container level (cdb_views). There are local users, which are known in specific pluggable databases and common users known in all containers. Pluggable databases can be easily plugged to another multitenant container database and converted from a non-CDB. They can undergo point in time recovery. 3. How ? Creating a multitenant container database can be done using the database configuration assistant: There you find the new option: Create as Container Database. If you prefer ‚hand made‘ databases you can execute the command from a instance in nomount state: CREATE DATABASE cdb1 ENABLE PLUGGABLE DATABASE …. And of course this can also be achieved through Enterprise Manager Cloud. A freshly created multitenant container database consists of two containers: the root container as the 'rack' and a seed container, a template for future pluggable databases. There are 4 ways to create other pluggable databases: 1. Create an empty pdb from seed 2. Plug in a non-CDB 3. Move a pdb from another pdb 4. Copy a pdb from another pdb We will discuss option2: how to plug in a non_CDB into a multitenant container database. Three different methods are available : 1. Create an empty pdb and use Datapump in traditional export/import mode or with Transportable Tablespace or Database mode. This method is suitable for pre 12c databases. 2. Create an empty pdb and use GoldenGate replication. When the pdb catches up with the non-CDB, you fail over to the pdb. 3. Databases of Version 12c or higher can be plugged in with the help of the new dbms_pdb Package. This is a demonstration for method 3: Step1: Connect to the non-CDB to be plugged in and create an xml File with description of the database. The xml file is written to $ORACLE_HOME/dbs per default and contains mainly information about the datafiles. Step 2: Check if the non-CDB is pluggable in the multitenant container database: Step 3: Create the pluggable database, connected to the Multitenant container database. With nocopy option the files will be reused, but the tempfile is created anew: A service is created and registered automatically with the listener: Step 4: Delete unnecessary metadata from PDB SYSTEM tablespace: To connect to newly created pdb, edit tnsnames.ora and add entry for new pdb. Connect to plugged-in non_CDB and clean up Data Dictionary to remove entries now maintained in multitenant container database. As all kept objects have to be recompiled it will take a few minutes. Step 5: The plugged-in database will be automatically synchronised by creating common users and roles when opened the first time in read write mode. Step 6: Verify tablespaces and users: There is only one local tablespace (users) and one local user (scott) in the plugged-in non_CDB pdb_orcl. This method of creating plugged_in non_CDB from is fast and easy for 12c databases. The method for deplugging a pluggable database from a CDB is to create a new non_CDB and use the the new full transportable feature of Datapump and drop the pluggable database. About the Author: Gerlinde has been working for Oracle University Germany as one of our Principal Instructors for over 14 years. She started with Oracle 7 and became an Oracle Certified Master for Oracle 10g and 11c. She is a specialist in Database Core Technologies, with profound knowledge in Backup & Recovery, Performance Tuning for DBAs and Application Developers, Datawarehouse Administration, Data Guard and Real Application Clusters.

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  • DNASTREAM’s RapidLaunch Oracle Accelerate solution for RightNow

    - by Richard Lefebvre
    The Oracle RightNow Accelerate solution from DNASTREAM allows each Customer to enjoy quicker deployment and earlier time to benefits from this SAAS Customer Experience solution. At the start of the project, a full suite of E-Learning simulations & materials is provided by DNASTREAM to match the customer’s processes. This RapidLaunch content library for RightNow can be leveraged by our customers early in their project implementations bringing significant cost efficiencies, time reduction and improved user adoption to their project roll outs. Solution Profile: This Oracle Accelerate solution is based on Oracle RightNow CX that includes Content management, Contact management, Incident management, Customer Portal, Closed incident Survey, Standard reports. As an additional option there is available the Oracle RightNow CX Chat implementation. For more information about RightNow and the DNASTREAM Accelerate solution, visit the Oracle Accelerate microsite or contact www.dnastream.com

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  • Social Business Forum Milano: Day 2

