Cluster online capacity expansion method, system and device and storage medium

• Main Authors: XIA WEIWEI, WEN JUNJIE, CAO YANCHAO, JIANG SHIWEN
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a cluster online capacity expansion method, system and device and a storage medium. The method comprises the steps of determining a cluster number of an original cluster of each piece of data; if the number of current expansion iterations is smaller than the expansion record length, determining the number of newly added clusters, and calculating a first hash value of each data based on the data primary key value of each data, the number of the newly added clusters and the number of the original clusters; if the first hash value is smaller than the number of the original clusters, determining cluster numbers of the original clusters corresponding to the data; if the first hash value is not smaller than the number of the original clusters, calculating a cluster number of a newly-added cluster corresponding to the data; and obtaining a final cluster number corresponding to each piece of data until the current expansion iteration frequency is not less than the expansion record length, so a