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• Syntactic sugar in PHP with static functions

  - by Anna

  The dilemma I'm facing is: should I use static classes for the components of an application just to get nicer looking API? Example - the "normal" way: // example component class Cache{ abstract function get($k); abstract function set($k, $v); } class APCCache extends Cache{ ... } class application{ function __construct() $this->cache = new APCCache(); } function whatever(){ $this->cache->add('blabla'); print $this->cache->get('blablabla'); } } Notice how ugly is this->cache->.... But it gets waay uglier when you try to make the application extensible trough plugins, because then you have to pass the application instance to its plugins, and you get $this->application->cache->... With static functions: interface CacheAdapter{ abstract function get($k); abstract function set($k, $v); } class Cache{ public static $ad; public function setAdapter(CacheAdapter $a){ static::$ad = $ad; } public static function get($k){ return static::$ad->get($k); } ... } class APCCache implements CacheAdapter{ ... } class application{ function __construct(){ cache::setAdapter(new APCCache); } function whatever() cache::add('blabla', 5); print cache::get('blabla'); } } Here it looks nicer because you just call cache::get() everywhere. The disadvantage is that I loose the possibility to extend this class easily. But I've added a setAdapter method to make the class extensible to some point. I'm relying on the fact that I won't need to rewrite to replace the cache wrapper, ever, and that I won't need to run multiple application instances simultaneously (it's basically a site - and nobody works with two sites at the same time) So, am doing it wrong?

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• Granting rights to the sa account using osql

  - by Jan Jongboom

  I'm installing sql instances through script, and after creating a certain instance, I cannot get the sa account to be enabled through osql. What I've tried osql -S .\INSTANCENAME -E use master ALTER LOGIN sa ENABLE GO Using SSMS to enable the account (by logging in using Windows Auth., 'New query', and exactly the same query as in 1.) Suggestions in this issue No. 2. is actually working; and the account is enabled instantly. No 1 is not working, not even with the suggestions provided in 3., I have restarted the SQL services after executing the commands in osql. Additional info Windows 2003 Server, Microsoft SQL Server 2005 Enterprise, No password policies apply to the account.

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• Oracle Magazine: Getting started with SQL Analytics

  - by KLaker

  I am currently working on a series of podcasts covering the broad categories of our SQL analytical functions and features and while I was doing some research I came across of series of four articles in the Oracle Magazine. This series of article is written by Melanie Caffrey who is a senior development manager at Oracle. She is a coauthor of Expert PL/SQL Practices for Oracle Developers and DBAs (Apress, 2011) and Expert Oracle Practices: Oracle Database Administration from the Oak Table (Apress, 2010). The four articles are under the banner "Technology: SQL 101" and parts 9, 10, 11 and 12 cover SQL analytics. Here are the links to the four articles: Jan 2013 Having Sums, Averages, and Other Grouped Data March 2013 A Window into the World of Analytic Functions May 2013 Leading Ranks and Lagging Percentages: Analytic Functions, Continued July 2013 Pivotal Access to Your Data: Analytic Functions, Concluded The articles cover topics such as GROUP BY, SUM, AVG, HAVING, window functions, RANK, FIRST, LAST, LAG, LEAD etc.   The great news is that  you can try out the examples in this series. All you need is access to an Oracle Database instance. All the schemas, data sets and SQL statements that you will need can be downloaded from a link included in the January article.    I hope you find this series of articles useful.

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• How to set printer permissions using PowerShell / some other script?

  - by Borek

  I need to update printer's permissions in a script, i.e. do the same as I would manually do this way: Open Devices and Printers applet Double-click the default printer (open its queue) Go to Printer - Properties In the properties dialog, go to Security tab Change permissions for Everyone (e.g., check Manage documents permissions) How to do that? For example, in PowerShell, I can do Get-WmiObject -class win32_printer -filter Default=True to get the default printer and there are then methods getSecurityDescriptor() and setSecurityDescriptor() but for instance this command: (Get-WmiObject -class win32_printer -filter Default=True).getsecuritydescriptor().Descriptor return null so I'm not sure if I'm doing it the right way. Does anyone have a working example to set printer permissions? Am I on the right path or should I use something other than WMI entirely? Thanks.

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• Unit Testing Framework for XQuery

  - by Knut Vatsendvik

  This posting provides a unit testing framework for XQuery using Oracle Service Bus. It allows you to write a test case to run your XQuery transformations in an automated fashion. When the test case is run, the framework returns any differences found in the response. The complete code sample with install instructions can be downloaded from here. Writing a Unit Test You start a new Test Case by creating a Proxy Service from Workshop that comes with Oracle Service Bus. In the General Configuration page select Service Type to be Messaging Service           In the Message Type Configuration page link both the Request & Response Message Type to the TestCase element of the UnitTest.xsd schema                 The TestCase element consists of the following child elements The ID and optional Name element is simply used for reference. The Transformation element is the XQuery resource to be executed. The Input elements represents the input to run the XQuery with. The Output element represents the expected output. These XML documents are “also” represented as an XQuery resource where the XQuery function takes no arguments and returns the XML document. Why not pass the test data with the TestCase? Passing an XML structure in another XML structure is not very easy or at least not very human readable. Therefore it was chosen to represent the test data as an loadable resource in the OSB. However you are free to go ahead with another approach on this if wanted. The XMLDiff elements represents any differences found. A sample on input is shown here. Modeling the Message Flow Then the next step is to model the message flow of the Proxy Service. In the Request Pipeline create a stage node that loads the test case input data.      For this, specify a dynamic XQuery expression that evaluates at runtime to the name of a pre-registered XQuery resource. The expression is of course set by the input data from the test case.           Add a Run stage node. Assign the result of the XQuery, that is to be run, to a context variable. Define a mapping for each of the input variables added in previous stage.     Add a Compare stage. Like with the input data, load the expected output data. Do a compare using XMLDiff XQuery provided where the first argument is the loaded output test data, and the second argument the result from the Run stage. Any differences found is replaced back into the test case XMLDiff element. In case of any unexpected failure while processing, add an Error Handler to the Pipeline to capture the fault. To pass back the result add the following Insert action In the Response Pipeline. A sample on output is shown here.

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• Server 2012 GPO: PowerShell Script on Computer Startup not running

  - by Alex

  I've got a couple of Server 2012 instances on Amazon EC2 and I'm in the process of setting up the GPOs. All of the settings of the GPOs are being applied fine, except none of the PowerShell scripts specified on computer startup are actually being executed. The scripts are sitting on a UNC share which has Authenticated Users applied to it with full permissions. I'm assuming it probably has something to do with the Execution Policy, but I'm not sure how to automatically bypass it. I could just go in each instance and bypass the Execution Policy, but that's obviously not a good idea, plus I'm eventually going to connect Windows 7 computers that will be running the same scripts. How can I get the scripts to actually run? Google searches hasn't yielded a whole lot...

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• Are project managers useful in Scrum?

