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  • Timeout with GAE Java

    - by user242153
    Hi, I am having some issues with an app I have deployed on GAE. Specifically, I am intermittently running into the DeadlineExceededException where the server is not responding within the 30 seconds required. What is odd is that the code is not overly complex, it should run in milliseconds. My guess is that the delay is in dealing with the persistence manager and accessing the datastore. 2 questions: 1) What is the best way to track where all of the CPU time on the server is being used up? Log files do not seem helpful and to make things more complicated the code runs very fast when I am running it locally 2) Any tips / best practices in dealing with the 30 second exception? What are the biggest drivers of this? Datastore? HTTP requests / responses? Thanks

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  • Combine Windows 8 app and settings search?

    - by askvictor
    While I've adapted to most things in windows 8 quite easily, I miss the 'combined' search feature of win 7 where pressing Win then typing would bring up all of the applications, settings and files (not that I ever really used the files part). Now, if I want to search settings I press win, start typing, then have to press the down arrow twice, then enter, then find the setting I want (I know I could press win-w, but that's just another thing to remember). Is there any way to bring back the 'unified search'?

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  • Using ModalAlert from cookbook - app does not load

    - by user127091
    I'm using iphone cookbook code to prompt a user for text in a UIAlertView. The cookbook code is available at http://github.com/erica/iphone-3.0-cookbook-/tree/master/C10-Alerts/03-Soliciting%20Text/ In my AppDelegate, applicationDidFinishLaunching(), I invoke as below NSString *str = [ModalAlert ask:@"what is your name?" withTextPrompt:@"ATTUID"]; But my app does not finish loading at all. I get a black screen indefinitely. There are no messages in the console. I tried creating just a UIAlertView with UITextField in the above function and it displays properly. (commenting out her code) Commenting out "CFRunLoopRun()" also loads the app. I'm probably doing something stupid but can't seem to figure it out.

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  • SQL Server and iPad app interaction

    - by Phanindar
    I have to write an app for iPad that would take data from SQL Server and post it to the iPad. I looked up on this over the Internet and found that i have to write a web service to expose the data from SQL server using ASP.NET. I did an app previously in android that would take data from my dropbox a/c and display it to the user. I made use of the drop-box api available. I was wondering if anything like that exists for SQL? Also, i have to code in Obj-C for the iPad, so how will i write ASP.NET code? I have more doubts. Thanks in advance.

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  • ping: unknown host google.com

    - by Tar
    Relevant output: /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 servers_ip_address server.2006scape.com server /etc/resolv.conf search 2006scape.com #Generated by NetworkManager nameserver 8.8.8.8 nameserver 8.8.4.4 Some stuff from tcpdump 07:46:28.795843 IP server_ip.42841 > 8.8.4.4.domain: 60253+ PTR? 87.127.104.87.in-addr.arpa. (44) 07:46:28.795980 IP server_ip.54001 > 8.8.4.4.domain: 7390+ PTR? 60.187.80.98.in-addr.arpa. (43) 07:46:28.804029 IP server_ip.59667 > 8.8.4.4.domain: 58876+ PTR? 134.154.161.72.in-addr.arpa. (45) 07:46:28.884171 IP server_ip.46255 > 8.8.4.4.domain: 63027+ PTR? 195.156.251.84.in-addr.arpa. (45) 07:46:28.884217 IP server_ip.35426 > 8.8.4.4.domain: 10538+ PTR? 118.3.182.166.in-addr.arpa. (44) 07:46:28.884253 IP server_ip.53635 > 8.8.4.4.domain: 29928+ PTR? 230.94.81.83.in-addr.arpa. (43) 07:46:28.884286 IP server_ip.45787 > 8.8.4.4.domain: 41151+ PTR? 18.32.223.121.in-addr.arpa. (44) 07:46:28.946045 IP server_ip.47246 > 8.8.4.4.domain: 43103+ PTR? 81.70.251.84.in-addr.arpa. (43) 07:46:28.946066 IP server_ip.33208 > 8.8.4.4.domain: 61117+ PTR? 69.170.184.71.in-addr.arpa. (44) Anyone have any input as to what is causing this?

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  • Problem with screen redrawing at DOS app in VmWare Player

    - by MicTech
    I have very old DOS Application (CadSoft Eagle - PCB Designer) and I want to work with it on my workstation with Windows 7. Then I install Windows 98 and that software into VmWare Player. But that software has serious problem with redrawing screen. It's very slow in comparison with my Intel Celeron 333MHz with Windows 98. I have same problem if I try to use DOSBox on Windows XP (same Celeron 333MHz). I also trying run this application directly on Windows XP (same Celeron 333MHz) with compatibility mod set to "Windows 98", but I get "(0Dh): General Protection Fault". Can someone give me good advice how I solve that?

