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• JavaOne Technology Conference Is Coming to Russia

  - by Tori Wieldt

  JavaOne Russia 17-18 AprilRussian Academy of Sciences, MoscowRegister Now JavaOne and Oracle Develop 2012 Russia offers a wide variety of sessions, hands-on labs, keynotes, demos, and the opportunity to network with developer peers. If you’re looking for in-depth sessions on Java technologies and tools, this is the conference for you. Your registration also gets you into Oracle Develop sessions as well, so you can learn about application servers, cloud development and, of course, database development. The JavaOne Russia tracks are:Client-Side Technologies and Rich User ExperiencesLearn about developments in Java for the desktop and practices for building rich, immersive, and powerful user experiences across multiple hardware platforms and form factors. Core Java PlatformDiscover the latest innovations in Java virtual machines. Get deep technical explanations in security and networking and enhancements that allow dynamic programming languages to drive Java platform adoption. Java EE Web Profile, Platform Technologies, Web Services, and the Cloud Update your knowledge on topics such as Web application development, persistence, security, and transactions. This track will also address modularity, enterprise caching, Web sockets, and internet identity. Mobile, Java Card, Embedded, and DevicesThis track is devoted to Java technology as the ultimate platform for mobile computing. It also covers embedded and device usages of Java technologies, including Java SE, Java ME, Java Card, and JavaFX. Share this event: #oracleRU

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• Pivot Table from data with merged cells

  - by Graeme

  I have a energy spreadsheet for multiple sites. the first row has month and year. the next row has columns for date invoice received, KW hours and cost. So there are three columns for each month. I have merged the month cell across the three columns. When i create a pivot table the date kw/h and costs are labled date1, date2, etc. Can I link the months headings to the subheadings to get meaningful headings in the pivot table????

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• Generating HTML Help files based on XML documentation

  - by geekrutherford

  Since discovering the XML commenting features built into .NET years ago I have been using it to help make my code more readable and simpler for other developers to understand exactly what the code is doing. Entering /// preceding a line of code causes Visual Studio to insert "summary" tags.  It also results in additional tags being generated if you are commenting a method with parameters and a return type. I already knew that Intellisense would pick up these comments and display them when coding and selecting properties, methods, etc. from a class.  I also knew that you could set Visual Studio to generate an XML file containing said comments.  Only recently did I begin to wonder if I could generate some kind of readable help files based on these comments I so diligently added. After searching the web I came across NDoc, an open source project which creates documentation for you based on the XML files generated by Visual Studio.  Unfortunately, NDoc has become stale and no longer supported (last release was back in 2005). Fortunately there is a little known tool from Microsoft themselves called "Sandcastle Help File Builder".  This nifty little tool gives you a graphical interface that allows you to specify multiple DLL and XML files from which to generate a MSDN like HTML Help File for your own projects! You can check it out here: http://shfb.codeplex.com/ If you are curious how to set Visual Studio to generate the above reference XML documentation files simply go to your projects property page and edit as shown below (my paths are specific, you can leave yours at the default values):

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• Where did the notion of "one return only" come from?

  - by FredOverflow

  I often talk to Java programmers who say "Don't put multiple return statements in the same method." When I ask them to tell me the reasons why, all I get is "The coding standard says so." or "It's confusing." When they show me solutions with a single return statement, the code looks uglier to me. For example: if (blablabla) return 42; else return 97; "This is ugly, you have to use a local variable!" int result; if (blablabla) result = 42; else result = 97; return result; How does this 50% code bloat make the program any easier to understand? Personally, I find it harder, because the state space has just increased by another variable that could easily have been prevented. Of course, normally I would just write: return (blablabla) ? 42 : 97; But the conditional operator gets even less love among Java programmers. "It's incomprehensible!" Where did this notion of "one return only" come from, and why do people adhere to it rigidly?

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• Is (Ubuntu) Linux file copying algorithm better than Windows 7?

