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From "Ashutosh Chauhan (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2508) Join on union type fails
Date Tue, 18 Oct 2011 10:10:11 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129635#comment-13129635
] 

Ashutosh Chauhan commented on HIVE-2508:
----------------------------------------

NPE is thrown in setup task of Reducer:
{code}
java.lang.RuntimeException: Error in configuring object
	at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
	at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
	at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:484)
	at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:419)
	at org.apache.hadoop.mapred.Child$4.run(Child.java:259)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
	at org.apache.hadoop.mapred.Child.main(Child.java:253)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
	... 9 more
Caused by: java.lang.RuntimeException: Reduce operator initialization failed
	at org.apache.hadoop.hive.ql.exec.ExecReducer.configure(ExecReducer.java:157)
	... 14 more
Caused by: java.lang.NullPointerException
	at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.getStandardObjectInspector(ObjectInspectorUtils.java:105)
	at org.apache.hadoop.hive.ql.exec.JoinUtil.getStandardObjectInspectors(JoinUtil.java:97)
	at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.initializeOp(CommonJoinOperator.java:255)
	at org.apache.hadoop.hive.ql.exec.JoinOperator.initializeOp(JoinOperator.java:59)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:357)
	at org.apache.hadoop.hive.ql.exec.ExecReducer.configure(ExecReducer.java:150)
	... 14 more
{code}
                
> Join on union type fails
> ------------------------
>
>                 Key: HIVE-2508
>                 URL: https://issues.apache.org/jira/browse/HIVE-2508
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Ashutosh Chauhan
>
> {code}
> hive> CREATE TABLE DEST1(key UNIONTYPE<STRING, STRING>, value BIGINT) STORED
AS TEXTFILE;
> OK
> Time taken: 0.076 seconds
> hive> CREATE TABLE DEST2(key UNIONTYPE<STRING, STRING>, value BIGINT) STORED
AS TEXTFILE;
> OK
> Time taken: 0.034 seconds
> hive> SELECT * FROM DEST1 JOIN DEST2 on (DEST1.key = DEST2.key);
> {code}

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