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.NET Forum / ASP.NET / Web Services / March 2005CryptographicException WSE502
I refer to a post from Sidd [MSFT] on this newsgroup: http://groups.google.ie/groups?hl=en&lr=&threadm=ep6nhFx%24EHA.1400%40TK2MSFTNGP 11.phx.gbl&rnum=1&prev=/groups%3Fnum%3D100%26hl%3Den%26lr%3D%26q%3DWSE502%26btnG %3DSearch i also have the same problem [WSE502] with some messages being rejected, in an asynchronous environment. my situation is slightly different in that i am still using the synchronous version of the web methods, but on a background thread. on this thread i am sending high volumes of short requests to the server. the errors seem to happen sporadically when i do something on the main UI thread that uses the same web service. Sidd, you were looking into this in january, did anything come of it? a patch or workaround? unfortunately i can't send my application code, althought if i am convinced that it is worthwhile to reproduce a similar dumbed-down version, i might do it. thanks tim mackey. Hi Tim, To trouble shoot such problem, it is better that you can provide a sampel which can reproduce the problem, or you can tell how to modify a WSE sample and reproduce the problem. Also, you said you sent high volumes of short requests to the server when the problem occurred, if you reduce the number of request, will things get better? Luke hi Luke, i'm really just following up john o'neills post in january 2005, see http://groups.google.ie/groups?hl=en&lr=&threadm=ep6nhFx%24EHA.1400%40TK2MSFTNGP 11.phx.gbl&rnum=1&prev=/groups%3Fnum%3D100%26hl%3Den%26lr%3D%26q%3DWSE502%26btnG %3DSearch i have the same symptoms as him, and Sidd said he was going to look into it. i would be interested to hear if that was ever followed up. in my app, the user is importing a file containing a web site structure, and building pages and folders out of it, sending these to the server as they are imported. for large import files, there can be over 1500 operations, all done in about 30 seconds over a LAN connection. the processing really needs to be done on the client (to give an accurate progress indication), so i don't want to send off the config file to the server and let the server do it all in one go. have you any suggestions for how i could work around it, given these contstraints? i could lock out the user interface during the import operation (done on worker thread), but this is a last resort. thanks tim Hi Tim, i think Sidd may not recieve the sample to reproduce the problem and didn't make some progress on this issue. Regarding to the problem on your side, I think you may first make if the problem can disappear if you reduce the request to server side, for example, if you just send 100 operation to server. Also, can you use batch mode for the operations, for example, you can compile similar and relative operations to one, and reduce the operation to 100~ 150? Luke Hi Tim, I haven''t looked into this issue as yet. Is it still an issue for you? You never got back to me on whether this error is only caused when calling the Async methods. Thanks, Sidd [MSFT] > hi Luke, > i'm really just following up john o'neills post in january 2005, see http://groups.google.ie/groups?hl=en&lr=&threadm=ep6nhFx%24EHA.1400%40TK2MSFTNGP 11.phx.gbl&rnum=1&prev=/groups%3Fnum%3D100%26hl%3Den%26lr%3D%26q%3DWSE502%26btnG %3DSearch > i have the same symptoms as him, and Sidd said he was going to look > into it. i would be interested to hear if that was ever followed up. [quoted text clipped - 14 lines] > thanks > tim hi Sidd, i wasn't aware you had contacted me?! perhaps you mean the original poster of this problem, john o'neill? in his case he was using the async methods. i'm calling the synchronous methods on a worker thread. it is possible that the UI thread can call operations on the same web service object. could there be problems with this scenario? i thought of doing a lock on the web service object during each call, but this would mean i couldn't multi-task my application, unless i created a new web service object for each thread. this would not be ideal since there is a lot of setting up with the web service object, and my application architecture is built around sharing a single web service object. any thoughts? thanks tim p.s. i was running WSE2 RTM and now 've installed SP3, i'll watch it over the next week and let you know if these problems continue. 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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