AJAX :: Scriptresource.axd And Load Balancer Servers
Dec 21, 2010
We host a SaaS application on 4 windows 2008 servers loadbalancer via a LVS. We use infragistics and Ajax Control Toolkit on several pages, one page represents a list of people using a Web Datagrid, each time a person is clicked in the list, an Ultra Web Tab component is updated at the botom of the page with detailed information on that person. After a certain amount of clics on different people (number of clics can be between 1 and 5) Scriptresource.axd craches with the following error :
I don't get this error when I run my application on one server using the server's private IP adress. I tried to synchronize the dates of the dlls System.Web and System.Web.Extensions on each server, I still get the same error.
We are using Two servers for our application managed by a load balancer. One of which server contains Windows server 2003 & other one contains Windows server 2008. When a request is served by windows 2003 server and its subsequent goes to the other one (2008 server). Users gets log out. Are we need same Operating systems on both systems because( when request served by 2008, and subsequent on 2003 is served without any issue).
I have the following web farm setup in production server. Browser --> HTTPS --> Load Balancer --> HTTP --> webserver node F5 Load balancer handles off box SSL termination. It implies that SSL resides on F5 load balancer. Problem Statement: Ajax calls do not go through unless "Access data sources across domains" option is enabled in IE security settings.
I have the similar setup in staging server except F5 Load balancer. The ASP.Net application makes perfect AJAX calls on both HTTP and HTTPS. However, the staging server web farm use windows NLB and SSL resides on individual web server nodes
Problem: This problem occurs only in one client machine running IE8. I believe that it is a configuration/component problem because I also running IE8 and it works fine. Following error message pop up every time when the button is click inside the update panel.It occurs once I try to click a button inside the updatePanel. Controls inside updatePanel disappears, and the updateProgress keep running.
I tried so many solutions including following
Changing the Web.config with "~/scriptResource.axd" There is no timer control from AjaxControlToolkit on the page. I have checked modified dates, which are correct on the AJAX Control Tool Kit assemblies as accepted.if (typeof(Sys) !== 'undefined') Sys.Application.notifyScriptLoaded(); I have tried many other options with out any luck. Looks like the required ScriptResource.axd file is not getting loaded on that particular client machine due to some reason, which i can not find out. This problem occurs only in one client machine running IE8, that's making testing problematic for me.
My Configuration includes the following .NET Frame Work 2.0 with AJAX Control Tool Kit Library (1.0.61025)
Error message : Error: [Exception... "'Sys.ScriptLoadFailedException: Sys.ScriptLoadFailedException: The script 'http://gateway/ApplicationName/ScriptResource.axd?d=pXGxsCxfFpN7YoDKJe9ANJUGdhhEYXdDvlJNvZyr3dWA3jxhYKmHBTZXvAXPr8NFAZhv6MOINf4Ktd7XCgzHFg2&t=633372084573906250' failed to load. Check for: Inaccessible path.......
I have a couple of servers and a load balancer. I want to show a server name which is currently serving the page.
I am using HttpContext.Current.Request.ServerVariables["SERVER_NAME"] and HttpContext.Current.Request.ServerVariables["LOCAL_ADDR"] but is shows the same data for all servers (load balancer information is shown but not the information about exact server name).
I'm creating web application behind load balancer. To this moment I configured it to store session in database but I'm not sure how should I handle session expiration. The problem is not sessions are not removed from database but Session_End event because I have to call some web service method in it.
Assuming Session_End is called when expires the thing I'm afraid of is situation when session is created on one server but finished on another. In this case I'm afraid Session_End on first server will be executed prematurely and I will call web service too early. What would you suggest in this situation?
I remember some time ago reading about Sql Agent reacting to session end event and then performing custom code. Can anybody confirm that this solution is possible?
I have published a website and installed it on my local machine and it works fine, but when i install it on the both servers who controlled from the load balancer i got an error like the WebResource.axd not found. how can i resolve this problem? i have checked the IIS for axd mapping, the "Check that file exists" is unchecked for both servers.
I haven't deployed behind a load balancer before. My customer has a WCF service built and tested on servers using a service model configuration that is relatively straightforward. It provides a service to return an image of a map for another application. To get the map, it calls other services.
The service was built in Visual Studio 2010 targeting the 3.5 framework. The customer is using IIS 7.5 and an F5 load balancer. When moving to the production server, the Web.config was changed to add the load balancer behavior and specify the endpoint to show the physical and logical address of the service:
There was a problem when the service was deployed to a server behind the load balancer. When I try to call the service from WCFStorm or WebServiceStudio I get the message "The provided URI scheme 'https' is invalid; expected 'http'.
The endpoints for the service itself look right to me. However in the development and testing versions of the config, the client section uses http instead of http, while on the production servers it uses the load balancer's https address. This seems like it should be obvious, but we're missing it.
One issue with ASP.NET apps is that they periodically reload themselves, causing a long delay and possibly timeout for users who hit the site during that time.
This may not be a problem for small websites, but it can represent significant downtime for high-traffic sites, if users happen to get routed to node in the web farm that is restarting.
Can load balancers somehow "know" if an ASP.NET application domain on a specific server is restarting? Then, they can route traffic around this server until the application has completed restarting.
Currently, I have my load balancer ping a simple .aspx page on the site. If there is a delay or the page fails to load, the host is taken out of rotation. Is it possible to do a more targeted health check, perhaps at the IIS level rather than ASP.NET level?
