WO2022143540A1

WO2022143540A1 - Block chain index storage method and apparatus, computer device and medium

Info

Publication number: WO2022143540A1
Application number: PCT/CN2021/141698
Authority: WO
Inventors: 邱炜伟; 李伟; 黄方蕾; 胡麦芳; 张珂杰; 蔡亮; 吴志强
Original assignee: 杭州趣链科技有限公司
Priority date: 2020-12-31
Filing date: 2021-12-27
Publication date: 2022-07-07
Also published as: CN112765271A; CN112765271B

Abstract

The present application discloses a block chain index storage method and apparatus, a computer device and a medium. Said method comprises: constructing a transaction hash index, wherein the transaction hash index comprises version information, timestamp information and a transaction hash value; acquiring, on the basis of the timestamp information, a sub-database matching the timestamp information from a transaction index storage database as a target database, wherein the transaction index storage database contains at least two sub-databases, and each sub-database is used to store transaction hash indexes of a fixed time interval; taking the transaction hash index as Key, taking the block number of the transaction corresponding to the transaction hash index as Value, and taking the Key and the Value as a key value pair, and storing same in the target database. The present application improves the data read-write efficiency.

Description

Storage method, device, computer equipment and medium for blockchain index

This application claims the priority of the Chinese patent application filed on December 31, 2020 with the application number 202011640211.3 and the title of the invention is "Blockchain Index Storage Method, Device, Computer Equipment and Medium", the entire content of which is Incorporated herein by reference.

technical field

The present application relates to the field of blockchain technology, and in particular, to a method, device, computer equipment and medium for storing a blockchain index.

Background technique

目前区块链中，交易哈希索引是根据交易与区块内容，通过哈希算法计算得到的无规则字符数组。而区块链往往需要对外提供一类接口，通过交易哈希获取交易及相关信息，包括回执等等。首先通过交易哈希，获取到此交易所在区块的区块号，之后再通过区块号获取完整区块，遍历区块找到此交易。同样，区块链系统需要存储交易哈希到区块号的索引信息。发明人在实现本申请的过程中发现，现有技术至少存在如下问题：交易哈希完全随机，同时对其读写非常频繁，导致存储层将面临随机读写问题，效率极低。In the current blockchain, the transaction hash index is a random character array calculated by the hash algorithm according to the transaction and block content. The blockchain often needs to provide a type of interface to the outside world to obtain transactions and related information through transaction hashes, including receipts and so on. First, obtain the block number of the block of this exchange through the transaction hash, then obtain the complete block through the block number, and traverse the block to find the transaction. Likewise, blockchain systems need to store index information that hashes transactions to block numbers. During the process of realizing the present application, the inventor found that the prior art has at least the following problems: the transaction hash is completely random, and at the same time, it is read and written very frequently, so that the storage layer will face the problem of random read and write, and the efficiency is extremely low.

technical problem

The embodiments of the present application provide a storage method, device, computer equipment and storage medium for a blockchain index, so as to improve the efficiency of reading and writing a transaction hash index on the blockchain.

technical solutions

In order to solve the above technical problems, the embodiments of the present application provide a method for storing a blockchain index, including:

constructing a transaction hash index, where the transaction hash index includes version information, timestamp information and transaction hash value;

Based on the timestamp information, a sub-database matching the timestamp information is obtained from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, and each sub-database uses A transaction hash index for storing fixed time intervals;

The transaction hash index is used as the Key, the block number of the transaction corresponding to the transaction hash index is used as the Value, and the Key and the Value are used as a key-value pair, and are stored in the target database.

Optionally, the constructing the transaction hash index includes:

When the block link receives the transaction information, according to the transaction information, calculate the transaction hash value, and obtain the transaction time included in the transaction information, and generate timestamp information;

determining version information based on the timestamp information;

A transaction hash index is generated according to the version information, the timestamp information and the transaction hash value.

Optionally, based on the timestamp information, the sub-database that matches the timestamp information is obtained from the transaction index storage database, and the target database includes:

obtaining a fixed time interval corresponding to the sub-database;

Determine the fixed time interval to which the timestamp information belongs by traversing the matching, as the target time interval;

The sub-database corresponding to the target time interval is used as the target database.

