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  • sticky bit on NFS file system

    - by Kris_R
    I have a system where to the main server (homes, nfs, ntp, queue...) can log-in only root – all the other users use front-end host with NFS-mounted home directories (RW) and all other software directories (read-only). My problem is, that time to time, if root or normal user with sudo makes some administrative works on front-end some homes of normal users getting sticky bits (drwsr-sr-x). If it happens usually the user can't log-in (as long as permission for his home are not changed to drwxr-xr-x). The last time I saw it after compiling some new software (normal user configure;make) and installation from the same directory as root (su and make install or direct as normal user sudo make install). Can somebody explain me why it happens and what should I do to get rid of this problem? p.s. I'm using CentOS 5.7

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  • How to enable Postfix filter on OS X server (Lion) without getting overwritten?

    - by mjbraun
    I have a Postfix after-queue content filter that works fine on stock Ubuntu Postfix install. However, on a OS X Lion Server I'm testing out, I see this "auto-generated" language in the master.cf file: # ==== Begin auto-generated section ======================================== # This section of the master.cf file is auto-generated by the Server Admin # Mail backend plugin whenever mails settings are modified. smtp inet n - n - 1 postscreen smtpd pass - - n - - smtpd -o receive_override_options=no_address_mappings The problem is, to enable the filter the same area of the master.cf file has to be changed to have an entry like this: smtp inet n - - - - smtpd -o content_filter=mytest_filter:dummy So, it looks like the line would be blown away every I make a change in Server Admin. Is there a better place for me to put the call to the filter such that it's persistent? I appreciate any assistance and/or guidance!

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  • Find out what program is using mirror drivers

    - by Frantumn
    I can't get access to Aero transparency themes in Windows 7. The troubleshooter says that I need to close programs that are using mirror drivers in order for that to work. I've looked through my task manager list of running applications and I can't see any that jump out as the culprit. Is there a program that will tell me what the app causing this issue is? MS Troubleshooter doesn't give me the details.

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  • Can I change a user password in Linux from the command line with no interactivity?

    - by Paul Hoffman
    I have a specific use case where I would really like to be able to change a user's password with a single command with no interactivity. This is being done in a safe fashion (over SSH, and on a system with only one user able to be logged in), so it's fine to expose the new password (and even the old one, if necessary) on the command line. FWIW, it's a Ubuntu system. I just want to avoid having to add something Expect-like to this system for just this one task.

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  • can anyone can help me [closed]

    - by Shiranui01
    One of my clients just bought a used Panasonic P2 camera, a HVX200, and wants to edit P2 MXF footage (720p 24p) in iMovie 11 and OS 10.6. I'm looking for an simple, reliable, reasonably priced converter so they can take their Panasonic P2 footage and prep it for iMovie 11. I am seeing a number of products on the market that do this, but I'm not sure which one I should purchase. Do you guys have something suitable for this task?

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  • how can I estimate the conversion speed (fps) of a video based on CPU power? [closed]

    - by Ahoura Ghotbi
    Atm I am running a video sharing website and I am converting alot of videos. the queue is getting a bit too long (400 videos). I am planning on purchasing a new server and I was wondering if there anyway I can estimate the fps while converting 10 videos at the same time? Regards EXTRA INFO I am using MP4Box (which uses ffmpeg) to handle the encoding etc. Its encoding at 23 CRF, audio bitrate of 96 and audio sampling rate of 44100. The server will have the following processor : Dual Opteron 6272 (2 x 16 cores, 32 cores total) + 128GB RAM.

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  • Full Control Over CD/DVD burning

    - by Hypertext
    Suppose I want to burn just the 6000th byte(if thats not possible say the 10th sector) on a CDR without touching anyother region. Sounds possible but is there any tool to accomplish this. Yeah sure, there may be no clear point doing this but is this possible technically?. (Doesnt matter maintaining the CDFS, integrity or whatever standard here. Just the task.) It would be great to know if there are any software regarding this.

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  • MS Project 2010 Filter and Highlights

    - by claubervs
    I'd like to know if there is a way to highlight dates that differs from one another. I have two columns "Baseline Finish Date" and "Re-forecast Finish Date" and I would like to highlight the dates that for each task, is different in those columns. Meaning the tasks that suffered a re-forecast due to other circumstances, and does not equal to the original dates. I also would like a filter that does the same thing as above, showing only this different date tasks.

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  • Changing MS Project to 20-hour or 30-hour week.

    - by Eric
    I'm working on a project in MS Project and the default is a 40-hour week. I'm putting each individual task in based on a number of hours, not days. I'd like to have the whole thing set up and computing at 40-hour weeks, and then change it to 20 hours and have the project recompute. How do I do this? I think it has something to do with changing the "project calendar" but I can't quite figure it out.

