Some issues with RB and the comments I gave yest wasn't published. Still not able to. So giving it here.
1) PathFilter getDefaultPathFilter
Just to know, is it the _SUCCESS files that you are trying to filter out? If so can the method be renamed to getSuccessMarkerPathFilter?
Also can we add the method to org.apache.pig.test.Util in test package instead of this class?
2) properties.setProperty(PigConfiguration.TEZ_SESSION_REUSE, "false");
Why don't we set this in MiniCluster m_conf itself. Once we fix the original issue, then it will just be one place that needs to be fixed.
Combiner has gone missing. We need to fix this instead of changing golden file. Can you leave this file as is?
4) Other split related files
These ones be left as is till
PIG-3757 is fully done. The filter should not be there and the alias names also have gone missing. We knew we were breaking this.