Optionally, the sub-database presets a storage upper limit, and storing the Key and the Value as a key-value pair in the target database includes:

Judging whether the data stored in the target database reaches the preset storage upper limit, and obtaining a judgment result;

If the judgment result is that the data stored in the target database reaches the preset storage upper limit, a new database with the same fixed time interval as the target database is created, and the key-value pair is stored in the newly created database.

Optionally, the blockchain index storage method further includes:

If a transaction hash query request is received, the transaction hash query request is parsed to obtain target timestamp information;

Determine the sub-database to be queried based on the target timestamp information;

Obtain the target block number from the sub-database to be queried by means of a key-value pair query;

According to the method of disk reading, the block corresponding to the target block number is obtained as the target block;

Traverse the target block to obtain transaction information corresponding to the transaction hash query request.

In order to solve the above technical problems, the embodiments of the present application also provide a storage device for a blockchain index, including:

a building module for building a transaction hash index, the transaction hash index including version information, timestamp information and transaction hash value;

The matching module is configured to obtain, based on the timestamp information, a sub-database matching the timestamp information from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, each of which is a sub-database. The sub-database is used to store the transaction hash index of the fixed time interval;

A storage module, configured to use the transaction hash index as a key, use the block number of the transaction corresponding to the transaction hash index as a value, and store the key and the value as a key-value pair in the target database.

Optionally, the building blocks include:

a hash value calculation unit, configured to calculate the transaction hash value according to the transaction information when the block link receives the transaction information, and obtain the transaction time included in the transaction information, and generate timestamp information;

a version determination unit, configured to determine version information based on the timestamp information;

an index generating unit, configured to generate a transaction hash index according to the version information, the timestamp information and the transaction hash value.

Optionally, the matching module includes:

an interval range obtaining unit, used to obtain a fixed time interval corresponding to the sub-database;

The current interval determination unit is used to determine the fixed time interval to which the timestamp information belongs by traversing and matching, as the target time interval;

The target database determination unit is configured to use the sub-database corresponding to the target time interval as the target database.

Optionally, the sub-database presets a storage upper limit, and the storage module includes:

an upper limit judgment unit, configured to judge whether the stored data in the target database reaches the preset storage upper limit, and obtain a judgment result;

A new database unit, configured to create a new database with the same fixed time interval as the target database if the judgment result is that the data stored in the target database reaches the preset storage upper limit, and store the key-value pair to the new database.

Optionally, the blockchain index storage device further includes:

a request parsing module, configured to parse the transaction hash query request to obtain target timestamp information if a transaction hash query request is received;

a sub-database determination module, configured to determine the sub-database to be queried based on the target timestamp information;

a block number obtaining module, used for obtaining the target block number from the sub-database to be queried by means of a key-value pair query;

a block determination module, used for obtaining the block corresponding to the target block number according to the method of disk reading, as the target block;

The traversal module is used for traversing the target block to obtain transaction information corresponding to the transaction hash query request.

In order to solve the above technical problem, an embodiment of the present application further provides a computer device, including a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor, and the processor executes the The steps of implementing the above-mentioned storage method of the blockchain index when the computer-readable instructions are described.

In order to solve the above technical problem, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer-readable instructions, and when the computer-readable instructions are executed by a processor, the above-mentioned blockchain is implemented The steps of the storage method of the index.

beneficial effect

The storage method, device, computer equipment, and storage medium for a blockchain index provided by the embodiments of the present application construct a transaction hash index. The transaction hash index includes version information, timestamp information, and transaction hash value. Based on the timestamp information, The sub-database that matches the timestamp information is obtained from the transaction index storage database as the target database, wherein the transaction index storage database includes at least two sub-databases, each sub-database is used to store transaction hash indexes in a fixed time interval, and the transaction hash index The index is used as the Key, the block number of the transaction corresponding to the transaction hash index is used as the Value, and the Key and Value are used as the key-value pair to store in the target database, so as to optimize the random write of the transaction index to sequential write, and store the transaction index It is stored in an independent sub-database to ensure high-performance reading and writing of the database and improve the efficiency of data reading and writing.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

FIG. 1 is an exemplary system architecture diagram to which the present application can be applied;

2 is a flowchart of an embodiment of a method for storing a blockchain index of the present application;

3 is a schematic structural diagram of an embodiment of a storage device for a blockchain index according to the present application;

FIG. 4 is a schematic structural diagram of an embodiment of a computer device according to the present application.

