refix to allow jujubigdata to validate live datanodes
refix to allow jujubigdata to validate live datanodes

tsakas/jujubigdata,ktsakalozos/jujubigdata,juju-solutions/jujubigdata,ktsakalozos/jujubigdata,andrewdmcleod/jujubigdata,andrewdmcleod/jujubigdata,johnsca/jujubigdata,juju-solutions/jujubigdata,ktsakalozos/jujubigdata-dev,ktsakalozos/jujubigdata-dev,tsakas/jujubigdata,johnsca/jujubigdata