| 主权项 |
1. A method of backing up data stored in a distributed database system, comprising:
configuring a backup utility in a backup server with information regarding locations of data stored in the distributed database system having a plurality of nodes, wherein the distributed database system is configured to respond to a database query by gathering data from multiple ones of the plurality of nodes and providing the gathered data in an answer set responsive to the database query, wherein gathering the data comprises communication of a subset of the data between at least two of the multiple nodes; receiving, by the backup utility, a request for backup storage of a data portion; in response to the request, establishing, between the backup utility and respective ones of the plurality of nodes of the distributed database system, distinct corresponding sessions; retrieving, by the backup utility based on the information regarding locations of data stored in the distributed database system, the data portion from the plurality of nodes for processing the request, wherein retrieving the data portion comprises retrieving the data portion for processing the request from the plurality of nodes in respective ones of the distinct sessions; and communicating, by the backup utility, the retrieved data portion to a backup storage subsystem separate from the distributed database system, the communicating causing storing of the retrieved data portion at the backup storage subsystem to provide a backup copy of the data portion. |
