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• Backup and restore MySQL database without system access

  - by Sencerd

  Hi guys, I am trying to move a database from 1 provider to another, the problem is that I don't have system access at either end (ie, no ssh), so I cannot use a mysqldump. I have already tried using MySQL Administrator, the backup took about 45 minutes, but when it came to restoring it was moving at a snails pace, and estimating 12+ hours. This is a live app so I need to keep the downtime to an absolute minimum. The database consists of 35 tables, a mixture of MyISAM and InnoDB, the whole thing comes to about 4.4GB. The source and destination databases are both running on very powerful servers. Any suggestions on a quick way of doing this will be gratefully received. Thanks

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• Apache Rewrite Rules breaking each other?

  - by neezer

  I have this rule: RewriteCond %{REQUEST_URI} ^/(manhattan|queens|westchester|new-jersey|bronx|brooklyn)-apartments/.*$ RewriteCond %{REQUEST_URI} !^/guide/(.*)$ RewriteRule ^(.*)$ /home/neezer/public-html/domain.com/guide/$1 [L] Which works great on it's own. Essentially, I have a bunch of directories that have a bunch of files in them that I want to keep in the "/guide" folder, but I want them to appear at the web root for SEO reasons. This rule works, but unfortunately the original URL's still work too (with "/guide"). I want to 301 Redirect the ones with "/guide" in the URL to those without, without actually moving the files on the server. I tried adding this rule: RewriteCond %{REQUEST_URI} ^/guide/(manhattan|queens|westchester|new-jersey|bronx|brooklyn)-apartments/.*$ RewriteRule ^guide/(.*)$ http://www.domain.com/$1 [R=301,L] ... but that breaks my first rule completely. Any thoughts about what I might be doing wrong? Please let me know if you need to know anything else from me to help me with this issue.

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• Drag lock crisis with Windows 7 and Apple Magic Trackpad

  - by rockinthesixstring

  This is driving me insane and I've scowered the web for two days trying to fix this. I just picked up an Apple Magic Trackpad to be used exclusively on a Windows 7 PC (not apple with bootcamp). I found a nice driver that got it working right away, but when I'm moving the cursor around the screen, often it will begin "highlighting" text, or picking up and dragging things I don't want it to. I looked in the "regedit" where people are saying there is binary that can be changed, however the driver I installed doesn't use the binary being suggested. Can anyone suggest a better driver for my situation or a way to disable the drag lock that is driving me so nuts? I don't mind not being able to lift my finger when dragging, it's a far better compromise than having the insane feature.

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• Using Google's App Engine as CDN for static files

  - by Saif Bechan

  I am planning on moving my static files to Google's App Engine. I was wondering if this is a good idea to do. I have read that is it possible that Google will cache your files on multiple locations, which is a good thing in my opinion. The setup should also be quite easy in eclipse with the GAE plugins. But i still have my doubts on the performance of this. Is the setup of App Engine optimized for serving static content. Now I have Nginx server my static content, will App Engine perform the same way. Are there any other ups or downs using this method?

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• I have to shard a mysql database. I want to start with 12 shards on 2 machines. What is the best w

  - by Tim

  All tables are InnoDb. I would rather not use mysqldump, because the shard sizes will be about 200 GB (about 700 million rows), and that will take too long. I was hoping to just stop mysql for an hour, copy the data files to a new machine, and start back up. But you can't do this with InnoDb, as some data is in the shared tablespace. Even if I have the innodb_file_per_table option set. This is not a website, but a custom application, used by tens of thousands right now, so uptime and performance are important. I suppose I could add logic into my server application to allow for gradual rebalancing / moving of a shard. Does anyone have a better idea?

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• Best way to convert from IMAP to POP3?

  - by Brad

  At work, I connect to a corporate Exchange server via IMAP and Thunderbird 3. Over the course of a year or so, I've created quite a few folders on the server and have a lot of mail stored there. I'm hitting the storage limit of my mail account and want to convert to pulling mail down to my local box (running Linux) via POP3. I know that polling mail will only get mail in INBOX, but I'm wondering if there are solutions out there that could be used to pull mail from the other folders as well, or am I doomed to moving mail into the inbox manually and polling over and over again?

