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How is a snapshot generated for Merge Replication?
For merge replication, a snapshot is generated every time the Snapshot Agent runs. For transactional replication, snapshot generation depends on the setting of the publication property immediate_sync.
How to restore a replicating DFSR snapshot?
Using any virtualization product, you create a guest snapshot of a server replicating files with DFSR. You later restore that snapshot, returning the server to an earlier point in time. You notice the following behaviors on the restored server:
Why does the DFS Replication Service stop replication?
The DFS Replication service stopped replication on volume C:. This failure can occur because the disk is full, the disk is failing, or a quota limit has been reached. This can also occur if the DFS Replication service encountered errors while attempting to stage files for a replicated folder on this volume.
How does a distribution agent apply a snapshot?
The Distribution Agent (for snapshot or transactional replication) or Merge Agent (for merge replication) transfers the snapshot and applies the schema and data files to the subscription database on the Subscriber during the initial synchronization.
What kind of agent does SQL Server snapshot replication use?
The SQL Server Snapshot Agent always generates the snapshot files, but the agent that delivers the files differs depending on the type of replication being used. Snapshot replication and transactional replication use the Distribution Agent to deliver the files, whereas merge replication uses the SQL Server Merge Agent.
Where are snapshot files stored in SQL Server?
The Snapshot Agent prepares snapshot files containing the schema and data of published tables and database objects, stores the files in the snapshot folder for the Publisher, and records tracking information in the distribution database on the Distributor.
How is the snapshot agent generated in msrepl?
The snapshot is generated as a set of bulk copy program (BCP) files. For snapshot and transactional publications, the Snapshot Agent appends rows to the MSrepl_commands and MSrepl_transactions tables in the distribution database.
What is the difference between transactional replication and snapshot replication?
Snapshot replication and transactional replication use the Distribution Agent to deliver the files, whereas merge replication uses the SQL Server Merge Agent. The Snapshot Agent runs at the Distributor.
What happens if there is no snapshot of merge agent?
If the Distribution Agent or Merge Agent is configured to run on a schedule or on-demand, and there is no snapshot available when the agent runs, the agent will shut down with a message stating that a snapshot is not yet available. You must run the agent again to apply the snapshot after the Snapshot Agent has completed.