Detailed ways

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this application; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only It is not intended to limit the application; the terms "comprising" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, rather than to describe a specific order.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

Please refer to FIG. 1 . As shown in FIG. 1 , the system architecture 100 may include terminal devices 101 , 102 , and 103 , a network 104 and a server 105 . The network 104 is a medium used to provide a communication link between the terminal devices 101 , 102 , 103 and the server 105 . The network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others.

The user can use the terminal devices 101, 102, 103 to interact with the server 105 through the network 104 to receive or send messages and the like.

The terminal devices 101, 102, 103 can be various electronic devices with display screens and support web browsing, including but not limited to smart phones, tablet computers, e-book readers, MP3 players (Moving Picture E interface display perts Group Audio Layer). III, Motion Picture Expert Compression Standard Audio Layer 3), MP4 (Moving Picture The E interface shows the perts Group Audio Layer IV, the standard audio layer for video expert compression 4) Players, Laptops and Desktops, etc.

The server 105 may be a server that provides various services, such as a background server that provides support for the pages displayed on the terminal devices 101 , 102 , and 103 .

It should be noted that the storage method of the blockchain index provided by the embodiment of the present application is executed by the server, and correspondingly, the storage device of the blockchain index is set in the server.

It should be understood that the numbers of terminal devices, networks and servers in FIG. 1 are merely illustrative. According to implementation requirements, there may be any number of terminal devices, networks, and servers, and the terminal devices 101 , 102 , and 103 in the embodiments of the present application may specifically correspond to application systems in actual production.

Please refer to FIG. 2. FIG. 2 shows a method for storing a blockchain index provided by an embodiment of the present application. The method is applied to the server in FIG. 1 as an example for description. The details are as follows:

S201: Build a transaction hash index, where the transaction hash index includes version information, timestamp information, and transaction hash value.

Specifically, when a transaction occurs, version information, timestamp information and transaction hash value are generated through transaction information, and then a transaction hash index is constructed.

Among them, the version information is used to ensure the compatibility of the transaction hash index. When the number of blocks increases to more than eight bytes, the version information can be increased to extend the block field to sixteen bytes. The problem.

Among them, the timestamp information in the transaction hash is directly taken from the timestamp carried by the transaction. During the normal execution process, the order in which the blockchain packages and executes the transaction is basically the same as the time when the transaction is generated, ensuring that the transaction is written locally in the database. sex and sequence.

Among them, the transaction hash is to add transaction records to the blockchain through hashing, including the address of sending coins, the address of receiving coins, the sending time, the time of receiving coins, the number of confirmations, etc. Users can check their recharge in their personal wallets Whether there is any error, after all confirmations, the transferred coins can be credited to the account in time. The transaction corresponding to each hash is a unique transaction, which ensures the privacy and security of the transaction.

For the specific implementation process of constructing the transaction hash index, reference may also be made to the descriptions of the subsequent embodiments, which are not repeated here to avoid repetition.

S202: Based on the timestamp information, obtain a sub-database matching the timestamp information from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, and each sub-database is used to store transactions in a fixed time interval Hash index.

In this embodiment, a transaction index storage database is preset, and the transaction index storage database includes at least two sub-databases, each sub-database is used to store a transaction hash index of a fixed time interval, including a fixed time consisting of a maximum timestamp and a minimum timestamp The sub-database only stores the transaction hash index within its corresponding fixed time interval. By matching the timestamp information corresponding to the transaction with each sub-data, the sub-database that needs to store the current transaction data is determined as the target database.

It should be noted that, if the existing sub-database does not match the fixed time interval containing the timestamp information corresponding to the current transaction, the sub-database corresponding to the fixed time interval of the most node is obtained as the target database, and the target database is used. The maximum timestamp or minimum timestamp of the corresponding fixed time interval is adjusted so that the target database contains timestamp information corresponding to the current transaction.

