Secure Load Rebalancing Algorithm for Distributed File Systems in Cloud

Distributed file systems are key technology for cloud computing applications. In such file system, each node having storage as well as computing functionalities. A file is partitioned into a number of chunks allocated in distinct nodes so that data processing can be performed in parallel. Specifically, in this study, we suggest offloading the load rebalancing task to storage nodes by having the storage nodes balance their loads spontaneously. This eliminates the dependence on central nodes. The storage nodes are organized as distributed hash tables forming a network. Discovering a file needs rapid key look up operation given that a unique handle is allocated to each file chunk. DHTs enable nodes to self-organize and repair while constantly offering lookup functionality in node dynamism, simplifying the system provision and management. We construct a sophisticated load rebalancing algorithm combined with AES encryption. The simulation result shows that our proposed scheme outperforms the existing distributed approach in terms of security parameters.