How to use alluxio as storage("distributed path") instead of hdfs

Hey all,
I used HDFS as the storage of Dremio before, Now we try to connect Dremio to Alluxio cluster (HDFS as Alluxio’s under storage system), but we found that there is no support for “alluxio://” protocol (in dremio.conf) in the existing documents. How can I do this?

@meiosischen Has to be HDFS, does Alluxio provide a way to map it as a HDFS file scheme?