  - by Martin Wickman

  There are three roles defined in Scrum: Team, Product Owner and Scrum Master. There is no project manager, instead the project manager job is spread across the three roles. For instance: The Scrum Master: Responsible for the process. Removes impediments. The Product Owner: Manages and prioritizes the list of work to be done to maximize ROI. Represents all interested parties (customers, stakeholders). The Team: Self manage its work by estimating and distributing it among themselves. Responsible for meeting their own commitments. So in Scrum, there is no longer a single person responsible for project success. There is no command-and-control structure in place. That seems to baffle a lot of people, specifically those not used to agile methods, and of course, PM's. I'm really interested in this and what your experiences are, as I think this is one of the things that can make or break a Scrum implementation. Do you agree with Scrum that a project manager is not needed? Do you think such a role is still required? Why?

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• Ubuntu 10.04 not detecting multiple monitors

  - by user28837

  I have 2 graphics cards, the output from the lspci: 01:00.0 VGA compatible controller: ATI Technologies Inc RV770 [Radeon HD 4850] 02:00.0 VGA compatible controller: ATI Technologies Inc RV710 [Radeon HD 4350] I have one monitor connected to the 4850 and 2 connected to the 4350. However when I go into System Preferences Monitors the only monitor shown is the one connected to the 4850. Is there something I need to enable for it to be able to use the other card? How do I get this to work. Thanks. As per request: X.Org X Server 1.7.6 Release Date: 2010-03-17 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-25-server i686 Ubuntu Current Operating System: Linux jeff-desktop 2.6.32-22-generic-pae #33-Ubuntu SMP Wed Apr 28 14:57:29 UTC 2010 i686 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic-pae root=UUID=852e1013-4ed6-40fd-a462-c29087888383 ro quiet splash Build Date: 23 April 2010 05:11:50PM xorg-server 2:1.7.6-2ubuntu7 (Bryce Harrington <[email protected]>) Current version of pixman: 0.16.4 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Tue May 11 08:24:52 2010 (==) Using config file: "/etc/X11/xorg.conf" (==) Using config directory: "/usr/lib/X11/xorg.conf.d" (==) No Layout section. Using the first Screen section. (**) |-->Screen "Default Screen" (0) (**) | |-->Monitor "<default monitor>" (==) No device specified for screen "Default Screen". Using the first device section listed. (**) | |-->Device "Default Device" (==) No monitor specified for screen "Default Screen". Using a default monitor configuration. (==) Automatically adding devices (==) Automatically enabling devices (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. Entry deleted from font path. (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/100dpi/:unscaled, /usr/share/fonts/X11/75dpi/:unscaled, /usr/share/fonts/X11/Type1, /usr/share/fonts/X11/100dpi, /usr/share/fonts/X11/75dpi, /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, built-ins (==) ModulePath set to "/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules" (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. (II) Loader magic: 0x81f0e80 (II) Module ABI versions: X.Org ANSI C Emulation: 0.4 X.Org Video Driver: 6.0 X.Org XInput driver : 7.0 X.Org Server Extension : 2.0 (++) using VT number 7 (--) PCI:*(0:1:0:0) 1002:9442:174b:e104 ATI Technologies Inc RV770 [Radeon HD 4850] rev 0, Mem @ 0xc0000000/268435456, 0xfe7e0000/65536, I/O @ 0x0000a000/256, BIOS @ 0x????????/131072 (--) PCI: (0:2:0:0) 1002:954f:1462:1618 ATI Technologies Inc RV710 [Radeon HD 4350] rev 0, Mem @ 0xd0000000/268435456, 0xfe8e0000/65536, I/O @ 0x0000b000/256, BIOS @ 0x????????/131072 (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory) (II) "extmod" will be loaded by default. (II) "dbe" will be loaded by default. (II) "glx" will be loaded. This was enabled by default and also specified in the config file. (II) "record" will be loaded by default. (II) "dri" will be loaded by default. (II) "dri2" will be loaded by default. (II) LoadModule: "glx" (II) Loading /usr/lib/xorg/extra-modules/modules/extensions/libglx.so (II) Module glx: vendor="FireGL - ATI Technologies Inc." compiled for 7.5.0, module version = 1.0.0 (II) Loading extension GLX (II) LoadModule: "extmod" (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so (II) Module extmod: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension MIT-SCREEN-SAVER (II) Loading extension XFree86-VidModeExtension (II) Loading extension XFree86-DGA (II) Loading extension DPMS (II) Loading extension XVideo (II) Loading extension XVideo-MotionCompensation (II) Loading extension X-Resource (II) LoadModule: "dbe" (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so (II) Module dbe: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DOUBLE-BUFFER (II) LoadModule: "record" (II) Loading /usr/lib/xorg/modules/extensions/librecord.so (II) Module record: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.13.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension RECORD (II) LoadModule: "dri" (II) Loading /usr/lib/xorg/modules/extensions/libdri.so (II) Module dri: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension XFree86-DRI (II) LoadModule: "dri2" (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so (II) Module dri2: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.1.