Network connection establishment method and system and network cluster

The invention relates to the technical field of distributed storage, and discloses a network connection establishment method and system and a network cluster, and the method comprises the steps: obtaining the current network states of a first node and a second node in a target cluster; determining an initial network connection mode based on the current network states of the first node and the second node; sending the initial network connection mode to the second node; the initial network connection mode is used for the second node to determine a current network connection mode based on configuration information of the second node; and initializing the network connection based on the current network connection mode sent by the second node so as to establish the network connection between the first node and the second node. Therefore, the network connection mode between the two nodes can be selected according to the current network state of the node, and the number of processes in the cluster is reduced on the