Fujitsu Corporation

Tsuyoshi Nagai

Naoto Takahashi

Masahisa Nakano

Michiyuki Mizutani

Takayuki Minato

A computing system includes: a plurality of computing machines and a load balancer configured to allocate computing processing to the plurality of computing machines. In the computing system, the plurality of computing machines executes the computing processing, each of the plurality of computing machines includes an execution instruction unit that instructs to execute one of garbage collection (GC) and restart of the computing machine. The computing machine, in an active state in which the computing processing is allowed to be executed, switches a state of another standby computing machine to an active state when the active computing machine is instructed to execute one of the GC and the restart of the computing machine, and starts one of the GC and the restart of the computing machine after the switching is completed.

Computing system and computing system management method

A structure of hierarchically structured data including two or more data pieces having a hierarchical relationship is determined. An identifier is added to a data piece that is an element of the hierarchically structured data. The method determines whether or not there are two or more data pieces with the same identifier as the identifier of a first data piece, in a hierarchical data sequence composed of the first data piece and a second data piece placed below the first data piece, determines that an infinite hierarchical structure takes place when there are two or more data pieces with the same identifier if the second data piece is placed below the first data piece, and determines that an infinite hierarchical structure does not take place when there are not two or more data pieces with the same identifier, even if the second data piece is placed below the first data piece. Corresponding to the determined result, the data placement that results in an occurrence of an infinite hierarchical structure can be prevented.

Growing community of inventors

Kawasaki, Japan

Tsuyoshi Nagai