The embodiment of the present invention proposes a method, device and
system for
processing a data operation request, which can support
mass data. The method can comprise: a management node receiving an FTP (
File Transfer Protocol) data operation request sent by a
client, wherein the FTP data operation request comprises the
directory path information of the data; searching a corresponding
directory and
directory attribute information corresponding to the directory according to the directory path information; judging whether the directory corresponding to the directory path information is a mapped directory or not, wherein the directory attribute information comprises whether the directory is mapped to a
data node or not and the routing information of the mapped
data node, the directory mapped to the
data node is the mapped directory; and if the directory is the mapped directory, sending a redirection message to the
client, wherein the redirection message comprises the routing information of the mapped data node so that the
client sends the corresponding FTP data operation request to the data node according to the routing information.