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• Online remount btrfs of root filesystem with different subvolume (snapshot) [migrated]

  - by goncalopp

  Let's say you have a btrfs root filesystem on an online system. You want to revert the filesystem to an earlier state, of which you have a snapshot: remount /dev/sdaX / -o remount,subvol=snapshots/Y For the record, I've done this in a test system, and it does not work. The command returns with no errors, but the subvolume mounted is the same. If this did work, what would be the consequences? My guess is that open file descriptors would still point to the old subvolume, thus possibly leading to "data loss" on the new subvolume, if one was not careful. Assuming one goes to the trouble of closing and reopening all open file descriptors, does this sound feasible? Or are there other types of problems?

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• Running "Rebuild Index" maintenance plan with "Online indexing"

  - by Bharanidharan

  Hi I am using Windows Server 2003 SP 2 and SQL Server 2005 Enterprise edition I am creating a "Rebuild Index" job for a particular database and I am successfully able to run the job. But when I try to enable the "Keep index online while rebuilding" option, the job does not execute successfully and throws out errors. I have attached the screenshots. Any help would be app http://img535.imageshack.us/gal.php?g=error1r.png PS: I am not able to attach the images here since i do not have 10 points yet! Thanks.

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• E-Commerce website using blogging service

  - by Rohit

  I have been selling software products since last few years. I now want to sell them online. I have three ways in my mind: Using TypePad and integrating PayPal code in it. Get designed my own website. Buy a shopping cart online app. like Volusion etc. I am not selling all the products but only selected software products. I want to know which is the best solution in terms on cost, manageability and getting online response.

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• RAID5 on SmartArray P410i online resize

  - by datacompboy

  I have P410i+256M Cache without battery backup. My RAID5 was build over 3*136GB disks, now all disks were replaced to a 3*300GB array. How can I extend it to use the whole space? HPacucli doesn't allows that, I think this might be because no battery is present. I have a redundant power supply. All data is mirrored over DRBD to a secondary server, so I can try to resize with a chance of loss of data in case of power failure, but I prefer to have an online resize.

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• Move MySQL database while instance is online

  - by Mike Scott

  I have a MySQL instance containing a number of databases, one of which is an archive database (although using the INNODB rather than ARCHIVE storage engine) that is not queried or written to in normal operation. The data filesystem is filling up and I'd like to move the archive database's data directory to a different filesystem (and then symlink it back, obviously). If there are no SQL statements attempting to query or update the data during the move, can I safely do this while the MySQL instance and the other databases stay online and in use? I plan to rsync the database directory to the new filesystem, then rename the old one on the original filesystem to something different and create the new symlink. lsof reports that MySQL does have the .ibd files open, so presumably it would have to reopen them.

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• CA ArcServe r11.1 - have to switch Tape Drive Offline then Online to finish backup

  - by Richard

  Ill keep it brief, I have an HP Ultrium 1 in a server currently running CA ArcServe r11.1. I have 5 daily backup tapes, each of which are new. 3 of the 5 work fine without intervention but 2 of them stop at varying points through the backup asking for a new tape, even though that tape is not full. The way I have found around this is to switch the tape drive offline for 10 minutes then switch it back online, whilst the backup is still running. Has anyone ever seen this before? If so, any ideas how to permanently fix this. If all else fails just some pointers in the right direction. Thanks

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• O'Reilly Safari Books Online and Sony Reader

  - by Steve

  I've accumulated a good collection of book snippets in pdf format from Safari Online and I was thinking about getting an ebook reader, specifically the Sony-PRS300, to hold them all for portable reference. If anyone has done this, two questions. Are there any DRM restrictions when the pdfs are put on the reader? I can't see any restrictions flat out in the pdfs on my notebook. There's a watermark that says the pdf is licensed to me. How good is the reader at rendering complex pdfs, with code snippets and illustrations? I read a previous post where it works fine in landscape mode. I can deal with that. Thanks in advance.

