CN108347350A - A kind of communication means and device - Google Patents

Abstract

This application discloses a kind of communication means and devices, are applied to the block catenary system comprising multiple nodes, the method includes：At least one of the multiple node node includes neighbor node；The neighbor node is the node with the node direct communication；The method includes：For at least one neighbor node, the node determines the network connection state value between the node and the neighbor node by there is connection message；If it is determined that the network connection state value is more than first threshold, then stop carrying out data transmission by connectionless message and the neighbor node.

Description

A communication method and device

technical field

The present application relates to the technical field of communication, and in particular to a communication method and device.

Background technique

In modern life, it is often necessary to prove the existence of a certain data (thing), that is, the storage of data, such as written articles, historical operation instructions, signed contracts, etc. At this time, it needs to be certified by a third-party certification agency , this certification method has extremely high requirements on the credibility of the certification body, and the operation is cumbersome, the cost is high, and the timeliness is poor. In order to solve the above-mentioned various problems in data storage through third-party certification agencies, there have been many solutions for data storage through blockchain, which can be solved well by using the decentralized structure and immutable characteristics of blockchain. the above problems. The currently popular blockchain technology is based on a distributed network on a global scale, which is limited by external operators and transmission distances, and lacks effective control.

With the development of the business, the transaction volume of the transaction system is gradually increasing, and there will be a transaction peak in a certain period of time. When a large amount of transaction data floods into the blockchain network, the broadcasting capability of the blockchain network and the transaction data processing of the accounting nodes If there is a bottleneck in the capacity of the network, the business cannot run normally, and even a broadcast storm will occur.

In addition, when sending messages through network-wide broadcast, due to data transmission on the Internet, there are inevitable network problems such as delays. The current distributed network currently does not have an error correction mechanism, and it is difficult to make up for packet loss and error packets. Therefore, how to improve the performance of distributed data transmission and improve the reliability and credibility of data storage certificates is an urgent problem to be solved.

Contents of the invention

Embodiments of the present application provide a communication method and device, which are used to distribute data transmission performance and improve processing efficiency of a distributed network.

An embodiment of the present application provides a communication method, which is applied to a blockchain system including multiple nodes, at least one node of the multiple nodes includes a neighbor node; the neighbor node is a node that directly communicates with the node; The methods include:

For at least one neighbor node, the node determines the network connection state value between the node and the neighbor node through a connection message; if it is determined that the network connection state value exceeds the first threshold, then stop passing the connectionless message The text performs data transmission with the neighbor node.

A possible implementation manner, the node determines the network connection status value between the node and the neighbor node through a connection message, including:

If it is determined that the network connection state with the neighbor node is a normal state, then determine that the network connection state value remains unchanged;

If it is determined that the network connection status with the neighbor node is abnormal, then increase the network connection status value.

A possible implementation manner, after the stop of data transmission with the neighbor node, further includes:

If it is determined that the network connection state with the neighbor node returns to normal, the network connection state value is decayed with time according to a preset rule.

A possible implementation, the method also includes:

If it is determined that the network connection status value is less than or equal to the second threshold, data transmission is performed again between the neighbor node and the node by using a connectionless message.

A possible implementation manner, the node determines the network connection status value between the node and the neighbor node through a connection message, including:

The node sends a heartbeat packet to the neighbor node;

The node determines whether the network connection status with the neighbor node is normal according to whether it receives the heartbeat response returned by the neighbor node at a predetermined time.

An embodiment of the present application provides a communication device, which is applied to a blockchain system including multiple nodes, at least one of the multiple nodes includes a neighbor node; the neighbor node is a node that directly communicates with the node; The devices include:

An acquisition unit, configured to determine a network connection status value between the node and the neighbor node through a connected message for at least one neighbor node;

A processing unit, configured to stop data transmission with the neighbor node through a connectionless message if it is determined that the network connection state value exceeds a first threshold.

In a possible implementation manner, the obtaining means is specifically configured to: if it is determined that the network connection status with the neighbor node is normal, then determine that the network connection status value remains unchanged; if it is determined that the network connection status with the neighbor node is If the connection status is abnormal, then increase the network connection status value.

