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• Disk errors on tty and syslog/dmesg

  - by Shoaibi

  Recently I have started to get a lot of these errors: Jun 18 08:57:42 abacus kernel: [ 401.554292] ata5: SError: { HostInt 10B8B } Jun 18 08:57:42 abacus kernel: [ 401.559346] sr 4:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Jun 18 08:57:42 abacus kernel: [ 401.560191] ata5.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Jun 18 08:57:42 abacus kernel: [ 401.560231] res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) Jun 18 08:57:42 abacus kernel: [ 401.575310] ata5.00: status: { DRDY ERR } Jun 18 08:57:42 abacus kernel: [ 401.579801] ata5: hard resetting link Jun 18 08:57:42 abacus kernel: [ 401.929320] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jun 18 08:57:42 abacus kernel: [ 401.941936] ata5.00: configured for UDMA/100 Jun 18 08:57:42 abacus kernel: [ 401.969426] ata5: EH complete Jun 18 08:57:54 abacus kernel: [ 413.527699] ata5.00: exception Emask 0x40 SAct 0x0 SErr 0x80800 action 0x6 Jun 18 08:57:54 abacus kernel: [ 413.527779] ata5.00: irq_stat 0x40000001 Jun 18 08:57:54 abacus kernel: [ 413.527822] ata5: SError: { HostInt 10B8B } Jun 18 08:57:54 abacus kernel: [ 413.527901] sr 4:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Jun 18 08:57:54 abacus kernel: [ 413.528103] ata5.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Jun 18 08:57:54 abacus kernel: [ 413.528142] res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) Jun 18 08:57:54 abacus kernel: [ 413.528184] ata5.00: status: { DRDY ERR } Jun 18 08:57:54 abacus kernel: [ 413.528303] ata5: hard resetting link Jun 18 08:57:54 abacus kernel: [ 413.875894] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jun 18 08:57:54 abacus kernel: [ 413.888267] ata5.00: configured for UDMA/100 Jun 18 08:57:54 abacus kernel: [ 413.916365] ata5: EH complete Jun 18 08:57:56 abacus kernel: [ 415.537834] ata5.00: exception Emask 0x40 SAct 0x0 SErr 0x80800 action 0x6 Jun 18 08:57:56 abacus kernel: [ 415.545253] ata5.00: irq_stat 0x40000001 Jun 18 08:57:56 abacus kernel: [ 415.549788] ata5: SError: { HostInt 10B8B } Jun 18 08:57:56 abacus kernel: [ 415.554840] sr 4:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Jun 18 08:57:56 abacus kernel: [ 415.555201] ata5.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Jun 18 08:57:56 abacus kernel: [ 415.555242] res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) Jun 18 08:57:56 abacus kernel: [ 415.570483] ata5.00: status: { DRDY ERR } Jun 18 08:57:56 abacus kernel: [ 415.574695] ata5: hard resetting link Jun 18 08:57:56 abacus kernel: [ 415.924954] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jun 18 08:57:56 abacus kernel: [ 415.936831] ata5.00: configured for UDMA/100 Jun 18 08:57:56 abacus kernel: [ 415.965001] ata5: EH complete Jun 18 08:58:02 abacus kernel: [ 421.529784] ata5.00: exception Emask 0x40 SAct 0x0 SErr 0x80800 action 0x6 Jun 18 08:58:02 abacus kernel: [ 421.529904] ata5.00: irq_stat 0x40000001 Jun 18 08:58:02 abacus kernel: [ 421.530023] ata5: SError: { HostInt 10B8B } Jun 18 08:58:02 abacus kernel: [ 421.530104] sr 4:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Jun 18 08:58:02 abacus kernel: [ 421.530425] ata5.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Jun 18 08:58:02 abacus kernel: [ 421.530466] res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) Jun 18 08:58:02 abacus kernel: [ 421.530583] ata5.00: status: { DRDY ERR } Jun 18 08:58:02 abacus kernel: [ 421.530705] ata5: hard resetting link Jun 18 08:58:02 abacus kernel: [ 421.873218] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jun 18 08:58:02 abacus kernel: [ 421.885040] ata5.00: configured for UDMA/100 Jun 18 08:58:02 abacus kernel: [ 421.913404] ata5: EH complete Are these critical error messages? What would be the cause and remedy?

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• Create Image Maps with GIMP

  - by SGWellens

  Having a clickable image in a web page is not a big deal. Having an image in a web page with clickable hotspots is a big deal. The powerful GIMP editor has a tool to make creating clickable hotspots much easier. GIMP stands for GNU Image Manipulation Program. Its home page and download links are here: http://www.gimp.org/ (it is completely free). Beware: GIMP is an extraordinarily advanced and powerful image editor. If you wish to use it for general image editing tasks, you have a steep learning curve to climb. FYI: I used it to create the shadows you see on the images below. Fortunately, the tool to make Image Maps is separate from the main program. To start, open an image with GIMP or, drag and drop an image onto the GIMP main window. I'm using the image of a bar graph. Next, we have to find the Image Map tool and launch it (Filters->Web->Image Map…): Why is the Image Map tool under Filters and not Tools? I don't know. It's mystery—much like the Loch Ness Monster, the Bermuda Triangle, or why my socks keep disappearing when I do laundry. I swear I've got twenty single unmatched socks. But I digress… Here is what the Image Map tool looks like: If we click the blue 'I' button, we can add information to the Image Map: Now we'll use the rectangle tool to create some clickable hotspots. Select the Blue Rectangle tool, drag a rectangle, click when done and you'll get something like this: You can also make circle/oval and polygon areas. You can edit all the parameters of an image map area after drawing it. Rectangle settings (for fine tweaking): JavaScript functions (it's up to you to write them): Here is a setup with two rectangles and one polygon area: When you hit save a map file is generated that looks something like this: Paste the contents into a web page and you are almost there. I made some tweaks before it became usable: Replaced &apos; with apostrophes in the javascript functions. Changed the image path so it would find the image in my images directory Tweaked the href urls. Added Title="Some Text" to get tool tips. Cleaned out the comments. Result: The final markup (with JavaScript function): function ImageMapMouseHover(Msg) { $("#Label1").html(Msg); } It may seem like a lot of bother but, the tool does the heavy lifting: i.e. the coordinates. Getting the regions positioned and sized is easy using a visual tool…much better than doing it by hand. This, of course, isn't a full treatise on the tool but it should give you enough information to decide if it's helpful. I hope someone finds this useful Steve Wellens

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• ODI 11g – How to Load Using Partition Exchange

