Github user parthchandra commented on the issue:
https://github.com/apache/drill/pull/1050
Changed the type of allowAccessOutsideWorkspace to boolean. This changes
behavior. All existing dfs workspaces will also disallow access outside the
workspace. Ideally, we should deprecate this parameter in a future release, but
for the moment it allows existing users to access paths outside the workspace
if they want to.---
