公开(公告)号：US20190018865A1

公开(公告)日：2019-01-17

申请号：US15651823

申请日：2017-07-17

Applicant: VMware, Inc.

Inventor： Antoni IVANOV ,  Denitsa GENCHEVA ,  Marin NOZHCHEV

IPC: G06F17/30

CPC classification number: G06F16/212 ,  G06F16/2343 ,  G06F16/2379 ,  G06F16/258

Abstract: Embodiments of the present disclosure relate to techniques for using distributed locks (e.g., among a plurality of database management services) for accessing a database to ensure data consistency in the database during concurrent continuous data processing and schema or data administration of the database. In particular, certain embodiments relate to not holding an exclusive lock of the database for all operations of an extract, transform, load (ETL) process to load data from a data source into the database. Further, certain embodiments relate to resolving schema changes that occur to a database schema of the database in the middle of the ETL process when the exclusive lock is not held.