Read-Only Databases And Single-User Mode

David Fowler notes an old bug in SQL Server 2012 and 2014 which bit him recently:

Here’s a strange one that I’ve recently come across.  I had a customer report that their log shipping restore jobs were chock a block of errors.  Now, the logs seem to have been restoring just fine but before every restore attempt, the job is reporting the error,

Error: Failed to update database “DATABASE NAME” because the database is read-only.

Unfortunately I haven’t got any direct access to the server but their logshipping is setup to disconnect users before and leave the database in standby after.  After a bit of to-ing and fro-ing, I asked the customer to send me a trace file covering the period that the restore job ran.

Read on for the details and keep those servers patched.

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