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• Having Troubles Getting My Apache Server Online(NodeJS and Apache)

  - by Jeff Armingol

  I am new here. This is my situation. I am using nodejs modules, serialport2 and socket.io, because I am trying to forward the data from my arduino hardware through serialports. In my server side script, I read the data then forward it to the client side. Now I am using Apache to serve the html page,which is the client side. I am running Nodejs on port 8000 and Apache on port 80. It is running OKAY when I view it in my browser typing localhost:80. The data is appearing and seems fine. Now when I tried to get my Apache server online using a Free DDNS provider(http://www.noip.com/) and my port80, it loaded the webpage but there are no data appearing on the page. What seems to be the problem here? Really need your expertise and advice. Thanks in advanced!

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• CA ArcServe r11.1 - have to switch Tape Drive Offline then Online to finish backup

  - by Richard

  Ill keep it brief, I have an HP Ultrium 1 in a server currently running CA ArcServe r11.1. I have 5 daily backup tapes, each of which are new. 3 of the 5 work fine without intervention but 2 of them stop at varying points through the backup asking for a new tape, even though that tape is not full. The way I have found around this is to switch the tape drive offline for 10 minutes then switch it back online, whilst the backup is still running. Has anyone ever seen this before? If so, any ideas how to permanently fix this. If all else fails just some pointers in the right direction. Thanks

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• how to publish c# project online

  - by hero

  i have done a simple c# website that have a lot of pics (3000+). i want to publish the full website online. all i know is that i have to first buy a domain name, and then buy some space on a webhosting server. could anybody guide me? how much does a domain name usually cost? and also how should i upload the website on a hosting server? i mean should i upload the full code?

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• online to do list manager with subtasks

  - by alex

  I'm looking for an online task list tool, what I absolutely need is the infinite number of subtask levels, because that's how my mind works. I don't need collaboration. There are a lot of great to do list sites out there, but for some reason most of them have only one subtask level or no subtasks at all. I know about todoist, but its interface doesn't work for me. There must be many more, I guess. Links to desktop tools with the feature are also appreciated as long as they are cross-platform.

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• Richfaces - <rich:Editor> inside jQuery ui dialog

  - by Guus

  I use a <rich:editor> inside a JQuery UI dialog: <div id="helpDialog" style="display: none" title="#{messages.help}"> <rich:editor id="helpTextArea" theme="advanced" value="#{helpUtils.test(helpId)}"> <f:param name="theme_advanced_buttons1" value="bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,|,fontselect,fontsizeselect,|,forecolor,backcolor"/> <f:param name="theme_advanced_buttons2" value=""/> <f:param name="theme_advanced_buttons3" value=""/> <f:param name="theme_advanced_toolbar_location" value="top"/> <f:param name="width" value="90%"/> <f:param name="theme_advanced_toolbar_align" value="left"/> </rich:editor> <p> <button id="editHelpButton">#{messages.edit}</button> <button id="saveHelpButton">#{messages.save}</button> </p> </div> When I click on "font family" or "font size" the dropdown box is shown in the upper left corner of the screen and not inside the dialog. (see screenshot) How can I fix this? screenshot

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• Render label for a field inside ASP.NET MVC 2 editor templates

  - by artvolk

  I'm starting to use DataAnnotations in ASP.NET MVC and strongly typed template helpers. Now I have this in my views (Snippet is my custom type, Created is DateTime): <tr> <td><%= Html.LabelFor(f => Model.Snippet.Created) %>:</td> <td><%= Html.EditorFor(f => Model.Snippet.Created)%></td> </tr> The editor template for DateTime is like this: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<System.DateTime>" %> <%=Html.TextBox("", Model.ToString("g"))%> But now I want to put inside editor template the whole <tr>, so I'd like to have just this in my view: <%= Html.EditorFor(f => Model.Snippet.Created)%> And something like this in editor template, but I don't know how to render for for label attribute, it should be Snippet_Created for my example, the same as id\name for textbox, so pseudo code: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<System.DateTime>" %> <tr> <td><label for="<What to place here???>"><%=ViewData.ModelMetadata.DisplayName %></label></td> <td><%=Html.TextBox("", Model.ToString("g"))%></td> </tr> The Html.TextBox() have the first parameter empty and id\name for textbox is generated corectly. Thanks in advance!

