Distributed processing method and system

Patent metadata

Field	Value
Publication number	US-2016011980-A1
Application number	US-201514860169-A
Country	US
Kind code	A1
Filing date	Sep 21, 2015
Priority date	Mar 27, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

A disclosed information processing method is executed in a distributed processing system that processes data by plural information processing apparatuses. And the information processing method includes: obtaining, by a first information processing apparatus of the plural information processing apparatuses and from a second information processing apparatus that manages relations among data, identification information of first data that has a predetermined relation with second data and identification information of an information processing apparatus that manages the first data, upon detecting access to the second data managed by the first information processing apparatus; reading out, by the first information processing apparatus, the first data, upon determining that the information processing apparatus that manages the first data corresponds to the first information processing apparatus; and loading, by the first information processing apparatus, the first data into a cache.

First claim

What is claimed is:

1 . An information processing method executed in a distributed processing system that processes data by a plurality of information processing apparatuses, comprising:
obtaining, by a first information processing apparatus of the plurality of information processing apparatuses and from a second information processing apparatus that manages relations among data, identification information of first data that has a predetermined relation with second data and identification information of an information processing apparatus that manages the first data, upon detecting access to the second data managed by the first information processing apparatus; reading out, by the first information processing apparatus, the first data, upon determining that the information processing apparatus that manages the first data corresponds to the first information processing apparatus; and loading, by the first information processing apparatus, the first data into a cache.

2 . The information processing method as set forth in claim 1 , further comprising:
transmitting, by the first information processing apparatus, a first request to load the first data into the cache to the information processing apparatus that manages the first data, upon determining that the information processing apparatus that manages the first data does not correspond to the first information processing apparatus.

3 . The information processing method as set forth in claim 1 , further comprising:
deleting, by the information processing apparatus, the second data loaded into the cache, upon detecting that the access to the second data has ended.

4 . An information processing method executed in a distributed processing system that processes data by a plurality of information processing apparatuses, comprising:
extracting, by a first information processing apparatus of the plurality of information processing apparatuses, identification information of first data that has a predetermined relation with second data from a related data storage unit that stores data in association with identification information of the data and identification information of data that has the predetermined relation with the data, upon receiving a first request to request information for the first data that has the predetermined relation with the second data from a second information processing apparatus that manages the second data; and transmitting, by the first information processing apparatus, the extracted identification information of the first data and identification information of an information processing apparatus that manages the first data to a transmission source of the first request.

5 . The information processing method as set forth in claim 4 , further comprising:
updating, by the first information processing apparatus, data stored in the related data storage unit based on at least one of a relation among data contents, a storage location of data, and a timestamp of the data.

6 . The information processing method as set forth in claim 4 , further comprising:
updating, by the first information processing apparatus, data stored in the related data storage unit based on history of access to data in the distributed processing system.

7 . A non-transitory computer-readable storage medium storing a program for causing a first information processing apparatus of a plurality of information processing apparatuses to execute a process, the process comprising:
obtaining, from a second information processing apparatus that manages relations among data, identification information of first data that has a predetermined relation with second data and identification information of an information processing apparatus that manages the first data, upon detecting access to the second data managed by the first information processing apparatus; reading out the first data, upon determining that the information processing apparatus that manages the first data corresponds to the first information processing apparatus; and loading the first data into a cache.

8 . A non-transitory computer-readable storage medium storing a program for causing a first information processing apparatus of a plurality of information processing apparatuses to execute a process, the process comprising:
extracting identification information of first data that has a predetermined relation with second data from a related data storage unit that stores data in association with identification information of the data and identification information of data that has the predetermined relation with the data, upon receiving a first request to request information for the first data that has the predetermined relation with the second data from a second information processing apparatus that manages the second data; and transmitting the extracted identification information of the first data and identification information of an information processing apparatus that manages the first data to a transmission source of the first request.

9 . A first information processing apparatus, comprising:
a memory; and a processor configured to use the memory and execute a process, the process comprising:
obtaining, from a second information processing apparatus that manages relations among data, identification information of first data that has a predetermined relation with second data and identification information of an information processing apparatus that manages the first data, upon detecting access to the second data managed by the first information processing apparatus;
reading out the first data, upon determining that the information processing apparatus that manages the first data corresponds to the first information processing apparatus; and
loading the first data into a cache.

10 . A first information processing apparatus, comprising:
a memory; and a processor configured to use the memory and execute a process, the process comprising:
extracting identification information of first data that has a predetermined relation with second data from a related data storage unit that stores data in association with identification information of the data and identification information of data that has the predetermined relation with the data, upon receiving a first request to request information for the first data that has the predetermined relation with the second data from a second information processing apparatus that manages the second data; and
transmitting the extracted identification information of the first data and identification information of an information processing apparatus that manages the first data to a transmission source of the first request.

11 . A distributed processing system that processes data by a plurality of information processing apparatuses, comprising:
a first information processing apparatus of the plurality of information processing apparatuses; and a second information processing apparatus of the plurality of information processing apparatuses, which manages relations among data, and wherein the first information processing apparatus comprises:
a memory; and
a processor configured to use the memory and execute a process, the process comprising:
obtaining, from the second information processing apparatus, identification information of first data that has a predetermined relation with second data and identification information of an information processing apparatus that manages the first data by transmitting a first request to request information for the first data, upon detecting access to the second data managed by the first information processing apparatus;
reading out the first data, upon detecting that the information processing appara

Assignees

• Fujitsu Ltd

Inventors

• Koike Yasuo
• Fujita Kazuhisa
• Maeda Toshiyuki
• Miyaji Tadahiro
• Furuta Tomonori
• Itou Fumiaki

Classifications

• G06F16/182

  Distributed file systems · CPC title

• G06F12/0871 Primary

  Allocation or management of cache space · CPC title

• G06F2212/314

  In storage network, e.g. network attached cache · CPC title

• G06F2212/6042

  Allocation of cache space to multiple users or processors · CPC title

• G06F2212/452

  Instruction code · CPC title