CN111130801A - Data processing method and device, node equipment and computer storage medium - Google Patents
Data processing method and device, node equipment and computer storage medium Download PDFInfo
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Abstract
The embodiment of the invention provides a data processing method, a data processing device, node equipment and a computer storage medium, wherein the method comprises the following steps: the method comprises the steps that a first node obtains a transaction hash list in a transaction pool, writes the transaction hash list into a block body of an alternative block, broadcasts the alternative block in a block chain network, so that a second node of the block chain network verifies transaction hashes included in the transaction hash list by using transaction data cached locally, and obtains a verification result, the first node receives a target transaction hash sent by the second node according to the verification result, the target transaction hash is the transaction hash corresponding to the transaction data not cached locally at a consensus node in the transaction hashes included in the transaction hash list, and the first node can send the target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data, the network resource consumption can be reduced, and the consensus efficiency and the service throughput can be improved.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a data processing method and apparatus, a node device, and a computer storage medium.
Background
At present, a block chain network packs transaction data into a block body of a block at a common identification block stage of each round, and the data volume of the transaction data is possibly large and numerous, and the size of each block is limited, so that the number of packed transactions is obviously limited, the throughput of the transactions is reduced, and meanwhile, the transaction pool and the common identification verification are asynchronously executed, so that network resources are wasted. Therefore, how to reduce network resource consumption and improve consensus efficiency and service throughput during block generation and consensus verification becomes an urgent problem to be solved.
Disclosure of Invention
Embodiments of the present invention provide a data processing method, an apparatus, a node device, and a computer storage medium, which can reduce network resource consumption and improve consensus efficiency and service throughput.
In a first aspect, an embodiment of the present invention provides a data processing method, which is applied to a blockchain network, where the blockchain network includes a plurality of nodes, and the method includes:
a first node acquires a transaction hash list in a transaction pool and writes the transaction hash list into a block body of an alternative block, wherein the first node is a block outlet node in the plurality of nodes;
the first node broadcasts the alternative block in the block chain network, so that a second node verifies the transaction hash included in the transaction hash list by using transaction data cached locally and obtains a verification result, wherein the second node is any one of the plurality of nodes except the first node;
the first node receives a target transaction hash sent by the second node according to the verification result, wherein the target transaction hash is a transaction hash corresponding to transaction data which is not cached locally by the second node in the transaction hashes included in the transaction hash list;
and the first node sends target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data.
In a second aspect, an embodiment of the present invention provides a data processing method, which is applied to a blockchain network, where the blockchain network includes a plurality of nodes, and the method includes:
a second node receives an alternative block broadcasted by a first node in the blockchain network, wherein a block body of the alternative block comprises a transaction hash list, the first node is a block outlet node in the plurality of nodes, and the second node is any one of the plurality of nodes except the first node;
the second node verifies the transaction hash included in the transaction hash list by using the transaction data cached locally, and obtains a verification result;
the second node sends a target transaction hash corresponding to the local uncached transaction data to the first node according to the verification result;
and the second node receives target transaction data corresponding to the target transaction hash sent by the first node, and verifies the target transaction hash by using the target transaction data.
In a third aspect, an embodiment of the present invention provides a data processing apparatus, which is applied to a blockchain network, where the blockchain network includes a plurality of nodes, and the apparatus includes:
the acquisition module is used for acquiring a transaction hash list in a transaction pool and writing the transaction hash list into a block body of the candidate block, wherein a first node is a block outlet node in the plurality of nodes;
a sending module, configured to broadcast the candidate block in the blockchain network, so that a second node verifies the transaction hash included in the transaction hash list by using locally cached transaction data, and obtains a verification result, where the second node is any one of the plurality of nodes except the first node;
a receiving module, configured to receive a target transaction hash sent by the second node according to the check result, where the target transaction hash is a transaction hash corresponding to transaction data that is not locally cached by the second node in the transaction hashes included in the transaction hash list;
the sending module is further configured to send target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data.
