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• Windows Resource Monitoring Programs

  - by Sal

  I work at a small tech start up managing websites with our own in house server side code. (In production, we use Windows Server 2008 boxes, running Java 6. In our dev boxes, we use Windows 7 running Java 7.) Recently, we had an issue where some of our boxes in production failed, and we didn't have means of trouble shooting, since we keep little to no monitoring logs about a given box's CPU/memory/RAM usage, etc. So, I'm wondering if there is some commercial/freeware that's the standard for performance monitoring/logging. Essentially, I'm just looking for an analytics system that is similar to the Windows Task Manager or the Resource Monitor, that serializes all of its data periodically. Ideally, I'd like to find a program that's also extensible, in case I'd like to add addition monitors in the future.

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• Passing values between Activities using MonoDroid

  - by Wallym

  Been doing some work in MonoDroid and found that I needed to pass a user entered value from on Activity to another Activity in MonoDroid.  Here's how I did it. In my sending Activity, I need to take some user user entered data and send it to my second activity.  Here is the code:             string UserId = Convert.ToString(et.Text);            if (!String.IsNullOrEmpty(UserId))            {                Intent i = new Intent();                i.SetClass(this, typeof(CustomList));                i.AddFlags(ActivityFlags.NewTask);                i.PutExtra("TwitterId", UserId);                StartActivity(i);            }  In this code, I have called .PutExtra and  passed it with a key.  In this case, I am passing a Twitter id.  In the code that is receiving the data, the code to retrieve the Twitter id is: string twitterId = Intent.GetStringExtra("TwitterId"); The call to GetStringExtra() returns the value passed on the key.

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• Sharing laptop's internal optical drive running windows XP Media Center Edition with Netbook running

  - by Col

  just got a new HP netbook with no optical drive and guide said I should be able to share the optical drive of another windows computer. The netbook is running Windows 7 and the laptop, also HP, with the internal optical drive is running Windows XP Media Center Edition. I have wireless network that both the laptop and netbook access without a problem. The instructions did not seem to work in my case. When I right clicked on Properties of the optical drive and went to the Sharing tab, there was no selction for Advanced Sharing as the instructions said. XP made me go to Network wizard and set up a network, (which I already had). After doing that I could not access the drive from Windows 7. Has anyone benn able to do this?

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• SQL SERVER – Copy Column Headers from Resultset – SQL in Sixty Seconds #026 – Video

  - by pinaldave

  SQL Server Management Studio returns results in Grid View, Text View and to the file. When we copy results from Grid View to Excel there is a common complaint that the column  header displayed in resultset is not copied to the Excel. I often spend time in performance tuning databases and I run many DMV’s in SSMS to get a quick view of the server. In my case it is almost certain that I need all the time column headers when I copy my data to excel or any other place. SQL Server Management Studio have two different ways to do this. Method 1: Ad-hoc When result is rendered you can right click on the resultset and click on Copy Header. This will copy the headers along with the resultset. Additionally, you can use the shortcut key CTRL+SHIFT+C for coping column headers along with the resultset. Method 2: Option Setting at SSMS level This is SSMS level settings and I kept this option always selected as I often need the column headers when I select the resultset. Go Tools >> Options >> Query Results >> SQL Server >> Results to Grid >> Check the Box “Include column header when copying or saving the results.” Both of the methods are discussed in following SQL in Sixty Seconds Video. Here is the code used in the video. Related Tips in SQL in Sixty Seconds: Copy Column Headers in Query Analyzers in Result Set Getting Columns Headers without Result Data – SET FMTONLY ON If we like your idea we promise to share with you educational material. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Database, Pinal Dave, PostADay, SQL, SQL Authority, SQL in Sixty Seconds, SQL Query, SQL Scripts, SQL Server, SQL Server Management Studio, SQL Tips and Tricks, T SQL, Technology, Video

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• Copying files locally on a network folder

  - by Altay_H

  I noticed that copying a large file from one location on a network drive to another location on the same network drive takes much longer than copying it locally. Instead of copying the file locally, the network computer sends the file to my remote computer, which sends it back to the same network computer. This means the files are being transferred over the network completely unnecessarily. Is there a way to fix this issue? It's becoming a real hassle to manage the video files on my network drive. Note: This is the case with both Windows and Linux (using Samba) network folders.

