| 摘要 |
<p>A distributed databases upgrade method, an upgrade processing device and an upgrade controlling device are provided. The distributed databases comprise at least two database equipments, and the upgrade processing device is disposed on each of the database equipments; and the upgrade processing device receives and stores the first database script sent by the upgrade controlling device (101), and creates the new data object according to the first database script and upgrades the database of the database equipment (102); the upgrade processing device switches the currently used database script from the second database script to the first database script after the update is successful (103); the second database script is the database script used to process the data access request before the upgrade is successful. The present invention can still use the database script pre-upgraded to process the data access request during the upgrade so as to implement the service without interruption during the upgrade and to ensure the data access quality.</p> |
