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• Strange error when Bootcamp attempts to create partition for Windows

  - by mozillalives

  I get a strange error when I tell Bootcamp to create a partition for Windows. I get to the Create a Partition stage. I select 20GB for Windows leaving 91GB (39GB free) for OS X. I then click Partition and it gives me the following error The disk cannot be partitioned because some files cannot be moved. Back up the disk and use Disk Utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again. My disk is formatted in Mac OS Extended (Journaled), I have closed all applications (besides Bootcamp Assistant) and I have even restarted and tried again to see if that might help. Nothing. I can't get it to partition. I also tried to create the partition using Disk Utility and I got the following error Partition failed Partition failed with the error: Could not modify partition map because filesystem verification failed Any ideas? BTW - I am running OS X 10.6.2

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• How do you persuade users to abandon their personal folders?

  - by thing2k

  Towards the end of last year we started using Mimecast services, in particular their cloud base e-mail archiving. Since then we’ve been rolling out the Mimecast Services for Outlook (MSO) Add-in. We’ve informed the users that we will be give them training in the next few Months, and we do not require them to use it, but my boss stated that we are getting rid of Personal Folders (pst files), by putting them into Mimecast. Unsurprisingly this did cause something of a backlash. Though really who likes change. I know the IT reasons for getting rid of Personal Folders (inefficient, unreliable, single access, etc), but from an average user’s perspective, unless they have had one fail on them, they see them as simple and only way to archive e-mail when their 200Mb mailbox is full. So what can I say to the users, to get them to understand why Personal Folders are not the best solution?

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• How to negotiate with software vendors who do not follow HL7 standards

  - by Peter Turner

  Take, for instance the "", I'd hope that anyone who has spent any time in dealing with HL7 messages knows that the "" signifies that something should be deleted. "" is not an empty string, it's not a filler etc... But occasionally, one may meet a vendor who persists in sending "" instead of just sending nothing at all. Since, I work for a small business and have an extremely flexible HL7 interface, I can ignore ""'s in received messages. But these things are adding up. Some vendors like to send custom formatted fields with psuedo-components that they leave others to interpret themselves. Some vendors send all their information in note segments and assume you're going to only show users the information they send in a monospace font. Some vendors even have the audacity to send Carriage Return Line Feeds at the end of each line of a file interface. Some vendors absolutely refuse to send decimal numbers and in-so-doing refuse to send any numbers. So, with all this crippling humanity against the simple plastic software man, how does one bend without breaking*? Or better yet, how does one fight back and still make money? *my answer is usually to create an interface for the interface and keep the HL7 processing pure, but I don't think this is the best solution

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• SNMP based network discovery (switches), device (ports on switches) power management

  - by SaM

  In a enterprise network, what would be the right way to generate a list of switches (SNMP managed) Is it reasonable to ask the organization to supply a list such as this: Switch name IP Address of switch Location SNMP community strings Or are there standard ways to run discovery scans - UDP broadcasts? After having generated a repository such as the above; given a single switch, how to query it for the list of all devices attached to it? Finally, how to selectively power down/power up ports? (remotely - using SNMP) Platform is going to be .NET based (C#) and the library being used is SharpSNMP

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• SQL SERVER – 2011 – SEQUENCE is not IDENTITY

  - by pinaldave

  Yesterday I posted blog post on the subject SQL SERVER – 2011 – Introduction to SEQUENCE – Simple Example of SEQUENCE and I received comment where user was not clear about difference between SEQUENCE and IDENTITY. The reality is that SEQUENCE not like IDENTITY. There is very clear difference between them. Identity is about single column. Sequence is always incrementing and it is not dependent on any table. Here is the quick example of the same. USE AdventureWorks2008R2 GO CREATE SEQUENCE [Seq] AS [int] START WITH 1 INCREMENT BY 1 MAXVALUE 20000 GO -- Run five times SELECT NEXT VALUE FOR Seq AS SeqNumber; SELECT NEXT VALUE FOR Seq AS SeqNumber; SELECT NEXT VALUE FOR Seq AS SeqNumber; SELECT NEXT VALUE FOR Seq AS SeqNumber; SELECT NEXT VALUE FOR Seq AS SeqNumber; GO -- Clean Up DROP SEQUENCE [Seq] GO Here is the resultset. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Easy BCD Help: Dual boot Win7 and Ubuntu 11.10 -- "Add new Entry" for Ubuntu