For example, in a specific implementation, there are three sub-databases, and the times are respectively 8:00 to 9:00, 9:00 to 10:00, and 10:00 to 11:00. If the new transaction hash timestamp is 7:00, the first sub-database exists, and the first database time is updated to 7:00 to 9:00. If the new transaction hash timestamp is 8:30, the first sub-database exists. A sub-database, the second database exists at 9:30, and the third exists at 10:30.

It should be noted that if there are occasional older transactions, it is also possible to find the correct sub-database for writing based on its timestamp information, and since the read requests of the blockchain are concentrated on new data, older databases can be viewed as When the situation is closed, the memory usage is reduced. When reading is required, it can be reopened for reading, which is conducive to improving the efficiency of data reading and writing.

S203: Use the transaction hash index as the Key, use the block number of the transaction corresponding to the transaction hash index as the Value, and use the Key and Value as a key-value pair, and store them in the target database.

Specifically, the transaction hash index is used as the Key, and the block number of the transaction corresponding to the transaction hash index is used as the Value, so that the transaction hash index and the transaction block number are stored in the target database in the form of a key-value pair.

In this embodiment, by constructing a transaction hash index, the transaction hash index includes version information, timestamp information and transaction hash value, and based on the timestamp information, a sub-database matching the timestamp information is obtained from the transaction index storage database, As the target database, the transaction index storage database includes at least two sub-databases, each sub-database is used to store the transaction hash index in a fixed time interval, the transaction hash index is used as the key, and the transaction hash index corresponds to the block number of the transaction As Value, and store Key and Value as key-value pairs in the target database, optimize the random write of transaction index to sequential write, and store the transaction index in an independent sub-database to ensure high-performance reading and writing of the database and improve the Data read and write efficiency.

In some optional implementations of this embodiment, in step S201, constructing a transaction hash index includes:

When the block link receives the transaction information, according to the transaction information, the transaction hash value is calculated, and the transaction time contained in the transaction information is obtained, and the timestamp information is generated;

Based on the timestamp information, determine the version information;

Generate transaction hash index based on version information, timestamp information and transaction hash value.

Specifically, according to the information in the transaction, including its time information, the transaction hash is calculated. The transaction usually contains various types of information such as the address of the initiator, the address of the receiver, the transaction payload, and the signature. The transaction hash usually integrates all transactions. Information, calculated using a hash algorithm, there are many options for hash algorithms. In this embodiment, the time information is embedded in the transaction hash. In a specific implementation, the first byte is the version information, the subsequent eight bytes are filled with the timestamp information, and finally connected to the hash algorithm calculated by the hash algorithm. The transaction hash value can form a transaction hash index.

For example, assuming the current version is 0 and the current timestamp is 1603975389074698000, expressed in hexadecimal, the first byte of the transaction hash index is 0x00, and the last eight bytes are 0x1642771e3e442f00, that is, the first nine bytes are 0x001642771e3e442f00, followed by the hash value obtained by the old hash calculation method. During storage, according to this timestamp and the above-mentioned transaction index storage to index database process, it is inserted into the database.

It should be noted that the setting of the version information, the setting of the timestamp information, and the number of bits used for the hash can all be changed according to specific scenarios, which are not specifically limited here.

In this embodiment, when the number of blocks increases to more than eight bytes, the version information is increased, and the block field can be extended to sixteen bytes. Such a design guarantees all problems of subsequent compatibility.

In this embodiment, a transaction hash index is generated by using version information, timestamp information, and transaction hash value, and the version information and timestamp information used for indexing are written into the transaction hash index, without the need to read through the disk. The index number is obtained by writing, which reduces the number of disk reads and writes, and improves the efficiency of data read and write. Timestamp information is used as an index to optimize the random write of transaction index to sequential write, which ensures high-performance read and write of the database and improves data read and write. efficiency.

In some optional implementations of this embodiment, in step S202, based on the timestamp information, a sub-database matching the timestamp information is obtained from the transaction index storage database, and the target database includes:

Get the fixed time interval corresponding to the sub-database;

By traversing the matching, the fixed time interval of the timestamp information is determined as the target time interval;

Specifically, each sub-database is used to store transaction index information within a specific time range, record the minimum timestamp and the maximum timestamp of the transaction stored in the database, obtain the fixed time interval corresponding to each sub-database, and compare the timestamp information with the timestamp information. If there is a time point in the timestamp information contained between the smallest timestamp and the largest timestamp in the fixed time interval, the fixed time interval is used as the target time interval, and the target time interval corresponds to The sub-database is used as the target database, and the target database is subsequently used to read and write the transaction data.

