[HADOOP-8806] libhadoop.so: dlopen should be better at locating libsnappy.so, etc.

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.0.3-alpha
• Component/s: build
• Hadoop Flags: Reviewed
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 14/Sep/12 02:27
• Updated: 15/Feb/13 17:12
• Resolved: 17/Sep/12 23:31

Description

libhadoop calls dlopen to load libsnappy.so and libz.so. These libraries can be bundled in the $HADOOP_ROOT/lib/native directory. For example, the -Dbundle.snappy build option copies libsnappy.so to this directory. However, snappy can't be loaded from this directory unless LD_LIBRARY_PATH is set to include this directory.

Can we make this configuration "just work" without needing to rely on LD_LIBRARY_PATH?

Issue Links

• relates to: FLUME-1582 flume-ng script should set LD_LIBRARY_PATH
• relates to: HADOOP-8756 Fix SEGV when libsnappy is in java.library.path but not LD_LIBRARY_PATH