custom event - Page 966

USB drives not recognized all of a sudden (module usb_storage not loading)

- by Siddharth

I am very close to the solution, just need to know how to get usb-storage to load I have tried most of the advice on askubuntu and other sites, usb_storage enable to fdisk -l. But I am unable to find steps to get it working again. sudo lsusb results Bus.... skipped 4 lines Bus 004 Device 002: ID 413c:3012 Dell Computer Corp. Optical Wheel Mouse Bus 005 Device 002: ID 413c:2105 Dell Computer Corp. Model L100 Keyboard Bus 001 Device 005: ID 8564:1000 sudo dmseg | tail reports [ 69.567948] usb 1-4: USB disconnect, device number 4 [ 74.084041] usb 1-6: new high-speed USB device number 5 using ehci_hcd [ 74.240484] Initializing USB Mass Storage driver... [ 74.256033] scsi5 : usb-storage 1-6:1.0 [ 74.256145] usbcore: registered new interface driver usb-storage [ 74.256147] USB Mass Storage support registered. [ 74.257290] usbcore: deregistering interface driver usb-storage fdisk -l reports Device Boot Start End Blocks Id System /dev/sda1 * 2048 972656639 486327296 83 Linux /dev/sda2 972658686 976771071 2056193 5 Extended /dev/sda5 972658688 976771071 2056192 82 Linux swap / Solaris I think I need steps to install and get usb_storage module working. Edit : I tried sudo modprobe -v usb-storage reports sudo modprobe -v usb-storage insmod /lib/modules/3.2.0-48-generic-pae/kernel/drivers/usb/storage/usb-storage.ko Edit : jsiddharth@siddharth-desktop:~$ sudo udevadm monitor --udev monitor will print the received events for: UDEV - the event which udev sends out after rule processing UDEV [4757.144372] add /module/usb_storage (module) UDEV [4757.146558] remove /module/usb_storage (module) UDEV [4757.148707] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6 (usb) UDEV [4757.149699] add /bus/usb/drivers/usb-storage (drivers) UDEV [4757.151214] remove /bus/usb/drivers/usb-storage (drivers) UDEV [4757.156873] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0 (usb) UDEV [4757.160903] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9 (scsi) UDEV [4757.164672] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9/scsi_host/host9 (scsi_host) UDEV [4757.165163] remove /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9/scsi_host/host9 (scsi_host) UDEV [4757.165440] remove /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9 (scsi) Narrowing down more : Seems like I need usb_storage to load as a module jsiddharth@siddharth-desktop:~$ lsmod | grep usb usbserial 37201 0 usbhid 41937 0 hid 77428 1 usbhid Still no usb driver mounted. Nor does a device show up in /dev. Any step by step process to debug and fix this will be really helpful.

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MySQL Connect: Interview with Tomas Ulin

- by Bertrand Matthelié

The MySQL Connect conference is taking place September 29-30 in San Francisco. We asked a few questions about the event to Oracle’s VP of MySQL Engineering Tomas Ulin. Hi Tomas, to start with, what is MySQL Connect? A: MySQL Connect is a conference delivered by Oracle, with and for the MySQL Community. We’ll have over 60 technical breakout sessions, Birds-of-a-feather sessions and Hands-On labs running throughout the two days, plus the keynotes. So it’s a fantastic opportunity to learn a huge amount in only two days, and to network with Oracle engineers, users, customers and partners. When will the program be available online? A: The call for papers ended May 6 and we got an amazing response. The content committee has been working hard to build a great program, and the content catalog will be available by mid-June. Will Oracle MySQL engineers developing and supporting the products be there? A: Absolutely. And they’ll be available during the whole conference to answer questions. What do you plan to cover in your keynote? A: That’s a secret...:). Oracle is driving a lot of MySQL innovations and I will spend time on the latest developments, as well as help folks understand where we are going. What should attendees definitely not miss? A: We’ll have so many great sessions that the list could be long…but I also think the Saturday eve reception should not be missed. It’s always a lot of fun to meet so many MySQL users and have passionate discussions in a relaxed setting. What do you personally look forward to? A: Getting to meet the MySQL users and customers is probably most rewarding, as well as getting the chance to showcase the latest and greatest in our MySQL products. The development is so rapid that there are always new and exciting things to talk about. Oh, and I’ve also been told that there will be a game zone including Guitar Hero...:) In summary, why should people attend MySQL Connect? A: During two days, you’ll hang out with MySQL experts. You’ll learn a lot, you’ll meet the Oracle engineers developing and supporting the MySQL products, you’ll hear from customers using MySQL in a wide variety of applications and share your experiences with them, and you’ll have a lot of fun! Thank you Tomas! MySQL Connect registration is open – Register Now and you’ll save US$500 with the early bird discount! Interested in Sponsorship and Exhibit opportunities? You will find more information here.

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Android - passing data between Activities

- by Bill Osuch

(To follow along with this, you should understand the basics of starting new activities: Link ) The easiest way to pass data from one activity to another is to create your own custom bundle and pass it to your new class. First, create two new activities called Search and SearchResults (make sure you add the second one you create to the AndroidManifest.xml file!), and create xml layout files for each. Search's file should look like this: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Name:"/> <EditText android:id="@+id/edittext" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="ID Number:"/> <EditText android:id="@+id/edittext2" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <Button android:id="@+id/btnSearch" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Search" /> </LinearLayout> and SearchResult's should look like this: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> <TextView android:id="@+id/txtName" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <TextView android:id="@+id/txtState" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="No data"/> </LinearLayout> Next, we'll override the OnCreate method of Search: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.search); Button search = (Button) findViewById(R.id.btnSearch); search.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { Intent intent = new Intent(Search.this, SearchResults.class); Bundle b = new Bundle(); EditText txt1 = (EditText) findViewById(R.id.edittext); EditText txt2 = (EditText) findViewById(R.id.edittext2); b.putString("name", txt1.getText().toString()); b.putInt("state", Integer.parseInt(txt2.getText().toString())); //Add the set of extended data to the intent and start it intent.putExtras(b); startActivity(intent); } }); } This is very similar to the previous example, except here we're creating our own bundle, adding some key/value pairs to it, and adding it to the intent. Now, to retrieve the data, we just need to grab the Bundle that was passed to the new Activity and extract our values from it: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.search_results); Bundle b = getIntent().getExtras(); int value = b.getInt("state", 0); String name = b.getString("name"); TextView vw1 = (TextView) findViewById(R.id.txtName); TextView vw2 = (TextView) findViewById(R.id.txtState); vw1.setText("Name: " + name); vw2.setText("State: " + String.valueOf(value)); }

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Ongoing confusion about ivars and properties in objective C

- by Earl Grey

After almost 8 months being in ios programming, I am again confused about the right approach. Maybe it is not the language but some OOP principle I am confused about. I don't know.. I was trying C# a few years back. There were fields (private variables, private data in an object), there were getters and setters (methods which exposed something to the world) ,and properties which was THE exposed thing. I liked the elegance of the solution, for example there could be a class that would have a property called DailyRevenue...a float...but there was no private variable called dailyRevenue, there was only a field - an array of single transaction revenues...and the getter for DailyRevenue property calculated the revenue transparently. If somehow the internals of daily revenue calculation would change, it would not affect somebody who consumed my DailyRevenue property in any way, since he would be shielded from getter implementation. I understood that sometimes there was , and sometimes there wasn't a 1-1 relationship between fields and properties. depending on the requirements. It seemed ok in my opinion. And that properties are THE way to acces the data in object. I know the difference betweeen private, protected, and public keyword. Now lets get to objectiveC. On what factor should I base my decision about making someting only an ivar or making it as a property? Is the mental model the same as I describe above? I know that ivars are "protected" by default, not "private" asi in c#..But thats ok I think, no big deal for my presnet level of understanding the whole ios development. The point is ivars are not accesible from outside (given i don't make them public..but i won't). The thing that clouds my clear understanding is that I can have IBOutlets from ivars. Why am I seeing internal object data in the UI? *Why is it ok?* On the other hand, if I make an IBOutlet from property, and I do not make it readonly, anybody can change it. Is this ok too? Let's say I have a ParseManager object. This object would use a built in Foundation framework class called NSXMLParser. Obviously my ParseManager will utilize this nsxmlparser's capabilities but will also do some additional work. Now my question is, who should initialize this NSXMLParser object and in which way should I make a reference to it from the ParseManager object, when there is a need to parse something. A) the ParseManager -1) in its default init method (possible here ivar - or - ivar+ppty) -2) with lazyloading in getter (required a ppty here) B) Some other object - who will pass a reference to NSXMLParser object to the ParseManager object. -1) in some custom initializer (initWithParser:(NSXMLPArser *) parser) when creating the ParseManager object.. A1 - the problem is, we create a parser and waste memory while it is not yet needed. However, we can be sure that all methods that are part ot ParserManager object, can use the ivar safely, since it exists. A2 - the problem is, the nsxmlparser is exposed to outside world, although it could be read only. Would we want a parser to be exposed in some scenario? B1 - this could maybe be useful when we would want to use more types of parsers..i dont know... I understand that architectural requirements and and language is not the same. But clearly the two are in relation. How to get out of that mess of my? Please bear with me, I wasn't able to come up with a single ultimate question. And secondly, it's better to not scare me with some superadvanced newspeak that talks about some crazy internals (what the compiler does) and edge cases.