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• Backing up data in an encrypted way

  - by Eli Bendersky

  I have the following use case: There's some data from my PC I want to periodically back-up online I own some hosting, so I want to use that for the backups, don't want to pay to another backup service I want to encrypt my data locally prior to moving it to the server I have no problem writing scripts to automate the process (say, periodically generate the backup and upload by FTP to my server), but my main question is about step 3 - the encryption: which way is recommended to encrypt my files (say, collected into a .ZIP) prior to uploading to the server? P.S. TrueCrypt seems popular but it's not quite what I'm looking for, since I don't want the files to be constantly encrypted here on my PC.

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• Trackpad Drag lock pissing me off with Windows 7

  - by rockinthesixstring

  This is driving me insane and I've scowered the web for two days trying to fix this. I just picked up an Apple Magic Trackpad to be used exclusively on a Windows 7 PC (not apple with bootcamp). I found a nice driver that got it working right away, but when I'm moving the cursor around the screen, often it will begin "highlighting" text, or picking up and dragging things I don't want it to. I looked in the "regedit" where people are saying there is binary that can be changed, however the driver I installed doesn't use the binary being suggested. Can anyone suggest a better driver for my situation or a way to disable the drag lock that is driving me so nuts? I don't mind not being able to lift my finger when dragging, it's a far better compromise than having the insane feature.

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• SQL Server backup/restore error: The Media Family on Device is Incorrectly Formed.

  - by Chris

  Basically, I'm having this issue: http://www.sqlcoffee.com/Troubleshooting047.htm What I'm doing is running a script I found online (http://pastebin.com/3n0ZfybL) to do a full backup, then rar'ing up the file and moving it to my computer. The CRC of the backup file inside the rar is correct on both computers, so there is no problem with data being corrupted when I transfer it. But then I go and try to restore the database on my dev computer here and I get the errors "sql server cannot process this media family" ... "msg 3013". Why is this happening? I'd test out the backup on the server I'm getting it from, but it's a production server.

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• MySQL indexes: how do they work?

  - by bob-the-destroyer

  I'm a complete newbie with MySQL indexes. I have several MyISAM tables on MySQL 5.0x having utf8 charsets and collations with 100k+ records each. The primary keys are generally integer. Many columns on each table may have duplicate values. I need to quickly count, sum, average, or otherwise perform custom calculations on any number of fields in each table or joined on any number of others. I found this page giving an overview of MySQL index usage: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html, but I'm still not sure I'm using indexes right. Just when I think I've made the perfect index out of a collection of fields I want to calculate against, I get the "index must be under 1000 bytes" error. Can anyone explain how to most efficiently create and use indexes to speed up queries? Caveat: upgrading Mysql is not possible in this case. Using Navicat Light for db administration, but this app isn't required.

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• Speeding up jQuery empty() or replaceWith() Functions When Dealing with Large DOM Elements

  - by Levi Hackwith

  Let me start off by apologizing for not giving a code snippet. The project I'm working on is proprietary and I'm afraid I can't show exactly what I'm working on. However, I'll do my best to be descriptive. Here's a breakdown of what goes on in my application: User clicks a button Server retrieves a list of images in the form of a data-table Each row in the table contains 8 data-cells that in turn each contain one hyperlink Each request by the user can contain up to 50 rows (I can change this number if need be) That means the table contains upwards of 800 individual DOM elements My analysis shows that jQuery("#dataTable").empty() and jQuery("#dataTable).replaceWith(tableCloneObject) take up 97% of my overall processing time and take on average 4 - 6 seconds to complete. I'm looking for a way to speed up either of the above mentioned jQuery functions when dealing with massive DOM elements that need to be removed / replaced. I hope my explanation helps.

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• Parsing a CSV File to a Rails Database

  - by Schroedinger

  G'day guys, I'm using fasterCSV and a rake script to parse a csv with about 30 columns into my rails db for a 'Trade' item. The script works fine when all of the values are set to strings, but when I change it to a decimal, int or other value, everything goes to hell. Wondering if fasterCSV has built in int etc parsing or whether I'll have to manage these within my model. Basically, I'm given a giant amount of trades data, need to import it, and then need to provide feedback with say the average trade volume, the times, etc. I understand I can do that all with the wonderful records provided to me by activeRecord but wondered if there was an easier way to populate a rather large Database with a given CSV? Several of the fields don't have values for certain rows, fasterCSV seems to work perfectly when they're all strings, but not when I try to get decimal or other.

