Shubham Chaurasia created HIVE-23022:
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Summary: Arrow deserializer should ensure size of hive vector
equal to arrow vector
Key: HIVE-23022
URL: https://issues.apache.org/jira/browse/HIVE-23022
Project: Hive
Issue Type: Bug
Components: llap, Serializers/Deserializers
Reporter: Shubham Chaurasia
Assignee: Shubham Chaurasia
Arrow deserializer - {{org.apache.hadoop.hive.ql.io.arrow.Deserializer}} in
some cases does not set the size of hive vector correctly. Size of hive vector
should be set at least equal to arrow vector to be able to read (accommodate)
it fully.
Following exception can be seen when we try to read some table which contains
complex types (struct nested in list to be specific) and table size is more
than default (1024) batch/vector size.
{code:java}
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1024
at
org.apache.hadoop.hive.ql.io.arrow.Deserializer.readStruct(Deserializer.java:440)
at org.apache.hadoop.hive.ql.io.arrow.Deserializer.read(Deserializer.java:143)
at
org.apache.hadoop.hive.ql.io.arrow.Deserializer.readList(Deserializer.java:394)
at org.apache.hadoop.hive.ql.io.arrow.Deserializer.read(Deserializer.java:137)
at
org.apache.hadoop.hive.ql.io.arrow.Deserializer.deserialize(Deserializer.java:122)
at
org.apache.hadoop.hive.ql.io.arrow.ArrowColumnarBatchSerDe.deserialize(ArrowColumnarBatchSerDe.java:284)
at
org.apache.hadoop.hive.llap.LlapArrowRowRecordReader.next(LlapArrowRowRecordReader.java:75)
... 23 more
{code}
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