Facebook, Inc.

Bhushan Mandhani

Namit Jain

Raghotham Murthy

Sambavi Muthukrishnan

Raghotham Sathyanarayana Murthy

Some embodiments include a plurality of virtual data warehouses having table link capabilities that are built on top of a data center (e.g., running Apache Hive). Each virtual data warehouse can be modeled as a database and manage data in forms of database tables. The virtual data warehouse can include links which import tables from other virtual data warehouses by reference. Each link may contain partition metadata for the table partitions by dates of the source table and retention metadata to declare the needed retention time period for the partitions of the source table. The links can be dynamic and update when the corresponding source table receives new partitions or drops partitions. When a virtual data warehouse is migrated to another data center, the system can retain necessary table partitions on the current data center based on the partition and retention metadata of the links.

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Union Ciy, CA, United States of America

Bhushan Mandhani