Affects Version/s: None
Fix Version/s: 0.19.0
Hadoop Flags:Incompatible change, Reviewed
Release Note:Improved space reporting for NameNode Web UI. Applications that parse the Web UI output should be reviewed.
In one example:
Capacity : 1.15 PB
DFS Remaining : 192 TB
DFS Used : 717 TB
DFS Used% : 62 %
Why is Capacity not equal Used plus Remaining?
(The answer is that there is an estimated reserve for local files.)
The presentation should be easily understood by the user.