Abstract: Disclosed are a method, an electronic device and a system for updating a client configuration in a distributed cache system. The method includes: first of all, configuring, by a configuration center server, configuration identification information in a client so that the client acquires configuration information corresponding to the configuration identification information from the configuration center server and connects with a service node indicated in the configuration information, then determining whether update exists in the configuration information, and sending updated configuration information to the client when the update exists so that the client connects with a service node indicated in the updated configuration information.

Abstract: Disclosed are a method and a device for updating cache data. The method includes: according to data request information sent from a web server, sending, by a service server, response data corresponding to the data request information to the web server, and establishing a mapping relationship between a key and a data identity (ID); monitoring whether there is an update in the response data corresponding to the data ID; and if determining that there is an update in the response data corresponding to the data ID, obtaining the key based on the mapping relationship, and deleting the key and the response data corresponding to the key in the cache server according to the key.

Abstract: Disclosed are a method and a device for increasing cache hit ratio. The method includes: obtaining first data request information, and determining whether there is a format parameter in the first data request information, wherein the first data request information is data request information originally obtained by the web server; if determining that there is the format parameter in the first data request information, deleting the format parameter; obtaining a first data response packet corresponding to the first data request information, and determining whether the first data response packet includes format data corresponding to the format parameter; if determining that the first data response packet includes the format data corresponding to the format parameter, deleting the format data; and storing the first data request information after deletion of the format parameter and the first data response packet after deletion of the format data in a cache server.