A possible implementation manner, the processing unit is further configured to:

If it is determined that the network connection state with the neighbor node returns to normal, the network connection state value is decayed with time according to a preset rule.

A possible implementation manner, the processing unit is further configured to:

If it is determined that the network connection status value is less than or equal to the second threshold, data transmission is performed again between the neighbor node and the node by using a connectionless message.

In a possible implementation manner, the acquiring unit is further configured to: the node sends a heartbeat packet to the neighbor node; Whether the network connection status of the neighbor node is normal.

To sum up, the embodiments of the present application provide a communication method and device, which are applied to a blockchain system including a plurality of nodes, at least one of the plurality of nodes includes a neighbor node; the neighbor node is a The node directly communicates with the node; the method includes: for at least one neighbor node, the node determines the network connection status value between the node and the neighbor node through a connected message; if the network connection is determined If the state value exceeds the first threshold, data transmission with the neighbor node is stopped. In the embodiment of the present application, the monitoring of the network status of neighboring nodes can be realized through connectionless messages in the blockchain system; then the network connection status value between the node and the neighbor node can be determined; when the network connection status value exceeds the first When the threshold is reached, the data transmission between the two is stopped, so as to suppress the neighboring nodes with poor network status, effectively remove the occupation of network resources by sending invalid data, and improve the utilization rate of network resources.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of a block chain system architecture provided by an embodiment of the present application;

FIG. 2 is a schematic flowchart of a communication method provided in an embodiment of the present application;

FIG. 3 is a schematic flowchart of a communication method provided in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the application, not all of them. . Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Blockchain is a brand-new technology born out of the Bitcoin technology that appeared in 2008. It provides a decentralized credit establishment paradigm that does not require trust accumulation. In this paradigm, anyone who does not know each other can join an open and transparent database, through point-to-point bookkeeping, data transmission, certification or contract, without any intermediary to reach a credit consensus. This open and transparent database includes all past transaction records, historical data and other relevant information. All information is stored in a distributed manner and is transparently searchable, and it is guaranteed that it cannot be illegally tampered with in a cryptographic protocol.

Blockchain technology is a technical solution for collectively maintaining a reliable database through decentralization and trustlessness. More generally speaking, blockchain technology is a way for all people to participate in bookkeeping.

In the blockchain network, a bookkeeping node in the blockchain network will receive the transaction data sent by the server, and the bookkeeping node will broadcast the received transaction data to other bookkeeping nodes. After receiving a certain amount of transaction data, it will perform bookkeeping, and the bookkeeping node that successfully bookkeeping will generate a block of transaction data for other nodes in the blockchain network to download the block, so as to achieve the goal of all people participating in bookkeeping Way. The blockchain broadcast method is mainly used on the same switch or adjacent switches, with low delay and relatively high reliability. Considering the billing interval, the transfer of existing blockchain information can be shared through multicast, that is, user equipment of the same type of data is used as a group of broadcast nodes to share the same type of data, which can save server load.

In order to better understand the overall system architecture in this solution, the overall architecture of the system is described below. The architecture diagram of the system is shown in Figure 1 below:

Fig. 1 exemplarily shows a blockchain system provided by an embodiment of the present application, including multiple nodes. Wherein, the plurality of nodes form a "decentralized" system through a peer-to-peer network (Peer to Peer, P2P) dynamic networking. Figure 1 is a schematic diagram of a feasible block chain system architecture provided by the embodiment of the present application. As shown in Figure 1, the block chain system includes node 0, node 1, node 2, node 3 and node 4, the five The nodes are peers to each other, and form a decentralized system through P2P dynamic networking. The straight lines in FIG. 1 indicate the data transmission relationship between the nodes, and the neighbor nodes of each node are the nodes that directly communicate with the node. Taking node 2 as an example, the neighbor nodes of node 2 are node 0, node 1 and node 3; node 2 broadcasts a message to the neighbor nodes of node 2, and the broadcast message of node 2 can be received by node 0, node 1 and node 3.

