You have to use something like FUSE to mount HDFS, if that is your intention. It's not really like Ceph. Unless your app is written to use the HDFS API directly

You have to use something like FUSE to mount HDFS, if that is your intention. It's not really like Ceph. Unless your app is written to use the HDFS API directly it's going to be a bigger rigmarole to store stuff.