1. A method performed by a name node in a distributed cluster comprising a plurality of name nodes and a plurality of data nodes and having a distributed file system, comprising: assuming an active role after a failover; receiving data reports from data nodes from the plurality of data nodes; and sending a data deletion command to a data node from the data nodes after receiving the data reports from each of the data nodes; wherein each of the plurality of name nodes obtains information regarding location of replicated data stored in the data nodes from the data reports received from the data nodes.