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• Colour manipulation of custom tags in niceEdit HTML editor ( JS / DOM )

  - by Chris

  Hi, I would like to be able to highlight, during typing and in real time, certain custom tags in the format #tag_name# within the text of a nicEdit instance ( http://nicedit.com/ ). My current attempt to implement as close to this as possible revolves around using the blur event of the editor to highlight the tags once the editor loses focus. I then use the following logic to wrap the tags in a span with a highlight class.. htmlEditor.addEvent( "blur", function( ) { str = nicEditors.findEditor( "html_content" ).getContent( ); // Remove existing spans first, leaving just the tag ( this could mess up if the html has been edited directly ) str = str.replace( /(<span class=\"highlight\">)(.[^<]+)(<\/span>)/gi, "$2" ); // Then wrap all instances of a particular tag with the highlight span str = str.replace( /#tag_name#/gi, "<span class='highlight'>#tag_name#</span>" ); nicEditors.findEditor( "html_content" ).setContent( str ); }); This is not ideal as my actual text now contains unwanted spans ( I only want the highlighting for the user's input experience, not to be saved to the database ). Obviously I could remove the spans before saving the text but the whole system is currently open to errors ( If the html is directly edited then other text may get highlighted etc ). What I would like to know is.. Is there any way to directly change the colour of the tags in the editor or DOM without using a mechanism such as this? Perhaps a way of colouring the text in memory rather than changing the HTML ? Any ideas ? Regards Chris P

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• Text editor(FCKEditor) ruby on rails/ PHP

  - by Steven

  I have an application that is running on Rials so now I want to add the text editor(FCKEditor/TinyMCE) to adit text/uploading images on website. I have google the internet until I got FCKeditor for Rails(http://rubyforge.org/projects/fckeditorp/) "which has a function of uploading pictures but ones you uploaded the images you can't delete/rename them :( " I tried to look for another solution and I got another FCKEditor - Ajax File Manager plugin for PHP(it works fine on my Rails Application) but the problem is I need some information from rails to use it in php e.g: session for the current login user. 1.) is there anyone got an Idea on how to get those Ruby sessions in php script? 2.) I looked at saving it in javascript session and access it in php via javascript cause both can talk to Javascript. 3.) or is there any Rails text editor which has a functionality of uploading/deleting the images? 4.) Or any better way of doing this... cause the only thing I need is the text editor that will allow me to uploaded/delete images NOt via the url but the one that will save the images on the server. Steven

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• Interactive console based CSV editor

  - by Penguin Nurse

  Although spreadsheet applications for editing CSV files on the console used to be one of the earliest killer applications for personal computers, only few of them and even less documentation about them is still actively maintained. After having done extensive search on the web, manpages and source code, I ended up with the following three applications that all have fundamental drawbacks: sc: abbrev. for spreadsheet calculator; nice tool with vi keybings, but it does not put strings containing the delimiter into quotas when exporting to delimiter separated format and can't import csv files correctly, i.e. all numbers are interpreted as strings GNU oleo: doesn't seem to be actively maintained any longer since 2001 and there are therefore no packages for major linux distributions teapot: offers packages for various operating systems, but uses for example counter-intuitive naming for cells (numbers for row and column, i.e. 11 seems to be intended to be row 1, column 1) and superfluous code for FLTK GUI Various Emacs modes also do not quote strings containing the delimiter well or are require much more typing for entering the scaffold of a table. Therefore I would be very grateful for overcoming one of theses drawbacks or any hints towards another console based CSV editor. It actually needn't do any calculations just editing cells or column- and rowise.