  - by David Allan

  Here we will look at how to load large volumes of data efficiently into the Oracle database using a mixture of CTAS and partition exchange loading. The example we will leverage was posted by Mark Rittman a couple of years back on Interval Partitioning, you can find that posting here. The best thing about ODI is that you can encapsulate all those ‘how to’ blog posts and scripts into templates that can be reused – the templates are of course Knowledge Modules. The interface design to mimic Mark's posting is shown below; The IKM I have constructed performs a simple series of steps to perform a CTAS to create the stage table to use in the exchange, then lock the partition (to ensure it exists, it will be created if it doesn’t) then exchange the partition in the target table. You can find the IKM Oracle PEL.xml file here. The IKM performs the follows steps and is meant to illustrate what can be done; So when you use the IKM in an interface you configure the options for hints (for parallelism levels etc), initial extent size, next extent size and the partition variable;   The KM has an option where the name of the partition can be passed in, so if you know the name of the partition then set the variable to the name, if you have interval partitioning you probably don’t know the name, so you can use the FOR clause. In my example I set the variable to use the date value of the source data FOR (TO_DATE(''01-FEB-2010'',''dd-MON-yyyy'')) Using a variable lets me invoke the scenario many times loading different partitions of the same target table. Below you can see where this is defined within ODI, I had to double single-quote the strings since this is placed inside the execute immediate tasks in the KM; Note also this example interface uses the LKM Oracle to Oracle (datapump), so this illustration uses a lot of the high performing Oracle database capabilities – it uses Data Pump to unload, then a CreateTableAsSelect (CTAS) is executed on the external table based on top of the Data Pump export. This table is then exchanged in the target. The IKM and illustrations above are using ODI 11.1.1.6 which was needed to get around some bugs in earlier releases with how the variable is handled...as far as I remember.

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• Social Targeting: Who Do You Think You’re Talking To?

  - by Mike Stiles

  Are you the kind of person that tries to sell Clay Aiken CD’s outside Warped Tour concert venues? Then you don’t think a lot about targeting your messages to the right audience. For your communication to pack the biggest punch it can, you need to know where to throw it. And a recent study on social demographics might help you see social targeting in a whole new light. Pingdom’s annual survey of social network demographics shows us first of all that there is no gender difference between Facebook and Twitter. Both are 40% male, 60% female. If you’re looking for locales that lean heavily male, that would be Slashdot, Hacker News and Stack Overflow. The women are dominating Pinterest, Goodreads and Blogger. So what about age? 55% of tweeters are 35 and up, compared with 63% at Pinterest, 65% at Facebook and 70% at LinkedIn. As you can tell, LinkedIn supports the oldest user base, with the average member being 44. The average age at Facebook is 51, and it’s 37 at Twitter. If you want to aim younger, have you met Orkut yet? 83% of its users are under 35. The next sites in order as great candidates for the young market are deviantART, Hacker News, Hi5, Github, and Reddit. I know, other than Reddit, many of you might be saying “who?” But the list could offer an opportunity to look at the vast social world beyond Facebook, Twitter and Google+ (which Pingdom did not include in the survey at all due to a lack of accessible data). As for the average age of social users overall: 26% are 25-34 25% are 35-44 19% are 45-54 16% are 18-24  6% are 55-64  5% are 0-17  and 2% are 65 Now you know where you stand on the “cutting edge” scale for a person your age. You’re welcome. Certainly such demographics are a moving target and need to be watched and reassessed on a regular basis to make sure you’re moving in step with the people you want to talk to. For instance, since Pingdom’s survey last year, the age of the average Facebook user has gone up 2 years, while the age of the average Twitter user has gone down 2 years. With the targeting and analytics tools available on today’s social management platforms, there’s little need to market in the dark. Otherwise, good luck with those Clay CD’s.

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• SQL SERVER – NTFS File System Performance for SQL Server

  - by pinaldave

  Note: Before practicing any of the suggestion of this article, consult your IT Infrastructural Admin, applying the suggestion without proper testing can only damage your system. Question: “Pinal, we have 80 GB of data including all the database files, we have our data in NTFS file system. We have proper backups are set up. Any suggestion for our NTFS file system performance improvement. Our SQL Server box is running only SQL Server and nothing else. Please advise.” When I receive questions which I have just listed above, it often sends me deep thought. Honestly, I know a lot but there are plenty of things, I believe can be built with community knowledge base. Today I need you to help me to complete this list. I will start the list and you help me complete it. NTFS File System Performance Best Practices for SQL Server Disable Indexing on disk volumes Disable generation of 8.3 names (command: FSUTIL BEHAVIOR SET DISABLE8DOT3 1) Disable last file access time tracking (command: FSUTIL BEHAVIOR SET DISABLELASTACCESS 1) Keep some space empty (let us say 15% for reference) on drive is possible (Only on Filestream Data storage volume) Defragement the volume Add your suggestions here… The one which I often get a pretty big debate is NTFS allocation size. I have seen that on the disk volume which stores filestream data, when increased allocation to 64K from 4K, it reduces the fragmentation. Again, I suggest you attempt this after proper testing on your server. Every system is different and the file stored is different. Here is when I would like to request you to share your experience with related to NTFS allocation size. If you do not agree with any of the above suggestions, leave a comment with reference and I will modify it. Please note that above list prepared assuming the SQL Server application is only running on the computer system. The next question does all these still relevant for SSD – I personally have no experience with SSD with large database so I will refrain from comment. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Separating physics and game logic from UI code