In a fourth aspect, an embodiment of the present invention provides a data processing apparatus, which is applied to a blockchain network, where the blockchain network includes a plurality of nodes, and the apparatus includes:
a receiving module, configured to receive an alternative chunk broadcasted by a first node in the blockchain network, where a chunk of the alternative chunk includes a transaction hash list, the first node is a chunk exit node in the multiple nodes, and a second node is any one of the multiple nodes except the first node;
the verification module is used for verifying the transaction hash included in the transaction hash list by using the transaction data cached locally and obtaining a verification result;
the sending module is used for sending a target transaction hash corresponding to the local uncached transaction data to the first node according to the check result;
the receiving module is further configured to receive target transaction data corresponding to the target transaction hash sent by the first node;
the verification module is further configured to verify the target transaction hash using the target transaction data.
In a fifth aspect, an embodiment of the present invention provides a node device applied to a blockchain network, where the node device includes a processor, a network interface, and a storage device, where the processor, the network interface, and the storage device are connected to each other, where the network interface is controlled by the processor to send and receive data, and the storage device is used to store a computer program, where the computer program includes program instructions, and the processor is configured to call the program instructions to execute the data processing method according to the first aspect.
In a sixth aspect, an embodiment of the present invention provides a node device applied to a blockchain network, where the node device includes a processor, a network interface, and a storage device, where the processor, the network interface, and the storage device are connected to each other, where the network interface is controlled by the processor to send and receive data, and the storage device is used to store a computer program, where the computer program includes program instructions, and the processor is configured to call the program instructions to execute the data processing method according to the second aspect.
In a seventh aspect, an embodiment of the present invention provides a computer storage medium, where program instructions are stored in the computer storage medium, and when the program instructions are executed, the computer storage medium is used to implement the data processing method according to the first aspect or the second aspect.
In the embodiment of the invention, a first node acquires a transaction hash list in a transaction pool, writes the transaction hash list into a block body of an alternative block, and broadcasts the alternative block in a blockchain network, so that a second node of the blockchain network verifies transaction hashes included in the transaction hash list by using transaction data cached locally and obtains a verification result, the first node receives a target transaction hash sent by the second node according to the verification result, the target transaction hash is a transaction hash corresponding to transaction data not cached locally by a consensus node in the transaction hashes included in the transaction hash list, the first node can send target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data, and construction of the alternative block and verification of the alternative block in a consensus verification stage are completed, it can be seen that, when a block is constructed, only the transaction hash is packed to the block instead of complete transaction data, so that the alternative block is compressed, and in the consensus verification stage, the consensus node synchronously acquires the lacking transaction data from the block-out node based on the need, so that the network resource consumption can be reduced, and the consensus efficiency and the service throughput can be improved.
Drawings
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1a is a block diagram of a data processing system according to an embodiment of the present invention;
fig. 1b is a schematic structural diagram of a block chain according to an embodiment of the present invention;
FIG. 2 is a flow chart of a data processing method according to an embodiment of the present invention;
FIG. 3 is a flow chart of another data processing method provided by the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention;
FIG. 5 is a block diagram of another data processing apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a node device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another node device according to an embodiment of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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. 1a, it is a schematic diagram of an architecture of a data processing system provided in an embodiment of the present invention, where the data processing system includes a blockchain network 10 and a terminal device 20, where:
the blockchain network 10 refers to a network for performing data sharing between nodes, and a plurality of nodes 101 may be included in the blockchain network. Each node 101 may receive input information and maintain shared data (i.e., blockchains) within the blockchain network based on the received input information while operating normally. In order To ensure information intercommunication in the blockchain network, each node may have information connection, and any two nodes may implement Peer-To-Peer (P2P) communication, and specifically may perform P2P communication through a wired communication link or a wireless communication link. For example, when any node in the blockchain network receives input information, other nodes acquire the input information according to a consensus algorithm, and store the input information as data in shared data, so that the data stored on all nodes in the blockchain network are consistent.
It should be noted that the number of nodes shown in fig. 1a is only illustrative, and any number of nodes may be deployed according to actual needs.
