I am calling a web service in my aspx page. the web service (written in java) is acting as a middleware between my system and another system (Siebel) to which I send services and get response for these services. some requests are synchronous. Sometimes when invoking a method the response takes a long time to respond, so a time out exception is thrown.
The problem is that the web service is receiving the same request many times despite I am calling it only once.In my log file and database entries it is clear that the request is called only once. but in the middleware and Siebel side they are receving four or five requests for the same request sent by me.
Is this a bug in asp.net. is it possible that the server where my application is deployed is sending the request many times when not getting the response.Note: iam using Visual studion 2005. the application is deployed to windows server 2003.Iam not discussing the problem of time out. iam asking about the duplicate issue.
we are using the WCF service and hosted using a console application, now we are using LoadRunner and hitting it concurrently
Where giving 50 hits at a time few requests (26) gets completed successfully and remaining gives error TCP error code 10061: No connection could be made because the target machine actively refused it.
A customer wants us to create an ajax-enabled web application that can be used to manage their IT environment (Active directory, mail, file security, ...). However, as the team that will support the web application does not know anything about these IT systems, they would like to split the coding so that all interfacing with the IT environment is done via PowerShell, which is known by the administrators of these systems. This would mean that if new functionality is required, the web team can just create an additional web page and interface and use PowerShell scripts that get created by technically skilled people in that specific topic (ie mail administrators). I don't see an issue using this approach for requests like adding a user where latency is not an issue, but I do wonder if this is feasible for interactive content with Ajax.
Ie I would like to implement a google suggest like search for AD users. This would mean that ie for every x keystrokes (or x seconds whatever approach I implement) an Ajax request will be made and the web application or web service will than use PowerShell to get the data. Taken into account that up to about 75 users can use this feature, is this something that would work? Not only performace-wise but also the number of connections (I read about the Powershell 5 remote session limit but also that it could be put to a higher number)? The example above is probably the most resource heavy Ajax requests (and can be optimized by caching), so taken into account they don't want this nice feature, are basic PowerShell scripts in ajax request really an option. My gut feeling is telling me this is a no-go, but I don't want to exclude the option just because it's not something I usually would do.
If a user makes a second request to the same Web Service method while the first request is already running, is there a way to simply stop the execution of the first request and discard it immediately?
Usually what happens is users get impatient and click on a button 10 times when there's a performance blip in the system, which only makes things worse since the system now has to process 10 queued requests (the first 9 of which are now irrelevant) before any results are returned.
am new to web services and have a quick question. I've some data (an c# class object) that needs to be shared between two different users (of my web service) . all the methods in the web service have a parameter called "sessionkey" which can be used to know what data to share.
I've got a WCF web service that runs fine at the moment but there is talk about using it very heavily soon. As part of it's normal process it writes a file out, then reads it back in again (don't ask why, I know it's stupid). I'm concerned that if we start hitting it with lots of requests then the following might happen.
1. Request 1 writes the file out.
2. Request 2 comes in and overwrites the file.
3. Request 1 reads the file back in but this is now the wrong file.
My understanding is that the requests would naturally queue up so that request 2 wouldn't start until request 1 had finished, but I'm not totally sure.
I have a RESTful webservice. This webservice builds some information (which can take upwards of a couple seconds) and caches the contents.
This works well; however, suppose that many of the same requests come in at about the same time. In our current scenario, each request will build the content before caching. This is obviously not desired as it uses CPU time that could be better served elsewhere. What I would like to do is to suspend/block requests to the same url/cachekey until the content has been built and cached, at which time those other requests will be unblocked and simply fetch the content from cache.
I am not sure the best way. The following are options I have thought about:
Use string.Intern on that cache key and lock. Problem is that this could cause a deadlock if that string is used elsewhere. Use a ConcurrentDictionary and WaitHandle objects to allow other request to lookup in the dictionary if a request is being processed and then "wait" for the request to finish. This would at least give me a timeout capability but I am concerned with the performance of creating many wait handles.
How do I capture the outgoing and incoming soap requests using VS 2008? I read about the SOAP toolkit but it seems the framework now does it? Is it in the Windows SDK?I am debugging a web service on FedEx and they want to see the the SOAP file.
I have a piece of code written in 2 different ways, one a web service and another a WCF client which are trying to access an external 3rd party URL.
The same code when written as an exe works fine, i see my submissions on the 3rd party site, while the web code does not work.
I installed Fiddler to check traffic and to my surprise the web code works when Fiddler is capturing traffic, As soon as I stop Fiddler my code does not work.
