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  • Problems with Black Box KVM

    - by MrWizard54
    I just recieved a shipment of equipment orderd by my predicessor that includes brand new Dell Optiplex 990 computers, with standard mice and keyboards. Also included were Black Box ServSwitch Secure KVMs. I've worked with KVMs before and hypothetically they should be the easiest thing in the world to deal with, plug it all together, push the button, go. However, for the life of me I can't get the computers to recognize the mouse or keyboard when plugged into the KVM. We've seen this with multiple KVMs across the order. Any one know what I'm missing? Computers are all Dell 990 with Windows 7.

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  • Mercurial changeset hook problem when auto updating. Server permissions maybe??

    - by Gary Willoughby
    I am using Mercurial SCM over a LAN using a normal shared folder instead of http and i'm having a problem getting the auto update hook to run. I have entered this hook as detailed here: http://mercurial.selenic.com/wiki/FAQ#FAQ.2BAC8-CommonProblems.Any_way_to_.27hg_push.27_and_have_an_automatic_.27hg_update.27_on_the_remote_server.3F This installs the hook, but when i push something to the remote repo i get an error: added 1 changesets with 1 changes to 1 files running hook changegroup: hg update >&2 warning: changegroup hook exited with status -1 There is a stackoverflow question similar to this here: http://stackoverflow.com/questions/2885246/mercurial-auto-update-problem but it offers no solutions other than it may be a permissions error somewhere. Has anyone else had this problem and can anyone else shed any more light on this or give me a heads up on where to start fixing this? Thanks.

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  • Unzip files using JavaScript

    - by techfandu
    I want to display OpenOffice files, .odt and .odp at client side using a web browser. These files are zipped files. Using Ajax, I can get these files from server but these are zipped files. I have to unzip them using JavaScript, I have tried using inflate.js, http://www.onicos.com/staff/iz/amuse/javascript/expert/inflate.txt, but without success. How can I do this?

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  • MVC + Extjs + IIS6 + Wildcard Mapping = Post Form resulting in 302 object moved

    - by Orkun Balkanci
    Everything seems to work fine until i want to submit the form and update the database. Wildcard mapping works on requests like "/navigation/edit/1", but when i submit the form as: var ajaxPost = function(Url, Params) { Ext.Ajax.request({ url: Url, params: Params, method: 'POST', async: false, scope: this }); }; it says "200 bad response: syntax error" and in firebug there is "Failed to load source for: http://.../Navigation/edit/1". Any help?

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  • Creating different margins on the first page of a word template

    - by Paul
    I have a letterhead template and I need the first page left margin to be larger than subsequent pages. I've seen the option of placing a text box or image box in the header to push the text but this ends up throwing off the tabs and bullet list indentation markers. I thought of setting up the first page using two columns and pushing the text to start on the second column but I can't seem to find a way to get the text to switch back to 1 column on the second page when it is created from text overflowing. Does anyone know how something like this is possible? Thanks in advance, Paul

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  • Lockless queue implementation ends up having a loop under stress