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• LVM2 vs MDADM performance

  - by archer

  I've used MDADM + LVM2 on many boxes for quite a while. MDADM was serving for both RAID0 and RAID1 arrays, while LVM2 where used for logical volumes on top of MDADM. Recently I've found that LVM2 could be used w/o MDADM (thus minus one layer, as the result - less overhead) for both mirroring and stripping. However, some guys claims that READ PERFORMANCE on LVM2 for mirrored array is not that fast as for LVM2 (linear) on top of MDADM (RAID1) as LVM2 does not read from 2+ devices at a time, but use 2nd and higher devices in case of 1st device failure. MDADM reads from 2 devices at a time (even in mirrored mode). Who could confirm that?

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• In MySQL 5.1 InnoDB, does the maximum length of a VARCHAR affect secondary index size?

  - by e_tothe_ipi

  Assuming the data is the same either way, does the maximum length of the VARCHAR affect the space usage of a secondary index? Does InnoDB use fixed length records for indexes? Assume that we're talking about MySQL 5.1, with the InnoDB COMPRESSED table format and that the field in question is defined as a VARCHAR with some length less than or equal to 255 (so that it uses only one byte for the offset). Here is the use case: I have a server with a very large table (several gigabytes). One of the fields is currently VARCHAR(7). We need it a little longer and we are thinking of making it VARCHAR(255), but we are worried that it bloat the index.

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• Scene Graph for Deferred Rendering Engine

  - by Roy T.

  As a learning exercise I've written a deferred rendering engine. Now I'd like to add a scene graph to this engine but I'm a bit puzzled how to do this. On a normal (forward rendering engine) I would just add all items (All implementing IDrawable and IUpdateAble) to my scene graph, than travel the scene-graph breadth first and call Draw() everywhere. However in a deferred rendering engine I have to separate draw calls. First I have to draw the geometry, then the shadow casters and then the lights (all to different render targets), before I combine them all. So in this case I can't just travel over the scene graph and just call draw. The way I see it I either have to travel over the entire scene graph 3 times, checking what kind of object it is that has to be drawn, or I have to create 3 separate scene graphs that are somehow connected to each other. Both of these seem poor solutions, I'd like to handle scene objects more transparent. One other solution I've thought of was traveling trough the scene graph as normal and adding items to 3 separate lists, separating geometry, shadow casters and lights, and then iterating these lists to draw the correct stuff, is this better, and is it wise to repopulate 3 lists every frame?

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• Cheap Bulk Domain Registration

  - by Panoy

  I have 6-7 domain names that I have thought of and I'm planning to buy it in bulk so that I can save. Or am I wrong on this? In my case, since its my first time to this hosting/domain registration, I only knew of GoDaddy with regards to domain registration. Questions: Will I lose out if I chose a cheap domain registrar compared to one that's popular? For a newbie like me, what companies can you recommend for me to register domain names in bulk for cheap or affordable price? I notice that some prices are higher because they offer support and customer service? Aren't those servers not reliable at all? I've heard of some domain registrars that they're increasing their prices every renewal? Is that just natural in a business sense for these domain registrars? Before posting this, I've been reading about NameCheap.com, and I'm considering registering for them unless you have other good choices to give me. I'll appreciate every suggestion or advice you can give.

