CN107342942B - Information transmission method and device for multi-node controller cluster - Google Patents
Information transmission method and device for multi-node controller cluster Download PDFInfo
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- CN107342942B CN107342942B CN201710541787.6A CN201710541787A CN107342942B CN 107342942 B CN107342942 B CN 107342942B CN 201710541787 A CN201710541787 A CN 201710541787A CN 107342942 B CN107342942 B CN 107342942B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 72
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/48—Routing tree calculation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/30—Routing of multiclass traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
- H04L45/308—Route determination based on user's profile, e.g. premium users
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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
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1044—Group management mechanisms
Abstract
The invention discloses an information transmission method and device of a multi-node controller cluster, which are used for transmitting event request information generated by control nodes to a main control node based on a balanced binary tree dynamically formed according to IDs (identification) of the control nodes; the transmission process of the event request information along the balanced binary tree specifically comprises the following steps: when each control node in the balanced binary tree receives the event request information, whether the control node is a main control node is judged; if not, the control node forwards the event request information to the designated control node according to the position of the control node in the balanced binary tree. According to the method and the device, the transmission path is defined through the dynamically formed balanced binary tree, and when the control node is abnormal, a new balanced binary tree can be dynamically formed again, namely the transmission path is planned again, so that the effectiveness of the transmission path and the reliability of data transmission are improved; meanwhile, event information is transmitted through a balanced binary tree strategy, so that route searching overhead can be saved, and the correctness of event transmission is ensured.
Description
Technical Field
The present invention relates to the field of server storage technologies, and in particular, to an information transmission method and apparatus for a multi-node controller cluster.
Background
With the increase of data to be processed in various industries and the improvement of data processing real-time performance, a single-node controller storage system cannot meet the requirements of users.
A cluster system composed of multi-node controllers is developed, and the multi-node controller cluster system has the characteristics of high cost performance, high availability and high expansibility, and can meet the real-time requirement of mass data processing in performance. The controllers are interconnected through an optical fiber network to form a cluster system consisting of the controllers, and the cluster system as a whole provides application services for users. In the multi-node controller cluster system, in order to ensure the consistency of processing information in cluster nodes, a request needs to be sent to a boss node, the boss node initiates an event execution process, and finally, the success and failure of the execution result of the round are determined according to the execution result of each node so as to determine to process the next event or execute rollback operation.
Event information transmission in an existing multi-node controller cluster is generally based on routing, that is, each control node transmits event information to a boss node in a routing mode. However, routing transmission requires finding a route, additional routing overhead is required, and the uncertainty of the routing path reduces the effectiveness of the transmission path and the correctness of event transmission.
Disclosure of Invention
The invention aims to provide an information transmission method and an information transmission device for a multi-node controller cluster, and aims to solve the problems of low event transmission accuracy and low transmission path effectiveness of the conventional multi-controller cluster.
In order to solve the above technical problem, the present invention provides an information transmission method for a multi-node controller cluster, including:
transmitting event request information generated by the control nodes to the main control node based on a balanced binary tree dynamically formed according to the IDs of the control nodes;
wherein the transmission process of the event request information along the balanced binary tree specifically includes:
when each control node in the balanced binary tree receives the event request information, whether the control node is the main control node is judged;
if not, the control node forwards the event request information to a designated control node according to the position of the control node in the balanced binary tree, wherein the designated control node is a father control node or a left child control node.
Optionally, after transmitting the event request information generated by the control node to the master control node, the method further includes:
and the main control node processes the event request information and broadcasts an execution instruction to each control node.
Optionally, after the master control node processes the event request information and broadcasts an execution instruction to each of the control nodes, the method further includes:
each control node executes the event corresponding to the event request information according to the execution instruction to obtain an execution result;
each of the control nodes transmits the execution result to the master control node along the balanced binary tree.
Optionally, after the each of the control nodes transmits the execution result to the master control node along the balanced binary tree, the method further includes:
the master control node judges whether the event is executed successfully or not according to the received execution result;
if yes, executing the next event;
if not, executing the rollback operation.
In addition, the invention also provides an information transmission device of the multi-node controller cluster, which comprises the following components:
the system comprises a balanced binary tree transmission strategy module, a main control node and a plurality of event request information transmission strategy modules, wherein the balanced binary tree transmission strategy module is used for transmitting event request information generated by the control nodes to the main control node based on a balanced binary tree dynamically formed according to the IDs of the control nodes;
wherein the transmission process of the event request information along the balanced binary tree specifically includes:
when each control node in the balanced binary tree receives the event request information, whether the control node is the main control node is judged;
if not, the control node forwards the event request information to a designated control node according to the position of the control node in the balanced binary tree, wherein the designated control node is a father control node or a left child control node.
Optionally, the method further comprises:
and the main control node broadcasting module is used for processing the event request information and broadcasting an execution instruction to each control node.
Optionally, the method further comprises:
the control node execution module is used for executing the event corresponding to the event request information according to the execution instruction to obtain an execution result;
and the control node result feedback module is used for transmitting the execution result to the main control node along the balanced binary tree.
