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Date: Sun, 5 May 2013 07:08:17 +0000 (UTC)
From: "Owen O'Malley (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <JIRA.12646049.1367615660868.270460.1367737697091@arcas>
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References: <JIRA.12646049.1367615660868@arcas>
Subject: [jira] [Updated] (HIVE-4494) ORC map columns get class cast
 exception in some context
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     [ https://issues.apache.org/jira/browse/HIVE-4494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Owen O'Malley updated HIVE-4494:
--------------------------------

    Status: Patch Available  (was: Open)
    
> ORC map columns get class cast exception in some context
> --------------------------------------------------------
>
>                 Key: HIVE-4494
>                 URL: https://issues.apache.org/jira/browse/HIVE-4494
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: HIVE-4494.D10653.1.patch
>
>
> Setting up the test case like:
> {quote}
> create table map_text (
>   name string,
>   m map<string,string>
> ) row format delimited
>     fields terminated by '|'
>     collection items terminated by ','
>     map keys terminated by ':';
> create table map_orc (
>   name string,
>   m map<string,string>
> ) stored as orc;
> cat map.txt
> name1|key11:value11,key12:value12,key13:value13
> name2|key21:value21,key22:value22,key23:value23
> name3|key31:value31,key32:value32,key33:value33
> load data local	inpath 'map.txt' into table map_text;
> insert overwrite table map_orc select * from map_text;
> {quote}
> Selecting the name column from orc_map will get the following exception:
> {quote}
> 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.MapTask.runOldMapper(MapTask.java:431)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:371)
> 	at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:396)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1195)
> 	at org.apache.hadoop.mapred.Child.main(Child.java:249)
> Caused by: java.lang.reflect.InvocationTargetException
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
> 	... 9 more
> Caused by: java.lang.RuntimeException: Error in configuring object
> 	at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
> 	at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
> 	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
> 	at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
> 	... 14 more
> Caused by: java.lang.reflect.InvocationTargetException
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
> 	... 17 more
> Caused by: java.lang.RuntimeException: Map operator initialization failed
> 	at org.apache.hadoop.hive.ql.exec.ExecMapper.configure(ExecMapper.java:121)
> 	... 22 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.ClassCastException: org.apache.hadoop.hive.ql.io.orc.OrcStruct$OrcMapObjectInspector cannot be cast to org.apache.hadoop.hive.serde2.objectinspector.SettableMapObjectInspector
> 	at org.apache.hadoop.hive.ql.exec.MapOperator.setChildren(MapOperator.java:522)
> 	at org.apache.hadoop.hive.ql.exec.ExecMapper.configure(ExecMapper.java:90)
> 	... 22 more
> Caused by: java.lang.ClassCastException: org.apache.hadoop.hive.ql.io.orc.OrcStruct$OrcMapObjectInspector cannot be cast to org.apache.hadoop.hive.serde2.objectinspector.SettableMapObjectInspector
> 	at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters.getConverter(ObjectInspectorConverters.java:144)
> 	at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$StructConverter.<init>(ObjectInspectorConverters.java:307)
> 	at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters.getConverter(ObjectInspectorConverters.java:138)
> 	at org.apache.hadoop.hive.ql.exec.MapOperator.initObjectInspector(MapOperator.java:270)
> 	at org.apache.hadoop.hive.ql.exec.MapOperator.setChildren(MapOperator.java:482)
> 	... 23 more
> {quote}

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