Each node in the blockchain network has a corresponding node identifier, and each node in the blockchain network can store node identifiers of other nodes in the blockchain network, so that the generated block can be broadcast to other nodes in the blockchain network according to the node identifiers of other nodes. Each node may maintain a node identifier list as shown in the following table, and store the node name and the node identifier in the node identifier list correspondingly. The node identifier may be an Internet Protocol (IP) address or any other information that can be used to identify the node, and the table is described by taking the IP address as an example.
| Node name | Node identification |
| Node 1 | 117.114.151.174 |
| Node 2 | 117.116.189.145 |
| … | … |
| Node N | 119.123.789.258 |
Each node in the blockchain network stores one identical blockchain. The block chain is composed of a plurality of blocks, referring to fig. 1b, the block chain is composed of a plurality of blocks, the starting block comprises a block head and a block body, the block head stores an input information characteristic value, a version number, a timestamp and a difficulty value, and the block body stores input information; the next block of the starting block takes the starting block as a parent block, the next block also comprises a block head and a block main body, the block head stores the input information characteristic value of the current block, the block head characteristic value of the parent block, the version number, the timestamp and the difficulty value, and the like, so that the block data stored in each block in the block chain is associated with the block data stored in the parent block, and the safety of the input information in the block is ensured.
The intelligent contract can be operated on the nodes of the block chain network, the intelligent contract is realized by codes executed when a certain condition is met, developers can define contract logic through a programming language, issue the contract logic to the block chain (intelligent contract registration), and call keys or other events to trigger execution according to the logic of contract terms to complete the contract logic and simultaneously provide the functions of upgrading and cancelling the intelligent contract.
In some possible embodiments, a certain node 101 of the blockchain network may obtain a transaction hash list in the transaction pool, and write the transaction hash list into a block of the candidate block, where the node serves as an out-of-block node among a plurality of nodes included in the blockchain network, and broadcast the candidate block in the blockchain network, so that after receiving the candidate block, another node 101 (i.e., a common node) of the blockchain network checks the transaction hash included in the transaction hash list by using locally cached transaction data, and obtains a check result, the certain node 101 receives a target transaction hash sent by the other node 101 according to the check result, the target transaction hash is a transaction hash corresponding to transaction data that is not locally cached by the other node 101 in the transaction hashes included in the transaction hash list, and then the certain node 101 may send target transaction data corresponding to the target transaction hash to the other node 101, therefore, when the block is constructed, the transaction hash is only required to be packed into the block instead of complete transaction data, and in the consensus verification stage, the consensus node synchronously acquires the lacking transaction data from the block-out node based on the requirement, so that the network resource consumption can be reduced, and the consensus efficiency and the service throughput can be improved.
The implementation details of the technical scheme of the embodiment of the invention are explained in detail as follows:
referring to fig. 2, it is a schematic flow chart of a data processing method provided by the data processing system shown in fig. 1a according to an embodiment of the present invention, where the data processing method in the embodiment of the present invention is mainly described from a node side (out-of-block node), and the data processing method includes the following steps:
201. and a first node acquires a transaction hash list in the transaction pool and writes the transaction hash list into a block body of the candidate block, wherein the first node is a block outlet node in the plurality of nodes.
The first node is a block output node which is currently responsible for a block output task in a plurality of nodes included in the block chain network.
Specifically, the first node may obtain a transaction hash list from the transaction pool, where the transaction hash list includes transaction hashes (hashes) generated by the transaction pool for the to-be-processed transaction data, and the first node writes the transaction hash list into the block body of the candidate block when the candidate block is constructed.
202. The first node broadcasts the alternative block in the block chain network, so that a second node verifies the transaction hash included in the transaction hash list by using transaction data cached locally and obtains a verification result, wherein the second node is any one of the plurality of nodes except the first node.
Specifically, after the candidate block is constructed, the first node broadcasts the candidate block in the blockchain network, so that the consensus node in the blockchain network verifies the candidate block. If the second node is any one of the common nodes except the first node (out-of-block node) in the plurality of nodes included in the blockchain network, the second node may verify each transaction hash included in the transaction hash list by using the transaction data cached locally, obtain a verification result, and determine a target transaction hash corresponding to the transaction data not cached locally according to the verification result.