  - by Sarath

  Windows Copying is a real mess ever since Windows Vista. Even Microsoft claims they've improved the performance, from a user perspective, it's not quite visible. Even with single file the copying window appears too much time for 'Calculating' and then finishing the copy(Even after 100% completion some times the dialog remains active). At the same time, I was backing up some files in Ubuntu Linux. I felt it's really fast. Might be a feeling caused by faster UI updates. I read an informative post from Jeff Atwood few years back on Windows File Copying. but what my specific questions are Is (Ubuntu) Linux file performance is better than Windows-7? Are both algorithms, Windows and Linux is making use of multiple threads and pipelining mechanism to improve the speed? If yes, which one is better?

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• Windows Boot disc to save files?

  - by acidzombie24

  Somehow after updating my legit windows 7 OS with no pirated or mod software on my PC i was welcome to a black screen. I popped in my ghost disc and copied the files i need to an external HD. IIRC windows 7 disc can do that too. Problem with the way i did it on ghost was it excepted me to select 1 file (an HD disc image) so i couldnt select multiple folders to move. Also when i did move i had no idea if it finished or how long it would take. My linux live cd couldnt access the HD. Anyways, is there a disc i can use to easily copy files from my laptop to my external HD? I think ghost, windows 7 and windows server all allow me but is there one that is better suited to copy files?

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• How to keep the trunk stable when tests take a long time?

  - by Oak

  We have three sets of test suites: A "small" suite, taking only a couple of hours to run A "medium" suite that takes multiple hours, usually ran every night (nightly) A "large" suite that takes a week+ to run We also have a bunch of shorter test suites, but I'm not focusing on them here. The current methodology is to run the small suite before each commit to the trunk. Then, the medium suite runs every night, and if in the morning it turned out it failed, we try to isolate which of yesterday's commits was to blame, rollback that commit and retry the tests. A similar process, only at a weekly instead of nightly frequency, is done for the large suite. Unfortunately, the medium suite does fail pretty frequently. That means that the trunk is often unstable, which is extremely annoying when you want to make modifications and test them. It's annoying because when I check out from the trunk, I cannot know for certain it's stable, and if a test fails I cannot know for certain if it's my fault or not. My question is, is there some known methodology for handling these kinds of situations in a way which will leave the trunk always in top shape? e.g. "commit into a special precommit branch which will then periodically update the trunk every time the nightly passes". And does it matter if it's a centralized source control system like SVN or a distributed one like git? By the way I am a junior developer with a limited ability to change things, I'm just trying to understand if there's a way to handle this pain I am experiencing.

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• What term is used to describe running frequent batch jobs to emulate near real time

  - by Steven Tolkin

  Suppose users of application A want to see the data updated by application B as frequently as possible. Unfortunately app A or app B cannot use message queues, and they cannot share a database. So app B writes a file, and a batch job periodically checks to see if the file is there, and if load loads it into app A. Is there a name for this concept? A very explicit and geeky description: "running very frequent batch jobs in a tight loop to emulate near real time". This concept is similar to "polling". However polling has the connotation of being very frequent, multiple times per second, whereas the most often you would run a batch job would be every few minutes. A related question -- what is the tightest loop that is reasonable. Is it 1 minute of 5 minutes or ...? Recall that the batch jobs are started by a batch job scheduler (e.g. Autosys, Control M, CA ESP, Spring Batch etc.) and so running a job too frequently would causes overhead and clutter.

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• How to change color of a cell in one sheet if its value increases or decreases from another cell value in a different sheet

  - by Sean Coffey

  I am putting together a workbook with 52 sheets for the weeks in the year. In this workbook there are multiple columns for percentages on each sheet. I want to be able to change the color of each cell based on whethernit increases (green) or decreases (red) from the same cell in the previous sheet. I have the formula i.e. =IF(ISERROR(B4/D4),"0", B4/D4) to calculate my percentages but I don't know how to put the reference in for this change. Any help?