    - by Fozi
    I have lockless queues written in C in form of a linked list that contains requests from several threads posted to and handled in a single thread. After a few hours of stress I end up having the last request's next pointer pointing to itself, which creates an endless loop and locks up the handling thread. The application runs (and fails) on both Linux and Windows. I'm debugging on Windows, where my COMPARE_EXCHANGE_PTR maps to InterlockedCompareExchangePointer. This is the code that pushes a request to the head of the list, and is called from several threads: void push_request(struct request * volatile * root, struct request * request) { assert(request); do { request->next = *root; } while(COMPARE_EXCHANGE_PTR(root, request, request->next) != request->next); } This is the code that gets a request from the end of the list, and is only called by a single thread that is handling them: struct request * pop_request(struct request * volatile * root) { struct request * volatile * p; struct request * request; do { p = root; while(*p && (*p)->next) p = &(*p)->next; // <- loops here request = *p; } while(COMPARE_EXCHANGE_PTR(p, NULL, request) != request); assert(request->next == NULL); return request; } Note that I'm not using a tail pointer because I wanted to avoid the complication of having to deal with the tail pointer in push_request. However I suspect that the problem might be in the way I find the end of the list. There are several places that push a request into the queue, but they all look generaly like this: // device->requests is defined as struct request * volatile requests; struct request * request = malloc(sizeof(struct request)); if(request) { // fill out request fields push_request(&device->requests, request); sem_post(device->request_sem); } The code that handles the request is doing more than that, but in essence does this in a loop: if(sem_wait_timeout(device->request_sem, timeout) == sem_success) { struct request * request = pop_request(&device->requests); // handle request free(request); } I also just added a function that is checking the list for duplicates before and after each operation, but I'm afraid that this check will change the timing so that I will never encounter the point where it fails. (I'm waiting for it to break as I'm writing this.) When I break the hanging program the handler thread loops in pop_request at the marked position. I have a valid list of one or more requests and the last one's next pointer points to itself. The request queues are usually short, I've never seen more then 10, and only 1 and 3 the two times I could take a look at this failure in the debugger. I thought this through as much as I could and I came to the conclusion that I should never be able to end up with a loop in my list unless I push the same request twice. I'm quite sure that this never happens. I'm also fairly sure (although not completely) that it's not the ABA problem. I know that I might pop more than one request at the same time, but I believe this is irrelevant here, and I've never seen it happening. (I'll fix this as well) I thought long and hard about how I can break my function, but I don't see a way to end up with a loop. So the question is: Can someone see a way how this can break? Can someone prove that this can not? Eventually I will solve this (maybe by using a tail pointer or some other solution - locking would be a problem because the threads that post should not be locked, I do have a RW lock at hand though) but I would like to make sure that changing the list actually solves my problem (as opposed to makes it just less likely because of different timing).

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  • Invoking web service methods from code-behind

    - by Peter Wone
    The application on which I am working has a web service exposing various methods. Most of these methods use WebOperationContext.Current to set headers up to prevent cacheing. This works fine when the service methods are consumed in AJAX via the generated proxy, but when I attempt to do the same thing from code-behind, WebOperationContext.Current is null. Can anyone tell me how to confer appropriate call context on the method invocation?

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  • What can impact the throughput rate at tcp or Os level?

    - by Jimm
    I am facing a problem, where running the same application on different servers, yields unexpected performance results. For example, running the application on a particular faster server (faster cpu, more memory), with no load, yields slower performance than running on a less powerful server on the same network. I am suspecting that either OS or TCP is causing the slowness on the faster server. I cannot use IPerf , unless i modify it, because the "performance" in my application is defined as Component A sends a message to Component B. Component B sends an ACK to component A and ONLY then Component A would send the next message. So it is different from what IPerf does, which to my knowledge, simply tries to push as many messages as possible. Is there a tool that can look at OS and TCP configuration and suggest the cause of slowness?

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  • Memory release from local variable in javascript

    - by Bob
    Quick question. I have a js function which gets called on the page every few seconds. It's an ajax update thing. Being a function, I declare local variables. I don't want to use closures or global variables for various reasons. I'd never considered this, but do I need to release/clear the variables at the end of the function to release memory or will js do this for me automatically ? Thanks

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  • How to make NetBeans IDE 6.8 show svn commit status (especially for "dirty" files)

    - by Andrew M. Andrews III
    I just switched from Eclipse to NetBeans IDE 6.8 for my PHP/Ajax development. Eclipse always showed a little hard disk symbol over the file icon for files that were in sync with the svn repository, and an asterisk for files with changes that have not been committed. Is there a way to see the commit status in NetBeans? If not, what is your preferred way of recognizing which files to commit?

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  • recommendation for configuration for a multi-core guestOS

    - by reidLinden
    Hi there, I've just received an upgraded Host machine, and am looking to push some of those advances to my workstations Guest OS(s). In particular, I used to have a single processor, with 2 cores, so my guestOS only had 1/1. Now, I've got a single processor with 8 cores, so I'm curious about what would be recommended for my GuestOS now? 1 processor/4 cores? 2 processors/2Cores? 4 processors/1 core? My instinct says to stick with the number of physical processors (or less), but, is that based on reality? I spent a good while looking for an answer to this, but perhaps my google-karma isn't in my favor today. Suggestions?