  - by Bradley Peterson

  I first had Ubuntu 11.10 installed on a single partition on my 750GB hard drive. I then partitioned the hard drive to 500GB (for Ubuntu) in ext4 format (what it already was from the clean install of Ubuntu)....and 250GB for Win7 in NFTS format. Then I installed Win7 onto that 250GB partition. Installation went smoothly and I was successfully booted into Win7 and setting everything up. After I was done doing all the stupid updates from Microsof, I thought I was done and I wanted to go back to Ubuntu. This is where the problem starts Of course I reboot and it goes directly to Win7. I research and find that Win7 has overwritten the Ubuntu bootloader, etc etc.. I don't fully understand it. I download EasyBCD 2.1.2 In EasyBCD, I select "Add New Entry" and select "Linux/BSD" and change the type to "GRUB 2" and name it "Ubuntu" Next, I go to "BCD Deployment" and select "Install the Windows Vista/7 bootloader to the MBR" and click "Write MBR" I reboot, select "Ubuntu" and the purple screen comes up, but NOTHING HAPPENS. If I hit Ctrl+Alt+Del, it goes to the Login menu where it acts normal for about 10-15 seconds, then freezes. It does this repeatedly every time. MY QUESTION: What's wrong here? Why can't I load Ubuntu now? Am I going to have to reinstall Ubuntu with Windows, then set up the bootloader with EasyBCD instead of Ubuntu, THEN Win7? Any and all help is appreciated! -Brad

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• Firefox extension to dinamically change superbar icon, similar to windows live messenger.

  - by D Connors

  With seven's new superbar, windows live messenger is now able to display your status on the bar's icon (and not on the system tray). So that got me thinking, maybe a firefox extension could do something similar. Therefore, here's my question to those who understand the workings and spinning wheels behind firefox extensions: could a firefox extension change the superbar icon to display some useful info? Does the current functionality support it? EDIT: I think my question is not really clear. I just want to know if it's theoritically possible for a firefox addon to change the superbar icon dinamically. For instance, windows live messenger changes the icon acording to your status, and gmail notifier plus changes the icon according to your unread messages count. I'm just wondering if firefox as it is right now supports an extension with that functionality. I know that no current extensions do it, and I'm not looking for a gmail notifier (that was just an example). thanks

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• Sharepoint 2007 Event ID 6482

  - by Dave M

  Our two server SharePoint 2007 SP2 farm has an issue. Event ID 6482 appears in the Application log of the Web front end many times a day. Often many time a minute. The full error is from Office SharePoint Server Event Type: Error Event Source: Office SharePoint Server Event Category: Office Server Shared Services Event ID: 6482 Date: 11/12/2009 Time: 3:05:22 PM User: N/A Computer: XXXXXX Description: Application Server Administration job failed for service instance Microsoft.Office.Server.Search.Administration.SearchServiceInstance (36a9b7ef-59aa-4f94-8887-8bf7b56f2f91). Reason: Error during encryption or decryption. System error code 0. Techinal Support Details: System.ArgumentException: Error during encryption or decryption. System error code 0. at Microsoft.Office.Server.Search.Administration.SearchServiceInstance.SynchronizeDefaultContentSource(IDictionary applications) at Microsoft.Office.Server.Search.Administration.SearchServiceInstance.Synchronize() at Microsoft.Office.Server.Administration.ApplicationServerJob.ProvisionLocalSharedServiceInstances(Boolean isAdministrationServiceJob) For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. The SharePoint site appears to be functioning normally and Search returns expected results. Any suggestions would be appreciated

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• GPLv2 - Multiple AI chess engines to bypass GPL