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• Question for Vim search and peck typists

  - by mike

  I'm trying to write a Vim tutorial and I'd like to start by dismissing a few misconceptions, as well as giving some recommendations. I don't know if I should dismiss touch-typing as a misconception, or include it as a recommended prerequisite. At the time I learned the editor, I had already been touch typing for a couple of years, so I have absolutely no idea what would be the experience of a two-fingered typist in Vim. Are you a vim two-fingered typist? what has your experience been like? EDIT: I'm not sure if my question was clear enough. Maybe it's my fault, I don't know. I get mixed replies and other questions (why do you write this? what does one have to do with the other?), instead of empirical info (I don't touch type and it's been (fine|hell)). Some programmers touch-type others search and peck. In the middle, there's Vim which requires a certain affinity with keys to do various operations. I am a touch typist and I have no clue what my experience would have been like with the editor if I wasn't. I can't honestly picture myself pecking some of these combos. But like I said, I don't know what it is like. Before telling someone to start using Vim, I'd like to know if I should dismiss touch-typing as a misconceived requirement. So, I'll rephrase the question, have you felt that not being a touch-typist has impeded on your experience with Vim?

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• Win32 API P-Invoke to bring a disk online, offline, and set unique ID

  - by Andy Schneider

  I am currently using Diskpart to accomplish these functions, but i would like to be able to use P-Invoke and not have to shell out to an external process in my C# app. The example Diskpart scripts are: //Online a disk Select disk 7 disk online // Reset GPT Identifier select disk 7 UNIQUEID DISK ID=baf784e7-6bbd-4cfb-aaac-e86c96e166ee I tried searching pinvoke.net but could only find functions that dealt with volumes, not disks. Any idea on how to accomplish these diskpart commands using Pinvoke?

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• Genetic Programming Online Learning

  - by Lirik

  Has anybody seen a GP implemented with online learning rather than the standard offline learning? I've done some stuff with genetic programs and I simply can't figure out what would be a good way to make the learning process online. Please let me know if you have any ideas, seen any implementations, or have any references that I can look at.

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• Online interview quiz

  - by Deano

  I am currently interviewing for a developer role in my company and I have had a lot of poor candidates come in so far. One of the things we have discussed is providing an online test for the candidates to fill in. Has anyone ever used an online service like this? Even if the service charges a fee that is not a problem. I would prefer if the candidates quiz results were confidential.

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• Creating membership tables online

  - by JPJedi

  I want to create the membership tables online that are used for ASP.Net 3.5 login controls. I thought their was a script I could use or executable on my computer to install those tables. Is that the case? or what would be the best method to create the tables online.

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• Chatroom, show who is online

  - by proyb

  Using BlazeDS, I have developed a simple chat room but how do I go about showing who is online and what happen if the user close the web browser without disconnect, will the user name in the online list be remove immediately? I use mx.messaging.channels.StreamingAMFChannel and set <subscription-timeout-minutes>3</subscription-timeout-minutes>

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• Best online resource to learn Python?

  - by Sreenath

  I am new to any scripting language. But, Still I worked on scripting a bit like tailoring other scripts to work for my purpose. For me, What is the best online resource to learn Python? Some Online Resources: http://docs.python.org/tut/tut.html - Beginners http://diveintopython.org/ - Intermediate http://www.pythonchallenge.com/ - Expert Skills http://docs.python.org/ - collection of all knowledge Some more: A Byte of Python. Python 2.5 Quick Reference Python Side bar A Nice blog for beginners Think Python: An Introduction to Software Design

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• online CSS optimizer?

  - by Dand

  Is there an online CSS optimizer equivalent to Googles JavaScript Closure Optimizer. I've found plenty of CSS compressors online, but I'm looking for a CSS optimizer ... where it actually removes redundant/conflicting attributes

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• Online Database

  - by Narancha

  Hello! I want to write an application that reads blogpost from the internet and then present in my own way. The blogposts are stored in databases, so I figured that the only thing I had to do was to query an online database for the posts that I want to show.. But I can´t find a way to opoen a connecion to an online database... anyone out there with a solution to my problem? //Narancha

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