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  • How to install remote software NOT on a domain?

    - by Nicros
    I have a situation where some software (that I wrote) is going to be deployed on 60 laptops for an event. The laptops are all running windows 7, but there is no domain controller, and they will all be connected to a 192.168.x.x network using wifi. Is there any convenient way to push the software (consisting of an msi file) can be pushed out to all the laptops and installed? I looked at WMIC, but I think that requires machines be joined to a domain, as does Group Policy. The other alternative is Powershell, but I have literally 4 hours to do this and will have no time to figure out the right script. It's not the end of the world if it has to be done manually (I can find volunteers) but it would be nicer if it could be automated somehow.

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  • Is there a way to automate testing for a GNS3 network topology?

    - by Chedy2149
    I'm working on an MPLS backbone topology using GNS3, this topology includes configuration of several networking technologies such as IPv6, BGP, OSPF, IPv6 to IPv4 dynamic tunneling, MPLS based VPNs, MPLS based traffic engineering... So I'm a beginner with basic knowledge in networking (Ipv4 addressing, basic routing and switching) and I can't just easly test if my topology works or not, moreover fiddling with configuration I've noticed that sometimes when getting MPLS config right and missing BGP config all my topology is messed up. Given that I use Cisco 7200 series routers, is there any way to build a test harness for my topology in order to guarentee correctness with a single push button automated process?

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  • html5 uploader + jquery drag & drop: how to store file data with FormData?

    - by lauthiamkok
    I am making a html5 drag and drop uploader with jquery, below is my code so far, the problem is that I get an empty array without any data. Is this line incorrect to store the file data - fd.append('file', $thisfile);? $('#div').on( 'dragover', function(e) { e.preventDefault(); e.stopPropagation(); } ); $('#div').on( 'dragenter', function(e) { e.preventDefault(); e.stopPropagation(); } ); $('#div').on( 'drop', function(e){ if(e.originalEvent.dataTransfer){ if(e.originalEvent.dataTransfer.files.length) { e.preventDefault(); e.stopPropagation(); // The file list. var fileList = e.originalEvent.dataTransfer.files; //console.log(fileList); // Loop the ajax post. for (var i = 0; i < fileList.length; i++) { var $thisfile = fileList[i]; console.log($thisfile); // HTML5 form data object. var fd = new FormData(); //console.log(fd); fd.append('file', $thisfile); /* var file = {name: fileList[i].name, type: fileList[i].type, size:fileList[i].size}; $.each(file, function(key, value) { fd.append('file['+key+']', value); }) */ $.ajax({ url: "upload.php", type: "POST", data: fd, processData: false, contentType: false, success: function(response) { // .. do something }, error: function(jqXHR, textStatus, errorMessage) { console.log(errorMessage); // Optional } }); } /*UPLOAD FILES HERE*/ upload(e.originalEvent.dataTransfer.files); } } } ); function upload(files){ console.log('Upload '+files.length+' File(s).'); }; then if I use another method is that to make the file data into an array inside the jquery code, var file = {name: fileList[i].name, type: fileList[i].type, size:fileList[i].size}; $.each(file, function(key, value) { fd.append('file['+key+']', value); }); but where is the tmp_name data inside e.originalEvent.dataTransfer.files[i]? php, print_r($_POST); $uploaddir = './uploads/'; $file = $uploaddir . basename($_POST['file']['name']); if (move_uploaded_file($_POST['file']['tmp_name'], $file)) { echo "success"; } else { echo "error"; } as you can see that tmp_name is needed to upload the file via php... html, <div id="div">Drop here</div>

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  • jQuery function execute on Button Click and Enter/Return (key)

