SSRS 2017 - RSManagement log - intermittent error

• doshea

  Mr or Mrs. 500

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  March 21, 2019 at 10:05 am

  #377783

  We have installed SQL Server Reporting Services 2017 and have it configured to run
  - With custom forms based authentication
  - With HTTPS
  The Report Portal runs and allows us to view data sources, upload reports etc. Our Reporting application is able to successfully connect over HTTPS and run reports.

  However , every so often we see the following error appear under C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\LogFiles in the RSManagement*.log files:

  2019-03-20 04:58:41.3187|ERROR|4|Unhandled error in the Web API. Exception: System.Net.Http.HttpRequestException: Error while copying content to a stream. ---> System.IO.IOException ---> System.Net.HttpListenerException: The I/O operation has been aborted because of either a thread exit or an application request
  2019-03-20 04:58:41.3187|INFO|4|ZZZ\username ::1: GET /api/v1.0/ManagementState - 0:00:00.0289613
          Connection dropped| RequestID = s_9f4b24ba-0a37-4207-a36e-4f862b126729 System.Threading.Tasks.TaskCanceledException: A task was canceled.
  
  We have enabled verbose logging via the C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\ReportServer\bin\ReportingServicesService.exe.config file and can see successful connections being made to /api/v1.0/ManagementState every 10 seconds,  so it would appear that the above error is occurring infrequently.

  Has anyone else seen the above error and had any success in resolving it?

  Thanks in advance