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DRI2 (II) LoadModule: "fglrx" (II) Loading /usr/lib/xorg/extra-modules/modules/drivers/fglrx_drv.so (II) Module fglrx: vendor="FireGL - ATI Technologies Inc." compiled for 1.7.1, module version = 8.72.11 Module class: X.Org Video Driver (II) Loading sub module "fglrxdrm" (II) LoadModule: "fglrxdrm" (II) Loading /usr/lib/xorg/extra-modules/modules/linux/libfglrxdrm.so (II) Module fglrxdrm: vendor="FireGL - ATI Technologies Inc." compiled for 1.7.1, module version = 8.72.11 (II) ATI Proprietary Linux Driver Version Identifier:8.72.11 (II) ATI Proprietary Linux Driver Release Identifier: 8.723.1 (II) ATI Proprietary Linux Driver Build Date: Apr 8 2010 21:40:29 (II) Primary Device is: PCI 01@00:00:0 (WW) Falling back to old probe method for fglrx (II) Loading PCS database from /etc/ati/amdpcsdb (--) Assigning device section with no busID to primary device (WW) fglrx: No matching Device section for instance (BusID PCI:0@2:0:0) found (--) Chipset Supported AMD Graphics Processor (0x9442) found (WW) fglrx: No matching Device section for instance (BusID PCI:0@1:0:1) found (WW) fglrx: No matching Device section for instance (BusID PCI:0@2:0:1) found (**) ChipID override: 0x954F (**) Chipset Supported AMD Graphics Processor (0x954F) found (II) AMD Video driver is running on a device belonging to a group targeted for this release (II) AMD Video driver is signed (II) fglrx(0): pEnt->device->identifier=0x9428aa0 (II) pEnt->device->identifier=(nil) (II) fglrx(0): === [atiddxPreInit] === begin (II) Loading sub module "vgahw" (II) LoadModule: "vgahw" (II) Loading /usr/lib/xorg/modules/libvgahw.so (II) Module vgahw: vendor="X.Org Foundation" compiled for 1.7.6, module version = 0.1.0 ABI class: X.Org Video Driver, version 6.0 (II) fglrx(0): Creating default Display subsection in Screen section "Default Screen" for depth/fbbpp 24/32 (**) fglrx(0): Depth 24, (--) framebuffer bpp 32 (II) fglrx(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps) (==) fglrx(0): Default visual is TrueColor (==) fglrx(0): RGB weight 888 (II) fglrx(0): Using 8 bits per RGB (==) fglrx(0): Buffer Tiling is ON (II) Loading sub module "fglrxdrm" (II) LoadModule: "fglrxdrm" (II) Reloading /usr/lib/xorg/extra-modules/modules/linux/libfglrxdrm.so ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:1:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 10, (OK) ukiOpenByBusid: ukiOpenMinor returns 10 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card1 ukiOpenDevice: open result is 10, (OK) ukiOpenByBusid: ukiOpenMinor returns 10 ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0 ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 11, (OK) ukiOpenByBusid: ukiOpenMinor returns 11 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 (--) fglrx(0): Chipset: "ATI Radeon HD 4800 Series" (Chipset = 0x9442) (--) fglrx(0): (PciSubVendor = 0x174b, PciSubDevice = 0xe104) (==) fglrx(0): board vendor info: third party graphics adapter - NOT original ATI (--) fglrx(0): Linear framebuffer (phys) at 0xc0000000 (--) fglrx(0): MMIO registers at 0xfe7e0000 (--) fglrx(0): I/O port at 0x0000a000 (==) fglrx(0): ROM-BIOS at 0x000c0000 (II) fglrx(0): AC Adapter is used (II) fglrx(0): Primary V_BIOS segment is: 0xc000 (II) Loading sub module "vbe" (II) LoadModule: "vbe" (II) Loading /usr/lib/xorg/modules/libvbe.so (II) Module vbe: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.1.0 ABI class: X.Org Video Driver, version 6.0 (II) fglrx(0): VESA BIOS detected (II) fglrx(0): VESA VBE Version 3.0 (II) fglrx(0): VESA VBE Total Mem: 16384 kB (II) fglrx(0): VESA VBE OEM: ATI ATOMBIOS (II) fglrx(0): VESA VBE OEM Software Rev: 11.13 (II) fglrx(0): VESA VBE OEM Vendor: (C) 1988-2005, ATI Technologies Inc. (II) fglrx(0): VESA VBE OEM Product: RV770 (II) fglrx(0): VESA VBE OEM Product Rev: 01.00 (II) fglrx(0): ATI Video BIOS revision 9 or later detected (--) fglrx(0): Video RAM: 524288 kByte, Type: GDDR3 (II) fglrx(0): PCIE card detected (--) fglrx(0): Using per-process page tables (PPPT) as GART. (WW) fglrx(0): board is an unknown third party board, chipset is supported (--) fglrx(0): Chipset: "ATI Radeon HD 4300/4500 Series" (Chipset = 0x954f) (--) fglrx(0): (PciSubVendor = 0x1462, PciSubDevice = 0x1618) (==) fglrx(0): board vendor info: third party graphics adapter - NOT original ATI (--) fglrx(0): Linear framebuffer (phys) at 0xd0000000 (--) fglrx(0): MMIO registers at 0xfe8e0000 (--) fglrx(0): I/O port at 0x0000b000 (==) fglrx(0): ROM-BIOS at 0x000c0000 (II) fglrx(0): AC Adapter is used (II) fglrx(0): Invalid ATI BIOS from int10, the adapter is not VGA-enabled (II) fglrx(0): ATI Video BIOS revision 9 or later detected (--) fglrx(0): Video RAM: 524288 kByte, Type: DDR2 (II) fglrx(0): PCIE card detected (--) fglrx(0): Using per-process page tables (PPPT) as GART. (WW) fglrx(0): board is an unknown third party board, chipset is supported (II) fglrx(0): Using adapter: 1:0.0. (II) fglrx(0): [FB] MC range(MCFBBase = 0xf00000000, MCFBSize = 0x20000000) (II) fglrx(0): Interrupt handler installed at IRQ 31. (II) fglrx(0): Using adapter: 2:0.0. (II) fglrx(0): [FB] MC range(MCFBBase = 0xf00000000, MCFBSize = 0x20000000) (II) fglrx(0): RandR 1.2 support is enabled! (II) fglrx(0): RandR 1.2 rotation support is enabled! (==) fglrx(0): Center Mode is disabled (II) Loading sub module "fb" (II) LoadModule: "fb" (II) Loading /usr/lib/xorg/modules/libfb.so (II) Module fb: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 ABI class: X.Org ANSI C Emulation, version 0.4 (II) Loading sub module "ddc" (II) LoadModule: "ddc" (II) Module "ddc" already built-in (II) fglrx(0): Finished Initialize PPLIB! (II) Loading sub module "ddc" (II) LoadModule: "ddc" (II) Module "ddc" already built-in (II) fglrx(0): Connected Display0: DFP on external TMDS [tmds2] (II) fglrx(0): Display0 EDID data --------------------------- (II) fglrx(0): Manufacturer: DEL Model: a038 Serial#: 810829397 (II) fglrx(0): Year: 2008 Week: 51 (II) fglrx(0): EDID Version: 1.3 (II) fglrx(0): Digital Display Input (II) fglrx(0): Max Image Size [cm]: horiz.: 53 vert.: 30 (II) fglrx(0): Gamma: 2.20 (II) fglrx(0): DPMS capabilities: StandBy Suspend Off (II) fglrx(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 (II) fglrx(0): Default color space is primary color space (II) fglrx(0): First detailed timing is preferred mode (II) fglrx(0): redX: 0.640 redY: 0.330 greenX: 0.300 greenY: 0.600 (II) fglrx(0): blueX: 0.150 blueY: 0.060 whiteX: 0.312 whiteY: 0.329 (II) fglrx(0): Supported established timings: (II) fglrx(0): 720x400@70Hz (II) fglrx(0): 640x480@60Hz (II) fglrx(0): 640x480@75Hz (II) fglrx(0): 800x600@60Hz (II) fglrx(0): 800x600@75Hz (II) fglrx(0): 1024x768@60Hz (II) fglrx(0): 