    - by Alvin Jones
    I'm trying to create a little search box that allows you to search Twitter based on the keyword you enter in the input field. While it's work, it only works if you press the Submit button. I would also like to be able to press the Enter or Return key to initiate the search. I've tried using the .sumbit function and wrapping my input around a form element with no success. Any insight would be greatly appreciate! Live example: http://tinyurl.com/84axyym <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> <script> $(document).ready(function(){ function(data) { $('#startSearch').click(function(){ $('#tweets .results').remove(); var searchTerm = 'http://search.twitter.com/search.json?q=' + $('#twitterSearch').val() + '&callback=?' $.getJSON(searchTerm, function(data) { $.each(data.results, function() { $('<div class="results"></div>') .hide() .append('<a class="userPicLink" href="http://twitter.com/' + this.from_user + '">' + '<img class="userImg" src="' + this.profile_image_url + '">' + '</a>') .append('<span class="userName">' + '<a href="http://twitter.com/' + this.from_user + '">' + this.from_user + '</span>') .append('<span class="userText">' + this.text + '</span>') .append('<time class="textTime">' + relTime(this.created_at) + '</time>') .appendTo('#tweets') .fadeIn(); }); }); </script> <body> <label id="searchLabel" for="twitterSearch">Search</label> <input type="search" list="searchSugg" id="twitterSearch" placeholder="css3 animation" required aria-required="true"> <input id="startSearch" type="submit"> <datalist id="searchSugg"> <option value="css3 mulitple backgrounds"> <option value="html5 video"> <option value="responsive web design"> <option value="twitter api"> </datalist> <div id="tweets"> </div> </body>

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  • Using Arch Linux computer as a server for Rack Apps

    - by wxl
    What would be the best way to go about using an Arch Linux computer as a Rack (as in Ruby Rack, not an actual rack server) server? Here's what I want to be able to do: Automatically deploy on a git push to the server. (I already have this worked out, on post-receive the server checks out the app to /home/git/app from /home/git/app.git.) Run a Rack server application to serve up this app, one that can be restarted on demand. Run a MongoDB server Be able to access the app by going to my-server.local/app or something similar. (It's really only going to be used on the local network, no port forwarding or outside use) Any ideas would be greatly appreciated. I apologize if this seems too "do it for me".

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  • Multiple sessions for one user?

    - by ganuke
    Hi I have host web application which is developed using java and jsp. In client side each client give five ajax calls to the server to retrieve data from the server in every 30 seconds. My problem is can one user who use one browser to log in to the system have multiple session at a time. Reason is when i use the tool to use monitor the firewall I can see more than 10 sessions are active for one IP. How this can happen? any comments

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  • How do you pass a JSON object to an MVC action parameters?

    - by TimTam
    I would like to pass {"parameter1":true, "parameter2":false, "parameter3":true} To my action public JsonResult Action(bool parameter1, bool parameter2, bool parameter3) { //... } Using JQueries ajax method using the JSON as the data parameter (data: {"parameter1...) How do I accomplish this, right now my parameters aren't getting recognized on the server side.

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  • cannot select items list from telerik mvc combox box

    - by user384080
    I'm trying to implement the comboboxfor as follow: @(Html.Telerik().ComboBoxFor(model => model.ProductId) .AutoFill(true) .HighlightFirstMatch(true) .DataBinding(binding => binding.Ajax().Select("GetProductByKeyword", "Product")) I managed to populate the list but does not allow me to select from the list. Also, I need to show the product name but at the same time I need to bind the productId as this is Id will stored in the database. any ideas?

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  • cluster of services and restarting on package upgrade

    - by Marcin Cylke
    I'm using puppet to manage a bunch of servers. Those servers run a simple service - exposed to the world via load balancer. That service's instances are independent in that they can run on their own, are are deployed on multiple servers to increase responsiveness. Now, when I push a new package to repo and puppet catches up with it appearing there it just updates this package on all services. This results in a short downtime of entire service. Is there a way of configuring puppet to do restart the services sequentially? Or using any other kind of strategy?

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  • JS text to array

    - by Sonny
    Hi i got this text 2/92/20 3/32/32 4/62/6 5/22/28 6/60/61 7/33/32 8/34/31 9/31/19 10/19/19 11/34/39 12/32/32 14/19/25 15/45/37 16/32/32 17/84/36 18/72/33 and i need it to be like // 2/92/20 chars[0][0]=2; chars[0][1]=92; chars[0][2]=20; How should i make that PS: the split must be in $.ajax({ type: "POST", url: "char_info2.php", dataType: "html", success: function(data) { //here }

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