When using the blockchain system provided by the embodiment of this application to write data, any node in the multiple nodes of the system can be used as a receiving node to receive the data to be written; the receiving node sends the data to be written to other nodes Data write request; the data write request includes the data to be written; the data write request is used to instruct any node in other nodes to store the data to be written into their respective data sets to be written, that is, for other nodes Any node of , after receiving the data write request, obtains the data to be written and stores them in their respective data sets to be written.

Taking the block chain system shown in Figure 1 as an example, node 2 receives data to be written as a receiving node; node 2 stores the data to be written in its local data set to be written, and sends data to node 0, node 1 and Node 3 sends a data write request; the data write request includes the data to be written; node 0, node 1 and node 3 store the data to be written in the data write request into their respective data sets to be written, and node 1 Or node 3 continues to forward the data writing request to node 4; node 4 receives the first data writing request from node 1 and node 3, and stores the data to be written in the data writing request into the waiting data of node 4 Write into the data set. After the above process, each peer node in the system has received the data to be written.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various distributed systems, such as the Bitcoin system and the like. In the embodiment of the present application, obtaining the data sent by multiple servers may be sent immediately after the server determines that it needs to be uploaded, or periodically sent, or periodically obtained from each server. The stored data can be an object, for example, transfer, the object will include information such as time, account number of both parties to the transfer, transfer amount, etc.; if it is a text record, the object will include the content of the information and the identity of the information sender; the storage type can be It is file storage, cache, relational data storage, non-relational data storage, etc., used to ensure the availability of data. The types of storage include but are not limited to these types, and can also be other types.

At present, blockchain technology is based on a distributed network on a global scale. This technology generally uses broadcast or multicast to transmit data, which is limited by external operators and transmission distance. With the development of business, the transaction volume of the transaction system is gradually increasing. There will be a transaction peak in a certain period of time. When a large amount of transaction data floods into the blockchain network, the broadcasting capability of the blockchain network and the ability of the accounting nodes to process transaction data will become bottlenecks, causing the business to fail to run normally, or even Generate a broadcast storm. If the behavior of effectively controlling broadcast flooding is not carried out, it may lead to blockage of data transmission in severe cases.

The existing technology can guarantee the transaction processing capacity in the network by giving up recording part of the data through custom rules, which may lead to the loss of part of the transaction data.

Due to the delay of more than 1ms per 10 kilometers during data transmission on the Internet, the problem of packet loss and error occurs. Compared with unicast protocols, distributed networks have no error correction mechanism, and it is difficult to make up for packet loss and error packets. Therefore, there is a risk of distributed data loss, and the data cannot be retrieved.

Figure 2 exemplarily shows a schematic flow diagram of a communication method provided by an embodiment of the present application, which is applied to a blockchain system including multiple nodes, at least one of the multiple nodes includes a neighbor node; the neighbor node Be the node of direct communication with described node; As shown in Figure 2, comprise the following steps:

Step 201: For at least one neighbor node, the node determines the network connection status value between the node and the neighbor node through a connected message;

Step 202: If it is determined that the network connection state value exceeds the first threshold, stop data transmission with the neighbor node through a connectionless message.

Wherein, the connected message is a message that the sender must establish a reliable connection with the receiver before officially sending and receiving data, and confirm that the receiver can correctly receive the data sent by the sender. For example, a transmission control protocol (Transmission Control Protocol, TCP) message. The connectionless message is a response message in which the sender does not need to establish a reliable connection with the receiver, that is, does not need to receive the received data returned by the receiver, so as to determine whether the receiver receives the data correctly. For example, a User Datagram Protocol (User Datagram Protocol, UDP) packet.

Before step 201, at least one neighbor node of the node may be determined through the following steps:

Step 1, the node sends a TCP registration request message to a neighbor node;

Step 2, after the neighbor node receives the TCP registration request message, send a response message of the TCP registration request to the node;

Step 3, if the node receives the response message of the TCP registration request sent by the neighbor node within a predetermined time, it determines that the neighbor node is the neighbor node of the node; the node sends an empty packet request to the at least one neighbor node.

