Abstract: Disclosed are systems, apparatus, and methods for propagating data changes in a distributed computing system from source components to target components. In accordance with various embodiments, one or more producer components of a data-conveyor system may detect changes to data records in one or more source components, and store backlog entries responsive to detecting the changes, wherein these backlog entries do not include contents of the data record. One or more consumer components of the data-conveyor system may retrieve updated data of changed data records based on the backlog entries and provide the updated data to one or more target component(s).