cyril liao created HIVE-5124:
--------------------------------
Summary: group by without map aggregation lead to mapreduce
exception
Key: HIVE-5124
URL: https://issues.apache.org/jira/browse/HIVE-5124
Project: Hive
Issue Type: Bug
Components: Query Processor
Affects Versions: 0.11.0
Reporter: cyril liao
On my environment, the same query but diffent by seting hive.map.aggr with true
or flase,produce different result.
With hive.map.aggr=false,tasktracker report the following exception:
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:485)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:420)
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:1083)
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: Reduce operator initialization failed
at
org.apache.hadoop.hive.ql.exec.ExecReducer.configure(ExecReducer.java:160)
... 14 more
Caused by: java.lang.RuntimeException: cannot find field value from [0:_col0,
1:_col1, 2:_col2, 3:_col3]
at
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.getStandardStructFieldRef(ObjectInspectorUtils.java:366)
at
org.apache.hadoop.hive.serde2.objectinspector.StandardStructObjectInspector.getStructFieldRef(StandardStructObjectInspector.java:143)
at
org.apache.hadoop.hive.ql.exec.ExprNodeColumnEvaluator.initialize(ExprNodeColumnEvaluator.java:82)
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.initializeOp(GroupByOperator.java:299)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:375)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:451)
at
org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:407)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:62)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:375)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:451)
at
org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:407)
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.initializeOp(GroupByOperator.java:438)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:375)
at
org.apache.hadoop.hive.ql.exec.ExecReducer.configure(ExecReducer.java:153)
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
