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• Adding MySQL servers/ data nodes into database clustering without restarting mysql cluster

  - by Dwayne Johnson

  I currently have mysql clustering up and running. For high scalability is there a way to include either mysql node, data nodes, or management nodes without restarting the entire cluster. I wish to understand how is it implement or is there a documentation I can read. I believe only the latest version can support this. I am running NDB 7.0. I am aware that I am able to add the nodes online, but it requires me perform a rolling restart. What other approach I can take to implement this without restarting in my network?

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• Boot drive is incorrect one.

  - by Dwayne

  I have several hard drives installed. I normally use c: as my boot drive and a much larger drive (h:) for storing most of my files. I found a subfolder in my c:windows folder named windows after a failed reinstall of Vista. Upon inspection I determined it to be older than the c:windows folder and therefore it must be the older, working version of the boot. I renamed the c:windows folder to c:windows.bad and moved the sub windows to the c: root directory. I also copied it to the h: drive. Now MSCONFIG reports that the copy that is booting is the h: copy. How can I change it back to the c: copy and can I delete the c:windows.bad file set?

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• Two instances of Windows Vista on boot up after failed clean install

  - by Dwayne

  I tried to install a clean version of Vista but failed. I ended up with Windows and Windows.old on my C: drive and a dual boot option on boot up. I gave up and booted up the old version and tried to rename the Windows.old to Windows and was asked if I wanted to merge the two folders. I answered yes and all seemed OK until I booted up this morning and was given the choice of two versions of Vista. The first one is the one that failed to installed correctly and the second one is the old version. How can I get rid of the failed installation? I got rid of the bad boot via MSCONFIG. Here is my current situation: several hard drives installed Using C: as my boot drive a much larger drive (H:) for storing most of my files. I found a subfolder in my C:\windows folder named windows. Upon inspection I determined it to be older than the C:\windows folder and therefore it must be the older, working version of the boot. I renamed the C:\windows folder to c:\windows.bad and moved the sub windows to the C: root directory. I also copied it to the h: drive. Now MSCONFIG reports that the copy that is booting is the h: copy. How can I change it back to the C:\ copy and can I delete the C:\windows.bad file set?

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• Installing a .Cab file in Vista Home

  - by Dwayne

  Im having a bit of a problem installing a .CAB. Does anyone here know how to?

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• Windows bios fails to boot up, keeps resetting

  - by Dwayne Diamond

  When I turn the computer on this error always happens wher jus after it starts up this screen pops up wher it says F1 to enter BIOS setup or F2 to start Windows Normally and if I press F2 it goes into Windows but freezez then I hav 2 turn the pc off, Problem is the BIOS + Date and Time keeps resetting itself somehow and it's not the battery because I put a new one in so when I manage 2 load default settings and get it working after some struggle and I shut down the pc the next day I switch the pc on and does the whole process again... What could this problem be and how can I fix it??? Thank you

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• DNS point to server on ISP and keep shared host too?

  - by Dwayne

  I know this is probably quite easy to do, but I might just have the right search sorted out... so here is the situation: We have example.com set up as a hosted server along with app1.example.com, app2.example.com and a few others. What I would like to do is set up the right zone file to also make our internal server addressable from the outside world as internalapp.example.com. This server sits behind a firewall (pfsense) and is hooked up to the world via a cable modem that is technically on DHCP from our ISP, but has had the same external IP for the past 15 months so far. What would be the best way to set this up?

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• How do you become a freelance developer?

  - by Dwayne

  I have been a developer for 10+ years now working for various companies; I have 5+ years of .NET and ASP.NET experience. What I want to do is break away and become my own boss. Ideally I want this to lead into owning my own company. Where do I start? Has anyone done this recently? Do you have any tips?

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• Codeigniter: Base_url doesn't seem to be working

  - by Dwayne

  I have developed a simple site that fetches tweets from the Twitter public timeline, caches them for 60 seconds and so on. I have recently moved hosts from Hostgator to Mediatemple and my site was previously working fine on Hostgator. My application doesn't use a database connection, nor does it use any form of flat-file database either. Tweets are cached in an XML file stored in the root directory, not that most of that is important. The url helper is being included as can be seen below (this is my helpers line from autoload.php): $autoload['helper'] = array('url'); I have also removed my index.php file from the URL using .htaccess directives and once again this was previously working on Hostgator (see my .htaccess code below): RewriteEngine On RewriteRule ^(application) - [F,L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule .* index.php/$0 [PT,L] In my home.php view file which is in the views folder inside of application, I am using the function base_url() which was previously working on Hostgator inside of my view files and appending it a base href value in my header: <base href="<?php echo base_url(); ?>" /> Here is what my base_url value looks like in the config.php file: $config['base_url'] = "http://threetune.com/"; Although what appears to be happening is that the base_url is not to be seen at all. It doesn't appear to be echoing out the value of base_url as it appears to be empty for some reason. What makes things weirder is that I have a link in another view file called 'fetch.php' and for some reason it appears to be stripping out the value (XSS filtering is off): <a href="threetune/show"><img src="assets/images/cookie.jpg" /></a> The threetune/show part is not to be seen and I only see an empty href value like this <a href=""><img src="assets/images/cookie.jpg" /></a> Can anyone possibly see anything wrong that I may have done, some kind of Mediatemple server limitation or PHP.ini flag that needs to be set? Thank you and I hope I was descriptive enough.