  - by futlib

  I'm working on a simple block-based puzzle game. The game play consists pretty much of moving blocks around in the game area, so it's a trivial physics simulation. My implementation, however, is in my opinion far from ideal and I'm wondering if you can give me any pointers on how to do it better. I've split the code up into two areas: Game logic and UI, as I did with a lot of puzzle games: The game logic is responsible for the general rules of the game (e.g. the formal rule system in chess) The UI displays the game area and pieces (e.g. chess board and pieces) and is responsible for animations (e.g. animated movement of chess pieces) The game logic represents the game state as a logical grid, where each unit is one cell's width/height on the grid. So for a grid of width 6, you can move a block of width 2 four times until it collides with the boundary. The UI takes this grid, and draws it by converting logical sizes into pixel sizes (that is, multiplies it by a constant). However, since the game has hardly any game logic, my game logic layer [1] doesn't have much to do except collision detection. Here's how it works: Player starts to drag a piece UI asks game logic for the legal movement area of that piece and lets the player drag it within that area Player lets go of a piece UI snaps the piece to the grid (so that it is at a valid logical position) UI tells game logic the new logical position (via mutator methods, which I'd rather avoid) I'm not quite happy with that: I'm writing unit tests for my game logic layer, but not the UI, and it turned out all the tricky code is in the UI: Stopping the piece from colliding with others or the boundary and snapping it to the grid. I don't like the fact that the UI tells the game logic about the new state, I would rather have it call a movePieceLeft() method or something like that, as in my other games, but I didn't get far with that approach, because the game logic knows nothing about the dragging and snapping that's possible in the UI. I think the best thing to do would be to get rid of my game logic layer and implement a physics layer instead. I've got a few questions regarding that: Is such a physics layer common, or is it more typical to have the game logic layer do this? Would the snapping to grid and piece dragging code belong to the UI or the physics layer? Would such a physics layer typically work with pixel sizes or with some kind of logical unit, like my game logic layer? I've seen event-based collision detection in a game's code base once, that is, the player would just drag the piece, the UI would render that obediently and notify the physics system, and the physics system would call a onCollision() method on the piece once a collision is detected. What is more common? This approach or asking for the legal movement area first? [1] layer is probably not the right word for what I mean, but subsystem sounds overblown and class is misguiding, because each layer can consist of several classes.

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• ATI Radeon HD 4650 AGP Video card not recognized properly

  - by PastorLarry

  I have an ASUS ATI Radeon HD 4650 AGP in this system (yeah, I know how old it is). I've been on Ubuntu since 10.04, and the system has never properly recognized the card. I have always had the VESA drivers installed. Now that I have the time to address the problem, 12.04 was listing the card as "Unknown" under the System Settings. Meanwhile, Sysinfo recognizes the card as: Advanced Micro Devices [AMD] nee ATI RV730 Pro AGP [Radeon HD 4600 Series] (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device 0028 So I know that this card should be using the radeon driver (or even the radeonhd driver). However, when I installed the mesa-utils package, the card is suddenly reported as: Gallium 0.4 on llvmpipe (LLVM 0x300) So now, I'm completely at a loss. It seems that the llvmpipe stuff has to do with OpenGL, but it still appears that I don't have the proper video driver installed. That being said, anyone know what I can do to force the system to recognize the card and use the radeon driver? [EDIT 05.28] I did look at some other information, including glxinfo and a couple of other commands (it was REALLY late, so I don't remember the other commands) and I got these: glxinfo | grep vendor: server glx vendor string: SGI client glx vendor string: Mesa Project and SGI OpenGL vendor string: X.org glxinfo | grep renderer: OpenGL renderer string: Gallium 0.4 on AMD RV730 One of the other commands gave a whole lot of info and near the end stated that the activation string for the radeon driver was "modprobe radeon". I've tried that from sudo and as root, but it doesn't seem to change anything. I'm at a complete loss. I've even added the xorg-edgers ppa to my Software Sources and updated and rebooted the system, but nothing has changed. Most of all, I can't seem to find any documentation on this issue, as it seems that it's assumed that the radeon driver will install automatically, no questions asked. I feel like such a newbie. Does anyone have any ideas on this? [edit 05.28] results of lsmod | grep radeon (in a more readable format than the comment below): radeon 733693 3 ttm 65344 1 radeon drm_kms_helper 45466 1 radeon drm 197692 5 radeon,ttm,drm_kms_helper i2c_algo_bit 13199 1 radeon [edit 05.29] This is my /etc/X11/xorg.conf: Section "ServerLayout" Identifier "aticonfig Layout" Screen 0 "aticonfig-Screen[0]-0" 0 0 EndSection Section "Module" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]-0" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection Section "Screen" Identifier "aticonfig-Screen[0]-0" So here is my question. Can I simply change the name of the driver in the device section to "radeon" instead of "fglrx" and have the radeon driver work? Or is ther a way to use this as a tmeplate and change the appropriate lines and activate the radeon driver through this file?

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• Fun with Sun Ray, 3D, Oracle VM x86 and SRIOV

  - by wim.coekaerts

  One of the things I like about my job is that I get to play around with stuff and make use of the technologies we work on in my teams. Sort of my own little playground. It allows me to study the products in great detail and put them to use in ways that individual product teams don't always intend them to be used for :) but that makes it fun. I have a lot of this set up at home because... work is sort of hobby and I just like to tinker with it. Anyway, a few weeks ago I was looking at my sun ray rig at home and how well 3D works. Google Earth and some basic opengl tests like glxspheres combined with virtualgl. It resulted in some very cool demos recorded with my little camera (sorry for the crappy quality of the video :-) : OVDC (soft client) on my mac Sun Ray 2FS Never mind the hickups during zoom, that's because I was using the scrollwheel on my mouse and I can't scroll uninterrupted :) Anyway, this is quite cool ! The setup for this was the following : Sun Ray on LAN, Sun Ray Server 5 latest installed on OL5.5 inside a VM running on Oracle VM 2.2 (hardware virt, with a virtual network (vif)) and the virtualgl rendering happened on another box (wopr5) that runs linux on a little atom D520 with an ION2 gpu. So network goes from Sun Ray to Sun Ray Server to wopr5 and back. Given that this is full screen 3D it puts a good amount of load on the network and it's pretty cool that SRS was just a VM :) So, separately, I had written a little blog entry about using sriov and oracle vm a while back. link to sriov blog entry Last night when I came home I wanted to do some more playing around with SRIOV and live migrate. To do this, I wanted to set up a VM with 2 network interfaces, one virtual network (vif) and then one that's one of the SRIOV virtual functions from my network card. Inside the guest they show as eth0 and eth1, and then bond them using a standard linux bonding device (bond0 here) with active active links. The goal here is that on live migrate, we would detach the VF (eth1 in guest in this case), the bond would then just hum along on eth0 (vif) we can live migrate the VM and then on the other server after the migrate completes we re-attach a VF to the VM there and eth1 pops up again and the bond uses both eth0/eth1 to do its work. So, to set this up, I figured, why not use my sun ray server VM because the 3D work generates a nice network load and is very latency/timing sensitive. In the end, I ran glxspheres on my sunray server (vm) displaying on my sun ray 2 fs and while that was running, I did my live migrate test of this vm (unplug pci VF, migrate, reconnect vf) and guess what, it just kept running :) veryyyyyy cool. now, it was supposed to, but it's always nice to see it actually work, for real. Here's a diagram of it. No gimics - just real technology at work ! enjoy :)

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• Speed Up the Help Dialog in Windows and Office

