Distributed content storing system, node device, node process program, and content data providing method

• US 20080235244A1
• Filed: 03/04/2008
• Published: 09/25/2008
• Est. Priority Date: 03/23/2007
• Status: Abandoned Application

• Current Assignee: Brother Kogyo Kabushiki Kaisha
• Original Assignee: Brother Kogyo Kabushiki Kaisha
• Inventors: Matsuo, Hideki
• Application Number:
  US12/073,345
• Publication Number:
  US 20080235244A1
• Time in Patent Office: Days
• US Class Current: 707/10
• CPC Class Codes: G06F 16/134 Distributed indices
• CPC Class Codes: G06F 16/1837 Management specially adapted to peer-to-peer storage networks topology management mechanisms of peer-to-peer networks H04L67/1042

Abstract

A node device included in a distributed content storing system which includes a plurality of node devices mutually communicable through a network, the node device including:

• • a means for receiving storing request information indicative of storing request of the content data;
  • a means for judging whether or not a standard for determining a degree of load of the network in response to the storing request information; and
  • a means for acquiring and storing content data related to the storing request information from another node device storing the content data through the network in a case where the standard is satisfied.

Claims

1. A node device included in a distributed content storing system which includes a plurality of node devices enabled to mutually communicated through a network, the plurality of node devices including a plurality of content data distributed and stored therein, the node device comprising:

a storing request receiving means for receiving storing request information indicative of storing request of the content data;

a standard judgment means for judging whether or not a standard for determining a degree of load of the network in response to the storing request information; and

a content data acquisition means for acquiring and storing content data related to the storing request information from another node device storing the content data through the network in a case where the standard is satisfied.

2. The node device according to claim 1,

wherein the standard judgment means judges whether or not the present time is in a usage restriction time band, previously set in the distributed content storing system;

and

the content data acquisition means acquires and saves content data from another node device storing the content data related to the storing request information in a case where the present time is not in the usage restriction time.

3. The node device according to claim 1, further comprising:

a load information acquisition means for acquiring load information indicative of a volume of load of a relay device, which is connected to a plurality of node devices including the own node device and the network and relays data,

wherein the standard judgment means judges whether or not the volume of load indicated by the load information thus acquired exceeds a previously set standard volume; and

the content data acquisition means acquires and saves content data from another node device storing the content data related to the storing request information in a case where the volume of load does not exceed the standard volume.

4. The node device according to claim 1, further comprising:

a node number information acquisition means for acquiring node number information indicative of a number of the node devices, connected to the relay device, which are connected to the plurality of node devices including the own node device and the network and relays the data,

wherein the standard judgment means judges whether or not a number of node devices indicated by the node number information thus acquired exceeds a previously set standard number, and

the content data acquisition means acquires and stores content data from another node device storing the content data related to the storing request information in a case where the number of node devices does not exceed the standard number.

5. The node device according to claim 1, further comprising:

a measuring means for measuring a reply time from another device through the network,

wherein the standard judgment means judges whether or not the reply time thus measured exceeds a previously set standard time, and

the content data acquisition means acquires and stores content data from another node device storing the content data related to the storing request information in a case where the reply time does not exceed the standard time.

6. The node device according to claim 1, further comprising:

a consumption band information acquisition means for acquiring consumption band information indicative of a consumption band of the network,

wherein the standard judgment means judges whether or not consumption band thus acquired exceeds a previously set standard value, and

the content data acquisition means acquires and stores content data from another node device storing the content data related to the storing request information in a case where the consumption band does not exceed the standard value.

7. The node device according to claim 1,

wherein the content data acquisition means waits until the standard is satisfied in a case where the standard is not satisfied, and when the standard is satisfied, the content data acquisition means acquires and stores content data from another node device storing the content data related to the storing request information.

8. The node device according to claim 1,

wherein the content data acquisition means lowers acquisition speed of the content data, and acquires and stores the content data from another node device storing the content data related to the storing request information in a case where the standard is not satisfied.

9. The node device described in claim 1, further comprising:

a storing request information transfer means for transferring the storing request information to another node device in a case where the standard is not satisfied.