Step 4. The at least one neighbor node sends an empty packet request to the node to end the short connection session.

In step 1, the node can determine the neighbor nodes according to the neighbor nodes in the preset neighbor node list, or determine the neighbor nodes of the node according to the node that performed data transmission with the node last time, which is not done here limited.

In step 3, by determining whether the neighbor node returns a response message of the TCP registration request, it is determined whether the neighbor node is online at present, and then the neighbor node of the node at the time of data transmission is determined.

For example, in conjunction with Figure 1, node 2 sends a TCP registration request message to node 0, node 1, and node 3. If node 2 receives the response message of the TCP registration request of node 0 and node 1 within a predetermined time, it does not receive The response message of the TCP registration request of node 3 can determine that the current neighbor nodes of node 2 are node 0 and node 1 .

The above is an example based on TCP as an example of a short connection session. In the specific implementation process, the registered neighbor node can also be kept in a long connection state for the node, so as to monitor the connection between the node and the neighbor node in real time. Connection Status.

In order to avoid the problem of time delay caused by TCP transmission data (the time required for a data packet to travel from one node to another node), the User Datagram Protocol (UDP) can be used instead of sending a block using TCP. data needed.

Since UDP is a connectionless transmission protocol type, the sending end cannot determine whether the receiving end has correctly received the data sent by the sending end. Therefore, when the network status of the receiving end is poor, the sending end still continues to send data packets to the receiving end. As a result, a large amount of network resources are occupied.

In the embodiment of the present application, in step 201, the following steps may be included:

Step 1, the node sends a heartbeat packet to the neighbor node;

Step 2: The node determines whether the network connection status of the neighbor node is normal according to whether it receives the heartbeat response returned by the neighbor node at a predetermined time.

In step 1, the heartbeat packet may be sent periodically or in other forms, which is not limited here.

In the specific implementation process, it may include:

If the node determines to receive the heartbeat response returned by the neighbor node at a predetermined time, it determines that the network connection status of the neighbor node is a normal state.

If the node determines that the heartbeat response returned by the at least one neighbor node is received within the first predetermined time and less than the second predetermined time, it is determined that the network connection state of the neighbor node is an abnormal state, and the abnormal state is a network connection state. Delay.

If the node determines that the heartbeat response returned by the neighbor node is received after a second predetermined time, it determines that the network connection status of the neighbor node is an abnormal state, and the abnormal state is an unconnectable state.

After the node determines the neighbor nodes of the node, it may initialize the network connection state value of the neighbor node, for example, the network connection state value of the neighbor node may be set to 0.

In step 202, including:

A possible implementation manner, if it is determined that the network connection state with the neighbor node is in a normal state, then determine that the network connection state value remains unchanged;

A possible implementation manner is to increase the value of the network connection status if it is determined that the network connection status with the neighbor node is abnormal.

In a specific implementation process, it may be by adding a fixed value, or it may be a value that changes with time, which is not limited here.

For example, if the node 2 determines that the connection status of the node 1 is abnormal at a monitoring moment after initialization, the network connection status value of the node 1 may be increased to 100. The monitoring time may be the time when the node determines the network status of the at least one neighbor node from the at least one neighbor node. At the next monitoring moment, if node 2 determines that the connection status of node 1 is still in an abnormal state at that moment, it may increase the network connection status value of node 1 to 200.

If the first threshold is 180, it is determined that the network connection status value of node 1 exceeds the first threshold, so node 2 stops data transmission to node 1 .

A possible implementation, including:

Step 1, the node stops sending data to the neighbor node;

Step 2, the node stops receiving the data sent by the neighbor node to the node;

By stopping sending data to the neighbor nodes, unnecessary network resource overhead is saved. Moreover, for the data sent from the neighbor node to the node, due to the poor network status, the reliability of the data obtained from the neighbor node is also low, therefore, the data is discarded, reducing the need for the node to The processing of unnecessary data saves the resources of the nodes, increases the broadcast capability of the blockchain network and the ability of the accounting nodes to process transaction data, and improves the processing efficiency of each node in the blockchain.

