CN109309583B - Information acquisition method and device based on distributed system, electronic equipment and medium - Google Patents
Information acquisition method and device based on distributed system, electronic equipment and medium Download PDFInfo
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Abstract
The embodiment of the invention discloses an information acquisition method, an information acquisition device, electronic equipment and a medium based on a distributed system, wherein the method comprises the following steps: the target subsystem acquires topology messages sent by other subsystems in the distributed system, wherein the target subsystem is a subsystem newly built by the distributed system according to the information acquisition instruction, and the topology messages are used for realizing mutual discovery among the subsystems; and the target subsystem sends a node information acquisition request to any subsystem in the other subsystems according to the topology message so that any subsystem packs the information of all nodes in the distributed system and sends the information to the target subsystem, and more efficient information acquisition in the distributed system is realized. The target subsystem initiates a request for acquiring information to any subsystem, and each subsystem directly packages and sends all information according to the request, so that an active information acquisition mode is realized, and more effective and accurate information can be obtained.
Description
Technical Field
The embodiment of the invention relates to the technical field of computers, in particular to an information acquisition method and device based on a distributed system, electronic equipment and a medium.
Background
In the distributed system, when the subsystems are started, the subsystems generally find each other in a broadcast or multicast mode, and then the attribute information of each subsystem and each node in the subsystem is exchanged in a unicast mode established between every two subsystems, so that the topological network of the distributed system is obtained, and the service message is transmitted according to the relationship between the subsystems in the topological network.
After each subsystem in the distributed system is started, when a certain service message in the distributed system needs to be acquired, a method of adding an empty subsystem is generally adopted, the empty subsystem acquires a topological network of the distributed system according to the operation, and then the operation of acquiring the service message is executed.
However, in the prior art, in the process of acquiring the topology network of the current distributed system by the null subsystem, the null subsystem passively receives the respective attribute information sent by other subsystems, so that whether the attribute information is completely received cannot be judged, and if a timeout time is preset, the null subsystem finishes receiving after the time is reached, which also causes the problem of incomplete information receiving.
Disclosure of Invention
The embodiment of the invention provides an information acquisition method, an information acquisition device, electronic equipment and a medium based on a distributed system, and more accurate and more effective information acquisition in the distributed system is realized.
In a first aspect, an embodiment of the present invention provides an information obtaining method based on a distributed system, where the distributed system includes at least one subsystem, and each subsystem includes at least one node, and the method includes:
a target subsystem acquires topology messages sent by other subsystems in a distributed system, wherein the target subsystem is a subsystem newly built by the distributed system according to an information acquisition instruction, and the topology messages are used for realizing mutual discovery among the subsystems;
and the target subsystem sends a node information acquisition request to any subsystem in the other subsystems according to the topology message, so that the any subsystem packs the information of all nodes in the distributed system and sends the information to the target subsystem.
In a second aspect, an embodiment of the present invention further provides an information obtaining apparatus based on a distributed system, where the distributed system includes at least one subsystem, each subsystem includes at least one node, the apparatus is configured in a target subsystem in the distributed system, and the target subsystem is a newly-built subsystem of the distributed system according to an information obtaining instruction, where the apparatus includes:
the system comprises a topology message acquisition module, a topology message acquisition module and a topology message processing module, wherein the topology message acquisition module is used for acquiring topology messages sent by other subsystems in a distributed system, and the topology messages are used for realizing mutual discovery among the subsystems;
and the information request sending module is used for sending a node information acquisition request to any subsystem in the other subsystems according to the topology message so that the any subsystem packs the information of all nodes in the distributed system and then sends the information to the target subsystem.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
one or more processors;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors implement a method for acquiring information based on a distributed system according to any embodiment of the present invention.
In a fourth aspect, the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for information acquisition based on a distributed system according to any embodiment of the present invention.