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  • How do i network ten branch office with voip, video calling and files sharing.

    - by Oluwalogbon
    Am an IT person, have done some networking job for my organization like Lan and wireless within the area, configure windows server to manage staff account My company has ten branch (In each state) in my country and am giving a task to connect dose branch together, which there will be VOIP, Video calling and sharing of files within the branch. I need someone to help me with this project..what and what did I need to put in place

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  • Use backups if unavailable (not just down)

    - by PriceChild
    Using haproxy, I want: A pool of 'main' servers and 'backup' servers, though they don't necessarily have to be in separate pools. Each backend has a low 'maxconn' (in this case 1) Clients should not wait in a queue. If there are no immediately available servers in the 'main' pool they should be shunted to the 'backup' pool without delay. Right now I have one backend, 'main' servers have an absurdly high weighting and it 'works'. acl use_backend + connslots is along the right lines but without the patch in my own answer it isn't perfect. Bonus points for not requiring a modified haproxy binary.

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  • How do I group Quick Launch icons in Windows Vista?

    - by user39619
    My quick launch task bar has about 30 icons and is pretty unmanegable. What I would like is to create Quick Launch groups, so I can move my mouse over the "Design Group" icon and a pop-up/menu will appear that shows my icons for Illustrator, Photoshop, etc... I can almost get there by linking to a folder and having my Design icons in there, but I have to click on the icon. Can anyone recommend anything here?

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  • Delphi - WndProc() in thread never called

    - by Robert Oschler
    I had code that worked fine when running in the context of the main VCL thread. This code allocated it's own WndProc() in order to handle SendMessage() calls. I am now trying to move it to a background thread because I am concerned that the SendMessage() traffic is affecting the main VCL thread adversely. So I created a worker thread with the sole purpose of allocating the WndProc() in its thread Execute() method to ensure that the WndProc() existed in the thread's execution context. The WndProc() handles the SendMessage() calls as they come in. The problem is that the worker thread's WndProc() method is never triggered. Note, doExecute() is part of a template method that is called by my TThreadExtended class which is a descendant of Delphi's TThread. TThreadExtended implements the thread Execute() method and calls doExecute() in a loop. I triple-checked and doExecute() is being called repeatedly. Also note that I call PeekMessage() right after I create the WndProc() in order to make sure that Windows creates a message queue for the thread. However something I am doing is wrong since the WndProc() method is never triggered. Here's the code below: // ========= BEGIN: CLASS - TWorkerThread ======================== constructor TWorkerThread.Create; begin FWndProcHandle := 0; inherited Create(false); end; // --------------------------------------------------------------- // This call is the thread's Execute() method. procedure TWorkerThread.doExecute; var Msg: TMsg; begin // Create the WndProc() in our thread's context. if FWndProcHandle = 0 then begin FWndProcHandle := AllocateHWND(WndProc); // Call PeekMessage() to make sure we have a window queue. PeekMessage(Msg, FWndProcHandle, 0, 0, PM_NOREMOVE); end; if Self.Terminated then begin // Get rid of the WndProc(). myDeallocateHWnd(FWndProcHandle); end; // Sleep a bit to avoid hogging the CPU. Sleep(5); end; // --------------------------------------------------------------- procedure TWorkerThread.WndProc(Var Msg: TMessage); begin // THIS CODE IS NEVER CALLED. try if Msg.Msg = WM_COPYDATA then begin // Is LParam assigned? if (Msg.LParam > 0) then begin // Yes. Treat it as a copy data structure. with PCopyDataStruct(Msg.LParam)^ do begin ... // Here is where I do my work. end; end; // if Assigned(Msg.LParam) then end; // if Msg.Msg = WM_COPYDATA then finally Msg.Result := 1; end; // try() end; // --------------------------------------------------------------- procedure TWorkerThread.myDeallocateHWnd(Wnd: HWND); var Instance: Pointer; begin Instance := Pointer(GetWindowLong(Wnd, GWL_WNDPROC)); if Instance <> @DefWindowProc then begin // Restore the default windows procedure before freeing memory. SetWindowLong(Wnd, GWL_WNDPROC, Longint(@DefWindowProc)); FreeObjectInstance(Instance); end; DestroyWindow(Wnd); end; // --------------------------------------------------------------- // ========= END : CLASS - TWorkerThread ======================== Thanks, Robert

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  • rspec undefined local variable or method `class_nesting_depth`

