While doing the modification on the Installed Applications it’s getting 502 error

[sreeramyenuga]

Hi,

After upgrading FNMS 2020R1 we have observed that any changes done on the Installed Applications . we are facing issue while trying to save getting below error. This is On-Prim Solution. Attached screen shot.

"502 - Web server received an invalid response while acting as a gateway or proxy server.
There is a problem with the page you are looking for, and it cannot be displayed. When the Web server (while acting as a gateway or proxy) contacted the upstream content server, it received an invalid response from the content server"

Thanks,

Sreerama Yenuga

[mfranz]

Can you check this IIS logs, maybe enable Failed Request Tracing and check those logs too, for a more specific error?

[sreeramyenuga]

Hi,

WebUI Error log :

System.Collections.Generic.KeyNotFoundException: Could not find action 'Index' in controller 'Applications'
at Flexera.Web.Core.AccessRightHelper.GetActionAccessRights(String actionName, String controllerName, Boolean isHttpGet)
at Flexera.Web.Core.AccessRightHelper.HasModifyAccessToAction(String actionName, String controllerName, Object model, Boolean isHttpGet)
at Flexera.Web.Core.Display.WebViewBase`2.get_IsReadOnly()
at Flexera.Web.Core.Models.DynamicModelMetadataProvider.AugmentModelMetadata(ModelMetadata metadata, Object model, IWebView view)
at Flexera.Web.Core.Models.DynamicModelMetadataProvider.GetMetadataForProperties(Object model, Type modelType)
at System.Web.Mvc.ModelMetadata.get_Properties()
at System.Web.Mvc.ModelMetadata.FromStringExpression(String expression, ViewDataDictionary viewData, ModelMetadataProvider metadataProvider)
at System.Web.Mvc.HtmlHelper.<.ctor>b__0(String name, ModelMetadata metadata)
at System.Web.Mvc.HtmlHelper.GetUnobtrusiveValidationAttributes(String name, ModelMetadata metadata)
at System.Web.Mvc.Html.InputExtensions.InputHelper(HtmlHelper htmlHelper, InputType inputType, ModelMetadata metadata, String name, Object value, Boolean useViewData, Boolean isChecked, Boolean setId, Boolean isExplicitValue, String format, IDictionary`2 htmlAttributes)
at System.Web.Mvc.Html.InputExtensions.TextBox(HtmlHelper htmlHelper, String name, Object value, Object htmlAttributes)
at ASP._Page_Views_Errors__Layout_cshtml.Execute() in X:\Program Files (x86)\Flexera Software\FlexNet Manager Platform\WebUI\Views\Errors\_Layout.cshtml:line 49
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at Flexera.Web.Core.Display.WebViewBase`2.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.WebPages.WebPageBase.<>c__DisplayClass7.<RenderPageCore>b__6(TextWriter writer)
at System.Web.WebPages.WebPageBase.Write(HelperResult result)
at System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body)
at System.Web.WebPages.WebPageBase.PopContext()
at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
at Flexera.Web.Presentation.Controllers.ControllerWithLogic.HandleUnknownAction(String actionName)
at System.Web.Mvc.Controller.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

[mfranz]

Hi,

I cannot see anything obvious, you should open a support case for this issue.

Best regards,

Markward

[sreeramyenuga]

Hi,

Increase the Time out session. Now it's working fine as expected.

Thanks,

SREERAMA YENUGA