UI pages cause SCOM Console to close with unhandled exception (crash)

[ChrisHeitkamp]

Symptom:

Open the "Discover Community Packs" view causes the SCOM Console to crash with an unhanded exception.

Description:

Before the crash a pop up screen shows up with:
"An error occurred while sending the request"
The crash is reproducible.

Crash details are given below.
Note that the Console on this machine does not have internet access, hence a prerequisite is not met. Still the console crashing is kind of unexpected...

SCOM Version: 2012 R2, UR12
MP Version: 1.0.2.0

Exception Details:

just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The remote name could not be resolved: 'www.mpcatalog.net'
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at Community.ManagementPackCatalog.UI.Models.GitHubRepository.<PopulateClassFieldsFromResources>d__11.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at Community.ManagementPackCatalog.UI.Models.GitHubRepository.<PopulateDataFromRepository>d__9.MoveNext() --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) at System.Threading.Tasks.Task.Wait() at Community.ManagementPackCatalog.UI.DiscoverCatalogPacks.PopulateCommunityManagementPackListFromGitHub(GitHubPackDetail[] packsToDisplay) at Community.ManagementPackCatalog.UI.DiscoverCatalogPacks..ctor() --- End of inner exception stack trace --- at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) at System.Activator.CreateInstance(Type type, Boolean nonPublic) at System.Activator.CreateInstance(Type type) at Microsoft.EnterpriseManagement.ConsoleFramework.Wpf.GenericWpfViewConstructor.CreateView(Object parent, Type viewType, IViewParameters viewParameters) at Microsoft.EnterpriseManagement.ConsoleFramework.ViewConstructor.BeginShow(ShowViewContext showViewContext, AsyncCallback callback, Object state) at Microsoft.EnterpriseManagement.ConsoleFramework.Wpf.GenericWpfViewConstructor.CreateNonRecyclableView(ShowViewContext showViewContext) at Microsoft.EnterpriseManagement.ConsoleFramework.Wpf.GenericWpfViewConstructor.CreateAndShowViewCore(ShowViewContext showViewContext) at Microsoft.EnterpriseManagement.ConsoleFramework.Wpf.GenericWpfViewConstructor.ShowViewOperation.Begin(ShowViewContext showViewContext) at Microsoft.EnterpriseManagement.ConsoleFramework.Wpf.GenericWpfViewConstructor.BeginShow(ShowViewContext showViewContext, AsyncCallback callback, Object state) at Microsoft.EnterpriseManagement.ConsoleFramework.Wpf.ConsoleViewDisplayService.OpenViewJob(Object sender, ConsoleJobEventArgs args) at Microsoft.EnterpriseManagement.Mom.Internal.UI.Console.ConsoleJobExceptionHandler.ExecuteJob(IComponent component, EventHandler1 job, Object sender, ConsoleJobEventArgs args)
at Microsoft.EnterpriseManagement.ConsoleFramework.ConsoleJobsService.RunJob(ConsoleJobDescription jobDescription)
at Microsoft.EnterpriseManagement.ConsoleFramework.WindowJobsService.RunJob(ConsoleJobDescription jobDescription)
at Microsoft.EnterpriseManagement.ConsoleFramework.WindowJobsService.RunJob(IComponent jobOwner, EventHandler1 jobMethod, EventHandler1 errorHandler, Object[] arguments)
at Microsoft.EnterpriseManagement.ConsoleFramework.WindowJobsService.RunJob(IComponent jobOwner, EventHandler1 jobMethod, Object[] arguments) at Microsoft.EnterpriseManagement.ConsoleFramework.WindowJobsService.RunJob(EventHandler1 jobMethod, Object[] arguments)
at Microsoft.EnterpriseManagement.ConsoleFramework.Wpf.ConsoleViewDisplayService.OpenView(String assemblyName, String typeName, String target, String item, String criteria, Object[] arguments)
at Microsoft.EnterpriseManagement.Monitoring.Console.Common.ConsoleDisplayWrapper.OpenView(String assemblyName, String typeName, String target, String item, String criteria, Object[] arguments)
at Microsoft.EnterpriseManagement.Mom.Internal.UI.Console.MomViewsDisplay.OpenMomView(IComponent component, ManagementPackView view, String target, String item)
at Microsoft.EnterpriseManagement.Mom.Internal.UI.Administration.AdminTreeView.LaunchView(AdminTreeDataNode viewNode)
at Microsoft.EnterpriseManagement.Mom.Internal.UI.Administration.AdminTreeView.HandleNodeSelected(Object sender, TreeViewEventArgs e)
at System.Windows.Forms.TreeView.OnAfterSelect(TreeViewEventArgs e)
at System.Windows.Forms.TreeView.TvnSelected(NMTREEVIEW* nmtv)
at System.Windows.Forms.TreeView.WmNotify(Message& m)
at System.Windows.Forms.TreeView.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