1024x768@75Hz (II) fglrx(0): 1280x1024@75Hz (II) fglrx(0): Manufacturer's mask: 0 (II) fglrx(0): Supported standard timings: (II) fglrx(0): #0: hsize: 1152 vsize 864 refresh: 75 vid: 20337 (II) fglrx(0): #1: hsize: 1280 vsize 1024 refresh: 60 vid: 32897 (II) fglrx(0): #2: hsize: 1920 vsize 1080 refresh: 60 vid: 49361 (II) fglrx(0): Supported detailed timing: (II) fglrx(0): clock: 148.5 MHz Image Size: 531 x 298 mm (II) fglrx(0): h_active: 1920 h_sync: 2008 h_sync_end 2052 h_blank_end 2200 h_border: 0 (II) fglrx(0): v_active: 1080 v_sync: 1084 v_sync_end 1089 v_blanking: 1125 v_border: 0 (II) fglrx(0): Serial No: Y183D8CF0TFU (II) fglrx(0): Monitor name: DELL S2409W (II) fglrx(0): Ranges: V min: 50 V max: 76 Hz, H min: 30 H max: 83 kHz, PixClock max 170 MHz (II) fglrx(0): EDID (in hex): (II) fglrx(0): 00ffffffffffff0010ac38a055465430 (II) fglrx(0): 3312010380351e78eeee91a3544c9926 (II) fglrx(0): 0f5054a54b00714f8180d1c001010101 (II) fglrx(0): 010101010101023a801871382d40582c (II) fglrx(0): 4500132a2100001e000000ff00593138 (II) fglrx(0): 3344384346305446550a000000fc0044 (II) fglrx(0): 454c4c205332343039570a20000000fd (II) fglrx(0): 00324c1e5311000a2020202020200059 (II) fglrx(0): End of Display0 EDID data -------------------- (II) fglrx(0): Output DFP2 has no monitor section (II) fglrx(0): Output DFP_EXTTMDS has no monitor section (II) fglrx(0): Output CRT1 has no monitor section (II) fglrx(0): Output CRT2 has no monitor section (II) fglrx(0): Output DFP2 disconnected (II) fglrx(0): Output DFP_EXTTMDS connected (II) fglrx(0): Output CRT1 disconnected (II) fglrx(0): Output CRT2 disconnected (II) fglrx(0): Using exact sizes for initial modes (II) fglrx(0): Output DFP_EXTTMDS using initial mode 1920x1080 (II) fglrx(0): DPI set to (96, 96) (II) fglrx(0): Adapter ATI Radeon HD 4800 Series has 2 configurable heads and 1 displays connected. (==) fglrx(0): QBS disabled (==) fglrx(0): PseudoColor visuals disabled (II) Loading sub module "ramdac" (II) LoadModule: "ramdac" (II) Module "ramdac" already built-in (==) fglrx(0): NoAccel = NO (==) fglrx(0): NoDRI = NO (==) fglrx(0): Capabilities: 0x00000000 (==) fglrx(0): CapabilitiesEx: 0x00000000 (==) fglrx(0): OpenGL ClientDriverName: "fglrx_dri.so" (==) fglrx(0): UseFastTLS=0 (==) fglrx(0): BlockSignalsOnLock=1 (--) Depth 24 pixmap format is 32 bpp (II) Loading extension ATIFGLRXDRI (II) fglrx(0): doing swlDriScreenInit (II) fglrx(0): swlDriScreenInit for fglrx driver ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:1:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 17, (OK) ukiOpenByBusid: ukiOpenMinor returns 17 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card1 ukiOpenDevice: open result is 17, (OK) ukiOpenByBusid: ukiOpenMinor returns 17 ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0 (II) fglrx(0): [uki] DRM interface version 1.0 (II) fglrx(0): [uki] created "fglrx" driver at busid "PCI:1:0:0" (II) fglrx(0): [uki] added 8192 byte SAREA at 0x2000 (II) fglrx(0): [uki] mapped SAREA 0x2000 to 0xb6996000 (II) fglrx(0): [uki] framebuffer handle = 0x3000 (II) fglrx(0): [uki] added 1 reserved context for kernel (II) fglrx(0): swlDriScreenInit done (II) fglrx(0): Kernel Module Version Information: (II) fglrx(0): Name: fglrx (II) fglrx(0): Version: 8.72.11 (II) fglrx(0): Date: Apr 8 2010 (II) fglrx(0): Desc: ATI FireGL DRM kernel module (II) fglrx(0): Kernel Module version matches driver. (II) fglrx(0): Kernel Module Build Time Information: (II) fglrx(0): Build-Kernel UTS_RELEASE: 2.6.32-22-generic-pae (II) fglrx(0): Build-Kernel MODVERSIONS: yes (II) fglrx(0): Build-Kernel __SMP__: yes (II) fglrx(0): Build-Kernel PAGE_SIZE: 0x1000 (II) fglrx(0): [uki] register handle = 0x00004000 (II) fglrx(0): DRI initialization successfull! (II) fglrx(0): FBADPhys: 0xf00000000 FBMappedSize: 0x01068000 (II) fglrx(0): FBMM initialized for area (0,0)-(1920,2240) (II) fglrx(0): FBMM auto alloc for area (0,0)-(1920,1920) (front color buffer - assumption) (II) fglrx(0): Largest offscreen area available: 1920 x 320 (==) fglrx(0): Backing store disabled (II) Loading extension FGLRXEXTENSION (==) fglrx(0): DPMS enabled (II) fglrx(0): Initialized in-driver Xinerama extension (**) fglrx(0): Textured Video is enabled. (II) LoadModule: "glesx" (II) Loading /usr/lib/xorg/extra-modules/modules/glesx.so (II) Module glesx: vendor="X.Org Foundation" compiled for 1.7.1, module version = 1.0.0 (II) Loading extension GLESX (II) Loading sub module "xaa" (II) LoadModule: "xaa" (II) Loading /usr/lib/xorg/modules/libxaa.so (II) Module xaa: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.2.1 ABI class: X.Org Video Driver, version 6.0 (II) fglrx(0): GLESX enableFlags = 94 (II) fglrx(0): Using XFree86 Acceleration Architecture (XAA) Screen to screen bit blits Solid filled rectangles Solid Horizontal and Vertical Lines Driver provided ScreenToScreenBitBlt replacement Driver provided FillSolidRects replacement (II) fglrx(0): GLESX is enabled (II) LoadModule: "amdxmm" (II) Loading /usr/lib/xorg/extra-modules/modules/amdxmm.so (II) Module amdxmm: vendor="X.Org Foundation" compiled for 1.7.1, module version = 1.0.0 (II) Loading extension AMDXVOPL (II) fglrx(0): UVD2 feature is available (II) fglrx(0): Enable composite support successfully (II) fglrx(0): X context handle = 0x1 (II) fglrx(0): [DRI] installation complete (==) fglrx(0): Silken mouse enabled (==) fglrx(0): Using HW cursor of display infrastructure! (II) fglrx(0): Disabling in-server RandR and enabling in-driver RandR 1.2. (--) RandR disabled (II) Found 2 VGA devices: arbiter wrapping enabled (II) Initializing built-in extension Generic Event Extension (II) Initializing built-in extension SHAPE (II) Initializing built-in extension MIT-SHM (II) Initializing built-in extension XInputExtension (II) Initializing built-in extension XTEST (II) Initializing built-in extension BIG-REQUESTS (II) Initializing built-in extension SYNC (II) Initializing built-in extension XKEYBOARD (II) Initializing built-in extension XC-MISC (II) Initializing built-in extension SECURITY (II) Initializing built-in extension XINERAMA (II) Initializing built-in