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• UPK Professional Customer Success Story: Medtronic

  - by [email protected]

  In case you missed the live event, be sure to listen to last week's UPK Customer iSeminar featuring Medtronic. This was the first iSeminar in our quarterly series to showcase UPK Professional (UPK and Knowledge Pathways). Donna Miller and Staci Gilbert gave viewers an inside look at samples of Medtronic's content as they shared their experiences, methodology and best practices for use of the solution. Here are some highlights of the call: • Medtronic initially purchased UPK Professional to support a multi-year, global SAP rollout for 9,000 end users located in 24 countries. • As time went on, they expanded their use of UPK Professional to include several of their other enterprise applications: PeopleSoft, Siebel CRM, Hyperion Financial Management, a number of SAP bolt-ons, Documentum, TrackWise, and many others. • In combination with their Saba LMS, UPK Professional has allowed Medtronic to create, deploy, track and certify consistent end user training for critical transactions and processes across their organization worldwide - essential for a company in a heavily regulated industry. • For key pieces of content or certain end user populations, some Medtronic business units localize/translate the global UPK content. Staci demonstrated examples of their SAP content which has been translated into Japanese. • In the live SAP environment, end users rely on UPK's context sensitive in-application performance support. Medtronic has found this to be very helpful post go-live, giving just-in-time support so end users are confident in a new system or when performing tasks they don't often touch (at quarter or year end). UPK also serves as Medtronic's internal Google. • Medtronic has realized savings on many fronts: reduction in support calls due to in-application performance support, elimination of their training clients, and speedier training (1.5 days rather than 5-7 days) of temporary workers by moving from ILT to a blended solution that includes UPK simulations for eLearning. Thanks again to Donna and Staci for an exceptional presentation. They offered so many great examples for anyone who's looking for ways to get more out of UPK or interested in learning about UPK Professional: Knowledge Pathways. - Karen Rihs, Oracle UPK Outbound Product Management

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• Windows activation on a Virtual Machine (Physical->VM)

  - by Daisetsu

  I backed up a number of laptops to virtual machines before they are to be re-purposed, in case I need the data at some later time. While the Physical to VM processes worked fine I am encountering issues on some of the VMs. When I boot them I get an error message saying I MUST activate windows in order to login. This is expected because the hardware changed (from physical hardware to virtualized hardware). I click the OK button and expect to be prompted with ways to activate, windows sits there for quite a while then tells me that "Windows has already been activated". I click OK at that message and get take back to the beginning where I am asked to activate Windows. I have done some fairly intensive googling but haven't been able to find a real solution. EDIT: The laptops with the issues are 2 Sony Vaios, I believe that they have the OEM version of the OS originally installed by the factory.

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• Redmine on Redhat/CentOS 5 Without using virtual hosts

  - by flyclassic

  I've have followed all the steps to install Redmine on CentOS 5, except for the Apache part: http://www.redmine.org/projects/redmine/wiki/HowTo_install_Redmine_on_CentOS_5 I do not want to configure a virtualhost as we are not using virtual hosts. Can I configure Redmine to run with http://hostname/redmine? Apparently it doesn't work for my case. Redmine was extracted in to the webserver document root /var/www/html/ called /var/www/html/redmine What I did was added a redmine.conf to /etc/httpd/conf.d/ with the following configuration and restarted the server: <Location "/redmine"> Options Indexes ExecCGI FollowSymLinks -MultiViews Order allow,deny Allow from all AllowOverride all PassengerEnabled On RailsBaseURI /var/www/html/redmine RailsEnv production </Location> now i got this error Further information about the error may have been written to the application's log file. Please check it in order to analyse the problem. Error message: No such file or directory - config/environment.rb Exception class: Errno::ENOENT Application root: /var/www/html Where have I gone wrong?

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• SLES 11 - ocfs2 - Locking does not appear to work

  - by Autobyte

  Hi I have two SLES 11 servers that are SAN attached to a Clarion CX-340. The SAN partition has been formatted with ocfs2 and I have both machines setup in a cluster and the cluster is running (all appears to be normal). I have a small java application as a locking test and when I run the application on both machines at the same time, I should get the lock on one server and the other should refuse the lock since the first already holds a lock on that file but in this case both servers get a lock on the same file. Basically my cluster.conf looks like this: node: ip_port = 7777 ip_address = 192.168.10.121 number = 1 name = osrsles10node1 cluster = osrsles10 node: ip_port = 7777 ip_address = 192.168.10.122 number = 2 name = osrsles10node2 cluster = osrsles10 cluster: node_count = 2 name = osrsles10 Please ask for any other info - I really need these locks to be exclusive to each server. Thanks.