Optionally, the method further comprises:
the main control node judging module is used for judging whether the event is executed successfully or not according to the received execution result;
the execution module is used for executing the next event if the execution module is yes;
and the rollback module is used for executing rollback operation if the answer is not positive.
The invention provides an information transmission method and device of a multi-node controller cluster, which are characterized in that event request information generated by control nodes is transmitted to a main control node based on a balanced binary tree dynamically formed according to IDs of the control nodes; the transmission process of the event request information along the balanced binary tree specifically comprises the following steps: when each control node in the balanced binary tree receives the event request information, whether the control node is a main control node is judged; if not, the control node forwards the event request information to the designated control node according to the position of the control node in the balanced binary tree, and the designated control node is a father control node or a left child control node. According to the method and the device, the transmission path is defined through the dynamically formed balanced binary tree, and when the control node is abnormal, a new balanced binary tree can be dynamically formed again, namely the transmission path is planned again, so that the effectiveness of the transmission path and the reliability of data transmission are improved; meanwhile, event information is transmitted by balancing a binary tree strategy, so that the cost of route searching can be saved, and the correctness of event transmission is ensured.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flowchart of an embodiment of an information transmission method for a multi-node controller cluster according to the present invention;
FIG. 2 is a schematic diagram of a balanced binary tree according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of an information transmission apparatus of a multi-node controller cluster according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating an embodiment of a method for transmitting information of a multi-node controller cluster according to the present invention, where the method includes the following steps:
step 101: transmitting event request information generated by the control nodes to the main control node based on a balanced binary tree dynamically formed according to the IDs of the control nodes;
wherein the transmission process of the event request information along the balanced binary tree specifically includes:
when each control node in the balanced binary tree receives the event request information, whether the control node is the main control node is judged;
if not, the control node forwards the event request information to a designated control node according to the position of the control node in the balanced binary tree, wherein the designated control node is a father control node or a left child control node.
It can be understood that the above-mentioned main control node is the control node with the smallest ID in the balanced binary tree; the balanced binary tree may be dynamically formed according to each control node ID in the cluster, and the control node ID may be a number, for example, node 1, node 2, and the like. After a balanced binary tree is formed, the transmission path is correspondingly planned. Specifically, referring to fig. 2, fig. 2 is a schematic diagram of a balanced binary tree according to an embodiment of the present invention.
As shown in fig. 2, the balanced binary tree includes 7 control nodes, which are 1, 2, 3, 4, 6, 7, and 8 in the figure, where 1 is a boss node, i.e., a master control node, 2 is a parent control node of 1 and 3, 7 is a parent control node of 6 and 8, and 4 is a parent control node of 2 and 7, which are root nodes of the balanced binary tree. When 8 generates a request event, event request information needs to be sent to 7; then 7, judging whether the node is a boss node according to the position of the node, and sending the event request information to 4; then 4, sending the event request information to the left child node 2; and finally, 2, sending the event request information to the boss node 1 to complete the transmission process of the event information.
When one or more nodes in the multi-node controller cluster are abnormal, the balanced binary tree dynamically forms a new balanced binary tree according to the normal nodes again, namely, a transmission path is re-planned, so that the reliability and the effectiveness of information transmission are ensured.
The position of the control node in the balanced binary tree may be specifically whether the control node is on the left side or the right side of the balanced binary tree, and specifically which position the control node is located. Specifically, each control node may obtain the formed balanced binary tree to know the location of itself, and then may determine whether itself is a boss node, and forward the event request information to the parent control node or to the left child node. For example, node 7 in fig. 2 forwards the event request message to the parent control node 4, and node 2 forwards the event request message to the left child control node, depending on where it is located.
In some embodiments of the present invention, after receiving the event request information sent by the control node, the main control node may determine whether to execute an event corresponding to the event request information, and after transmitting the event request information generated by the control node to the main control node, the method may further include: and the main control node processes the event request information and broadcasts an execution instruction to each control node.
It will be appreciated that the master control node may decide whether to execute the corresponding event by the event request message producer or by all nodes within the cluster, as desired.
Therefore, in some embodiments of the present invention, after the master control node processes the event request information and broadcasts the execution instruction to each control node, the method may further include: each control node executes the event corresponding to the event request information according to the execution instruction to obtain an execution result; each of the control nodes transmits the execution result to the master control node along the balanced binary tree.
The plurality of control nodes all execute corresponding events to obtain a plurality of execution results, the plurality of execution results may be returned to the main control node along the balanced binary tree, and a transmission process of the execution results in the balanced binary tree may be similar to a transmission process of the event request information, which is not described herein again.
In some embodiments of the present invention, after the control nodes transmit the execution result to the master control node along the balanced binary tree, the method may further include: the master control node judges whether the event is executed successfully or not according to the received execution result; if yes, executing the next event; if not, executing the rollback operation.