In the embodiment of the invention, a target subsystem is newly built by responding to an information acquisition instruction; the target subsystem acquires the topology messages of other subsystems in a mode of sending the topology messages to other subsystems in the distributed system; and the target subsystem sends a node information acquisition request to any subsystem in other subsystems according to the topology message, so that any subsystem packs the information of all nodes in the distributed system and sends the information to the target subsystem, and more efficient information acquisition in the distributed system is realized. The target subsystem initiates a request for acquiring information to any subsystem, and each subsystem directly packages and sends all information according to the request, so that an active information acquisition mode is realized, and more effective and accurate information can be obtained.
Drawings
Fig. 1 is a flowchart of an information acquisition method based on a distributed system in a first embodiment of the present invention;
fig. 2 is a flowchart of an information acquisition method based on a distributed system in the second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an information acquisition apparatus based on a distributed system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device in a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of an information obtaining method based on a distributed system according to an embodiment of the present invention, where the present embodiment is applicable to a situation of obtaining information in a distributed system, where the distributed system includes at least one subsystem, and each subsystem includes at least one node, and the method may be executed by an information obtaining apparatus based on a distributed system, where the apparatus may be implemented by software and/or hardware and may be configured in an electronic device, and the electronic device may be configured on a vehicle, such as an unmanned vehicle with control and computing capabilities. As shown in fig. 1, the method includes:
s110, a target subsystem acquires topology messages sent by other subsystems in the distributed system, wherein the target subsystem is a subsystem newly built by the distributed system according to an information acquisition instruction, and the topology messages are used for realizing mutual discovery among the subsystems.
Specifically, when there is a need to acquire a service message in the distributed system, the distributed system may create a target subsystem according to the generated information acquisition instruction, where the target subsystem may be regarded as a null subsystem and includes a node for receiving and sending a message.
After the target subsystem is started, the target subsystem sends topology messages to other subsystems and receives topology messages sent by other subsystems. The topology message may be information for identifying or describing attributes of the subsystems, and may include, for example, names of the subsystems, names of hosts to which the subsystems belong, and the like, so as to implement mutual discovery between the subsystems. In addition, the topology message may be specifically sent in a broadcast or multicast manner, so that all subsystems in the distributed system can receive the topology messages of other subsystems.
And S120, the target subsystem sends a node information acquisition request to any subsystem in other subsystems according to the topology message, so that any subsystem packs the information of all nodes in the distributed system and sends the information to the target subsystem.
After the distributed system is started, each subsystem discovers the other subsystem by a topology discovery mode and acquires the topology network of the distributed system and the information of each subsystem and each node in each subsystem in the topology network, so that each subsystem has a copy of the information of each node in the distributed system. Therefore, by actively sending the node information acquisition request to any subsystem, the information of all nodes in the distributed system can be acquired through any node, so that the problem that the received information is incomplete due to passive reception of the node information sent by each subsystem in the prior art is solved.
In the specific implementation process, each subsystem may have a dedicated communication module for managing information of nodes in each subsystem. Therefore, when any subsystem acquires the node information acquisition request, the node information can be directly packaged through the communication module and transmitted to the target subsystem.
According to the technical scheme of the embodiment, the target subsystem sends the node information acquisition request to any subsystem in other subsystems according to the topology message, and the any subsystem directly packages and sends all information of all nodes according to the request, so that an active information acquisition mode is realized. The problem that information is passively acquired in a mode of establishing unicast channels one by an empty subsystem and a subsystem in the prior art, so that received information is possibly incomplete is solved.
Example two
Fig. 2 is a flowchart of an information obtaining method based on a distributed system according to a second embodiment of the present invention, where on the basis of the second embodiment, optionally, the distributed system includes at least two hosts, and each host includes at least one subsystem; the topology message at least comprises a subsystem name and a host name to which the subsystem belongs; correspondingly, as shown in fig. 2, the method specifically includes:
s210, a target subsystem acquires topology messages sent by other subsystems in the distributed system, wherein the target subsystem is a subsystem newly built by the distributed system according to an information acquisition instruction, and the topology messages are used for realizing mutual discovery among the subsystems.