For the web service code I get error: The remote name could not be resolved:
For the WCF client I get error: There was no endpoint listening at <<3rd party URL>> that could accept the message. This is often caused by an incorrect address or SOAP action.
Am quite sure now that this is because of some network and/or proxy on my corporate network, but not able to figure out what it can be.
What's the simplest and most effective way to selectively redirect HTTP requests to your ASP.NET page to its HTTPS equivalent? For example, if my page site URL is [URL], I want to redirect some (or all) page requests to [URL] What's the easiest way to do that?
Regarding Linq to SQL with .SQLEXPRESS and VS2010 on Windows 7, I am trying to add a list of entries to an empty table that I have confirmed programmatically does not have duplicate keys. Some info about the situation:Note: The key strings have Unicode characters (English and Chinese mixed).
if i have the web application with many pages like add order page, edit order page, and delete order page actually they also interact with the Sql Server 2008 and i also create web service page call Sales_Service.asmx. i know just i need to put something like query into Web Method in Sales_Service.asmx but i have a lot of queries, i don't know which query i should put into it and how the web page call the Sales_Services.asmx
A customer reported that our asmx web service is continually increasing in memory (mem usage as well as private bytes). We are able to reproduce the problem in our lab with Windows 2003 Server SP2 (fully patched) on some of the machines. The customer is using Windows 2008.
We created a Hello World web service targeting the 2.0 framework built under VS2005 SP1 and a test client that continues to call it. The memory increases steadily - approximately 40K per client request. If the test app is paused, the memory remains the same. When it is closed, the memory drops. Explicit calling of GC.Collect does not drop the memory.
We have run the memory profiler on the service and the leak is all native memory. We have uninstalled/re-installed the Framework on one of the machines but no difference. To our knowledge all of the security and IIS settings are not modified. We have compared app pool, default web site and virtual directory properties to machines that have no problem and they are identical.
I have a .net app developed in .net 4.0 version. And I implemented an asmx web service in this. Now I want to call one of the webservice method in another classis ASP application java script function.
I have datatable consist of 20 records and i want to bulk insert into sqlserver through the asmx webservice. Can anybody guide to me or provide Sample BusinessLogic and webservice code.
I have experienced some troubles when using the IIS server at my workstation with Windows 7. This is a development machine and I don't need to use it as a production server or anything, but for some tests it's quite usefull to see what happens when a lot of requests comes concurrently (in this case even in the same session).
I have learned that with my edition of Windows 7, the limit of requests is 10, but I thought it only means the limit of requests that can be served at any point of time. What I am experiencing instead, is that after firing 10 requests one by one, if the first one didn't complete before the last one was fired, it never completes. The whole IIS is dead, no further requests are put in the worker process queue (there are already 10 requests there hanging so it kinda makes sense) and the only way to go on is to restart.
Is this a standard behavior that cannot be changed on Windows 7 and does firing 10 requests really have to kill IIS (or at least the current worker process) ? Is there some way to change the configuration to fix it (without compromising the setup by creating bunch of worker processes etc.) ?
Let's imaging there are 2 pages on the web site: quick and slow. Requests to slow page are executed for a 1 minute, request to quick 5 seconds.Whole my development career I thought that if 1st started request is slow: he will do a (synchronous) call to DB... wait answer... If during this time request to quick page will be done, this request will be processed while system is waiting for response from DB.[URL] One instance of the HttpApplication class is used to process many requests in its lifetime. However, it can process only one request at a time. Thus, member variables can be used to store per-request data.Does it mean that my original thoughts are wrong?Could you please clarify what they mean? I am pretty sure that thing are as I expect...
When I open my page in Chrome and use the Resource Tracker, at the bottom of the list of requests, there are two GET requests to the aspx file. They take about 2 seconds each. Each request also causes a warning:
Resource interpreted as image but transferred with MIME type text/html.
why a page may be requesting itself, and why it is trying to use it as an image?
I have developed some ASP.NET server controls which include their own javascript and css files. A lot of these controls use jQuery extensions which, as you know, often include their own css files.
I'm using Telerik's RadScript manager which combines the javascript like a boss. However, I'm using the AjaxToolkit's ClientCssResource attribute to include the css files in my server controls, and I have noticed that the CSS files are not getting combined at all. My pages have 10-15 WebResource.axd requests for css files for my server controls.
Everything I find only is about combining javascript, and nothing tells me how I can combine the CSS files. Does anyone know if there is a way to combine the CSS dynamically (I don't want to manually combine as each page might use a different subset of the server controls)?
i am planning to host my all images from another domain which is cookiless but i dont want to alter my all image locations can i do this without changing image locations ?
