v1.8.2

A critical bug was introduced in version 1.8.0 that made core module usable with nothing but local file system. All should be fixed with this bugfix release.

It was a simple code mistake caused by an improper usage of API of hadoop-client. In effect file:// schema was enforced when listing files on path when preparing Stats component. Moreover, in order to delay this premature file listing Stats component initialisation is now made lazy.