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From "Rui Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10816) NPE in ExecDriver::handleSampling when submitted via child JVM
Date Thu, 04 Jun 2015 02:29:37 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14571995#comment-14571995
] 

Rui Li commented on HIVE-10816:
-------------------------------

Hi [~navis], would you mind take a look at this when you got time?

> NPE in ExecDriver::handleSampling when submitted via child JVM
> --------------------------------------------------------------
>
>                 Key: HIVE-10816
>                 URL: https://issues.apache.org/jira/browse/HIVE-10816
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Rui Li
>            Assignee: Rui Li
>         Attachments: HIVE-10816.1.patch, HIVE-10816.1.patch
>
>
> When {{hive.exec.submitviachild = true}}, parallel order by fails with NPE and falls
back to single-reducer mode. Stack trace:
> {noformat}
> 2015-05-25 08:41:04,446 ERROR [main]: mr.ExecDriver (ExecDriver.java:execute(386)) -
Sampling error
> java.lang.NullPointerException
>         at org.apache.hadoop.hive.ql.exec.mr.ExecDriver.handleSampling(ExecDriver.java:513)
>         at org.apache.hadoop.hive.ql.exec.mr.ExecDriver.execute(ExecDriver.java:379)
>         at org.apache.hadoop.hive.ql.exec.mr.ExecDriver.main(ExecDriver.java:750)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:497)
>         at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
> {noformat}



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