  - by Dogbert

  I have gone through a number of GPL-related questions, the most recent being this one: http://stackoverflow.com/questions/3248823/legal-question-about-the-gpl-license-net-dlls/3249001#3249001 I'm trying to see how this would work, so bear with me. I have a simple GUI interface for a game of Chess. It essentially can send/receive commands to/from an external chess engine (ie: Tong, Fruit, etc). The application/GUI is similar in nature to XBoard ( http://www.gnu.org/software/xboard/ ), but was independently designed. After going through a number of threads on this topic, it seems that the FSF considers dynamically linking against a GPLv2 library as a derivative work, and that by doing so, the GPLv2 extends to my proprietary code, and I must release the source to my entire project. Other legal precedents indicate the opposite, and that dynamic linking doesn't cause the "viral" effect of the GPL to propagate to my proprietary code. Since there is no official consensus that can give a "hard-and-fast" answer to the dynamic linking question, would this be an acceptable alternative: I build my chess GUI so that it sends/receives the chess engine AI logic as text commands from an external interface library that I write The interface library I wrote itself is then released under the GPL The interface library is only used to communicate via a generic text pipe to external command-line chess engines The chess engine itself would be built as a command-line utility rather than as a library of any sort, and just sends strings in the Universal Chess Interface of Chess Engine Communication Protocol ( http://en.wikipedia.org/wiki/Chess_Engine_Communication_Protocol ) format. The one "gotcha" is that the interface library should not be specific to one single GPL'ed chess engine, otherwise the entire GUI would be "entirely dependent" on it. So, I just make my interface library so that it is able to connect to any command-line chess engine that uses a specific format, rather than just one unique engine. I could then include pre-built command-line-app versions of any of the chess engines I'm using. Would that sort of approach allow me to do the following: NOT release the source for my UI Release the source of the interface library I built (if necessary) Use one or more chess engines and bundle them as external command-line utilities that ship with a binary version of my UI Thank you.

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• How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk

  - by The Geek

  We’ve covered loads of different anti-virus, Linux, and other boot disks that help you repair or recover your system, but why limit yourself to just one? Here’s how to combine your favorite repair disks together to create the ultimate repair toolkit for broken Windows systems—all on a single flash drive. The ones we’ve covered already? Here’s a quick list of all the ways you can recover your system with a rescue disk: How to Use the Avira Rescue CD to Clean Your Infected PC How to Use the BitDefender Rescue CD to Clean Your Infected PC How to Use the Kaspersky Rescue Disk to Clean Your Infected PC Change or Reset Windows Password from a Ubuntu Live CD The 10 Cleverest Ways to Use Linux to Fix Your Windows PC Change Your Forgotten Windows Password with the Linux System Rescue CD Use Ubuntu Live CD to Backup Files from Your Dead Windows Computer If you need to clean up an infected system, we’d absolutely recommend the BitDefender CD, since it’s auto-updating. Best bet? Create your ultimate boot disk with as many of the different utilities as your flash drive can hold Latest Features How-To Geek ETC How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC Luigi Installs Any OS on Google’s Cr-48 Notebook DIY iPad Stylus Offers Pen-Based Interaction on the Cheap Serene Blue Ubuntu Wallpaper for Your Desktop Enjoy Old School Style Video Game Fun with Chicken Invaders Hide the Twitter “Litter” in Twitter’s Sidebar Area (Chrome and Iron) Public Domain Day: Reflections on Copyright and the Importance of Public Domain

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• GeForce 9600GT support for dual monitor setup

  - by Theo

  I have a NVIDIA GeForce 9600 GT (point of view, link) on an Asus M2V-MX motherboard. The card has one DVI, HDMI and S-Video output. The graphics card does not seem to support dual monitors: the driver control panel for the graphics card does not detect a second monitor that is attached via S-Video (which leads me to believe that it doesn't support dual monitors with DVI and the other connections). Would it be possible to use a VGA/DVI splitter to attach two monitors to the single DVI output on the graphics card? Would this allow for a dual monitor setup, or only mirroring? How do I know if the graphic card supports this? With this particular motherboard, would it be possible to use the onboard video for another monitor?

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• Don't Use "Static" in C#?

  - by Joshiatto

  I submitted an application I wrote to some other architects for code review. One of them almost immediately wrote me back and said "Don't use "static". You can't write automated tests with static classes and methods. "Static" is to be avoided." I checked and fully 1/4 of my classes are marked "static". I use static when I am not going to create an instance of a class because the class is a single global class used throughout the code. He went on to mention something involving mocking, IOC/DI techniques that can't be used with static code. He says it is unfortunate when 3rd party libraries are static because of their un-testability. Is this other architect correct? update: here is an example: APIManager - this class keeps dictionaries of 3rd party APIs I am calling along with the next allowed time. It enforces API usage limits that a lot of 3rd parties have in their terms of service. I use it anywhere I am calling a 3rd party service by calling Thread.Sleep(APIManager.GetWait("ProviderXYZ")); before making the call. Everything in here is thread safe and it works great with the TPL in C#.