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• LibGDX Boid Seek Behaviour

  - by childonline

  I'm trying to make a swarm of boids which seek out the mouse position and move towards it, but I'm having a bit of a problem. The boids just seem to want to go to upper-right corner of the game window. The mouse position seems influence the behavior a bit, but not enough to make the boid turn towards it. I suspect there is a problem with the way LibGDX handles its coordinate system, but I'm not sure how to fix it I've uploaded the eclipse project here! Also here are the relevant bits of my code, in case you see something obviously wrong: public Agent(){ _texture = GdxGame.TEX_AGENT; TextureRegion region = new TextureRegion(_texture, 0, 0, 32, 32); TextureRegion region2 = new TextureRegion(GdxGame.TEX_TARGET, 0, 0, 32, 32); _sprite = new Sprite(region); _sprite.setSize(.05f, .05f); _sprite_target = new Sprite(region2); _sprite_target.setSize(.1f, .1f); _max_velocity = 0.05f; _max_speed = 0.005f; _velocity = new Vector2(0, 0); _desired_velocity = new Vector2(0, 0); _steering = new Vector2(0, 0); _position = new Vector2(-_sprite.getWidth()/2, -_sprite.getHeight()/2); _mass = 10f; } public void Update(float deltaTime){ _target = new Vector2(Gdx.input.getX(), Gdx.input.getY()); _desired_velocity = ((_target.sub(_position)).nor()).scl(_max_velocity,_max_velocity); _steering = ((_desired_velocity.sub(_velocity)).limit(_max_speed)).div(_mass); _velocity = (_velocity.add(_steering)).limit(_max_speed); _position = _position.add(_velocity); _sprite.setPosition(_position.x, _position.y); _sprite_target.setPosition(Gdx.input.getX(), Gdx.input.getY()); } I've used this tutorial here. Thanks!

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• What's the benefit of object-oriented programming over procedural programming?

  - by niko

  I'm trying to understand the difference between procedural languages like C and object-oriented languages like C++. I've never used C++, but I've been discussing with my friends on how to differentiate the two. I've been told C++ has object-oriented concepts as well as public and private modes for definition of variables: things C does not have. I've never had to use these for while developing programs in Visual Basic.NET: what are the benefits of these? I've also been told that if a variable is public, it can be accessed anywhere, but it's not clear how that's different from a global variable in a language like C. It's also not clear how a private variable differs from a local variable. Another thing I've heard is that, for security reasons, if a function needs to be accessed it should be inherited first. The use-case is that an administrator should only have as much rights as they need and not everything, but it seems a conditional would work as well: if ( login == "admin") { // invoke the function } Why is this not ideal? Given that there seems to be a procedural way to do everything object-oriented, why should I care about object-oriented programming?

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• Oracle TechCast Live: "MySQL 5.5 Does Windows"

  - by bertrand.matthelie(at)oracle.com

  @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }div.Section1 { page: Section1; } Interested in MySQL on Windows? Join our next Oracle TechCast Live on Tuesday January 11th at 10.00 am PT! MySQL Product Manager Mike Frank will then tell you all about the major MySQL 5.5 performance gains on Windows.   In case you're not familiar with the Oracle TechCast Live events, they're akin to online "fireside chats" with experts about new tools, technologies and trends in application development. They also include live Q&A sessions, and you can ask questions via Twitter & Facebook. You can check out a few archived sessions here.   Get ready to ask your questions to Mike!   We hope many of you will join.

