Symptoms
Consider the following scenario:
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You use the AlwaysOn availability groups feature in Microsoft SQL Server 2012, 2014, or 2016.
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You back up a transaction log of a database while there are transaction log activities.
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The transaction log activities stop after the backup completed.
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You remove the database from the AlwaysOn availability group.
In this scenario, when you add the database back to the AlwaysOn availability group, error 1478 occurs.
Resolution
The issue was first fixed in the following cumulative update of SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. We recommend that you download and install the latest cumulative updates for SQL Server:
Workaround
To work around this issue, create a transaction log backup on the primary replica, restore the log backup on the secondary replica with no recovery, and then rejoin the secondary replica to the AlwaysOn availability group.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology Microsoft uses to describe software updates.