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2D Rendering with OpenGL ES 2.0 on Android (matrices not working)

- by TranquilMarmot

So I'm trying to render two moving quads, each at different locations. My shaders are as simple as possible (vertices are only transformed by the modelview-projection matrix, there's only one color). Whenever I try and render something, I only end up with slivers of color! I've only done work with 3D rendering in OpenGL before so I'm having issues with 2D stuff. Here's my basic rendering loop, simplified a bit (I'm using the Matrix manipulation methods provided by android.opengl.Matrix and program is a custom class I created that just calls GLES20.glUniformMatrix4fv()): Matrix.orthoM(projection, 0, 0, windowWidth, 0, windowHeight, -1, 1); program.setUniformMatrix4f("Projection", projection); At this point, I render the quads (this is repeated for each quad): Matrix.setIdentityM(modelview, 0); Matrix.translateM(modelview, 0, quadX, quadY, 0); program.setUniformMatrix4f("ModelView", modelview); quad.render(); // calls glDrawArrays and all I see is a sliver of the color each quad is! I'm at my wits end here, I've tried everything I can think of and I'm at the point where I'm screaming at my computer and tossing phones across the room. Anybody got any pointers? Am I using ortho wrong? I'm 100% sure I'm rendering everything at a Z value of 0. I tried using frustumM instead of orthoM, which made it so that I could see the quads but they would get totally skewed whenever they got moved, which makes sense if I correctly understand the way frustum works (it's more for 3D rendering, anyway). If it makes any difference, I defined my viewport with GLES20.glViewport(0, 0, windowWidth, windowHeight); Where windowWidth and windowHeight are the same values that are pased to orthoM It might be worth noting that the android.opengl.Matrix methods take in an offset as the second parameter so that multiple matrices can be shoved into one array, so that'w what the first 0 is for For reference, here's my vertex shader code: uniform mat4 ModelView; uniform mat4 Projection; attribute vec4 vPosition; void main() { mat4 mvp = Projection * ModelView; gl_Position = vPosition * mvp; } I tried swapping Projection * ModelView with ModelView * Projection but now I just get some really funky looking shapes... EDIT Okay, I finally figured it out! (Note: Since I'm new here (longtime lurker!) I can't answer my own question for a few hours, so as soon as I can I'll move this into an actual answer to the question) I changed Matrix.orthoM(projection, 0, 0, windowWidth, 0, windowHeight, -1, 1); to float ratio = windowWwidth / windowHeight; Matrix.orthoM(projection, 0, 0, ratio, 0, 1, -1, 1); I then had to scale my projection matrix to make it a lot smaller with Matrix.scaleM(projection, 0, 0.05f, 0.05f, 1.0f);. I then added an offset to the modelview translations to simulate a camera so that I could center on my action (so Matrix.translateM(modelview, 0, quadX, quadY, 0); was changed to Matrix.translateM(modelview, 0, quadX + camX, quadY + camY, 0);) Thanks for the help, all!

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Oracle Coherence 3.5 PreSales Boot Camp - Live Virtual Training (12-13/Mai/10)

- by Claudia Costa

Oracle Coherence is an in-memory data grid solution that enables organizations to predictably scale mission-critical applications by providing fast access to frequently used data. By automatically and dynamically partitioning data, Oracle Coherence ensures continuous data availability and transactional integrity, even in the event of a server failure. It provides organizations with a robust scale-out data abstraction layer that brokers the supply and demand of data between applications and data sources. Register today! What will we cover The Oracle Coherence 3.5 Boot Camp is a FREE workshop which provides a quick hands-on technical ramp up on Oracle Coherence Data Grid.The Boot Camp provides a product overview, positioning and demo, discussion of customer uses and hands on lab work. Participants will leave the Oracle Coherence Boot Camp with a solid understanding of the product and where and how to apply it.It will provide an overview of the product as well as hands-on lab work. • Architecting applications for scalability, availability, and performance • Introduction to Data Grids and Extreme Transaction Processing (XTP) • Coherence Case Studies • Oracle Coherence Product Demonstration • Coherence implementation strategies and architectural approaches • Coherence product features and APIs • Hands-on labs that will include product installation, configuration, sample applications, code examples, and more. Who should attend This boot camp is intended for prospective users and implementers of Oracle Coherence Data Grid or implementers that have had limited exposure to Coherence and seek to gain a Technical Overview of the product with hand on exercises. Ideal participants are Oracle partners (SIs and resellers) with backgrounds in business information systems and a clientele of customers with ongoing or prospective application and/or data grid initiatives. Alternatively, partners with the background described above and an interest in evolving their practice to a similar profile are suitable participants. Prerequisites and Workstation requirements There are no prerequisite classes for this Boot Camp. However, labs rely upon usage of the Java programming language. Therefore participants should be familiar with the Java language or similar Object Oriented programming languages. Additionally, students experience with enterprise data storage and manipulation is and knowledge of relevant concepts will benefit most from the boot camp. In order to attend this boot camp you need to have the necessary software installed on your laptop prior to attending the class. Please revise the Workstation Requirements page and register today! Agenda - May 12 - 8:30 May 13 - 12:30 *To view the full agenda and to register click here.

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What Would a CyberWar Do To Your Business?

- by Brian Dayton

In mid-February the Bipartisan Policy Center in the United States hosted Cyber ShockWave, a simulation of how the country might respond to a catastrophic cyber event. An attack takes place, they can't isolate where it came from or who did it, simulated press reports and market impacts...and the participants in the exercise have to brief the President and advise him/her on what to do. Last week, Former Department of Homeland Security Secretary Michael Chertoff who participated in the exercise summarized his findings in Federal Computer Weekly. The article, given FCW's readership and the topic is obviously focused on the public sector and US Federal policies. However, it touches on some broader issues that impact the private sector as well--which are applicable to any government and country/region-- such as: · How would the US (or any) government collaborate to identify and defeat such an attack? Chertoff calls this out as a current gap. How do the public and private sector collaborate today? How would the massive and disparate collection of agencies and companies act together in a crunch? · What would the impact on industries and global economies be? Chertoff, and a companion article in Government Computer News, only touch briefly on the subject--focusing on the impact on capital markets. "There's no question this has a disastrous impact on the economy," said Stephen Friedman, former director of the National Economic Council under President George W. Bush who played the role of treasury secretary. "You have financial markets shut down at this point, ordinary transactions are dramatically depleted, there's no question that this has a major impact on consumer confidence." That Got Me Thinking · How would it impact Oracle's customers? I know they have business continuity plans--is this one of their scenarios? What if it's not? How would it impact manufacturing lines, ATM networks, customer call centers... · How would it impact me and the companies I rely on? The supermarket down the street, my Internet Service Provider, the service station where I bought gas last night. I sure don't have any answers, and neither do Chertoff or the participants in the exercise. "I have to tell you that ... we are operating in a bit of unchartered territory." said Jamie Gorelick, a former deputy attorney general who played the role of attorney general in the exercise. But it is a good thing that governments and businesses are considering this scenario and doing what they can to prevent it from happening.