    - by unsorted
    I'm using rails 3 w/ rspec-rails 2.4.1 and I get an error during model generation. Can't find anything from googling. Anyone know what might be going on? TIA $ rails g model CourseRating student_id:integer course_id:integer difficulty:integer usefulness:integer invoke active_record create db/migrate/20110111044035_create_course_ratings.rb create app/models/course_rating.rb invoke rspec create spec/models/course_rating_spec.rb (erb):1:in `template': undefined local variable or method `class_nesting_depth' for #<Rspec::Generators::ModelGenerator:0x0000010424e460> (NameError) from /Users/glurban/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/erb.rb:753:in `eval' from /Users/glurban/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/erb.rb:753:in `result' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/file_manipulation.rb:111:in `block in template' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/create_file.rb:54:in `call' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/create_file.rb:54:in `render' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/create_file.rb:63:in `block (2 levels) in invoke!' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/create_file.rb:63:in `open' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/create_file.rb:63:in `block in invoke!' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/empty_directory.rb:114:in `call' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/empty_directory.rb:114:in `invoke_with_conflict_check' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/create_file.rb:61:in `invoke!' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions.rb:95:in `action' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/create_file.rb:26:in `create_file' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/actions/file_manipulation.rb:110:in `template' from /Users/glurban/code/recruitd/lib/generators/rspec/model/model_generator.rb:10:in `create_test_file' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/task.rb:22:in `run' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:109:in `invoke' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:269:in `block in _invoke_for_class_method' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/shell.rb:74:in `with_padding' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:258:in `_invoke_for_class_method' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:150:in `_invoke_from_option_test_framework' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/task.rb:22:in `run' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:109:in `invoke' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:269:in `block in _invoke_for_class_method' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/shell.rb:74:in `with_padding' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:258:in `_invoke_for_class_method' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:150:in `_invoke_from_option_orm' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/task.rb:22:in `run' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/thor-0.14.6/lib/thor/base.rb:389:in `start' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/railties-3.0.0/lib/rails/generators.rb:163:in `invoke' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/railties-3.0.0/lib/rails/commands/generate.rb:10:in `<top (required)>' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239:in `require' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239:in `block in require' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:225:in `block in load_dependency' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:591:in `new_constants_in' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:225:in `load_dependency' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239:in `require' from /Users/glurban/.rvm/gems/ruby-1.9.2-rc2/gems/railties-3.0.0/lib/rails/commands.rb:17:in `<top (required)>' from script/rails:6:in `require' from script/rails:6:in `<main>'

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  • Freezes (not crashes) with GCD, blocks and Core Data

    - by Lukasz
    I have recently rewritten my Core Data driven database controller to use Grand Central Dispatch to manage fetching and importing in the background. Controller can operate on 2 NSManagedContext's: NSManagedObjectContext *mainMoc instance variable for main thread. this contexts is used only by quick access for UI by main thread or by dipatch_get_main_queue() global queue. NSManagedObjectContext *bgMoc for background tasks (importing and fetching data for NSFetchedresultsController for tables). This background tasks are fired ONLY by user defined queue: dispatch_queue_t bgQueue (instance variable in database controller object). Fetching data for tables is done in background to not block user UI when bigger or more complicated predicates are performed. Example fetching code for NSFetchedResultsController in my table view controllers: -(void)fetchData{ dispatch_async([CDdb db].bgQueue, ^{ NSError *error = nil; [[self.fetchedResultsController fetchRequest] setPredicate:self.predicate]; if (self.fetchedResultsController && ![self.fetchedResultsController performFetch:&error]) { NSSLog(@"Unresolved error in fetchData %@", error); } if (!initial_fetch_attampted)initial_fetch_attampted = YES; fetching = NO; dispatch_async(dispatch_get_main_queue(), ^{ [self.table reloadData]; [self.table scrollRectToVisible:CGRectMake(0, 0, 100, 20) animated:YES]; }); }); } // end of fetchData function bgMoc merges with mainMoc on save using NSManagedObjectContextDidSaveNotification: - (void)bgMocDidSave:(NSNotification *)saveNotification { // CDdb - bgMoc didsave - merging changes with main mainMoc dispatch_async(dispatch_get_main_queue(), ^{ [self.mainMoc mergeChangesFromContextDidSaveNotification:saveNotification]; // Extra notification for some other, potentially interested clients [[NSNotificationCenter defaultCenter] postNotificationName:DATABASE_SAVED_WITH_CHANGES object:saveNotification]; }); } - (void)mainMocDidSave:(NSNotification *)saveNotification { // CDdb - main mainMoc didSave - merging changes with bgMoc dispatch_async(self.bgQueue, ^{ [self.bgMoc mergeChangesFromContextDidSaveNotification:saveNotification]; }); } NSfetchedResultsController delegate has only one method implemented (for simplicity): - (void)controllerDidChangeContent:(NSFetchedResultsController *)controller { dispatch_async(dispatch_get_main_queue(), ^{ [self fetchData]; }); } This way I am trying to follow Apple recommendation for Core Data: 1 NSManagedObjectContext per thread. I know this pattern is not completely clean for at last 2 reasons: bgQueue not necessarily fires the same thread after suspension but since it is serial, it should not matter much (there is never 2 threads trying access bgMoc NSManagedObjectContext dedicated to it). Sometimes table view data source methods will ask NSFetchedResultsController for info from bgMoc (since fetch is done on bgQueue) like sections count, fetched objects in section count, etc.... Event with this flaws this approach works pretty well of the 95% of application running time until ... AND HERE GOES MY QUESTION: Sometimes, very randomly application freezes but not crashes. It does not response on any touch and the only way to get it back to live is to restart it completely (switching back to and from background does not help). No exception is thrown and nothing is printed to the console (I have Breakpoints set for all exception in Xcode). I have tried to debug it using Instruments (time profiles especially) to see if there is something hard going on on main thread but nothing is showing up. I am aware that GCD and Core Data are the main suspects here, but I have no idea how to track / debug this. Let me point out, that this also happens when I dispatch all the tasks to the queues asynchronously only (using dispatch_async everywhere). This makes me think it is not just standard deadlock. Is there any possibility or hints of how could I get more info what is going on? Some extra debug flags, Instruments magical tricks or build setting etc... Any suggestions on what could be the cause are very much appreciated as well as (or) pointers to how to implement background fetching for NSFetchedResultsController and background importing in better way.

