CN105306583A - Distributed permission management method and system based on atomic broadcast technology - Google Patents
Distributed permission management method and system based on atomic broadcast technology Download PDFInfo
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- CN105306583A CN105306583A CN201510771042.XA CN201510771042A CN105306583A CN 105306583 A CN105306583 A CN 105306583A CN 201510771042 A CN201510771042 A CN 201510771042A CN 105306583 A CN105306583 A CN 105306583A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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Abstract
The invention relates to a distributed permission management method and system based on an atomic broadcast technology. The distributed permission management method and system are applied to a subway management platform. The method comprises the following steps that: various central monitoring servers recommend leader nodes in a voting manner; the central monitoring server in the leader state currently counts the recommended leader nodes so as to obtain the leader node having the highest vote and set the leader node having the highest vote as the effective leader node, such that the corresponding central monitoring server is in the effective leader state; and the central monitoring server in the effective leader state updates information of other central monitoring servers by using self current data information according to data synchronization requests from other central monitoring servers, such that data information of all the central monitoring servers is synchronous and consistent. According to the invention, the effective leader node can be voted again in an atomic broadcast manner when the central monitoring server in the leader state currently crashes or loses most of the support; and thus, all the central monitoring servers synchronize data again.
Description
Technical field
The present invention relates to a kind of distributed right management method based on atomic broadcasting technology and system.
Background technology
In subway comprehensive monitoring system, every bar circuit is provided with tens stations, each station has respective subsystem to need monitoring, perform monitoring and need the management subsystem authority obtaining it in advance, and these authorities have mutual exclusion demand, that is some moment, an operator is only had can to have its authority.There are some stations, not only can manage its our station authority, also can be reclaimed by authority and transfer mode manages the authority of other website.This will inevitably cause the subsystem authority at some stations to be distributed in multiple website.How solving mutual exclusion with synchronous, is the difficult point of system.Traditional solution arranges a central site, and all rights state data write operations, all pass through central site, other websites, is all carry out read-write operation by central site.By arranging a central site, mutual exclusion and the stationary problem of rights state data really simply can be solved.But having an obvious deficiency here, is exactly too high to the dependence of central site, if central site server occurs abnormal, can not recover for a long time, so just can not be synchronized between other website.
Summary of the invention
For the deficiencies in the prior art, the present invention is intended to provide a kind of subway solved the problems of the technologies described above distributed Rights Management System.
For achieving the above object, the present invention adopts following technical scheme:
Based on a distributed right management method for atomic broadcasting technology, be applied in subway management platform, it comprises:
Election steps: each monitoring server at central level adopts poll mode to recommend leader node, the monitoring server at central level of current leader's state is added up the leader node recommended, to obtain the highest leader node of poll, and leader node the highest for poll is set to effective leader node, make corresponding monitoring server at central level be in effective leader's state; And
Synchronizing step: this effectively leads the monitoring server at central level of state to upgrade the information of other monitoring servers at central level with self current data message according to the data synchronization request from other monitoring servers at central level, to make the data message of all monitoring servers at central level synchronously consistent.
Preferably, election steps comprises following sub-step:
Step S11: the monitoring server at central level of current leader's state initiates election inquiry to each monitoring server at central level;
Step S12: each monitoring server at central level sends election return information according to the election inquiry received to the monitoring server at central level deserving front leader's state, wherein, this election return information comprises current leader node information, own node ID and recommends leader node information;
Step S13: before deserving, the monitoring server at central level of leader's state obtains the node ID of corresponding central monitoring server and corresponding recommendation leader node information, to generate when time poll table of election according to electing return information;
Step S14: before deserving, the monitoring server at central level of leader's state calculates according to when secondary poll table the monitoring server at central level obtaining and recommend the poll of leader node information the highest;
Step S15: before deserving, the monitoring server at central level of leader's state judges whether the poll of the monitoring server at central level that this poll is the highest is greater than (n/2+1), and wherein, n is the quantity of monitoring server at central level, if so, performs step S6; If not, execution step S1 is returned; And
Step S16: before deserving, monitoring server at central level the highest for current poll is set to effective leader node by the monitoring server at central level of leader's state.
Preferably, synchronizing step comprises following sub-step:
Step S31: each monitoring server at central level sends data synchronization request to the monitoring server at central level of effective leader's state, and wherein, this data synchronization request comprises the data state info of corresponding monitoring server at central level self; And
Step S32: effectively the monitoring server at central level of leader's state carries out Data Update according to the data state info of each monitoring server at central level to each monitoring server at central level, to make the synchronous consistent of the monitoring server at central level of the latest data information of each monitoring server at central level and effective leader's state.
