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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12947) SMB join in tez has ClassCastException when container reuse is on
Date Wed, 27 Jan 2016 23:11:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15120368#comment-15120368
] 

Sergey Shelukhin commented on HIVE-12947:
-----------------------------------------

Can you elaborate on the root cause? As such, the patch looks good, +1 pending tests

> SMB join in tez has ClassCastException when container reuse is on
> -----------------------------------------------------------------
>
>                 Key: HIVE-12947
>                 URL: https://issues.apache.org/jira/browse/HIVE-12947
>             Project: Hive
>          Issue Type: Bug
>          Components: Tez
>    Affects Versions: 2.0.0
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>            Priority: Critical
>         Attachments: HIVE-12947.1.patch
>
>
> {code}
> java.lang.RuntimeException: Map operator initialization failed
>         at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.init(MapRecordProcessor.java:247)
>         at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:147)
>         at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:137)
>         at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:344)
>         at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:179)
>         at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:171)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:422)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
>         at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:171)
>         at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:167)
>         at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.ClassCastException: org.apache.hadoop.hive.ql.exec.FileSinkOperator
cannot be cast to org.apache.hadoop.hive.ql.exec.DummyStoreOperator
>         at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.getJoinParentOp(MapRecordProcessor.java:300)
>         at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.getJoinParentOp(MapRecordProcessor.java:302)
>         at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.getJoinParentOp(MapRecordProcessor.java:302)
>         at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.getJoinParentOp(MapRecordProcessor.java:302)
>         at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.getJoinParentOp(MapRecordProcessor.java:302)
>         at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.init(MapRecordProcessor.java:189)
>         ... 15 more
> {code}



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