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  • How to implement an offline reader writer lock

    - by Peter Morris
    Some context for the question All objects in this question are persistent. All requests will be from a Silverlight client talking to an app server via a binary protocol (Hessian) and not WCF. Each user will have a session key (not an ASP.NET session) which will be a string, integer, or GUID (undecided so far). Some objects might take a long time to edit (30 or more minutes) so we have decided to use pessimistic offline locking. Pessimistic because having to reconcile conflicts would be far too annoying for users, offline because the client is not permanently connected to the server. Rather than storing session/object locking information in the object itself I have decided that any aggregate root that may have its instances locked should implement an interface ILockable public interface ILockable { Guid LockID { get; } } This LockID will be the identity of a "Lock" object which holds the information of which session is locking it. Now, if this were simple pessimistic locking I'd be able to achieve this very simply (using an incrementing version number on Lock to identify update conflicts), but what I actually need is ReaderWriter pessimistic offline locking. The reason is that some parts of the application will perform actions that read these complex structures. These include things like Reading a single structure to clone it. Reading multiple structures in order to create a binary file to "publish" the data to an external source. Read locks will be held for a very short period of time, typically less than a second, although in some circumstances they could be held for about 5 seconds at a guess. Write locks will mostly be held for a long time as they are mostly held by humans. There is a high probability of two users trying to edit the same aggregate at the same time, and a high probability of many users needing to temporarily read-lock at the same time too. I'm looking for suggestions as to how I might implement this. One additional point to make is that if I want to place a write lock and there are some read locks, I would like to "queue" the write lock so that no new read locks are placed. If the read locks are removed withing X seconds then the write lock is obtained, if not then the write lock backs off; no new read-locks would be placed while a write lock is queued. So far I have this idea The Lock object will have a version number (int) so I can detect multi-update conflicts, reload, try again. It will have a string[] for read locks A string to hold the session ID that has a write lock A string to hold the queued write lock Possibly a recursion counter to allow the same session to lock multiple times (for both read and write locks), but not sure about this yet. Rules: Can't place a read lock if there is a write lock or queued write lock. Can't place a write lock if there is a write lock or queued write lock. If there are no locks at all then a write lock may be placed. If there are read locks then a write lock will be queued instead of a full write lock placed. (If after X time the read locks are not gone the lock backs off, otherwise it is upgraded). Can't queue a write lock for a session that has a read lock. Can anyone see any problems? Suggest alternatives? Anything? I'd appreciate feedback before deciding on what approach to take.

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  • Asp.Net MVC and ajax async callback execution order

