Http Error 502.3
of the errors you might see is 502.3 Bad Gateway. The 502.3 means while acting as a proxy ARR was unable to complete the request to the upstream server and subsequently send a response back to the client. This can happen for multiple reasons including , failure to connect to the server , no response from the server, or server took too long to respond (time out). For the purposes of this post we are going to look at a timeout error and the data that can be gathered to help isolate the cause. If you are looking at this post then you probably have already seen this error or something similar. This is shown in the browser when detailed errors are enabled in IIS. Another way to identify the source of the 502.3 is with Failed Request Tracing logs in IIS configured to capture Status code 502. From the message the key details are the ErrorCode which you can use to map to to the Winhttp error message, which in this case is ERROR_WINHTTP_TIMEOUT ( Reference WinHttp Error Codes). You will also see in the next line that this is translated to “The operation timed out”. Note that both the 0x80072ee2 and 2147954402 map to the same error ERROR_WINHTTP_TIMEOUT. Now that we know its a timeout we need to determine what type of timeout occurred. Here is a list of the timeouts that can occur in Winhttp ( which if you haven't guessed already is what ARR uses to proxy requests) ResolveTimeout : This occurs if name resolution takes longer than the specified timeout period. ConnectTimeout : This occurs if it takes longer than the specified timeout period to connect to the server after the name resolved. SendTimeout : If sending a request takes longer than this time-out value, the send is canceled. ReceiveTimeout : If a response takes longer than this time-out value, the request is canceled. To identify what type of timeout we can use Winhttp’s built in logging,These can be enabled from the command line on the ARR server using NETSH. Winhttp Traces: Following the example below you can search your log for WinHttpOpenRequest to find your request. The calls to WinHttpSetTimeouts are setting the 4 timeout values based on your ARR time settings found in the Proxy Configuration
Sign in Pricing Blog Support Search GitHub This repository Watch 67 Star 45 Fork 28 aspnet/IISIntegration Code Issues 45 Pull requests 0 Projects 0 Pulse Graphs New issue HTTP 502.3 Bad Gateway running on the IIS with HttpPlatformHandler(1.2) #45 Closed zhengchun opened this Issue Dec 7, 2015 · 9 comments Projects None yet Labels None yet Milestone No milestone Assignees No one https://blogs.iis.net/richma/502-3-bad-gateway-the-operation-timed-out-with-iis-application-request-routing-arr assigned 3 participants zhengchun commented Dec 7, 2015 I'm sorry,i known this issue already discussing at ASPNET-Home#1000 or at ASPNET-Hosting#364,but it still can't help me how to running correct. I'm testing run a HelloWeb project that in the v1.0.0-rc1-update1 version and it can running correct on dnu web command,when publish(dnu publish https://github.com/aspnet/IISIntegration/issues/45 command) and run on IIS integration with HttpPlatformHandler1.2,get HTTP 502.3 Bad Gateway error,i'm read this article Publishing to IIS. the following is my environment: Win10 64-bits HttpPlatformHandler 1.2 .net 4.6 dnvm on 1.0.0-rc1-update1 clr x64 web.config on wwwroot folder:
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site http://stackoverflow.com/questions/37353395/http-error-502-3-bad-gateway-error-returned-while-iis-express-is-starting-on-w About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up HTTP Error 502.3 - http error Bad Gateway Error returned while IIS Express is starting on Windows 10 - ASP.NET RC1 (update 2) MVC 6 web application up vote 0 down vote favorite I have the following issue while trying to start IIS Express using Visual Studio Professional 2015 to run an ASP.NET 5 MVC 6 web application - DNX RC1 (Update 2) on Windows 10: Error Returned: HTTP Error 502.3 http error 502.3 - Bad Gateway The specified CGI application encountered an error and the server terminated the process. Most likely causes: - The CGI application did not return a valid set of HTTP errors. - A server acting as a proxy or gateway was unable to process the request due to an error in a parent gateway. Detailed Error Information: - Module: httpPlatformHandler - Notification: ExecuteRequestHandler - Handler: httpPlatformHandler - Error Code: 0x80072ee2 The curious thing is that I started the same web application in a different operating system (Windows 7) and IDE (Visual Studio Community 2015). For this case I have no issues and web application runs properly. And I make sure to configure the same DNX as active on both operating systems (6.0.0-rc1-final). The only thing that vary is the framework architecture (Windows 7 =[x64] / Windows 10 =[x86]). Down below I am also providing relevant configuration files to complement findings: 1. project.json { "version": "1.0.0-*", "compilationOptions": { "emitEntryPoint": true }, "dependencies": { "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final", "Microsoft.AspNet.Mvc": "6.0.0-rc1-final", "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final", "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final", "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final", "EntityFramework.Core": "7.0.0-rc1-final", "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final", "EntityFramework.Commands": "7.0.0-rc1-final", "Microsoft.Extensions.Logging.Debug": "1.0.0-rc1-final", "Microsoft.Extensions.CodeGenerators.Mvc": "1.0.0-rc1-final", "AutoMapper": "4.2.1" }, "commands": { "web": "Microsoft.AspNet.Server.Kestrel", "ef": "EntityFramework.Commands" }, "fr