In this embodiment, the target database is determined by matching the timestamp information with the fixed time interval corresponding to each sub-database, so as to realize the rapid determination of the target database, which is beneficial to improve the efficiency of subsequent data reading and writing and data query efficiency.

In some optional implementations of this embodiment, the sub-database presets a storage upper limit, and in step S203, using Key and Value as a key-value pair, and storing them in the target database includes:

Judging whether the stored data in the target database reaches the preset storage upper limit, and obtaining the judgment result;

Wherein, the preset storage upper limit may be set according to actual application scenario requirements, for example, set to 20,000, etc., which is not specifically limited here.

It should be understood that the preset storage upper limit for the sub-databases limits the size of each sub-database, and ensures stable performance of the sub-databases during subsequent data reading and writing, which is conducive to improving data reading and writing efficiency.

In this embodiment, each sub-database presets a storage upper limit, and when the target database stores data reaches the preset storage upper limit, a new database with the same fixed time interval as the target database is created to store key-value pairs. Since each sub-database is limited The size of the database, so the read and write performance is stable, and the data read and write efficiency is improved.

In some optional implementations of this embodiment, the storage method of the blockchain index further includes:

Obtain the target block number from the sub-database to be queried by means of key-value pair query;

Traverse the target block to obtain the transaction information corresponding to the transaction hash query request.

In this embodiment, each sub-database stores a transaction hash index of a fixed time interval, and the sub-database to be queried is determined based on the target timestamp information. Matching is performed through the fixed time interval corresponding to each sub-database, and the target timestamp is included The sub-database of the time point in the information is determined to be the sub-database that stores the transaction hash index corresponding to the target timestamp information, and is further used as the sub-database to be queried.

In this embodiment, when a transaction hash query request is received, the target timestamp information is obtained by parsing the transaction hash query request, and then based on the target timestamp information, the sub-database to be queried is determined, and the sub-data is sorted by time interval. Sequential storage is beneficial to improve the efficiency of determining the sub-database to be queried. At the same time, by querying key-value pairs, the target block number is obtained from the sub-database to be queried, and then the target block number is obtained according to the method of disk reading. The block corresponding to the block number is used as the target block, and then traverses the target block to obtain the transaction information corresponding to the transaction hash query request, reducing the number of disk reads and improving the efficiency of transaction information query.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

FIG. 3 shows a schematic block diagram of a storage device of a blockchain index corresponding to the storage method of a blockchain index in the above-mentioned embodiment. As shown in FIG. 3 , the storage device of the blockchain index includes a building module 31 , a matching module 32 and a storage module 33 . The detailed description of each functional module is as follows:

The building module 31 is used to build a transaction hash index, and the transaction hash index includes version information, timestamp information and transaction hash value;

The matching module 32 is configured to obtain, based on the timestamp information, a sub-database matching the timestamp information from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, and each sub-database is used to store fixed data. The transaction hash index of the time interval;

The storage module 33 is configured to use the transaction hash index as the Key, use the block number of the transaction corresponding to the transaction hash index as the Value, and store the Key and Value as a key-value pair in the target database.

Optionally, building block 31 includes:

The hash value calculation unit is used to calculate the transaction hash value according to the transaction information when the block link receives the transaction information, obtain the transaction time included in the transaction information, and generate timestamp information;

a version determination unit, configured to determine the version information based on the timestamp information;

The index generation unit is used to generate the transaction hash index according to the version information, the timestamp information and the transaction hash value.

Optionally, the matching module 32 includes:

The interval range obtaining unit is used to obtain the fixed time interval corresponding to the sub-database;

The target database determination unit is used for taking the sub-database corresponding to the target time interval as the target database.

Optionally, the sub-database presets a storage upper limit, and the storage module 33 includes:

an upper limit judgment unit, configured to judge whether the stored data in the target database reaches a preset storage upper limit, and obtain a judgment result;

A new database unit is used to create a new database with the same fixed time interval as the target database if the judgment result is that the data stored in the target database reaches the preset storage upper limit, and store the key-value pair in the new database.

