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caixiaofeng commented on HIVE-13745: ------------------------------------ Problem occur in hive-3.1.0 SQL: select unix_timestamp (max('2019-09-09'),'YYYY-MM-DD') ; ERROR LOG: 2019-12-27 09:45:56,286 INFO [main] org.apache.hadoop.hive.ql.exec.SerializationUtilities: Deserializing ReduceWork using kryo 2019-12-27 09:45:56,539 INFO [main] org.apache.hadoop.hive.ql.exec.Utilities: Deserialized plan (via FILE) - name: null size: 3.13KB 2019-12-27 09:45:56,562 INFO [main] ExecReducer: <GBY>Id =3 <Children> <FS>Id =8 <Children> <\Children> <Parent>Id = 3 null<\Parent> <\FS> <\Children> <Parent><\Parent> <\GBY> 2019-12-27 09:45:56,562 INFO [main] org.apache.hadoop.hive.ql.exec.GroupByOperator: Initializing operator GBY[3] 2019-12-27 09:45:56,583 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.RuntimeException: Error in configuring object at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:113) at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:79) at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:137) at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:411) at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:393) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:178) 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:1729) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:172) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:110) ... 9 more Caused by: java.lang.RuntimeException: Reduce operator initialization failed at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.configure(ExecReducer.java:155) ... 14 more Caused by: java.lang.NullPointerException at org.apache.hadoop.hive.ql.udf.generic.GenericUDFToUnixTimeStamp.initializeInput(GenericUDFToUnixTimeStamp.java:87) at org.apache.hadoop.hive.ql.udf.generic.GenericUDFUnixTimeStamp.initializeInput(GenericUDFUnixTimeStamp.java:44) at org.apache.hadoop.hive.ql.udf.generic.GenericUDFToUnixTimeStamp.initialize(GenericUDFToUnixTimeStamp.java:71) at org.apache.hadoop.hive.ql.udf.generic.GenericUDF.initializeAndFoldConstants(GenericUDF.java:148) at org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator.initialize(ExprNodeGenericFuncEvaluator.java:146) at org.apache.hadoop.hive.ql.exec.GroupByOperator.initializeOp(GroupByOperator.java:295) at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:376) at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.configure(ExecReducer.java:148) ... 14 more 2019-12-27 09:45:56,591 INFO [main] org.apache.hadoop.mapred.Task: Running cleanup for the task 2019-12-27 09:45:56,697 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping ReduceTask metrics system... 2019-12-27 09:45:56,697 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ReduceTask metrics system stopped. 2019-12-27 09:45:56,698 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ReduceTask metrics system shutdown complete. > UDF current_date、current_timestamp、unix_timestamp NPE > ----------------------------------------------------- > > Key: HIVE-13745 > URL: https://issues.apache.org/jira/browse/HIVE-13745 > Project: Hive > Issue Type: Bug > Affects Versions: 2.0.0 > Reporter: Biao Wu > Assignee: Biao Wu > Priority: Major > Attachments: HIVE-13745.1.patch, HIVE-13745.2-branch-2.patch, > HIVE-13745.patch > > > NullPointerException when current_date is used in mapreduce -- This message was sent by Atlassian Jira (v8.3.4#803005)