We have a mirror MS SQL Server. We drop and re-create database snapshots on this server on every 2 hours. These snapshots are read-only because of the nature of the snapshot technology, so they can be used only for reporting, and that’s what we use them for.
Sometimes, dropping these snapshots takes a long time (such as 2.5 hours). Here’s a sample:
I wonder how and why does Ms SQL Server rollback transactions on a read-only/snapshot database! Even we assume that server is rolling back the internal transactions on tempdb, how could it take so long?