METHOD, NODE AND SYSTEM FOR MANAGING DATA FOR DATABASE CLUSTER Russian patent published in 2018 - IPC G06F17/30 

FIELD: information technology.

SUBSTANCE: invention relates to data management tools for a database cluster. System includes a first two-port SSD, a second two-port SSD, a first node, a second node and a third node where the first two-port SSD is connected to the first node and the second node and the second two-port SSD is connected to the second node and the third node; and the first node writes the transaction log to the first two-port SSD when the first node fails, the second node receives the transaction log from the first two-port SSD and, in accordance with the transaction log, operates the data that is stored in the first node, the second node or the third node can use the two-port SSD to read the log information of the failed node, and replace the first node to provide external maintenance, thereby increasing the cluster recovery speed and improving system availability.

EFFECT: technical result consists in increasing the reliability of operation and the speed of the control system.

18 cl, 8 dwg