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• Setting up IIS7 to mimic a GoDaddy shared hosting plan

  - by NerdFury

  I host multiple domains on a GoDaddy shared hosting account. I would like to setup a website locally in IIS 7 that mimics the setup of my hosted account so that I can test and debug applications locally before deploying, as debugging after deploying, or discovering there are issues after deploying is frustrating. I have created a folder WebRoot, at put my main application in that folder. I created a website in IIS 7 and pointed it at that folder. I setup bindings with a fake domain, and created a matching entry in my hosts file to make the fake domain point at my 127.0.0.1. I then created a folder www.otherdomain.com under webroot. I then created an application underneath my website, and pointed it at this folder. I can't find how I can add bindings to the web application to have it referenced as a different fake domain, rather than a subdirectory under my root domain. What would be the proper way to setup IIS to best simulate the environment on the GoDaddy servers.

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• Ubuntu/Linux version recommendation for HP dv6 3122TX?

  - by sanjayav

  I purchased a HP dv6 3122TX recently and after installing Ubuntu 10.10 64 bit I ran into multiple issues like, The wireless driver is not supported by Uubntu. (1) [The driver is RaLink RT3090 ] The ethernet stopped working sometimes for no reason [The driver is Realtek RTL8111/8168B ] "Corrupted low memory at ..." issue which is described as a kernel bug in Ubuntu support forums. (It started to take me to a terminal instead of the GUI and couldn't start x server after that) As I'm not an expert Ubuntu user I got fed up of all these issue and got back to Windows 7. But I need an Ubuntu installation up and running for my development work. What are your suggestions about a reasonable Ubuntu version that I should try? Or a different Linux variation? Should I stick to a 32-bit version? It'd be great anyone can give some advice on this issue.

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• How do I recover an accidentaly closed Opera window?

  - by Kostas

  Hello there and thanks for all the help! I accidentaly closed a window with multiple tabs in Opera. There was another window with a couple of tabs running. I have closed and restarted Opera in the hope it will retrieve the windows at startup (it usually asks if I want to continue from last time). Is there a way I can retrieve my closed window with all the tabs? I cannot see them in the history either, probably because When I switched-on my PC the Internet connection was down and the pages didn't load :-/

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• Exchange 2007 mailbox reassignment

  - by John Virgolino

  I am trying to move a mailbox from one user account to another within a single AD domain. We are using Exchange 2007. I have followed these steps: Disable the account From "Disconnected Mailbox" container, connect to the new account I get a success message When I try to login to OWA using the new user account, I get this message: Outlook Web Access could not connect to Microsoft Exchange. If the problem continues, contact technical support for your organization. Request Url: https://mail.somedomain.com:443/owa/default.aspx User host address: 1.2.3.4 Exception Exception type: Microsoft.Exchange.Data.Storage.ConnectionFailedTransientException Exception message: Cannot open mailbox /o=cgsexchangeorganization/ou=exchange administrative group (fydibohf23spdlt)/cn=recipients/cn=someuser. NOTE: I changed some identifying information for security purposes. I have tried multiple times and get to the same place. When I login to OWA with old account, I get an error that the mailbox cannot be found, which makes total sense. Does anybody have any ideas on this? Thanks!

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• LiveCD/USB boot issues with Ubuntu 12.04 on blank drive

  - by Richek

  Not sure how common this issue is, or even how badly I may be missing something simple, but I am a first time usuer having some serious problems. Some background: old HDD running Windows 7 developed too many bad sectors and is bricked. I'm attempting to install Ubuntu 12.04 on a fresh 1TB drive by booting from a liveCD USB flash drive. I've not been able to get past the initial menu screen, however, as the process stalls out shortly after selecting an option (both boot from drive and install to drive). I've tried multiple USB drives as well as CDs, modified the boot order, flashed BIOS, and even tried booting with only the flash drive and the keyboard connected with the same results.Typically what I observe is that the OS begins what I think is compliling, listing drivers and components before freezing on one. When the keyboard is plugged in, its the keyboard driver, before I flashed BIOS, it was a BIOS related item, now its an unknown entry. The computer seems to be reading the drive (idicated by USB light flashing or CD drive reving) for roughly 10 minutes with no progress, followed by the drives going quiet. Some spec info: Motherboard: ASUS P5Q Pro, BIOS version 2102 (latest version), Intel chipset CPU: Intel Core 2 Duo E8400 Wolfdale 3.0GHz help would be appriciated!