    - by me
    @YourService. The business world has flipped and small business can capitalize  by Frank Eliason (twitter: @FrankEliason ) Technology and social media tools have made it easier than ever for companies to communicate with consumers. They can listen and join in on conversations, solve problems, get instant feedback about their products and services, and more. So why, then, are most companies not doing this? Instead, it seems as if customer service is at an all time low, and that the few companies who are choosing to focus on their customers are experiencing a great competitive advantage. At Your Service explains the importance of refocusing your business on your customers and your employees, and just how to do it. Explains how to create a culture of empowered employees who understand the value of a great customer experience Advises on the need to communicate that experience to their customers and potential customers Frank Eliason, recognized by BusinessWeek as the 'most famous customer service manager in the US, possibly in the world,' has built a reputation for helping large businesses improve the way they connect with customers and enhance their relationships Quotes from the Audience: Bertrand Duperrin ?@bduperrin social service is not about shutting up the loudest cutsomers ! #sbf12 @frankeliason Paolo Pelloni ?@paolopelloniGautam Ghosh ?@GautamGhosh RT @cecildijoux: #sbf12 @frankeliason you need to change things and fix the approach it's not about social media it's about driving change  Peter H. Reiser ?@peterreiser #sbf12 Company Experience = Product Experience + Customer Interactions + Employee Experience @yourservice Engage or lose! Socialize, mobilize, conversify: engage your employees to improve business performance Christian Finn (twitter: @cfinn) First Christian was presenting the flying monkey   Then he outlined the four principals to fix the Intranet: 1. Socalize the Intranet 2. Get Thee to a Single Repository 3. Mobilize the Intranet 4. Conversationalize Your Processes Quotes from the Audience: Oscar Berg ?@oscarberg Engaged employees think their work bring out the best of their ideas @cfinn #sbf12 http://pic.twitter.com/68eddp48 John Stepper ?@johnstepper I like @cfinn's "conversify your processes" A nice related concept to "narrating your work", part of working out loud. http://johnstepper.com/2012/05/26/working-out-loud-your-personal-content-strategy/ Oscar Berg ?@oscarberg Organizations are talent markets - socializing your intranet makes this market function better @cfinn #sbf12 For profit, productivity, and personal benefit: creating a collaborative culture at Deutsche Bank John Stepper (twitter:@johnstepper) Driving adoption of collaboration + social media platforms at Deutsche Bank. John shared some great best practices on how to deploy an enterprise wide  community model  in a large company. He started with the most important question What is the commercial value of adding social ? Then he talked about the success of Community of Practices deployment and outlined some key use cases including the relevant measures to proof the ROI of the investment. Examples:  Community of practice -> measure: systematic collection of value stories  Self-service website  -> measure: based on representative models Optimizing asset inventory - > measure: Actual counts  This use case was particular interesting.  It is a crowd sourced spending/saving of infrastructure model.  User can cancel IT services they don't need (as example Software xx).  5% of the saving goes to social responsibility projects. The John outlined some  best practices on how to address the WIIFM (What's In It For Me) question of the individual users:  - change from hierarchy to graph -  working out loud = observable work + narrating  your work  - add social skills to career objectives - example: building a purposeful social network course/training as part of the job development curriculum And last but not least John gave some important tips on how to get senior management buy-in by establishing management sponsored division level collaboration boards which defines clear uses cases and measures. This divisional use cases are then implemented using a common social platform.  Thanks John - I learned a lot from your presentation!   Quotes from the Audience: Ana Silva ?@AnaDataGirl #sbf12 what's in it for individuals at Deutsche Bank? Shapping their reputations in a big org says @johnstepper #e20Ana Silva ?@AnaDataGirl Any reason why not? MT @magatorlibero #sbf12 is Deutsche B. experience on applying social inside company applicable to Italian people? Oscar Berg ?@oscarberg Your career is not a ladder, it is a network that opens up opportunities - @johnstepper #sbf12 Oscar Berg ?@oscarberg @johnstepper: Institutionalizing collaboration is next - collaboration woven into the fabric of daily work #sbf12 Ana Silva ?@AnaDataGirl #sbf12 @johnstepper talking about how Deutsche Bank is using #socbiz to build purposeful CoP & save money

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  • Accessing Server-Side Data from Client Script: Using WCF Services with jQuery and the ASP.NET Ajax Library

    Today's websites commonly exchange information between the browser and the web server using Ajax techniques - the browser executes JavaScript code typically in response to the page loading or some user action. This JavaScript makes an asynchronous HTTP request to the server. which then processes the request and, perhaps, returns data that the browser can then seamlessly integrate into the web page. Two earlier articles - Accessing JSON Data From an ASP.NET Page Using jQuery and Using Ajax Web Services, Script References, and jQuery, looked at using both jQuery and the ASP.NET Ajax Library on the browser to initiate an Ajax request and both ASP.NET pages and Ajax Web Services as the entities on the web server responsible for servicing such Ajax requests. This article continues our examination of techniques for implementing lightweight Ajax scenarios in an ASP.NET website. Specifically, it examines how to use the Windows Communication Foundation, or WCF, to serve data from the web server and how to use both the ASP.NET Ajax Library and jQuery to consume such services from the client-side. Read on to learn more! Read More >