extension XFIXES (II) Initializing built-in extension RENDER (II) Initializing built-in extension RANDR (II) Initializing built-in extension COMPOSITE (II) Initializing built-in extension DAMAGE ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:1:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 18, (OK) ukiOpenByBusid: ukiOpenMinor returns 18 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card1 ukiOpenDevice: open result is 18, (OK) ukiOpenByBusid: ukiOpenMinor returns 18 ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0 (II) AIGLX: Loaded and initialized /usr/lib/dri/fglrx_dri.so (II) GLX: Initialized DRI GL provider for screen 0 (II) fglrx(0): Enable the clock gating! (II) fglrx(0): Setting screen physical size to 507 x 285 (II) XKB: reuse xkmfile /var/lib/xkb/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm (II) config/udev: Adding input device Power Button (/dev/input/event1) (**) Power Button: Applying InputClass "evdev keyboard catchall" (II) LoadModule: "evdev" (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so (II) Module evdev: vendor="X.Org Foundation" compiled for 1.7.6, module version = 2.3.2 Module class: X.Org XInput Driver ABI class: X.Org XInput driver, version 7.0 (**) Power Button: always reports core events (**) Power Button: Device: "/dev/input/event1" (II) Power Button: Found keys (II) Power Button: Configuring as keyboard (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device Power Button (/dev/input/event0) (**) Power Button: Applying InputClass "evdev keyboard catchall" (**) Power Button: always reports core events (**) Power Button: Device: "/dev/input/event0" (II) Power Button: Found keys (II) Power Button: Configuring as keyboard (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device Logitech USB-PS/2 Optical Mouse (/dev/input/event3) (**) Logitech USB-PS/2 Optical Mouse: Applying InputClass "evdev pointer catchall" (**) Logitech USB-PS/2 Optical Mouse: always reports core events (**) Logitech USB-PS/2 Optical Mouse: Device: "/dev/input/event3" (II) Logitech USB-PS/2 Optical Mouse: Found 12 mouse buttons (II) Logitech USB-PS/2 Optical Mouse: Found scroll wheel(s) (II) Logitech USB-PS/2 Optical Mouse: Found relative axes (II) Logitech USB-PS/2 Optical Mouse: Found x and y relative axes (II) Logitech USB-PS/2 Optical Mouse: Configuring as mouse (**) Logitech USB-PS/2 Optical Mouse: YAxisMapping: buttons 4 and 5 (**) Logitech USB-PS/2 Optical Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 (II) XINPUT: Adding extended input device "Logitech USB-PS/2 Optical Mouse" (type: MOUSE) (II) Logitech USB-PS/2 Optical Mouse: initialized for relative axes. (II) config/udev: Adding input device Logitech USB-PS/2 Optical Mouse (/dev/input/mouse1) (II) No input driver/identifier specified (ignoring) (II) config/udev: Adding input device Logitech USB Multimedia Keyboard (/dev/input/event4) (**) Logitech USB Multimedia Keyboard: Applying InputClass "evdev keyboard catchall" (**) Logitech USB Multimedia Keyboard: always reports core events (**) Logitech USB Multimedia Keyboard: Device: "/dev/input/event4" (II) Logitech USB Multimedia Keyboard: Found keys (II) Logitech USB Multimedia Keyboard: Configuring as keyboard (II) XINPUT: Adding extended input device "Logitech USB Multimedia Keyboard" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device Logitech USB Multimedia Keyboard (/dev/input/event5) (**) Logitech USB Multimedia Keyboard: Applying InputClass "evdev keyboard catchall" (**) Logitech USB Multimedia Keyboard: always reports core events (**) Logitech USB Multimedia Keyboard: Device: "/dev/input/event5" (II) Logitech USB Multimedia Keyboard: Found keys (II) Logitech USB Multimedia Keyboard: Configuring as keyboard (II) XINPUT: Adding extended input device "Logitech USB Multimedia Keyboard" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device KEYBOARD (/dev/input/event6) (**) KEYBOARD: Applying InputClass "evdev keyboard catchall" (**) KEYBOARD: always reports core events (**) KEYBOARD: Device: "/dev/input/event6" (II) KEYBOARD: Found keys (II) KEYBOARD: Configuring as keyboard (II) XINPUT: Adding extended input device "KEYBOARD" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device KEYBOARD (/dev/input/event7) (**) KEYBOARD: Applying InputClass "evdev keyboard catchall" (**) KEYBOARD: always reports core events (**) KEYBOARD: Device: "/dev/input/event7" (II) KEYBOARD: Found 14 mouse buttons (II) KEYBOARD: Found scroll wheel(s) (II) KEYBOARD: Found relative axes (II) KEYBOARD: Found keys (II) KEYBOARD: Configuring as mouse (II) KEYBOARD: Configuring as keyboard (**) KEYBOARD: YAxisMapping: buttons 4 and 5 (**) KEYBOARD: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 (II) XINPUT: Adding extended input device "KEYBOARD" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (EE) KEYBOARD: failed to initialize for relative axes. (II) config/udev: Adding input device KEYBOARD (/dev/input/mouse2) (II) No input driver/identifier specified (ignoring) (II) config/udev: Adding input device Macintosh mouse button emulation (/dev/input/event2) (**) Macintosh mouse button emulation: Applying InputClass "evdev pointer catchall" (**) Macintosh mouse button emulation: always reports core events (**) Macintosh mouse button emulation: Device: "/dev/input/event2" (II) Macintosh mouse button emulation: Found 3 mouse buttons (II) Macintosh mouse button emulation: Found relative axes (II) Macintosh mouse button emulation: Found x and y relative axes (II) Macintosh mouse button emulation: Configuring as mouse (**) Macintosh mouse button emulation: YAxisMapping: buttons 4 and 5 (**) Macintosh mouse button emulation: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 (II) XINPUT: Adding extended input device "Macintosh mouse button emulation" (type: MOUSE) (II) Macintosh mouse button emulation: initialized for relative axes. (II) config/udev: Adding input device Macintosh mouse button emulation (/dev/input/mouse0) (II) No input driver/identifier specified (ignoring) (II) fglrx(0): Restoring Recent Mode via PCS is not supported in RANDR 1.2 capable environments

