CN114416765A - Stepless prediction execution method and system for block chain transaction - Google Patents
Stepless prediction execution method and system for block chain transaction Download PDFInfo
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Abstract
The invention discloses a block chain transaction stepless prediction execution method and a system, wherein the method comprises the following steps: the height proposal node of the first block acquires a batch of transactions from the transaction pool and executes the transactions in advance, and packages the transactions to form a first candidate block; the consensus node performs consensus on the first candidate block; the height proposal node of the second block receives the event confirmation information of the first block after packaging, acquires a batch of transactions from the transaction pool and pre-executes the transactions, and packages the transactions to form a second candidate block; after the first candidate block is identified in a consensus mode, the consensus node receives event confirmation information of the first block after the first candidate block is identified in the consensus mode, and performs consensus on a second candidate block; and repeatedly executing all the steps, and respectively carrying out transaction packaging and consensus on the subsequent blocks until all the blocks finish transaction packaging and consensus. The redundant computing power can be fully utilized, the transaction execution and the block packaging can be executed earlier, the block processing parallelism is improved, and the transaction processing efficiency is improved.
Description
Technical Field
The present invention relates to the field of blockchain technologies, and in particular, to a method and a system for performing stepless prediction of blockchain transactions.
Background
Blockchains are a term of art in information technology. In essence, the system is a shared database, and the data or information stored in the shared database has the characteristics of 'unforgeability', 'whole-course trace', 'traceability', 'public transparency', 'collective maintenance', and the like. Based on the characteristics, the block chain technology lays a solid 'trust' foundation, creates a reliable 'cooperation' mechanism and has wide application prospect. The block chain is a distributed shared account book and a database, and has the characteristics of decentralization, no tampering, trace retaining in the whole process, traceability, collective maintenance, openness and transparency and the like. The characteristics ensure the honesty and the transparency of the block chain and lay a foundation for creating trust for the block chain. And the rich application scenes of the block chains basically solve the problem of information asymmetry based on the block chains, and realize the cooperative trust and consistent action among a plurality of main bodies.
CN202010059234.9 discloses a block prepackaging method: first, when a tile prepackaging instruction is detected, transactions in the transaction pool are prioritized based on transaction weight. And then, selecting a preset number of transactions from the ordered transactions for transaction verification, obtaining the pre-packaged transactions, executing the pre-packaged transactions, obtaining transaction results, and performing relevance grouping on the transactions in the pre-packaged transactions based on the transaction results. And finally, packaging the grouped prepackaged transactions into a prepackaged block and carrying out transaction verification on the transactions in the new block based on a transaction grouping matching method in a transaction verification flow. The pre-packaging mode is adopted, the pre-packaging is limited by a consensus processing flow and computing resources, parallel packaging processing on transactions cannot be realized, the transaction processing performance has a bottleneck, and the redundant computing power of nodes cannot be fully utilized.
CN202011368260.6 discloses a block chain based transaction packaging method: carrying out duplicate removal processing on a plurality of transaction records in the transaction set list; packaging the rest transaction records in the transaction set list to generate a plurality of candidate blocks; placing a plurality of candidate blocks into a candidate block queue; at the beginning of the consensus process, a given candidate block is pulled from the candidate block queue to initiate consensus. Therefore, in the packaging stage of the consensus process, the specified candidate block is directly pulled from the candidate block queue to send the consensus, and the transaction record does not need to be pulled from the transaction pool to be packaged. The scheme discloses that a plurality of candidate blocks are generated by packaging after transaction deduplication processing in a transaction set list and are placed in a candidate block queue. Therefore, the scheme needs to start packing the next candidate block after the consensus of each candidate block is completed, is still a pre-packing scheme, is limited by the consensus processing flow, cannot realize parallel packing processing of transactions, and has a bottleneck in the transaction processing performance. The scheme adopts a single proposal node or a single proposal node with rotation to package the candidate block transaction, which can not fully utilize redundant computing resources of the mechanism and has low block processing rate.