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Why You Should Attend MySQL Connect, and Register Now

- by Bertrand Matthelié

MySQL Connect is taking place on September 29 and 30 in San Francisco. The early bird discount enabling you to save US$ 500 is only running for a few more days, until July 13. Are you still wondering if you should sign up? Here are 10 reasons why you definitely should: Learn from other companies how they tackled similar challenges to the ones you’re facing. Find out what they learned along the way, and how you can save time, money and a lot of troubles by avoiding repeating the same mistakes and applying the best practices they’ve developed. You’ll get the chance to hear from organizations including PayPal, Verizon, Twitter, Facebook, Ticketmaster, Ning, Mozilla, CERN, Yahoo! and more! Don’t miss this unique opportunity to meet the engineers developing and supporting the MySQL products in a single location. You’ll be able to ask them all your questions, which can represent a huge time and money saver. Acquire detailed knowledge about InnoDB, the MySQL Optimizer, High Availability strategies, improving performance and scalability, enhancing security and numerous other topics. You’ll hear it straight "from the horse’s mouth" as well as from other MySQL experts in the ecosystem. Get a better understanding about Oracle’s MySQL strategy and about the MySQL roadmap, so you can better plan where to use the MySQL database and MySQL Cluster for your next web, cloud-based and other applications. Get hands-on experience about improving performance with the MySQL Performance Schema, about using MySQL Utilities, MySQL Cluster and a lot more with eight different Hands-On Labs. Express your ideas, engage into discussions and help influence the MySQL roadmap during Birds-of-a-feather sessions about replication, backup, query optimizations and other topics. Meet partners and learn about third party tools that could be useful in your architecture. Immerse yourself into the MySQL universe and hang out with MySQL experts for two days. The discussions as well as the relationships you will create can be priceless and help you execute on your next projects in a much better and faster way. Register Now to save US$500 by taking advantage of the Early bird discount running until July 13. We’ll have parallel tracks so you should consider sending a few team members to make the most of the event. Are you attending or planning to attend Oracle OpenWorld or JavaOne? You can add MySQL Connect to your registration for only US$100! Finally, it’s always a lot of fun to attend a MySQL conference. The passion and the energy are contagious…and you’ll likely get plenty of new ideas. You will find all information about the program in the MySQL Connect Content Catalog. We look forward to seeing you there! You can also read interviews with Tomas Ulin and Ronald Bradford about MySQL Connect. Sponsorship and exhibit opportunities are still available for the conference. You will find more information here.

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Design suggestions needed to create a MathBuilder framework

- by Darf Zon

Let explain what I'm trying to create. I'm creating a framework, the idea is to provide base classes to generate a math problem. Why do I need this framework? Because at first time, I realized when I create a new math problem I always do the same steps. Configuration settings such range numbers. For example if I'm developing multiplications, in beginner level only generate the first number between 2-5 or in advanced level, the first number will be between 6- 9, for example. Generate problem method. All the time I need to invoke a method like this to generate the problem. This one receives the configuration settings and generate the number according to them. And generate the object with the respective data. Validate the problem. Sometimes the problem generated is not valid. For example, supposed I'm creating fractions in most simplified, if I receive 2/4, the program should detect that this is not valid and must generate another like this one, 1/4. Load the view. All of them, have a custom view (please watch below the images). All of the problems must know how to CHECK if the user result is correct. All of this problems has answers. Some of them just require one answer, anothers may require more than one, so I guess a way to maintain flexibility to the developer has all the answers he wanna used. At the beginning I started using PRISM. Generate modules for each math problem was the idea and load it in the main system. I guess are the most important things of this idea. Let me showing some problems which I create in a WPF standalone program. Here I have a math problem about areas. When I generate the problem a set to the view the object and it draw it. In beginner level, I set in the configuration settings that just load square types. But in advance level, can load triangles and squares randomly. In this another, generate a binary problem like addition, subtraction, multiplication or division. Above just generate a single problem. The idea of this is to show a test o quiz, I mean get a worksheet (this I call as a collection of problems) where the user can answer it. I hope gets the idea with my ugly drawing. How to load this math problems? As I said above, I started using PRISM, and each module contains a math problem kind. This is a snapshot of my first demo. Below show the modules loaded, and center the respective configurations or levels. Until momment, I have no idea to start creating this software. I just know that I need a question | problem class, response class, user class. But I get lost about what properties should have to contain in it. Please give a little hand of this framework. I put much effort on this question, so if any isn't clear, let me know to clarify it.

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FairWarning Privacy Monitoring Solutions Rely on MySQL to Secure Patient Data

- by Rebecca Hansen

FairWarning® solutions have audited well over 120 billion events, each of which was processed and stored in a MySQL database. FairWarning is the world's leading supplier of privacy monitoring solutions for electronic health records, relied on by over 1,200 Hospitals and 5,000 Clinics to keep their patients' data safe. In January 2014, FairWarning was awarded the highest commendation in healthcare IT as the first ever Category Leader for Patient Privacy Monitoring in the "2013 Best in KLAS: Software & Services" report[1]. FairWarning has used MySQL as their solutions’ database from their start in 2005 to worldwide expansion and market leadership. FairWarning recently migrated their solutions from MyISAM to InnoDB and updated from MySQL 5.5 to 5.6. Following are some of benefits they’ve had as a result of those changes and reasons for their continued reliance on MySQL (from FairWarning MySQL Case Study). Scalability to Handle Terabytes of Data FairWarning's customers have a lot of data: On average, FairWarning customers receive over 700,000 events to be processed daily. Over 25% of their customers receive over 30 million events per day, which equates to over 1 billion events and nearly one terabyte (TB) of new data each month. Databases range in size from a few hundred GBs to 10+ TBs for enterprise deployments (data are rolled off after 13 months). Low or Zero Admin = Few DBAs "MySQL has not required a lot of administration. After it's been tuned, configured, and optimized for size on initial setup, we have very low administrative costs. I can scale and add more customers without adding DBAs. This has had a big, positive impact on our business.” - Chris Arnold, FairWarning Vice President of Product Management and Engineering. Performance Schema As the size of FairWarning's customers has increased, so have their tables and data volumes. MySQL 5.6’ new maintenance and management features have helped FairWarning keep up. In particular, MySQL 5.6 performance schema’s low-level metrics have provided critical insight into how the system is performing and why. Support for Mutli-CPU Threads MySQL 5.6' support for multiple concurrent CPU threads, and FairWarning's custom data loader allow multiple files to load into a single table simultaneously vs. one at a time. As a result, their data load time has been reduced by 500%. MySQL Enterprise Hot Backup Because hospitals and clinics never stop, FairWarning solutions can’t either. FairWarning changed from using mysqldump to MySQL Enterprise Hot Backup, which has reduced downtime, restore time, and storage requirements. For many of their larger customers, restore time has decreased by 80%. MySQL Enterprise Edition and Product Roadmap Provide Complete Solution "MySQL's product roadmap fully addresses our needs. We like the fact that MySQL Enterprise Edition has everything included; there's no need to purchase separate modules." - Chris Arnold Learn More>> FairWarning MySQL Case Study Why MySQL 5.6 is an Even Better Embedded Database for Your Products presentation Updating Your Products to MySQL 5.6, Best Practices for OEMs on-demand webinar (audio and / or slides + Q&A transcript) MyISAM to InnoDB – Why and How on-demand webinar (same stuff) Top 10 Reasons to Use MySQL as an Embedded Database white paper [1] 2013 Best in KLAS: Software & Services report, January, 2014. © 2014 KLAS Enterprises, LLC. All rights reserved.

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Starting to create a MathBuilder framework, help to start creating the design

- by Darf Zon

Let explain what I'm trying to create. I'm creating a framework, the idea is to provide base classes to generate a math problem. Why do I need this framework? Because at first time, I realized when I create a new math problem I always do the same steps. Configuration settings such range numbers. For example if I'm developing multiplications, in beginner level only generate the first number between 2-5 or in advanced level, the first number will be between 6- 9, for example. Generate problem method. All the time I need to invoke a method like this to generate the problem. This one receives the configuration settings and generate the number according to them. And generate the object with the respective data. Validate the problem. Sometimes the problem generated is not valid. For example, supposed I'm creating fractions in most simplified, if I receive 2/4, the program should detect that this is not valid and must generate another like this one, 1/4. Load the view. All of them, have a custom view (please watch below the images). All of the problems must know how to CHECK if the user result is correct. All of this problems has answers. Some of them just require one answer, anothers may require more than one, so I guess a way to maintain flexibility to the developer has all the answers he wanna used. At the beginning I started using PRISM. Generate modules for each math problem was the idea and load it in the main system. I guess are the most important things of this idea. Let me showing some problems which I create in a WPF standalone program. Here I have a math problem about areas. When I generate the problem a set to the view the object and it draw it. In beginner level, I set in the configuration settings that just load square types. But in advance level, can load triangles and squares randomly. In this another, generate a binary problem like addition, subtraction, multiplication or division. Above just generate a single problem. The idea of this is to show a test o quiz, I mean get a worksheet (this I call as a collection of problems) where the user can answer it. I hope gets the idea with my ugly drawing. How to load this math problems? As I said above, I started using PRISM, and each module contains a math problem kind. This is a snapshot of my first demo. Below show the modules loaded, and center the respective configurations or levels. Until momment, I have no idea to start creating this software. I just know that I need a question | problem class, response class, user class. But I get lost about what properties should have to contain in it. Please give a little hand of this framework. I put much effort on this question, so if any isn't clear, let me know to clarify it.