203. And the first node receives a target transaction hash sent by the second node according to the verification result, wherein the target transaction hash is a transaction hash corresponding to the transaction data which is not cached locally by the second node in the transaction hashes included in the transaction hash list.
204. And the first node sends target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data.
The second node can acquire the part of the transaction data which is lacked in the local cache by sending the target transaction hash to the first node.
Specifically, the first node receives the target transaction hash sent by the second node according to the verification result, acquires transaction data (marked as target transaction data) corresponding to the target transaction hash cached in the transaction pool, and sends the target transaction data to the second node, so that the second node verifies the target transaction hash which is not verified by using the target transaction data, thereby completing verification of the candidate block in the consensus verification stage.
In some possible embodiments, when receiving the transaction data, the first node locally caches the transaction data, specifically, the transaction data may be locally cached by a transaction pool of the first node, and the first node may further broadcast the transaction data in the blockchain network, so that other nodes (e.g., a second node) in the blockchain network also locally cache the transaction data.
In some possible embodiments, for the constructed candidate blocks, the data of the block may be further compressed by using a compression algorithm, for example, a transaction hash list, so as to obtain a higher transaction throughput.
In the embodiment of the invention, a block outlet node of a blockchain network can obtain a transaction hash list in a transaction pool, write the transaction hash list into a block body of an alternative block, broadcast the alternative block in the blockchain network, so that after other nodes (namely common identification nodes) of the blockchain network receive the alternative block, the transaction hashes included in the transaction hash list are verified by using transaction data cached locally, and a verification result is obtained, the block outlet node receives a target transaction hash sent by the common identification nodes according to the verification result, the target transaction hash is a transaction hash corresponding to the transaction data not cached locally by the common identification nodes in the transaction hashes included in the transaction hash list, and then the block outlet node can send target transaction data corresponding to the target transaction hash to the common identification nodes, so that the common identification nodes verify the target transaction hashes by using the target transaction data, therefore, the construction of the alternative block and the check of the alternative block in the consensus verification stage are completed, and it can be seen that when the block is constructed, only the transaction needs to be hashed and packaged to the block instead of complete transaction data, so that the compression of the alternative block is realized.
Referring to fig. 3, it is a schematic flow chart of another data processing method provided by the data processing system shown in fig. 1a according to an embodiment of the present invention, where the data processing method in the embodiment of the present invention is mainly described from a node side (consensus node), and the data processing method includes the following steps:
301. and a second node receives an alternative block broadcasted by a first node in the blockchain network, wherein a block body of the alternative block comprises a transaction hash list, the first node is a block outlet node in the plurality of nodes, and the second node is any one of the plurality of nodes except the first node.
The second node is any one of the nodes included in the blockchain network except the first node (out-of-block node).
Specifically, the second node receives the candidate blocks broadcast by the first node in the blockchain network, the block bodies of the candidate blocks include a transaction hash list, and the transaction hash list specifically includes transaction hashes of transaction data to be processed.
302. And the second node verifies the transaction hash included in the transaction hash list by using the transaction data cached locally and obtains a verification result.
Specifically, the second node may obtain the transaction data cached locally from the local transaction pool, calculate the transaction hash of each transaction data, and compare the transaction hash included in the transaction hash list with the transaction hash of the transaction data cached locally to complete verification of the transaction hash included in the transaction hash list, and obtain a verification result.
In some possible embodiments, for any transaction hash included in the transaction hash list, the second node may compare the transaction hash with the transaction hash of the transaction data, and if there is a transaction hash matching the transaction hash in the transaction hash of the transaction data, it may be determined that the transaction hash passes the check.
303. And the second node sends the target transaction hash corresponding to the local uncached transaction data to the first node according to the verification result.
Specifically, the second node may determine, according to the check result, a transaction hash corresponding to the locally uncached transaction data (or a transaction hash that is not checked), that is, a transaction hash corresponding to the locally absent part of the transaction data, from the transaction hashes included in the transaction hash list, and may use the transaction hash corresponding to the locally uncached transaction data as a target transaction hash, and send the target transaction hash to the first node, so as to obtain, from the first node, the part of the transaction data that is absent from the local cache of the second node.