Optionally, the blockchain index storage device further includes:

The request parsing module is used to parse the transaction hash query request to obtain target timestamp information if a transaction hash query request is received;

a sub-database determination module, used for determining the sub-database to be queried based on the target timestamp information;

The block number acquisition module is used to obtain the target block number from the sub-database to be queried by means of key-value pair query;

The block determination module is used to obtain the block corresponding to the target block number as the target block according to the method of disk reading;

The traversal module is used to traverse the target block and obtain the transaction information corresponding to the transaction hash query request.

For the specific limitation of the storage device of the blockchain index, please refer to the limitation on the storage method of the blockchain index above, which will not be repeated here. Each module in the above-mentioned storage device of the blockchain index can be implemented in whole or in part by software, hardware and combinations thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

To solve the above technical problems, the embodiments of the present application also provide computer equipment. Please refer to FIG. 4 for details. FIG. 4 is a block diagram of a basic structure of a computer device according to this embodiment.

The computer device 4 includes a memory 41, a processor 42, and a network interface 43 that communicate with each other through a system bus. It should be pointed out that the figure only shows the computer device 4 having the components connected to the memory 41, the processor 42, and the network interface 43, but it should be understood that it is not required to implement all the components shown, and alternative implementations of more more or fewer components. Among them, those skilled in the art can understand that the computer device here is a device that can automatically perform numerical calculation and/or information processing according to pre-set or stored instructions, and its hardware includes but is not limited to microprocessors, special-purpose Integrated circuit (Application Specific Integrated Circuit, ASIC), Programmable Gate Array (Field-Programmable Gate Array, FPGA), Digital Signal Processor (Digital Signal Processor, DSP), embedded devices, etc.

The computer equipment may be a desktop computer, a notebook computer, a palmtop computer, a cloud server and other computing equipment. The computer device can perform human-computer interaction with the user through a keyboard, a mouse, a remote control, a touch pad or a voice control device.

The memory 41 includes at least one type of readable storage medium, which may be non-volatile or volatile, including flash memory, hard disk, multimedia card, card-type storage (for example, SD or D interface display memory, etc.), random access memory (RAM), static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM) , magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 41 may be an internal storage unit of the computer device 4 , such as a hard disk or a memory of the computer device 4 . In other embodiments, the memory 41 may also be an external storage device of the computer device 4 , such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, flash card (Flash Card), etc. Of course, the memory 41 may also include both the internal storage unit of the computer device 4 and its external storage device. In this embodiment, the memory 41 is generally used to store the operating system and various application software installed on the computer device 4, such as computer-readable instructions for storing a blockchain index. In addition, the memory 41 can also be used to temporarily store various types of data that have been output or will be output.

The processor 42 may be a central processing unit (Central Processing Unit) in some embodiments. Processing Unit, CPU), controller, microcontroller, microprocessor, or other data processing chip. This processor 42 is typically used to control the overall operation of the computer device 4 . In this embodiment, the processor 42 is configured to run the computer-readable instructions stored in the memory 41 to process data, for example, run the stored computer-readable instructions of the blockchain index.

The network interface 43 may include a wireless network interface or a wired network interface, and the network interface 43 is generally used to establish a communication connection between the computer device 4 and other electronic devices.

The present application also provides another implementation manner, which is to provide a computer-readable storage medium, where an interface display program is stored in the computer-readable storage medium, and the interface display program can be executed by at least one processor, so that all The at least one processor executes the steps of the method for storing the blockchain index as described above.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.

Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The accompanying drawings show the preferred embodiments of the present application, but do not limit the scope of the patent of the present application. This application may be embodied in many different forms, rather these embodiments are provided so that a thorough and complete understanding of the disclosure of this application is provided. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. . Any equivalent structure made by using the contents of the description and drawings of the present application, which is directly or indirectly used in other related technical fields, is also within the scope of protection of the patent of the present application.

