HADOOP-12636 catches exceptions on FS creation, but prints a stack trace @ warn every time..this is noisy and irrelevant if the installation doesn't need connectivity to a specific filesystem or object store.
I propose: only printing the toString values of the exception chain @ warn; the full stack comes out at debug.
We could some more tuning:
- have a specific log for this exception, which allows installations to turn even the warnings off.
- add a link to a wiki page listing the dependencies of the shipped filesystems