304. And the second node receives target transaction data corresponding to the target transaction hash sent by the first node, and verifies the target transaction hash by using the target transaction data.
Specifically, the second node may receive target transaction data corresponding to the target transaction hash sent by the first node, and verify the target transaction hash that has not been verified by using the target transaction data.
Further, the second node may generate a voting result for the candidate block according to a check result of each transaction hash in the transaction hash list included in the block body of the candidate block, where the voting result may be that the candidate block is legal or that the candidate block is illegal. The second node may also update the local ledger according to the complete transaction data cached in the transaction pool after acquiring the missing target transaction data from the first node.
For example, assuming that the transaction hash list in the block of the candidate block includes 5 transaction hashes, which are hash 1, hash2, hash 3, hash 4, and hash 5, respectively, transaction data a corresponding to hash 1, transaction data B corresponding to hash2, transaction data C corresponding to hash 3, transaction data D corresponding to hash 4, and transaction data E corresponding to hash 5, that is, transaction data A, B, C, D, E is locally cached in the first node, and hashes of 5 transaction data, namely, transaction data A, B, C, D, E, are written into the block to construct the candidate block, when the second node receives the candidate block, due to network delay and other reasons, only 3 transaction data, namely, transaction data a, transaction data C, and transaction data D, are cached in the local transaction pool, the second node calculates the transaction hash of the transaction data a (namely, hash 1), the transaction hash (i.e. hash 3) of the transaction data C, the transaction hash (i.e. hash 4) of the transaction data D, and the second node verifying the 5 transaction hashes (i.e. hash 1, hash2, hash 3, hash 4, hash 5) included in the transaction hash list by using hash 1, hash 3, hash 4, it can be seen that, for hash2 and hash 5, the second node does not locally cache the corresponding transaction data B and transaction data E, that is, the target transaction hashes that have not been verified are hash2 and hash 5, the second node sends hash2 and hash 5 to the first node, the first node obtains the transaction data B corresponding to the locally cached hash2 and the transaction data E corresponding to hash 5, and sends the transaction data B and the transaction data E to the first node, the transaction data B and the transaction data E are the target transaction data described above, and the first node acquires the missing target transaction data from the second node, if the transaction data B and the transaction data E are not tampered when the first node sends the transaction data B and the transaction data E to the second node, the transaction hash of the transaction data B calculated by the second node is hash2, the transaction hash of the transaction data E is hash 5, and then the hash2 and the hash 5 are used for verifying the target transaction hashes (namely, hash2 and hash 5) which are not verified, so that the consensus verification of the candidate blocks is completed.
In the embodiment of the invention, a consensus node of a blockchain network receives an alternative block broadcasted by a blockchain node in the blockchain network, a block body of the alternative block comprises a transaction hash list, and the consensus node verifies the transaction hash contained in the transaction hash list by using transaction data cached locally and obtains a verification result; then, the consensus node sends the target transaction hash corresponding to the local uncached transaction data to the block-out node according to the check result, receives the target transaction data corresponding to the target transaction hash sent by the block-out node, and then checks the target transaction hash which is not checked by using the target transaction data, so that the construction of the alternative block and the check of the alternative block in the consensus verification stage are completed.
Referring to fig. 4, a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention is shown, where the data processing apparatus according to the embodiment of the present invention is applied to a blockchain network, the blockchain network includes a plurality of nodes, and the apparatus includes:
an obtaining module 401, configured to obtain a transaction hash list in a transaction pool, and write the transaction hash list into a block body of an alternative block, where a first node is a block exit node in the multiple nodes;
a sending module 402, configured to broadcast the candidate block in the blockchain network, so that a second node checks the transaction hash included in the transaction hash list by using locally cached transaction data, and obtains a check result, where the second node is any one of the plurality of nodes except the first node;
a receiving module 403, configured to receive a target transaction hash sent by the second node according to the check result, where the target transaction hash is a transaction hash corresponding to transaction data that is not cached locally by the second node in the transaction hashes included in the transaction hash list;
the sending module 402 is further configured to send target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data.