  - by Matthew Guay

  When you click help, you don’t want to wait for your computer to bring it to you.  Here’s how you can speed up the help dialog in Windows and Office. If you have a slow internet connection, chances are you’ve been frustrated by the Help dialog in Windows and Office trying to download fresh content every time you open them. This can be great if the updated help files contain better content, but sometimes you just want to find what you were looking for without waiting.  Here’s how you can turn off the automatic online help. Use Local Help in Windows Windows 7 and Vista’s help dialog usually tries to load the latest content from the net, but this can take a long time on slow connections. If you’re seeing the above screen a lot, you may want to switch to offline help.  Click the “Online Help” button at the bottom, and select “Get offline Help”. Now your computer will just load the pre-installed help files.  And don’t worry; if there’s a major update to your help files, Windows will download and install it through Windows Update.   Stupid Geek Tip: An easy way to open Windows Help is to click on your desktop or Start Menu and press F1 on your keyboard. Use Local Help in Office This same trick works in Office 2007 and 2010.  We’ve actually had more problems with Office’s help being tardy. Solve this the same way as with Windows help.  Click on the “Connected to Office.com” or “Connected to Office Online” button, depending on your version of Office, and select “Show content only from this computer”. This will automatically change the settings for Help in all of your Office applications. While this may not be a major trick, it can be helpful especially if you have a slow internet connection and want to get things done quickly.  Similar Articles Productive Geek Tips How to See the About Dialog and Version Information in Office 2007Speed Up SATA Hard Drives in Windows VistaMake Mouse Navigation Faster in WindowsSpeed up Your Windows Vista Computer with ReadyBoostSet the Speed Dial as the Opera Startup Page 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 DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 FoxClocks adds World Times in your Statusbar (Firefox) Have Fun Editing Photo Editing with Citrify Outlook Connector Upgrade Error Gadfly is a cool Twitter/Silverlight app Enable DreamScene in Windows 7 Microsoft’s “How Do I ?” Videos

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• links for 2010-04-22

  - by Bob Rhubart

  Barry N. Perkins: Unique Business Value vs. Unique IT "Some solutions may look good today, solving a budget challenge by reducing cost, or solving a specific tactical challenge, but result in highly complex environments, that may be difficult to manage and maintain and limit the future potential of your business. Put differently, some solutions might push today's challenge into the future, resulting in a more complex and expensive solution." -- Barry N. Perkins, VP Oracle Modernization & Oracle Integrated Solutions (tags: oracle otn enterprisearchitecture modernization) Paul Homchick: The Information Driven Value Chain - Part 2 Paul Homchick continues his series with a look "at the way investments have been made in enterprise software in an effort to create and manage value, and how systems are moving from a controlled-process approach design towards gathering and using dynamically using information." (tags: oracle otn enterprisearchitecture) @vambenepe: The battle of the Cloud Frameworks: Application Servers redux? "The battle of the Cloud Frameworks has started," says William Vambenepe, "and it will look a lot like the battle of the Application Servers which played out over the last decade and a half." (tags: oracle otn cloud frameworks appserver) @ORACLENERD: COLLABORATE: Day 4 Wrap Up Oraclenerd feesses up: "The day started out with the realization that I pulled off the best (COLLABORATE - self annointed) prank ever. Twitter was...all atwitter about the fact that Mark Rittman was Oracle's Person of the Year. Of course it wasn't true. If you look at the picture, you'll realize that he's wearing exactly the same clothes in the magazine cover as he is in real life." (tags: collaborate2010 oracleace) Oracle's Hal Stern at Cloud Expo: "We've Moved from 'What' to 'How'" | Cloud Computing Journal "Hal also spoke a bit about building 'a sustainable IT model.' By this, he said he didn't mean the various Green IT and similar efforts that 'are all about data center efficiency. I think the operational model is just as important. Many enterprises are managing a tremendous amount of complexity, and it's hard to make this sustainable.'" -- Cloud News Desk (tags: oracle cloud cloudexpo halstern) @ORACLENERD: COLLABORATE: The Beach Party "Then tiki statues somehow were incorporated into various dances" -- Oracle ACE Chet "oraclenerd" Justice (tags: 0racle otn oracleace collaborate2010 oaug ioug lasvegas) David Andrews: Collaborate Day Two "Collaborate 2010 has focused on helping attendees understand what is already available and how to make more effective use of it. This does not sound exciting but it is extremely valuable. Most customers use only a small fraction of the capability of the products they already own. Helping them understand all the additional things they could be doing without buying anything more is very valuable." -- David Andrews (tags: oracle oaug collaborate2010 ioug)

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• New Pluralsight Course: HTML5 Canvas Fundamentals

  - by dwahlin

    I just finished up a new course for Pluralsight titled HTML5 Canvas Fundamentals that I had a blast putting together. It’s all about the client and involves a lot of pixel manipulation and graphics creation which is challenging and fun at the same time. The goal of the course is to walk you through the fundamentals, start a gradual jog into the API functions, and then start sprinting as you learn how to build a business chart canvas application from scratch that uses many of the available APIs . It’s fun stuff and very useful in a variety of scenarios including Web (desktop or mobile) and even Windows 8 Metro applications. Here’s a sample video from the course that talks about building a simple bar chart using the HTML5 Canvas:   Additional details about the course are shown next.   HTML5 Canvas Fundamentals The HTML5 Canvas provides a powerful way to render graphics, charts, and other types of visual data without relying on plugins such as Flash or Silverlight. In this course you’ll be introduced to key features available in the canvas API and see how they can be used to render shapes, text, video, images, and more. You’ll also learn how to work with gradients, perform animations, transform shapes, and build a custom charting application from scratch. If you’re looking to learn more about using the HTML5 Canvas in your Web applications then this course will break down the learning curve and give you a great start!    Getting Started with the HTML5 Canvas Introduction HTML5 Canvas Usage Scenarios Demo: Game Demos Demo: Engaging Applications Demo: Charting HTML5 Canvas Fundamentals Hello World Demo Overview of the Canvas API Demo: Canvas API Documentation Summary    Drawing with the HTML5 Canvas Introduction Drawing Rectangles and Ellipses Demo: Simple Bar Chart Demo: Simple Bar Chart with Transforms Demo: Drawing Circles Demo: Using arcTo() Drawing Lines and Paths Demo: Drawing Lines Demo: Simple Line Chart Demo: Using bezierCurveTo() Demo: Using quadraticCurveTo() Drawing Text Demo: Filling, Stroking, and Measuring Text Demo: Using Canvas Transforms with Text Drawing Images Demo: Using Image Functions Drawing Videos Demo: Syncing Video with a Canvas Summary    Manipulating Pixels  Introduction Rendering Gradients Demo: Creating Linear Gradients Demo: Creating Radial Gradients Using Transforms Demo: Getting Started with Transform Functions Demo: Using transform() and and setTransform() Accessing Pixels Demo: Creating Pixels Dynamically Demo: Grayscale Pixels Animation Fundamentals Demo: Getting Started with Animation Demo: Using Gradients, Transforms, and Animations Summary    Building a Custom Data Chart Introduction Creating the CanvasChart Object Creating the CanvasChart Shell Code Rendering Text and Gradients Rendering Data Points Text and Guide Lines Connecting Data Point Lines Rendering Data Points Adding Animation Adding Overlays and Interactivity Summary     Related Courses:  