Based on a distributed Rights Management System for atomic broadcasting technology, be applied in subway management platform, it comprises some monitoring servers at central level and some work station rights service ends;
Each monitoring server at central level adopts poll mode to recommend leader node, the monitoring server at central level of current leader's state is added up the leader node recommended, to obtain the highest leader node of poll, and leader node the highest for poll is set to effective leader node, make corresponding monitoring server at central level be in effective leader's state; The monitoring server at central level of this effective leader's state upgrades the information of other monitoring servers at central level with self current data message according to the data synchronization request from other monitoring servers at central level, to make the data message of all monitoring servers at central level synchronously consistent; Each monitoring server at central level connects at least one work station rights service end, to transfer or the administration authority of recovery operation station rights service end.
Preferably, in the vote by ballot stage, the monitoring server at central level of current leader's state initiates election inquiry to each monitoring server at central level
Each monitoring server at central level sends election return information according to the election inquiry received to the monitoring server at central level deserving front leader's state, wherein, this election return information comprises current leader node information, own node ID and recommends leader node information;
Before deserving, the monitoring server at central level of leader's state obtains the node ID of corresponding central monitoring server and corresponding recommendation leader node information, to generate when time poll table of election according to electing return information;
Before deserving, the monitoring server at central level of leader's state calculates according to when secondary poll table the monitoring server at central level obtaining and recommend the poll of leader node information the highest;
Before deserving, the monitoring server at central level of leader's state judges whether the poll of the monitoring server at central level that this poll is the highest is greater than (n/2+1), wherein, n is the quantity of monitoring server at central level, if so, before deserving, monitoring server at central level the highest for current poll is set to effective leader node by the monitoring server at central level of leader's state; If not, election inquiry is again initiated.
Preferably, at data synchronization phase, each monitoring server at central level sends data synchronization request to the monitoring server at central level of effective leader's state, and wherein, this data synchronization request comprises the data state info of corresponding monitoring server at central level self; The monitoring server at central level of effective leader's state carries out Data Update according to the data state info of each monitoring server at central level to each monitoring server at central level, to make the synchronous consistent of the monitoring server at central level of the latest data information of each monitoring server at central level and effective leader's state.
Beneficial effect of the present invention is at least as follows:
The present invention can run quickly to burst or lose when great majority are supported at the monitoring server at central level of current leader's state and re-elect out effective leader node in atomic broadcasting mode; allow all monitoring server re-synchronization data at central level; no matter the some work station rights service ends being in subordinate with which monitoring server at central level are connected, and can get identical data message.
Accompanying drawing explanation
Fig. 1 is the flow chart of the election steps of the distributed right management method that the present invention is based on atomic broadcasting technology.
Fig. 2 is the configuration diagram of the distributed Rights Management System that the present invention is based on atomic broadcasting technology.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further:
Refer to Fig. 1, the present invention relates to a kind of distributed right management method based on atomic broadcasting technology, be applied in subway management platform, its better embodiment comprises the following steps:
Election steps: each monitoring server at central level adopts poll mode to recommend leader node, the monitoring server at central level of current leader's state is added up the leader node recommended, to obtain the highest leader node of poll, and leader node the highest for poll is set to effective leader node, make corresponding monitoring server at central level be in effective leader's state; And
Synchronizing step: this effectively leads the monitoring server at central level of state to upgrade the information of other monitoring servers at central level with self current data message according to the data synchronization request from other monitoring servers at central level, to make the data message of all monitoring servers at central level synchronously consistent.
The present invention can run quickly to burst or lose when great majority are supported at the monitoring server at central level of current leader's state and re-elect out effective leader node in atomic broadcasting mode; allow all monitoring server re-synchronization data at central level; no matter the some work station rights service ends being in subordinate with which monitoring server at central level are connected, and can get identical data message.
In the present embodiment, election steps comprises following sub-step:
Step S11: the monitoring server at central level of current leader's state initiates election inquiry, to start election thread to each monitoring server at central level;
Step S12: each monitoring server at central level sends election return information according to the election inquiry received to the monitoring server at central level deserving front leader's state, wherein, this election return information comprises current leader node information, own node ID and recommends leader node information.
