Patent attributes
Methods, systems, and computer-readable media for replication event ordering using an external data store are disclosed. Events are received for a key in a source data store, including a deletion event and modification events. In an external data store, a record of the deletion event is stored that includes a sequence identifier of the deletion event in a sequence. Sequence identifiers are assigned to the modification events. Some of the sequence identifiers are earlier than the deletion event in the sequence, and others of the sequence identifiers are later than the deletion event in the sequence and are assigned based at least in part on the record of the deletion event in the external data store. Individual events are replicated or not replicated to the destination data store based at least in part on their sequence identifiers.
