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AssigneeDropbox, Inc.
InventorsDaniel Tahara, Mehant Baid, Robert Escriva, Mihnea Cezar Giurgea
Estimating the term…
Techniques are provided for a linearizable primary-secondary database system that replicates database data with eventual consistency. The techniques include obtaining a logical clock value of a logical clock that orders transactions committed at a primary database system that includes a primary database. The logical clock value is obtained after a write transaction is committed at the primary database system and while processing a read request. The logical clock value is used to determine whether a secondary database is in a consistent replication state corresponding to the logical clock value with respect to the primary database. The read request is maintained in a linger state while the secondary database is not yet in the consistent replication state. The read request exits the linger state and is allowed to be processed against the secondary database after the secondary database has reached the consistent replication state.
A method for providing a linearizable primary-secondary database system to a client even though database data is replicated with eventual consistency, the method performed by a computing system comprising one or more processors and storage media, the method comprising:
One or more non-transitory computer media storing one or more programs for providing a linearizable primary-secondary database system to a client even though database data is replicated with eventual consistency, the one or more programs for execution by a computing system comprising one or more processors and storage media, the one or more programs comprising instructions configured for:
A computing system comprising:
Dependencies are inferred from the claim text.