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• ASP.Net 4.5 Garbage Collection Improvement

  - by Aligned

  Originally posted on: http://geekswithblogs.net/Aligned/archive/2013/06/24/asp.net-4.5-garbage-collection-improvement.aspxI just read Five Great .NET Framework 4.5 Features on CodeProject by Shivprasad koirala. Feature 5 in his article mentions the GC background cleanup and has a good explanation of the work the GC has to do for ASP.Net on the server. “Garbage collector is one real heavy task in a .NET application. And it becomes heavier when it is an ASP.NET application. ASP.NET applications run on the server and a lot of clients send requests to the server thus creating loads of objects, making the GC really work hard for cleaning up unwanted objects.” “To overcome the above problem, server GC was introduced. In server GC there is one more thread created which runs in the background. This thread works in the background and keeps cleaning…objects thus minimizing the load on the main GC thread. Due to double GC threads running, the main application threads are less suspended, thus increasing application throughput. To enable server GC, we need to use the gcServer XML tag and enable it to true.” <configuration> <runtime> <gcServer enabled="true"/> </runtime> </configuration> This is not done by default. The MSDN information page says “There are only two garbage collection options, workstation or server. For single-processor computers, the default workstation garbage collection should be the fastest option. Either workstation or server can be used for two-processor computers. Server garbage collection should be the fastest option for more than two processors. Use the GCSettingsIsServerGC property to determine if server garbage collection is enabled.” “In the .NET Framework 4 and earlier versions, concurrent garbage collection is not available when server garbage collection is enabled. Starting with the .NET Framework 4.5, server garbage collection is concurrent. To use non-concurrent server garbage collection, set the <gcServer> element to true and the <gcConcurrent> element to false. “ So if you’re using ASP.Net 4.5 and have a multi-core server, you should try turning on the Server Garbage Collection and do some profiling to see if it improves the performance of your site.

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• Best development architecture for a small team of programmers ( WAMP Stack )

  - by Tio

  Hi all.. I'm in the first month of work in a new company.. and after I met the two programmer's and asked how things are organized in terms of projects inside the company, they simply shrug their shoulders, and said that nothing is organized.. I think my jaw hit the ground that same time.. ( I know some, of you think I should quit, but I'm on a privileged position, I'm the most experienced there, so there's room for me to grow inside the company, and I'm taking the high road ).. So I talked to the IT guy, and one of the programmers, and maybe this week I'm going to get a server all to myself to start organizing things. I've used various architectures in my previous work experiences, on one I was developing in a server on the network ( no source control of course ).. another experience I had was developing in my local computer, with no server on the network, just source control. And at home, I have a mix of the two, everything I code is on a server on the network, and I have those folders under source control, and I also have a no-ip account configured on that server so I can access it everywhere and I can show the clients anything. For me I think this last solution ( the one I have at home ) is the best: Network server with WAMP stack. The server as a public IP so we can access it by domain name. And use subdomains for each project. Everybody works directly on the network server. I think the problem arises, when two or more people want to work on the same project, in this case the only way to do this is by using source control and local repositories, this is great, but I think this turns development a lot more complicated. In the example I gave, to make a change to the code, I would simply need to open the file in my favorite editor, make the change, alter the database, check in the changes into source control and presto all done. Using local repositories, I would have to get the latest version, run the scripts on the local database to update it, alter the file, alter the database, check in the changes to the network server, update the database on the network server, see if everything is running well on the network server, and presto all done, to me this seems overcomplicated for a change on a simple php page. I could share the database for the local development and for the network server, that sure would help. Maybe the best way to do this is just simply: Network server with WAMP stack ( test server so to speak ), public server accessible trough the web. LAMP stack on every developer computer ( minus the database ) We develop locally, test, then check in the changes into the server test and presto. What do you think? Maybe I should start doing this at home.. Thanks and best regards... Edit: I'm sorry I made a mistake and switched WAMP with LAMP, sorry about that..

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• System Variables, Stored Procedures or Functions for Meta Data

  - by BuckWoody

  Whenever you want to know something about SQL Server’s configuration, whether that’s the Instance itself or a database, you have a few options. If you want to know “dynamic” data, such as how much memory or CPU is consumed or what a particular query is doing, you should be using the Dynamic Management Views (DMVs) that you can read about here: http://msdn.microsoft.com/en-us/library/ms188754.aspx  But if you’re looking for how much memory is installed on the server, the version of the Instance, the drive letters of the backups and so on, you have other choices. The first of these are system variables. You access these with a SELECT statement, and they are useful when you need a discrete value for use, say in another query or to put into a table. You can read more about those here: http://msdn.microsoft.com/en-us/library/ms173823.aspx You also have a few stored procedures you can use. These often bring back a lot more data, pre-formatted for the screen. You access these with the EXECUTE syntax. It is a bit more difficult to take the data they return and get a single value or place the results in another table, but it is possible. You can read more about those here: http://msdn.microsoft.com/en-us/library/ms187961.aspx Yet another option is to use a system function, which you access with a SELECT statement, which also brings back a discrete value that you can use in a test or to place in another table. You can read about those here: http://msdn.microsoft.com/en-us/library/ms187812.aspx  By the way, many of these constructs simply query from tables in the master or msdb databases for the Instance or the system tables in a user database. You can get much of the information there as well, and there are even system views in each database to show you the meta-data dealing with structure – more on that here: http://msdn.microsoft.com/en-us/library/ms186778.aspx  Some of these choices are the only way to get at a certain piece of data. But others overlap – you can use one or the other, they both come back with the same data. So, like many Microsoft products, you have multiple ways to do the same thing. And that’s OK – just research what each is used for and how it’s intended to be used, and you’ll be able to select (pun intended) the right choice. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• Detecting if someone is in a room in your house and sending you an email.

