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.NET Forum / .NET Framework / XML / April 2006persisent timeout problem consuming webservice
Hello, I have a problem in a C# client that consumes a webservice which is wrapped by WSE 2.0 sp3: The WebService works fine but very rarely my client comes in a state where every call to the webservice results in a timeout exception. Meanwhile all my other internet traffic passes normally so the problem implicitly exists between my client and the WebService. The problem is solved as soon as the client is restarted. I have two questions: 1. What can cause this problem? 2. What is the best way to solve this? kind regards  Signaturervangeldrop Hi, This problem might be complex. It can be caused by many resons. The most probable reason, is because the internet traffic. It might be on either the server side or the client side. Also, there might be too many people accessing that web service, and make the server unable to respond in time. It's hard to say which one is the cause, you have to do more research on it. HTH. Kevin Yu Signature======= "This posting is provided "AS IS" with no warranties, and confers no rights." Hello Kevin, I fully understand the 'toughness' of the situation. Therefore I provide you with more information. 1. De problem is definitely client side. The server immediately picks up on the restarted client application. Also sometimes a part of our client software is capable of communicating with the server. Also requests from the client do not arrive at the server at all. 2. Meanwhile I tried tearing down and rebuilding the reference to the WebService as soon as this problem occurs. Currently the client opens a single proxy class reference for all requests. Do you know of best practises in this? Kind regards, > Hi, > [quoted text clipped - 10 lines] > "This posting is provided "AS IS" with no warranties, and confers no > rights." Hi, 1. This can also be the network issue. Because the network can go bad in different period. When certain client goes wrong, it might be the network problem. When it restarts, the network is good again. So, I still can't decide the cause of the problem. 2. The best practice for creating the proxy class is to use VS.NET IDE's Add Web Reference, and let it generate the proxy class for you. As far as I know, it generates a proxy class for each .asmx file. Kevin Yu Signature======= "This posting is provided "AS IS" with no warranties, and confers no rights." Hello Kevin, 1. Is there possibly anti-DoS or fair-use logic in firewall and security software of Windows XP? 2. My question on best practise is how to treat this proxy class. Must I create an object ref for every transaction to the server or can I pool it or can I keep a persistent object ref? Kind regards, Robbert Signaturervangeldrop > Hi, > [quoted text clipped - 11 lines] > "This posting is provided "AS IS" with no warranties, and confers no > rights." Hi Robbert, 1. Yes, this might be the firewall issue. But I can't be sure. 2. The the proxy object is actually a connection to the web service. Whether to pool it depends on your app. Generally, I suggest you use a new object to release the resources, if it is not called again and again. HTH. Kevin Yu Signature======= "This posting is provided "AS IS" with no warranties, and confers no rights." Hello Kevin, I now changed our code that it will tear down the webservice object reference and create a new one as soon as succesive time-outs occur. The frequency of persistent time-outs decreased but some clients still have them. So far this is acceptable, but the issue is not solved. Please keep me up-to-date if similar issues are posted... Kind regards Signaturervangeldrop > Hi Robbert, > [quoted text clipped - 7 lines] > "This posting is provided "AS IS" with no warranties, and confers no > rights." Hi, If there is similar issue, and I find a resolution, I will let you know. Kevin Yu Microsoft Online Community Support ============================================================================ ========================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue. ============================================================================ ========================== (This posting is provided "AS IS", with no warranties, and confers no rights.) Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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