[HIVE-15531] Hive breaks Hadoop commons logging with log4j2

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 2.1.0
• Assignee: Dhiraj Kumar
• Reporter: Dhiraj Kumar
• Created: 03/Jan/17 12:44
• Updated: 18/Jan/17 01:03
• Resolved: 18/Jan/17 01:03

Description

Hadoop (2.7), which is using Commons-logging is not compatible with log4j2 without bridge.

The bridge is missing in Hive.

This leads to a problem whereby commons-logging initialises a log4j (1.2) version Logger, does not configure it properly since configuration for it is missing and sends logging output to stdout (the default).