DHT Cluster Node Join Improvement and Load Balancing

With the development of blockchain technology, people pay more and more attention to DHT based blockchain technology. Chord, as a topology of DHT, is often used in the storage structure of nodes. When multiple nodes join the same location of chord ring at the same time, there will be conflicts and delays, and there are duplicate items in the finger table of some nodes in chord ring; In order to solve the conflict of multi node joining, chord is added in the form of multi node inscribed ring, and the duplicate item of finger is modified to reduce the redundancy of node table. On the other hand, in order to independently verify the correctness of new transactions, full nodes need to be operated, which requires limited storage capacity for many devices with small resources. The existing lightweight node scheme also relies on other full nodes; The chord ring cluster scheme is proposed to balance the storage load of DHT cluster nodes. The results show that the conflict frequency of multi node joining is further reduced, the storage capacity utilization of finger table is improved, and the storage capacity between lightweight nodes is reduced.