Therefore, how to provide a method and a system for performing stepless prediction of blockchain transactions on the basis of the existing execution of blockchain transactions makes full use of redundant computing resources of mechanisms to perform stepless prediction of transactions and perform parallel packaging processing on transactions, so as to improve transaction processing efficiency, and thus, a problem that needs to be solved by those skilled in the art is urgently needed.
Disclosure of Invention
In view of the above problems, the present invention provides a method and a system for performing stepless prediction of block chain transaction, which can fully utilize redundant computing power to perform stepless prediction of transaction, improve block processing parallelism and improve transaction processing efficiency in a scenario with few transaction conflicts.
The embodiment of the invention provides a block chain transaction stepless prediction execution method, which comprises the following steps:
the height proposal node of the first block acquires a batch of transactions from the transaction pool and executes the transactions in advance, and packages the transactions to form a first candidate block; consensus node consensus the first candidate block;
the height proposal node of the second block acquires a batch of transactions from the transaction pool and executes the transactions in advance by receiving the event confirmation information of the first block after packaging, and packages the transactions to form a second candidate block;
after the first candidate block is identified in a consensus manner, the consensus node receives event confirmation information of the first block after the first candidate block is identified in a consensus manner, and performs consensus on the second candidate block;
and repeatedly executing all the steps, and respectively carrying out transaction packaging and consensus on the subsequent blocks until all the blocks finish transaction packaging and consensus.
Further, before performing consensus on any candidate block, the method includes:
and verifying whether the current candidate block transaction conflicts with the transaction read-write set, and if no conflict exists, identifying the current candidate block.
Further, before performing consensus on any candidate block, the method further includes:
if there is a conflict, all blocks that have been packed are discarded, and packing of all transactions is resumed.
Further, the event confirmation information is constructed based on a block confirmation event processing mechanism.
Further, the first block packed completed event confirmation information is constructed based on a transaction packed completed event confirmation mechanism.
Further, the event confirmation information of the first block consensus completion is constructed based on a block consensus completion event confirmation mechanism.
The embodiment of the invention provides a stepless prediction execution system for block chain transaction, which is suitable for the stepless prediction execution method for block chain transaction, and comprises the following steps:
the packaging module is used for acquiring a batch of transactions from the transaction pool by the height proposal node of the first block, pre-executing the transactions, and packaging the transactions to form a first candidate block; means for consensus node consensus on the first candidate block;
the height proposal node for the second block receives the event confirmation information of the first block after packaging, acquires a batch of transactions from the transaction pool and pre-executes the transactions, and packages the transactions to form a second candidate block;
a consensus module, configured to perform consensus on the second candidate block by the consensus node after the first candidate block completes consensus by receiving event confirmation information that the first block completes consensus;
and respectively carrying out transaction packaging and consensus on the subsequent blocks according to the packaging module and the consensus module until all the blocks finish transaction packaging and consensus.
Further, before performing consensus on any candidate block, the method further includes:
the verification module is used for verifying whether the current candidate block transaction conflicts with the transaction read-write set, if so, discarding all packed blocks and restarting the packing of all transactions; and if no conflict exists, the current candidate block is identified in common.
Further, the packing module includes: and the transaction packaging event pushing submodule is used for generating the event confirmation information of the first block after packaging is finished.
