Distributed Metaserver Mechanism and Recovery Mechanism Support in Quantcast File System

With the need of data storage increases tremendously nowadays, distributed file system becomes the most important data storage system in cloud computing. In distributed file system development, there are many researchers work hard to refine the architecture to provide scalability and reliability. In our work, we propose a distributed metaserver system including metaserver scale-out, metadata replication, metaserver recovery, and metaserver management recovery mechanisms. In our experiments, the proposed system can increase the capacity of metadata and increase the reliability by fault tolerance mechanism. The overhead of read/write data is very little in the proposed system as well.