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• Preferred apache permissions for www files with several authors

  - by user1316464

  I can't for the life of me figure out how to design my permissions scheme for my apache files. My requirements seem pretty simple: Apache should have standard permissions of RX for Directories and R for files Web authors should have RWX for Directories and RW for files Don't want to give any access to "other" Want new files/folders to inherit the proper permissions Here are the schemes I've tried 570 for directories and 460 for files Owner: Apache Group: Webdev The problem here is that new files created by users int the Webdev group are owned by user:Webdev and Apache can't read them. If Apache were in the group Webdev then it would also have the wrong permissions (ie it would have Write permissions to files) 750 for directories and 640 for files Owner: Webdev Group: Apache (Webdev is a member of Apache) The problem here is that there is only one webdev account and I have multiple people who need access to contribute. In theory this would work with only one developer if Webdev were also a member of the Apache group. Any ideas?

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• Restoring backup with Deja Dup from external HD

  - by widgg

  So, here's the problem that I have with restoring. First, I backed up like everything. So I had place on the external HD for only one copy. I had to reinstall everything, but I didn't worry because I had a backup. But now, restoring doesn't work and it starts to be annoying. So, I right click "Restore missing files...". Then I have the popup window from Deja Dup asking where is the backup. So, I select the external HD and either put nothing in "folder" or just put ".". Thinking that it should be the base to look for backups. In both cases, after a while scanning, I get: The Volume "Filesystem root" has only 139.7mb disk space remaining. But my partition "/home" has 799.6Gb free. Also, I just want to restore some files, I don't need all of them. On my external HD, there's a file called: duplicity-full.20120514T220834Z.manifest. A text file. In it, I can see that everything is partitions in files of 52mb. So, small files are in one archive while very large files are split in multiple one. But I can see the exact list of file that I have. So, I'm guessing that my backup is intact. What am I doing wrong ? Is possible that it failes, even to list all the files, because I don't have enough space left on my ExtHD ? Why can't duplicity used another location to do that ?

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• Free Webinar: A faster, cheaper, better IT Department with Azure

  - by Herve Roggero

  Join me for a free Webinar on Wednesday October 17th at 1:30PM, Eastern Time. I will discuss the benefits of cloud computing with the Azure platform. There isn’t a company out there that would say “No” to reduced IT costs and unlimited scaling bandwidth. This webinar will focus on the specific benefits of the Microsoft Azure cloud platform and will convince you on the sound business rationale behind moving to the cloud. From Infrastructure as a Service (Iaas) to Platform as a Service (Paas), Azure supports quick deployments, virtual machines, native SQL Databases and much more. Topics that will be discussed: - Why use Azure for your Cloud Computing needs - Iaas and Paas Offerings - Differing project approaches to Cloud computing - How Azure’s agility and reduced costs lead to better solutions Attendees of this webinar will also be eligible to receive the following: Free Two Hour Consultation which can include: - Review of Your Cloud Strategy - Cloud Roadmap Review - Review of Data-mart strategies - Review of Mobility Strategies Click Here to Register Now. About Herve Roggero Hervé Roggero, Azure MVP, is the founder of Blue Syntax Consulting, a company specialized in cloud computing products and services. Hervé's experience includes software development, architecture, database administration and senior management with both global corporations and startup companies. Hervé holds multiple certifications, including an MCDBA, MCSE, MCSD. He also holds a Master's degree in Business Administration from Indiana University. Hervé is the co-author of "PRO SQL Azure" from Apress. For more information, visit www.bluesyntax.net.