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• How to recover C:\Users folder

  - by Matías Fidemraizer

  Today I was moving C:\Users to another partition using symlink method. I had the great idea of making the symlink from C:\Users = U:\, instead of C:\Users = U:\Users. Sadly, I've deleted the original "Users" folder and now, when I try to login, it says that The User Profile Service failed the logon. Maybe I'm wrong, but this is because the root directory of user profiles isn't the system one, so now when I create C:\Users, I can't log into Windows and I get the above error message. How can create a new C:\Users directory and workaround the problem? Thank you in advance!

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• How to manage a home-grown YUM package repo?

  - by TomOnTime

  There are plenty of websites that explain how to manage a mirror of YUM repos. I want to run a repo for my home-grown packages. Is there a good way to manage such repos? What I need to do: Manage 3 repos: unstable, testing, stable Self-service functions that let users add/remove/promote packages (promote means moving a package unstable?testing or testing-stable). ACLs that control which users/groups may add/remove/promote packages. Automatically re-sign packages as they move repo to repo (since the GPG key for "stable" should be different than "unstable") Automatically run "createrepo" to update repodata when needed. Suggestions?

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• Do virtual machines perform better on the host HDD or USB drive?

  - by Jeremy Ricketts

  The question I'm asking is kind of general, and I'll give more specifics about my specific setup. Here's the main question though: Do virtual machines generally perform better on the host HDD or is it better to operate them from an external disk? My specific setup: A Macbook Pro with a nearly full internal SATA drive that spins at 7200. On this system I'm running large programs like Photoshop and some other RAM-intense applications. I've dedicated 2 of my 8 gigs of RAM to my VMware Fusion virtual machine, which runs Windows 7 and Visual Studio, sits on the same drive. When that thing boots up, my system really starts crawling. I have an external USB (specifics of that drive are here) which I'm thinking about moving the VM to. Obviously a USB drive is slower than my internal HDD, but maybe having two operating systems using the same disk is WORSE than putting one of them on a separate (albiet slower) disk. This a bad idea?

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• Python / Django : emulating a multidimensional layer on a MySQL database

  - by Sébastien Piquemal

  Hi, I'm working on a Django project where I need to provide a lot of different visualizations on the same data (for example average of a value for each month, for each year / for a location, etc...). I have been using an OLAP database once in college, and I thought that it would fit my needs, but it appears that it is much too heavy for what I need. Actually the volume of data is not very big, so I don't need any optimization, just a way to present different visualizations of the same data without having to write 1000 times the same code. So, to recap, I need a python library: to emulate a multidimensional database (OLAP style would be nice because I think it is quite convenient : star structure, and everything) non-intrusive, because I can't modify anything on the existing MySQL database easy-to-use, because otherwise there's no point in replacing some overhead by another.

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• Outlook 2010: When sending message on behalf of someone else, store that message in the other person's Sent Items folder

  - by Helge Klein

  We have an e-mail account for support purposes which is tended to by multiple members of the team. When answering a support e-mail we obviously choose the support account as sender. Still, the answer is not stored in the support account's Sent Items folder, but in the Sent Items of the person actually answering. This behavior, which seems to be by design, prevents others from gaining access to the entire conversation and potentially causes multiple answers. I am looking for an automated way of moving e-mails sent on behalf of someone else to that person's Sent Items folder. I tried to create a rule for this but could not find the right setting.

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• I have a server running Windows 2008 R2 Core and it needs to hosts either SVN or GIT

  - by Jason Adams

  The server allocated for our cross platform projects (both Mac & PC) source repository is running Win2008R2 Core. We're really happy with its stability and we aren't interested in moving over to non-core. We need to get either SVN or GIT installed on the aforementioned box in the shortest amount of steps. We know the advantages/disadvantages of both systems. That being said, we don't care which one we use, we're just are looking for the path of least resistance on setting up a repository on a machine running R2 core.

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• OpenSCAD keeps crashing when I raise my precision past $fn=29?

  - by Jeremy Quick

  Out of the blue, OpenSCAD decided to stop working for me on designs that previously rendered just fine. After playing around I found out that any time I use a precision greater than $fn=29 the program crashes with the message "openscad.exe has stopped working". I can use any precision 29 and below, but the second I adjust it to even 30 the program crashes. This is a major problem as before I was using a precision of 100, and without it the design's moving parts do not work on print. I have uninstalled and reinstalled the program several times and haven't been able to fix the problem. I have watched the CPU during the calculations and it never reaches more than 35%. Does anyone have any suggestions as to how to fix this problem? I also have not changed computers or even the code. Thanks! I am using Windows 32 bit, Version 2013.06. The default version from the website.