....
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

[clarkd]

It looks like your SCOM server is struggling to access/resolve www.mpcatalog.net - do you have a firewall in place?

Are you able to browse to www.mpcatalog.net/CatalogRepo from your SCOM server? It should forward you to a GitHub page which will display an error but you should see the URL change.

[P2P-Nathan]

@ChrisHeitkamp , sorry for the delay on getting this fix in place. A new build (detailed below) has been created that has more robust error handling, it should much more gracefully handle the lack of an internet connection. Links to the beta version of the build are at the bottom of the comment.

The test build has been created that allows for the setting of a proxy via 3 registry keys. Additionally it allows for a direct URL to be used for connection to GitHub, without the use of the MPCatalog.net redirect.

The keys can be seen in my branch at: https://github.com/MPCatalog/scom-community-catalog-ui/blob/work/1.0.2.x-bug-fixes/Community.ManagementPackCatalog.UI/Models/GitHubRepository.cs#L114

Proxy configuration has a key for each of the following:

• proxyAddress
• proxyUserName
• proxyPassword

Repo URL configuration has a single key of:

• GitHubRepoBase

The updated version of the pack can be found here:
Community.ManagementPackCatalog.zip

Both registry configuration examples are available here:
Registry Key Configurations.zip

[P2P-Nathan]

The beta release for this build is at the below url, the testing I have performed has passed, but I do not have an actual proxy environment and am unable to do a full functionality test.

1.0.2.0 beta release

[Juanito99]

hi,

tested with 1.0.2.1 - no success.

Same error as before. - No Exception, console keeps functioning.

This is my registry setting. - Correct?

Ruben

[P2P-Nathan]

Thank you for testing, I do not have a proxy in my environment and was not able to test as well as I would have liked. I will look through the code again and may need to find a sample proxy server to test with. -Nathan

…

On Wed, Nov 29, 2017 at 2:33 AM, Ruben Zimmermann ***@***.***> wrote: hi, tested with 1.0.2.1 - no success. [image: image] <https://user-images.githubusercontent.com/11002556/33365327-d3dc8412-d522-11e7-9275-cfd76ad2a2b8.png> Same error as before. - No Exception, console keeps functioning. This is my registry setting. - Correct? [image: image] <https://user-images.githubusercontent.com/11002556/33365288-b58b533a-d522-11e7-9010-2fb1bbed4b6a.png> Ruben — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <#2 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ARCe2nVbtobmFtl7L3EhWCELA1xR5b14ks5s7RbJgaJpZM4QESgC> .

[Juanito99]

Another option could be adding debug code to your solution. I am happy to run it and provide trace information. Let me know :-)

[P2P-Nathan]

The code is instrumented with ETW logging, it can be viewed with perfview, as well as a custom tool I've written to make it quicker to trace. I'm out of the office for the night but I'll make sure tracing is in all the necessary places tomorrow and send over some better details. Thanks, Nathan

…

Sent from my phone On Nov 29, 2017 7:14 PM, "Ruben Zimmermann" <notifications@github.com> wrote:

Another option could be adding debug code to your solution. I am happy to run it and provide trace information. Let me know :-) -- Sent from my Android phone with GMX Mail. Please excuse my brevity.On 11/30/17, 6:12 AM P2P-Nathan ***@***.***> wrote: Thank you for testing, I do not have a proxy in my environment and was not able to test as well as I would have liked. I will look through the code again and may need to find a sample proxy server to test with. -Nathan On Wed, Nov 29, 2017 at 2:33 AM, Ruben Zimmermann < ***@***.***> wrote: > hi, > > tested with 1.0.2.1 - no success. > [image: image] > <https://user-images.githubusercontent.com/11002556/33365327-d3dc8412- d522-11e7-9275-cfd76ad2a2b8.png> > > Same error as before. - No Exception, console keeps functioning. > > This is my registry setting. - Correct? > [image: image] > <https://user-images.githubusercontent.com/11002556/33365288-b58b533a- d522-11e7-9010-2fb1bbed4b6a.png> > > Ruben > > — > You are receiving this because you were assigned. > Reply to this email directly, view it on GitHub > <https://github.com/MPCatalog/scom-community-catalog-ui/ issues/2#issuecomment-347788440>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/ ARCe2nVbtobmFtl7L3EhWCELA1xR5b14ks5s7RbJgaJpZM4QESgC> > . > —You are receiving this because you commented.Reply to this email directly, view it on GitHub, or mute the thread. {"api_version":"1.0","publisher":{"api_key":" 05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity": {"external_key":"github/MPCatalog/scom-community-catalog-ui","title":" MPCatalog/scom-community-catalog-ui","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/ 143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png"," avatar_image_url":"https://cloud.githubusercontent.com/ assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png ","action":{"name":"Open in GitHub","url":"https://github. com/MPCatalog/scom-community-catalog-ui"}},"updates":{" ***@***.*** in #2: Thank you for testing,\nI do not have a proxy in my environment and was not able to test as well as\nI would have liked. I will look through the code again and may need to\nfind a sample proxy server to test with.\n-Nathan\n\nOn Wed, Nov 29, 2017 at 2:33 AM, Ruben Zimmermann ***@***.***\u003e\nwrote:\n\n\u003e hi,\n\u003e\n\u003e tested with 1.0.2.1 - no success.\n\u003e [image: image]\n\u003e \u003chttps://user-images.githubusercontent.com/ 11002556/33365327-d3dc8412-d522-11e7-9275-cfd76ad2a2b8. png\u003e\n\u003e\n\u003e <http://user-images.githubusercontent.com/11002556/33365327-d3dc8412-d522-11e7-9275-cfd76ad2a2b8.png%5Cu003e%5Cn%5Cu003e%5Cn%5Cu003e> Same error as before. - No Exception, console keeps functioning.\n\u003e\n\u003e This is my registry setting. - Correct?\n\u003e [image: image]\n\u003e \u003chttps://user-images. githubusercontent.com/11002556/33365288-b58b533a- d522-11e7-9010-2fb1bbed4b6a.png\u003e\n\u003e\n\u003e <http://user-images.githubusercontent.com/11002556/33365288-b58b533a-d522-11e7-9010-2fb1bbed4b6a.png%5Cu003e%5Cn%5Cu003e%5Cn%5Cu003e> Ruben\n\u003e\n\u003e —\n\u003e You are receiving this because you were assigned.\n\u003e Reply to this email directly, view it on GitHub\n\u003e \u003chttps://github.com/MPCatalog/scom-community-catalog-ui/issues/2# issuecomment-347788440\u003e,\n\u003e <http://github.com/MPCatalog/scom-community-catalog-ui/issues/2#issuecomment-347788440%5Cu003e,%5Cn%5Cu003e> or mute the thread\n\u003e \u003chttps://github.com/ notifications/unsubscribe-auth/ARCe2nVbtobmFtl7L3EhWCELA1xR5b 14ks5s7RbJgaJpZM4QESgC\u003e\n\u003e <http://github.com/notifications/unsubscribe-auth/ARCe2nVbtobmFtl7L3EhWCELA1xR5b14ks5s7RbJgaJpZM4QESgC%5Cu003e%5Cn%5Cu003e> .\n\u003e\n"}],"action":{"name":"View Issue","url":"https://github. com/MPCatalog/scom-community-catalog-ui/issues/2#issuecomment-348014271"}}} — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <#2 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ARCe2jywZQIqLRCHqA0Bl40qOtFwzd-sks5s7gFngaJpZM4QESgC> .

[Juanito99]

Sure, no problem. - Have a good rest :-)

[ronaldbckl]

Just i tip for others. I just found out i had the same errors while the sites mentioned are reachable.
It turned out that this pack will not work if you run your scom console from a non-managementserver. From a managementserver it works ok.