Soumyakanti Das created HIVE-26373:
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Summary: ClassCastException while inserting Avro data into Hbase
table for nested struct with Timestamp
Key: HIVE-26373
URL: https://issues.apache.org/jira/browse/HIVE-26373
Project: Hive
Issue Type: Bug
Components: Hive
Reporter: Soumyakanti Das
Assignee: Soumyakanti Das
For Avro data where the schema has nested struct with a Timestamp datatype, we
get the following ClassCastException:
{code:java}
2022-07-05T08:40:51,572 ERROR [LocalJobRunner Map Task Executor #0]
mr.ExecMapper: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime
Error while processing row
at
org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:573)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:148)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
at
org.apache.hadoop.hive.ql.exec.mr.ExecMapRunner.run(ExecMapRunner.java:37)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:465)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:349)
at
org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:271)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassCastException:
org.apache.hadoop.hive.common.type.Timestamp cannot be cast to
org.apache.hadoop.hive.serde2.lazy.LazyPrimitive
at
org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive.AbstractPrimitiveLazyObjectInspector.getPrimitiveWritableObject(AbstractPrimitiveLazyObjectInspector.java:40)
at
org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive.LazyTimestampObjectInspector.getPrimitiveWritableObject(LazyTimestampObjectInspector.java:29)
at
org.apache.hadoop.hive.serde2.lazy.LazyUtils.writePrimitiveUTF8(LazyUtils.java:308)
at
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:292)
at
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serializeField(LazySimpleSerDe.java:247)
at
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.doSerialize(LazySimpleSerDe.java:231)
at
org.apache.hadoop.hive.serde2.AbstractEncodingAwareSerDe.serialize(AbstractEncodingAwareSerDe.java:55)
at
org.apache.hadoop.hive.ql.exec.FileSinkOperator.process(FileSinkOperator.java:1059)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:937)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:95)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:937)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:128)
at
org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.forward(MapOperator.java:152)
at
org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:552)
... 11 more {code}
The problem starts in {{toLazyObject}} method of
{*}AvroLazyObjectInspector.java{*}, when
[this|https://github.com/apache/hive/blob/53009126f6fe7ccf24cf052fd6c156542f38b19d/serde/src/java/org/apache/hadoop/hive/serde2/avro/AvroLazyObjectInspector.java#L347]
condition returns false for {*}Timestamp{*}, preventing the conversion of
*Timestamp* to *LazyTimestamp*
[here|https://github.com/apache/hive/blob/53009126f6fe7ccf24cf052fd6c156542f38b19d/serde/src/java/org/apache/hadoop/hive/serde2/lazy/LazyFactory.java#L132].
The solution is to return {{true}} for Timestamps in the {{isPrimitive}} method.
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