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  • Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

    - by Bakhtiyor
    I have mailserver configure using dovecot+postfix+mysql and it was runnig fine in the server(Ubuntu Server). But during last week it stopped working correctly. It doesn't send email. When I try to telnet localhost smtp I'm connecting successfully but when I do mail from:<[email protected]> and hit Enter it hangs on, nothing happen. Having reviewed /var/log/mail.log file I've found out that probably(99%) the problem is on postfix when it is trying to connect to MySQL server. If you see the log file given below you can see that it says Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2). Nov 14 21:54:36 ns1 dovecot: dovecot: Killed with signal 15 (by pid=7731 uid=0 code=kill) Nov 14 21:54:36 ns1 dovecot: Dovecot v1.2.9 starting up (core dumps disabled) Nov 14 21:54:36 ns1 dovecot: auth-worker(default): mysql: Connected to localhost (mailserver) Nov 14 21:54:44 ns1 postfix/postfix-script[7753]: refreshing the Postfix mail system Nov 14 21:54:44 ns1 postfix/master[1670]: reload -- version 2.7.0, configuration /etc/postfix Nov 14 21:54:52 ns1 postfix/trivial-rewrite[7759]: warning: connect to mysql server localhost: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) Nov 14 21:54:52 ns1 postfix/trivial-rewrite[7759]: fatal: mysql:/etc/postfix/mysql-virtual-alias-maps.cf(0,lock|fold_fix): table lookup problem Nov 14 21:54:53 ns1 postfix/master[1670]: warning: process /usr/lib/postfix/trivial-rewrite pid 7759 exit status 1 Nov 14 21:54:53 ns1 postfix/cleanup[7397]: warning: problem talking to service rewrite: Connection reset by peer Nov 14 21:54:53 ns1 postfix/master[1670]: warning: /usr/lib/postfix/trivial-rewrite: bad command startup -- throttling Nov 14 21:54:53 ns1 postfix/smtpd[7071]: warning: problem talking to service rewrite: Success I tried netstat -ln | grep mysql and it returns unix 2 [ ACC ] STREAM LISTENING 5817 /var/run/mysqld/mysqld.sock. The content of /etc/postfix/mysql-virtual-alias-maps.cf file is here: user = stevejobs password = apple hosts = localhost dbname = mailserver query = SELECT destination FROM virtual_aliases WHERE source='%s' Here I tried to change hosts = 127.0.0.1 but it says warning: connect to mysql server 127.0.0.1: Can't connect to MySQL server on '127.0.0.1' (110) So, I am lost and don't know where else to change in order to solve the problem. Any help would be appreciated highly. Thank you.

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  • .NET 4.5 now supported with Windows Azure Web Sites

    - by ScottGu
    This week we finished rolling out .NET 4.5 to all of our Windows Azure Web Site clusters.  This means that you can now publish and run ASP.NET 4.5 based apps, and use  .NET 4.5 libraries and features (for example: async and the new spatial data-type support in EF), with Windows Azure Web Sites.  This enables a ton of really great capabilities - check out Scott Hanselman’s great post of videos that highlight a few of them. Visual Studio 2012 includes built-in publishing support to Windows Azure, which makes it really easy to publish and deploy .NET 4.5 based sites within Visual Studio (you can deploy both apps + databases).  With the Migrations feature of EF Code First you can also do incremental database schema updates as part of publishing (which enables a really slick automated deployment workflow). Each Windows Azure account is eligible to host 10 free web-sites using our free-tier.  If you don’t already have a Windows Azure account, you can sign-up for a free trial and start using them today. In the next few days we’ll also be releasing support for .NET 4.5 and Windows Server 2012 with Windows Azure Cloud Services (Web and Worker Roles) – together with some great new Azure SDK enhancements.  Keep an eye out on my blog for details about these soon. Hope this helps, Scott P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu

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  • Partition Wise Joins

    - by jean-pierre.dijcks
    Some say they are the holy grail of parallel computing and PWJ is the basis for a shared nothing system and the only join method that is available on a shared nothing system (yes this is oversimplified!). The magic in Oracle is of course that is one of many ways to join data. And yes, this is the old flexibility vs. simplicity discussion all over, so I won't go there... the point is that what you must do in a shared nothing system, you can do in Oracle with the same speed and methods. The Theory A partition wise join is a join between (for simplicity) two tables that are partitioned on the same column with the same partitioning scheme. In shared nothing this is effectively hard partitioning locating data on a specific node / storage combo. In Oracle is is logical partitioning. If you now join the two tables on that partitioned column you can break up the join in smaller joins exactly along the partitions in the data. Since they are partitioned (grouped) into the same buckets, all values required to do the join live in the equivalent bucket on either sides. No need to talk to anyone else, no need to redistribute data to anyone else... in short, the optimal join method for parallel processing of two large data sets. PWJ's in Oracle Since we do not hard partition the data across nodes in Oracle we use the Partitioning option to the database to create the buckets, then set the Degree of Parallelism (or run Auto DOP - see here) and get our PWJs. The main questions always asked are: How many partitions should I create? What should my DOP be? In a shared nothing system the answer is of course, as many partitions as there are nodes which will be your DOP. In Oracle we do want you to look at the workload and concurrency, and once you know that to understand the following rules of thumb. Within Oracle we have more ways of joining of data, so it is important to understand some of the PWJ ideas and what it means if you have an uneven distribution across processes. Assume we have a simple scenario where we partition the data on a hash key resulting in 4 hash partitions (H1 -H4). We have 2 parallel processes that have been tasked with reading these partitions (P1 - P2). The work is evenly divided assuming the partitions are the same size and we can scan this in time t1 as shown below. Now assume that we have changed the system and have a 5th partition but still have our 2 workers P1 and P2. The time it takes is actually 50% more assuming the 5th partition has the same size as the original H1 - H4 partitions. In other words to scan these 5 partitions, the time t2 it takes is not 1/5th more expensive, it is a lot more expensive and some other join plans may now start to look exciting to the optimizer. Just to post the disclaimer, it is not as simple as I state it here, but you get the idea on how much more expensive this plan may now look... Based on this little example there are a few rules of thumb to follow to get the partition wise joins. First, choose a DOP that is a factor of two (2). So always choose something like 2, 4, 8, 16, 32 and so on... Second, choose a number of partitions that is larger or equal to 2* DOP. Third, make sure the number of partitions is divisible through 2 without orphans. This is also known as an even number... Fourth, choose a stable partition count strategy, which is typically hash, which can be a sub partitioning strategy rather than the main strategy (range - hash is a popular one). Fifth, make sure you do this on the join key between the two large tables you want to join (and this should be the obvious one...). Translating this into an example: DOP = 8 (determined based on concurrency or by using Auto DOP with a cap due to concurrency) says that the number of partitions >= 16. Number of hash (sub) partitions = 32, which gives each process four partitions to work on. This number is somewhat arbitrary and depends on your data and system. In this case my main reasoning is that if you get more room on the box you can easily move the DOP for the query to 16 without repartitioning... and of course it makes for no leftovers on the table... And yes, we recommend up-to-date statistics. And before you start complaining, do read this post on a cool way to do stats in 11.

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  • Not to miss! Today’s web seminar on content integration with Oracle Apps

    - by Lance Shaw
    Hello everyone.  The first web seminar in a three-part series kicks off later today, focused on the value of delivering and controlling the flow of content in the context of your most critical business applications.   If you are using Oracle E-Business Suite, PeopleSoft Enterprise, JD Edwards EnterpriseOne or Siebel CRM, we heartily recommend you investigate the value of centralizing the delivery of scanned images, forms, faxes and digital documents within those processes.  The improvements in efficiency and productivity can result in some impressive cost savings. One customer recently reported that they had realized an impressive ROI of 180% and that the investment in this new technology had paid for itself in a mere 6 months.  We hope you can spare some time today to join us at 1pm Eastern Time / 10am Pacific Time / 18:00 GMT. We think you will find it time well spent.   Click here to attend.  We look forward to seeing you there!

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  • Derek Brink shares "Worst Practices in IT Security"

    - by Darin Pendergraft
    Derek Brink is Vice President and Research Fellow in IT Security for the Aberdeen Group.  He has established himself as an IT Security Expert having a long and impressive career with companies and organizations ranging from RSA, Sun, HP, the PKI Forum and the Central Intelligence Agency.  So shouldn't he be talking about "Best Practices in IT Security?" In his latest blog he talks about the thought processes that drive the wrong behavior, and very cleverly shows how that incorrect thinking exposes weaknesses in our IT environments. Check out his latest blog post titled: "The Screwtape CISO: Memo #1 (silos, stovepipes and point solutions)"

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  • Fastest way to document software architecture and design

    - by Karsten
    We are a small team of 5 developers and I'm looking for some great advices about how to document the software architecture and design. I'm going for the sweet spot, where the time invested pays off. I don't want to use more time documenting than necessary. I'll quickly give you my thoughts. What are the diagrams I should made? I'm thinking an overall diagram showing the various applications and services. And then some sequence diagrams showing the most important or complicated processes. About the code it self, I really don't see much value in describing or making diagrams for the code outside the .cs files them self. About text documents, I'm a bit uncertain about when to put down on paper. Most developers don't like to either write or read long documents.

