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From "Hive QA (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21218) KafkaSerDe doesn't support topics created via Confluent Avro serializer
Date Mon, 09 Mar 2020 09:09:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17054775#comment-17054775
] 

Hive QA commented on HIVE-21218:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12996112/HIVE-21218.12.patch

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 18093 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.ql.parse.TestScheduledReplicationScenarios.testAcidTablesReplLoadBootstrapIncr
(batchId=270)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/21029/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/21029/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-21029/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 1 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12996112 - PreCommit-HIVE-Build

> 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-21218.12.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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