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• Ubuntu 12.04 boot hangs with a black screen before grub menu after upgrade (gma500_gfx driver)

  - by Eric van der Vlist

  I am using Ubuntu on a fit-pc2 specifications and after upgrading from 10.04 to 12.04 I get a black screen at boot time (before displaying the grub menu) and the computer hangs with no disk activity. I have managed to boot Ubuntu 12.04 on a live USB key but had to add the following boot options to do so: console=tty1 or console=text acpi=off noapic nomodeset Using boot-repair, I have tried to add these options to /etc/default/grub (see this pastie log for instance) but I haven't been able to fix the black screen issue. I have tried many other things such as the workarounds mentioned on the web for PSB-GFX_drivers without any success and also to uncomment GRUB_TERMINAL=console with the result of getting a No video mode activated error. During these tests, I have managed to break /boot/grub/grub.cfg and could then hit grub in command line. This gave me the chance to check that I can boot without problem if I type: grub> set root=(hd0,1) grub> linux /vmlinuz root=/dev/sda1 ro acpi=off noapic nomodeset console=tty1 grub> initrd /initrd.img grub> boot How can I tell grub to use these options?

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• Firefox: This connection is untrusted + Behind corporate firewall

  - by espais

  I've seen some similar issues strewn throughout Google's results about this, but none seem to be corporate-specific. I continually get the 'This connection is untrusted' screen every time I attempt to log into a secure site...for instance Gmail. This is pretty annoying as sometimes I have to go through the process of adding the exception two or three times before it finally lets me into Gmail. I am behind a corporate firewall, going through an internal proxy server to get to the Internet, so there is no possibility for me to update the firewall...etc. Does anybody know a way around this? Can it simply be disabled (and is that safe)? EDIT I'm going to reopen this question with a bit of new information. I have been using Google Chrome lately until today, and one thing that I noticed was that I never had this issue when using either Chrome or Internet Explorer. Is there something that these other browsers do that I need to manually do in FF?

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• EC2 out of space on root disk, moving it to ephemeral

  - by Joseph Misiti

  I am spawning a few test servers on ec2 that happen to be m1.larges. I am using these test servers for load balancin testing. Anyways, most of the servers I have used before have been backed by EBS, but these instances (ubuntu 11.04) obviously come with a lot of ephemeral space located @ /mnt. What I noticed that is happening is I am running on space on the root disk. I am trying out this tutorial http://www.turnkeylinux.org/docs/using-instance-storage moving my /home + /usr directories to /mnt and then remounting them. This works except it does not survive a reboot. Am I missing something here or is this tutorial not completely correct. How do I make space on my / drive so I can do stuff and survive re-boots.

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• SQL Server Performance & Latching

  - by Colin

  I have a SQL server 2000 instance which runs several concurrent select statements on a group of 4 or 5 tables. Often the performance of the server during these queries becomes extremely diminished. The querys can take up to 10x as long as other runs of the same query, and it gets to the point where simple operations like getting the table list in object explorer or running sp_who can take several minutes. I've done my best to identify the cause of these issues, and the only performance metric which I've found to be off base is Average Latch Wait time. I've read that over 1 second wait time is bad, and mine ranges anywhere from 20 to 75 seconds under heavy use. So my question is, what could be the issue? Shouldn't SQL be able to handle multiple selects on a single table without losing so much performance? Can anyone suggest somewhere to go from here to investigate this problem? Thanks for the help.

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• New cloud development workflow using Github, Cloud9ide and CloudFoundry.

  - by weng

  So time is changing towards cloud development/computing. I'm trying to get the new "cloud" workflow based on the services I'm going to use: Github, Cloud9ide and CloudFoundry. Here is what is on my mind: Github acts like a central (main repo) just like yesterday's local filesystem. Every service will base it service upon this main repo. Workflow: Github: I create a new Github repo served as main repo for the project. Cloud9ide. I open my Github repo and write my tests and implementation (BDD/TDD). When I'm ready I save (commit) it to main repo on Github. X: A running instance of Jenkins detects someone has committed and fetches the latest commit, builds, deploys, tests (yeti and/or selenium) and reports if the tests were passed or not. If not, I make another commit til all tests are passing. X: I run the CloudFoundry commands to push the main Github repo to CloudFoundry's server and it will deploy my app automatically. What I'm still confused about is where this X environment will be. On a local server where I have to install Jenkins? Or could I install it on Cloud9ide (when java is supported) or will it be on another cloud service? Also, that X environment has to be able to fetch (clone) the Github repo and run the build scripts. And since the concept of Cloud9ide is very new and there haven't been any other predecessors I really wonder how the workflow will look like. We all know Github's workflow. We now know CloudFoundry's workflow (deploy/scale with a restful API/command line tool). But how Cloud9Ide will operate is still somewhat unclear to me. Someone on Cloud9ide mentioned that there will be buttons like deploy so I can deploy with one click. But that I guess will depend on what services that deploy process will hook up into etc. Could someone enlighten this cloud workflow topic and fill in the gaps. Thanks.

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• Remove IP address from the URL of website using apache

  - by sapatos

  I'm on an EC2 instance and have a domain domain.com linked to the EC2 nameservers and it happily is serving my pages if I type domain.com in the URL. However when the page is served it resolves the url to: 1.1.1.10/directory/page.php. Using apache I've set up the following VirtualHost, following examples provided at http://httpd.apache.org/docs/2.0/dns-caveats.html Listen 80 NameVirtualHost 1.1.1.10:80 <VirtualHost 1.1.1.10:80> DocumentRoot /var/www/html/directory ServerName domain.com # Other directives here ... <FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$"> Header set Cache-Control "max-age=290304000, public" </FilesMatch> </VirtualHost> However I'm not getting any changes to how the URL is displayed. This is the only VirtualHost configured on this site and I've confirmed its the one being used as I've managed to break it a number of times whilst experimenting with the configuration. The route53 entries I have are: domain.com A 1.1.1.10 domain.com NS ns-11.awsdns-11.com ns-111.awsdns-11.net ns-1111.awsdns-11.org ns-1111.awsdns-11.co.uk domain.com SOA ns-11.awsdns-11.com. awsdns-hostmaster.amazon.com. 1 1100 100 1101100 11100

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• Email client supporting multiple accounts

  - by TGP1994

  I've been using Microsoft Outlook for a very long time, although one thing that has bugged me is how multiple email accounts are handled. As far as I can tell, there isn't a set and straightforward way of managing multiple accounts in one instance of outlook. For example, when I create an email, saving it as a draft will by default dump it into the first personal folder that I have open, which in my current case, is not where I want it. I would like all trash, spam, drafts, contacts, etc. etc. to be handled on a PF by PF basis. Now to my question: Is there a way to accomplish the task of email account "segregation" in Outlook (2007 is my current version), or is there another client that handles this in a more organized fashion? Note: I don't use most of the features in outlook (I hardly even need special formatting for my messages), I generally just send and read mail, and get a few attachments, so leaving Outlook wouldn't be too much of a stretch for me.

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• Is this an apt-get issue or network issue?

  - by zharvey

  I just installed my first Ubuntu server (12.04) instance and immediately am noticing a few things: Running apt-get install or update fails (see below) Running ifconfig produces peculiar IP addresses starting with 10.x.x.x and my router does not see the server at all in its "Attached Devices" page (its a consumer grade Netgear) When I run apt-get I get 50+ of the following errors: Failed to fetch <some-http-url. Temporary failure resolving <blah.ubuntu.com I read up on this error for 12.04, and found some similar posts on this forum and on serverfault that recommended going into /etc/resolv.conf and adding an entry: nameserver 8.8.8.8 To my surprise, I found that /etc/resolve.conf was a symlink pointing to somewhere else and I had to delete it first, then create a new one with the entry indicated above. I restarted the server and tried running apt-get again: same results. How do I start diagnosing the problem (I'm a relatively new Linux/Ubuntu user)? Additional details that may help: This is actually a virtual machine running as a VirtualBox guest OS The physical host that is running this VM is my laptop which has a wireless connection; I'm wondering if (somehow) the laptop is getting the network wirelessly, but perhaps either the VBox VM and/or the Ubuntu server OS isn't configured for wireless and so nothing is "getting through"? Thanks in advance for any pointers! Edit: Here is a snapshot of my VM's Network settings (only Adapter 1 has any information populating its fields, so I assume my VM has only 1 adapter): Here is the output when I run ifconfig from the terminal: And here is the output when I run route from the terminal: Running ping google.com:

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• Why do programmers seem to be such bad spellers?

