The present application discloses a method and device for scheduling a distributed file system. A specific implementation of the method comprises: creating a new session based on a received session request from a user terminal; sending a first locking request to a manager of the distributed file system, the first locking request used for requesting locking a lease directory; sending a request for creating a new subdirectory in the lease directory to the manager in response to receiving a response of successful locking to the first locking request, the new subdirectory being named using an IP address and a port of the new session; and designating the new session as a primary session in response to receiving a response of successful new creation to the request for creating the new subdirectory.