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• Uninstall last n of ports/packages

  - by Radio

  While compiling some port, I realized that it depends on 1000+ of other ports and will install forever until I die or my disk is full (my hdd is really small). I interrupted make install clean. How do I uninstall and clean those dependencies which have already been built and installed? (there are at least 100+ of them) pkg_cutleaves wont work in this case, since the main port wasn't registered yet. Please help. FreeBSD 9.0-RELEASE amd64 EDIT: Another way to ask this question: How can I see all dependencies for a non-registered port, and all subdependencies for those dependencies, independent with previously installed ports or their [sub]dependencies?

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• Grub2 fails to chainload Windows 7 with error "invalid signature"

  - by atomicpirate

  I've built a new UEFI 64-bit system with both Windows 7 and Ubuntu 11.10 installed (on separate hard drives). I'd like to be able to boot Windows 7 from the grub menu, but I have so far been unsuccessful in getting grub to chainload it. After getting the grub menu, I choose the option for the command line and I can see that bootmgfw.efi is at (hd1,gpt1)/efi/Microsoft/Boot/bootmgfw.efi. However, when I attempt to chainload I get an error: grub> chainloader (hd1,gpt1)/efi/Microsoft/Boot/bootmgfw.efi error: invalid signature I am not sure whether I chose the UEFI boot option when I installed Linux from the LiveCD, and so I am wondering if the grub I have is perhaps unable to chainload in this manner? In any case I am not sure how to get the chainload to work.

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• Set-and-forget Windows backup software with NAS-support?

  - by Evert

  I am looking for set-and-forget backup software for Windows (Vista & 7, and if possible XP/2003). The idea is that it runs in the background on the clients, and does its thing towards a network-share. In case the HDD of one of these clients spontaneously combusts, all I want to have to do is: replace the drive, insert a USB-stick, boot from it, and restore the machine. It should support drives which use [ICH]-RAID. What are my options here? It looks like WHS meets all the requirements, but I am curious about my other options here.

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• RAID FS detection at boot time

  - by alex

  An excerpt from dmesg: md: Autodetecting RAID arrays. md: Scanned 2 and added 2 devices. md: autorun ... md: considering sdb1 ... md: adding sdb1 ... md: adding sda1 ... md: created md1 md: bind<sda1> md: bind<sdb1> md: running: <sdb1><sda1> raid1: raid set md1 active with 2 out of 2 mirrors md1: detected capacity change from 0 to 1500299198464 md: ... autorun DONE. md1: unknown partition table EXT3-fs (md1): error: couldn't mount because of unsupported optional features (240) EXT2-fs (md1): error: couldn't mount because of unsupported optional features (240) EXT4-fs (md1): mounted filesystem with ordered data mode Is it OK that kernel tries to mount an ext4 raid as ext3, ext2 first? Is there a way to tell it to skip those two steps? Just in case: /dev/md1 / ext4 noatime 0 1 TIA.

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• Installing Multiple OWB Patches

  - by [email protected]

  When an OUBI bug requires a fix to the Oracle Warehouse Builder (OWB) code, the fix is delivered as an MDL export file that will need to be imported and deployed in OWB. If more than one bug is being patched, then a recent question came in that asked if it would be possible to import one after the next, and then do the deploy steps once? The answer is Yes, all of the imports can be done before any of objects are deployed. Once all of the objects have been deployed, then the TCL scripts that need to be rerun can be run, and then the objects that were changed can be deployed. The order that the MDL files are loaded does not matter unless the same object is in two or more MDL files. In that case, the latest MDL file should be loaded last. For example, if two MDL files both contain changes to the SPLMAP_F_RECENT_CREW mapping, and one was created on January 2, 2009 and the second one was created on March 14, 2009, then the January 2 file should be loaded first and the March 14 file should be loaded second. Note that if the MDL files are always loaded in the order that they were created by Release Services, then this will work correctly.