    - by lrb
    I have been sorting through this issue all day and hope someone can help pinpoint my problem. I have created a "asynchronous progress callback" type functionality in my app using ajax. When I strip the functionality out into a test application I get the desired results. See image below: Desired Functionality When I tie the functionality into my single page application using the same code I get a sort of blocking issue where all requests are responded to only after the last task has completed. In the test app above all request are responded to in order. The server reports a ("pending") state for all requests until the controller method has completed. Can anyone give me a hint as to what could cause the change in behavior? Not Desired Desired Fiddler Request/Response GET http://localhost:12028/task/status?_=1383333945335 HTTP/1.1 X-ProgressBar-TaskId: 892183768 Accept: */* X-Requested-With: XMLHttpRequest Referer: http://localhost:12028/ Accept-Language: en-US Accept-Encoding: gzip, deflate User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) Connection: Keep-Alive DNT: 1 Host: localhost:12028 HTTP/1.1 200 OK Cache-Control: private Content-Type: text/html; charset=utf-8 Vary: Accept-Encoding Server: Microsoft-IIS/8.0 X-AspNetMvc-Version: 3.0 X-AspNet-Version: 4.0.30319 X-SourceFiles: =?UTF-8?B?QzpcUHJvamVjdHNcVEVNUFxQcm9ncmVzc0Jhclx0YXNrXHN0YXR1cw==?= X-Powered-By: ASP.NET Date: Fri, 01 Nov 2013 21:39:08 GMT Content-Length: 25 Iteration completed... Not Desired Fiddler Request/Response GET http://localhost:60171/_Test/status?_=1383341766884 HTTP/1.1 X-ProgressBar-TaskId: 838217998 Accept: */* X-Requested-With: XMLHttpRequest Referer: http://localhost:60171/Report/Index Accept-Language: en-US Accept-Encoding: gzip, deflate User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) Connection: Keep-Alive DNT: 1 Host: localhost:60171 Pragma: no-cache Cookie: ASP.NET_SessionId=rjli2jb0wyjrgxjqjsicdhdi; AspxAutoDetectCookieSupport=1; TTREPORTS_1_0=CC2A501EF499F9F...; __RequestVerificationToken=6klOoK6lSXR51zCVaDNhuaF6Blual0l8_JH1QTW9W6L-3LroNbyi6WvN6qiqv-PjqpCy7oEmNnAd9s0UONASmBQhUu8aechFYq7EXKzu7WSybObivq46djrE1lvkm6hNXgeLNLYmV0ORmGJeLWDyvA2 HTTP/1.1 200 OK Cache-Control: private Content-Type: text/html; charset=utf-8 Vary: Accept-Encoding Server: Microsoft-IIS/8.0 X-AspNetMvc-Version: 4.0 X-AspNet-Version: 4.0.30319 X-SourceFiles: =?UTF-8?B?QzpcUHJvamVjdHNcSUxlYXJuLlJlcG9ydHMuV2ViXHRydW5rXElMZWFybi5SZXBvcnRzLldlYlxfVGVzdFxzdGF0dXM=?= X-Powered-By: ASP.NET Date: Fri, 01 Nov 2013 21:37:48 GMT Content-Length: 25 Iteration completed... The only difference in the two requests headers besides the auth tokens is "Pragma: no-cache" in the request and the asp.net version in the response. Thanks Update - Code posted (I probably need to indicate this code originated from an article by Dino Esposito ) var ilProgressWorker = function () { var that = {}; that._xhr = null; that._taskId = 0; that._timerId = 0; that._progressUrl = ""; that._abortUrl = ""; that._interval = 500; that._userDefinedProgressCallback = null; that._taskCompletedCallback = null; that._taskAbortedCallback = null; that.createTaskId = function () { var _minNumber = 100, _maxNumber = 1000000000; return _minNumber + Math.floor(Math.random() * _maxNumber); }; // Set progress callback that.callback = function (userCallback, completedCallback, abortedCallback) { that._userDefinedProgressCallback = userCallback; that._taskCompletedCallback = completedCallback; that._taskAbortedCallback = abortedCallback; return this; }; // Set frequency of refresh that.setInterval = function (interval) { that._interval = interval; return this; }; // Abort the operation that.abort = function () { // if (_xhr !== null) // _xhr.abort(); if (that._abortUrl != null && that._abortUrl != "") { $.ajax({ url: that._abortUrl, cache: false, headers: { 'X-ProgressBar-TaskId': that._taskId } }); } }; // INTERNAL FUNCTION that._internalProgressCallback = function () { that._timerId = window.setTimeout(that._internalProgressCallback, that._interval); $.ajax({ url: that._progressUrl, cache: false, headers: { 'X-ProgressBar-TaskId': that._taskId }, success: function (status) { if (that._userDefinedProgressCallback != null) that._userDefinedProgressCallback(status); }, complete: function (data) { var i=0; }, }); }; // Invoke the URL and monitor its progress that.start = function (url, progressUrl, abortUrl) { that._taskId = that.createTaskId(); that._progressUrl = progressUrl; that._abortUrl = abortUrl; // Place the Ajax call _xhr = $.ajax({ url: url, cache: false, headers: { 'X-ProgressBar-TaskId': that._taskId }, complete: function () { if (_xhr.status != 0) return; if (that._taskAbortedCallback != null) that._taskAbortedCallback(); that.end(); }, success: function (data) { if (that._taskCompletedCallback != null) that._taskCompletedCallback(data); that.end(); } }); // Start the progress callback (if any) if (that._userDefinedProgressCallback == null || that._progressUrl === "") return this; that._timerId = window.setTimeout(that._internalProgressCallback, that._interval); }; // Finalize the task that.end = function () { that._taskId = 0; window.clearTimeout(that._timerId); } return that; };

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  • Jquery calendar and tab sliding div clash...

