Backup and restore from a distributed database using consistent database snapshots

摘要

Techniques are disclosed for backup and restore in a distributed database with consistent database snapshots. In particular, a distributed database system constructed in accordance with embodiments of the present disclosure collectively defines a database that does not have any single point of failure and includes a plurality of interconnected database nodes that may be " visible " It's possible. During the execution of these transactions, the distributed database system declares snapshots that cause the distributed database system to logically freeze a consistent and complete copy of the state of the database at the time the transaction completes, when the clients commit the transaction I can do it. These snapshots allow clients to execute so-called " point-in-time " queries on these past states to return a result set that is essentially a reconstructed version of the database from a particular point in time.;