recurring application shutdown issue on umbraco 753 - Using Umbraco and getting started

Malith Jayawardana 6 posts 88 karma points

Oct 04, 2016 @ 15:01

Recurring application shutdown issue on Umbraco 7.5.3

Hi guys,

We are faced with an issue where quite a few application shutdowns are being encountered on Umbraco v7.5.3. Does anyone have any similar experience and if so is there a way to fix this?

The setup is as follows:

Umbraco V7.5.3 (Nuget installed) Windows Server 2012 R2 Standard Database: MSSQL Server 2014

The Umbraco installation is used to host multiple domains. Two domains are set up on two nodes using Culture and Hostnames. One site is set up in IIS for Umbraco, and it has it's own application pool. Site bindings in IIS are used to point multiple domains to the Umbraco instance, and Culture and Hostnames are used to resolve which node to load.

The problem:

Loading one site initially takes about 8 seconds, after that if we were to refresh the page the site loads up fast in under one second. Then when we try to load a different domain on another node the load time is again about 8 seconds. It appears that loading a different node causes a lag every single time.

In the logs we can see that the following is happening :

Application shutdown. Details: HostingEnvironment

_shutDownMessage=HostingEnvironment initiated shutdown
HostingEnvironment caused shutdown

_shutDownStack=   at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
   at System.Environment.get_StackTrace()
   at System.Web.Hosting.HostingEnvironment.InitiateShutdownInternal()
   at System.Web.Hosting.PipelineRuntime.StopProcessing()

There is also the following but not as regularly as the above.

Application shutdown. Details: MaxRecompilationsReached

_shutDownMessage=Recompilation limit of 15 reached
HostingEnvironment initiated shutdown
HostingEnvironment caused shutdown

_shutDownStack=   at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
   at System.Environment.get_StackTrace()
   at System.Web.Hosting.HostingEnvironment.InitiateShutdownInternal()
   at System.Web.HttpRuntime.ShutdownAppDomain(String stackTrace)
   at System.Web.Compilation.DiskBuildResultCache.ShutdownCallBack(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()

Also there is an error from UmbracoExamine.DataServices.UmbracoLogService that keeps showing up.

Provider=InternalMemberIndexer, NodeId=-1
System.Exception: Cannot index queue items, the index is currently locked,, IndexSet: InternalMemberIndexSet

There is a similar issue regarding maximum compilations here: https://our.umbraco.org/forum/umbraco-7/using-umbraco-7/73634-umbraco-using-a-lot-of-cpu

The following pages seem to suggest Windows updates may be the cause.

https://our.umbraco.org/forum/core/general/63671-Application-shutdown-Reason-ConfigurationChange

https://our.umbraco.org/forum/getting-started/installing-umbraco/72398-hostingenvironment-initiated-shutdown#comment-232499

According to the above, the following Windows updates have been known to cause issues:

KB3007507 (This was never installed in the first place)

KB3000850 (Removed from server but didn't make a difference)

The following update is a fix that had worked on certain instances:

KB3052480 (Was always installed on the server in our case)

We are starting to run out of ideas. Any feedback is much appreciated!

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Recurring application shutdown issue on Umbraco 7.5.3