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https://issues.apache.org/jira/browse/HIVE-4804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13701742#comment-13701742
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Edward Capriolo commented on HIVE-4804:
---------------------------------------
That seems fine. Hive already has sort by, I can not see a reason why we would
need order by on anything but the final result.
> parallel order by fails for small datasets
> ------------------------------------------
>
> Key: HIVE-4804
> URL: https://issues.apache.org/jira/browse/HIVE-4804
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Fix For: 0.12.0
>
> Attachments: HIVE-4804.D11571.1.patch
>
>
> {noformat}
> 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$OldOutputCollector.<init>(MapTask.java:481)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:390)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:324)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:266)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:416)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1278)
> at org.apache.hadoop.mapred.Child.main(Child.java:260)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:616)
> at
> org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
> ... 10 more
> Caused by: java.lang.IllegalArgumentException: Can't read partitions file
> at
> org.apache.hadoop.mapred.lib.TotalOrderPartitioner.configure(TotalOrderPartitioner.java:91)
> at
> org.apache.hadoop.hive.ql.exec.HiveTotalOrderPartitioner.configure(HiveTotalOrderPartitioner.java:37)
> ... 15 more
> Caused by: java.io.IOException: Split points are out of order
> at
> org.apache.hadoop.mapred.lib.TotalOrderPartitioner.configure(TotalOrderPartitioner.java:78)
> ... 16 more
> {noformat}
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