Further, the packing module includes: and the block consensus event pushing submodule is used for generating event confirmation information of the first block consensus completion.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a block chain transaction stepless prediction execution method, which comprises the following steps: the height proposal node of the first block acquires a batch of transactions from the transaction pool and executes the transactions in advance, and packages the transactions to form a first candidate block; the consensus node performs consensus on the first candidate block; the height proposal node of the second block receives the event confirmation information of the first block after packaging, acquires a batch of transactions from the transaction pool and pre-executes the transactions, and packages the transactions to form a second candidate block; after the first candidate block is identified in a consensus mode, the consensus node receives event confirmation information of the first block after the first candidate block is identified in the consensus mode, and performs consensus on a second candidate block; and repeatedly executing all the steps, and respectively carrying out transaction packaging and consensus on the subsequent blocks until all the blocks finish transaction packaging and consensus. The method can fully utilize redundant computing power, realize the stepless prediction execution of the transaction, and execute the transaction execution and block packaging earlier, and can improve the block processing parallelism and the transaction processing efficiency under the scene of less transaction conflicts.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of stepless prediction execution of blockchain transactions according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a transaction pre-packaging scheme provided by an embodiment of the invention;
fig. 3 is a schematic diagram of a block chain computation separation architecture according to an embodiment of the present invention;
fig. 4 is a diagram of a transaction stepless packaging module according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides a block chain transaction stepless prediction execution method, which comprises the following steps as shown in figure 1:
the height proposal node of the first block acquires a batch of transactions from the transaction pool and executes the transactions in advance, and packages the transactions to form a first candidate block; the consensus node performs consensus on the first candidate block;
the height proposal node of the second block receives the event confirmation information of the first block after packaging, acquires a batch of transactions from the transaction pool and pre-executes the transactions, and packages the transactions to form a second candidate block;
after the first candidate block is identified in a consensus mode, the consensus node receives event confirmation information of the first block after the first candidate block is identified in the consensus mode, and performs consensus on a second candidate block;
and repeatedly executing all the steps, and respectively carrying out transaction packaging and consensus on the subsequent blocks until all the blocks finish transaction packaging and consensus.
The method for performing stepless prediction of block chain transaction provided in this embodiment is based on a block chain access separation architecture, and utilizes redundant computing resources to perform stepless prediction of block chain transaction, and perform stepless packing (packing in advance), so that transaction execution and block packing can be performed earlier, and under a scenario with less transaction conflicts, parallelism of block processing can be improved, and transaction processing efficiency can be improved. By means of mechanism redundancy computing resources, based on a previous block confirmation event processing mechanism, after the previous block is confirmed to be packed, packing of a next block is started (namely, after the previous block is packed, packing of the next block is started immediately), and therefore early conflict detection of the transaction can be achieved; if the transaction between the packed blocks is conflict-free, the stepless packed blocks are directly subjected to subsequent consensus, and the transaction execution and the block packing can be executed earlier, so that the parallelism of block processing is improved.
The practical application scenario of the blockchain transaction processing in this embodiment may be a trade record in an Taobao transaction, a financial cross-bank cross-border transaction, or a bank internal transaction system. The transaction in this embodiment refers to transaction, i.e., a contract call of the blockchain, which is generated by the client of the blockchain.
The related concepts are explained:
trading: one call to the blockchain intelligent contract contains all the information of calling the intelligent contract: intelligent contract names, calling function names, parameters, etc.
A transaction pool: and the node self-maintains a memory area for temporarily storing the received transaction.
And (3) packaging the transaction: and taking batch transactions from the transaction pool, and assembling information such as legal transactions, block heights, block time stamps and transaction execution results into candidate blocks.
Pre-packaging: and transaction pre-packaging, namely forming a candidate block after the packaging of the previous block is finished, and after all nodes finish consensus on the candidate block and before the candidate block is landed and written into data storage, starting to pack the next block by the proposed node of the next block height in advance. The specific process and steps of transaction pre-packaging can be shown in fig. 2, and include:
1) the proposal node of the block height acquires a batch of transactions from the transaction pool and pre-executes the transactions, then packs the transactions to form candidate blocks and broadcasts the candidate blocks to carry out consensus on the candidate blocks;
2) all the nodes finish the consensus of the candidate blocks, and before the candidate blocks are landed and written into data storage, the next block height proposal node starts to pack the next block;
3) repeating the steps 1) and 2) to obtain the transaction prepackaging scheme.
The block chain computation separation architecture, as shown in fig. 3, includes: the system comprises a task management scheduling unit, a computing resource, a storage resource management scheduling unit and a storage resource.