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• How to setup separate MySQL and PHP VPS servers

  - by Fazal

  Someone recommended I should have my MySQL server separate from my Apache/PHP server in case of hacking and such. By visiting linode, slicehost and various articles here on serverfault I've managed to cobble together a decent set of instructions on how to do the Apache/PHP bit. I'm using Rackspace VPS and they provide an internal IP for each server. If I setup a MySQL VPS, should I assume that I would just add the internal IP for the database host? And I guess that I would only need to open up my default ssh port and mysql ports and install phpmyadmin on there? Ideally I would have webserver.mydomain.com and dbserver.mydomain.com (two 256mb VPS's) with servermin on webserver.mydomain.com and phpmyadmin on dbserver.mydomain.com. If anyone has any guides or advice on how to setup this type of solution I'd be more then grateful!

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• Where do SATA drives get their power when using a PCI SATA controller on oler PCs?

  - by Sukima

  I've been looking into PCI SATA controller cards online for an older PC and noticed that the ports only have the SATA cable connector and the Power supply does not have the SATA power connectors. I also had a few external eSATA drives which don't power up unless I also plugin the USB cable. Therefore I realize that SATA and eSATA do not carry power and need power else where. When converting older PCs to use a PCI SATA controller how do you provide power to the SATA drives? Anticipating the answer to be some kind of converter cable (which I was unable to search for) then can older power supplies handle added drives? (Assuming a 4 port SATA controller means 4 more drives the power supply has to endure). Or do you have to get a second poer supply and kinda jerry-rig it into an old case?

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• Configuring SMB shares in OS X

  - by Craig Walker

  I'm at my wit's end trying to control SMB file sharing on my Mac. (OS X 10.5 Leopard). I want to do something fairly simple: share a particular (non-home, non-Public) folder over my my SMB/Windows network with two users (accounts are local to my Mac), and share no other folders with anyone. The instructions on the internet are fairly straightforward: add the folders to be shared to the File Sharing panel of the Sharing System Preferences pane: ..and ensure that I'm sharing through SMB: However, when I actually try to connect via a SMB client (Windows XP in this case), the share does not appear. I see my home directory, "Macintosh HD", and my printers, but not the folder I just shared. I ensured that the underlying directory had the proper permissions (since this seems to affect share visibility) and that the "Shared Folder" checkbox was checked: ...but this didn't have any effect. I checked /etc/smb.conf but there was nothing obviously out of place there. I've also restarted smbd and rebooted. What else should I be looking for?

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• How to open a VirtualBox (.VDI) Virtual Machine

  - by [email protected]

   How to open a .VDI Virtual MachineSometimes someone share with us one Virtual machine with extension .VDI, after that we can wonder how and what with?Well the answer is... It is a VirtualBox - Virtual Machine. If you have not downloaded it you can do this easily, just follow this post.http://listeningoracle.blogspot.com/2010/04/que-es-virtualbox.htmlorhttp://oracleoforacle.wordpress.com/2010/04/14/ques-es-virtualbox/Ok, Now with VirtualBox Installed open it and proceed with the following:1. Open the Virtual File Manager. 2. Click on Actions ? Add and select the .VDI fileClick "Ok"3.  A new Virtual machine will be displayed, (in this Case, an OEL5 32GB Virtual Machine is available.)4. This step is important. Once you have open the settings, under General option click the advanced settings. Here you must change the default directory to save your Snapshots; my recommendation set it to the same directory where the .Vdi file is. Otherwise you can have the same Virtual Machine and its snapshots in different paths.5. Now Click on System, and proceed to assign the correct memory and define the processors for the Virtual machine. Note: Enable  "Enable IO APIC" if you are planning to assign more than one CPU to the Virtual Machine.6. Associated the storage disk to the Virtual machineThe disk must be selected as IDE Primary Master. 7. Well you can verify the other options, but with these changes you will be able to start the VM. Note: Sometime the VM owner may share some instructions, if so follow his instructions.8. Click Ok and Push Start Button, and enjoy your Virtual Machine

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