Finnegan, Henderson, Farabow, Garrett & Dunner LLP
Methods and apparatuses for cluster switching
Apparatuses and methods are disclosed for cluster switching. An exemplary method may include synchronizing original data on a first cluster to a second cluster after starting to switch clusters. A priority of the original data on the second cluster is set to a lower priority. The method may also include responding to a write operation request on the second cluster in the period of synchronizing the original data on the first cluster to the second cluster. A priority of new data corresponding to the write operation request is set to a higher priority. A version of data with a higher priority can overwrite another version of data. The method may further include responding to the write operation request on the second cluster after synchronizing the original data on the first cluster to the second cluster.
ALIBABA GROUP HOLDING LIMITED
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Ting Wenzhao Zhongyu Jinbo Ming
Zhang Li Zou Wu Yang