CN101340331A - Method for executing system task by idle terminal in P2P network - Google Patents

Method for executing system task by idle terminal in P2P network Download PDF

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Publication number
CN101340331A
CN101340331A CNA2007101279962A CN200710127996A CN101340331A CN 101340331 A CN101340331 A CN 101340331A CN A2007101279962 A CNA2007101279962 A CN A2007101279962A CN 200710127996 A CN200710127996 A CN 200710127996A CN 101340331 A CN101340331 A CN 101340331A
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task
node
allocated resource
idle
resource manager
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CN101340331B (en
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唐宏
武娟
庞涛
黄海
吕冠中
陈珣
梁洁
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Abstract

The invention relates to a method for executing the system task in P2P network by using an idle terminal, wherein, two-level management servers are arranged in the P2P network, namely, a resource management server (RM) and a designated resource manager (DR), which are used for dynamically monitoring the state of P2P nodes and assigning task to the nodes in idle state. By using the idle nodes in the P2P network to share the burden of other nodes, the higher network resource utilization rate is realized, and the resources can be scheduled and used sufficiently.

Description

Utilize the method for non-occupied terminal executive system task in the P2P network
Technical field
The present invention relates to the telecommunication network technology field, specifically, relate to a kind ofly in carrier-class point-to-point (P2P) network, utilize the method for the non-occupied terminal executive system task in the network.
Background technology
Because a large amount of idle node of ubiquity in the present P2P network, these nodes possess the ability of certain storage, distribution, route calculating, task processing, but owing to lack efficient scheduling mechanism, can't dispatch fully and utilize its resource.
Summary of the invention
Therefore, the objective of the invention is to propose to utilize in a kind of P2P network the method for non-occupied terminal executive system task, can make full use of the idling-resource of telecommunication level P 2 P network, collect the information of idle P2P node by the control aspect of network, and dispatch these non-occupied terminals, the system of being finishes the task of appointment.
For achieving the above object, the method of the invention has disposed the two-stage management server in the P2P network, be respectively explorer (RM) and allocated resource manager (DR), this two-stage management server is the state of the common P2P node of monitoring (NN) in real time, and, trigger the executing state that these nodes enter system's assign task for being in the node assign task of idle condition.
Wherein, explorer (RM) is as first order resource management server, be responsible for the overall scheduling and the resources balance of whole network, and allocated resource manager (DR) is as second level management server, be responsible for part scheduling and resources balance in this territory, and report to higher level's explorer (RM).
The P2P node that ordinary node (NN) expression is general.Generally speaking, the P2P node signs in to from initialization and leaves the P2P network and experienced repeatedly state exchange, and these states may comprise: initial condition, logging status, idle condition, executing state, off-line state.
Under initial condition, the P2P node is finished startup initial work such as own resource is searched, space Memory Allocation.Under logging status, the P2P node is mainly finished the authentication work with certificate server.After P2P node success login system, if do not carry out the action of uploading, downloading and connecting with other node or server (but still can carry out definition status after the connection report or connect keep action) of task, then this moment, the P2P node was in idle condition.
According to the present invention, after the P2P node is successfully logined, if certain P2P node detection is to be not assigned with any executable task certainly within one section preset time (as a few minutes), then oneself is labeled as idle condition, and current idle condition is reported allocated resource manager to the higher level.
In the present invention, idle P2P node has been taked the Task Switching treatment mechanism of classification.After higher level's allocated resource manager learns that certain P2P node is in idle condition, can assign a task for this idle node, utilize the idling-resource of this node to provide service for whole system.After this node receives this task, enter executing state, begin to carry out the task that the allocated resource manager is assigned.Generally speaking, the performed task rank of being assigned by higher level's resource management server of idle P2P node is minimum, and the task rank that the user initiatively requires this node to carry out is higher.In case this node of customer requirements is carried out a certain task, is carried out route calculating or other operation, then this node will stop to carry out the task that the allocated resource manager is assigned immediately, then carry out the task that the user distributes, perhaps tell most of resource and handle the incident that self need handle, carry out the original task of assigning of allocated resource manager with remaining fraction resource.When executing the task, the P2P node is regularly reported the state of oneself to affiliated allocated resource manager.
According to method proposed by the invention, by on the P2P network, resource management server being set, can control the distribution situation of Internet resources in real time, the state of each node in the dynamic monitoring P2P network, and the state that is in idle node dispatched and task assignment, in the control aspect dynamic dispatching network by the P2P network computing capability more than needed node of (free time) is arranged, the burden of other node in the sharing system, finish the task that system assigns, thereby the dispatch network resource makes the P2P network have stronger controllability more effectively, higher network resource utilization and more reliable and more stable fail safe.
Description of drawings
Below with reference to accompanying drawing and can understand the present invention better to the specific descriptions of embodiment.As shown in the figure:
Fig. 1 shows according to two-stage management server framework of the present invention.
Fig. 2 shows according to user node state transition graph of the present invention.
Fig. 3 shows according to the method for the invention, by the particular flow sheet of idle client executing system task.