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  • Implementing a scalable and high-performing web app

    - by Christopher McCann
    I have asked a few questions on here before about various things relating to this but this is more of a consolidation question as I would like to check I have got the gist of everything. I am in the middle of developing a social media web app and although I have a lot of experience coding in Java and in PHP I am trying things a bit different this time. I have modularised each component of the application. So for example one component of the application allows users to private message each other and I have split this off into its own private messaging service. I have also created a user data service the purpose of which is to return data about the user for example their name, address, age etc etc from the database. Their is also another service, the friends service, which will work off the neo4j database to create a social graph. My reason for doing all this is to allow me up to update seperate modules when I need to - so while they mostly all run off MySQL right now I could move one to Cassandra later if I thought it approriate. The actual code of the web app is really just used for the final construction. The modules behind it dont really follow any strict REST or SOAP protocol. Basically each method on our API is turned into a PHP procedural script. This then may make calls to other back-end code which tends to be OO. The web app makes CURL requests to these pages and POSTs data to them or GETs data from them. These pages then return JSON where data is required. I'm still a little mixed up about how I actually identify which user is logged in at that moment. Do I just use sessions for that? Like if we called the get-messages.php script which equates to the getMessages() method for that user - returning all the private messages for that user - how would the back-end code know which user it is as posting the users ID to the script would not be secure. Anyone could do that and get all the messages. So I thought I would use sessions for it. Am I correct on this? Can anyone spot any other problems with what I am doing here? Thanks

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  • Explain a block of crazy JS code inside Sizzle(the CSS selector engine)

    - by Andy Li
    So, here is the function for pre-filtering "CHILD": function(match){ if ( match[1] === "nth" ) { // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6' var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec( match[2] === "even" && "2n" || match[2] === "odd" && "2n+1" || !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]); // calculate the numbers (first)n+(last) including if they are negative match[2] = (test[1] + (test[2] || 1)) - 0; match[3] = test[3] - 0; } // TODO: Move to normal caching system match[0] = done++; return match; } The code is extracted from line 442-458 of sizzle.js. So, why is the line var test = ..., have the exec inputing a boolean? Or is that really a string? Can someone explain it by splitting it into a few more lines of code?

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  • SPF for two different outgoing servers?

    - by Marcus
    I have ran into a problem that I think someone should have a really clever answer for. Today we have our own mailserver that looks like "mail.domain.com" – which we use to send out mail to our customers (with a modified PHPMailer script). Usually around 5000 mails every day. Everything from customer support to invoices goes through there. The from-header is set to "[email protected]". We are now thinking of migrating to Google Apps for internal use (with 70+ users). However, we cannot use Gmails SMTP for sending "bulk" mails (they have a limit of 500 outgoing mails per day) so we really want to keep using our current system for sending automated mail to our customers – and using gmails SMTP for our internal use. So, how do we set up our SPF-records (Sender Policy Framework) for this? We do not want to get stuck in any filters for "spoofing" the sender from either type of account (the ones sent from our own server, and through Gmails). In short: we want to be able to use the same e-mail adress (for sending) on two different SMTP servers (and therefore two different IP-adresses). Anyone with a good knowledge off SPF who knows how to go about? Or if it is even possible? Anything else I should think of when switching to Google Apps?

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  • How to show login screen only for the first time when app launches

    - by Jaw Ali
    I want to launch the login screen when first time app launches other wise app work simple but problem is that again again it goes to login screen. here is the code which i am using in didFininsh I want the user show go to login screen first time only and next time it should show splitViewController [[NSUserDefaults standardUserDefaults] registerDefaults:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:YES],@"firstLaunch",nil]]; if ([[NSUserDefaults standardUserDefaults] boolForKey:@"firstLaunch"]) { [self.window addSubview:[splitViewController view]]; LoginViewController *targetController = [[LoginViewController alloc] initWithNibName:@"LoginViewController" bundle:nil]; targetController.modalPresentationStyle = UIModalPresentationFullScreen; [self.splitViewController presentViewController:targetController animated:YES completion:nil]; } else { [self.window addSubview:[splitViewController view]]; } // my comment[window addSubview:splitViewController.view]; [window makeKeyAndVisible]; return YES;

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  • Ruby class variable is reset after rails app initialized

    - by Phuong Nguy?n
    I tried to assign a class static variable like this class QueryLogger < Logger @@query_logger_default_instance = nil def self.default_instance # Use global variable because static variable doesn't work @@query_logger_default_instance ||= self.new(STDOUT) end end In initializers folder of my rails app, I added a file with this code block ActiveRecord::Base.logger = QueryLogger.default_instance In a request (action of controller), I make a call to this: QueryLogger.default_instance. My assumption is that the call to default_instance will always report the same. However, it does not. Now I try to watch stuff in NetBeans by setting breakpoint inside default_instance. Thing happen as expected, the default_instance get called twice, one due to the initializer block and one due to the call to my action. Surprising thing is, in both times, @@query_logger_default_instance report nil inside NetBeans inspector. The first nil report is correct, but the second shocked me. It's look like static variable gets reset after rails app initialized. Is there some magic there?

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  • Remove app in Win7 that was auto-published with Windows Xp Mode

    - by TEEKAY
    I have several copies/instances of my xp mode image and have a bunch of apps that were auto-published to Win7. I have since disabled the "auto-publish" apps in the instances but still have the applications listed. What is the correct/best way to clear them out. I read a post somewhere that you can just delete the shortcut in the start menu but I want to remove all links and don't know if that would suffice? Thanks TK

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  • Bullet physics engine, how to freeze an object?

