Relay apparatus for transmitting data written in memory upon receiving data acquisition request command from client before predetermined time elapses after reception of data from server, and for determining property of transmitting data acquisition request command

Abstract

An event reception unit receives event identification information transmitted from a client. A recorder records event identification information and a data acquisition request command in association with each other. A command acquisition unit acquires a data acquisition request command associated with the event identification information received by the event reception unit. A command transmission control unit controls command transmission performed by a command transmission unit. A cache control unit writes, in a memory, data received from a management server. When a command reception unit receives a data acquisition request command transmitted from a client, a data transmission unit transmits the data written in the memory to the client.