Ntt Docomo, Inc.

Akihiro Suzuki

The management server includes an active process executor that updates a database of a first system on the basis of instruction information and accumulates the instruction information in a storage device of the first system as first update information, and a standby process executor that updates a database on the basis of second update information acquired from a storage device of a second system. In a case in which the active period starts in the first system before the standby process executor acquires the second update information from the storage device of the second system, the active process executor determines, upon recovery of the second system, whether to execute the recovery processing reflecting the content of the second update information in the database on the basis of the first update information and the second update information.

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Chiyoda-ku, Japan

Akihiro Suzuki