    - by Markus
    Using Bullet 2.76 I'm trying to freeze an object (rigid body) so that it instantly stops moving, but still responds to collisions. I tried setting it's activation state to DISABLE_SIMULATION, but then it's virtually nonexistent to other objects. Furthermore, if objects "collide" with it when it's disabled, strange things begin to happen (object's falling through static bodies, etc.) I suppose, temporarily converting it to a static rigid body could work, but is there an existing "native" way to achieve this on Bullet's side? Edit: Is there a way to turn off gravity for a specific object?

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  • Transaction to find an entity - locks all entities of that type?

    - by user246114
    Hi, Reading the docs for transactions: http://code.google.com/appengine/docs/java/datastore/transactions.html An example provided shows one way to make an instance of an object: try { tx.begin(); Key k = KeyFactory.createKey("SalesAccount", id); try { account = pm.getObjectById(Employee.class, k); } catch (JDOObjectNotFoundException e) { account = new SalesAccount(); account.setId(id); } ... When the above transaction gets executed, it will probably block all other write attempts on Account objects? I'm wondering because I'd like to have a user signup which checks for a username or email already in use: tx.begin(); "select from User where mUsername == str1 LIMIT 1"; if (count > 0) { throw new Exception("username already in use!"); } "select from User where mEmail == str1 LIMIT 1"; if (count > 0) { throw new Exception("email already in use!"); } pm.makePersistent(user(username, email)); // ok. tx.commit(); but the above would be even more time consuming I think, making an even worse bottleneck? Am I understanding what will happen correctly? Thanks

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  • Problem with notification bar in fullscreen app

    - by Mathias Lin
    I run an app in fullscreen mode where fullscreen is defined as a theme in xml for the entire app. <style name="AskTingTingTheme" parent="android:Theme"> <item name="android:windowNoTitle">true</item> <item name="android:windowFullscreen">true</item> <item name="android:windowBackground">@null</item> </style> Generally it works ok, but there are some issues in some cases: 1) when I open the search dialog via search button - Screenshot: http://tinyurl.com/3xzadft 2) when I open spinner widgets that are very long and fill the screen (so that the list is usually scrollable) - Screenshot: http://tinyurl.com/39q5ya2 The problem is that when I open the search dialog or spinner widget, the system notification bar occurs for a few millisecs and then scrolls off the screen again. Please see the screenshots linked above. I'm currently on 2.2 with NexusOne, but same thing happened on 2.1update1 (esp. case 2) as well before.

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  • iPhone check for a constant at runtime in universal app

    - by joshue
    I'm making a universal iPad/iPhone app which can use the iPad's VGA out connector to mirror the content of the app on an external screen. However, the iPhone does not have this functionality. given the following code, [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(screenInfoNotificationReceieved:) name:UIScreenDidConnectNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(screenInfoNotificationReceieved:) name:UIScreenDidDisconnectNotification object:nil]; I get this error on the phone at launch (works fine in ipad) "dyld: Symbol not found: _UIScreenDidConnectNotification" presumably because UIScreenDidConnectNotification doesnt' exist yet in 3.13. How do I check for this at runtime?

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  • search engine (solr/sphinx) question

    - by noname
    i want to make my threads content searchable with full text search engines like solr. but i wonder one thing. should i index just the thread.title, thread.body and post.body or should i index username, created date, nr of posts, views, country, region and city too that belongs to thread? i mean when an user search for a thread he will get hits returned containing thread title, 2 lines of body, which user has posted it, creation date, tags, and so on. should i index all this information too? but then it would be pretty much the whole database. or should i just index the 3 first columns i mentioned for full text search. and another question. when an user post a new thread, then i have to immidiately tell solr to add that row? if im not, how would it be searchable?

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  • change the who of google calendar event with gdata framework

    - by bouth69
    $gdataCal= new Zend_gdata_calendar($client); //on retrouve l'event a partir de eventURL stocké lors de la création $event = $gdataCal->getCalendarEventEntry($id_event); $who= $gdataCal->newWho();// $who objet de type Zend_Gdata_Extension_Who //les nouvelles valeurs du who $email ="cn21lqqt8jeb9qgulpra6bj948%40group.calendar.google.com"; $rel = 'http://schemas.google.com/g/2005#event.organizer' ; $valueString ='alain developpeur'; $who->setEmail($email); $who->setRel($rel); $who->setValueString($valueString); //$who->setDom($who_old[0]->getDOM());//bizarre mais??? //méthode magic ou setteurs //$event->who= array($who); $event->setWho($who); //on affiche les propriétés du nouveau who pour voir les changements echo'<br >lemail est : '.$who->getEmail(); echo'<br >la value string est : '.$who->getValueString(); echo'<br >la rel est : '.$who->getRel(); //on sauve on spécifie le type de classe dans lequel on veut sauver // $event->save(Zend_Gdata_EventEntry);??? $event->save(Zend_Gdata_App_Entry); thank you for yours answers.

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