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• About the new Microsoft Innovation Center (MIC) in Miami

  - by Herve Roggero

  Originally posted on: http://geekswithblogs.net/hroggero/archive/2014/08/21/about-the-new-microsoft-innovation-center-mic-in-miami.aspxLast night I attended a meeting at the new MIC in Miami, run by Blain Barton (@blainbar), Sr IT Pro Evangelist at Microsoft. The meeting was well attended and is meant to be run as a user group format in a casual setting. Many of the local Microsoft MVPs and group leaders were in attendance as well, which allows technical folks to connect with community leaders in the area. If you live in South Florida, I highly recommend to look out for future meetings at the MIC; most meetings will be about the Microsoft Azure platform, either IT Pro or Dev topics. For more information on the MIC, check out this announcement:  http://www.microsoft.com/en-us/news/press/2014/may14/05-02miamiinnovationpr.aspx. About Herve Roggero Herve Roggero, Microsoft Azure MVP, @hroggero, is the founder of Blue Syntax Consulting (http://www.bluesyntaxconsulting.com). Herve's experience includes software development, architecture, database administration and senior management with both global corporations and startup companies. Herve holds multiple certifications, including an MCDBA, MCSE, MCSD. He also holds a Master's degree in Business Administration from Indiana University. Herve is the co-author of "PRO SQL Azure" and “PRO SQL Server 2012 Practices” from Apress, a PluralSight author, and runs the Azure Florida Association.

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• Oracle Buys BigMachines - Adds Leading Configure, Price and Quote (CPQ) Cloud to the Oracle Cloud to Enable Smarter Selling

  - by Richard Lefebvre

  News Facts Oracle today announced that it has entered into an agreement to acquire BigMachines, a leading cloud-based Configure, Price and Quote (CPQ) solution provider. BigMachines’ CPQ Cloud accelerates the conversion of sales opportunities into revenue by automating the sales order process with guided selling, dynamic pricing, and an easy-to-use workflow approval process, accessible anywhere, on any device. Companies that use sales automation technology often rely on manual, cumbersome and disconnected processes to convert opportunities into orders. This creates errors, adds costs, delays revenue, and degrades the customer experience. BigMachines’ CPQ cloud extends sales automation to include the creation of an optimal quote, which enables sales personnel to easily configure and price complex products, select the best options, promotions and deal terms, and include up sell and renewals, all using automated workflows. In combination with Oracle’s enterprise-grade cloud solutions, including Marketing, Sales, Social, Commerce and Service Clouds, Oracle and BigMachines will create an end-to-end smarter selling cloud solution so sales personnel are more productive, customers are more satisfied, and companies grow revenue faster. More information on this announcement can be found at http://www.oracle.com/bigmachines Supporting Quotes “The fundamental goals of smarter selling are to provide sales teams with the information, access, and insights they need to maximize revenue opportunities and execute on all phases of the sales cycle,” said Thomas Kurian, Executive Vice President, Oracle Development. “By adding BigMachines’ CPQ Cloud to the Oracle Cloud, companies will be able to drive more revenue and increase customer satisfaction with a seamlessly integrated process across marketing and sales, pricing and quoting, and fulfillment and service.” “BigMachines has developed leading CPQ solutions that serve companies of all sizes across multiple industries,” said David Bonnette, BigMachines’ CEO. “Together with Oracle, we expect to provide a complete cloud solution to manage sales processes and deliver exceptional customer experiences.” Supporting Resources About Oracle and BigMachines General Presentation Customer and Partner Letter FAQ

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• XNA - Obtaining depth from the scene's render target?

  - by user1423893

  I'm currently rendering my scene to a render target so it can be used for rendering methods such as post processing and order independent transparency. rtScene = new RenderTarget2D( GraphicsDevice, GraphicsDevice.PresentationParameters.BackBufferWidth, GraphicsDevice.PresentationParameters.BackBufferHeight, false, SurfaceFormat.Rgba64, DepthFormat.Depth24Stencil8, // Requires a depth format for objects to be drawn correctly (e.g. wireframe model surrounding model) 0, RenderTargetUsage.PreserveContents ); I am required to use RenderTargetUsage.PreserveContents so that the same render target can be rendered to multiple times, once for each of the draw methods below. DrawBackground DrawDeferred DrawForward DrawTransparent The problem is that DrawTransparent requires a copy of the scene's depth as a texture. Is there any way to obtain this from the scene render target above (rtScene)? I can't have more than one render target with RenderTargetUsage.PreserveContents as this causes problems on hardware such as the XBOX 360, so rendering the depth to a separate render target at the same time as I render the scene isn't possible as far as I can tell. Would I be able to get around this problem by "Ping-Ponging" two render targets (using the more compatible RenderTargetUsage.DiscardContents) and using the result for the depth texture?

