Blockchain consensus method and device
View Patent ↗This specification describes techniques for performing blockchain consensus. An example method performed by a first node in a blockchain includes: receiving first service data; determining a corresponding handling time of the first service data; storing the first service data including the corresponding handling time at a cache, in which the cache stores multiple pieces of additional service data, and in which each piece of additional service data is associated with a respective handling time; determining whether a consensus needs to be performed on at least two pieces of service data; in response to determining that the consensus needs to be performed, selecting the at least two pieces of service data according to a sequence that is based on handling times associated with the at least two pieces of service data; and performing the consensus on the more than one pieces of service data according to the sequence.
1. A blockchain consensus method, comprising:
receiving, by a node in a blockchain, first service data;
determining a handling time of the first service data;
storing, by the node, the first service data that comprises the handling time;
in response to determining that service data consensus needs to be performed, selecting, by the node based on the handling time, a plurality of pieces of service data on which consensus is to be performed;
determining a block capacity of a new block of a blockchain based on a consensus mechanism of the blockchain;
computing a digest of each of the plurality of pieces of service data;
selecting particular service data from the plurality of pieces of service data on which consensus is to be performed, wherein an occupation space of the particular service data and a digest of the particular service data satisfies the block capacity of the new block in which the particular service data and the digest are to be stored; and
performing consensus on the selected particular service data on which consensus is to be performed.
2. The method according to claim 1 , wherein determining the handling time of the first service data comprises:
determining a time at which the first service data is received, and determining the time as the handling time of the first service data; or
processing the first service data at a time at which the first service data is received, to obtain a processing result, and determining a generation time of the processing result as the handling time of the first service data.
3. The method according to claim 1 , wherein the method further comprises, after determining the handling time of the first service data:
broadcasting the first service data that comprises the handling time to another node in the blockchain.
4. The method according to claim 1 , wherein receiving, by the node in the blockchain, the first service data and determining the handling time of the first service data comprises:
receiving, by the node in a broadcast way, the first service data sent by another node in the blockchain; and
determining, by the node, a handling time comprised in the first service data as the handling time of the first service data.
5. The method according to claim 1 , wherein selecting, by the node based on the handling time, a plurality of pieces of service data on which consensus is to be performed comprises:
selecting, based on a time sequence of handling times, the plurality of pieces of service data on which consensus is to be performed.
6. A blockchain consensus apparatus, comprising:
one or more processors; and
one or more computer-readable memories coupled to the one or more processors and having instructions stored thereon that are executable by the one or more processors to perform operations comprising:
receiving first service data;
determining a handling time of the first service data;
storing the first service data that comprises the handling time;
selecting, based on the handling time in response to determining that service data consensus needs to be performed, a plurality of pieces of service data on which consensus is to be performed;
determining a block capacity of a new block of a blockchain based on a consensus mechanism of the blockchain;
computing a digest of each of the plurality of pieces of service data;
selecting particular service data from the plurality of pieces of service data on which consensus is to be performed, wherein an occupation space of the particular service data and a digest of the particular service data satisfies the block capacity of the new block in which the particular service data and the digest are to be stored; and
performing consensus on the selected particular service data on which consensus is to be performed.
7. The apparatus according to claim 6 , wherein determining the handling time of the first service data comprises:
determining a time at which the first service data is received, and determining the time as the handling time of the first service data; or
processing the first service data at a time at which the first service data is received, to obtain a processing result, and determining a generation time of the processing result as the handling time of the first service data.
8. The apparatus according to claim 6 , wherein the operations further comprises:
broadcasting the first service data that comprises the handling time to another node in a blockchain after the handling time of the first service data is determined.
9. The apparatus according to claim 6 , wherein receiving the first service data and determining the handling time of the first service data comprises:
receiving, in a broadcast way, the first service data sent by another node in a blockchain; and
determining a handling time comprised in the first service data as the handling time of the first service data.
10. The apparatus according to claim 6 , wherein selecting, based on the handling time, the plurality of pieces of service data on which consensus is to be performed, comprising:
selecting, based on a time sequence of handling times, the plurality of pieces of service data on which consensus is to be performed.