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• SQL Server to manage ASP.NET sessions doesn't work

  - by windforceus

  I follow the direction in here How to configure SQL Server to manage ASP.NET sessions to create ASPState db. I have 2 web application in IIS 7. In IIS web application setting, i go to "Session State" and set session state as "SQL Server" and provide connection string. In each web application web.config, i add <sessionState mode="SQLServer" allowCustomSqlDatabase="false" sqlConnectionString="data source=server;user id=user;password=password" cookieless="false" timeout="7200" /> I create a session , Session["Data"] = "test" in Web App A and go to Web App B in the same browser to print it Response.Write(Session["Data"]); It shows NOTHING. I can see there are data in table : ASPStateTempApplications and ASPStateTempSessions under ASPState Database. Also, i dont see any error in event log. Can anyone think anything i may do wrong? Thanks!!

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• how do i use htaccess to make http requests work properly

  - by Gabriel

  I currently have css and javascript file calls (amongst other things) like the following: href="/css/default.css" src="/js/ui_control.js" putting the preceding / in to make the files relative to the root. This works great when my page is in the root of the domain. However, I'm currently in the middle of transferring my site to a new hosting provider and as such have a temporary URL which is: HOST-IP/~username As such, all file calls are trying to be called from HOST-IP/css/default.css etc instead of within the ~username sub-folder. Of course I can wait until the domain name servers propagate but that's beside the point. How would I go about writing a rule in the .htaccess file that would redirect all file calls that start with a /, from going to HOST-IP/FILE-CALL, and instead to go to HOST-IP/~USERNAME/FILE-CALL. ? Any ideas?

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• Rails Load Data into Application every time a New User is Created

  - by looloobs

  Hi I am trying to figure out the "right" way to do this. In my application every time I create a new user I want to have specific data loaded into an associated table. The associated table is a different preset lists. So a User has many lists and those lists have many items. Some of those Items I want to be loaded when the User is created. I really don't know how to go about doing this but I am guessing something like: create User after_create: create Lists (need already existing data for the list names) after_create List then populate Items table with existing data for these Lists. Should I be using seed data for this? Is that alright for production and if so how exactly would I go about doing that. Any guidance or other recommendations are greatly appreciated.

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• Rails architecture questions

  - by justinbach

  I'm building a Rails site that, among other things, allows users to build their own recipe repository. Recipes are entered either manually or via a link to another site (think epicurious, cooks.com, etc). I'm writing scripts that will scrape a recipe from these sites given a link from a user, and so far (legal issues notwithstanding) that part isn't giving me any trouble. However, I'm not sure where to put the code that I'm writing for these scraper scripts. My first thought was to put it in the recipes model, but it seems a bit too involved to go there; would a library or a helper be more appropriate? Also, as I mentioned, I'm building several different scrapers for different food websites. It seems to me that the elegant way to do this would be to define an interface (or abstract base class) that determines a set of methods for constructing a recipe object given a link, but I'm not sure what the best approach would be here, either. How might I build out these OO relationships, and where should the code go?

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• Where can I find the transaction protocol used by Automated Teller Machines?

  - by Dave

  I'm doing a grad-school software engineering project and I'm looking for the protocol that governs communications between ATMs and bank networks. I've been googling for quite a while now, and though I'm finding all sorts of interesting information about ATMs, I'm surprised to find that there seems to be no industry standard for high-level communications. I'm not talking about 3DES or low-level transmission protocols, but something along the lines of an Interface Control Document; something that governs the sequence of events for various transactions: verify credentials, withdrawal, check balance, etc. Any ideas? Does anything like this even exist? I can't believe that after all this time the banks and ATM manufacturers are still just making this up as they go. A shorter question: if I wanted to go into the ATM software manufacturing business, where would I start looking for standards?

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• Routing problem, handling differently online versus local - MVC.net 1.0

  - by VinnyG

  I have there lines in my RegisterToutes : routes.MapRoute("Pages3", "{url1}/{url2}/{url3}", MVC.Page.RedirectTo(), new { url1 = "", url2 = "", url3 = "" }); routes.MapRoute("Pages2", "{url1}/{url2}", MVC.Page.RedirectTo(), new { url1 = "", url2 = "", url3 = "" }); routes.MapRoute("Pages1", "{url1}", MVC.Page.RedirectTo(), new { url1 = "", url2 = "", url3 = "" }); On my local machine and on my demo server (demo.myserver.com/myproject/) it works great for handling the 404, but live(www.mysite.com) it just go to the IIS 404. I have a PageController witch go see if the page exist in the DB and if it don't I return to a 404 view with the status code 404 (Response.StatusCode = 404;) How can I reproduce the same behavior live? Do I need to setup something on IIS? I'm on winserver 2008 using c# and MVC 1.0. Thanks for the help!