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• IIS7 URL Rewrite for URL with &rsquo;

  - by blizz

  I'm trying to redirect the following URL in IIS7 using the URL Rewrite module: Category/Cat-3/Objectives-of-Pre-Maintenance/WHAT&rsquo;S-THE-STORY-ON-LOW-CARB-DIETS-AND-EXERCISE-.aspx but for the life of me I can not get it. I tried replacing the &rsquo; with an actual single quote, and that worked fine! But for the purpose of this redirect, I need the HTML code for the quote, and not the quote itself. Here is the rule from web config: <rule name="Redirect" patternSyntax="ECMAScript" stopProcessing="true"> <match url="^Category/Cat-3/Objectives-of-Pre-Maintenance/WHAT&amp;rsquo;S-THE-STORY-ON-LOW-CARB-DIETS-AND-EXERCISE-\.aspx" /> <conditions> <add input="{HTTP_HOST}" pattern="www.example.com" /> </conditions> <action type="Redirect" url="http://www.example.com/redirecturl/" appendQueryString="false" /> </rule> Any ideas would be very helpful! Thanks

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• To the world, with love

  - by kaleidoscope

  kaleidoscope 1817, lit. "observer of beautiful forms," coined by its inventor, Sir David Brewster (1781-1868), from Gk. kalos "beautiful" + eidos "shape" (see -oid) + -scope, on model of telescope, etc. Figurative meaning "constantly changing pattern" is first attested 1819 in Lord Byron, whose publisher had sent him one. Let’s start by setting some context here. “We” are not a single blogger but a bunch of like minded people who will be contributing to this blog. We belong to a team led by some folks possessed by innovation, and this has rubbed on us in a good way. How it started It all started with initiative from Girish, A. A big thank you, goes to him. To get it straight from the horse’ mouth: What is it? - Everybody (as per the published schedule) post a small write-up (not more than say 5/6 lines) regarding any Azure related concept. - We shall consolidate all these mails (which would be 5/week) and quickly discuss/brain storm about it, end of the week i.e. on Fridays. What’s the benefit? - This should make our basic Azure concepts rock-solid. - As part of this exercise, we will have a very good collection of Azure FAQs. As the team grew stronger, so did the contributions and after almost 3 months of regular contributions and weekly discussions we thought of sharing the content with the world at large. Afterall we are IT folks and the big I in IT is there for a reason. :) The road ahead We will post the entire collection as time permits. Tagged by contributor. Going forward each contributor will post individually adding his/her specific tag. Get blogging!!

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• Questions, Knowledge Checks and Assessments

  - by ted.henson

  Questions should be used to reinforce concepts throughout the title. You have the option to include questions in the course, in assessments, in Knowledge Checks, or in any combination. Questions are required for creating knowledge checks and assessments. It is important to remember that questions that are not in assessments are not tracked. Be sure to structure your outline so that questions are added to the appropriate assignable unit. I usually recommend that questions appear directly below their relative section. This serves two purposes. First, it helps ensure that the related content and question stay relative to one another. Secondly, it ensures that when the "link to subject" option is used it will relate back to the relative content. Knowledge checks are created using the questions that have been added to the related assignable unit. Use Knowledge Checks to give users an additional opportunity to review what they have learned. Knowledge Check allows users to check their own knowledge without being tracked or scored. Many users like having this self check option, especially if they know they are going to be tested later. Each assignable unit can have its own Knowledge Check. Assessments provide a way to measure knowledge or understanding of the course material. The results of each assessment are scored and tracked. Assessments are created using the questions that have been added to the relative assignable unit(s). Each assignable unit, including the Title AU, can have multiple assessments. Consider how your knowledge paths will be structured when planning your assessments. For instance, you can create a multiple-activity knowledge path, with multiple assessments from the same title or assignable unit. Also remember, in Manager an assessment can be either a pre or post assessment. Pre-assessments allow the student to discover what is already known in a specific topic or subject and important if the personal course feature is being used. Post-assessments allow you test the student knowledge or understanding after completing the material.

