What are the agents used for transactional replication?
Question – How many Replication Agents are involved in SQL Server Transactional Replication?
- Snapshot Agent.
- Log Reader Agent.
- Distribution Agent.
- Queue Reader Agent.
How do I monitor transactional replication in SQL Server?
Connect to the Publisher in Management Studio, and then expand the server node. Expand the Replication folder, and then expand the Local Publications folder. Expand the publication for the subscription you want to monitor. Right-click the subscription, and then click View Synchronization Status.
How can transactional replication be dropped?
You will need to go to the publisher, expand the replication folder, right click on each publication, and delete the publication. That will prompt you to connect to the subscriber, and remove the subscription components there.
Why is primary key needed in transactional replication?
The reason is in the subscriber, rows are updated/deleted one-by-one using primary key. For example: If you delete 100 rows in the publisher using a single DELETE statement, in the subscriber 100 DELETE statements would be executed.
Are tables locked during generating the snapshot?
SQL Server does not obtain any kind of locks at all when creating a snapshot, it literally is a snapshot of the database at a certain point in time and creating snapshot does not interfere with any transactions.
Is transactional replication bidirectional?
Bidirectional transactional replication is a specific transactional replication topology that allows two servers to exchange changes with each other: each server publishes data and then subscribes to a publication with the same data from the other server.
How do you know if replication is working?
How do I check my AD replication status? Running the repadmin /showrepl can help you view the replication status. If you would like an overall replication health summary, the command repadmin /replsummary should help.
How do you know if a table is in replication?
To view the replicated tables in Microsoft SQL Server:
- From the Windows Start menu, go to All Programs > Microsoft SQL Server > Microsoft SQL Server Management Studio.
- In the Object Explorer, find the Microsoft SQL Server target computer you are working with.
Is SQL Server replication synchronous?
Once the secondary replica is available and connects with the Primary replica, it again starts Synchronous data commit. SQL Server maintains the log entries until the time secondary replica becomes available. Once it reconnects with Secondary replica, it sends all log blocks as per the usual process.