Well-known transactions in data replication

A method for specifying the originator of a data change in a peer-to-peer replication system in which data changes may be propagated among multiple nodes, the method comprising:

• receiving a transaction at a destination node of the peer-to-peer replication system, the transaction containing a data change that was made to data on a source node of the peer-to-peer replication system, the data change being associated with originator information that defines the source node as the originator of the data change;
• the destination node replicating the data change to the data stored on the destination node, wherein all data changes to the data stored on the destination node are recorded in a log of data changes that is used to determine the data changes to be replicated out to other nodes of the peer-to-peer replication system;
• upon replicating the data change, the destination node storing the originator information with the data change recorded to the log;
• and
• upon initiating a replication event to replicate data changes at the destination node to another node of the peer-to-peer replication system, accessing the log to determine that the data change received from the source node did not originate at the destination node, and in response, not including the data change received from the source node in the data changes that are replicated to the other node.

A computer storage medium storing computer executable instructions which when executed by the processor perform a method for specifying the originator of a data change in a peer-to-peer replication system in which data changes may be propagated among multiple nodes, the method comprising:

• receiving a transaction at a destination node of the peer-to-peer replication system, the transaction containing a data change that was made to data on a source node of the peer-to-peer replication system, the data change being associated with originator information that defines the source node as the originator of the data change;
• the destination node replicating the data change to the data stored on the destination node, wherein all data changes to the data stored on the destination node are recorded in a log of data changes that is used to determine the data changes to be replicated out to other nodes of the peer-to-peer replication system;
• upon replicating the data change, the destination node storing the originator information with the data change recorded to the log;
• and
• upon initiating a replication event to replicate data changes at the destination node to another node of the peer-to-peer replication system, accessing the log to determine that the data change received from the source node did not originate at the destination node, and in response, not including the data change received from the source node in the data changes that are replicated to the other node.