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https://issues.apache.org/jira/browse/HIVE-8264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14148537#comment-14148537
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Thiruvel Thirumoolan commented on HIVE-8264:
--------------------------------------------
[~mmccline] Have you seen this problem before or will it be addressed by any of
the open jiras you are looking into?
> Math UDFs in Reducer-with-vectorization fail with
> ArrayIndexOutOfBoundsException
> --------------------------------------------------------------------------------
>
> Key: HIVE-8264
> URL: https://issues.apache.org/jira/browse/HIVE-8264
> Project: Hive
> Issue Type: Bug
> Components: Tez, UDF, Vectorization
> Affects Versions: 0.14.0
> Environment: Hive trunk - as of today
> Tez - 0.5.0
> Hadoop - 2.5
> Reporter: Thiruvel Thirumoolan
> Labels: mathfunction, tez, vectorization
>
> Following queries are representative of the exceptions we are seeing with
> trunk. These queries pass if vectorization is disabled (or if limit is
> removed, which means no reducer).
> select name, log2(0) from (select name from mytable limit 1) t;
> select name, rand() from (select name from mytable limit 1) t;
> .. similar patterns with other Math UDFs'.
> Exception:
> ], TaskAttempt 3 failed, info=[Error: Failure while running
> task:java.lang.RuntimeException: java.lang.RuntimeException:
> org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
> processing vector batch (tag=0)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:177)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:142)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:324)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:180)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:172)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1637)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:172)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:167)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> Caused by: java.lang.RuntimeException:
> org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
> processing vector batch (tag=0)
> at
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:254)
> at
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.run(ReduceRecordProcessor.java:167)
> at
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:154)
> ... 14 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime
> Error while processing vector batch (tag=0)
> at
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.processVectors(ReduceRecordSource.java:360)
> at
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:242)
> ... 16 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Error evaluating
> null
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.processOp(VectorSelectOperator.java:127)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:801)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorLimitOperator.processOp(VectorLimitOperator.java:47)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:801)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.processOp(VectorSelectOperator.java:139)
> at
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.processVectors(ReduceRecordSource.java:347)
> ... 17 more
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
> at
> org.apache.hadoop.hive.ql.exec.vector.expressions.ConstantVectorExpression.evaluateLong(ConstantVectorExpression.java:102)
> at
> org.apache.hadoop.hive.ql.exec.vector.expressions.ConstantVectorExpression.evaluate(ConstantVectorExpression.java:150)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.processOp(VectorSelectOperator.java:125)
> ... 22 more
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