S220, the target subsystem determines a subsystem set of the other subsystems, which belongs to the same host as the target subsystem, according to the topology messages of the other subsystems.
Because the topology message at least comprises the subsystem name and the host name to which the subsystem belongs, when the target subsystem acquires the topology message of other subsystems, the host name to which the other subsystems belong in the distributed system can be determined according to the host names to which the other subsystems belong, and the subsystem set which belongs to the same host as the target subsystem is determined.
S230, selecting any subsystem from the subsystem set, and sending the node information acquisition request to any subsystem.
The subsystem set comprises all subsystems which are the same as the host to which the target subsystem belongs. Therefore, one subsystem can be arbitrarily selected from the subsystem set, the node information acquisition request is directly sent to the subsystem, and the subsystem can package the information of all the nodes according to the node information acquisition request and send the packaged information to the target subsystem. Therefore, the target subsystem can acquire the information of all the nodes in an active acquisition mode. Because the information of the node is acquired from the subsystems belonging to the same host, the data transmission speed is higher than that of the subsystems among different hosts, and therefore the speed of acquiring the information of the node by the target subsystem is higher.
Optionally, the information of the node at least includes a node name, a node role, a process name to which the node belongs, a host name to which the node belongs, and a subject of the service message.
The node name may be a name identifier of a node, such as a first node, a second node, or the like; the node role can be the embodiment of the specific functions of the node in the distributed system, such as the publisher and/or subscriber of the message. A Process (Process) is a running activity of a program in a computer on some collection of data. In a distributed system, each process may include multiple nodes. The process name to which the node belongs may be the name of the process in which the node participates. The host name may be an identification of a host in the distributed system, such as a computing host or a controlling host. Business messages can be different classifications of message sources (feeds of messages) that are processed. And the service messages can be basic units of communication, each publisher node can publish some service messages to a topic (topic), and subscribers aiming at the topic can receive some service messages under the topic. In this embodiment, the subsystem may package these information of all nodes and send the packaged information to the target subsystem.
Optionally, the target subsystem includes a node to reduce resource occupation and speed up information acquisition in the distributed system.
According to the technical scheme of the embodiment, a subsystem set of the same host as a target subsystem in other subsystems is determined according to topology messages of the other subsystems, any subsystem is selected from the subsystem set, a node information acquisition request is sent to any subsystem, namely the node information acquisition request is directly and actively sent to the subsystem belonging to the same host, and all information of all nodes is directly packaged and sent by the subsystem according to the request. In addition, since data transmission is performed between subsystems in the same host, the scheme of the embodiment obtains information more quickly. Meanwhile, the problem that the received message is possibly incomplete due to the fact that information is passively acquired in the prior art in a mode that unicast channels are established between the empty subsystem and the subsystems one by one is avoided.
EXAMPLE III
Fig. 3 is a schematic structural diagram of an information obtaining apparatus based on a distributed system according to a third embodiment of the present invention, where the distributed system includes at least one subsystem, each subsystem includes at least one node, the apparatus is configured in a target subsystem in the distributed system, and the target subsystem is a subsystem newly built by the distributed system according to an information obtaining instruction, as shown in fig. 3, the apparatus includes:
a topology message obtaining module 310, configured to obtain topology messages sent by other subsystems in a distributed system, where the topology messages are used to implement mutual discovery between the subsystems;
an information request sending module 320, configured to send a node information obtaining request to any subsystem of the other subsystems according to the topology message, so that the any subsystem packages information of all nodes in the distributed system and sends the packaged information to the target subsystem.
