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https://issues.apache.org/jira/browse/HUDI-2320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17406219#comment-17406219
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ASF GitHub Bot commented on HUDI-2320:
--------------------------------------
dongkelun commented on pull request #3502:
URL: https://github.com/apache/hudi/pull/3502#issuecomment-907640353
There is no problem with the local virtual machine verification. The reason
for the problem mentioned above is that the schema of producer is not
completely consistent with the schema obtained by Hudi
JdbcbasedSchemaProvider.The specific differences are as follows：
The producer shcema's field:
```java
{"name": "userId", "type": "string"}
```
The JdbcbasedSchemaProvider's field:
```java
{"name": "userid", "type":["null","string"],"default":null}
```
Modify producer shcema's field to '{name ":" userid "," type ": [" null ","
string "]," default ": null}' or '{name": "userid", "type": ["null",
"string"]}',Then it can run normally
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> Add support ByteArrayDeserializer in AvroKafkaSource
> ----------------------------------------------------
>
> Key: HUDI-2320
> URL: https://issues.apache.org/jira/browse/HUDI-2320
> Project: Apache Hudi
> Issue Type: Improvement
> Components: DeltaStreamer
> Reporter: 董可伦
> Assignee: 董可伦
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
>
> When the 'value.serializer' of Kafka Avro Producer is
> 'org.apache.kafka.common.serialization.ByteArraySerializer',Use the following
> configuration
> {code:java}
> --source-class org.apache.hudi.utilities.sources.AvroKafkaSource \
> --schemaprovider-class
> org.apache.hudi.utilities.schema.JdbcbasedSchemaProvider \
> --hoodie-conf
> "hoodie.deltastreamer.source.kafka.value.deserializer.class=org.apache.kafka.common.serialization.ByteArrayDeserializer"
> {code}
> For now,It will throw an exception::
> {code:java}
> java.lang.ClassCastException: [B cannot be cast to
> org.apache.avro.generic.GenericRecord{code}
> After support ByteArrayDeserializer,Use the configuration above，It works
> properly.And there is no need to provide 'schema.registry.url',For example,
> we can use the JdbcbasedSchemaProvider to get the sourceSchema
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