    - by StealthRT
    Hey all, i am trying my best to figure out another way around this problem i seem to have encountered. On my website i have a jquery calendar and also a jquery div tab slider (this: http://www.queness.com/resources/html/tabmenu/jquery-tabbed-menu-queness.html). The problem comes into play with the DIV tag. The calender loads up inside a DIV with a id of 'calender'. The CSS for the tabs have the DIV hidden: CSS: .boxBody div {display:none;} .boxBody div.show {display:block;} .boxBody #category a {display:block;} And because of that, the calender never shows on the page. However, if i comment out that css code above, it shows up but does not cover each section as it should. In other words, everything is shown when it should be hidden until the tabs are clicked on to revel it. code: <script type="text/javascript"> $(document).ready(function() { $('#tabMenu > li').click(function(){ $('#tabMenu > li').removeClass('selected'); $(this).addClass('selected'); $('.boxBody div').slideUp('1500'); $('.boxBody div:eq(' + $('#tabMenu > li').index(this) + ')').slideDown('1500'); }).mouseover(function() { $(this).addClass('mouseover'); $(this).removeClass('mouseout'); }).mouseout(function() { $(this).addClass('mouseout'); $(this).removeClass('mouseover'); }); $('.boxBody #category li').mouseover(function() { $(this).css('backgroundColor','#888'); $(this).children().animate({paddingLeft:"20px"}, {queue:false, duration:300}); }).mouseout(function() { $(this).css('backgroundColor',''); $(this).children().animate({paddingLeft:"0"}, {queue:false, duration:300}); }); $('.boxBody li').click(function(){ window.location = $(this).find("a").attr("href"); }).mouseover(function() { $(this).css('backgroundColor','#888'); }).mouseout(function() { $(this).css('backgroundColor',''); }); }); </script> <div align="center"> <div class="Mainbox"> <ul id="tabMenu"> <div id="theLogo"><[img] src="img/theLogo.png" width="415" height="146" /></div> <li class="stats"><[img] src="img/Stats.png" width="70" height="52" id="tab1" /></li> <li class="cal"><[img] src="img/cal.png" width="70" height="52" id="tab2" /></li> <li class="loyalty"><[img] src="img/Loyalty.png" width="70" height="52" id="tab3" /></li> <li class="Employees"><[img] src="img/Employees.png" width="70" height="52" id="tab4" /></li> <li class="txtemail"><[img] src="img/TxtEmail.png" width="70" height="52" id="tab5" /></li> </ul> <div class="boxTop"></div> <div class="boxBody"> <div id="stats" class="show"> Just a test here.... </div> <div id="cal"> <div id='calendar'></div> </div> <div class="boxBottom"></div> </div> </div> How can i change the tab javascript code so that it does not have to hide the DIV's so that the calendar will work? I've tried to replace all div's with 'span' or 'p' but that does not seem to work at all. Any help would be great as i am stuck on this and can not go any further without it being solved! :) David

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  • Perl IO modules possibly causing issues in Net::DNS module

