As the era of big data coming,it has been a trend that distributed file systems supports Hadoop to access big data.This paper designed and implemented a p NFS framework for accessing big data with Hadoop. The framework added a p NFS shim layer module between Hadoop and p NFS,and then implemented the HDFS APIs. In addition,it added write cache and the node data layout aware mechanism to optimize the performance of the system. This paper used Hadoop benchmarks to test the designed p NFS framework. The results...