The task management scheduling unit receives a task management scheduling request and distributes the task management scheduling request to computing resources; after receiving the task management scheduling request, the computing resource reads data of the storage resource module in parallel through the storage resource management scheduling unit; and after the data reading is finished, the computing resources execute the computing task and store the execution result in the storage resources in a fragmentation mode through the storage resource management scheduling unit. The block chain storage and calculation separation architecture completely decouples the account book storage resources and the calculation resources of each node in the block chain network, can achieve storage and calculation separation, and completely decouples the account book storage resources and the calculation resources of each node in the block chain network. The storage resources store data in a fragmentation storage mode; the computing resources provide computing services in a stateless manner, the storage resources and the computing resources jointly form a distributed storage and computing separation architecture, and the storage resources and the computing resources can be independently expanded.
The following describes a detailed scheme of the method for performing stepless prediction of blockchain transaction provided by this embodiment:
based on a redundant scheduling calculation architecture (namely a block chain storage and calculation separation architecture), the scheme fully utilizes redundant scheduling calculation resources to realize the stepless prediction execution of the block chain transaction, namely based on a block confirmation event processing mechanism, a next block height proposal node completes an event confirmation message based on the packaging of the last block, then the packaging of the next block is started (namely immediately starting the packaging of the next block after the packaging of the last block is finished), and after all nodes finish the consensus on the last block, the block with the height of the next block packaged in advance starts the consensus process. In the above process, if the transaction between the blocks has no conflict, the blocks packed in a stepless manner directly enter the subsequent consensus process; if the block transaction conflicts (the transaction of the stepless packed block and the transaction of the block packed in advance, namely the transaction read-write set conflicts), discarding the block packed in advance in a stepless way, and packing all the transactions packed in advance again.
Referring to fig. 1, the specific execution flow is as follows:
1) the current block height (i.e., the first block height) proposal node takes a batch of transactions from the transaction pool and pre-executes them, and then packs the transactions to form a candidate block (the first candidate block). After the current block height proposal node finishes obtaining a batch of transactions, the next block height (which can be understood as a second block height) proposal node also obtains a batch of transactions from the transaction pool and pre-executes the transactions, and then packs the transactions to form a candidate block (a second candidate block) with the block height. Wherein, the way for the next block height proposal node to confirm that the last block height proposal node has completed a batch of transaction acquisition is as follows: the acquisition completion event confirmation module based on the previous block transaction, namely the next block height proposal node receives an event confirmation message that the previous block transaction completes acquisition of a batch of transactions (packaging is completed), and then starts acquisition of the next block transaction.
2) When each consensus node completes consensus on the current candidate block (i.e., the first candidate block), the consensus process for the second candidate block is started: and identifying the second candidate block. Wherein, the method for the next block height proposal node to confirm that the last height block has completed consensus comprises the following steps: the event confirmation mechanism is completed based on the block consensus, i.e. the next block height proposal node immediately starts the next block consensus process by receiving the event confirmation message that the last block has completed the consensus. In this manner, the third, fourth, etc. subsequent blocks may be sequentially packed (i.e., packed steplessly) and identified in advance. If the transaction (transaction read-write set) between the previous block and the next block conflicts, discarding all blocks packed in advance and restarting the packing of all transactions; if the transaction (transaction set) between the previous block and the next block is conflict-free, the next block packed in advance is directly entered into the consensus process to perform consensus on the next block.
In the embodiment, based on the full utilization of the computing resources of the redundant scheduling, the stepless prediction packaging of the transaction is realized, the transaction execution and the block packaging can be executed earlier, and the conflict detection of the transaction can be realized as early as possible.
Based on the same inventive concept, the embodiment of the invention also provides a stepless prediction execution system for blockchain transaction, and as the principle of the problem solved by the system is similar to that of the stepless prediction execution method for blockchain transaction, the implementation of the system can refer to the implementation of the method, and repeated parts are not repeated.
A blockchain transaction stepless prediction execution system, comprising:
the packaging module is used for acquiring a batch of transactions from the transaction pool by the height proposal node of the first block, pre-executing the transactions, and packaging the transactions to form a first candidate block; consensus node for consensus on the first candidate block;
the height proposal node for the second block receives the event confirmation information of the packaged first block, acquires a batch of transactions from the transaction pool and executes the transactions in advance, and packages the transactions to form a second candidate block;
the consensus module is used for the consensus node to perform consensus on the second candidate block by receiving the event confirmation information of the first block after the first candidate block completes the consensus;
and respectively carrying out transaction packaging and consensus on the subsequent blocks according to the packaging module and the consensus module until all the blocks finish transaction packaging and consensus.