Step S13: before deserving, the monitoring server at central level of leader's state obtains the node ID of corresponding central monitoring server and corresponding recommendation leader node information, to generate when time poll table of election according to electing return information;
Step S14: before deserving, the monitoring server at central level of leader's state calculates according to when secondary poll table the monitoring server at central level obtaining and recommend the poll of leader node information the highest;
Step S15: before deserving, the monitoring server at central level of leader's state judges whether the poll of the monitoring server at central level that this poll is the highest is greater than (n/2+1), and wherein, n is the quantity of monitoring server at central level, if so, performs step S6; If not, return and perform step S1, again to vote; And
Step S16: before deserving, monitoring server at central level the highest for current poll is set to effective leader node by the monitoring server at central level of leader's state.
In the present embodiment, synchronizing step comprises following sub-step:
Step S31: each monitoring server at central level sends data synchronization request to the monitoring server at central level of effective leader's state, and wherein, this data synchronization request comprises the data state info of corresponding monitoring server at central level self; And
Step S32: effectively the monitoring server at central level of leader's state carries out Data Update according to the data state info of each monitoring server at central level to each monitoring server at central level, to make the synchronous consistent of the monitoring server at central level of the latest data information of each monitoring server at central level and effective leader's state.
See Fig. 2, the invention still further relates to a kind of distributed Rights Management System based on atomic broadcasting technology, be applied in subway management platform, it comprises some monitoring servers at central level and some work station rights service ends.
Each monitoring server at central level adopts poll mode to recommend leader node, the monitoring server at central level of current leader's state is added up the leader node recommended, to obtain the highest leader node of poll, and leader node the highest for poll is set to effective leader node, make corresponding monitoring server at central level be in effective leader's state; The monitoring server at central level of this effective leader's state upgrades the information of other monitoring servers at central level with self current data message according to the data synchronization request from other monitoring servers at central level, to make the data message of all monitoring servers at central level synchronously consistent; Each monitoring server at central level connects at least one work station rights service end, to transfer or the administration authority of recovery operation station rights service end.
Because the data syn-chronization of all monitoring servers at central level is consistent, no matter the some work station rights service ends being in subordinate with which monitoring server at central level are connected, and can get identical data message.
Under normal circumstances, the operational responsibility of most subsystems is responsible for by monitoring server at central level.The operator of work station if desired controls certain subsystem, needs to monitoring server application at central level, and monitoring server at central level utilizes operational responsibility lowering function to realize authority and transfers.Because each monitoring server at central level is synchronously consistent, each working terminal all may be read into same one's share of expenses for a joint undertaking System Privileges Data View completely, in the data that a website upgrades, other website all synchronized update, the collapse of a website, other website can not be affected and normally provide service, thus ensure subway management steady ordered.
Preferably, in the vote by ballot stage, the monitoring server at central level of current leader's state initiates election inquiry, to start election thread to each monitoring server at central level;
Each monitoring server at central level sends election return information according to the election inquiry received to the monitoring server at central level deserving front leader's state, wherein, this election return information comprises current leader node information, own node ID and recommends leader node information.
Before deserving, the monitoring server at central level of leader's state obtains the node ID of corresponding central monitoring server and corresponding recommendation leader node information, to generate when time poll table of election according to electing return information;
Before deserving, the monitoring server at central level of leader's state calculates according to when secondary poll table the monitoring server at central level obtaining and recommend the poll of leader node information the highest;
Before deserving, the monitoring server at central level of leader's state judges whether the poll of the monitoring server at central level that this poll is the highest is greater than (n/2+1), wherein, n is the quantity of monitoring server at central level, if so, before deserving, monitoring server at central level the highest for current poll is set to effective leader node by the monitoring server at central level of leader's state; If not, election inquiry is again initiated.
Preferably, at data synchronization phase, each monitoring server at central level sends data synchronization request to the monitoring server at central level of effective leader's state, and wherein, this data synchronization request comprises the data state info of corresponding monitoring server at central level self; The monitoring server at central level of effective leader's state carries out Data Update according to the data state info of each monitoring server at central level to each monitoring server at central level, to make the synchronous consistent of the monitoring server at central level of the latest data information of each monitoring server at central level and effective leader's state.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection range of the claims in the present invention.
Claims (6)
1., based on a distributed right management method for atomic broadcasting technology, be applied in subway management platform, it is characterized in that: it comprises:
Election steps: each monitoring server at central level adopts poll mode to recommend leader node, the monitoring server at central level of current leader's state is added up the leader node recommended, to obtain the highest leader node of poll, and leader node the highest for poll is set to effective leader node, make corresponding monitoring server at central level be in effective leader's state; And
Synchronizing step: this effectively leads the monitoring server at central level of state to upgrade the information of other monitoring servers at central level with self current data message according to the data synchronization request from other monitoring servers at central level, to make the data message of all monitoring servers at central level synchronously consistent.