Optionally, the apparatus further comprises a storage module 404, wherein:
the storage module 404 is configured to, when transaction data is received, locally cache the transaction data;
the sending module 402 is further configured to broadcast the transaction data in the blockchain network, so that the second node locally caches the transaction data.
It should be noted that the functions of each functional module of the data processing apparatus according to the embodiment of the present invention may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the related description of the foregoing method embodiment, which is not described herein again.
Referring to fig. 5, a schematic structural diagram of another data processing apparatus according to an embodiment of the present invention is shown, where the data processing apparatus according to the embodiment of the present invention is applied to a blockchain network, where the blockchain network includes a plurality of nodes, and the apparatus includes:
a receiving module 501, configured to receive an alternative chunk broadcasted by a first node in the blockchain network, where a chunk of the alternative chunk includes a transaction hash list, the first node is an outbound chunk node in the multiple nodes, and a second node is any node in the multiple nodes except the first node;
the verification module 502 is configured to verify the transaction hash included in the transaction hash list by using the transaction data cached locally, and obtain a verification result;
a sending module 503, configured to send, to the first node, a target transaction hash corresponding to locally uncached transaction data according to the check result;
the receiving module 501 is further configured to receive target transaction data corresponding to the target transaction hash sent by the first node;
the verification module 502 is further configured to verify the target transaction hash by using the target transaction data.
Optionally, the verification module 502 is specifically configured to:
acquiring locally cached transaction data from a transaction pool;
acquiring a transaction hash of the transaction data;
and comparing the transaction hash included in the transaction hash list with the transaction hash of the transaction data so as to verify the transaction hash included in the transaction hash list and obtain a verification result.
Optionally, the verification module 502 is specifically configured to:
comparing any transaction hash included in the transaction hash list with a transaction hash of the transaction data;
and if the transaction hash matched with any transaction hash exists in the transaction hashes of the transaction data, determining that the transaction hash passes verification.
Optionally, the sending module 503 is specifically configured to:
determining the transaction hash which is not verified in the transaction hash list according to the verification result;
taking the transaction hash which is not verified as a target transaction hash corresponding to local uncached transaction data;
sending the target transaction hash to the first node.
Optionally, the apparatus further comprises:
a determining module 504, configured to determine a voting result for the candidate block according to a check result of each transaction hash included in the transaction hash list.
It should be noted that the functions of each functional module of the data processing apparatus according to the embodiment of the present invention may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the related description of the foregoing method embodiment, which is not described herein again.
Referring to fig. 6, it is a schematic structural diagram of a node device according to an embodiment of the present invention, where the node device includes a power supply module and other structures, and includes a processor 601, a storage device 602, and a network interface 603. The processor 601, the storage device 602, and the network interface 603 may exchange data therebetween.
The storage device 602 may include a volatile memory (volatile memory), such as a random-access memory (RAM); the storage device 602 may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a solid-state drive (SSD), etc.; the storage means 602 may also comprise a combination of memories of the kind described above.
The processor 601 may be a Central Processing Unit (CPU) 601. In one embodiment, the processor 601 may also be a Graphics Processing Unit (GPU) 601. The processor 601 may also be a combination of a CPU and a GPU. In one embodiment, the storage device 602 is used to store program instructions. The processor 601 may call the program instructions to perform the following operations:
acquiring a transaction hash list in a transaction pool, and writing the transaction hash list into a block body of an alternative block, wherein a first node is a block outlet node in the plurality of nodes;
broadcasting the alternative block in the block chain network so that a second node checks transaction hashes included in the transaction hash list by using transaction data cached locally and obtains a check result, wherein the second node is any one of the plurality of nodes except the first node;
receiving a target transaction hash sent by the second node according to the verification result, wherein the target transaction hash is a transaction hash corresponding to transaction data which is not cached locally by the second node in the transaction hashes included in the transaction hash list;
and sending target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data.
Optionally, the processor 601 is further configured to:
when transaction data are received, performing local caching on the transaction data;
broadcasting the transaction data in the blockchain network such that the second node locally caches the transaction data.