    - by Rich
    Hi! I’m porting some software that I wrote for a White Russian OpenWRT system to a new Kamikaze 8.09.1 OpenWRT system but I am having some serious issues that I’m hoping you can help me with. Old system Linux kernel 2.4.34 MIPSEL arch Perl 5.8.7 Net::DNS 0.48 IO 1.21 IO::Socket 1.28 IO::Socket::INET 1.28 New system Linux kernel 2.6.26.8 MIPS arch Perl 5.10.0 Net::DNS 0.66 IO 1.23_01 IO::Socket 1.30_01 IO::Socket::INET 1.31 First, let me provide some background information… I am trying to resolve my server (clearprobe.winbeam.com) from within my Perl program and see the following if I enable debugging in Net::DNS: resolve: Server 'clearprobe-ddns.winbeam.com' ;; query(clearprobe-ddns.winbeam.com) ;; setting up an AF_INET() family type UDP socket ;; send_udp(192.168.88.1:53) ;; send_udp(4.2.2.2:53) ;; send_udp(192.168.88.1:53) ;; send_udp(4.2.2.2:53) resolve: res->errorstring: query timed out Both of these servers resolve clearprobe.winbeam.com fine from the command line: root@cwb-2-11:~# echo “nameserver 192.168.88.1” > /etc/resolv.conf root@cwb-2-11:~# nslookup clearprobe-ddns.winbeam.com Server: 192.168.88.1 Address 1: 192.168.88.1 router Name: clearprobe-ddns.winbeam.com Address 1: 64.13.48.40 64-13-48-40.war.clearwire-dns.net root@cwb-2-11:~# echo “nameserver 4.2.2.2” > /etc/resolv.conf root@cwb-2-11:~# nslookup clearprobe-ddns.winbeam.com Server: 4.2.2.2 Address 1: 4.2.2.2 vnsc-bak.sys.gtei.net Name: clearprobe-ddns.winbeam.com Address 1: 64.13.48.40 64-13-48-40.war.clearwire-dns.net Using Perl’s call to the C gethostbyaddr() function works fine, but I need to do another lookup later in the software which requires that I specify the nameserver (clearprobe-ddns.winbeam.com is the authority for my internal DNS zone), hence my Net::DNS requirement. Now, here is the IO module-specific information: What I am seeing is that the reply is coming back from the nameserver (confirmed via tcpdump – I can send the captures if you’d like), but the UDP packets are sitting in the process’s UDP receive queue pending reception by Net::DNS (the approx 1752 bytes per response stay queued waiting for $sel-can_read()): root@cwb-2-11:~# netstat -una Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State udp 1752 0 0.0.0.0:52680 0.0.0.0:* root@cwb-2-11:~# netstat -una Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State udp 5256 0 0.0.0.0:52680 0.0.0.0:* If I force $sock[AF_INET]-recv($buf, $self-_packetsz) around line 803 of /usr/lib/perl5/5.10/Net/DNS/Resolver/Base.pm, instead of waiting for IO::Select’s can_read() function ( @ready = $sel-can_read($timeout)) to populate @ready, the response is received and processed. Any idea what could be causing this issue? In a possibly related matter, I noticed in another script that the following code fails in the same manner (network responses stay in the process’s TCP receive queue) with the new system: $sock = new IO::Socket::INET( PeerAddr => "$server", PeerPort => 37, Proto => 'tcp', Timeout => 5 ); Whereas the following code works: $sock = new IO::Socket::INET( PeerAddr => "$server", PeerPort => 37, Proto => 'tcp' ); I have looked through the NET::DNS code and don’t see a timeout passed for the UDP sockets, so I am not sure if that this is related or not. Please let me know if I can provide you with any further information in order to help diagnose this issue. Thanks! -Rich

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  • How do I add the j2ee.jar to a Java2WSDL ant script programmatically?