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• Set a row to follow my cursor anywhere in Calc

  - by NoCanDo

  How do I make a whole row follow wherever I am in the Calc document when I scroll down/up? I'm looking for something that keeps a row from moving, or to make it stay put. This is so that when I want to see other rows, this one locked row will stay in place and allow me to refer back to it on screen without having to scroll all the way back up to the top of the document. Normal: Scrolled down: Further scrolled down: You can see the row with the yellow background, (CD-Nr.|Title|Genre|Lang|CD) is following me as I scroll down. How is this done?

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• psloggedon timeout question.

  - by user60707

  Hi guys, I have a list of machine names from my network that I have put in a batchfile to run through the list and show me who is logged onto each. psloggedon \machineA psloggedon \machineB psloggedon \machineC psloggedon \machineD psloggedon \machineE psloggedon \machineF Psloggedon works fine, however when it hits a machine that isnt actually on the network, it hangs for a good 30 - 60 seconds before moving onto the next machine...I was just wondering if there was any way to speed this up so that if it hits a machine that isnt on the network, it moves onto the next machine in the list much quicker. I have read in other places that this could be possible by adding a ping -n loop into the command but im not sure how to get that to work? any ideas guys? Many thanks in advance. Jimmy

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• Get-QADComputer -LdapFilter & NOT operator

  - by dboftlp

  I'm having issues excluding an OU from my LDAP filter $DaysAgo = (Get-Date).AddDays(-31) $ft = $DaysAgo.ToFileTime() Get-QADComputer -SizeLimit 0 -IncludeAllProperties -SearchRoot 'DC=My,DC=Domain,DC=Local' -LdapFilter "(&(objectcategory=computer)(lastLogonTimeStamp<=$ft) (!(ou:dn:=DisabledPCs))(|(operatingsystem=Windows 2000 Professional) (operatingSystem=Windows XP*)(operatingSystem=Windows 7*) (operatingSystem=Windows Vista*)(operatingsystem=Windows 2000 Server) (operatingsystem=Windows Server*)))" I'm looking to query for all Windows OS systems that haven't logged in to AD for more than 31 days & that are not already in the OU "DisabledPCs", which is where I'll be moving them to. When I run it now, I'm getting all the systems I'm looking for, including those in the "DisabledPCs" OU... I've tried several variations including: (&(!(ou:dn:=DisabledPCs))) As well as putting it in different locations in the filter (not that I thought it would make a difference, but I obviously don't know that...) Thanks in advance for any help, -dboftlp

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• What explains the term orthogonal in a more non-nerd fashion?

  - by dontWatchMyProfile

  For example: Cardinality and optionality are orthogonal properties of a relationship. You can specify that a relationship is optional, even if you have specified upper and/or lower bounds. This means that there do not have to be any objects at the destination, but if there are then the number of objects must lie within the bounds specified. What exactly does "orthogonal" mean? I bet it's just a fancy soundig nerd-style word for something that could be expressed a lot easier to understand for average people ;) From wikipedia: In mathematics, two vectors are orthogonal if they are perpendicular, i.e., they form a right angle. The word comes from the Greek ????? (orthos), meaning "straight", and ????a (gonia), meaning "angle". Anyone?

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• Using sed to convert hex characters in postgresql dump file

  - by Bernt

  I am working on moving several databases from a Postgresql 8.3 server to a Postgresql 8.4 server. It has worked fine so far, but one base has given me some trouble. The database is listed as unicode-encoded in the 8.3-server, but somehow a client program has managed to inject some invalid unicode data into it. When I do a normal dump and restore using postgres' custom format, the new server won't accept it, complaining about unicode errors. My plan is to do a plain text dump of the database, then use sed to replace the invalid characters with nothing (they are not needed). But how do you make sed work on hex/binary values in a file?

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• Problem with usb wireless mouse

  - by aiacet

  Recently I have started having problems with my wireless mouse (Wireless Optical Mouse MI-4910D). Sometimes when I start my PC or during a game the pointer/arrow stops moving. When the PC boots the pointer is locked in the center of the screen. If I'm lucky it helps to change the USB wireless adapter from port 1 to port 2 but sometimes this trick doesn't work and I have to restart my PC to get the mouse to work again. Like you can see in the product web page this mouse don't have a driver but only a tool to solve some problems. Thank you in advance to all the "super-users" that reading this question would be help me Ajax

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