Fig. 4 shows an application example of the present invention, wherein shows the distribution situation of hot programs fragment in the P2P network.
Embodiment
As shown in Figure 1, in the improvement network architecture according to the present invention, disposed the two-stage management server.Wherein explorer RM monitors a plurality of allocated resource manager DR of subordinate in real time as first order resource management server, reports from DR receiving node state, and plans as a whole the resource and the task of scheduling whole system.Allocated resource manager DR is as second level resource management server, and it monitors the state of a plurality of P2P node NN that self have jurisdiction over, and reports to RM.Simultaneously, allocated resource manager DR also carries out Preliminary screening to resource data, to the P2P node assign task of being had jurisdiction over that is in idle condition, thus the scheduling of interior resource of realization institute scope and task.
Fig. 2 is the state transition graph of a user node NN.After finishing initial work, this node login system.If distributed a certain task for this node this moment, this node will enter executing state, begin to carry out the task of being distributed.If this node detection is to (this time is set on the P2P node in one default period certainly, for example for a few minutes) all be not assigned with any task, then oneself is labeled as idle condition, and reports current idle condition to higher level's resource management server (allocated resource manager DR).After DR learnt that this node is in idle condition, the task to this node appointment idle period after this node receives the task of being assigned, became executing state from idle condition, begins to carry out the idle period task that DR assigns.At this moment, if there is the user to distribute a certain task for this node, this node idle period task of stopping and carrying out then, then go to carry out the task that the user distributes; Perhaps tell most of resource and go to carry out the task that the user distributes, only continue to carry out original idle period task of assigning with remaining a few resources.After task was finished, this node was got back to idle condition or off-line.
It is example that Fig. 3 transmits (download) business with content, has specifically illustrated the flow process of the client node executive system task of a free time, comprises each steps such as status report, state exchange and task execution.
At first, client node is labeled as idle condition with oneself, reports current state of self and the resource situation of oneself to affiliated DR simultaneously.Then, DR is that the node that is in idle condition is assigned an idle period task, and task arrangement (comprising content ID, meta file check information, peer node tabulation (peer-list) etc.) is pushed to this node.Idle node begins to carry out the idle period task (as uploading, download contents fragment) of being assigned after receiving and arranging from the idle period task of DR.When executing the task, client node checks at first whether self preserves the task meta file, if there is not relevant task source information, then need to send task meta file solicited message to adjacent reciprocity P2P node (peer), ask for the corresponding meta file relevant from other peer node, and the check value that utilizes DR to push carries out verification with this task.Then, the idle period task that this node utilizes self existing meta file information or assigned from the meta file information and executing that adjacent peer node obtains, promptly such as contents fragment upload, task such as contents fragment request, contents fragment download, state advertisement, content stores, hard-disc storage.When the user initiatively triggered a task, then this node transferred the execution user task to from carrying out the idle period assign task.
When executing the task, client node is regularly reported the state of self to affiliated DR.State to each node in this territory in DR writes down and adds up, and regularly reports situation in this territory to higher level's explorer RM.In RM, statistical information is gathered, thereby the scheduling of resource of whole network is carried out overall situation equilibrium
In existing P 2P network, each node relies on user instruction fully and carries out uploading and downloading of resource, is subjected to the restriction of system architecture.Owing to do not have the whole mechanism of weighing unified scheduling, can't make full use of the system task that node resource is carried out other non-user intentions.And the present invention is based upon on the telecommunication level P 2 P network framework of new generation, can make full use of resource idle in the network, finishes appointed task for system under the prerequisite that does not influence the service of user's using system.
The present invention is applied in the telecommunication level P 2 P network of new generation, and wherein system can come focus task in the sharing system by means of idling-resource.Below by Fig. 4, be how sharing system pressure of example explanation this method with the demand (telecommunication) service in the P2P network.
When comparatively concentrated behavior appearred in P2P user, when for example downloading certain match of certain silver screen hits or program request world cup, network traffics increased than usual greatly.The situation of network local congestion appears in P2P node easily that have these fragment resources, need the network management aspect in time these focus fragment resources to be distributed in the P2P network equably this moment, at this moment the idle node in the network just can be according to the scheduling of management server, automatically download and upload the part of these focus fragments, serve as the network storage, publisher node.
As shown in Figure 4, grasping the resource distribution situation of each node in the P2P network according to resource management server of the present invention (RM and DR).Resource management server can be dispatched idle node 1,2,3 and download a part of fragment resource, downloaded resources is evenly distributed in the network as far as possible.Like this, when needing request program, other users can obtain content resource by distributed earth.Simultaneously, by the credit score system in conjunction with telecommunication level P 2 P network, free subscriber is that system finishes the work and can obtain corresponding integration, improve the credit grade of oneself, both serve system, also repaid the user, embodied the fair and just environment for use of telecommunication level P 2 P network.