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Great ADF Content at Collaborate 12

- by Shay Shmeltzer

If you are attending the Collaborate 12 conference this month in Las Vegas and you are interested in Oracle ADF you are going to be very busy. There are more than 20 sessions covering ADF and a special Wednesday ADF Enterprise Methodology Group event focused on ADF. Session range from how to get started to deep technical dives and real world war stories of customers and their implementations. Also don't forget to drop by the Oracle ADF booth at the Oracle Demoground and say hello. Here is a quick list of session that list ADF as a keyword in their content: Sun. Apr. 22 9613 A Fusion Approach to Building Unified and Scalable Applications With Rich User Experience 1:00 pm - 2:00 pm Mon. Apr. 23 669 Fusion DBA Boot Camp: Tailoring Your Application to Customer Needs in a Upgrade-safe Way - Support in ADF and Fusion Apps 9:45 am - 10:45 am Mon. Apr. 23 438 Oracle Fusion Applications Security 9:45 am - 10:45 am Mon. Apr. 23 176 How to get started with Oracle ADF 12:15 pm - 12:45 pm Mon. Apr. 23 330 Fusion DBA Boot Camp: Implementing Self-Service Portals for Partners/Distributors Using EBS/WebCenter/Fusion Technologies 1:15 pm - 2:15 pm Mon. Apr. 23 288 Working with Portlets in ADF and Webcenter 2:30 pm - 3:30 pm Tue. Apr. 24 503 Who’s Converting My Portal? 2:00 pm - 3:00 pm Tue. Apr. 24 9370 Coexistence of Oracle E-Business Suite and Oracle Fusion Applications: Platform Perspective 2:00 pm - 3:00 pm Wed. Apr. 25 647 Developing Custom BI Solutions - OBIEE vs. Oracle Application Development Framework (ADF) 9:30 am - 10:30 am Wed. Apr. 25 173 ADF: A Path to the Future for Dinosaur Nerds 11:00 am - 12:00 pm Wed. Apr. 25 581 How Will You Build Your Next System? 11:00 am - 12:00 pm Wed. Apr. 25 10351 Integrating CRM On Demand With the E-Business Suite to Supercharge Your Sales Team 1:00 pm - 2:00 pm Wed. Apr. 25 9348 Mobile,ADF, Coherence and Live Data Streaming? A Herbalife Case Study 1:00 pm - 2:00 pm Wed. Apr. 25 566 Getting Started with ADF 1:00 pm - 2:00 pm Wed. Apr. 25 775 WebCenter Portal Template Design and Development Best Practices 1:00 pm - 2:00 pm Wed. Apr. 25 791 Surfacing Oracle Social Network into Your Business Applications 1:00 pm - 2:00 pm Wed. Apr. 25 9407 The Latest Oracle E-Business Suite Release User Interface and Usability Enhancements 1:00 pm - 2:00 pm Wed. Apr. 25 100080 Extending JD Edwards with Oracle ADF and Oracle SOA Suite 3:00 pm - 4:00 pm Wed. Apr. 25 172 JDeveloper ADF and the Oracle database – friends not foes 3:00 pm - 4:00 pm Wed. Apr. 25 595 Achieving Real-Time Social Collaboration in WebCenter 11g 3:00 pm - 4:00 pm Wed. Apr. 25 164 ADF + Faces: Do I Have to Write ANY Java code? 4:15 pm - 5:15 pm Thu. Apr. 26 257 Mobile App Development with Oracle ADF Mobile: develop once and for all 8:30 am - 9:30 am Thu. Apr. 26 177 Understanding Oracle ADF and its role in Oracle Fusion Middleware 9:45 am - 10:45 am Thu. Apr. 26 523 Making Next-Generation Mobile Apps With The Latest ADF Mobile Tools 9:45 am - 10:45 am Thu. Apr. 26 356 ADF Integration with WebCenter Content 11:00 am - 12:00 pm

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MvcExtensions - ActionFilter

- by kazimanzurrashid

One of the thing that people often complains is dependency injection in Action Filters. Since the standard way of applying action filters is to either decorate the Controller or the Action methods, there is no way you can inject dependencies in the action filter constructors. There are quite a few posts on this subject, which shows the property injection with a custom action invoker, but all of them suffers from the same small bug (you will find the BuildUp is called more than once if the filter implements multiple interface e.g. both IActionFilter and IResultFilter). The MvcExtensions supports both property injection as well as fluent filter configuration api. There are a number of benefits of this fluent filter configuration api over the regular attribute based filter decoration. You can pass your dependencies in the constructor rather than property. Lets say, you want to create an action filter which will update the User Last Activity Date, you can create a filter like the following: public class UpdateUserLastActivityAttribute : FilterAttribute, IResultFilter { public UpdateUserLastActivityAttribute(IUserService userService) { Check.Argument.IsNotNull(userService, "userService"); UserService = userService; } public IUserService UserService { get; private set; } public void OnResultExecuting(ResultExecutingContext filterContext) { // Do nothing, just sleep. } public void OnResultExecuted(ResultExecutedContext filterContext) { Check.Argument.IsNotNull(filterContext, "filterContext"); string userName = filterContext.HttpContext.User.Identity.IsAuthenticated ? filterContext.HttpContext.User.Identity.Name : null; if (!string.IsNullOrEmpty(userName)) { UserService.UpdateLastActivity(userName); } } } As you can see, it is nothing different than a regular filter except that we are passing the dependency in the constructor. Next, we have to configure this filter for which Controller/Action methods will execute: public class ConfigureFilters : ConfigureFiltersBase { protected override void Configure(IFilterRegistry registry) { registry.Register<HomeController, UpdateUserLastActivityAttribute>(); } } You can register more than one filter for the same Controller/Action Methods: registry.Register<HomeController, UpdateUserLastActivityAttribute, CompressAttribute>(); You can register the filters for a specific Action method instead of the whole controller: registry.Register<HomeController, UpdateUserLastActivityAttribute, CompressAttribute>(c => c.Index()); You can even set various properties of the filter: registry.Register<ControlPanelController, CustomAuthorizeAttribute>( attribute => { attribute.AllowedRole = Role.Administrator; }); The Fluent Filter registration also reduces the number of base controllers in your application. It is very common that we create a base controller and decorate it with action filters and then we create concrete controller(s) so that the base controllers action filters are also executed in the concrete controller. You can do the same with a single line statement with the fluent filter registration: Registering the Filters for All Controllers: registry.Register<ElmahHandleErrorAttribute>(new TypeCatalogBuilder().Add(GetType().Assembly).Include(type => typeof(Controller).IsAssignableFrom(type))); Registering Filters for selected Controllers: registry.Register<ElmahHandleErrorAttribute>(new TypeCatalogBuilder().Add(GetType().Assembly).Include(type => typeof(Controller).IsAssignableFrom(type) && (type.Name.StartsWith("Home") || type.Name.StartsWith("Post")))); You can also use the built-in filters in the fluent registration, for example: registry.Register<HomeController, OutputCacheAttribute>(attribute => { attribute.Duration = 60; }); With the fluent filter configuration you can even apply filters to controllers that source code is not available to you (may be the controller is a part of a third part component). That’s it for today, in the next post we will discuss about the Model binding support in MvcExtensions. So stay tuned.

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How to implement line of sight restriction in actionscript?