Optionally, the distributed system includes at least two hosts, and each host includes at least one subsystem; the topology message at least comprises a subsystem name and a host name to which the subsystem belongs;
correspondingly, the information request sending module 320 includes:
the set determining unit is used for determining a subsystem set of the other subsystems, which belongs to the same host as the target subsystem, according to the topology messages of the other subsystems;
and the request sending unit is used for selecting any subsystem from the subsystem set and sending the node information acquisition request to any subsystem.
Optionally, the information of the node at least includes a node name, a node role, a process name to which the node belongs, a host name to which the node belongs, and a subject of the service message.
Optionally, the target subsystem comprises a node.
The information acquisition device based on the distributed system, provided by the embodiment of the invention, can execute the information acquisition method based on the distributed system provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For details of the technology that are not described in detail in this embodiment, reference may be made to an information acquisition method based on a distributed system according to any embodiment of the present invention.
Example four
Referring to fig. 4, the present embodiment provides an electronic device 400, which includes: one or more processors 420; a storage device 410, configured to store one or more programs, where when the one or more programs are executed by the one or more processors 420, the one or more processors 420 implement an information obtaining method based on a distributed system according to an embodiment of the present invention, where the distributed system includes at least one subsystem, and each subsystem includes at least one node, and the method includes:
a target subsystem acquires topology messages sent by other subsystems in a distributed system, wherein the target subsystem is a subsystem newly built by the distributed system according to an information acquisition instruction, and the topology messages are used for realizing mutual discovery among the subsystems;
and the target subsystem sends a node information acquisition request to any subsystem in the other subsystems according to the topology message, so that the any subsystem packs the information of all nodes in the distributed system and sends the information to the target subsystem.
Of course, those skilled in the art can understand that the processor 420 may also implement the technical solution of the information obtaining method based on the distributed system according to any embodiment of the present invention.
The electronic device 400 shown in fig. 4 is only an example and should not bring any limitation to the function and the scope of use of the embodiments of the present invention.
As shown in fig. 4, electronic device 400 is embodied in the form of a general purpose computing device. The components of electronic device 400 may include, but are not limited to: one or more processors 420, a memory device 410, and a bus 450 that connects the various system components (including the memory device 410 and the processors 420).
The storage 410 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)411 and/or cache memory 412. The electronic device 400 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 413 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, and commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 450 by one or more data media interfaces. Storage 410 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 414 having a set (at least one) of program modules 415, which may be stored, for example, in storage 410, such program modules 415 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination thereof may comprise an implementation of a network environment. The program modules 415 generally perform the functions and/or methods of any of the embodiments described herein.
The processor 420 executes various functional applications and data processing by executing programs stored in the storage device 410, for example, implementing an information acquisition method based on a distributed system according to an embodiment of the present invention.
EXAMPLE five
The present embodiment provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for information acquisition based on a distributed system, where the distributed system includes at least one subsystem, and each subsystem includes at least one node, and the method includes:
a target subsystem acquires topology messages sent by other subsystems in a distributed system, wherein the target subsystem is a subsystem newly built by the distributed system according to an information acquisition instruction, and the topology messages are used for realizing mutual discovery among the subsystems;
and the target subsystem sends a node information acquisition request to any subsystem in the other subsystems according to the topology message, so that the any subsystem packs the information of all nodes in the distributed system and sends the information to the target subsystem.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in an information acquisition method based on a distributed system provided by any embodiment of the present invention.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An information acquisition method based on a distributed system, wherein the distributed system comprises at least one subsystem, and each subsystem comprises at least one node, the method comprising:
a target subsystem acquires topology messages sent by other subsystems in a distributed system, wherein the target subsystem is a subsystem newly built by the distributed system according to an information acquisition instruction, and the topology messages are used for realizing mutual discovery among the subsystems; the target subsystem is a null subsystem;
and the target subsystem sends a node information acquisition request to any subsystem in the other subsystems according to the topology message, so that the any subsystem packs the information of all nodes in the distributed system and sends the information to the target subsystem.
