Hao Liu

Title: Hao Liu - Innovator in Database Systems

Introduction

Hao Liu is an inventor based in Hangzhou, China. He has made significant contributions to the field of database systems. Although he currently holds no granted patents, his work in developing innovative technologies is noteworthy. He has worked with companies such as Hangzhou Hikrobot Co., Ltd. and Advanced New Technologies Co., Ltd. His collaboration with fellow innovator Shuai Shao has further enriched his experience in the industry.

Latest Patent Applications

Hao Liu's latest patent applications include:

1. **Database System, and Primary Database Election Methods and Apparatuses** - This specification provides a database system, and primary database election methods and apparatuses. The system includes at least one auxiliary node and a plurality of clusters. If any cluster is a primary database of the first table and the other clusters are standby databases, the primary database applies to all auxiliary nodes and all clusters for extension of a term of the primary database during the current term. If the primary database obtains more than half of approval votes before the current term ends, the primary database determines that the term of the primary database is successfully extended. Otherwise, the primary database downgrades itself to a standby database. The auxiliary node and/or the clusters that don't record the primary database of the first table in term initiate a distributed election, and elect a cluster that obtains more than half of approval votes as a new primary database.

2. **Node Election Methods and Apparatuses, Storage Media, and Electronic Devices** - This specification discloses node election methods and apparatuses, storage media, and electronic devices. First, a target node device determines status information of all node devices when detecting that a master node device in a current term meets a predetermined resignation condition. Then, a candidate node device is determined from all the node devices based on the status information of all the node devices. A voting request is broadcast to other node devices if it is determined that the candidate node device is the target node device. Broadcasting the voting request is skipped if it is determined that the candidate node device is another node device. Voting is performed for the another node device based on the determined candidate node device when a voting request that is broadcast by the another node device is received.

Conclusion

Hao Liu is an innovative thinker in the realm of database systems, with promising applications that could shape the future of technology. His