Performing parallel execution of transactions in a distributed ledger system

A non-transitory, computer-readable storage medium storing one or more instructions executable by a computer system to perform operations for executing a plurality of transactions in a blockchain network, wherein the blockchain network comprises a plurality of network nodes, the operations comprising:

• receiving, by a network node of the blockchain network, a plurality of transactions to be executed in a blockchain network;
• for each of the plurality of transactions, determining that the transaction is a first-type transaction or a second-type transaction;
• dividing, by the network node, the plurality of transactions into one or more groups of transactions based on one or more accounts affected by executing the first-type transaction for each first-type transaction and one or more accounts affected by pre-executing the second-type transaction for each second-type transaction,
• arranging, by the network node, each of the one or more groups of transactions that affect the one or more accounts by executing the first-type transactions into a first-type transaction group and each of the one or more groups of transactions that affect the one or more accounts by executing the second-type transactions into a second-type transaction group;
• arranging, by the network node, the first-type transaction group and the second-type transaction group in a parallel execution order so that the one or more accounts affected by each of the plurality of transactions in the first-type transaction group are not affected by the one or more accounts affected by each of the plurality of transactions in the second-type transaction group;
• and
• executing the plurality of transactions by executing, in parallel, the one or more groups of transactions.

A computer-implemented system, comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations for executing a plurality of transactions in a blockchain network, wherein the blockchain network comprises a plurality of network nodes, the operations comprising:
• receiving, by a network node of the blockchain network, a plurality of transactions to be executed in a blockchain network;
• for each of the plurality of transactions, determining that the transaction is a first-type transaction or a second-type transaction;
• dividing, by the network node, the plurality of transactions into one or more groups of transactions based on one or more accounts affected by executing the first-type transaction for each first-type transaction and one or more accounts affected by pre-executing the second-type transaction for each second-type transaction;
• arranging, by the network node, each of the one or more groups of transactions that affect the one or more accounts by executing the first-type transactions into a first-type transaction group and each of the one or more groups of transactions that affect the one or more accounts by executing the second-type transactions into a second-type transaction group;
• arranging, by the network node, the first-type transaction group and the second-type transaction group in a parallel execution order so that the one or more accounts affected by each of the plurality of transactions in the first-type transaction group are not affected by the one or more accounts affected by each of the plurality of transactions in the second-type transaction group;
• and
• executing the plurality of transactions by executing, in parallel, the one or more groups of transactions.