On one of our SQL Server witness servers (This is part of our Database Mirroring setup for SQL Server 2008 R2) we have just started getting the below event in the windows event log.
The description for Event ID 17052 from source MSSQLSERVER cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
Severity: 16 Error:0, OS: 0 [Microsoft][SQL Server Native Client 10.0]Unable to complete login process due to delay in opening server connection
the message resource is present but the message is not found in the string/message table
These events are happening at varying times and so far we have had 22 errors starting on 27/08/2015. I have looked through our change log and I can't see any changes for that day that look relevant.
I have done some investigation and found the following article. This looks at the xml information in the below table; however none of the events in the result set correspond to the times of any of the failures.
SELECT CAST(record as xml) as record FROM sys.dm_os_ring_buffers WHERE ring_buffer_type = 'RING_BUFFER_CONNECTIVITY'
To make matters worse the errors seem sporadic with no determinable pattern.
How can I find out what is causing the above events?
Microsoft SQL Server 2008 R2 (SP1) - 10.50.2500.0 (X64) Jun 17 2011 00:54:03 Copyright (c) Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1) (Hypervisor)