| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a node leaving processing system for allowing nodes composing a cluster to leave while guaranteeing consistency of data in the cluster.SOLUTION: A node leaving processing system 100 sets a flag indicating whether each of a plurality of nodes 1 in the node leaving processing system 100 is a leaving target node or not in a node identifier management table included in the node. Each of nodes 1 composing a cluster, when receiving a node leaving start message from system maintenance means, sets a flag for a leaving target node 1. Each node 1 receives a data transfer request from the system maintenance means, and while referring to the node identifier management table in which the flag is set, detects data to be transferred (data transfer target data) by regarding that the leaving target node 1 is made to leave, and executes data transfer.</p> |
