Xuefu Zhang created HIVE-14617:
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Summary: NPE in UDF MapValues() if input is null
Key: HIVE-14617
URL: https://issues.apache.org/jira/browse/HIVE-14617
Project: Hive
Issue Type: Bug
Components: HiveServer2
Affects Versions: 2.1.0
Reporter: Xuefu Zhang
Assignee: Xuefu Zhang
Job fails with error msg as follows:
{code}
Error: java.lang.RuntimeException:
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row
{"ts":null,"_max_added_id":null,"identity_info":null,"vehicle_specs":null,"tracking_info":null,"color_info":null,"vehicle_traits":null,"detail_info":null,"_row_key":null,"_shard":null,"image_info":null,"vehicle_tags":null,"activation_info":null,"flavor_info":null,"sounds":null,"legacy_info":null,"images":null,"datestr":"2016-08-24"}
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:179) 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$2.run(YarnChild.java:163) at
java.security.AccessController.doPrivileged(Native Method) at
javax.security.auth.Subject.doAs(Subject.java:422) at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by:
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row
{"ts":null,"_max_added_id":null,"identity_info":null,"vehicle_specs":null,"tracking_info":null,"color_info":null,"vehicle_traits":null,"detail_info":null,"_row_key":null,"_shard":null,"image_info":null,"vehicle_tags":null,"activation_info":null,"flavor_info":null,"sounds":null,"legacy_info":null,"images":null,"datestr":"2016-08-24"}
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:507) at
org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:170) ... 8
more Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Error
evaluating map_values(vehicle_traits.vehicle_traits) at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:82)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:815) at
org.apache.hadoop.hive.ql.exec.LateralViewForwardOperator.processOp(LateralViewForwardOperator.java:37)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:815) at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:95)
at
org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.forward(MapOperator.java:157)
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:497)
... 9 more Caused by: java.lang.NullPointerException at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFMapValues.evaluate(GenericUDFMapValues.java:64)
at
org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator._evaluate(ExprNodeGenericFuncEvaluator.java:185)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:77)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:65)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:77)
... 15 more
{code}
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