  - by mbcrump

  Let me setup this scenario: You are selling your house. You have small children. (Possibly 2 rug rats or more) The real estate company calls and says they have a showing for your house between the hours of 3pm-6pm. You have to keep the children occupied. You realize this is the 5th time you have shown your house this week. What is a programmer to do?……Setup a webcam, find a motion detection software that has support to launch a program and of course, Visual Studio 2010. First, comes the tools Some sort of webcam, I chose the WinBook because a friend of mine loaned it to me. It is a basic USB2.0 camera that supports 640x480 without software.  Next up was find webcam software that supports launching a program. WebcamXP support this. VS 2010 Console Application. A cell phone that you can check your email. You may be asking, why write code to send the email when a lot of commercial software motion detection packages include that as base functionality. Well, first it cost money and second I don’t want the picture of the person as that probably invades privacy and as a future buyer, I don’t want someone recording me in their house. Now onto the show... First, the code part. We are going to create a VS2010 or whatever version you have installed and use the following code snippet. Code Snippet using System; using System.Net.Mail; using System.Net;     namespace MotionDetectionEmailer {     class Program     {         static void Main(string[] args)         {             try             {                 MailMessage m = new MailMessage                    ("[email protected]",                     "[email protected]",                     "Motion Detected at " + DateTime.Now,                     "Someone is in the downstairs basement.");                 SmtpClient client = new SmtpClient("smtp.charter.net");                 client.Credentials = new NetworkCredential("mbcrump", "NOTTELLINGYOU");                 client.Send(m);             }               catch (SmtpException ex)             {                 Console.WriteLine("Who cares?? " + ex.ToString());             }         }       } } Second, Download and install wecamxp and select the option to launch an external program and you are finished. Now, when you are at MCDonalds and can check your email on your phone, you will see when they entered the house and you can go back home without waiting the full 3 hours. --- NICE!

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• SQL SERVER – CSVExpress and Quick Data Load

  - by pinaldave

  One of the newest ETL tools is CSVexpress.com.  This is a program that can quickly load any CSV file into ODBC compliant databases uses data integration.  For those of you familiar with databases and how they operate, the question that comes to mind might be what use this program will have in your life. I have written earlier article on this subject over here SQL SERVER – Import CSV into Database – Transferring File Content into a Database Table using CSVexpress. You might know that RDBMS have automatic support for loading CSV files into tables – but it is not quite as easy as one click of a button.  First of all, most databases have a command line interface and you need the file and configuration script in order to load up.  You also need to know enough to write the script – which for novices can be extremely daunting.  On top of all this, if you work with more than one type of RDBMS, you need to know the ins and outs of uploading and writing script for more than one program. So you might begin to see how useful CSVexpress.com might be!  There are many other tools that enable uploading files to a database.  They can be very fancy – some can generate configuration files automatically, others load the data directly.  Again, novices will be able to tell you why these aren’t the most useful programs in the world.  You see, these programs were created with SQL in mind, not for uploading data.  If you don’t have large amounts of data to upload, getting the configurations right can be a long process and you will have to check the code that is generated yourself.  Not exactly “easy to use” for novices. That makes CSVexpress.com one of the best new tools available for everyone – but especially people who don’t want to learn a lot of new material all at once.  CSVexpress has an easy to navigate graphical user interface and no scripting or coding is required.  There are built-in constraints and data validations, and you can configure transforms and reject records right there on the screen.  But the best thing of all – it’s free! That’s right, you can download CSVexpress for free from www.csvexpress.com and start easily uploading and configuring riles almost immediately.  If you’re currently happy with your method of data configuration, keep up with the good work.  For the rest of us, there’s CSVexpress.com. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL Utility, T SQL, Technology

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• Reasons to Use a VM For Development

  - by George Stocker

  Background: I work at a start-up company, where one team uses Virtual Machines to connect to a remote server to do their development, and another team (the team I'm on) uses local IIS/SQL Server 2005/Visual Studio installations to conduct work. Team VM is located about 1000 miles from Team Non-VM, and the servers the VMs run off of are located near Team VM (Latency, for those that are wondering, is about 50ms). A person high in the company is pushing for Team Non-VM to use virtual machines for programming, development, and testing. The latter point we agree on -- we want Virtual Machines to test configurations and various aspects of the web application in a 'clean' state. The Problem: What we don't agree on is having developers using RDP to connect to a desktop remotely that contains Visual Studio, SQL Server, and IIS to do the same development we could do locally on our laptops. I've tried the VM set-up, and besides the color issue, there is a latency issue that is rather noticeable, not to mention that since we're a start-up, a good number of employees work from home on occasion with our work laptops, and this move would cut off the laptops. They'd be turned in. Reasons to Use Remote VMs for Development (Not Testing!): Here are the stated reasons that this person wants us to use VMs: They work for TeamVM. They keep the source code "safe". If we want to work from home, we could just use our home PCs. Licenses (I don't know what the argument is, only that it's been used). Reasons not to use Remote VMs for Development: Here are the stated reasons why we don't want to use VMs: We like working from home. We get a lot done on our own time. We're not going to use our Home PCs to do work related stuff. The Latency is noticeable. Support for the VMs (if they go down, or if we need a new VM) takes a while. We don't have administrative privileges on the VM, and are unable to change settings as needed. What I'm looking for from the community is this: What reasons would you give for not using VMs for development? Keep in mind these are remote VMs -- this isn't a VM running on a local desktop. It's using the laptop (or a desktop) as a thin client for a remote VM. Also, on the other side of the coin: Is there something we're missing that makes VMs more palatable for development? Edit: I think 'safe' is used in term of corporate espionage, or more correctly if the Laptop gets stolen, the person who stole would have access to our source code. The former (as we've pointed out, is always going to be a possibility -- companies stop that with litigation, there isn't a technical solution (so far as I can see)). The latter point is ( though I don't know its usefulness in a corporate scenario) mitigated by Truecrypt'ing the entire volume.

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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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• Summit Old, Summit New, Summit Borrowed...