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• Finding cities close to one another using longitude and latitude

  - by Jamie

  Each user in my db is associated to a city (with it's longitude and latitude) How would I go about finding out which cities are close to one another? i.e. in England, Cambridge is fairly close to London. So If I have a user who lives in Cambridge. Users close to them would be users living in close surrounding cities, such as London, Hertford etc. Any ideas how I could go about this? And also, how would I define what is close? i.e. in the UK close would be much closer than if it were in the US as the US is far more spread out. Ideas and suggestions. Also, do you know any services that provide this sort of functionality? Thanks

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• vSphere education - What are the downsides of configuring virtual machines with *too* much RAM?

  - by ewwhite

  VMware memory management seems to be a tricky balancing act. With cluster RAM, Resource Pools, VMware's management techniques (TPS, ballooning, host swapping), in-guest RAM utilization, swapping, reservations, shares and limits, there are a lot of variables. I'm in a situation where clients are using dedicated vSphere cluster resources. However, they are configuring the virtual machines as though they were on physical hardware. In turn, this means a standard VM build may have 4 vCPUs and 16GB or more of RAM. I come from the school of starting small (1 vCPU, minimal RAM), checking real-world use and adjusting up as necessary. Some examples from a "problem" cluster. Resource pool summary - Looks almost 4:1 overcommitted. Note the high amount of ballooned RAM. Resource allocation - The Worst Case Allocation column shows that these VMs would have access to less than 50% of their configured RAM under constrained conditions. The real-time memory utilization graph of the top VM in the listing above. 4 vCPU and 64GB RAM allocated. It averages under 9GB use. Summary of the same VM What are the downsides of overcommitting and overconfiguring resources (specifically RAM) in vSphere environments? Assuming that the VMs can run in less RAM, is it fair to say that there's overhead to configuring virtual machines with more RAM than they need? What is the counter-argument to: "if a VM has 16GB of RAM allocated, but only uses 4GB, what's the problem??"? E.g. do customers need to be educated? What specific metric should be used to meter RAM usage. Tracking the peaks of "Active" versus time?

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• Missing System.Core.dll and others on Visual Studio 2010 Project targeting 3.5 Framework

  - by Mark Struzinski

  I just got Visual Studio 2010 installed and running on my development machine (alongside VS 2008). The first thing I did was make a copy of an existing project and convert it up to the VS 2010 project. I told the conversion wizard to leave the project targeting the 3.5 framework. The project compiles and runs just fine in VS 2008. When I go to build it, several of my references are marked as missing (System.Core, System.Xml.Linq, System.Data.DataSetExtensions). When I go to the Add Reference dialog, they are not present. Yet if I view the GAC at C:\Windows\Assembly, I can see the entries there. I have tried converting the projects to 4.0, then back down to 3.5, and also unloading/reloading the projects. Nothing works. Has anyone else ran across this problem?

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• Restore history and current page on resuming webview

  - by qubit

  I have a webview that I use to navigate from page to page. I have implemented go back and go forward. My problem is that when I return to the webview after visiting another activity, the history is lost i.e. the webview starts again on the first page. How do I code it so that after I call finish on the webview to swap to another activity on returning to the webview, the WebBackForwardList is restored and I am taken to the page I was on when I left the webview? I have tried overriding onSaveInstanceState and onRestoreInstanceState using webview.save/restoreState(bundle) but with no success. I have achieved returning to the last page by saving the last url in preferences, but have been unable to restore the entire history.

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• Packet flooding while configuring a Debian L2TP/IPSec client?

  - by Joseph B.