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  • Question to ask during interviews to get a sense of the development process

    - by davidk01
    I just watched a presentation about simplicity by Rich Hickey at InfoQ where he goes over the constructs programmers use to produce artifacts and how those constructs make various trade-offs when it comes to achieving simple artifacts. I think that most programmers would agree with a lot of what he says but at the end of the day I don't know how many development shops are actively practicing development processes and using tools that allow them to make simple artifacts. As an interview candidate I would like to work at a software development shop where producing simple artifacts is a top priority. What are some questions I can ask to figure out if the place that is interviewing me is actually such a place.

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  • Screen shots and documentation on the cheap

    - by Kyle Burns
    Occasionally I am surprised to open up my toolbox and find a great tool that I've had for years and never noticed.  The other day I had just such an experience with Windows Server 2008.  A co-worker of mine was squinting to read to screenshots that he had taken using the "Print Screen, paste" method in WordPad and asked me if there was a better tool available at a reasonable cost.  My first instinct was to take a look at CamStudio for him, but I also knew that he had an immediate need to take some more screenshots, so I decided to check and see if the Snipping Tool found in Windows 7 is also available in Windows Server 2008.  I clicked the Start button and typed “snip” into the search bar and while the Snipping Tool did not come up, a Control Panel item labeled “Record steps to reproduce a problem” did. The application behind the Control Panel entry was “Problem Steps Recorder” (PSR.exe) and I have confirmed that it is available in Windows 7 and Windows Server 2008 R2 but have not checked other platforms.  It presents a pretty minimal and intuitive interface in providing a “Start Record”, “Stop Record”, and “Add Comment” button.  The “Start Record” button shockingly starts recording and, sure enough, the “Stop Record” button stops recording.  The “Add Comment” button prompts for a comment and for you to highlight the area of the screen to which your comment is related.  Once you’re done recording, the tool outputs an MHT file packaged in a ZIP archive.  This file contains a series of screen shots depicting the user’s interactions and giving timestamps and descriptive text (such as “User left click on “Test” in “My Page – Windows Internet Explorer”) as well as the comments they made along the way and some diagnostics about the applications captured. The Problem Steps Recorder looks like a simple solution to the most common of my needs for documentation that can turn “I can’t understand how to make it do what you’re reporting” to “Oh, I see what you’re talking about and will fix it right away”.  I you’re like me and haven’t yet discovered this tool give it a whirl and see for yourself.

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  • .NET 4.5 agora é suportado nos Web Sites da Windows Azure

    - by Leniel Macaferi
    Nesta semana terminamos de instalar o .NET 4.5 em todos os nossos clusters que hospedam os Web Sistes da Windows Azure. Isso significa que agora você pode publicar e executar aplicações baseadas na ASP.NET 4.5, e usar as bibliotecas e recursos do .NET 4.5 (por exemplo: async e o novo suporte para dados espaciais (spatial data type no Entity Framework), com os Web Sites da Windows Azure. Isso permite uma infinidade de ótimos recursos - confira o post de Scott Hanselman com vídeos (em Inglês) que destacam alguns destes recursos. O Visual Studio 2012 inclui suporte nativo para publicar uma aplicação na Windows Azure, o que torna muito fácil publicar e implantar sites baseados no .NET 4.5 a partir do Visual Studio (você pode publicar aplicações + bancos de dados). Com o recurso de Migrações da abordagem Entity Framework Code First você também pode fazer atualizações incrementais do esquema do banco de dados, como parte do processo de publicação (o que permite um fluxo de trabalho de publicação extremamente automatizado). Cada conta da Windows Azure é elegível para hospedar até 10 web-sites gratuitamente, usando nossa camada Escalonável "Compartilhada". Se você ainda não tem uma conta da Windows Azure, você pode inscrever-se em um teste gratuito para começar a usar estes recursos hoje mesmo. Nos próximos dias, vamos também lançar o suporte para .NET 4.5 e Windows Server 2012 para os Serviços da Nuvem da Windows Azure (Web e Worker Roles) - juntamente com algumas novas e ótimas melhorias para o SDK da Windows Azure. Fique de olho no meu blog para mais informações sobre estes lançamentos em breve. Espero que ajude, - Scott PS Além do blog, eu também estou agora utilizando o Twitter para atualizações rápidas e para compartilhar links. Siga-me em: twitter.com/ScottGu Texto traduzido do post original por Leniel Macaferi.