  - by Rob Farley

  PASS Summit is coming up, and I thought I’d post a few things. Summit Old... At the PASS Summit, you will get the chance to hear presentations by the SQL Server establishment. Just about every big name in the SQL Server world is a regular at the PASS Summit, so you will get to hear and meet people like Kalen Delaney (@sqlqueen) (who just recently got awarded MVP status for the 20th year running), and from all around the world such as the UK’s Chris Webb (@technitrain) or Pinal Dave (@pinaldave) from India. Almost all the household names in SQL Server will be there, including a large contingent from Microsoft. The PASS Summit is by far the best place to meet the legends of SQL Server. And they’re not all old. Some are, but most of them are younger than you might think. ...Summit New... The hottest topics are often about the newest technologies (such as SQL Server 2012). But you will almost certainly learn new stuff about older versions too. But that’s not what I wanted to pick on for this point. There are many new speakers at every PASS Summit, and content that has not been covered in other places. This year, for example, LobsterPot’s Roger Noble (@roger_noble) is giving a presentation for the first time. He’s a regular around the Australian circuit, but this is his first time presenting to a US audience. New Zealand’s Paul White (@sql_kiwi) is attending his first PASS Summit, and will be giving over four hours of incredibly deep stuff that has never been presented anywhere in the US before (I can’t say the world, because he did present similar material in Adelaide earlier in the year). ...Summit Borrowed... No, I’m not talking about plagiarism – the talks you’ll hear are all their own work. But you will get a lot of stuff you’ll be able to take back and apply at work. The PASS Summit sessions are not full of sales-pitches, telling you about how great things could be if only you’d buy some third-party vendor product. It’s simply not that kind of conference, and PASS doesn’t allow that kind of talk to take place. Instead, you’ll be taught techniques, and be able to download scripts and slides to let you perform that magic back at work when you get home. You will definitely find plenty of ideas to borrow at the PASS Summit. ...Summit Blue Yeah – and there’s karaoke. Blue - Jason - SQL Karaoke - YouTube

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• “Play Now” via website vs. download & install

  - by Inside

  I've spent some time looking over the various threads here on GDSE and also on the regular Stackoverflow site, and while I saw a lot of posts and threads regarding various engines that could be used in game development, I haven't seen very much discussion regarding the various platforms that they can be used on. In particular, I'm talking about browser games vs. desktop games. I want to develop a simple 3D networked multiplayer game - roughly on the graphics level of Paper Mario and gameplay with roughly the same level of interaction as a hack & slash action/adventure game - and I'm having a hard time deciding what platform I want to target with it. I have some experience with using C++/Ogre3D and Python/Panda3D (and also some synchronized/networked programming), but I'm wondering if it's worth it to spend the extra time to learn another language and another engine/toolkit just so that the game can be played in a browser window (I'm looking at jMonkeyEngine right now). Is it worth it to go with engines that are less-mature, have less documentation, have fewer features, and smaller communities* just so that a (possibly?) larger audience can be reached? Does it make sense to even go with a web-environment for the kind of game that I want to make? Does anyone have any experiences with decisions like this? (* With the exception of Flash-based engines it seems like most of the other approaches have downsides when compared to what is available for desktop-based environments. I'd go with Flash, but I'm worried that Flash's 3D capabilities aren't mature enough right now to do what I want easily. There's also Unity3D, but I'm not sure how I feel about that at all. It seems highly polished, but requires a plugin to be downloaded for the game to be played -- at that rate I might as well have players download my game.) For simple & short games the Newgrounds approach (go to the site, click "play now", instant gratification) seems to work well. What about for more complex games? Is there a point where the complexity of a game is enough for people to say "OK, I'm going to download and play that"?

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• Too Few Women in IT!

  - by Yolande

  Last year, only 1% of attendees at Devoxx were women . This year, Devoxx addressed the issue in a panel entitled "Why We Should Target Women." On the panel were Kim Ross, Régina ten Bruggencate, Trisha Gee, Antonio Goncalves and Claude Falguiére. The moderator was Martijn Verburg. The discussion focused on how to attract women to programming and how to get current women programmers to be more active in the community. The panelists agreed that the IT field should not just attract more women but also men of different ethnic backgrounds. The lack of women in programming is in part a cultural issue that differs from region to region. In developed countries, very few women work as programmers whereas in Brazil and India a lot of women pursue careers in IT.  Women in developed countries perceive the field as isolating and very few young women graduate in computer science.  This perception of isolation was based in reality decades ago, but that is no longer the case today. Main ideas discussed by the panel: - Parents should encourage their daughters to play with Lego and learn programming - More organizations should target girls in high schools and young women in university to expose them to programming.  Duchess organization is planning on being more involved with young girl events and mentoring. - Women tend to be more self-critical about their skills and are intimidated by high skill requirements in job advertisements. Companies should change job advertisements to get more women to interviews. - Panelists don't recommend affirmative action because women feel favored and lose credibility. They want to be judged for their skills. - Panelists recommend acting the same way when dealing with either female or male co-workers and managers - Women need mentors (men or women) to learn to become speakers at conferences and to promote themselves better - Men should be sensitive to the fact that women are alone at work to respond to men teasing. The balance of power at work is different from a social setting. - Men also experience discrimination on the job. It is more difficult for men to take time off when their children are sick, for example. Equal valuing of parental obligations could result in equal pay for women. See also: Trisha Gee Blog - http://mechanitis.blogspot.com/ Duchess Organization - http://www.jduchess.org/

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• Entity Framework 4.0: Optimal and horrible SQL

  - by DigiMortal

  Lately I had Entity Framework 4.0 session where I introduced new features of Entity Framework. During session I found out with audience how Entity Framework 4.0 can generate optimized SQL. After session I also showed guys one horrible example about how awful SQL can be generated by Entity Framework. In this posting I will cover both examples. Optimal SQL Before going to code take a look at following model. There is class called Event and I will use this class in my query. Here is the LINQ To Entities query that uses small anonymous type. var query = from e in _context.Events             select new { Id = e.Id, Title = e.Title }; Debug.WriteLine(((ObjectQuery)query).ToTraceString()); Running this code gives us the following SQL. SELECT      [Extent1].[event_id] AS [event_id],      [Extent1].[title] AS [title]  FROM [dbo].[events] AS [Extent1] This is really small – no additional fields in SELECT clause. Nice, isn’t it? Horrible SQL Ayende Rahien blog shows us darker side of Entiry Framework 4.0 queries. You can find comparison betwenn NHibernate, LINQ To SQL and LINQ To Entities from posting What happens behind the scenes: NHibernate, Linq to SQL, Entity Framework scenario analysis. In this posting I will show you the resulting query and let you think how much better it can be done. Well, it is not something we want to see running in our servers. I hope that EF team improves generated SQL to acceptable level before Visual Studio 2010 is released. There is also morale of this example: you should always check out the queries that O/R-mapper generates. Behind the curtains it may silently generate queries that perform badly and in this case you need to optimize you data querying strategy. Conclusion Entity Framework 4.0 is new product with a lot of new features and it is clear that not everything is 100% super in its first release. But it still great step forward and I hope that on 12.04.2010 we have new promising O/R-mapper available to use in our projects. If you want to read more about Entity Framework 4.0 and Visual Studio 2010 then please feel free to follow this link to list of my Visual Studio 2010 and .NET Framework 4.0 postings.

