[IMPALA-3983] Clean up UDF jars after reloading functions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.5.0
• Fix Version/s: Impala 2.8.0
• Component/s: Catalog
• Labels: supportability
• Target Version: Impala 2.8.0
• Assignee: Bharath Vissapragada
• Reporter: Balazs Jeszenszky
• Created: 16/Aug/16 20:07
• Updated: 07/Nov/16 19:09
• Resolved: 04/Nov/16 00:34

Description

As per IMPALA-2843, we copy the UDF jars to a local temp directory. Upon reloading the functions (e.g. catalog restart) we should clean up the old files.

Issue Links

• duplicates: IMPALA-3974 IMPALA-2843 should consider using local_library_dir instead of java.io.tmpdir