Data propagation in a multi-shard database system

Details Data propagation in a multi-shard database system Data propagation in a multi-shard database system

2008-06-04

2011-10-11

To, Baoquoc (Department: 2162)

Data processing: database and file management or data structures

File or database maintenance

Synchronization

Reexamination Certificate

active

08037024

ABSTRACT:
Methods, systems and apparatus, including computer program products, for propagating data across shards of a database system are described. According to one method, a first request that includes instructions to place a second request in a queue of a second shard is placed in a queue of a first database shard, and the change is committed to the records of the first shard. A queue processor polling the queue fetches and dispatches the first request, placing the second request in a queue of a second database shard. The second request includes instructions for making the change to the second shard. A queue processor of the second database shard polls the queue of the second database, fetches the second request, and dispatches it to make the change on the second database shard.

REFERENCES:
patent: 6710786 (2004-03-01), Jacobs et al.
patent: 2007/0180075 (2007-08-01), Chasman et al.
patent: 2008/0313238 (2008-12-01), McKenney et al.

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