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From "liyunzhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-18148) NPE in SparkDynamicPartitionPruningResolver
Date Wed, 13 Dec 2017 08:15:05 GMT

    [ https://issues.apache.org/jira/browse/HIVE-18148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16288864#comment-16288864
] 

liyunzhang commented on HIVE-18148:
-----------------------------------

{quote}
you can just run the new test with master branch and it should fail 
{quote}
the new unit test is executed with map join because {{hive.auto.convert.join.noconditionaltask}}
is true by default. If my understanding is wrong, tell me.

> NPE in SparkDynamicPartitionPruningResolver
> -------------------------------------------
>
>                 Key: HIVE-18148
>                 URL: https://issues.apache.org/jira/browse/HIVE-18148
>             Project: Hive
>          Issue Type: Bug
>          Components: Spark
>            Reporter: Rui Li
>            Assignee: Rui Li
>         Attachments: HIVE-18148.1.patch
>
>
> The stack trace is:
> {noformat}
> 2017-11-27T10:32:38,752 ERROR [e6c8aab5-ddd2-461d-b185-a7597c3e7519 main] ql.Driver:
FAILED: NullPointerException null
> java.lang.NullPointerException
>         at org.apache.hadoop.hive.ql.optimizer.physical.SparkDynamicPartitionPruningResolver$SparkDynamicPartitionPruningDispatcher.dispatch(SparkDynamicPartitionPruningResolver.java:100)
>         at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.dispatch(TaskGraphWalker.java:111)
>         at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.walk(TaskGraphWalker.java:180)
>         at org.apache.hadoop.hive.ql.lib.TaskGraphWalker.startWalking(TaskGraphWalker.java:125)
>         at org.apache.hadoop.hive.ql.optimizer.physical.SparkDynamicPartitionPruningResolver.resolve(SparkDynamicPartitionPruningResolver.java:74)
>         at org.apache.hadoop.hive.ql.parse.spark.SparkCompiler.optimizeTaskPlan(SparkCompiler.java:568)
> {noformat}
> At this stage, there shouldn't be a DPP sink whose target map work is null. The root
cause seems to be a malformed operator tree generated by SplitOpTreeForDPP.



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