Understanding Mempool Ethereum indexing: Deep diving
The Ethereum community has long fascinated the internal functioning of its Mempool, a key element of the blockchain consensus mechanism. One of the often inverted aspects of Mempool is the way it indexes transactions based on various criteria. In this article, we will examine the purpose of these five criteria used to index unconfirmed transactions in Mempool.
context: unconfirmed transactions and MEMPOOL
In Ethereum, every time the user initiates the transaction, he must be verified by the network before adding to blockchain. This process takes a few steps, including validation, extraction and broadcasting. During this phase of validation, unconfirmed transactions are stored in Mempool, which is essentially a buffer for expecting transactions.
Unconfirmed transactions can take various forms, such as “plastic” or “incomplete” transactions that require additional data that should be processed by the validator before confirmation. These plastic transactions require additional work from miners to complete their processing and broadcasting them to the network.
Five criteria: deeper look
In the Bitcoin source code in txmpool.h, the commentary explains that unconfirmed transactions are indexed using five criteria:
MAPTX: This is Boost :: Multi_index (Boost :: Container :: List), which sorts MEMPOOL based on these five criteria.
* Criteria 1: Hash proof of work
- The first criterion is the abbreviation (`
proofwork ') of each transaction. Miners use this shortcut to see if the transaction was extracted by a miner who solved a complex mathematical puzzle.
* Criteria 2: block number
- The second criterion is the number of blocks associated with the transaction. This helps miners narrow down possible locations in which the transaction should be broadcast.
* Criteria 3: Number of transactions
- The third criterion is the number of confirmations required to confirm the transaction ('' confirmation '). This ensures that all transactions are verified before adding to Mempool.
* Criteria 4: Hashes of miners
- The fourth criterion is the shortcut of every miner involved in the transaction ("minehash"). This allows miners to check if they actually got the transaction correctly.
* Criteria 5: Number of unconfirmed transactions
- The fifth criterion is the number of unconfirmed transactions related to a specific miner (` unnecessary transcetions). This helps miners to determine which transactions still expect verification and ensure that they are not trying to give them unnecessarily.
Application
To sum up, the MEmpool indexing system in Ethereum uses five criteria to determine the order and priority of unconfirmed transactions. These criteria help miners optimize the extraction process, determining transaction priorities based on factors such as evidence, the number of blocks, the number of transactions, miner shortcuts and unconfirmed number of transactions.
This understanding is crucial for the optimization of decentralized Ethereum networks, ensuring effective management of network congestion and preventing unnecessary network activity. Because the Ethereum community is still developing, it is necessary to deeply understand these indexing criteria to maintain optimal performance and security.
Additional resources
- More information about the Ethereum architecture and indexing system in Ethereum can be found in the official Ethereum documentation: [ /docs.ethereum.org/guides/eth-2-on-blocks/mmpool/index.
