In response to this situation, this paper proposes a Hadoop-based medical big data processing system. 
Hadoop
The system first realized the ETL module based on Sqoop and the transmission function of unstructured data and then realized the distributed storage management function based on HDFS. 
Sqoop
The system first realized the ETL module based on Sqoop and the transmission function of unstructured data and then realized the distributed storage management function based on HDFS. 
HDFS
Finally, a MapReduce algorithm with variable key values is proposed in the data statistical analysis module. 
MapReduce