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ASF GitHub Bot logged work on HIVE-21218: ----------------------------------------- Author: ASF GitHub Bot Created on: 04/Mar/20 02:35 Start Date: 04/Mar/20 02:35 Worklog Time Spent: 10m Work Description: davidov541 commented on pull request #933: HIVE-21218: Adding support for Confluent Kafka Avro message format URL: https://github.com/apache/hive/pull/933 Adds support for indicating a number of bytes at the beginning of each message to ignore. This is added in order to support Confluent's Avro message format for Kafka, which has five magic bytes at the beginning of each message. A pre-defined confluent format is given as well, which automatically skips the first five bytes. This is a resubmission of https://github.com/apache/hive/pull/526, which had been abandoned. Comments in that thread have been applied. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 397192) Time Spent: 4h 50m (was: 4h 40m) > 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-21218.2.patch, HIVE-21218.3.patch, HIVE-21218.patch > > Time Spent: 4h 50m > 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)