After running the PDI installer from 10/16 and starting up in Instaview, I created a CSV Input pointing at "customers-100.txt" from the samples directory. When the ETL-Model-Data Cache procedure ran, I got an error saying "Unable to connect (localhost:50000): Connection refused. See screenshot above for full error.
I did a "ps -aef | grep monet" and it appears that the monetdb server was for some reason created on port 50006, not 50000, this may be the cause of the problem. Also I have two entries in my hosts file for 127.0.0.1, one for localhost and one for my hostname. This shouldn't matter but I mention it just in case. I tried to comment out the hostname one but that made no difference.