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• Should I choose Doctrine 2 or Propel 1.5/1.6, and why?

  - by Billy ONeal

  I'd like to hear from those who have used Doctrine 2 (or later) and Propel 1.5 (or later). Most comparisons between these two object relational mappers are based on old versions -- Doctrine 1 versus Propel 1.3/1.4, and both ORMs went through significant redesigns in their recent revisions. For example, most of the criticism of Propel seems to center around the "ModelName Peer" classes, which are deprecated in 1.5 in any case. Here's what I've accumulated so far (And I've tried to make this list as balanced as possible...): Propel Pros Extremely IDE friendly, because actual code is generated, instead of relying on PHP magic methods. This means IDE features like code completion are actually helpful. Fast (In terms of database usage -- no runtime introspection is done on the database) Clean migration between schema versions (at least in the 1.6 beta) Can generate PHP 5.3 models (i.e. namespaces) Easy to chain a lot of things into a single database query with things like useXxx methods. (See the "code completion" video above) Cons Requires an extra build step, namely building the model classes. Generated code needs rebuilt whenever Propel version is changed, a setting is changed, or the schema changes. This might be unintuitive to some and custom methods applied to the model are lost. (I think?) Some useful features (i.e. version behavior, schema migrations) are in beta status. Doctrine Pros More popular Doctrine Query Language can express potentially more complicated relationships between data than easily possible with Propel's ActiveRecord strategy. Easier to add reusable behaviors when compared with Propel. DocBlock based commenting for building the schema is embedded in the actual PHP instead of a separate XML file. Uses PHP 5.3 Namespaces everywhere Cons Requires learning an entirely new programming language (Doctrine Query Language) Implemented in terms of "magic methods" in several places, making IDE autocomplete worthless. Requires database introspection and thus is slightly slower than Propel by default; caching can remove this but the caching adds considerable complexity. Fewer behaviors are included in the core codebase. Several features Propel provides out of the box (such as Nested Set) are available only through extensions. Freakin' HUGE :) This I have gleaned though only through reading the documentation available for both tools -- I've not actually built anything yet. I'd like to hear from those who have used both tools though, to share their experience on pros/cons of each library, and what their recommendation is at this point :)

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• Automated build platform for .NET portfolio - best choice?

  - by jkohlhepp

  I am involved with maintaining a fairly large portfolio of .NET applications. Also in the portfolio are legacy applications built on top of other platforms - native C++, ECLIPS Forms, etc. I have a complex build framework on top of NAnt right now that manages the builds for all of these applications. The build framework uses NAnt to do a number of different things: Pull code out of Subversion, as well as create tags in Subversion Build the code, using MSBuild for .NET or other compilers for other platforms Peek inside AssemblyInfo files to increment version numbers Do deletes of certain files that shouldn't be included in builds / releases Releases code to deployment folders Zips code up for backup purposes Deploy Windows services; start and stop them Etc. Most of those things can be done with just NAnt by itself, but we did build a couple of extension tasks for NAnt to do some things that were specific to our environment. Also, most of those processes above are genericized and reused across a lot of our different application build scripts, so that we don't repeat logic. So it is not simple NAnt code, and not simple build scripts. There are dozens of NAnt files that come together to execute a build. Lately I've been dissatisfied with NAnt for a couple reasons: (1) it's syntax is just awful - programming languages on top of XML are really horrific to maintain, (2) the project seems to have died on the vine; there haven't been a ton of updates lately and it seems like no one is really at the helm. Trying to get it working with .NET 4 has cause some pain points due to this lack of activity. So, with all of that background out of the way, here's my question. Given some of the things that I want to accomplish based on that list above, and given that I am primarily in a .NET shop, but I also need to build non-.NET projects, is there an alternative to NAnt that I should consider switching to? Things on my radar include Powershell (with or without psake), MSBuild by itself, and rake. These all have pros and cons. For example, is MSBuild powerful enough? I remember using it years ago and it didn't seem to have as much power as NAnt. Do I really want to have my team learn Ruby just to do builds using rake? Is psake really mature enough of a project to pin my portfolio to? Is Powershell "too close to the metal" and I'll end up having to write my own build library akin to psake to use it on its own? Are there other tools that I should consider? If you were involved with maintaining a .NET portfolio of significant complexity, what build tool would you be looking at? What does your team currently use?

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• &ldquo;Our Users are Doing Something Surprising&rdquo;&hellip; but what?

  - by antonio romero

  I’ve just started a discussion on the OWB Linkedin Group based on a blog post from Laura Klein’s “Users Know” blog, entitled “Your Users are Doing Something Surprising”… As a PM I found the post thought-provoking and a good reminder to learn from our customers: ...You may have written user stories and work flows... But you know who didn’t read your user stories? That’s right: your users. The result? Somewhere out there, a whole lot of your users are doing something totally unexpected with your product.... Your customers want to do something with your product so badly that they’re going out of their way to come up with clever ways to do it on their own. There are three excellent reasons for you to know what your customers are actually doing with your product: So you know if you are missing an opportunity to pivot your product or marketing So you know if you are missing an important feature So you don’t accidentally destroy a commonly used workaround or "unplanned feature" Truer words were rarely blogged. In fact just in the last few weeks I have had several "users" (some customers, and some internal to Oracle, in fact) turn up having built unexpected but powerful things around OWB, because it has such extensibility mechanisms built into it: OMB*Plus, the old Java APIs back before 10.2, and now the code template/knowledge module framework OWB shares with ODI. Some of our external users show astounding knowledge of how to make OWB really sing. (We hope to feature case studies from several of them over the course of the year on the OWB blog.) My question to all of you: can you identify things you have done or are doing with OWB or that you depend on in it that you think would come as a surprise to us? This could be either some development so advanced as to leave us all gob-smacked, or just some common (to you) thing that you use it for that you find enormously valuable but that you think is a bit off the theoretical "main line" use case of loading data warehouses. I invite the readers of this blog to come visit the OWB and ODI LinkedIn group and share their unusual applications of OWB or the very ordinary-looking features that you don’t want us to forget or would like us to extend. Your anecdotes will impress the crowd and will also help shape future data integration products from Oracle... Come on, surprise us. :)

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