In a specific implementation, the processor 601, the storage device 602, and the network interface 603 described in this embodiment of the present invention may perform the implementation described in the related embodiment of the data processing method provided in fig. 2 in this embodiment of the present invention, and may also perform the implementation described in the related embodiment of the data processing device provided in fig. 4 in this embodiment of the present invention, which is not described herein again.
Fig. 7 is a schematic structural diagram of a node device according to an embodiment of the present invention, where the node device includes a power supply module and other structures, and includes a processor 701, a storage 702, and a network interface 703. The processor 701, the storage 702, and the network interface 703 may exchange data with each other.
The storage 702 may include a volatile memory (volatile memory), such as a random-access memory (RAM); the storage device 702 may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a solid-state drive (SSD), or the like; the storage means 702 may also comprise a combination of memories of the kind described above.
The processor 701 may be a Central Processing Unit (CPU) 701. In one embodiment, the processor 701 may also be a Graphics Processing Unit (GPU) 701. The processor 701 may also be a combination of a CPU and a GPU. In one embodiment, the storage 702 is used to store program instructions. The processor 701 may call the program instructions to perform the following operations:
receiving an alternative block broadcasted by a first node in the blockchain network, wherein a block body of the alternative block comprises a transaction hash list, the first node is a block outlet node in the plurality of nodes, and a second node is any one of the plurality of nodes except the first node;
verifying the transaction hash included in the transaction hash list by using the transaction data cached locally, and obtaining a verification result;
sending a target transaction hash corresponding to local uncached transaction data to the first node according to the verification result;
receiving target transaction data corresponding to the target transaction hash sent by the first node;
and verifying the target transaction hash by using the target transaction data.
Optionally, the processor 701 is specifically configured to:
acquiring locally cached transaction data from a transaction pool;
acquiring a transaction hash of the transaction data;
and comparing the transaction hash included in the transaction hash list with the transaction hash of the transaction data so as to verify the transaction hash included in the transaction hash list and obtain a verification result.
Optionally, the processor 701 is specifically configured to:
comparing any transaction hash included in the transaction hash list with a transaction hash of the transaction data;
and if the transaction hash matched with any transaction hash exists in the transaction hashes of the transaction data, determining that the transaction hash passes verification.
Optionally, the processor 701 is specifically configured to:
determining the transaction hash which is not verified in the transaction hash list according to the verification result;
taking the transaction hash which is not verified as a target transaction hash corresponding to local uncached transaction data;
sending the target transaction hash to the first node.
Optionally, the processor 701 is further configured to determine a voting result for the candidate block according to a check result of each transaction hash included in the transaction hash list.
In a specific implementation, the processor 701, the storage device 702, and the network interface 703 described in this embodiment of the present invention may execute the implementation described in the related embodiment of the data processing method provided in fig. 3 in this embodiment of the present invention, and may also execute the implementation described in the related embodiment of the data processing device provided in fig. 5 in this embodiment of the present invention, which is not described herein again.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like, and may specifically be a processor in the computer device) to execute all or part of the steps of the above-described method according to the embodiments of the present invention. The storage medium may include: a U-disk, a removable hard disk, a magnetic disk, an optical disk, a Read-Only Memory (ROM) or a Random Access Memory (RAM), and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A data processing method applied to a blockchain network, the blockchain network comprising a plurality of nodes, the method comprising:
a first node acquires a transaction hash list in a transaction pool and writes the transaction hash list into a block body of an alternative block, wherein the first node is a block outlet node in the plurality of nodes;
the first node broadcasts the alternative block in the block chain network, so that a second node verifies the transaction hash included in the transaction hash list by using transaction data cached locally and obtains a verification result, wherein the second node is any one of the plurality of nodes except the first node;
the first node receives a target transaction hash sent by the second node according to the verification result, wherein the target transaction hash is a transaction hash corresponding to transaction data which is not cached locally by the second node in the transaction hashes included in the transaction hash list;
and the first node sends target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data.