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• Recommendations: Good Network MFP Printer/Scanner

  - by Joeme

  Hi, We have a small office that is expanding. At the moment we have 1x HP J6424 MFP, shared using it's built in network port. It is now becoming a headache, we have daily problems with people not being able to print or scan, and jobs just sitting in the queue. Or the scanner not being detected. Sometimes people can print but not scan, sometimes scan but not print, sometimes a bit of both. We are also pretty much constantly printing or scanning, or trying to! I would like to get a laser MFP (mono is fine) which works well for scanning a printing over the network with multiple users. Althernativly any recommendations for network scanners (sheet feed and or duplex a bonus). Clients are Windows 7 and Mac. Thanks very much!

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• Sharing git repo without SSH

  - by user13323

  Hi. I'm trying to set-up a private git repo for code sharing, but found out that most of the implementations out there require use of SSH public keys, for example: http://www.jedi.be/blog/2009/05/06/8-ways-to-share-your-git-repository/ The only approach looking reasonable is the git-daemon, but it does not contain any authentication, and while it might be a good option for LAN, it is no go for remote working. Coming from SVN daemon, where all the access was conveniently controlled via single file, the SSH keys scheme quite a hurdle for me. Is there any way to securely share multiple Git repositories, without using SSH authentication? Thanks in advance!

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• Do Chrome and Firefox share a browser cache?

  - by Davy8

  So I was having a problem with some stuff on SO not working that was similar to this post on Meta which recommended clearing the browser cache. Now it wasn't working in both Chrome and Firefox and I had never logged in to SO on FF before today so FF couldn't have cached the file itself. Tried hitting refresh multiple times and even tried Ctrl-F5 with no luck. I cleared the browser cache in Chrome only, and after that it started working on both Chrome and FF. How could clearing the cache of one browser affect the other?

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• Running a command line app with sudo and password automatically on OS X startup

  - by Designer023

  I need to run an app at startup/login on my mac. I want it to launch in the background and start doing it's work without interrupting me or me having to start it up because I invariably forget and then when I need it, it wasn't running! I have tried using AppleScript to tell Terminal to run it and type my password in, but it ends up opening multiple Terminal windows and not working. Ideally I need a script that I can just add to the user login items and it will run for me. The app has no way of taking a password argument either and it has a password as well as the sudo! I need a solution that can either be done as an applescript (which can be made into an executable) or i need a commandline script but I have no idea about them. This is the manual code I type $ sudo serverStatus password:123456 password:serverpass My AppleScript: tell application Terminal activate do shell script "sudo serverStatus" delay 5 do shell script "123456" delay 2 do shell script "serverpass" end tell

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• Common filesystem for servers behind a rackspace load balancer

  - by thanos panousis

  Our PHP application consists of a single web server that will receive files from clients and perform a CPU-intensive analysis on them. Right now, analysis of a single user upload can take 3sec to conclude and take 100% CPU. This makes our system capacity amount to 1/3 requests per second. My team's requirement is to increase capacity without a lot of code reengineering. A possible solution would be to set up a load balancer in front of multiple servers running the same app, connecting to a common DB. The problem is that the analysis outputs files on disk. A load balancer would increase capacity, but then files won't be available between servers so consequent client requests may fail. We are hosted on Rackspace, is there a way to configure some sort of "common" storage for all servers, without having to rewrite our file persistance code? Current code relies on simple fopens etc. What are our options?

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