Claims

A storage method for a blockchain index, characterized in that the storage method for the blockchain index comprises:

constructing a transaction hash index, where the transaction hash index includes version information, timestamp information and transaction hash value;

Based on the timestamp information, a sub-database matching the timestamp information is obtained from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, and each sub-database uses A transaction hash index for storing fixed time intervals;

The transaction hash index is used as the Key, the block number of the transaction corresponding to the transaction hash index is used as the Value, and the Key and the Value are used as a key-value pair, and are stored in the target database.
The method for storing a blockchain index according to claim 1, wherein the constructing the transaction hash index comprises:

When the block link receives the transaction information, according to the transaction information, calculate the transaction hash value, and obtain the transaction time included in the transaction information, and generate timestamp information;

determining version information based on the timestamp information;

A transaction hash index is generated according to the version information, the timestamp information and the transaction hash value.
The method for storing a blockchain index according to claim 1, wherein the sub-database that matches the timestamp information is obtained from the transaction index storage database based on the timestamp information, and the target database includes :

obtaining a fixed time interval corresponding to the sub-database;

Determine the fixed time interval to which the timestamp information belongs by traversing the matching, as the target time interval;

The sub-database corresponding to the target time interval is used as the target database.
The method for storing a blockchain index according to claim 1, wherein the sub-database presets a storage upper limit, and storing the Key and the Value as a key-value pair in the target database comprises: :

Judging whether the data stored in the target database reaches the preset storage upper limit, and obtaining a judgment result;

If the judgment result is that the data stored in the target database reaches the preset storage upper limit, a new database with the same fixed time interval as the target database is newly created, and the key-value pair is stored in the newly created database.
The storage method of the blockchain index according to claim 1, wherein the storage method of the blockchain index further comprises:

If a transaction hash query request is received, the transaction hash query request is parsed to obtain target timestamp information;

Determine the sub-database to be queried based on the target timestamp information;

Obtain the target block number from the sub-database to be queried by means of a key-value pair query;

According to the method of disk reading, the block corresponding to the target block number is obtained as the target block;

Traverse the target block to obtain transaction information corresponding to the transaction hash query request.
The storage method of the blockchain index according to claim 2, wherein the storage method of the blockchain index further comprises:

If a transaction hash query request is received, the transaction hash query request is parsed to obtain target timestamp information;

Determine the sub-database to be queried based on the target timestamp information;

Obtain the target block number from the sub-database to be queried by means of a key-value pair query;

According to the method of disk reading, the block corresponding to the target block number is obtained as the target block;

Traverse the target block to obtain transaction information corresponding to the transaction hash query request.
The storage method of the blockchain index according to claim 3, wherein the storage method of the blockchain index further comprises:

If a transaction hash query request is received, the transaction hash query request is parsed to obtain target timestamp information;

Determine the sub-database to be queried based on the target timestamp information;

Obtain the target block number from the sub-database to be queried by means of a key-value pair query;

According to the method of disk reading, the block corresponding to the target block number is obtained as the target block;

Traverse the target block to obtain transaction information corresponding to the transaction hash query request.
The storage method of the blockchain index according to claim 4, wherein the storage method of the blockchain index further comprises:

If a transaction hash query request is received, the transaction hash query request is parsed to obtain target timestamp information;

Determine the sub-database to be queried based on the target timestamp information;

Obtain the target block number from the sub-database to be queried by means of a key-value pair query;

According to the method of disk reading, the block corresponding to the target block number is obtained as the target block;

Traverse the target block to obtain transaction information corresponding to the transaction hash query request.
A storage device for a blockchain index, characterized in that the storage device for the blockchain index comprises:

a building module for building a transaction hash index, the transaction hash index including version information, timestamp information and transaction hash value;

The matching module is configured to obtain, based on the timestamp information, a sub-database matching the timestamp information from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, each of which is a sub-database. The sub-database is used to store the transaction hash index of the fixed time interval;

A storage module, configured to use the transaction hash index as a key, use the block number of the transaction corresponding to the transaction hash index as a value, and store the key and the value as a key-value pair in the target database.
The storage device for a blockchain index according to claim 9, wherein the building module comprises:

a hash value calculation unit, configured to calculate the transaction hash value according to the transaction information when the block link receives the transaction information, and obtain the transaction time included in the transaction information, and generate timestamp information;

a version determination unit, configured to determine version information based on the timestamp information;

an index generating unit, configured to generate a transaction hash index according to the version information, the timestamp information and the transaction hash value.
The storage device for a blockchain index according to claim 9, wherein the matching module comprises:

an interval range obtaining unit, used to obtain a fixed time interval corresponding to the sub-database;

