Information processing system, information processing apparatus, and information processing apparatus control method

Patent metadata

Field	Value
Publication number	US-2016371151-A1
Application number	US-201615133253-A
Country	US
Kind code	A1
Filing date	Apr 20, 2016
Priority date	Jun 18, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

A metadata processing unit acquires the first metadata from a first data storing unit at a first frequency and makes a second data storing unit store the first metadata. A file data processing unit specifies, based on the update history of the first metadata, second metadata that is updated on and after the last acquisition date and time of second file data stored in the second data storing unit, acquires the first file data associated with the specified management data at a second frequency that is lower than the first frequency, and makes the second data storing unit store the first file data. A switching unit switches a read/write process that is performed by using the operation data stored in the first data storing unit such that the read/write process is performed by using the second metadata and the second file data in the second data storing unit.

First claim

What is claimed is:

1 . An information processing system comprising:
a first information processing apparatus; a second information processing apparatus; and an operation management device, wherein the first information processing apparatus includes
a first storing unit that stores therein operation data in which management data that includes therein update date and time and actual data that is associated with the management data are held,
the second information processing apparatus includes
a second storing unit, and
a first management data acquiring unit that acquires the management data from the first storing unit at a first frequency and that makes the second storing unit store the acquired management data, and
a first actual data acquiring unit that specifies, on the basis of an update history of the management data acquired by the first management data acquiring unit, the management data that is updated on and after the last acquisition date and time of the actual data stored in the second storing unit, that acquires the actual data associated with the specified management data from the first storing unit at a second frequency that is lower than the first frequency, and that makes the second storing unit store the acquired actual data, and
the operation management device includes
a switching unit that switches a read and write process that is performed by using the operation data stored in the first storing unit such that the read and write process is performed by using the management data and the actual data that are stored in the second storing unit.

2 . The information processing system according to claim 1 , wherein
the first information processing apparatus further includes an operation data update history saving unit that saves therein an update history of the management data that is stored in the first storing unit, and the first actual data acquiring unit specifies, at the time of switching performed by the switching unit, on the basis of the update history saved in the operation data update history saving unit and the update history of the management data acquired by the first management data acquiring unit, the management data that has not been updated and acquires the specified management data.

3 . The information processing system according to claim 1 , further comprising a third information processing apparatus that includes
a third storing unit, a second management data acquiring unit that acquires the management data from the second storing unit at a third frequency and that makes the third storing unit store the acquired management data, and a second actual data acquiring unit that specifies, on the basis of an update history of the management data acquired by the second management data acquiring unit, the management data that is updated on and after the last acquisition date and time of the actual data stored in the third storing unit, that acquires the actual data associated with the specified management data from the second storing unit at a fourth frequency that is lower than the third frequency, and that makes the third storing unit store the acquired actual data.

4 . The information processing system according to claim 1 , wherein
a plurality number of the second information processing apparatuses is present, the operation management device includes a priority storing unit that stores therein the priority of each of the second information processing apparatuses, and an information unit that, on the basis of the priority, the first frequency and the second frequency that are used by each of the first management data acquiring units are notified to the first management data acquiring unit in each of the second information processing apparatuses.

5 . An information processing apparatus comprising:
a first management data acquiring unit that acquires, from a first storing unit that stores therein operation data in which management data that includes therein update date and time and actual data that is associated with the management data are held, the management data at a first frequency and that makes a second storing unit store the acquired management data; and a first actual data acquiring unit that specifies, on the basis of an update history of the management data acquired by the first management data acquiring unit, the management data that is updated on and after the last acquisition date and time of the actual data stored in the second storing unit, that acquires the actual data associated with the specified management data from the first storing unit at a second frequency that is lower than the first frequency, and that makes the second storing unit store the acquired actual data.

6 . The information processing apparatus according to claim 5 , wherein a read and write process that is performed by using the operation data stored in the first storing unit is performed by using the management data and the actual data that are stored in the second storing unit.

7 . The information processing apparatus according to claim 5 , wherein the first storing unit is provided in another information processing apparatus that acquires, at a third frequency, operation data stored in a third storing unit that is different from the first storing unit and the second storing unit, that makes the first storing unit store the acquired operation data, that specifies, on the basis of an update history of the management data in the first storing unit, the management data that is updated on and after the last acquisition date and time of the actual data stored in the first storing unit, that acquires the actual data associated with the specified management data from the third storing unit at a fourth frequency that is lower than the third frequency, and that makes the first storing unit store the acquired actual data.

8 . An information processing apparatus control method comprising:
acquiring, from a first storing unit that stores therein operation data in which management data that includes therein update date and time and actual data that is associated with the management data are held, the management data at a first frequency; storing, performed by a second storing unit, the acquired management data; saving an update history of the management data that is stored in the second storing unit; holding the last update date and time on which the actual data acquired from the first storing unit is made to be stored by the second storing unit; specifying, on the basis of the update history, the management data that is updated on and after the last acquisition date and time at a second frequency that is lower than the first frequency; acquiring the actual data associated with the specified management data; and storing, performed by the second storing unit, the acquired actual data.

Assignees

• Fujitsu Ltd

Inventors

• Masuda Kouji
• Yoshida Akimasa
• Kobashi Kazunori

Classifications

• G06F11/2097

  maintaining the standby controller/processing unit updated (initialisation or re-synchronisation thereof G06F11/1658 and subgroups) · CPC title

• G06F16/955

  using information identifiers, e.g. uniform resource locators [URL] · CPC title

• G06F3/0619

  in relation to data integrity, e.g. data losses, bit errors · CPC title

• G06F11/1451 Primary

  by selection of backup contents · CPC title

• G06F2201/80

  Database-specific techniques · CPC title