  I'm currently at my wits end trying to configure an L2TP over IPSec VPN connection on my Debian using openswan and xl2tp box connecting to a server of unknown configuration. I've managed to successfully establish the connection and everything appears to be working well until I attempt to set the VPN connection as my default route, at which point I see a massive flood of packets simultaneously being transmitted (on the tune of ~1.5 GB in about 2min) until the server drops my connection. Prior to this network traffic on all my interfaces is minimal. According to iftop the majority of this traffic appears to be coming out of port 12, although I can't seem to figure out how to finger a specific process. If I instead just route traffic destined for 74.0.0.0/8 through it I'm able to access Google's servers through the VPN without issue. My xl2tp.conf file is: [lac vpn-nl] lns = example.vpn.com name = myusername pppoptfile = /etc/ppp/options.l2tpd.client My options.l2tpd.client file is: ipcp-accept-local ipcp-accept-remote refuse-eap require-mschap-v2 noccp noauth idle 1800 mtu 1410 mru 1410 usepeerdns lock name myusername password mypassword connect-delay 5000 And my routing table looks like: Destination Gateway Genmask Flags Metric Ref Use Iface 10.5.2.1 * 255.255.255.255 UH 0 0 0 ppp0 10.0.50.0 * 255.255.255.0 U 0 0 0 eth0 10.50.0.0 * 255.255.0.0 U 0 0 0 eth0 10.0.0.0 * 255.255.0.0 U 0 0 0 eth0 192.168.0.0 * 255.255.0.0 U 0 0 0 eth0 loopback * 255.0.0.0 U 0 0 0 lo default * 0.0.0.0 U 0 0 0 ppp0 I'm seeing absolutely nothing in auth.log and syslog during this time and can't seem to find any other log files it might be writing to. Any suggestions would be appreciated!

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• some examples for using specific searchalgorithm

  - by Robert

  I could understand the following search algorithms: Constraint Satisfaction with Arc Consistency, Uninformed search A* Search MinMax I would understand the definition and working principles of the above algorithm,but could you please give me some real world examples that the above algorithms will be suitable?My idea would be: For CSP with Arc Consistency,assign students to groups that each group must contain both technical and management students,and no 2 technical students in a same group. Uniformed Search: search for a file under UNIX directoy. A* Search: search a way (staring from home) to go to mulitple stores to buy things then get back home with minimum total travelling time. MinMax:Go or other Chess. Please correct me if I am wrong.

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• Temporary files & folders on Windows

  - by GRIGORE-TURBODISEL

  Emulating multithreading by loading a DLL multiple times (it's designed for this). Since LoadLibrary() doesn't really allow it, the DLL copies itself into a temporary file, via GetTempPath() and GetTempFileName(). It's a small file and upon thread destruction it frees the library and deletes the temporary file. Problem now is that the number of threads is configurable (maniacs can pick 50, 100, more) which basically exposes the risk of running unstable, crash and not go through the usual "delete temporary files" routine. Is it okay if I just leave those temporary files to die there? Does the OS usually clean the up by itself? Or should I write an autocleanup routine? If yes, how can I go about saving another temporary file to hold a list with those files, and not hit UAC restrictions or otherwise? Any ideas?

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• Query for Joining Two Tables With Possible Multiple Mapping

  - by Dharmendra Mohapatra

  First_table srno wono Actual_Start_Date Actual_End_Date 1 31 2012-06-02 2012-06-05 2 32 2012-06-05 2012-06-22 3 33 2012-06-11 2012-06-23 4 34 2012-06-23 2012-06-30 5 A-2 2012-06-24 2012-06-25 6 BU 2012-06-24 2012-06-26 7 40 2012-06-25 2012-06-27 second_table srno wono Base_start_date Base_end_date uploadhistoryid 1 31 2012-06-05 2012-06-05 1 2 32 2012-06-11 2012-06-12 2 3 32 2012-06-15 2012-06-17 3 4 32 2012-06-18 2012-06-20 4 5 33 2012-06-22 2012-06-25 5 5 33 2012-06-23 2012-06-25 5 Result Required SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[Reports_Subanalysis] ( @WONo VARCHAR(20) ) AS BEGIN SELECT 'SAT' AS stage, s.Base_start_date AS start_date, s.Base_end_date AS end_date, f.Actual_Start_Date AS Actual_Start_Date, f.Actual_end_Date AS Actual_End_Date FROM First_table f, second_table B WHERE A.wOno=B.nOno AND f.uploadhistoryid in (SELECT min(uploadhistoryid) FROM second_table C WHERE f.wono = C.wono) AND b.wono=@WONo END when I pass '32' Result stage start_date end_date Actual_Start_Date Actual_End_Date SAT 2012-06-11 2012-06-12 2012-06-05 2012-06-05 how Can I get the result like this when I pass non matching value like 'BU' stage start_date end_date Actual_Start_Date Actual_End_Date SAT NULL NULL 2012-06-24 2012-06-26 What modification do I need in my routine?

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• Why TortoiseHg not show the "merge conflict"?

  - by Jian Lin

  Short version of the question: Since I already have TortoiseHg, I right clicked on that file trying to see the merge conflict visually, but there is no way to see it? Details: To make a simple case of merge conflict, I hg init a repo on Win 7, and then clone it to another folder. Now, in one working directory, i added the line "the code is 123", committed. And in the other folder, i did an "hg pull" and "hg update" Now, I go back to the first folder, and change "123" to "123abc", and then do an "hg commit" And then I go to the other folder and edit "123" to "123xyz" over there, and do an "hg commit", and when "hg push", it says it can't. So I try to use any visual tool to see how the conflict is like, but ... TortoiseHg doesn't seem to have any option to do that?