A possible implementation method includes: if it is determined that the network connection status between the neighbor node and the node is network delay, a network status alarm may be sent to the neighbor node, and the neighbor node is notified to stop sending data to the node .

By sending alarms, it is possible to further improve the utilization of blockchain network resources, increase the broadcasting capability of the blockchain network and the ability of accounting nodes to process transaction data.

To reduce the waiting time for the neighbor node to resume data transmission by recovering the normal neighbor node after the network state is abnormal, it can be achieved in the following ways:

A possible implementation manner, after the stop of data transmission with the neighbor node, further includes:

If it is determined that the network connection status between the node and the neighbor node returns to normal, the network connection status value is decayed with time according to a preset rule.

In a specific implementation process, the preset rule may be in the form of exponential decay or other forms, which are not limited here.

A possible implementation, the method also includes:

If it is determined that the network connection state value of the neighbor node that stops data transmission with the node is less than or equal to the second threshold, data transmission is performed again through UDP between the neighbor node and the node.

Wherein, in order to avoid frequently determining whether the neighbor node performs data transmission and affecting the normal operation of the blockchain, the second threshold is smaller than the first threshold.

In a possible implementation, in order to avoid the data transmission of neighbor nodes whose network connection status is normal and cannot be restored for a long time, a third threshold of the network connection status value may be set, and when the network status value reaches the third threshold, the neighbor The node's network status value no longer increases. The third threshold is greater than the first threshold.

For example, at time t1, node 2 determines that the network status of node 1 is abnormal, and then increases the network status value of node 1 to 100; at time t2, node 2 determines that the network status of node 1 is abnormal, and then adds The network status value of node 1 is increased to 200; at time t3, node 2 determines that the network status of node 1 is abnormal, and then increases the network status value of node 1 to 300; at this time, the network status value of node 1 exceeds the first threshold (230 ), then stop data transmission between node 1 and node 2 through UDP packets. At time t4, node 2 determines that the network state of node 1 returns to normal, then the network state value of node 1 is attenuated according to preset rules; at time t5, node 2 determines that the network state value of node 1 is less than the second threshold (180), Data transmission will be performed between node 1 and node 2 through UDP packets again.

A possible implementation manner, before the stopping of data transmission with the neighbor node, further includes:

If it is determined that the network connection status between the node and the neighbor node returns to normal, the network connection status value is decayed with time according to a preset rule.

For example, if the node 2 determines that the connection status of the node 1 is abnormal at a monitoring moment after initialization, the network connection status value of the node 1 may be increased to 100, for example. The monitoring time may be the time when the node determines the network status of the at least one neighbor node from the at least one neighbor node. At the next monitoring moment, if node 2 determines that the connection status of node 1 is normal at that moment, it can attenuate the network connection status value of node 1 according to preset rules. For example, at the next monitoring moment, the network connection status of node 1 The value decays to 80.

For example, referring to Fig. 1, as shown in Fig. 3, at time t1, node 2 determines that the network status of node 1 is abnormal, and increases the network status value of node 1 to 100; between t1 and t2, if If it is determined that the network status of node 1 is back to normal, the network status value of node 1 is attenuated according to the preset rules; at time t2, the network status value of node 1 is attenuated to 80, and node 2 determines that the network status of node 1 is abnormal, then Increase the network state value of node 1 to 180; between t2 and t3, if it is determined that the network state of node 1 returns to normal, the network state value of node 1 will be attenuated according to the preset rules; at time t3, node 1 The network status value of node 1 decays to 150, node 2 determines that the network status of node 1 is abnormal, then increases the network status value of node 1 to 250; at this time, the network status value of node 1 exceeds the first threshold (230), then stop Data transmission is performed between node 1 and node 2 through UDP packets. At time t4, node 2 determines that the network status of node 1 has returned to normal, then the network status value of node 1 is attenuated according to the preset rules; If the status value is less than the second threshold (180), data transmission will be performed between node 1 and node 2 through UDP packets again.

