[HIVE-3241] GenericUDAF when packaged as a JAR raises IllegalAccessException unless the JAR is placed in lib dir

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.9.0
• Component/s: UDF
• Assignee: Unassigned
• Reporter: Shreepadma Venugopalan
• Created: 06/Jul/12 21:51
• Updated: 09/Apr/15 20:32

Description

GenericUDAFEvaluator has a member variable "Mode" which is protected. Accessing mode in a GenericUDAF class raises IllegalAccessException when packaged as a jar. This looks like a class loader issue because the error doesn't occur when the jar is placed in HIVE_LIB directory. The fix for this issue is to provide public getters for member variable mode in GenericUDAFEvaluator.

Steps to reproduce,

Copy the attached jar to a dir other than HIVE_LIB

On a hive shell,

add jar <path-to-jar>

create temporary function compute_stats as 'org.apache.hadoop.hive.ql.udf.generic.GenericUDAFComputeStats';

select compute_stats(some_col) from some_table;

Issue Links

• links to: https://reviews.apache.org/r/32988/