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• Vim: Replacing a line with another one yanked before

  - by duddle

  At least once per day i have the following situation: A: This line should also replace line X ... X: This is line should be replaced I believe that I don't perform that task efficiently. What I do: Go to line A: AG Yank line A: yy Go to line X: XG Paste line A: P Move to old line: j Delete old line: dd This has the additional disadvantage that line X is now in the default register, which is annoying if I find another line that should be replaced with A. Yanking to and pasting from an additional register ("ayy, "aP) makes this simple task even less efficient. My Questions: Did I miss a built-in Vim command to replace a line yanked before? If not, how can I bind my own command that leaves (or restores) the yanked line in the default register?

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• custom flex component, visual controls in design view

  - by bo

  Do you know how if you drag an <mx:Label> or <s:Label> component into your Flex project, when you go to design mode you get this panel on the right to set its properties like text etc. I have a custom component that I can call with actionscript, or with mxml like this: <comps:TheComp field1="OK" field2="Yes" /> The component takes this input and uses it for its internal operation private var field1:String; private var field2:String; private function initializeit() { // component takes the input and lays it out as needed } When I go to design mode, I can see the component under custom components, I can drag it to the stage and see it, but can't set its values field1 and field visually on the right like a normal <s:Label> or <mx:Label> would have. Any idea how I can add that? Do I need to make it inherit something or anything else

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• MySQL Simple query gives "Query was empty". Transaction help needed I think.

  - by user129609

  Hi, I'm trying to do a simple transaction in MySQL delimiter go start transaction; BEGIN DECLARE EXIT HANDLER FOR SQLEXCEPTION, SQLWARNING, NOT FOUND ROLLBACK; INSERT INTO jext_categories (Name) VALUES ('asdfas'); INSERT INTO jext_categories (Name) VALUES ('asdfas2'); END; commit; SELECT * FROM jext_categories; go delimiter ; but I keep getting an error saying query was empty. Could someone please tell me what I am doing wrong, and also, what is the proper format for doing a transaction in MySQL? Thanks!

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• What are the typical methods used to scale up/out email storage servers?

  - by nareshov

  Hi, What I've tried: I have two email storage architectures. Old and new. Old: courier-imapds on several (18+) 1TB-storage servers. If one of them show signs of running out of disk space, we migrate a few email accounts to another server. the servers don't have replicas. no backups either. New: dovecot2 on a single huge server with 16TB (SATA) storage and a few SSDs we store fresh mails on the SSDs and run a doveadm purge to move mails older than a day to the SATA disks there is an identical server which has a max-15min-old rsync backup from the primary server higher-ups/management wanted to pack in as much storage as possible per server in order to minimise the cost of SSDs per server the rsync'ing is done because GlusterFS wasn't replicating well under that high small/random-IO. scaling out was expected to be done with provisioning another pair of such huge servers on facing disk-crunch issues like in the old architecture, manual moving of email accounts would be done. Concerns/doubts: I'm not convinced with the synchronously-replicated filesystem idea works well for heavy random/small-IO. GlusterFS isn't working for us yet, I'm not sure if there's another filesystem out there for this use case. The idea was to keep identical pairs and use DNS round-robin for email delivery and IMAP/POP3 access. And if one the servers went down for whatever reasons (planned/unplanned), we'd move the IP to the other server in the pair. In filesystems like Lustre, I get the advantage of a single namespace whereby I do not have to worry about manually migrating accounts around and updating MAILHOME paths and other metadata/data. Questions: What are the typical methods used to scale up/out with the traditional software (courier-imapd / dovecot)? Do traditional software that store on a locally mounted filesystem pose a roadblock to scale out with minimal "problems"? Does one have to re-write (parts of) these to work with an object-storage of some sort - such as OpenStack object storage?

