CACHE METHOD, WRITE POINT CLIENT AND READ CLIENT IN SERVER CLUSTER SYSTEM

摘要

The present invention relates to a cache method, a client and a system of a distributed server cluster system. A write point client determines, according to feature values of data to be written, a primary write client and at least one standby write client for saving the data to be written, and sends the data to be written to respective write caches of the primary write client and each of the standby write clients, respectively; and when determining that the data to be written are successfully saved in both the primary write client and each of the standby write clients, sends a first notification message to the primary write client and each of the standby write clients. The first notification message is used to notify the primary write client and each of the standby write clients to change a synchronization status of the respectively recorded data to be written from unsynchronized to synchronized. The technical solution provided in the present invention ensures the write consistency of data in distributed caches of the server cluster.