    - by Marcus
    I am using IBM's Rational Application Developer. I have an ant script that contains the Java2WSDL task. When I run it via IBM, it gives compiler errors unless I include the j2ee.jar file in the classpath via the run tool (it does not pick up the jar files in the classpath in the script). However, I need to be able to call this script programmatically, and it is giving me this error: "java.lang.NoClassDefFoundError: org.eclipse.core.runtime.CoreException" I'm not sure which jars need to be added or where? Since a simple echo script runs, I assume that it is the j2ee.jar or another ant jar that needs to be added. I've added it to the project's buildpath, but that doesn't help. (I also have ant.jar, wsanttasks.jar, all the ant jars from the plugin, tools.jar, remoteAnt.jar, and the swt - all which are included in the buildpath when you run the script by itself.) Script: <?xml version="1.0" encoding="UTF-8"?> <project default="build" basedir="."> <path id="lib.path"> <fileset dir="C:\Program Files\IBM\WebSphere\AppServer\lib" includes="*.jar"/> <!-- Adding these does not help. <fileset dir="C:\Program Files\IBM\SDP70Shared\plugins\org.apache.ant_1.6.5\lib" includes="*.jar"/> <fileset dir="C:\Program Files\IBM\SDP70\jdk\lib" includes="*.jar"/> <fileset dir="C:\Program Files\IBM\SDP70\configuration\org.eclipse.osgi\bundles\1139\1\.cp\lib" includes="*.jar"/> <fileset dir="C:\Program Files\IBM\SDP70Shared\plugins" includes="*.jar"/> --> </path> <taskdef name="java2wsdl" classname="com.ibm.websphere.ant.tasks.Java2WSDL"> <classpath refid="lib.path"/> </taskdef> <target name="build"> <echo message="Beginning build"/> <javac srcdir="C:\J2W_Test\Java2Wsdl_Example" destdir="C:\J2W_Test\Java2Wsdl_Example"> <classpath refid="lib.path"/> <include name="WSExample.java"/> </javac> <echo message="Set up javac"/> <echo message="Running java2wsdl"/> <java2wsdl output="C:\J2W_Test\Java2Wsdl_Example\example\META-INF\wsdl\WSExample.wsdl" classpath="C:\J2W_Test\Java2Wsdl_Example" className= "example.WSExample" namespace="http://example" namespaceImpl="http://example" location="http://localhost:9080/example/services/WSExample" style="document" use="literal"> <mapping namespace="http://example" package="example"/> </java2wsdl> <echo message="Complete"/> </target> </project> Code: File buildFile = new File("build.xml"); Project p = new Project(); p.setUserProperty("ant.file", buildFile.getAbsolutePath()); DefaultLogger consoleLogger = new DefaultLogger(); consoleLogger.setErrorPrintStream(System.err); consoleLogger.setOutputPrintStream(System.out); consoleLogger.setMessageOutputLevel(Project.MSG_INFO); p.addBuildListener(consoleLogger); try { p.fireBuildStarted(); p.init(); ProjectHelper helper = ProjectHelper.getProjectHelper(); p.addReference("ant.projectHelper", helper); helper.parse(p, buildFile); p.executeTarget(p.getDefaultTarget()); p.fireBuildFinished(null); } catch (BuildException e) { p.fireBuildFinished(e); } Error: [java2wsdl] java.lang.NoClassDefFoundError: org.eclipse.core.runtime.CoreException [java2wsdl] at java.lang.J9VMInternals.verifyImpl(Native Method) [java2wsdl] at java.lang.J9VMInternals.verify(J9VMInternals.java:68) [java2wsdl] at java.lang.J9VMInternals.initialize(J9VMInternals.java:129) [java2wsdl] at com.ibm.ws.webservices.multiprotocol.discovery.ServiceProviderManager.getDiscoveredServiceProviders(ServiceProviderManager.java:378) [java2wsdl] at com.ibm.ws.webservices.multiprotocol.discovery.ServiceProviderManager.getAllServiceProviders(ServiceProviderManager.java:214) [java2wsdl] at com.ibm.ws.webservices.wsdl.fromJava.Emitter.initPluggableBindings(Emitter.java:2704) [java2wsdl] at com.ibm.ws.webservices.wsdl.fromJava.Emitter.<init>(Emitter.java:389) [java2wsdl] at com.ibm.ws.webservices.tools.ant.Java2WSDL.execute(Java2WSDL.java:122) [java2wsdl] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) [java2wsdl] at org.apache.tools.ant.Task.perform(Task.java:364) [java2wsdl] at org.apache.tools.ant.Target.execute(Target.java:341) [java2wsdl] at org.apache.tools.ant.Target.performTasks(Target.java:369) [java2wsdl] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216) [java2wsdl] at org.apache.tools.ant.Project.executeTarget(Project.java:1185) [java2wsdl] at att.ant.RunAnt.main(RunAnt.java:32)

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  • Algorithm to select groups of similar items in 2d array

    - by mafutrct
    There is a 2d array of items (in my case they are called Intersections). A certain item is given as a start. The task is to find all items directly or indirectly connected to this item that satisfy a certain function. So the basic algorithm is like this: Add the start to the result list. Repeat until no modification: Add each item in the array that satisfies the function and touches any item in the result list to the result list. My current implementation looks like this: private IList<Intersection> SelectGroup ( Intersection start, Func<Intersection, Intersection, bool> select) { List<Intersection> result = new List<Intersection> (); Queue<Intersection> source = new Queue<Intersection> (); source.Enqueue (start); while (source.Any ()) { var s = source.Dequeue (); result.Add (s); foreach (var neighbour in Neighbours (s)) { if (select (start, neighbour) && !result.Contains (neighbour) && !source.Contains (neighbour)) { source.Enqueue (neighbour); } } } Debug.Assert (result.Distinct ().Count () == result.Count ()); Debug.Assert (result.All (x => select (x, result.First ()))); return result; } private List<Intersection> Neighbours (IIntersection intersection) { int x = intersection.X; int y = intersection.Y; List<Intersection> list = new List<Intersection> (); if (x > 1) { list.Add (GetIntersection (x - 1, y)); } if (y > 1) { list.Add (GetIntersection (x, y - 1)); } if (x < Size) { list.Add (GetIntersection (x + 1, y)); } if (y < Size) { list.Add (GetIntersection (x, y + 1)); } return list; } (The select function takes a start item and returns true iff the second item satisfies.) This does its job and turned out to be reasonable fast for the usual array sizes (about 20*20). However, I'm interested in further improvements. Any ideas? Example (X satisfies in relation to other Xs, . does never satisfy): .... XX.. .XX. X... In this case, there are 2 groups: a central group of 4 items and a group of a single item in the lower left. Selecting the group (for instance by starting item [2, 2]) returns the former, while the latter can be selected using the starting item and sole return value [0, 3]. Example 2: .A.. ..BB A.AA This time there are 4 groups. The 3 A groups are not connected, so they are returned as separate groups. The bigger A and B groups are connected, but A does not related to B so they are returned as separate groups.

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