Hitachi, Ltd.

Junpei Nishitani

Nobuyuki Yamamoto

Naoshi Maniwa

A distributed transaction control system includes redundant coordinator apparatuses, wherein determination part replaces input votes to votes of preparation failure when input votes from the participant apparatus time out, makes a determination of commit when all input votes are votes of preparation success, makes a determination of rollback when the input votes include at least one vote of preparation failure, and inputs a content of the determination into the distributed consensus processing part, the distributed consensus processing part decides on one of the contents of the determination that are inputs from the determination parts, by distributed consensus, and settlement part notifies an output of the distributed consensus processing part to the participant apparatuses as a settlement result.

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Tokyo, Japan

Junpei Nishitani