Hari Sekhon created HIVE-12176:
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Summary: NullPointerException in VectorUDAFMinString
Key: HIVE-12176
URL: https://issues.apache.org/jira/browse/HIVE-12176
Project: Hive
Issue Type: Bug
Components: SQL, UDF, Vectorization
Affects Versions: 1.2.1
Environment: HDP 2.3 + Kerberos
Reporter: Hari Sekhon
Assignee: Jitendra Nath Pandey
Priority: Critical
Hive gets the following NullPointerException when trying to go a group by
aggregate.
This occurs whether the engine is Tez or MR.
I'm attaching the full outputs from the hive session, but here is the crux of
it:
{code}
Error: java.lang.RuntimeException:
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:172)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error
while processing row
at
org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:52)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:163)
... 8 more
Caused by: java.lang.NullPointerException
at java.lang.System.arraycopy(Native Method)
at
org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.gen.VectorUDAFMinString$Aggregation.assign(VectorUDAFMinString.java:78)
at
org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.gen.VectorUDAFMinString$Aggregation.checkValue(VectorUDAFMinString.java:65)
at
org.apache.hadoop.hive.ql.exec.vector.expressions.aggregates.gen.VectorUDAFMinString.aggregateInput(VectorUDAFMinString.java:279)
at
org.apache.hadoop.hive.ql.exec.vector.VectorGroupByOperator$ProcessingModeBase.processAggregators(VectorGroupByOperator.java:157)
at
org.apache.hadoop.hive.ql.exec.vector.VectorGroupByOperator$ProcessingModeHashAggregate.processBatch(VectorGroupByOperator.java:335)
at
org.apache.hadoop.hive.ql.exec.vector.VectorGroupByOperator.process(VectorGroupByOperator.java:880)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:837)
at
org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.process(VectorSelectOperator.java:138)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:837)
at
org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator.process(VectorFilterOperator.java:117)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:837)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:97)
at
org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.forward(MapOperator.java:162)
at
org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:45)
... 9 more
{code}
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