The current interval determination unit is used to determine the fixed time interval to which the timestamp information belongs by traversing and matching, as the target time interval;

The target database determination unit is configured to use the sub-database corresponding to the target time interval as the target database.
A computer device, comprising a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor, wherein the processor implements the following when executing the computer-readable instructions Storage method of blockchain index:

constructing a transaction hash index, where the transaction hash index includes version information, timestamp information and transaction hash value;

Based on the timestamp information, a sub-database matching the timestamp information is obtained from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, and each sub-database uses A transaction hash index for storing fixed time intervals;

The transaction hash index is used as the Key, the block number of the transaction corresponding to the transaction hash index is used as the Value, and the Key and the Value are used as a key-value pair, and are stored in the target database.
The computer device of claim 12, wherein the constructing the transaction hash index comprises:

When the block link receives the transaction information, according to the transaction information, calculate the transaction hash value, and obtain the transaction time included in the transaction information, and generate timestamp information;

determining version information based on the timestamp information;

A transaction hash index is generated according to the version information, the timestamp information and the transaction hash value.
The computer device according to claim 12, wherein, based on the time stamp information, the sub-database that matches the time stamp information is obtained from the transaction index storage database, and the target database comprises:

obtaining a fixed time interval corresponding to the sub-database;

Determine the fixed time interval to which the timestamp information belongs by traversing the matching, as the target time interval;

The sub-database corresponding to the target time interval is used as the target database.
The computer device according to claim 12, wherein the sub-database presets a storage upper limit, and storing the Key and the Value as a key-value pair in the target database comprises:

Judging whether the data stored in the target database reaches the preset storage upper limit, and obtaining a judgment result;

If the judgment result is that the data stored in the target database reaches the preset storage upper limit, a new database with the same fixed time interval as the target database is newly created, and the key-value pair is stored in the newly created database.
The computer device according to claim 12, wherein when the processor executes the computer-readable instructions, the processor further implements the following storage method of the blockchain index:

If a transaction hash query request is received, the transaction hash query request is parsed to obtain target timestamp information;

Determine the sub-database to be queried based on the target timestamp information;

Obtain the target block number from the sub-database to be queried by means of a key-value pair query;

According to the method of disk reading, the block corresponding to the target block number is obtained as the target block;

Traverse the target block to obtain transaction information corresponding to the transaction hash query request.
A computer-readable storage medium storing computer-readable instructions, characterized in that, when the computer-readable instructions are executed by a processor, the following storage method for a blockchain index is implemented:

constructing a transaction hash index, where the transaction hash index includes version information, timestamp information and transaction hash value;

Based on the timestamp information, a sub-database matching the timestamp information is obtained from the transaction index storage database as a target database, wherein the transaction index storage database includes at least two sub-databases, and each sub-database uses A transaction hash index for storing fixed time intervals;

The transaction hash index is used as the Key, the block number of the transaction corresponding to the transaction hash index is used as the Value, and the Key and the Value are used as a key-value pair, and are stored in the target database.
The computer-readable storage medium of claim 17, wherein the constructing the transaction hash index comprises:

When the block link receives the transaction information, according to the transaction information, calculate the transaction hash value, and obtain the transaction time included in the transaction information, and generate timestamp information;

determining version information based on the timestamp information;

A transaction hash index is generated according to the version information, the timestamp information and the transaction hash value.
The computer-readable storage medium according to claim 17, wherein, based on the time stamp information, the sub-database that matches the time stamp information is obtained from the transaction index storage database, and the target database comprises:

obtaining a fixed time interval corresponding to the sub-database;

Determine the fixed time interval to which the timestamp information belongs by traversing the matching, as the target time interval;

The sub-database corresponding to the target time interval is used as the target database.
The computer-readable storage medium according to claim 17, wherein the sub-database presets a storage upper limit, and storing the Key and the Value as a key-value pair to the target database comprises:

Judging whether the data stored in the target database reaches the preset storage upper limit, and obtaining a judgment result;

If the judgment result is that the data stored in the target database reaches the preset storage upper limit, a new database with the same fixed time interval as the target database is newly created, and the key-value pair is stored in the newly created database.