An embodiment of the present application provides a schematic flow diagram of a communication method, which is applied to a blockchain system including multiple nodes, at least one of the multiple nodes includes a neighbor node; the neighbor node directly communicates with the node node; including the following steps:

Step 1, the node sends a TCP registration request message to a neighbor node;

Step 2. After receiving the TCP registration request message, the preset neighbor node sends a TCP registration request response message to the node;

Step 3: If the node receives the response message of the TCP registration request sent by the neighbor node within a predetermined time, it determines that the neighbor node is the neighbor node of the node.

Step 4, the node sends a heartbeat packet to at least one neighbor node of the node;

Step 5: The node determines whether the network connection status of the at least one neighbor node is normal according to whether it receives a heartbeat response returned by the at least one neighbor node at a predetermined time.

Step 6. For at least one neighbor node, the node determines a network connection status value between the node and the neighbor node through the determined network connection status of the at least one neighbor node;

Among them, including:

If it is determined that the network connection state of the neighbor node is a normal state, then determine that the network connection state value of the neighbor node remains unchanged;

If it is determined that the network connection status of the neighbor node is abnormal, then increasing the network connection status value of the neighbor node;

Step 7: If it is determined that the network connection state value exceeds the first threshold, stop data transmission with the neighbor node.

Step 8: If it is determined that the network connection status between the node and the neighbor node returns to normal, the network connection status value of the neighbor node is decayed with time according to a preset rule.

Step 9: If it is determined that the network connection status value with the neighbor node is less than or equal to the second threshold, re-transmit data between the neighbor node and the node through UPD messages.

An embodiment of the present application provides a communication device, which is applied to a blockchain system including multiple nodes, at least one of the multiple nodes includes a neighbor node; the neighbor node is a node that directly communicates with the node; As shown in Figure 4, the device includes:

The obtaining unit 401 is configured to determine, for at least one neighbor node, a network connection status value between the node and the neighbor node through a connected message;

The processing unit 402 is configured to, if it is determined that the network connection state value exceeds a first threshold, stop data transmission with the neighbor node through a connectionless message.

In a possible implementation manner, the obtaining means 401 is specifically configured to: if it is determined that the network connection status with the neighbor node is normal, then determine that the network connection status value remains unchanged; if it is determined that the network connection status with the neighbor node is If the status is abnormal, then increase the network connection status value.

In a possible implementation manner, the processing unit 402 is further configured to:

If it is determined that the network connection state with the neighbor node returns to normal, the network connection state value is decayed with time according to a preset rule.

In a possible implementation manner, the processing unit 402 is further configured to:

If it is determined that the network connection status value is less than or equal to the second threshold, data transmission is performed again between the neighbor node and the node by using a connectionless message.

In a possible implementation manner, the acquiring unit 401 is also configured to: the node sends a heartbeat packet to the neighbor node; Whether the network connection status of the node is normal.

To sum up, the embodiments of the present application provide a communication method and device, which are applied to a blockchain system including a plurality of nodes, wherein at least one of the plurality of nodes includes a neighbor node; the neighbor The node is a node that directly communicates with the node; the method includes: for at least one neighbor node, the node determines the network connection status value between the node and the neighbor node through a connection message; if the determined If the network connection state value exceeds the first threshold, stop data transmission with the neighbor node. In the embodiment of the present application, by suppressing neighbor nodes with poor network status, the network resources occupied by the transmission of invalid data are effectively removed, thereby ensuring that transaction data is not lost, avoiding repeated transmission of transaction data, and improving The efficiency of network processing transaction data improves the utilization rate of network resources.

Based on the same technical idea, an embodiment of the present application further provides a computing device, and the computing device may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), and the like. A schematic structural diagram of a computing device provided in an embodiment of the present application, the computing device may include a central processing unit (Center Processing Unit, CPU), a memory, an input device, an output device, etc., the input device may include a keyboard, a mouse, a touch screen, etc., and the output The device may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), a cathode ray tube (Cathode Ray Tube, CRT), and the like.