Claims (2)

1. method of in the P2P network, utilizing non-occupied terminal executive system task, it is characterized in that, in the P2P network, disposed the two-stage management server, promptly as the explorer (RM) of first order resource management server with as the allocated resource manager (DR) of second level management server
Wherein after P2P client node login system, if this node detection is to be not assigned with any executable task certainly in one section preset time, then will be self-marked as idle condition, and to affiliated current idle condition and its other resources situation of allocated resource manager (DR) report, after allocated resource manager (DR) learns that this node is in idle condition, for this node is assigned an idle period task, after this idle node receives the idle period task that the allocated resource manager assigned, enter executing state, begin to carry out the idle period task of being assigned
Carry out during the idle period task of being assigned in idle node, if initiatively require this node to carry out a certain task by the user, then this node stop is carried out idle period task and the reporting state information that allocated resource manager (DR) is assigned, then carry out the task that the user distributes, perhaps tell the task that most of resource comes process user to distribute, and only carry out the idle period task of originally being assigned with remaining fraction resource
Each P2P client node is regularly reported the current state of oneself to affiliated allocated resource manager (DR) when executing the task; Allocated resource manager (DR) is registered and is added up the state information of each P2P client node that this territory is had jurisdiction over, and the explorer (RM) of timing under own reported the node state in this territory; The information that explorer (RM) is reported linchpin allocated resource manager (DR) is added up, and carries out the overall scheduling and the resources balance of whole system.
2. the method for claim 1 is characterized in that, the P2P client node checks at first whether self preserves the task meta file when executing the task, if it's not true, and other these task meta files of P2P client node request in this territory then; If other P2P client nodes in this territory are this task meta file not also, then the allocated resource manager (DR) under it is asked this task meta file; When allocated resource manager (DR) is had jurisdiction over the task meta file request of node receiving, at first check and self whether preserve this task meta file,, then ask this task meta file to other allocated resource managers (DR) if it's not true; If other allocated resource managers (DR) are this task meta file not also, then the resource management server under it (RM) is asked this task meta file.
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