can HDFS be a streaming source like Kafka in Spark 2.2.0?

[kant kodali]

Hi All,

I am wondering if HDFS can be a streaming source like Kafka in Spark 2.2.0?
For example can I have stream1 reading from Kafka and writing to HDFS and
stream2 to read from HDFS and write it back to Kakfa ? such that stream2
will be pulling the latest updates written by stream1.

Thanks!