HBASE-25050 - We initialize Filesystems more than once. (#2419)

* HBASE-25050 - We initialize Filesystems more than once.

* Ensuring that calling the FS#get() will only ensure FS init.

* Fix for testfailures. We should pass the entire path and no the scheme
alone

* Cases where we don't have a scheme for the URI

* Address review comments

* Add some comments on why FS#get(URI, conf) is getting used

* Adding the comment as per Sean's review

Signed-off-by: Sean Busbey <busbey@apache.org>
Signed-off-by: Michael Stack <stack@apache.org>
4 files changed