Avro schema compatibility issues when upgrading from Oracle Debezium 2.5.3.Final to 2.6.1.Final

[Per Dahlén]

This is a shortened version of the error message:

Caused by: org.apache.kafka.common.config.ConfigException: Failed to access Avro data from topic dbzvivaldi.EHDA.COHEAD : Schema being registered is incompatible with an earlier schema for subject "dbzvivaldi.EHDA.COHEAD-value", details: [{errorType:'READER_FIELD_MISSING_DEFAULT_VALUE', description:'The field 'ts_us' at path '/fields/2/type/fields/7' in the new schema has no default value and is missing in the old schema', additionalInfo:'ts_us'}, {errorType:'READER_FIELD_MISSING_DEFAULT_VALUE', description:'The field 'ts_ns' at path '/fields/2/type/fields/8' in the new schema has no default value and is missing in the old schema', additionalInfo:'ts_ns'}

When we downgrade to 2.5.3.Final the connector starts working again.

[Chris Cranford]

Hi -

Can you please raise a Jira issue [1].

Thanks,
Chris

[1]: https://issues.redhat.com/projects/DBZ

On 5/16/24 09:44, Per Dahlén wrote:

This is a shortened version of the error message:

Caused by: org.apache.kafka.common.config.ConfigException: Failed to access Avro data from topic dbzvivaldi.EHDA.COHEAD : Schema being registered is incompatible with an earlier schema for subject "dbzvivaldi.EHDA.COHEAD-value", details: [{errorType:'READER_FIELD_MISSING_DEFAULT_VALUE', description:'The field 'ts_us' at path '/fields/2/type/fields/7' in the new schema has no default value and is missing in the old schema', additionalInfo:'ts_us'}, {errorType:'READER_FIELD_MISSING_DEFAULT_VALUE', description:'The field 'ts_ns' at path '/fields/2/type/fields/8' in the new schema has no default value and is missing in the old schema', additionalInfo:'ts_ns'}

When we downgrade to 2.5.3.Final the connector starts working again. --
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[Per Dahlén]

I've raised a Jira issue now

https://issues.redhat.com/browse/DBZ-7880

//Per