cannot create temporary udf dynamically, with a ClassNotFoundException
-----------------------------------------------------------------------
Key: HIVE-322
URL: https://issues.apache.org/jira/browse/HIVE-322
Project: Hadoop Hive
Issue Type: Bug
Components: Query Processor
Affects Versions: 0.3.0
Reporter: Min Zhou
Priority: Blocker
CREATE TEMPORARY FUNCTION strlen AS 'com.taobao.hadoop.hive.udf.UdfStringLength'
I found the ClassLoader cannot load my UDF when doing FunctionTask, because the
ClassLoader hasnot append its classpaths on-the-fly yet.
The ExecDriver' s addToClassPath(String[] newPaths) method is the only entry
for ClassLoader dynamically append its classhpaths (besides hadoop's
GenericOptionsParser).
But that function wasnot called before FunctionTask getting my UDF class by
class name. I think this is the reason why I came across that failure.
scenario description:
I set a peroperty in hive-site.xml to configure the classpath of my udf.
<property>
<name>hive.aux.jars.path</name>
<value>/home/hadoop/hdpsoft/hive-auxs/zhoumin.jar</value>
</property>
but failed to register it with a ClassNotFoundException when creating udf
through the sql command.
I'll patch that soon.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