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• Don’t miss the Oracle Webcast: Enabling Effective Decision Making with “One Source of the Truth” at BB&T

  - by Rob Reynolds

  Webcast Date:  September 17th, 2012  -  9 a.m. PT / 12 p.m. ET  BB&T Corporation (NYSE: BBT) is one of the largest financial services holding companies in the United States. One of their IT goals is to provide “one source of truth” to enable more effective decision making at the corporate and local level. By using Oracle’s Hyperion Enterprise Planning Suite and Oracle Essbase, BB&T streamlined their planning and financial reporting processes. Large volumes of data were consolidated into a single reporting solution giving stakeholders more timely and accurate information. By providing a central and automated collaboration tool, BB&T is able to prepare more accurate financial forecasts, rapidly consolidate large amounts of data, and make more informed decisions. Join us on September 17th for a live webcast to hear BB&T’s journey to achieve “One Source of Truth” and learn how Oracle’s Hyperion Planning Suite and Oracle’s Essbase allows you to: Adopt best practices like rolling forecasts and driver-based planning Reduce the time and effort dedicated to the annual budget process Reduce the time and effort dedicated to the annual budget process Remove forecasting uncertainty with predictive modeling capabilities Rapidly analyze shifting market conditions with a powerful calculation engine Prioritize resources effectively with complete visibility into all potential risks Link strategy and execution with integrated strategic, financial and operational planning Register here.

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• How to run Windows 7 Explorer shell with Administrator Privileges by default

  - by Barry Kelly

  The Windows 7 shell (Explorer) can be made to run with Administrator privileges by this manual process: Kill Explorer shell by holding down Shift+Ctrl, right-clicking the Shut down button in the Start Menu, and selecting Exit Explorer Start Task Manager with Ctrl+Shift+Esc Elevate Task Manager privileges by going to Processes tab and selecting Show processes from all users Then start up a new instance of the shell by File | Run in Task Manager, typing in explorer, and selecting the Create this task with administrative privileges. After following the above process, the Windows shell will be running with administrative privileges, and any programs it launches will also have administrative privileges. This makes performing tasks that require the privilege far easier, particularly for command-line applications, which usually fail silently or with an Access denied. message rather than giving an opportunity to use UAC to elevate the process's privileges. What I'm interested in, though, is creating an account which uses a privileged shell by default, rather than having to follow this laborious process every time. How can it be done?

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• preparing to migrate MOSS 2007 SP1 content into new server with MOSS 2007 SP2 with the same server n

  - by Albert Widjaja

  To All Experts here, I'd like to perform a MOSS server content migration from the existing single instance server (SQL Server 2008, Windows Server 2008, SharePoint 2007 SP1) all in one and by maintaining the server name only, here's what I had in my migration plan document outline: I have created the new Windows Server 2008 R2 + SQL Server 2008 SP1 and MOSS 2007 SP2 after that: Backup MOSS_ContentDB from SQL Server 2008 SSMS (does this enough to cover all top level sites and its content in the library and doc. repository ?) Backup all top level sites from CA site using the CA Sites backup and restore tools. turn off the old MOSSDEV01 (current server) rename the existing server (TempServ01) into MOSSDEV01 (so that the user bookmark and other link inside MOSS site still working) perform restore of the DB restore the site collection and its content from the backup is that the correct way to do it ? I haven't execute the server configuration wizard to create the same port number of the SSP, CA and the SQL Server DB yet. Any idea and suggestion would be greatly appreciated Thanks.

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• Investigation: Can different combinations of components effect Dataflow performance?

