title: IIS randomly Restarts Dotnet core apps
body: <p>So in production, all my dotnet core apps hosted in IIS 8 (Windows server 2012 R2) restarts at random times during the day. About once a day. Never at the same time - random times. I've got many users hitting this in production, as well as scheduled services failing, etc... In the end this restart causes donwtime (my main service takes about 5 minutes to start up, since it's getting hammered with requests, etc) everyday, which is obviously unacceptable. </p>
  
  <p>In the event viewer, there is nothing preceding the restarts - there's only the one-liner for each service:</p>
  
  <p>Information - Timestamp - IIS AspNetCore Module - 1001 - None</p>
  
  <p>With details: Process '9652' started successfully and is listening on port '25405'.</p>
  
  <p>For every single dotnet core app (dotnet 1.0.0 - netcoreapp1.0) I have. Sometimes the application fails after first try, probably because its getting too many hits, or something, which just makes the downtime longer. </p>
  
  <p>There is no IIS or dotnet crash dumps (I enabled crash dumps through WER). There's nothing of help in the application logs, nothing in IIS logs... I switched on the STDOUT logs as well - nothing of help around time of restart.</p>
  
  <p>Version of dotnet core on the server: .NET Core 1.0.1 - SDK 1.0.0 Preview 2-003133 (x64) - not that I think dotnet's the culprit, since it's IIS doing the restart... </p>
  
  <p>What can I do to find out why my apps are crashing? </p>