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From Tale Firefly <tale.h...@gmail.com>
Subject Hive query fails with error "expecting dummy store operator but found: FS[26]"
Date Thu, 22 Sep 2016 19:06:16 GMT
Hello !

I send you this mail because I perform an hive query with Tez  and it fails
with a strange error :
The error is like this :
###
ERROR : Vertex failed, vertexName=Reducer 2,
vertexId=vertex_1473870963805_157168_11_02, diagnostics=[Task failed,
taskId=task_1473870963805_157168_11_02_000035, diagnostics=[TaskAttempt 0
failed, info=[Error: Failure while running task:java.lang.RuntimeException:
java.lang.IllegalStateException: Was expecting dummy store operator but
found: FS[26]
at
org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:173)

at
org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:139)
at
org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:344)

at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:181)

at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:172)

at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)

at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:172)

at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:168)

at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

###

I wanted to know is someone already saw this kind of error ?
It is done by doing a query using beeline and Tez as execution engine.

I found some information here :
http://svn.apache.org/viewvc/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/DummyStoreOperator.java?view=markup&pathrev=1423731

But I am not sure to fully understand yet why the error mention FS ? Is FS
the file separator described here ?
http://www.aivosto.com/vbtips/control-characters.html#FS

Thank you in advance for your help o/

Best regards.

Tale

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