Just and update:   I was able to replicate the entire issue in our dev cluster.    I installed parcels on the v4.3.0 dev cluster.  Retested Pig and the illustrate command worked. Upgraded parcels to 4.6.0 (latest)  Pig illustrate does not work. Downgraded to v4.5.0  Pig illustrate works.   I'm actually starting to do diffs between the 2 Pig code bases to see if I can see the change.   I don't know how I could tell if there is a general config change but it is looking like this is isolated to the v4.6.0 Pig distro.     Thanks for your help. ... View more