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  • Oracle Consulting North America is now live on PeopleSoft Services Procurement and PeopleSoft Resource Management

    - by Howard Shaw
    Last month, Oracle's own internal consulting group (OCS North America) went live on PeopleSoft Services Procurement and PeopleSoft Resource Management to manage all aspects of identifying, recruiting, and deploying billable subcontractors on North America Applications customer consulting projects. The primary goals were to enhance the subcontractor staffing process, improve operational and informational processes, and improve collaboration between the Oracle NA Consulting Subcontractor Program and subcontractor suppliers. Over 200 registered external suppliers access the tool, review open needs and competitively bid their resources to work on NA Applications projects. This implementation highlights the usage of Oracle’s own solutions to streamline and enhance business operations, as the PeopleSoft 9.1 applications (Services Procurement and Resource Management) were deployed using Sun hardware, Oracle Enterprise Linux, and Oracle Virtual Machines.For more information, please navigate to the following web pages: PeopleSoft Services Procurement PeopleSoft Resource Management

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  • Interview: how to ask development process/culture related questions

    - by davidk01
    I just watched a presentation about simplicity by Rich Hickey at InfoQ where he goes over the constructs programmers use to produce artifacts and how those constructs make various trade-offs when it comes to achieving simple artifacts. I think that most programmers would agree with a lot of what he says but at the end of the day I don't know how many development shops are actively practicing development processes and using tools that allow them to make simple artifacts. As an interview candidate I would like to work at a software development shop where producing simple artifacts is a top priority. What are some questions I can ask to figure out if the place that is interviewing me is actually such a place.

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  • Essential management tools for a small/medium software development shop

    - by mikera
    I've recently started work with an organisation that is rapidly expanding and is recruiting or growing several development teams (including two web-based products and a data warehouse/BI team). They are basically working to agile methodologies but haven't formalised a standard way of working yet. Despite the fact that it is early days, I've been surprised by the lack of tools being used to manage the development processes (e.g. no issue tracker, no tool to manage the product backlog etc.) Although it's not my primary responsibility, I'd like to help them out with some recommendations on the most important tools they should get in place. What are the 3-5 top priority tools to establish for management of a good development shop? Why are they necessary? How do they improve the software development process, and how do I justify them to my bosses?

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  • Oracle-AmberPoint Webcast: Learn How Your Business Can Profit from the Combination

    - by jyothi.swaroop
    With the recent acquisition of AmberPoint, Oracle now offers an enhanced end-to-end SOA solution that features runtime governance, business transaction management, and cross-platform management capabilities. Put that solution to work and your business can achieve lower costs of implementation and higher profit. Join Ed Horst, Vice President, Oracle (former CMO of AmberPoint), and Ashish Mohindroo, Senior Director, Product Marketing, Oracle, as they discuss in this live Webcast the customer advantages of the Oracle and AmberPoint combination. Learn how our SOA solutions with AmberPoint capabilities can help you: Achieve more agility and visibility into your business processes Increase control and performance of critical applications Improve performance and reduce IT costs to benefit your bottom line Register for the Live Webcast Event Date: Thursday, May 20, 2010 Time: 10 a.m. PT/1 p.m. ET

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  • Ubuntu for Android on the ASUS Transformer Prime

    - by sola
    I would like to use Ubuntu on my Transformer Prime in parallel with Android (not as a dual booting solution, I want to be able to switch between them instantaniously). I am aware of the traditional chrooting/VNC solution but I heard that it performs very poorly so I would like to use Ubuntu For Android (UFA) which has been announced recently by Canonical. That looks like a polished, highly integrated solution for Android devices. The Prime would be the ideal device for Ubuntu For Android since it has a powerful processor (Tegra3) capable of running a lot of processes in parallel on its 4 cores. Does anyone know if Canonical or anybody else is working on supporting UFA on the ASUS Transformer Prime? As far as I understand, the X11 driver is available for Tegra3 so, the biggest hurdle may be easily overcome.

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