Difference between spaceConsumed vs length parameters in getContentSummary using webHDFS REST API

[#1]

According to the following doc, spaceConsumed refers to the "The disk space consumed by the content." and length refers to "The number of bytes used by the content."

https://hadoop.apache.org/docs/r1.0.4/webhdfs.html#ContentSummary

What would be the real difference here in terms of space taken from HDFS?

Consider that most of time, if not always, spaceConsumed has a lot larger value then length. What does spaceConsumed consider that length does not?

[#2 · Accepted solution]

spaceConsumed = length * replicationFactor