- by Michiel Standaert

I have a problem with a game i am programming. I am making some sort of security game and i would like to have some visual line of sight. The problem is that i can't restrict my line of sight so my cops can't see through the walls. Below you find the design, in which they can look through windows, but not walls. Further below you find an illustration of what my problem is exactly. this is what it looks like now. As you can see, the cops can see through walls. This is the map i would want to use to restrict the line of sight. So the way i am programming the line of sight now is just by calculating some points and drawing the sight accordingly, as shown below. Note that i also check for a hittest using bitmapdata to check whether or not my player has been spotted by any of the cops. private function setSight(e:Event=null):Boolean { g = copCanvas.graphics; g.clear(); for each(var cop:Cop in copCanvas.getChildren()) { var _angle:Number = cop.angle; var _radians:Number = (_angle * Math.PI) / 180; var _radius:Number = 50; var _x1:Number = cop.x + (cop.width/2); var _y1:Number = cop.y + (cop.height/2); var _baseX:Number = _x1 + (Math.cos(_radians) * _radius); var _baseY:Number = _y1 - (Math.sin(_radians) * _radius); var _x2:Number = _baseX + (25 * Math.sin(_radians)); var _y2:Number = _baseY + (25 * Math.cos(_radians)); var _x3:Number = _baseX - (25 * Math.sin(_radians)); var _y3:Number = _baseY - (25 * Math.cos(_radians)); g.beginFill(0xff0000, 0.3); g.moveTo(_x1, _y1); g.lineTo(_x2, _y2); g.lineTo(_x3, _y3); g.endFill(); } var _cops:BitmapData = new BitmapData(width, height, true, 0); _cops.draw(copCanvas); var _bmpd:BitmapData = new BitmapData(10, 10, true, 0); _bmpd.draw(me); if(_cops.hitTest(new Point(0, 0), 10, _bmpd, new Point(me.x, me.y), 255)) { gameover.alpha = 1; setTimeout(function():void{ gameover.alpha = 0; }, 5000); stop(); return true; } return false; } So now my question is: Is there someone who knows how to restrict the view so that the cops can't look through the walls? Thanks a lot in advance. ps: i have already looked at this tutorial by emanuele feronato, but i can't use the code to restric the visual line of sight.

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Oracle WebCenter: Common User Experience Architecture

- by kellsey.ruppel(at)oracle.com

You may remember that the key goals of the new release of WebCenter are providing a Modern User Experience, unparalleled Application Integration, converging all the best of the existing portal platforms into WebCenter and delivering a Common User Experience Architecture. In previous weeks we've provided an overview of Oracle WebCenter and discussed some of the other key goals and this week, we'll focus on how the new release of Oracle WebCenter delivers a Common User Experience Architecture.When Oracle talks about a Common User Experience Architecture, it really focuses on a core set of areas. First, the way that information is accessed needs to be consistent and extensible so that as requirements change, the applications don't need to be rewritten for every change. Second, this information access layer needs to be securely accessible to any application, site, or any other channel that needs to leverage this information. Third, there needs to be a consistent presentation layout, Oracle calls it a UI shell, so that all resources can fit together in a useable, productive way. Fourth, there needs to be a common set of design patterns for how different menus, features, and services fit into this UI Shell for broad and productive usability. Fifth, there needs to be a set of design patterns for the individual services that plug into this UI shell so that end users can move from one module of the application to another without new learning. Finally, all of these layers need to be customizable in an easy way that insulates IT from patching and upgrading problems and allows the business owners the agility to quickly change with the market conditions.As Oracle has already announced, we will release our next generation of enterprise applications called Oracle Fusion Applications. We have thousands of developers building these applications that all had different programming tool experience and UI design experience. We've educated over 6,000 developers building Oracle Fusion Applications to leverage these Common User Experience Architecture patterns to speed their learning curve of the new Java standards as well as SOA principles to deliver a revolutionary new set of applications. You could imagine the big challenge with getting all these developers with different backgrounds and different UI design skills to deliver a completely integrated application user experience. This is why Oracle invested heavily in designing this Common User Experience Architecture, based on Oracle WebCenter and the Oracle Application Development Framework (ADF). It pulls together the best practices and design patterns that Oracle development required in order to bring Fusion Applications to market and Oracle WebCenter is the user experience layer that all of this is surfaced through. In this way, customers can quickly brand a deployment for new partnerships without having to redevelop a new site. Or they can quickly add new options to the UI Shell to enable their line of business managers to quickly adapt to a new competitive product. And with the core integration of the activities to produce a Business Activity Stream, customers are able to stay on top of all their key business actions when they happen as they happen and more importantly, the system can recommend actions or resources to help act on these activities.And we've authored this whole set of design patterns for Oracle development to take advantage of in delivering Fusion Applications. We're also applying these design patterns to our existing eBusiness Suite, Peoplesoft, Siebel, and JD Edwards applications so that they can tie in the exact same way that Fusion Applications has been brought together. This will provide customers with a complete Common User Experience Architecture for their entire ecosystem of applications within their enterprise whether they are from Oracle, another vender, or custom built applications. And this is all provided in the new release of Oracle WebCenter. These design patterns cover elements around delivering a complete, aggregated menu of all the capabilities that their role allows independent of which application they are trying to access. It means that as they move from one application to another, they will have a consistent user experience. And if they are using an Oracle application, any customizations that are made to the application are preserved and managed through upgrades and patches.Be sure to check back this week as we share more information and resources on Oracle's Common User Experience Architecture.

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Oracle Announces Leading ISV Integration With Oracle Sales and Marketing Cloud Service

- by Richard Lefebvre

More Than 100 ISVs, including Big Machines, Marketo and Xactly, now Provide Integrated Offerings to Help Maximize Sales and Single Customer Viewpoint Demonstrating its continued commitment to business value via open standards and the cloud, Oracle today announced that more than 100 leading ISVs are integrating in the cloud with Oracle Sales and Marketing Cloud Service, a service available through Oracle Cloud. For the first time Oracle Sales and Marketing Cloud Service users can choose from a wide array of directly integrated third-party solutions, providing a new level of choice, seamless deployment and single view of customers with preferred implementations. Top partners, including ActivePrime, Avaya, BigMachines, Box, Brainshark, Callidus Software, CirrusPath, Clicktools, CRMIT, DBSync, EchoSign from Adobe, Eloqua, Fliptop, FPX, HarQen, HubSpot, iHance, InsideSales.com, InsideView, Interactive Intelligence, Lingotek, LinkPoint360, Marketo, Nuance, PerspecSys, Postcode Anywhere, Revegy, salesElement, StrikeIron, upsourceIT, White Springs, X+1 and Xactly, have announced their availability and integration today. By integrating with Oracle Sales and Marketing Cloud Service, ISV solutions can easily be leveraged by customersBy choosing Oracle Sales and Marketing Cloud Service as a sales platform, customers will continue to have complete choice of their own quoting, lead management and sales methodology solutions and it will all be pre-integrated with Oracle Sales and Marketing Cloud Service. With demonstrable integration fusing standards-based technologies, such as SOAP web services, Oracle Sales and Marketing Cloud Service customers choosing ISV integrations will also benefit from familiar ease-of-use and the Oracle Sales and Marketing Cloud ervice user interface, including buttons, links and custom objects for a rich user experience. ISV integration with Oracle Sales and Marketing Cloud Service also enables on-demand contextual data exchange capabilities, linking Oracle Sales and Marketing Cloud Service business data with third-party application data for a complete CRM view. ISVs building robust, repeatable integrations with Oracle Sales and Marketing Cloud Service can begin the process of achieving Oracle Validated Integration, an Oracle PartnerNetwork program that recognizes Oracle partner solutions with proven integration to Oracle Applications. ISVs can learn more about Oracle Validated Integration here. For customers, Oracle Validated Integration means that a partner’s integration has been tested and validated as functionally and technically sound, that the partner solution is integrated with Oracle Sales and Marketing Cloud Service in a reliable, standardized way, and that the integration operates and performs as documented. Oracle Cloud provides a broad portfolio of Platform Services, Application Services, and Social Services, all on a subscription basis. Oracle Cloud delivers instant value and productivity for end users, administrators, and developers through functionally rich, integrated, secure, enterprise cloud services. Supporting Quotes “BigMachines is a leader in Configure, Price, and Quote solutions in the Cloud. Our solution delivers accurate quotes directly from an opportunity, integrated with the leading Oracle Sales and Marketing Cloud application from Oracle,” says John Pulling, Senior Vice President of Products at Big Machines. “Together, Big Machines and Oracle efficiently automate changes, enabling a faster, more efficient sales process for our joint customers.” ”Modern marketing and sales must engage customers and prospects in real time across the web, email, social media, online and offline channels to understand where and how to allocate their budgets for maximum return,” said Srini Venkatesan, Senior VP, Products and Engineering at Marketo. “Alignment and integration with Oracle Sales and Marketing Cloud Service allows Marketo’s solutions to deliver innovative capabilities for sales and marketing to adapt and grow their business on the core Oracle platform for CRM.” “Sales incentives are the best way to drive better performance. Well managed incentives improve the bottom line, particularly when combined with effective sales systems,” said Christopher Cabrera, president and CEO of Xactly Corporation. “With Oracle Sales and Marketing Cloud Service and Xactly working together, customers gain insight and efficiencies. The combination can create more effective compensation programs, while motivating sales to work to its full potential." “The tremendous integration of leading ISVs with Oracle Sales and Marketing Cloud Service is a testament to the undeniable business value and demand from customers,” said Anthony Lye, SVP of Oracle CRM. “Oracle Sales and Marketing Cloud Service continues to define the industry, and we are proud to work with these leading ISVs to help users simultaneously maximize sales and revenue and extend their current deployments for a deeper and single customer viewpoint.” Supporting Resources Oracle Sales and Marketing Cloud Service Learn More About Oracle Cloud

