Synchronize blockchain status data

Synchronize blockchain status data

Technical background:

Blockchain technology: an emerging technology in which multiple computing devices jointly participate in "bookkeeping" and jointly maintain a complete distributed database, with the characteristics of decentralization, openness and transparency.

MPT tree (Merkle Patricia Tree): a Merkle tree variant used to organize and manage important information such as account status and transaction information in the blockchain.

Content:

Synchronization method: A new blockchain status data synchronization method is proposed to improve synchronization efficiency by distinguishing the current Merkle status tree (storing the latest account status) and the historical Merkle status tree (storing historical account status).

Implementation steps: Receive synchronization instructions → Instantly obtain the current Merkle status tree of the latest block → Store it in the local database to complete instant synchronization.

Optimization measures: Get the historical Merkle status tree offline in the background, update the local status tree to synchronize the latest block information, and update the status tree according to the target block transaction.

Technical solution details:

Data structure: The nodes on the current Merkle state tree are organized into a B+ tree data structure, and the nodes on the historical Merkle state tree are organized into an LSM tree data structure, which are stored in the Key-Value database.

Node identification: The key of the current Merkle state tree node is the node ID, and the key of the historical Merkle state tree node is the hash value of the node content.

Performance optimization: Reduce the storage of duplicate data through multi-tasking technology and improve query and modification performance.

System implementation:

Device module: includes receiving module, acquisition module, storage module, update module, generation module, modification module and creation module, which are responsible for different tasks in the synchronization process respectively.

Hardware structure: Involves hardware devices such as processors, memory, network interfaces and non-volatile memory.

Implementation examples and illustrations:

Illustration: Figures 1 to 6 show in detail the specific implementation methods of MPT state tree construction, node multi-tasking, synchronization process, system structure, etc.

Implementation description: Provides specific implementation steps and processes, including how to update the current and historical Merkle state trees based on transactions in the target block.

Advantages:

Synchronization rate improvement: By synchronizing only the current Merkle state tree, the amount of synchronized data is reduced, and the synchronization rate is significantly improved.

Data structure optimization: B+ tree and LSM tree are used to store the current and historical state tree nodes respectively to improve read and write performance.

System stability enhancement: By obtaining historical data offline and updating the state tree in real time in the background, the normal operation and data consistency of the node equipment are ensured.

Short answer questions:

What is the name?

Answer: Computer implementation method for synchronizing blockchain state data, non-temporary computer-readable media and computer-implemented system.

What are the main characteristics of blockchain technology?

Answer: Blockchain technology has the characteristics of decentralization, openness and transparency, each computing device can participate in database records, and data can be quickly synchronized between computing devices.

What is MPT tree (Merkle Patricia Tree)?

Answer: MPT tree is a Merkle tree variant used to organize and manage important data such as account status and transaction information in blockchain.

Which two Merkle state trees does this synchronization method mainly distinguish?

Answer: Current Merkle state tree (storing the latest account status) and historical Merkle state tree (storing historical account status).

What are the main steps of this synchronization method?

Answer: Receive synchronization instructions → Immediately obtain the current Merkle state tree of the latest block → Store it in the local database to complete instant synchronization.

What is the difference in storage structure between the current Merkle state tree and the historical Merkle state tree?

Answer: The nodes on the current Merkle state tree are organized into a B+ tree data structure, while the nodes on the historical Merkle state tree are organized into an LSM tree data structure.

In this, how to identify the nodes on the current Merkle state tree and the historical Merkle state tree?

Answer: The key of the current Merkle state tree node is the node ID, and the key of the historical Merkle state tree node is the hash value of the node content.

What are the main advantages of this?

A: The advantages include increased synchronization rate (reducing the amount of synchronized data by synchronizing only the current Merkle state tree), optimized data structure (using B+ tree and LSM tree for separate storage to improve read and write performance), and enhanced system stability (ensuring normal operation of node devices and data consistency by obtaining historical data offline and updating the state tree in real time).