  - by Joel Etherton

  Programming languages are very precise tools based on explicit grammars. They're very picky, and when being used they require an exacting amount of detail. C#, for instance, is case sensitive so even getting the case of an argument wrong will cause an error. Questions asked all over the StackExchange are replete with misspellings, grammatical errors, and other problems that seem to indicate a lack of attention to detail when it comes to the language itself. Now, I understand there are a lot of programmers out there whose native language is not English, and I am not directing this question (rant one might say) at them. I'm referring to the individuals who are clearly from an English speaking background who refuse to pay attention to these simple details. I am not perfect by any means, but I try to use the language correctly so that my meaning will be understood correctly. I find programmers misspelling variable names, classes, and all manner of words in any kind of technical documentation they might write. I have had to withstand code where I am repeatedly referring to the subit[sic] button or HttpWebResponse reponse. The general complaint about bad spelling is one thing, and it will always be there. I accept that. But my question/comment is about the proclivity of bad spelling within the programming community. I would think that people who deal with such exacting tools to be more naturally predisposed towards proper spelling. Yet this doesn't seem to be the case.

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• Did the developers of Java conciously abandon RAII?

  - by JoelFan

  As a long-time C# programmer, I have recently come to learn more about the advantages of Resource Acquisition Is Initialization (RAII). In particular, I have discovered that the C# idiom: using (my dbConn = new DbConnection(connStr) { // do stuff with dbConn } has the C++ equivalent: { DbConnection dbConn(connStr); // do stuff with dbConn } meaning that remembering to enclose the use of resources like DbConnection in a using block is unnecessary in C++ ! This seems to a major advantage of C++. This is even more convincing when you consider a class that has an instance member of type DbConnection, for example class Foo { DbConnection dbConn; // ... } In C# I would need to have Foo implement IDisposable as such: class Foo : IDisposable { DbConnection dbConn; public void Dispose() { dbConn.Dispose(); } } and what's worse, every user of Foo would need to remember to enclose Foo in a using block, like: using (var foo = new Foo()) { // do stuff with "foo" } Now looking at C# and its Java roots I am wondering... did the developers of Java fully appreciate what they were giving up when they abandoned the stack in favor of the heap, thus abandoning RAII? (Similarly, did Stroustrup fully appreciate the significance of RAII?)

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• How does java permgen relate to code size

  - by brad

  I've been reading a lot about java memory management, garbage collecting et al and I'm trying to find the best settings for my limited memory (1.7g on a small ec2 instance) I'm wondering if there is a direct correlation between my code size and the permgen setting. According to sun: The permanent generation is special because it holds data needed by the virtual machine to describe objects that do not have an equivalence at the Java language level. For example objects describing classes and methods are stored in the permanent generation. To me this means that it's literally storing my class def'ns etc... Does this mean there is a direct correlation between my compiled code size and the permgen I should be setting? My whole app is about 40mb and i noticed we're using 256mb permgen. I'm thinking maybe we're using memory that could be better allocated to dynamic code like object instances etc...

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• Is inconsistent formatting a sign of a sloppy programmer?

  - by dreza

  I understand that everyone has their own style of programming and that you should be able to read other people's styles and accept it for what it is. However, would one be considered a sloppy programmer if one's style of coding was inconsistent across whatever standard they were working against? Some example of inconsistencies might be: Sometimes naming private variables with _ and sometimes not Sometimes having varying indentations within code blocks Not aligning braces up i.e. same column if using start using new line style Spacing not always consistent around operators i.e. p=p+1, p+=1 vs other times p =p+1 or p = p + 1 etc Is this even something that as a programmer I should be concerned with addressing? Or is it such a minor nit picking thing that at the end of the day I should just not worry about it and worry about what the end user sees and whether the code works rather than how it looks while working? Is it sloppy programming or just over obsessive nit picking? EDIT: After some excellent comments I realized I may have left out some information in my question. This question came about after reviewing another colleagues code check-in and noticing some of these things and then realizing that I've seen these kind of in-consistencies in previous check-ins. It then got me thinking about my code and whether I do the same things and noticed that I typically don't etc I'm not suggesting his technique is either bad or good in this question or whether his way of doing things is right or wrong. EDIT: To answer some queries to some more good feed back. The specific instance this review occurred in was using Visual Studio 2010 and programming in c# so I don't think the editor would cause any issues. In fact it should only help I would hope. Sorry if I left that piece of info out and it effects any current answers. I was trying to be a bit more generic in understanding if this would be considered sloppy etc. And to add an even more specific example of a code piece I saw during reading of the check-in: foreach(var block in Blocks) { // .. some other code in here foreach(var movement in movements) { movement.Moved.Zero(); } // the un-formatted brace } Such a minor thing I know, but many small things add up(???), and I did have to double glance at the code at the time to see where everything lined up I guess. Please note this code was formatted appropriately before this check-in. EDIT: After reading some great answers and varying thoughts, the summary I've taken from this was. It's not necessarily a sign of a sloppy programmer however as programmers we have a duty (to ourselves and other programmers) to make the code as readable as possible to assist in further ongoing development. However it can hint at inadequacies which is something that is only possible to review on a case by case (person by person) basis. There are many reasons why this might occur. They should be taken in context and worked through with the person/people involved if reasonable. We have a duty to try and help all programmers become better programmers! In the good old days when development was done using good old notepad (or other simple text editing tool) this occurred much more frequently. However we have the assistance of modern IDE's now so although we shouldn't necessarily become OTT about this, it should still probably be addressed to some degree. We as programmers vary in our standards, styles and approaches to solutions. However it seems that in general we all take PRIDE in our work and as a trait it is something that can stand programmers apart. Making something to the best of our abilities both internal (code) and external (end user result) goes along way to giving us that big fat pat on the back that we may not go looking for but swells our heart with pride. And finally to quote CrazyEddie from his post below. Don't sweat the small stuff

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• game multiplayer service development

  - by nomad

  I'm currently working on a multiplayer game. I've looked at a number of multiplayer services(player.io, playphone, gamespy, and others) but nothing really hits the mark. They are missing features, lack platform support or cost too much. What I'm looking for is a simple poor man's version of steam or xbox live. Not the game marketplace side of those two but the multiplayer services. User accounts, profiles, presence info, friends, game stats, invites, on/offline messaging. Basically I'm looking for a unified multiplayer platform for all my games across devices. Since I can't find what I'm planning to roll my own piece by piece. I plan to save on server resources by making most of the communication p2p. Things like game data and voice chat can be handled between peers and the server keeps track of user presence and only send updates when needed or requested. I know this runs the risk of cheating but that isn't a concern right now. I plan to run this on a Amazon ec2 micro server for development then move to a small to large instance when finished. I figure user accounts would be the simplest to start with. Users can create accounts online or using in game dialog, login/out, change profile info. The user can access this info online or in game. I will need user authentication and secure communication between server and client. I figure all info will be stored in a database but I dont know how it can be stored securely and accessed from webserver and game services. I would appreciate and links to tutorials, info or advice anyone could provide to get me started. Any programming language is fine but I plan to use c# on the server and c/c++ on devices. I would like to get started right away but I'm in no hurry to get it finished just yet. If you know of a service that already fits my requirements please let me know.