In the information transmission method for a multi-node controller cluster provided in this embodiment, event request information generated by a control node is transmitted to a master control node based on a balanced binary tree dynamically formed according to IDs of the control nodes; the transmission process of the event request information along the balanced binary tree specifically comprises the following steps: when each control node in the balanced binary tree receives the event request information, whether the control node is a main control node is judged; if not, the control node forwards the event request information to the designated control node according to the position of the control node in the balanced binary tree, and the designated control node is a father control node or a left child control node. The method defines a transmission path through the dynamically formed balanced binary tree, and can dynamically form a new balanced binary tree again when the control node is abnormal, namely, the transmission path is planned again, so that the effectiveness of the transmission path and the reliability of data transmission are improved; meanwhile, event information is transmitted by balancing a binary tree strategy, so that the cost of route searching can be saved, and the correctness of event transmission is ensured.
In the following, the information transmission apparatus of a multi-node controller cluster according to an embodiment of the present invention is introduced, and the information transmission apparatus of a multi-node controller cluster described below and the information transmission method of a multi-node controller cluster described above may be referred to correspondingly.
Referring to fig. 3, fig. 3 is a schematic block diagram of an information transmission apparatus of a multi-node controller cluster according to an embodiment of the present invention, where the apparatus includes:
a balanced binary tree transmission strategy module 31, configured to transmit event request information generated by the control node to the master control node based on a balanced binary tree dynamically formed according to each control node ID;
the transmission process of the event request information along the balanced binary tree specifically includes:
when each control node in the balanced binary tree receives the event request information, whether the control node is a main control node is judged;
if not, the control node forwards the event request information to the designated control node according to the position of the control node in the balanced binary tree, and the designated control node is a father control node or a left child control node.
In some embodiments of the present invention, the apparatus may further include:
and the main control node broadcasting module is used for processing the event request information and broadcasting the execution instruction to each control node.
In some embodiments of the present invention, the apparatus may further include:
the control node execution module is used for executing the event corresponding to the event request information according to the execution instruction to obtain an execution result;
and the control node result feedback module is used for transmitting the execution result to the main control node along the balanced binary tree.
In some embodiments of the present invention, the apparatus may further include:
the main control node judging module is used for judging whether the event is executed successfully or not according to the received execution result;
the execution module is used for executing the next event if the execution module is yes;
and the rollback module is used for executing rollback operation if the answer is not positive.
The information transmission device of the multi-node controller cluster provided by this embodiment defines the transmission path through the dynamically formed balanced binary tree, and when the control node is abnormal, a new balanced binary tree can be dynamically formed again, that is, the transmission path is re-planned, so that the effectiveness of the transmission path and the reliability of data transmission are improved; meanwhile, event information is transmitted by balancing a binary tree strategy, so that the cost of route searching can be saved, and the correctness of event transmission is ensured.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The information transmission method and device for a multi-node controller cluster provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. An information transmission method of a multi-node controller cluster is characterized by comprising the following steps:
transmitting event request information generated by the control nodes to the main control node based on a balanced binary tree dynamically formed according to the IDs of the control nodes;
the master control node processes the event request information and broadcasts an execution instruction to each control node;
wherein the transmission process of the event request information along the balanced binary tree specifically includes:
when each control node in the balanced binary tree receives the event request information, whether the control node is the main control node is judged;
if not, the control node forwards the event request information to a designated control node according to the position of the control node in the balanced binary tree, wherein the designated control node is a father control node or a left child control node.
2. The information transmission method according to claim 1, wherein after the master control node processes the event request information and broadcasts an execution instruction to each of the control nodes, the method further comprises:
each control node executes the event corresponding to the event request information according to the execution instruction to obtain an execution result;
each of the control nodes transmits the execution result to the master control node along the balanced binary tree.
3. The information transmission method according to claim 2, further comprising, after the respective control nodes transmit the execution results to the master control node along the balanced binary tree, the following:
the master control node judges whether the event is executed successfully or not according to the received execution result;
if yes, executing the next event;
if not, executing the rollback operation.
4. An information transmission apparatus of a multi-node controller cluster, comprising:
the system comprises a balanced binary tree transmission strategy module, a main control node and a plurality of event request information transmission strategy modules, wherein the balanced binary tree transmission strategy module is used for transmitting event request information generated by the control nodes to the main control node based on a balanced binary tree dynamically formed according to the IDs of the control nodes;
the main control node broadcasting module is used for processing the event request information and broadcasting an execution instruction to each control node;
wherein the transmission process of the event request information along the balanced binary tree specifically includes:
when each control node in the balanced binary tree receives the event request information, whether the control node is the main control node is judged;
if not, the control node forwards the event request information to a designated control node according to the position of the control node in the balanced binary tree, wherein the designated control node is a father control node or a left child control node.
5. The information transmission apparatus according to claim 4, characterized by further comprising:
the control node execution module is used for executing the event corresponding to the event request information according to the execution instruction to obtain an execution result;
and the control node result feedback module is used for transmitting the execution result to the main control node along the balanced binary tree.
6. The information transmission apparatus according to claim 5, characterized by further comprising:
the main control node judging module is used for judging whether the event is executed successfully or not according to the received execution result;
the execution module is used for executing the next event if the execution module is yes;
and the rollback module is used for executing rollback operation if the answer is not positive.
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