The memory may include read only memory (ROM) and random access memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiment of the present application, the memory can be used to store the program of the block chain generation method provided in the embodiment of the present application, and the processor executes any of the above-mentioned steps according to the obtained program instructions by calling the program instructions stored in the memory. Blockchain generation method.

Based on the same technical concept, the embodiment of the present application also provides a computer-readable storage medium for storing computer program instructions used by the above-mentioned computing device, which includes a block chain generation method for executing any of the above-mentioned program of.

The computer storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD)) and the like.

Based on the same technical idea, an embodiment of the present application further provides a computing device, and the computing device may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), and the like. A schematic structural diagram of a computing device provided in an embodiment of the present application, the computing device may include a central processing unit (Center Processing Unit, CPU), a memory, an input device, an output device, etc., the input device may include a keyboard, a mouse, a touch screen, etc., and the output The device may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), a cathode ray tube (Cathode Ray Tube, CRT), and the like.

The memory may include read only memory (ROM) and random access memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiment of the present application, the memory can be used to store the program of the data verification method provided in the embodiment of the present application, and the processor executes the data verification described in any of the above by calling the program instructions stored in the memory according to the obtained program instructions method.

Based on the same technical concept, an embodiment of the present application also provides a computer-readable storage medium for storing computer program instructions used by the above-mentioned computing device, which includes a program for executing the data verification method described in any one of the above-mentioned .

The computer storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD)) and the like.

While preferred embodiments of the present application have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the application.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (10)

1. A communication method, applied to a block chain system comprising a plurality of nodes, wherein at least one node in the plurality of nodes comprises a neighbor node; the neighbor node is a node directly communicating with the node ; the method comprises: For at least one neighbor node, the node determines the network connection state value between the node and the neighbor node through a connection message; if it is determined that the network connection state value exceeds the first threshold, then stop passing the connectionless message The text performs data transmission with the neighbor node. 2. The method according to claim 1, wherein the node determines the network connection state value between the node and the neighbor node through a connection message, comprising: If it is determined that the network connection state with the neighbor node is a normal state, then determine that the network connection state value remains unchanged; If it is determined that the network connection status with the neighbor node is abnormal, then increase the network connection status value. 3. The method according to claim 1 or 2, wherein after the stop of data transmission with the neighbor node, further comprising: If it is determined that the network connection state with the neighbor node returns to normal, the network connection state value is decayed with time according to a preset rule. 4. The method of claim 3, further comprising: If it is determined that the network connection status value is less than or equal to the second threshold, data transmission is performed again between the neighbor node and the node by using a connectionless message. 5. The method according to any one of claims 1-4, wherein the node determines the network connection status value between the node and the neighbor node through a connected message, including: The node sends a heartbeat packet to the neighbor node; The node determines whether the network connection status with the neighbor node is normal according to whether it receives the heartbeat response returned by the neighbor node at a predetermined time. 6. A communication device applied to a block chain system comprising a plurality of nodes, wherein at least one node in the plurality of nodes comprises a neighbor node; the neighbor node is a node directly communicating with the node ; the device comprises: An acquisition unit, configured to determine a network connection status value between the node and the neighbor node through a connected message for at least one neighbor node; A processing unit, configured to stop data transmission with the neighbor node through a connectionless message if it is determined that the network connection state value exceeds a first threshold. 7. The device according to claim 6, wherein the acquiring device is specifically configured to: if it is determined that the network connection status with the neighbor node is a normal status, then determine that the network connection status value remains unchanged; if If it is determined that the network connection status with the neighbor node is abnormal, then increase the network connection status value. 8. The device according to claim 6 or 7, wherein the processing unit is further configured to: If it is determined that the network connection state with the neighbor node returns to normal, the network connection state value is decayed with time according to a preset rule. 9. The device according to claim 8, wherein the processing unit is further configured to: If it is determined that the network connection status value is less than or equal to the second threshold, data transmission is performed again between the neighbor node and the node by using a connectionless message. 10. The device according to any one of claims 1-4, wherein the acquiring unit is further configured to: the node sends a heartbeat packet to the neighbor node; The heartbeat response returned by the neighbor node determines whether the network connection status with the neighbor node is normal.