[OOZIE-2978] Remove code that handles Pig versions before 0.8

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0b1
• Assignee: Attila Sasvári
• Reporter: Attila Sasvári
• Created: 04/Jul/17 08:30
• Updated: 25/Jan/18 21:01
• Resolved: 11/Oct/17 12:16

Description

Oozie submits Pig jobs according to given Pig version. For example, Pig versions before 0.8 are treated in the following way:
Main.main(args)

However, we dropped support for Hadoop 1, Hadoop 0.23 support via OOZIE-2316. I wonder whether submitting jobs using Pig version before 0.8 will work at all:

• https://pig.apache.org/releases.html#13+May%2C+2010%3A+release+0.7.0+available says "This release works with Hadoop 0.20". Pig 0.10.1 is the first pig release that works with Hadoop 2.
• Looking at PIG-2125, I believe the answer is NO.

Therefore we can safely delete corresponding parts from the codebase. There is also another class PigMainWithOldAPI that is only used by tests in TestPigMainWithOldAPI. So we can remove these too.

Issue Links

• is related to: OOZIE-2918 Delete LauncherMapper and its test