2. The method of claim 1, wherein before the first node obtains the transaction hash list in the transaction pool, the method further comprises:
when the first node receives transaction data, the transaction data is locally cached;
the first node broadcasts the transaction data in the blockchain network so that the second node caches the transaction data locally.
3. A data processing method applied to a blockchain network, the blockchain network comprising a plurality of nodes, the method comprising:
a second node receives an alternative block broadcasted by a first node in the blockchain network, wherein a block body of the alternative block comprises a transaction hash list, the first node is a block outlet node in the plurality of nodes, and the second node is any one of the plurality of nodes except the first node;
the second node verifies the transaction hash included in the transaction hash list by using the transaction data cached locally, and obtains a verification result;
the second node sends a target transaction hash corresponding to the local uncached transaction data to the first node according to the verification result;
and the second node receives target transaction data corresponding to the target transaction hash sent by the first node, and verifies the target transaction hash by using the target transaction data.
4. The method of claim 3, wherein the second node verifies the transaction hash included in the transaction hash list with the locally cached transaction data and obtains a verification result, comprising:
the second node acquires the transaction data of the local cache from the transaction pool;
the second node acquires transaction hash of the transaction data;
and the second node compares the transaction hash included in the transaction hash list with the transaction hash of the transaction data so as to verify the transaction hash included in the transaction hash list and obtain a verification result.
5. The method according to claim 4, wherein the second node compares the transaction hash included in the transaction hash list with the transaction hash of the transaction data to verify the transaction hash included in the transaction hash list and obtain a verification result, and comprises:
for any transaction hash included in the transaction hash list, the second node compares the transaction hash with a transaction hash of the transaction data;
and if the transaction hash matched with any transaction hash exists in the transaction hashes of the transaction data, the second node determines that any transaction hash passes the verification.
6. The method of claim 5, wherein the second node sending the target transaction hash corresponding to the locally uncached transaction data to the first node according to the verification result comprises:
the second node determines the transaction hash which is not verified in the transaction hash list according to the verification result;
the second node takes the transaction hash which is not verified as a target transaction hash corresponding to the local uncached transaction data;
the second node sends the target transaction hash to the first node.
7. The method of claim 6, wherein after the second node receives the target transaction data corresponding to the target transaction hash sent by the first node and verifies the target transaction hash using the target transaction data, the method further comprises:
and the second node determines the voting result of the alternative block according to the verification result of each transaction hash included in the transaction hash list.
8. A data processing apparatus for use in a blockchain network comprising a plurality of nodes, the apparatus comprising:
the acquisition module is used for acquiring a transaction hash list in a transaction pool and writing the transaction hash list into a block body of the candidate block, wherein a first node is a block outlet node in the plurality of nodes;
a sending module, configured to broadcast the candidate block in the blockchain network, so that a second node verifies the transaction hash included in the transaction hash list by using locally cached transaction data, and obtains a verification result, where the second node is any one of the plurality of nodes except the first node;
a receiving module, configured to receive a target transaction hash sent by the second node according to the check result, where the target transaction hash is a transaction hash corresponding to transaction data that is not locally cached by the second node in the transaction hashes included in the transaction hash list;
the sending module is further configured to send target transaction data corresponding to the target transaction hash to the second node, so that the second node verifies the target transaction hash by using the target transaction data.
9. A data processing apparatus for use in a blockchain network comprising a plurality of nodes, the apparatus comprising:
a receiving module, configured to receive an alternative chunk broadcasted by a first node in the blockchain network, where a chunk of the alternative chunk includes a transaction hash list, the first node is a chunk exit node in the multiple nodes, and a second node is any one of the multiple nodes except the first node;
the verification module is used for verifying the transaction hash included in the transaction hash list by using the transaction data cached locally and obtaining a verification result;
the sending module is used for sending a target transaction hash corresponding to the local uncached transaction data to the first node according to the check result;
the receiving module is further configured to receive target transaction data corresponding to the target transaction hash sent by the first node;
the verification module is further configured to verify the target transaction hash using the target transaction data.
10. A computer storage medium having stored thereon program instructions for implementing a data processing method according to any one of claims 1 to 7 when executed.
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