[HIVE-24431] Null Pointer exception while sending data to jdbc

• Type: Bug
• Status: Open
• Priority: Trivial
• Resolution: Unresolved
• Component/s: JDBC storage handler
• Assignee: Unassigned
• Reporter: Fabien Carrion
• Created: 25/Nov/20 19:45
• Updated: 10/Jul/24 14:26

Description

I was receiving some null pointer while writing in db:

ERROR : FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.tez.TezTask. Vertex failed, vertexName=Reducer 3, vertexId=vertex_1604850281565_5081_1_02, diagnostics=[Task failed, taskId=task_1604850281565_5081_1_02_000001, diagnostics=[TaskAttempt 0 failed, info=[Error: Error while running task ( failure ) : attempt_1604850281565_5081_1_02_000001_0:java.lang.RuntimeException: java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row
at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:296)
at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:250)
at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:374)
at org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:73)
at org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:61)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
at org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:61)
at org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:37)
at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)
at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:69)
at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row
at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:304)
at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.run(ReduceRecordProcessor.java:318)
at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:267)
... 16 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row
at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:378)
at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:294)
... 18 more
Caused by: java.lang.NullPointerException
at org.apache.hive.storage.jdbc.JdbcSerDe.serialize(JdbcSerDe.java:166)
at org.apache.hive.storage.jdbc.JdbcSerDe.serialize(JdbcSerDe.java:59)
at org.apache.hadoop.hive.ql.exec.FileSinkOperator.process(FileSinkOperator.java:961)
at org.apache.hadoop.hive.ql.exec.Operator.baseForward(Operator.java:994)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:940)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:927)
at org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:95)
at org.apache.hadoop.hive.ql.exec.Operator.baseForward(Operator.java:994)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:940)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:927)
at org.apache.hadoop.hive.ql.exec.PTFOperator$PTFInvocation.handleOutputRows(PTFOperator.java:337)
at org.apache.hadoop.hive.ql.exec.PTFOperator$PTFInvocation.processRow(PTFOperator.java:325)
at org.apache.hadoop.hive.ql.exec.PTFOperator.process(PTFOperator.java:139)
at org.apache.hadoop.hive.ql.exec.Operator.baseForward(Operator.java:994)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:940)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:927)
at org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:95)
at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:363)
... 19 more

I just add a check in the patch.