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Ubuntu 12.04 Bootloader failed to install

- by Chris

Sorry about the excessively long question, but I figured giving more information would be better. I recently bought a new desktop for myself, running Windows 7. It has two hard drives, and I wanted to install Ubuntu on a small partition on the second hard drive. I created 25GB "free space" in Windows and ran a LiveCD install. I wanted to select the install options myself but accidentally selected "Install alongside Windows 7," but it seemed to pick up the free space and installed itself there as I wanted it to. However, I was told that the bootloader installation had failed. I chose to "Cancel installation," leaving my computer unable to boot. I wiped my computer and reinstalled Windows. After that, I tried installing Ubuntu through Windows using WUBI, once using files from my LiveCD and once downloading everything again. Both times the install succeeded, but both times when I restarted and tried to load Ubuntu, it gave me an error - wubildr.mbr was corrupt or missing. I checked in Windows - it was indeed present on the C:\ drive. I went back to the LiveCD installation, this time going the custom options route. I assigned 16GB to an Ext4 journaling file system and 10GB to a swap file. I got the same bootloader error as before. Being prompted to select a different partition to install the bootloader to, I first tried the partition Ubuntu was installed on. A window came up saying that the install had succeeded, but a second window gave me the same error and choices as before. I went through every single option it gave me, including the Windows partition and the hard drives themselves (dev/sda, dev/sdb). Same result. I then chose to not install a bootloader. Windows still works fine, and I assume Ubuntu has installed but is unbootable. Knowing that my computer could potentially brick itself again - and, this time around, with a lot of data to lose and hassle to go through if I mess it up - I really don't want to do anything without some advice. So I'll ask this: a) Why did the bootloader fail to install? Can I fix the error and install Ubuntu fresh? b) Is there any way to get around the error, install the bootloader, and point it towards an existing installation of Ubuntu? c) Is there a quicker and easier solution I might have missed? EDIT: Thanks for the tip, AthloX. After testing the liveCD in Virtualbox with no installation problems, I looked around for some alternate bootloaders but had no success. I attempted another install, which installed the bootloader and Ubuntu just fine but bricked Windows 7. I wiped both hard disks clean, including some "System Reserved" partitions I hadn't noticed before, before re-installing Windows 7 on one hard drive and immediately afterwards installing Ubuntu on the other. Now the computer boots into Windows, but I can pop into the BIOS at startup to boot into Ubunbtu via it's bootloader, and I'm guessing it'll only take a bit of poking at the BIOS to swap the load order. Many thanks!

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XNA 4.0 - Normal mapping shader - strange texture artifacts

- by Taylor

I recently started using custom shader. Shader can do diffuse and specular lighting and normal mapping. But normal mapping is causing really ugly artifacts (some sort of pixeling noise) for textures in greater distance. It looks like this: Image link This is HLSL code: // Matrix float4x4 World : World; float4x4 View : View; float4x4 Projection : Projection; //Textury texture2D ColorMap; sampler2D ColorMapSampler = sampler_state { Texture = <ColorMap>; MinFilter = Anisotropic; MagFilter = Linear; MipFilter = Linear; MaxAnisotropy = 16; }; texture2D NormalMap; sampler2D NormalMapSampler = sampler_state { Texture = <NormalMap>; MinFilter = Anisotropic; MagFilter = Linear; MipFilter = Linear; MaxAnisotropy = 16; }; // Light float4 AmbientColor : Color; float AmbientIntensity; float3 DiffuseDirection : LightPosition; float4 DiffuseColor : Color; float DiffuseIntensity; float4 SpecularColor : Color; float3 CameraPosition : CameraPosition; float Shininess; // The input for the VertexShader struct VertexShaderInput { float4 Position : POSITION0; float2 TexCoord : TEXCOORD0; float3 Normal : NORMAL0; float3 Binormal : BINORMAL0; float3 Tangent : TANGENT0; }; // The output from the vertex shader, used for later processing struct VertexShaderOutput { float4 Position : POSITION0; float2 TexCoord : TEXCOORD0; float3 View : TEXCOORD1; float3x3 WorldToTangentSpace : TEXCOORD2; }; // The VertexShader. VertexShaderOutput VertexShaderFunction(VertexShaderInput input, float3 Normal : NORMAL) { VertexShaderOutput output; float4 worldPosition = mul(input.Position, World); float4 viewPosition = mul(worldPosition, View); output.Position = mul(viewPosition, Projection); output.TexCoord = input.TexCoord; output.WorldToTangentSpace[0] = mul(normalize(input.Tangent), World); output.WorldToTangentSpace[1] = mul(normalize(input.Binormal), World); output.WorldToTangentSpace[2] = mul(normalize(input.Normal), World); output.View = normalize(float4(CameraPosition,1.0) - worldPosition); return output; } // The Pixel Shader float4 PixelShaderFunction(VertexShaderOutput input) : COLOR0 { float4 color = tex2D(ColorMapSampler, input.TexCoord); float3 normalMap = 2.0 *(tex2D(NormalMapSampler, input.TexCoord)) - 1.0; normalMap = normalize(mul(normalMap, input.WorldToTangentSpace)); float4 normal = float4(normalMap,1.0); float4 diffuse = saturate(dot(-DiffuseDirection,normal)); float4 reflect = normalize(2*diffuse*normal-float4(DiffuseDirection,1.0)); float4 specular = pow(saturate(dot(reflect,input.View)), Shininess); return color * AmbientColor * AmbientIntensity + color * DiffuseIntensity * DiffuseColor * diffuse + color * SpecularColor * specular; } // Techniques technique Lighting { pass Pass1 { VertexShader = compile vs_2_0 VertexShaderFunction(); PixelShader = compile ps_2_0 PixelShaderFunction(); } } Any advice? Thanks!

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Big Data – Basics of Big Data Architecture – Day 4 of 21

- by Pinal Dave

In yesterday’s blog post we understood how Big Data evolution happened. Today we will understand basics of the Big Data Architecture. Big Data Cycle Just like every other database related applications, bit data project have its development cycle. Though three Vs (link) for sure plays an important role in deciding the architecture of the Big Data projects. Just like every other project Big Data project also goes to similar phases of the data capturing, transforming, integrating, analyzing and building actionable reporting on the top of the data. While the process looks almost same but due to the nature of the data the architecture is often totally different. Here are few of the question which everyone should ask before going ahead with Big Data architecture. Questions to Ask How big is your total database? What is your requirement of the reporting in terms of time – real time, semi real time or at frequent interval? How important is the data availability and what is the plan for disaster recovery? What are the plans for network and physical security of the data? What platform will be the driving force behind data and what are different service level agreements for the infrastructure? This are just basic questions but based on your application and business need you should come up with the custom list of the question to ask. As I mentioned earlier this question may look quite simple but the answer will not be simple. When we are talking about Big Data implementation there are many other important aspects which we have to consider when we decide to go for the architecture. Building Blocks of Big Data Architecture It is absolutely impossible to discuss and nail down the most optimal architecture for any Big Data Solution in a single blog post, however, we can discuss the basic building blocks of big data architecture. Here is the image which I have built to explain how the building blocks of the Big Data architecture works. Above image gives good overview of how in Big Data Architecture various components are associated with each other. In Big Data various different data sources are part of the architecture hence extract, transform and integration are one of the most essential layers of the architecture. Most of the data is stored in relational as well as non relational data marts and data warehousing solutions. As per the business need various data are processed as well converted to proper reports and visualizations for end users. Just like software the hardware is almost the most important part of the Big Data Architecture. In the big data architecture hardware infrastructure is extremely important and failure over instances as well as redundant physical infrastructure is usually implemented. NoSQL in Data Management NoSQL is a very famous buzz word and it really means Not Relational SQL or Not Only SQL. This is because in Big Data Architecture the data is in any format. It can be unstructured, relational or in any other format or from any other data source. To bring all the data together relational technology is not enough, hence new tools, architecture and other algorithms are invented which takes care of all the kind of data. This is collectively called NoSQL. Tomorrow Next four days we will answer the Buzz Words – Hadoop. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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Silverlight Cream for November 13, 2011 -- #1166

