Abstract: Certain aspects of the present disclosure provide techniques for efficient data parity. Embodiments include receiving, by a first data consuming component, from a publication service, a plurality of database change records indicating changes to an underlying data source. Embodiments include updating, by the first data consuming component, a secondary data store based on the plurality of database change records. Embodiments include selecting a sample subset of the plurality of database change records based on one or more conditions. Embodiments include, for each respective database change record in the sample subset that has already been consumed by a second data consuming component that updated a primary data store based on one or more database change records: comparing the respective database change record to first data from the primary data store that corresponds to the respective database change record and making a parity determination based on the comparing.

Abstract: One embodiment provides a method for identifying similar objects by performing document attribute comparisons, the method including: receiving a reference document, wherein the reference document corresponds to an object and comprises a plurality of attributes of the object; receiving a request for a similarity comparison, wherein the request provides an indication of similarity attributes to be used in the similarity comparison; comparing the reference document to each of a plurality of documents corresponding to other objects; generating a document similarity score for each of the plurality of documents, wherein the document similarity score is generated based upon an aggregation of similarity attribute scores calculated for each of the similarity attributes; and providing at least one of the plurality of documents with an indication of a similarity. Other aspects are described and claimed.