Owen O'Malley created HIVE-4494:
-----------------------------------
Summary: 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
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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