[HIVE-11663] Auto load/unload custom udf function for hive cli and hiveserver2

• Type: Improvement
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.14.0, 1.0.0, 1.0.1, 1.1.1, 1.2.1
• Component/s: CLI, Configuration
• Labels: features patch
• Hadoop Flags: Reviewed
• Release Note: Auto load/unload custom udf function for hive cli and hiveserver2
• Flags: Patch
• Assignee: liuzongquan
• Reporter: liuzongquan
• Due: 27/Aug/15
• Created: 27/Aug/15 03:29
• Updated: 25/Sep/15 18:41

Description

when adding custom functions used in hiveserver2, the most method is re-build the hive source code, re-dist and restart hiveserver2. This way will produce big cost for service user and cluster manager. The best way, in my opinion, the custom udf should be like a plugin to the hiveserver2 and hive cli, and users can add and remove at run-time, especially for hiveserver2.