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• I can't access phpmyadmin on ubuntu after successfull installation

  - by Rana

  I have ready LAMP environment on my amazon Ec2 micro instance(Ubuntu). I have installed phpmyadmin distribution of ubuntu. selected apache2 as the server, then selected 'yes' for 'db-common-config' option. after its completed, I suppose to access it via http://server/phpmyadmin, right? But I can't access it. Is there any way to verify whether its been installed properly and running properly plz? Or do I have to do anything further? Thanks in advance.

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• CloudFormation - How to start a Windows Service with cfn-init

  - by Edwin

  I'm creating a CloudFormation Stack that will install and start a service on a Windows Instance. I've figured out how to install the service, but how do I start the service using cfn-init? The examples seem to all use linux, as there is a reference to "sysvinit" How do I structure AWS::CloudFormation::Init so that cfn-init will start windows services after installing them? Do I leave in the sysvinit, replace it with something else, take it out? ps: I'm referring to how to start services by providing information to AWS::CloudFormation::Init.services. Also, It would be nice to know how "packages" work for windows. AWS's announcemnet says that packages are supported on Windows but there is no Windows specific documentation

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• Some OBI EE Tricks and Tips in the Admin Tool By Gerry Langton

  - by hamsun

  How to set the log level from a Session variable Initialization block As we know it is normal to set the log level non-zero for a particular user when we wish to debug problems. However sometimes it is inconvenient to go into each user’s properties in the Admin tool and update the log level. So I am showing a method which allows the log level to be set for all users via a session initialization block. This is particularly useful for anyone wanting an alternative way to set the log level. The screen shots shown are using the OBIEE 11g SampleApp demo but are applicable to any environment. Open the appropriate rpd in on-line mode and navigate to Manage Variables. Select Session Initialization Blocks, right click in the white space and create a New Initialization Block. I called the Initialization block Set_Loglevel . Now click on ‘Edit Data Source’ to enter the SQL. Chose the ‘Use OBI EE Server’ option for the SQL. This means that the SQL provided must use tables which have been defined in the Physical layer of the RPD, and whilst there is no need to provide a connection pool you must work in On-Line mode. The SQL can access any of the RPD tables and is purely used to return a value of 2. The ‘Test’ button confirms that the SQL is valid. Next, click on the ‘Edit Data Target’ button to add the LOGLEVEL variable to the initialization block. Check the ‘Enable any user to set the value’ option so that this will work for any user. Click OK and the following message will display as LOGLEVEL is a system session variable: Click ‘Yes’. Click ‘OK’ to save the Initialization block. Then check in the On-LIne changes. To test that LOGLEVEL has been set, log in to OBIEE using an administrative login (e.g. weblogic) and reload server metadata, either from the Analysis editor or from Administration > Reload Files and Metadata link. Run a query then navigate to Administration > Manage Sessions and click ‘View Log’ for the query just issued (which should be approximately the last in the list). A log file should exist and with LOGLEVEL set to 2 should include both logical and physical sql. If more diagnostic information is required then set LOGLEVEL to a higher value. If logging is required only for a particular analysis then an alternative method can be used directly from the Analysis editor. Edit the analysis for which debugging is required and click on the Advanced tab. Scroll down to the Advanced SQL clauses section and enter the following in the Prefix box: SET VARIABLE LOGLEVEL = 2; Click the ‘Apply SQL’ button. The SET VARIABLE statement will now prefix the Analysis’s logical SQL. So that any time this analysis is run it will produce a log. You can find information about training for Oracle BI EE products here or in the OU Learning Paths. Please send me an email at [email protected] if you have any further questions. About the Author: Gerry Langton started at Siebel Systems in 1999 working as a technical instructor teaching both Siebel application development and also Siebel Analytics (which subsequently became Oracle BI EE). From 2006 Gerry has worked as Senior Principal Instructor within Oracle University specialising in Oracle BI EE, Oracle BI Publisher and Oracle Data Warehouse development for BI.

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• I love it when a plan comes together

  - by DavidWimbush

  I'm currently working on an application so that our Marketing department can produce most of their own mailing lists without my having to get involved. It was all going well until I got stuck on the bit where the actual SQL query is generated but a rummage in Books Online revealed a very clean solution using some constructs that I had previously dismissed as pointless. Typically we want to email every customer who is in any of the following n groups. Experience shows that a group has the following definition: <people who have done A> [(AND <people who have done B>) | (OR <people who have done C>)] [APART FROM <people who have done D>] When doing these by hand I've been using INNER JOIN for the AND, UNION for the OR, and LEFT JOIN + WHERE D IS NULL for the APART FROM. This would produce two quite different queries: -- Old OR select  A.PersonID from  (   -- A   select  PersonID   from  ...   union  -- OR   -- C   select  PersonID   from  ...   ) AorC   left join  -- APART FROM   (   select  PersonID   from  ...   ) D on D.PersonID = AorC.PersonID where  D.PersonID is null -- Old AND select  distinct main.PersonID from  (   -- A   select  PersonID   from  ...   ) A   inner join  -- AND   (   -- B   select  PersonID   from  ...   ) B on B.PersonID = A.PersonID   left join  -- APART FROM   (   select  PersonID   from  ...   ) D on D.PersonID = A.PersonID where  D.PersonID is null But when I tried to write the code that can generate the SQL for any combination of those (along with all the variables controlling what each SELECT did and what was in all the optional bits of each WHERE clause) my brain started to hurt. Then I remembered reading about the (then new to me) keywords INTERSECT and EXCEPT. At the time I couldn't see what they added but I thought I would have a play and see if they might help. They were perfect for this. Here's the new query structure: -- The way forward select  PersonID from  (     (       (       -- A       select  PersonID       from  ...       )       union      -- OR        intersect  -- AND       (       -- B/C       select  PersonID       from  ...       )     )     except     (     -- D     select  PersonID     from  ...     )   ) x I can easily swap between between UNION and INTERSECT, and omit B, C, or D as necessary. Elegant, clean and readable - pick any 3! Sometimes it really pays to read the manual.

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