16. A node process program causing a computer to function as a node device according to claim 1.

10. A node device included in a distributed content storing system including a plurality of node devices enabled to mutually communicate wherein a plurality of content data are distributed and stored in a plurality of node devices comprising:

a provision request receiving means for receiving provision request information indicative of a provision request of the content data from another node device;

a standard judgment means for judging whether or not a standard for determining a degree of load of the network is satisfied in response to the provision request information; and

a content data providing means for transmitting content data related to the provision request information to the another node deice through the network when the standard is satisfied.

11. The node device according to claim 10,

wherein the standard judgment means judges whether or not the present time is in a usage restriction time band previously set up in the distributed content storing system, and

the content data providing means transmits content data related to the provision request information to the another node device in a case where the present time is not in the usage restriction time.

12. The node device according to claim 10, further comprising:

a load information acquisition means for acquiring load information indicative of a volume of load of a relay device, which is connected to the plurality of node devices including the own node device and the network and relays data,

wherein the standard judgment means judges whether or not a volume of load indicated by the load information thus acquired exceeds a previously set standard volume, and

the content data acquisition means transmits content data related to the provision request information to the another node device in a case where the volume of load does not exceed the standard volume.

13. The node device according to claim 10, further comprising:

a node number information acquisition means for acquiring node number information indicative of a number of the node devices, connected to the relay device, which are connected to a plurality of node devices including the own node device and the network and relays data,

wherein the standard judgment means judges whether or not a number of the node devices indicated by the node number information thus acquired exceeds a previously set standard number, and

the content data providing means transmits content data related to the provision request information to the another node device in a case where the number of node devices does not exceed the standard number.

14. The node device according to claim 10, further comprising:

a measuring means for measuring a reply time from another device through the network;

wherein the standard judgment means judges whether or not the reply time thus measured exceeds the previously set standard time; and

the content data providing means transmits content data related to the provision request information to the another node device in a case where the number of the node devices does not exceed the standard time.

15. The node device according to claim 10, further comprising:

a consumption band information acquisition means for acquiring consumption band information indicative of a consumption band of the network,

wherein the standard judgment means judges whether or not the consumption band thus acquired exceeds previously set standard value, and

the content data providing means transmits content data related to the provision request information to the another node device in a case where the number of node devices does not exceed the standard value.

17. A distributed content storing system including a plurality of node devices enabled to mutually communicate through a network, the plurality of node devices including a plurality of content data distributed and stored therein, the node device comprising:

a storing request receiving means for receiving storing request information indicative of a storage request of the content data;

a standard judgment means for judging whether or not a standard for determining a degree of load of the network in response to the storing request information; and

a content data acquisition means for acquiring and storing content data related to a storing request information from another node-device, storing the content data from another node device through the network in a case where the standard is satisfied.

18. A content data acquisition method in a distributed content storing system including a plurality of node devices enabled to mutually communicate through a network, the plurality of node devices including a plurality of content data distributed and stored therein, the node device carries out:

a step of receiving storing request information indicative of storing request of the content data;

a step of judging whether or not a standard for determining a degree of load of the network is satisfied in response to the storing request information; and

a step of acquiring and storing content data related to the storing request information from another node device storing the content data through the network in a case where the standard is satisfied.

19. A distributed content storing system including a plurality of node devices enabled to mutually communicate through a network, the plurality of node devices including a plurality of content data distributed and stored therein, the node device comprising:

a provision request receiving means for receiving provision request information indicative of provision request of the content data from another node device;

a standard judgment means for judging whether or not a standard for determining a degree of load of the network is satisfied in response to the provision request information; and

a content data providing means for transmitting content data related to the provision request information to the another node device through the network in a case where the standard is satisfied.

20. A content data providing method in a distributed content storing system including a plurality of node devices enabled to mutually communicate through a network, the plurality of node devices including a plurality of content data distributed and stored therein, the node device carrying out:

a step of receiving provision request information indicative of provision request of the content data from another node device;

a step of judging whether or not a standard for determining a degree of load of the network is satisfied in response to the provision request information; and

a step of transmitting the content data related to the provision request information to the another node device through the network in a case where the standard is satisfied.