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https://issues.apache.org/jira/browse/HIVE-21218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David McGinnis updated HIVE-21218:
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Attachment: HIVE-21218.11.patch
> KafkaSerDe doesn't support topics created via Confluent Avro serializer
> -----------------------------------------------------------------------
>
> Key: HIVE-21218
> URL: https://issues.apache.org/jira/browse/HIVE-21218
> Project: Hive
> Issue Type: Bug
> Components: kafka integration, Serializers/Deserializers
> Affects Versions: 3.1.1
> Reporter: Milan Baran
> Assignee: David McGinnis
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-21218.10.patch, HIVE-21218.11.patch,
> HIVE-21218.2.patch, HIVE-21218.3.patch, HIVE-21218.4.patch,
> HIVE-21218.5.patch, HIVE-21218.6.patch, HIVE-21218.7.patch,
> HIVE-21218.8.patch, HIVE-21218.9.patch, HIVE-21218.patch
>
> Time Spent: 14h 40m
> Remaining Estimate: 0h
>
> According to [Google
> groups|https://groups.google.com/forum/#!topic/confluent-platform/JYhlXN0u9_A]
> the Confluent avro serialzier uses propertiary format for kafka value -
> <magic_byte 0x00><4 bytes of schema ID><regular avro bytes for object that
> conforms to schema>.
> This format does not cause any problem for Confluent kafka deserializer which
> respect the format however for hive kafka handler its bit a problem to
> correctly deserialize kafka value, because Hive uses custom deserializer from
> bytes to objects and ignores kafka consumer ser/deser classes provided via
> table property.
> It would be nice to support Confluent format with magic byte.
> Also it would be great to support Schema registry as well.
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