  - by jamiet

  Introduction The Dataflow task is one of the core components (if not the core component) of SQL Server Integration Services (SSIS) and often the most misunderstood. This is not surprising, its an incredibly complicated beast and we’re abstracted away from that complexity via some boxes that go yellow red or green and that have some lines drawn between them. Example dataflow In this blog post I intend to look under that facade and get into some of the nuts and bolts of the Dataflow Task by investigating how the decisions we make when building our packages can affect performance. I will do this by comparing the performance of three dataflows that all have the same input, all produce the same output, but which all operate slightly differently by way of having different transformation components. I also want to use this blog post to challenge a common held opinion that I see perpetuated over and over again on the SSIS forum. That is, that people assume adding components to a dataflow will be detrimental to overall performance. Its not surprising that people think this –it is intuitive to think that more components means more work- however this is not a view that I share. I have always been of the opinion that there are many factors affecting dataflow duration and the number of components is actually one of the less important ones; having said that I have never proven that assertion and that is one reason for this investigation. I have actually seen evidence that some people think dataflow duration is simply a function of number of rows and number of components. I’ll happily call that one out as a myth even without any investigation!  The Setup I have a 2GB datafile which is a list of 4731904 (~4.7million) customer records with various attributes against them and it contains 2 columns that I am going to use for categorisation: [YearlyIncome] [BirthDate] The data file is a SSIS raw format file which I chose to use because it is the quickest way of getting data into a dataflow and given that I am testing the transformations, not the source or destination adapters, I want to minimise external influences as much as possible. In the test I will split the customers according to month of birth (12 of those) and whether or not their yearly income is above or below 50000 (2 of those); in other words I will be splitting them into 24 discrete categories and in order to do it I shall be using different combinations of SSIS’ Conditional Split and Derived Column transformation components. The 24 datapaths that occur will each input to a rowcount component, again because this is the least resource intensive means of terminating a datapath. The test is being carried out on a Dell XPS Studio laptop with a quad core (8 logical Procs) Intel Core i7 at 1.73GHz and Samsung SSD hard drive. Its running SQL Server 2008 R2 on Windows 7. The Variables Here are the three combinations of components that I am going to test:     One Conditional Split - A single Conditional Split component CSPL Split by Month of Birth and income category that will use expressions on [YearlyIncome] & [BirthDate] to send each row to one of 24 outputs. This next screenshot displays the expression logic in use: Derived Column & Conditional Split - A Derived Column component DER Income Category that adds a new column [IncomeCategory] which will contain one of two possible text values {“LessThan50000”,”GreaterThan50000”} and uses [YearlyIncome] to determine which value each row should get. A Conditional Split component CSPL Split by Month of Birth and Income Category then uses that new column in conjunction with [BirthDate] to determine which of the same 24 outputs to send each row to. Put more simply, I am separating the Conditional Split of #1 into a Derived Column and a Conditional Split. The next screenshots display the expression logic in use: DER Income Category         CSPL Split by Month of Birth and Income Category       Three Conditional Splits - A Conditional Split component that produces two outputs based on [YearlyIncome], one for each Income Category. Each of those outputs will go to a further Conditional Split that splits the input into 12 outputs, one for each month of birth (identical logic in each). In this case then I am separating the single Conditional Split of #1 into three Conditional Split components. The next screenshots display the expression logic in use: CSPL Split by Income Category         CSPL Split by Month of Birth 1& 2       Each of these combinations will provide an input to one of the 24 rowcount components, just the same as before. For illustration here is a screenshot of the dataflow containing three Conditional Split components: As you can these dataflows have a fair bit of work to do and remember that they’re doing that work for 4.7million rows. I will execute each dataflow 10 times and use the average for comparison. I foresee three possible outcomes: The dataflow containing just one Conditional Split (i.e. #1) will be quicker There is no significant difference between any of them One of the two dataflows containing multiple transformation components will be quicker Regardless of which of those outcomes come to pass we will have learnt something and that makes this an interesting test to carry out. Note that I will be executing the dataflows using dtexec.exe rather than hitting F5 within BIDS. The Results and Analysis The table below shows all of the executions, 10 for each dataflow. It also shows the average for each along with a standard deviation. All durations are in seconds. I’m pasting a screenshot because I frankly can’t be bothered with the faffing about needed to make a presentable HTML table. It is plain to see from the average that the dataflow containing three conditional splits is significantly faster, the other two taking 43% and 52% longer respectively. This seems strange though, right? Why does the dataflow containing the most components outperform the other two by such a big margin? The answer is actually quite logical when you put some thought into it and I’ll explain that below. Before progressing, a side note. The standard deviation for the “Three Conditional Splits” dataflow is orders of magnitude smaller – indicating that performance for this dataflow can be predicted with much greater confidence too. The Explanation I refer you to the screenshot above that shows how CSPL Split by Month of Birth and salary category in the first dataflow is setup. Observe that there is a case for each combination of Month Of Date and Income Category – 24 in total. These expressions get evaluated in the order that they appear and hence if we assume that Month of Date and Income Category are uniformly distributed in the dataset we can deduce that the expected number of expression evaluations for each row is 12.5 i.e. 1 (the minimum) + 24 (the maximum) divided by 2 = 12.5. Now take a look at the screenshots for the second dataflow. We are doing one expression evaluation in DER Income Category and we have the same 24 cases in CSPL Split by Month of Birth and Income Category as we had before, only the expression differs slightly. In this case then we have 1 + 12.5 = 13.5 expected evaluations for each row – that would account for the slightly longer average execution time for this dataflow. Now onto the third dataflow, the quick one. CSPL Split by Income Category does a maximum of 2 expression evaluations thus the expected number of evaluations per row is 1.5. CSPL Split by Month of Birth 1 & CSPL Split by Month of Birth 2 both have less work to do than the previous Conditional Split components because they only have 12 cases to test for thus the expected number of expression evaluations is 6.5 There are two of them so total expected number of expression evaluations for this dataflow is 6.5 + 6.5 + 1.5 = 14.5. 14.5 is still more than 12.5 & 13.5 though so why is the third dataflow so much quicker? Simple, the conditional expressions in the first two dataflows have two boolean predicates to evaluate – one for Income Category and one for Month of Birth; the expressions in the Conditional Split in the third dataflow however only have one predicate thus they are doing a lot less work. To sum up, the difference in execution times can be attributed to the difference between: MONTH(BirthDate) == 1 && YearlyIncome <= 50000 and MONTH(BirthDate) == 1 In the first two dataflows YearlyIncome <= 50000 gets evaluated an average of 12.5 times for every row whereas in the third dataflow it is evaluated once and once only. Multiply those 11.5 extra operations by 4.7million rows and you get a significant amount of extra CPU cycles – that’s where our duration difference comes from. The Wrap-up The obvious point here is that adding new components to a dataflow isn’t necessarily going to make it go any slower, moreover you may be able to achieve significant improvements by splitting logic over multiple components rather than one. Performance tuning is all about reducing the amount of work that needs to be done and that doesn’t necessarily mean use less components, indeed sometimes you may be able to reduce workload in ways that aren’t immediately obvious as I think I have proven here. Of course there are many variables in play here and your mileage will most definitely vary. I encourage you to download the package and see if you get similar results – let me know in the comments. The package contains all three dataflows plus a fourth dataflow that will create the 2GB raw file for you (you will also need the [AdventureWorksDW2008] sample database from which to source the data); simply disable all dataflows except the one you want to test before executing the package and remember, execute using dtexec, not within BIDS. If you want to explore dataflow performance tuning in more detail then here are some links you might want to check out: Inequality joins, Asynchronous transformations and Lookups Destination Adapter Comparison Don’t turn the dataflow into a cursor SSIS Dataflow – Designing for performance (webinar) Any comments? Let me know! @Jamiet