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• In MS Access is there a way to allow forms to update while maintaning Read Only

  - by Alex

  I have several forms linked tables via queries. The form pull data such as sales and ratios by selecting a product from the main's form's combo box. I am however having to issues: 1- I would ultimately prefer the combo box to be a free entry; however by just entering in the box and hitting enter (not a button called “enter on a screen” which would initiate recalcs, just normal enter), while it does bring the new information in sub-forms it also changes the information in the original table. If I make the table read only that it just doesn't allow the form to work by saying that the table is read only. 2- The same Read only issue occurs when another user with read only rights tries to use the database. I understand that ready only is functioning as intended, however I am wondering if there is way to make some functions work while disallowing the updating. I am unfortunately learning on the go, so go easy plz. Thank you

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• errorerror C2059: syntax error : ']', i cant figure out why this coming up in c++

  - by user320950

  void display_totals(); int exam1[100][3];// array that can hold 100 numbers for 1st column int exam2[100][3];// array that can hold 100 numbers for 2nd column int exam3[100][3];// array that can hold 100 numbers for 3rd column int main() { int go,go2,go3; go=read_file_in_array; go2= calculate_total(exam1[],exam2[],exam3[]); go3=display_totals; cout << go,go2,go3; return 0; } void display_totals() { int grade_total; grade_total=calculate_total(exam1[],exam2[],exam3[]); } int calculate_total(int exam1[],int exam2[],int exam3[]) { int calc_tot,above90=0, above80=0, above70=0, above60=0,i,j; calc_tot=read_file_in_array(exam[100][3]); exam1[][]=exam[100][3]; exam2[][]=exam[100][3]; exam3[][]=exam[100][3]; for(i=0;i<100;i++); { if(exam1[i] <=90 && exam1[i] >=100) { above90++; cout << above90; } } return exam1[i],exam2[i],exam3[i]; } int read_file_in_array(int exam[100][3]) { ifstream infile; int num, i=0,j=0; infile.open("grades.txt");// file containing numbers in 3 columns if(infile.fail()) // checks to see if file opended { cout << "error" << endl; } while(!infile.eof()) // reads file to end of line { for(i=0;i<100;i++); // array numbers less than 100 { for(j=0;j<3;j++); // while reading get 1st array or element infile >> exam[i][j]; cout << exam[i][j] << endl; } } infile.close(); return exam[i][j]; }

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• Cookie is setting twice (dublicated)

  - by Erik Larsson

  I'm new to cookies, and im trying to set a cookie where to store the referer (the org ref). But when i try this function: function do_it_cookie() { // Check if cookie exists if (isset($_COOKIE['ref'])) { // It dose exist, do nothing or anything... } else { setcookie ('ref', $_SERVER['HTTP_REFERER'], time() + 60, '/'); header ("Location: http://www.nyttforetag.com/mind-your-own-business/"); } } I want to store the cookie on the user computer for 30 days, if the return i want to know the initial refereeing url. But when i use this and lets say i go to another page in my site and then go back to the homepage its sets a new cookie with the exact same name and with the ref of the previous page. Is there away to avoid this?

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• Cookie is setting twice (duplicated)

  - by Erik Larsson

  I'm new to cookies, and im trying to set a cookie where to store the referrer (the org ref). But when i try this function: function do_it_cookie() { // Check if cookie exists if (isset($_COOKIE['ref'])) { // It dose exist, do nothing or anything... } else { setcookie ('ref', $_SERVER['HTTP_REFERER'], time() + 60, '/'); header ("Location: http://www.nyttforetag.com/mind-your-own-business/"); } } I want to store the cookie on the user computer for 30 days, if the return i want to know the initial refereeing url. But when i use this and lets say i go to another page in my site and then go back to the homepage its sets a new cookie with the exact same name and with the ref of the previous page. Is there away to avoid this?

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• Is it me or is developing web based data entry GUIs a big pain?

  - by GregH

  Maybe it's me or maybe it isn't. I don't have a huge amount of experience of developing web based data entry software but do have some. I used to do it quite a bit years ago. Used to use Oracle Forms, Visual Studio, various 4th generation languages, and performing the user interface layout used to be a snap. Now doing the user interface for developing web applications seems to be a huge pain in the rear. Just trying to get text entry fields and widgets to go where they are supposed to go on the screen is a total pain. You have to know Javascript, CSS, JQuery, HTML, etc. There must be an easier way to develop data entry forms that produce the needed underlying code for a web page. Maybe I'm just not looking in the right place. There must be some WYSIWYG GUI development tools for the web for developing data entry forms out there. Anybody know of any?

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• NSDirectoryEnumerator And Subfolders

  - by Matthew Roberts

  I have an iPhone app that searches a folder, collates an an array of all the audio files, and lets them be played back. The problem is that if there is a subfolder within the folder I am searching, it will just skip over it/not go into its contents. My code is as follows: NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSDirectoryEnumerator *direnum = [[NSFileManager defaultManager] enumeratorAtPath:documentsDirectory]; NSString *pname; while (pname = [direnum nextObject]) { [musicArray addObject:[pname stringByDeletingPathExtension]]; } What I want to do is continue to search its subfolders, how would I go about doing that?

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