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PORequest format is unrecognized for URL unexpectedly ending in '/Convert' happens after 1-2 days
 

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  1. PORequest format is unrecognized for URL unexpectedly ending in '/Convert' happens after 1-2 days
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    <p>I'm calling a webservice using an Microsoft.XMLHTTP call:</p> <pre><code>var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); xmlhttp.open("POST", "/xxx/Converter.asmx/Convert", false); xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); xmlhttp.send("conversionFolder=" + escape(conversionFolder)); if (xmlhttp.status == 200) { xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.async = "false"; xmlDoc.loadXML(xmlhttp.responseText); ... more stuff ... return str; } else { alert(xmlhttp.statusCode + " - " + xmlhttp.statusText); } </code></pre> <p>It all works fine when I remember to add the HttpPost protocol in the local web.config:</p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;configuration&gt; &lt;appSettings/&gt; &lt;connectionStrings/&gt; &lt;system.web&gt; &lt;webServices&gt; &lt;protocols&gt; &lt;add name="HttpPost"/&gt; &lt;/protocols&gt; &lt;/webServices&gt; &lt;compilation debug="false"&gt;&lt;/compilation&gt; &lt;/system.web&gt; &lt;system.codedom&gt; &lt;/system.codedom&gt; &lt;!-- The system.webServer section is required for running ASP.NET AJAX under Internet Information Services 7.0. It is not necessary for previous version of IIS. --&gt; &lt;system.webServer&gt; &lt;/system.webServer&gt; &lt;/configuration&gt; </code></pre> <p>But on one production server it fails after running for 1-2 days. It works fine after the asp.net process has been recycled. It works for 1-2 days and then it fails with this:</p> <pre><code>Exception information: Exception type: InvalidOperationException Exception message: Request format is unrecognized for URL unexpectedly ending in '/Convert'. Request information: Request URL: https://xxx/xxx/converter.asmx/Convert Request path: /xxx/converter.asmx/Convert User host address: 195.50.35.4 User: extranet\kbk Is authenticated: True Authentication Type: Thread account name: NT AUTHORITY\NETWORK SERVICE Thread information: Thread ID: 14 Thread account name: NT AUTHORITY\NETWORK SERVICE Is impersonating: False Stack trace: at System.Web.Services.Protocols.WebServiceHandlerFactory.CoreGetHandler(Type type, HttpContext context, HttpRequest request, HttpResponse response) at System.Web.Services.Protocols.WebServiceHandlerFactory.GetHandler(HttpContext context, String verb, String url, String filePath) at System.Web.Script.Services.ScriptHandlerFactory.GetHandler(HttpContext context, String requestType, String url, String pathTranslated) at System.Web.HttpApplication.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously) </code></pre> <p>Why does it wait for 2 days before failing? And what can I do to prevent it from failing? Has it something to do with the fact that this server runs in HTTPS mode?</p>
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    1. USBrian Pedersen
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    1. COare you sure it's failing after the time lapse and not because of an invalid entry? looking at the error it's showing the URL ending unexpectedly? How do you resolve the issue, can you automate the resolution so you don't incur downtime.
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      1. USRobert
    2. COHas it something to do with objects not being released properly ? Do you use 'external' objects, such as COM in the service which are not properly released ?
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    3. COI'm afraid I don't have an answer, but I can say that we have the exact same problem. Our ASMX web service just stops working, seemingly randomly, with the same error you're getting. We recycle nightly. It doesn't happen every day, or even every week. I'm here because it just happened again after the system was up for 15 hours. We've been unable to correlate it to any performance counters.
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      1. USLarry Silverman
 

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