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• Unable to terminate extra EC2 instances

  - by Deborah Cole

  I'm just setting up my AWS server & I'm trying to use the EC2 Console to terminate some extra instances that I generated via the AWS for Eclipse toolkit's New Project AWS Java Web Project utility. Unfortunately, every time I stop, then terminate such an instance via the EC2 Console, it automatically recreates & reactivates itself! I really don't want to be paying for 4 dev systems when I only need 1, so can somebody please clue me in? Please explain gently... I'm new to this environment.

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• Quickly Add Watermark To Multiple PDF Files Using “Batch PDF Watermark”

  - by Kavitha

  Want to add watermark to your PDF files with a single click? You can use the freeware Batch PDF Watermark. Batch PDF Watermark is super cool application that lets you add image or text watermarks to multiple files at a time. Office 2010 style ribbon user interface of the application is very easy to use and provides many options to configure watermark properties like – font styles, positioning, transparency levels, rotation of watermark image, scaling of watermark image and etc. Before running the watermark process, you can even preview it. To select multiple PDF files to watermark you can use “Add Files” option to hand pick required files or “Add Folder” option to choose all the PDF files available in the folder. Download Batch PDF Watermark [via liferocks] This article titled,Quickly Add Watermark To Multiple PDF Files Using “Batch PDF Watermark”, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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• "ldap_add: Naming violation (64)" error when configuring OpenLDAP

