HBASE-26437 Clean up the znodes for the src after a rename.

HBOSS was orphaning znodes from the src of a path which is renamed. Over
time, this will result in a very large usage of ZK due to HBOSS.

Add some logging to dump the contents of ZK

Signed-off-by: Wellington Chevreuil <wchevreuil@apache.org>

Closes #29
7 files changed