clintropolis commented on pull request #11040:
URL: https://github.com/apache/druid/pull/11040#issuecomment-817023099
I haven't quite determined what is going on yet, but it seems like there is
some sort of serialization error that is causing the newly added
schema-registry integration test to fail:
```
Caused by: com.fasterxml.jackson.databind.exc.ValueInstantiationException:
Cannot construct instance of
`org.apache.druid.data.input.avro.SchemaRegistryBasedAvroBytesDecoder`,
problem: Expected at least one URL to be passed in constructor
at [Source:
(byte[])"{"type":"index_kafka","id":"index_kafka_kafka_data_format_indexing_service_test_c940ce28-01a9-4070-9dc0-27df2903249e
%?????? ??
??!?_a0ffca1f01390e3_ejndffbp","resource":{"availabilityGroup":"index_kafka_kafka_data_format_indexing_service_test_c940ce28-01a9-4070-9dc0-27df2903249e
%?????? ??
??!?_a0ffca1f01390e3","requiredCapacity":1},"dataSchema":{"dataSource":"kafka_data_format_indexing_service_test_c940ce28-01a9-4070-9dc0-27df2903249e
%?????? ?? ??!?","[truncated 4940 bytes]; line: 1, column: 5072]
(through reference chain:
org.apache.druid.indexing.kafka.KafkaIndexTask["ioConfig"]->org.apache.druid.indexing.kafka.KafkaIndexTaskIOConfig["inputFormat"]->org.apache.druid.data.input.avro.AvroStreamInputFormat["avroBytesDecoder"])
at
com.fasterxml.jackson.databind.exc.ValueInstantiationException.from(ValueInstantiationException.java:47)
at
com.fasterxml.jackson.databind.DeserializationContext.instantiationException(DeserializationContext.java:1735)
at
com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.wrapAsJsonMappingException(StdValueInstantiator.java:491)
at
com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.rewrapCtorProblem(StdValueInstantiator.java:514)
at
com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromObjectWith(StdValueInstantiator.java:285)
```
https://travis-ci.com/github/apache/druid/jobs/496046398#L9197
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