[HADOOP-9625] HADOOP_OPTS not picked up by hadoop command

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 2.0.4-alpha
• Fix Version/s: 2.1.0-beta
• Component/s: bin, conf
• Target Version/s: 2.0.5-alpha
• Assignee: Paul Han
• Reporter: Paul Han
• Created: 06/Jun/13 00:17
• Updated: 14/Mar/14 15:53
• Resolved: 11/Jun/13 21:18

Description

When migrating from hadoop 1 to hadoop 2, one thing caused our users grief are those non-backward-compatible changes. This JIRA is to fix one of those changes:
HADOOP_OPTS is not picked up any more by hadoop command

With Hadoop 1, HADOOP_OPTS will be picked up by hadoop command. With Hadoop 2, HADOOP_OPTS will be overwritten by the line in conf/hadoop_env.sh :

export HADOOP_OPTS="-Djava.net.preferIPv4Stack=true"

We should fix this.