The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2021
Filed:
Jan. 31, 2020
Advanced New Technologies Co., Ltd., Grand Cayman, KY;
Peng Lin, Hangzhou, CN;
Advanced New Technologies Co., Ltd., Grand Cayman, KY;
Abstract
Implementations of this specification provide a method and an apparatus for changing a master node in a blockchain system. An example method performed by a backup node in the blockchain system includes determining that an epoch change is to occur in a blockchain system, generating a random number, and in response to determining that the random number satisfies an epoch change trigger condition, sending an epoch change request message to multiple network nodes other than the backup node in the blockchain system. The backup node receives a request acknowledgement message from at least one of the multiple network nodes, the request acknowledgement message indicating that the backup node is to serve as the new master node, and in response to receiving a number of request acknowledgement messages that is greater than a predetermined number of messages, the backup node sends an epoch change acknowledgement message to the multiple network nodes.