Fault processing method and device

The embodiment of the invention provides a fault processing method and device, and the method comprises the steps: transmitting a network address request to a server in a network file system, and receiving network addresses, fed back by the server, of a first protocol machine node and a second protocol machine node; establishing a first network connection with the first protocol machine node according to the network address of the first protocol machine node; detecting a connection state of the first network connection; and under the condition that the connection state of the first network connection is detected to be abnormal, switching the flow to a second network connection established with the second protocol machine node. The protocol machine nodes are determined according to the load information of the protocol machine nodes, load balance among the protocol machine nodes is ensured, the stability of the network file system is ensured, when the first network connection is abnormal, the second network con