2. The method of claim 1, wherein the distributed system comprises at least two hosts, each host comprising at least one subsystem; the topology message at least comprises a subsystem name and a host name to which the subsystem belongs;
correspondingly, the sending, by the target subsystem, a node information acquisition request to any one of the other subsystems according to the topology message includes:
the target subsystem determines a subsystem set of the other subsystems, which belongs to the same host as the target subsystem, according to the topology message;
and selecting any subsystem from the subsystem set, and sending a node information acquisition request to the any subsystem.
3. The method according to claim 1, wherein the information of the node at least comprises a node name, a node role, a process name to which the node belongs, a host name to which the node belongs, and a subject of a service message to which the node relates.
4. The method of claim 1, wherein the target subsystem comprises a node.
5. An information acquisition apparatus based on a distributed system, the distributed system including at least one subsystem, each subsystem including at least one node, the apparatus being configured to a target subsystem in the distributed system, the target subsystem being a newly-built subsystem of the distributed system according to an information acquisition instruction, the apparatus comprising:
the system comprises a topology message acquisition module, a topology message acquisition module and a topology message processing module, wherein the topology message acquisition module is used for acquiring topology messages sent by other subsystems in a distributed system, and the topology messages are used for realizing mutual discovery among the subsystems; the target subsystem is a null subsystem;
and the information request sending module is used for sending a node information acquisition request to any subsystem in the other subsystems according to the topology message so that the any subsystem packs the information of all nodes in the distributed system and then sends the information to the target subsystem.
6. The apparatus of claim 5, wherein the distributed system comprises at least two hosts, each host comprising at least one subsystem; the topology message at least comprises a subsystem name and a host name to which the subsystem belongs;
correspondingly, the information request sending module includes:
the set determining unit is used for determining a subsystem set of the other subsystems, which belongs to the same host as the target subsystem, according to the topology messages of the other subsystems;
and the request sending unit is used for selecting any subsystem from the subsystem set and sending the node information acquisition request to any subsystem.
7. The apparatus according to claim 5, wherein the information of the node comprises at least a node name, a node role, a process name to which the node belongs, a host name to which the node belongs, and a subject of a service message to which the node relates.
8. The apparatus of claim 5, wherein the target subsystem comprises a node.
9. An electronic device, characterized in that the electronic device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a method for distributed system-based information acquisition as recited in any of claims 1-4.
10. A storage medium containing computer-executable instructions for performing a distributed system-based information acquisition method as claimed in any one of claims 1-4 when executed by a computer processor.
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| CN104539512A (en) * | 2014-12-05 | 2015-04-22 | 百度在线网络技术（北京）有限公司 | Method and device for information transmission in distributed system |
| CN104639415A (en) * | 2015-02-06 | 2015-05-20 | 杭州华三通信技术有限公司 | Transfer method for virtual machine and software-defined network (SDN) controller |
| CN105656653A (en) * | 2014-11-14 | 2016-06-08 | 华为技术有限公司 | Network access method of newly added node in distributed coordination system, device and system |
| CN106921579A (en) * | 2015-12-28 | 2017-07-04 | 华为技术有限公司 | Communication means and device based on business function chain SFC |
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| US10333821B2 (en) * | 2014-11-25 | 2019-06-25 | Vmware, Inc. | Method and system for optimizing network traffic in a distributed system with a point of convergence |
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| CN101945043A (en) * | 2010-09-06 | 2011-01-12 | 华南理工大学 | Topology discovery system of next generation Internet based on IPv6 (Internet Protocol Version 6) and realizing method thereof |
| CN105656653A (en) * | 2014-11-14 | 2016-06-08 | 华为技术有限公司 | Network access method of newly added node in distributed coordination system, device and system |
| CN104539512A (en) * | 2014-12-05 | 2015-04-22 | 百度在线网络技术（北京）有限公司 | Method and device for information transmission in distributed system |
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