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https://issues.apache.org/jira/browse/HIVE-322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680368#action_12680368
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Joydeep Sen Sarma commented on HIVE-322:
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for the thrift server mode - where does the jar file sit? if it is available
on the client side - doesn't it need to be transferred to the server side via
the Thrift interface?
the set commands are also not available through the Thrift server - and i agree
that all of these should be accessible via the Thrift interface (ignoring the
file location issue). I think it should be fairly easy to refactor Thrift
server and Driver/CliDriver code to make sure that all commands are supported
on the ThriftServer (and don't think that we need to bring all the cli commands
into the Hive grammar for that to happen).
let's open another jira for this issue (executing cli commands into thrift
server) - it should be fairly easy to get in. if u can add the 'add jar'
command to the cli in the meantime - we should be good to go. I looked at the
patch and the main code looks good.
> 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
> Attachments: registerjars-v3.patch, registerjars1.patch,
> registerjars2.patch
>
>
> 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.
> CREATE TEMPORARY FUNCTION strlen AS 'hadoop.hive.udf.UdfStringLength'
> I'll make a patch soon.
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