Github user shivzone commented on the issue:
https://github.com/apache/incubator-hawq/pull/1301
After some investigation, the webapp does have pxf-profiles-default.xml
file in pxf-service/webapps/pxf/WEB-INF/classes/ along with other configuration
files. @lavjain is right, we dont' need pxf-profiles-default.xml in conf/.---
