[HADOOP-14781] Clarify that HADOOP_CONF_DIR shouldn't actually be set in hadoop-env.sh

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-beta1
• Fix Version/s: 3.0.0-beta1
• Component/s: documentation, scripts
• Target Version/s: 3.0.0-beta1
• Assignee: Allen Wittenauer
• Reporter: Allen Wittenauer
• Created: 17/Aug/17 02:41
• Updated: 01/Sep/17 17:37
• Resolved: 01/Sep/17 04:11

Description

We should be more explicit in the documentation in hadoop-env.sh that HADOOP_CONF_DIR:

• shouldn't actually be set in this file
• is really intended for something "outside" of this file to set
• will break --config if the pointed to configs don't also set HADOOP_CONF_DIR appropriately