1. A computing system, comprising: a first file system comprising one or more storage nodes for storing data, and a first namespace metadata server configured to control and manage a first namespace of the first file system to access the data stored in the one or more storage nodes of the first file system; and a distributed file system, which is separate from the first file system, the distributed file system comprising a plurality of storage nodes for storing data, and a second namespace metadata server configured to control and manage a second namespace of the distributed file system to access the data stored in the plurality of storage nodes of the distributed file system; wherein the first file system further comprises a third namespace metadata server, which executes on one or more nodes of the first file system, and which is configured to control and manage the second namespace of the distributed file system by virtue of a namespace acquisition process in which the first file system acquires and assumes control of the second namespace of the distributed file system; wherein in conjunction with the acquisition of the second namespace of the distributed file system by the first file system, the first namespace of the first file system remains logically different from the second namespace of the distributed file system such that the first namespace cannot be utilized to access data stored in the plurality of storage nodes of the distributed file system, but wherein the first file system utilizes the third namespace metadata server and the acquired second namespace of the distributed file system to directly communicate with the plurality of storage nodes of the distributed file system and control data access operations to access data stored in the plurality of storage nodes of the distributed file system; wherein in conjunction with the acquisition of the second namespace of the distributed file system by the first file system, the third namespace metadata server of the first file system implements a functionality of the second namespace metadata server of the distributed file system, and the second namespace metadata server of the distributed file system ceases to execute on the distributed file system; wherein in conjunction with the acquisition of the second namespace of the distributed file system by the first file system, the acquired second namespace of the distributed file system remains unchanged and under control of the third namespace metadata server executing on the one or more nodes of the first file system; and wherein in conjunction with the acquisition of the second namespace of the distributed file system by the first file system, the first namespace of the first file system and the acquired second namespace of the distributed file system remain separate.