2., as claimed in claim 1 based on the distributed right management method of atomic broadcasting technology, it is characterized in that: election steps comprises following sub-step:
Step S11: the monitoring server at central level of current leader's state initiates election inquiry to each monitoring server at central level;
Step S12: each monitoring server at central level sends election return information according to the election inquiry received to the monitoring server at central level deserving front leader's state, wherein, this election return information comprises current leader node information, own node ID and recommends leader node information;
Step S13: before deserving, the monitoring server at central level of leader's state obtains the node ID of corresponding central monitoring server and corresponding recommendation leader node information, to generate when time poll table of election according to electing return information;
Step S14: before deserving, the monitoring server at central level of leader's state calculates according to when secondary poll table the monitoring server at central level obtaining and recommend the poll of leader node information the highest;
Step S15: before deserving, the monitoring server at central level of leader's state judges whether the poll of the monitoring server at central level that this poll is the highest is greater than (n/2+1), and wherein, n is the quantity of monitoring server at central level, if so, performs step S6; If not, execution step is returned
S1; And
Step S16: before deserving, monitoring server at central level the highest for current poll is set to effective leader node by the monitoring server at central level of leader's state.
3., as claimed in claim 1 or 2 based on the distributed right management method of atomic broadcasting technology, it is characterized in that: synchronizing step comprises following sub-step:
Step S31: each monitoring server at central level sends data synchronization request to the monitoring server at central level of effective leader's state, and wherein, this data synchronization request comprises the data state info of corresponding monitoring server at central level self; And
Step S32: effectively the monitoring server at central level of leader's state carries out Data Update according to the data state info of each monitoring server at central level to each monitoring server at central level, to make the synchronous consistent of the monitoring server at central level of the latest data information of each monitoring server at central level and effective leader's state.
4. based on a distributed Rights Management System for atomic broadcasting technology, be applied in subway management platform, it comprises some monitoring servers at central level and some work station rights service ends; Each monitoring server at central level adopts poll mode to recommend leader node, the monitoring server at central level of current leader's state is added up the leader node recommended, to obtain the highest leader node of poll, and leader node the highest for poll is set to effective leader node, make corresponding monitoring server at central level be in effective leader's state; The monitoring server at central level of this effective leader's state upgrades the information of other monitoring servers at central level with self current data message according to the data synchronization request from other monitoring servers at central level, to make the data message of all monitoring servers at central level synchronously consistent; Each monitoring server at central level connects at least one work station rights service end, to transfer or the administration authority of recovery operation station rights service end.
5. as claimed in claim 4 based on the distributed Rights Management System of atomic broadcasting technology, it is characterized in that: in the vote by ballot stage, the monitoring server at central level of current leader's state initiates election inquiry to each monitoring server at central level
Each monitoring server at central level sends election return information according to the election inquiry received to the monitoring server at central level deserving front leader's state, wherein, this election return information comprises current leader node information, own node ID and recommends leader node information;
Before deserving, the monitoring server at central level of leader's state obtains the node ID of corresponding central monitoring server and corresponding recommendation leader node information, to generate when time poll table of election according to electing return information;
Before deserving, the monitoring server at central level of leader's state calculates according to when secondary poll table the monitoring server at central level obtaining and recommend the poll of leader node information the highest;
Before deserving, the monitoring server at central level of leader's state judges whether the poll of the monitoring server at central level that this poll is the highest is greater than (n/2+1), wherein, n is the quantity of monitoring server at central level, if so, before deserving, monitoring server at central level the highest for current poll is set to effective leader node by the monitoring server at central level of leader's state; If not, election inquiry is again initiated.
6. the distributed Rights Management System based on atomic broadcasting technology as described in claim 4 or 5, it is characterized in that: at data synchronization phase, each monitoring server at central level sends data synchronization request to the monitoring server at central level of effective leader's state, wherein, this data synchronization request comprises the data state info of corresponding monitoring server at central level self; The monitoring server at central level of effective leader's state carries out Data Update according to the data state info of each monitoring server at central level to each monitoring server at central level, to make the synchronous consistent of the monitoring server at central level of the latest data information of each monitoring server at central level and effective leader's state.
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| CN110901691A (en) * | 2018-09-17 | 2020-03-24 | 株洲中车时代电气股份有限公司 | Ferroelectric data synchronization system and method and train network control system |
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Application publication date: 20160203 |