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• Trouble cross-referencing two XML child nodes in AS3

  - by Dwayne

  I am building a mini language translator out of XML nodes and Actionscript 3. I have my XML ready. It contains a series of nodes with two children in them. Here is a sample: <translations> <entry> <english>man</english> <cockney>geeza</cockney> </entry> <entry> <english>woman</english> <cockney>lily</cockney> </entry> </translations> The AS3 part consist of one input box named "textfield_txt" where the English word will be typed in. An output text field for the translation called "cockney_txt". Finally, one button to execute the translation called "generate_mc". The idea is to have actionscript look through the XML for key English words after the user types it in the "textfield", cross-freferences the children then returns the Cockney translation as a value. The trouble is, when I test it I get no response or error messages- it's completely silent. I'm not sure what I'm doing wrong. At present, I have setup a conditional statement to tell me whether the function works or not. The result is, no it's not! Here's the code below. I hope someone can help. Cheers! generate_mc.buttonMode=true; var English:String; var myXML:XML; var myLoader:URLLoader = new URLLoader(); myLoader.load(new URLRequest("Language.xml")); myLoader.addEventListener(Event.COMPLETE, processXML); function processXML(e:Event):void { myXML = new XML(e.target.data); } generate_mc.addEventListener(MouseEvent.CLICK, onClick); function onClick(event:MouseEvent) { English = textfield.text; cockney_txt.text = myXML.translations.entry.cockney; if(textfield.text.toLowerCase() == myXML.translations.entry.english.toLowerCase){ //return myXML.translations.entry.cockney; trace("success"); }else{ trace("try again!"); // ***I get this as a result } }

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• How Can I Convert A VMware .vmdk File To A .iso File in Windows

  - by Dwayne

  I recently obtained a copy of Mac OS Snow Leopard in VMware (.vmdk) format. It is incredibly slow when running virtualised and I would like to just install it directly to my machine dual booting with Windows 7 (32 bit). Is there any way preferably free that I can convert a VMware .vmdk image to an .iso I can burn to a DVD to boot from? I've seen this done in Linux and presume there is a way to do it in Windows as well. Downloading another copy that isn't a VMware image isn't an option considering my broadband plan is creeping closer to its limit for the month.

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• How does one go about understanding GNU source code?

  - by Max Dwayne

  I'm really sorry if this sounds kinda dumb. I just finished reading K&R and I worked on some of the exercises. This summer, for my project, I'm thinking of re-implementing a linux utility to expand my understanding of C further so I downloaded the source for GNU tar and sed as they both seem interesting. However, I'm having trouble understanding where it starts, where's the main implementation, where all the weird macros came from, etc. I have a lot of time so that's not really an issue. Am I supposed to familiarize myself with the GNU toolchain (ie. make, binutils, ..) first in order to understand the programs? Or maybe I should start with something a bit smaller (if there's such a thing) ? I have little bit of experience with Java, C++ and python if that matters. Thanks!

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• Fade out text value inside of text field using jQuery

  - by Dwayne

  I am not entirely sure if this is possible or not, I am pretty knowledgeable when it comes to jQuery and JavaScript in general, but this one has me stumped. I've created a simple plugin that clears a text input on focus and then displays the default value if nothing has been entered. Is it possible to fade out just the text itself inside of the text input, and not the whole field itself? All attempts seem to result in the text field itself fading out and eventually hiding the element from view. I did come up with a solution of using spans containing the default value and absolutely positioning them over the text input, hiding and showing them depending if a user has entered any text or not. I would much rather a much straightforward approach if one exists.

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• Objective C instance variables - Newbie

  - by Dwayne King

  OK - so I'm sure my confusion here is just a result of being stuck in a "Java mindset" and not understanding how Obj C differs in this case. In Java, I can declare a variable in a class, like this, and each instance of that class will have it's own: MyClass { String myVar; MyClass() { // constructor } } In Obj C I tried to do the same thing by declaring a variable only in the .m file like this: #import "MyClass.h" @implementation MyClass NSString *testVar; @end My expectation here was that this variable has a scope limited to this class. So I created a second class (identical): #import "MySecondClass.h" @implementation MySecondClass NSString *testVar; @end What I'm seeing (and has me baffled) is that changing the variable in one class, affects the value seen in the other class. In fact, if I set a breakpoint, and then "Jump to Definition" of the variable, it takes me to th I've created an extremely small XCode project that demonstrates the problem here Nothing more humbling than moving to a new language :) Thanks in advance.

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• JSF commandButton URL parameters

  - by DD

  Hi, I would like to make a button which navigates to a different URL and pass some request parameters through in the URL. The outputLink works but I would like a button, the commandButton looks good but I can pass parameters. Is there a solution? Thanks, Dwayne

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• Hibernate Bi-Directional ManyToMany Updates with Second Level cache

  - by DD

  I have a bidirectional many-to-many class: public class A{ @ManyToMany(mappedBy="listA") private List<B> listB; } public class B{ @ManyToMany private List<A> listA; } Now I save a listA into B: b.setListA(listA); This all works fine until I turn on second-level caching on the collection a.ListB. Now, when I update the list in B, a.listB does not get updated and remains stale. How do you get around this? Thanks, Dwayne

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