I have four servers 2 App Server(behind firewall) and 2 webservers and each server is accessing through Load Balancer.
App Server is a modules for Data Access layer and webserver is for Presentation layer.
My Issue is My Load Balancer has Secure certificate installed but certificate is not installed on servers and I want to make cookie as secure in site , as per my understanding " cookie should be set as secure only for SSL site other ways new session will get create every time" so should I install SSL certificate on webserver to make my cookie as secure or will it work properly even if only Load Balance has SSL.
I have 3 servers where 1 of them serves as a load balancing server. In my ASPX page, I want to add a HTML comment to show the IP address or even host name of the server selected by the load balancer. I tried looking through IIS Server variables and tried using SERVER_NAME but that just returns the domain URL.
My website uses forms auth and I am trying to create a load balancer (hardware) rule which will keep track of sessions based on the aspxauth cookie. Is it safe assume that the value of the cookie is unique?
We have 2 asp.net web servers working through the LoadBalancer that are accessible externally. Earlier, for all applications we did logging into DB. Now we have 1 more app that doesn't work with DB, it is used for 'messages transferring'. On TEST environment it does logging into files into a local folder.
If we deploy it "as is" to PROD we will have 2 separate log files... that is not very good idea. Connecting to DB just for logging doesn't seem reasonable too...
Possible solution could be store log file into a shared folder somewhere on another server.
My website is looking in the wrong place for the scriptresource.axd and webresource.axd. How do I point it at the correct subfolder? Or how do I set it so that scriptresource.axd and webresource.axd are stored in the root of the website?All the ajax is done within subfolders. The web.config is at the root of the website.
I have setup my website (ASP.NET 3.5) with AJAX, running with no problems at all.
When I test my website locally and on my main top level domain, there are no problems.
When I'm on a subdomain page, AJAX client side framework fails to load. I observed the problem deeply and found that whenever I'm on a subdomain page, WebResource.axd DOES load but ScriptResource.axd DOESN'T load (returns 404 Not Found error). I think I should modify some entries at web.config file, but I have no idea on what to do?
In my website i have used ajax. I have made a subdomain. All the files are in the subdomain. But no ajax controls are working. When viewing source,
In our test environment, with the same code, everything works fine. This tells me there was something on the production server that's preventing this from working. About 4 days before this started happening, we found that some user documentation (PDF) wasn't being protected by Forms Authentication (we need only legitmate users having access to it) so we added a wildcard mapping in IIS with "verify that file exists" was unchecked, knowing that if it were checked, we'd have this problem. I had one of the network admins check this setting after this started happenig and he said that it was still unchecked. I asked him to remove the wildcard mapping altogether and I still see the same behavior.
I am certain that this isn't a coding problem; again, as it went through the QA process in our test environment, everything works perfectly. And after the last deployment to production three weeks ago, everything was perfect as well. We added the wildcard mapping (which shouldn't have had an effect) and four days later the site breaks. I've asked our IT department if any changes were made to the server recently and nobody says they did.
What settings does anyone know of that might be causing this, either server or application? I checked the web.config and all the sections are there that deal with the ScriptResource HttpHandler and HttpModules. In fact, the web.configs are identical between the production and test environment, so I know it hasn't been tampered with.
I have page that works ok on localhost, but it throws an error on server. This pages was working ok before until I added additional grid to updatePanel. Is there any limit how many grids you can have in updatePanel. The error message is below.
Message: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500 Line: 4723 Char: 21 Code: 0
I'm having a problem trying to combine the ScriptResource.axd files automatically generated by Ajax using ScriptManager's CompositeScript property....on some pages there's 15 of these files, so I'd like to reduce that number to reduce the HTTP requests. I tried following the post here - [URL] - but am getting errors when trying to do what it instructs, such as:
Microsoft JScript runtime error: 'Sys' is undefined Microsoft JScript runtime error: ASP.NET Ajax client-side framework failed to load. Below is the code I am using for the ScriptManager. These errors go away if I do not use CompositeScript. Has anyone else attempted to combine these files? Am I doing something wrong in this code?
I use ASP.NET Ajax in my web site and I am monitoring the HTTP requests per each page. I am surprised by the excessive call of ScriptResource.axd with different query string variables. I am pasting a sample of HTTP trace below. The call for ScriptResource.axd take lots time percentage out of total response time. Is this by design or there is something wrong with my AJAX configuration in web.config?
Actually it is degrading the performance of the application. And the user experience becoming very poor in case of lower bandwidth.
I am trying to set up my web site on a stand alone server using Windows Server 2003 with IIS 6 which will access SQL server database (2008) on windows 2008 R2 server (also not in the domain) I am using form authentication and I have configured a custom identity account in IIS6. The local account is on both servers with same password and I have registered the account using aspnet_regiis.exe -ga The application pool in my iis6 has the custom local account set as the identity and my web.config file has the appropriate tags in the system.web element <identity impersonate="true" />
The problem is the local account does not seem to get passed to the sql server. Right now my iis settings are anonymous access (using the local acct vs isr) and no authentication specified under that - I did try Integrated and basic but it prompts for the username and password which I do not want. One article I read stated this: windows authentication does not support delegation (passing credentials from one server to another) and is limited to the one hop rule, only a primary token can be passed to a second server. windows authentication on iis (all versions) gives the thread a secondary(impersonation) token which can not be used to access any network resouce