- by Dave Campbell

In this Issue: Pontus Wittenmark, Jeff Blankenburg(-2-), Colin Eberhardt, Charles Petzold, Dhananjay Kumar, Igor, Beth Massi, Kunal Chowdhury(-2-), Shawn Wildermuth, XAMLNinja, and Peter Kuhn(-2-). Above the Fold: Silverlight: "Silverlight Page Navigation Framework - Learn about UriMapper" Kunal Chowdhury WP7: "31 Days of Mango" Jeff Blankenburg WinRT/Metro/W8: "An Introduction to Semantic Zoom in Windows 8 Metro" Colin Eberhardt LightSwitch: "Common Validation Rules in LightSwitch Business Applications" Beth Massi Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Michael Washington's latest Visual Studio #LightSwitch Daily is up From SilverlightCream.com: 10 tips about porting Silverlight apps to WinRT/Metro style apps (Part 1) Pontus Wittenmark spent some time porting his Silverlight game to WinRT and says it was easier than expected. He has posted 10 tips for porting... and promises more 31 Days of Mango Looks like Jeff Blankenburg started another 31 days series... this one on Mango dev... and looks like I'm late to the party, but that's ok, gives me more stuff to blog about... this time you can get the posts by email, and he has a hashtag for discussion too 31 Days of Mango | Day #1: The New Windows Phone Emulator Tools Day 1 of Jeff Blankenburg's journey is this post on what's new in the emulator tools. An Introduction to Semantic Zoom in Windows 8 Metro This is Colin Eberhardt's latest ... getting familiar with semantic zoom oin Metro by creating a WP7-stylke jumplist experience.... check out the video on his blogpost for a better idea of what he's up to .NET Streams and Windows 8 IStreams In his first real post on his new series writing an EPUB viewer for W8, Charles Petzold described using IInputStream to get the contents of a disk file... and source for the project in progress Video on How to work with Page Navigation and Back Button in Windows Phone 7 Dhananjay Kumar has a video tutorial up on Page Navigation and Back Button usage in WP7 Screen capture to media library instead of isolated storage Igor discusses a class that lets you save screen captures for use in your application and also saving them to the media library on the phone Common Validation Rules in LightSwitch Business Applications Beth Massi's latest is this LightSwitch post on Validation rules... showing how to define declarative rules and also write custom validation code. Silverlight Page Navigation Framework - Learn about UriMapper Kunal Chowdhury continues his Page Navigation discussion with this post on the UriMapper, and how to hide the actual URL of the page you're navigating to How to use PlaySoundAction Behavior in WP7 Application? Kunal Chowdhury also has this post up on using the PlaySoundAction Behavior in WP7 ... nice tutorial on using Blend to get the job done What Win8 Should Learn from Windows Phone After spending time with Windows 8, Shawn Wildermuth has this post up about features from WP7 that should be brought over to Windows 8, and finishes with features that WP8 (?) could learn from Win8 too WP7Contrib – FindaPad and the fastest list in the west XAMLNinja discusses the WP7 App FindaPad which spawned the creation of WP7Contrib and uses the app to describe some nuances that may not be readily obvious. Windows Phone 7: The kind of bug you don't want to discover Peter Kuhn discusses a problem he came across while programming WP7, interestingly enough, only in the emulator, and has to do with a Uint64 cast. He does offer a workaround. Announcing: Your Last About Dialog (YLAD) Peter Kuhn also has this post up that's a take-off on a post by Jeff Wilcox about a generic About Dialog. Peter has some great additions.. and he's right... it may be your last About Dialog... get it via NuGet, too! Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight Silverlight 3 Silverlight 4 Windows Phone MIX10

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Stay on Schedule in Chrome with DayHiker

- by Matthew Guay

Do you keep your schedule and tasks in Google Calendar? Here’s a handy extension for Google Chrome that can keep you on top of your appointments without having to open Google Calendar in another tab. Integrate Google Calendar with Chrome DayHiker is a handy extension for Google Chrome that can help you stay on schedule in your browser. Desktop applications typically can keep you notified easier with popups or alerts, but webapps require you to visit them to view your information. DayHiker takes the best of both, and can make your Google Calendar work more like a desktop application. To get started, open the DayHiker page from the Chrome Extensions Gallery (link below), and click Install. Confirm you wish to install it at the prompt. Now you’ll have a new extension button in your Chrome toolbar. Click the calendar icon to view your Google Calendar. You’ll need to be signed into your Google account for your calendar to display; click the key icon to select your account if it doesn’t show your appointments automatically. If you’re signed into multiple Google accounts, such as your public Gmail and a Google Apps account, you can select the calendar you wish and click Continue. Now you can quickly see your upcoming appointments. Simply hover over the icon to see your upcoming events. Or, just glance at it to see if there are any appointments coming up, as the indicator icon will change colors to show how long you have until your next appointment. Click the icon to see more information about your appointments. Or, click the Add link to add a new appointment. If you need to edit the appointment details, click Edit Details and the appointment will open in Google Calendar for you to edit. You can also view and manage your tasks in Google Calendar. Click the checkmark icon, and then add or check-off tasks directly from the extension pane. You can also set an alarm clock in DayHiker. Click the green circle icon, and then enter the time for the alarm to go off. Strangely it will only chime if the extension pane is left open, so if you click anywhere else in the browser or even switch to another program it will not chime. If you’d like to customize DayHiker’s settings, right-click on it and select Options, or select Options in the Chrome Extensions page. Here you can customize your badges and the DayHiker icon, or enter a custom domain for your Google Apps Pro calendar. Conclusion If you rely on Google Calendar to stay on top of your schedule, DayHiker can help you stay scheduled and know what’s coming up. We wish DayHiker supported multiple calendars so we could combine our Google Apps calendars with our personal Google Calendar, but even still, it is a very useful tool. Whether you’re a tightly scheduled person or just like to jot down to-dos and keep track of them, this extension will help you do this efficiently with familiar Google tools. Link Download DayHiker from the Chrome Extensions Gallery Similar Articles Productive Geek Tips Configure Disk Defragmenter Schedule in Windows 7 or VistaSchedule Updates for Windows Media CenterOpen Multiple Sites Without Reopening the Menus in FirefoxFind a Website’s Actual Location with Chrome FlagsSubscribe to RSS Feeds in Chrome with a Single Click TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips HippoRemote Pro 2.2 Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Dual Boot Ubuntu and Windows 7 What is HTML5? Default Programs Editor – One great tool for Setting Defaults Convert BMP, TIFF, PCX to Vector files with RasterVect Free Identify Fonts using WhatFontis.com Windows 7’s WordPad is Actually Good

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Harness MySQL's Continued Performance Tuning Improvements

- by Antoinette O'Sullivan

To fully harness the continued improvements in performance tuning you get with MySQL, take the MySQL Performance Tuning course. This 4 day class teaches you practical, safe, highly efficient ways to optimize performance for the MySQL Server. You will learn the skills needed to use tools for monitoring, evaluating and tuning. You can take this course in the following three ways: Training-on-Demand: Follow this course at your own pace and from your own desk with streaming video of instructor delivery and booking time to follow hands-on exercises at your own convenience. Live-Virtual: Attend a live instructor-led event from your own desk. Choose from the numerous events on the schedule. In-Class: Travel to an education center to follow this class. A sample of events on the schedule is shown below: Location Date Delivery Language Tokyo, Japan 19 November 2012 Japanese Mechelen, Belgium 4 February 2013 English London, England 19 November 2012 English Budapest, Hungary 21 May 2013 Hungarian Milan, Italy 14 January 2013 Italian Rome, Italy 3 December 2012 Italian Riga, Latvia 10 December 2012 Latvian Amsterdam, Netherlands 7 January 2013 Dutch Nieuwegein, Netherlands 26 November 2012 Dutch Warsaw, Poland 3 December 2012 Polish Lisbon, Portugal 4 February 2013 European Portugese Porto, Portugal 4 February 2013 European Portugese Barcelona, Spain 25 March 2013 Spanish Madrid, Spain 17 December 2012 Spanish Sydney, Australia 26 November 2012 English Edmonton, Canada 10 December 2012 English Montreal, Canada 26 November 2012 English Ottawa, Canada 26 November 2012 English Toronto, Canada 26 November 2012 English Vancouver, Canada 10 December 2012 English Sao Paolo, Brazil 26 November 2012 Brazilan Portugese For more information on this class or to know more about other courses on the authentic MySQL curriculum. see http://oracle.com/education/mysql. Note, many organizations deploy both Oracle Database and MySQL side by side to serve different needs, and as a database professional you can find training courses on both topics at Oracle University! Check out the upcoming Oracle Database training courses and MySQL training courses. Even if you're only managing Oracle Databases at this point of time, getting familiar with MySQL will broaden your career path with growing job demand.

