[HADOOP-6453] Hadoop wrapper script shouldn't ignore an existing JAVA_LIBRARY_PATH

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.20.2, 0.21.0, 0.22.0
• Fix Version/s: 0.22.1
• Component/s: scripts
• Target Version/s: 0.22.0
• Hadoop Flags: Incompatible change, Reviewed
• Assignee: Unassigned
• Reporter: Chad Metcalf
• Created: 17/Dec/09 21:52
• Updated: 08/Oct/15 22:28
• Resolved: 20/Nov/12 21:44

Description

Currently the hadoop wrapper script assumes its the only place that uses JAVA_LIBRARY_PATH and initializes it to a blank line.

JAVA_LIBRARY_PATH=''

This prevents anyone from setting this outside of the hadoop wrapper (say hadoop-config.sh) for their own native libraries.

The fix is pretty simple. Don't initialize it to '' and append the native libs like normal.

Issue Links

• is related to: HADOOP-7825 Hadoop wrapper script not picking up native libs correctly
• relates to: HADOOP-12467 Respect user-defined JAVA_LIBRARY_PATH in Windows Hadoop scripts