Further, before performing consensus on any candidate block, the method further includes:
the verification module is used for verifying whether the current candidate block transaction conflicts with the transaction read-write set, if so, discarding all packed blocks and restarting the packing of all transactions; and if no conflict exists, the current candidate block is identified.
Specifically, referring to fig. 4, the packing module includes: and the transaction packaging event pushing submodule is used for generating event confirmation information of the first block after packaging is finished.
The packing module further includes: and the block consensus event pushing submodule is used for generating event confirmation information of the first block consensus completion.
The block chain transaction stepless prediction execution system provided by the embodiment is based on the redundancy scheduling calculation architecture, makes full use of redundancy calculation power, realizes transaction stepless prediction execution, performs transaction execution and block packaging earlier, and performs conflict detection on transactions early, so that block processing parallelism can be improved and transaction processing efficiency can be improved in a scene with less transaction conflicts.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method for performing stepless prediction of blockchain transactions, comprising the steps of:
the height proposal node of the first block acquires a batch of transactions from the transaction pool and executes the transactions in advance, and packages the transactions to form a first candidate block; consensus node consensus the first candidate block;
the height proposal node of the second block acquires a batch of transactions from the transaction pool and executes the transactions in advance by receiving the event confirmation information of the first block after packaging, and packages the transactions to form a second candidate block;
after the first candidate block is identified in a consensus manner, the consensus node receives event confirmation information of the first block after the first candidate block is identified in a consensus manner, and performs consensus on the second candidate block;
and repeatedly executing all the steps, and respectively carrying out transaction packaging and consensus on the subsequent blocks until all the blocks finish transaction packaging and consensus.
2. The method of claim 1, wherein prior to identifying any candidate blocks, the method comprises:
and verifying whether the current candidate block transaction conflicts with the transaction read-write set, and if no conflict exists, identifying the current candidate block.
3. The method of claim 2, wherein prior to identifying any candidate blocks, further comprising:
if there is a conflict, all blocks that have been packed are discarded, and packing of all transactions is resumed.
4. The method of claim 1, wherein the event confirmation information is constructed based on a blockchain transaction processing mechanism.
5. The method of claim 4, wherein the event confirmation information for the first block packing completion is constructed based on a transaction packing completion event confirmation mechanism.
6. The method of claim 4, wherein the event confirmation information for the completion of the first block consensus is constructed based on a block consensus completion event confirmation mechanism.
7. A system for performing stepless prediction of blockchain transactions, adapted to the method for performing stepless prediction of blockchain transactions according to any one of claims 1 to 6, comprising:
the packaging module is used for acquiring a batch of transactions from the transaction pool by the height proposal node of the first block, pre-executing the transactions, and packaging the transactions to form a first candidate block; means for consensus node consensus on the first candidate block;
the height proposal node for the second block receives the event confirmation information of the first block after packaging, acquires a batch of transactions from the transaction pool and pre-executes the transactions, and packages the transactions to form a second candidate block;
a consensus module, configured to perform consensus on the second candidate block by the consensus node after the first candidate block completes consensus by receiving event confirmation information that the first block completes consensus;
and respectively carrying out transaction packaging and consensus on the subsequent blocks according to the packaging module and the consensus module until all the blocks finish transaction packaging and consensus.
8. The system of claim 7, wherein prior to identifying any candidate block, further comprising:
the verification module is used for verifying whether the current candidate block transaction conflicts with the transaction read-write set, if so, discarding all packed blocks and restarting the packing of all transactions; and if no conflict exists, the current candidate block is identified in common.
9. The system of claim 7, wherein the packaging module comprises: and the transaction packaging event pushing submodule is used for generating the event confirmation information of the first block after packaging is finished.
10. The system of claim 7, wherein the packaging module comprises: and the block consensus event pushing submodule is used for generating event confirmation information of the first block consensus completion.
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