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Tablet design guide, Endeca patterns now available

- by JuergenKress

UX Direct, an Oracle program that offers consultants, partners, and customers the same scientifically proven and reusable user experience best practices that Oracle uses to build Oracle Applications, recently added links to a new design guide for creating tablet-based solutions for enterprise applications, and to the recently published Endeca User Interface Design Pattern Library. The tablet design guide is available from the UX Direct Home page. Tap the button under “Latest patterns & tools” for “Oracle Applications UX Tablet Guide.” It provides basic help for designers, developers, and project managers trying to approach tablet design and testing from an enterprise point of view. To hear what developers are saying about it, follow the links from this post on the User Experience Assistance blog. The newly released Endeca User Interface Design Pattern Library is also available from the UX Direct Home page and from a post on the User Experience Assistance blog. It describes principled ways to solve common user interface (UI) design problems related to search, faceted navigation, and discovery. The link between Simplified UI and Oracle UX strategy, plus content you can share on the cloud, ADf, tailoring, and more Simplified User Interface in Oracle Fusion Applications Fronts Oracle Cloud Offerings This new article on Simplified UI has just been posted on Usable Apps. Learn about the three themes - simplicity, mobility, and extensibility – that Simplified UI embodies. These same principles are guiding the development of the next generation of the Oracle user experience. Oracle's Applications User Experience Strategy: One Cloud User Experience, with Optimized UIs Where and How You Want This podcast from Misha Vaughan, Director, User Experience, is now available on the Oracle University Knowledge Center. It is available for partners and Oracle employees at this iLearning Link. Oracle Partner Builds User Experience That Hits Right Note for New Employees This new article on the Usable Apps website explores the experience of consultants at IntraSee as they implement a PeopleSoft onboarding process for Invesco, a global asset management company. The Feng Shui of Fusion This article in Oracle Scene is from Grant Ronald, Director of Product Management, on the Tools of Fusion: Oracle JDeveloper and Oracle ADF. Hands-On Workshop with Fusion Applications and ADF UX Desktop Design Patterns This post on the Voice of User Experience, or VoX, blog from Misha Vaughan describes a new kind of workshop for partners and a handful of internal Oracle sales folks on extending Oracle Fusion Applications and building custom applications with Application Development Framework (ADF) while maintaining the Oracle user experience. To learn more about the content that was delivered during this three-day workshop, visit the Usable Apps blog. Recent posts from a new blog series take a look at several of the topics discussed during the workshop. Applications User Experience Fundamentals Visual Design for any Enterprise User Interface / Art School in a Box Wireframing / Blueprinting Usable Applications Concepts. Tailoring videos This blog post from Richard Bingham, Applications Architect, on the Fusion Applications Developer Relations blog provides links to several videos that show many customization and development tasks using the Oracle Fusion Applications platform. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: UX,Architecture,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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USB drives not recognized all of a sudden (usb_storage not loaded lsmod does not report usb_storage)

- by Siddharth

I have tried most of the advice on askubuntu and other sites, usb_storage enable to fdisk -l. But I am unable to find steps to get it working again. sudo lsusb results Bus.... skipped 4 lines Bus 004 Device 002: ID 413c:3012 Dell Computer Corp. Optical Wheel Mouse Bus 005 Device 002: ID 413c:2105 Dell Computer Corp. Model L100 Keyboard Bus 001 Device 005: ID 8564:1000 sudo dmseg | tail reports [ 69.567948] usb 1-4: USB disconnect, device number 4 [ 74.084041] usb 1-6: new high-speed USB device number 5 using ehci_hcd [ 74.240484] Initializing USB Mass Storage driver... [ 74.256033] scsi5 : usb-storage 1-6:1.0 [ 74.256145] usbcore: registered new interface driver usb-storage [ 74.256147] USB Mass Storage support registered. [ 74.257290] usbcore: deregistering interface driver usb-storage fdisk -l reports Device Boot Start End Blocks Id System /dev/sda1 * 2048 972656639 486327296 83 Linux /dev/sda2 972658686 976771071 2056193 5 Extended /dev/sda5 972658688 976771071 2056192 82 Linux swap / Solaris I think I need steps to install and get usb_storage module working. Edit : I tried sudo modprobe -v usb-storage reports sudo modprobe -v usb-storage insmod /lib/modules/3.2.0-48-generic-pae/kernel/drivers/usb/storage/usb-storage.ko Edit : jsiddharth@siddharth-desktop:~$ sudo udevadm monitor --udev monitor will print the received events for: UDEV - the event which udev sends out after rule processing UDEV [4757.144372] add /module/usb_storage (module) UDEV [4757.146558] remove /module/usb_storage (module) UDEV [4757.148707] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6 (usb) UDEV [4757.149699] add /bus/usb/drivers/usb-storage (drivers) UDEV [4757.151214] remove /bus/usb/drivers/usb-storage (drivers) UDEV [4757.156873] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0 (usb) UDEV [4757.160903] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9 (scsi) UDEV [4757.164672] add /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9/scsi_host/host9 (scsi_host) UDEV [4757.165163] remove /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9/scsi_host/host9 (scsi_host) UDEV [4757.165440] remove /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6:1.0/host9 (scsi) Narrowing down more : Seems like I need usb_storage to load as a module jsiddharth@siddharth-desktop:~$ lsmod | grep usb usbserial 37201 0 usbhid 41937 0 hid 77428 1 usbhid Still no usb driver mounted. Nor does a device show up in /dev. Any step by step process to debug and fix this will be really helpful.

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Oracle Solaris at the OpenStack Summit in Atlanta

- by Glynn Foster

I had the fortune of attending my 2nd OpenStack summit in Atlanta a few weeks ago and it turned out to be a really excellent event. Oracle had many folks there this time around across a variety of different engineering teams - Oracle Solaris, Oracle ZFSSA, Oracle Linux, Oracle VM and more. Really great to see continuing momentum behind the project and we're very happy to be involved. Here's a list of the highlights that I had during the summit: The operators track was a really excellent addition, with a chance for users/administrators to voice their opinions based on experiences. Really good to hear how OpenStack is making businesses more agile, but also equally good to hear about some of the continuing frustrations they have (fortunately many of them are new and being addressed). Seeing this discussion morph into a "Win the enterprise" working group is also very pleasing. Enjoyed Troy Toman's keynote (Rackspace) about designing a planet scale cloud OS and the interoperability challenges ahead of us. I've been following some of the discussion around DefCore for a bit and while I have some concerns, I think it's mostly heading in the right direction. Certainly seems like there's a balance to strike to ensure that this effects the OpenStack vendors in such a way as to avoid negatively impacting our end users. Also enjoyed Toby Ford's keynote (AT&T) about his desire for a NVF (Network Function Virtualization) architecture. What really resonated was also his desire for OpenStack to start addressing the typical enterprise workload, being less like cattle and more like pets. The design summit was, as per usual, pretty intense for - definitely would get more value from these if I knew the code base a little better. Nevertheless, attended some really great sessions and got a better feeling of the roadmap for Juno. Markus Flierl gave a great presentation (see below) at the demo theatre for what we're doing with OpenStack on Oracle Solaris (and more widely at Oracle across different products). Based on the discussions that we had at the Oracle booth, there's a huge amount of interest there and we talked to some great customers during the week about their thoughts and directions in this respect. Undoubtedly Atlanta had some really good food. Highlights were the smoked ribs and brisket and the SweetWater brewing company. That said, I also loved the fried chicken, fried green tomatoes and collared greens, and wonderful hosting of "big momma" at Pitty Pat's Porch. Couldn't quite bring myself to eat biscuits and gravy in the morning though. Visiting the World of Coca-Cola just before flying out. A total brain washing exercise, but very enjoyable. And very much liked Beverly (contrary to many other opinions on the internet) - but then again, I'd happily drink tonic water every day of the year... Looking forward to Paris in November!

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