[HADOOP-11013] CLASSPATH handling should be consolidated, debuggable

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha1
• Assignee: Allen Wittenauer
• Reporter: Allen Wittenauer
• Created: 27/Aug/14 22:53
• Updated: 12/May/16 18:22
• Resolved: 28/Aug/14 17:36

Description

As part of HADOOP-9902, java execution across many different shell bits were consolidated down to (effectively) two routines. Prior to calling those two routines, the CLASSPATH is exported. This export should really be getting handled in the exec function and not in the individual shell bits.

Additionally, it would be good if there was:

echo ${CLASSPATH} > /dev/null

so that bash x would show the content of the classpath or even a '-debug classpath' option that would echo the classpath to the screen prior to java exec to help with debugging.

Issue Links

• duplicates: HADOOP-8938 add option to do better diags of startup configuration
• is related to: HADOOP-11010 Post-9902 "Umbrella" JIRA