  - by user3215

  I am following the Ubuntu server guide to configure OpenLDAP on an Ubuntu 10.04 server, but can not get it to work. When I try to use sudo ldapadd -x -D cn=admin,dc=don,dc=com -W -f frontend.ldif I'm getting the following error: Enter LDAP Password: <entered 'secret' as password> adding new entry "dc=don,dc=com" ldap_add: Naming violation (64) additional info: value of single-valued naming attribute 'dc' conflicts with value present in entry Again when I try to do the same, I'm getting the following error: root@avy-desktop:/home/avy# sudo ldapadd -x -D cn=admin,dc=don,dc=com -W -f frontend.ldif Enter LDAP Password: ldap_bind: Invalid credentials (49) Here is the backend.ldif file: # Load dynamic backend modules dn: cn=module,cn=config objectClass: olcModuleList cn: module olcModulepath: /usr/lib/ldap olcModuleload: back_hdb # Database settings dn: olcDatabase=hdb,cn=config objectClass: olcDatabaseConfig objectClass: olcHdbConfig olcDatabase: {1}hdb olcSuffix: dc=don,dc=com olcDbDirectory: /var/lib/ldap olcRootDN: cn=admin,dc=don,dc=com olcRootPW: secret olcDbConfig: set_cachesize 0 2097152 0 olcDbConfig: set_lk_max_objects 1500 olcDbConfig: set_lk_max_locks 1500 olcDbConfig: set_lk_max_lockers 1500 olcDbIndex: objectClass eq olcLastMod: TRUE olcDbCheckpoint: 512 30 olcAccess: to attrs=userPassword by dn="cn=admin,dc=don,dc=com" write by anonymous auth by self write by * none olcAccess: to attrs=shadowLastChange by self write by * read olcAccess: to dn.base="" by * read olcAccess: to * by dn="cn=admin,dc=don,dc=com" write by * read frontend.ldif file: # Create top-level object in domain dn: dc=don,dc=com objectClass: top objectClass: dcObject objectclass: organization o: Example Organization dc: Example description: LDAP Example # Admin user. dn: cn=admin,dc=don,dc=com objectClass: simpleSecurityObject objectClass: organizationalRole cn: admin description: LDAP administrator userPassword: secret dn: ou=people,dc=don,dc=com objectClass: organizationalUnit ou: people dn: ou=groups,dc=don,dc=com objectClass: organizationalUnit ou: groups dn: uid=john,ou=people,dc=don,dc=com objectClass: inetOrgPerson objectClass: posixAccount objectClass: shadowAccount uid: john sn: Doe givenName: John cn: John Doe displayName: John Doe uidNumber: 1000 gidNumber: 10000 userPassword: password gecos: John Doe loginShell: /bin/bash homeDirectory: /home/john shadowExpire: -1 shadowFlag: 0 shadowWarning: 7 shadowMin: 8 shadowMax: 999999 shadowLastChange: 10877 mail: [email protected] postalCode: 31000 l: Toulouse o: Example mobile: +33 (0)6 xx xx xx xx homePhone: +33 (0)5 xx xx xx xx title: System Administrator postalAddress: initials: JD dn: cn=example,ou=groups,dc=don,dc=com objectClass: posixGroup cn: example gidNumber: 10000 Can anyone help me?

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• Tunnel only one program (UDP & TCP) through another server

  - by user136036

  I have a windows machine at home and a server with debian installed. I want to tunnel the UDP traffic from one (any only this) program on my windows machine through my server. For tcp traffic this was easy using putty as a socks5 proxy and then connecting via ssh to my server - but this does not seem to work for UDP. Then I setup dante as a socks5 proxy but it seems to create a new instance/thread per connection which leads to a huge ram usage for my server, so this was no option either. So most people recommend openvpn, so my question: Can I use openvpn to just tunnel this one program through my server? Is there a way to maybe create a local socks5 proxy on my windows machine and set it as a proxy in my program and only this proxy then will use openvpn? Thank you for your ideas

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• Installing ZendServer on IIS6

  - by Wayne M

  I need to run ASP and PHP applications side by side, so I installed ZendServer Community Edition on our existing Server 2003 platform. I specified it to use the existing IIS instance so I don't have to deal with multiple ports (we use ZoneEdit to manage our DNS and they don't seem to allow anything other than port 80 without forwarding). The install went smooth but when I try to configure and manage the install by going to http://localhost/ZendServer (or even just localhost) I get a Bad Request (Invalid Hostname) error. I haven't done anything except install the server, and this is my first time working with ZendServer. How do I fix this so I can get things set up?

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• Don&rsquo;t use MySQL .net connector, here is why ?

  - by Anirudha

  Originally posted on: http://geekswithblogs.net/anirugu/archive/2013/11/04/donrsquot-use-mysql-.net-connector-here-is-why.aspxIf you use .net mysql connector and all project new or old use different different version of Mysql .net connector then you need to upgrade it to latest (if you don’t use copy local=true for bin assembly). This is not the single problem happen to me.   In my case I use .net connector 6.7.4.0 and let’s see what happen to me after I start using it. 6.7.4.0 install register the mysql module in machine.config and it’s broke every software you haven’t deployed with Mysql.   Suppose for example I just create a website ( in webmatrix 3) put my index.cshtml and now see what it preview for me. This means I need to add the mysql.Web even I don’t use any kind of database. I need to do every asp.net mvc project no matter they use mysql. it’s problematic when we use older .net  mysql connector in some of my project.   If you have trouble like this simply use nuget and say Bye bye to this trouble.

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