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https://issues.apache.org/jira/browse/KAFKA-6806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16512623#comment-16512623
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Rajini Sivaram commented on KAFKA-6806:
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Thanks [~rhauch]
> Unable to validate sink connectors without "topics" component which is not
> required
> -----------------------------------------------------------------------------------
>
> Key: KAFKA-6806
> URL: https://issues.apache.org/jira/browse/KAFKA-6806
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 1.1.0
> Environment: CP4.1, Centos7
> Reporter: Ivan Majnarić
> Priority: Major
>
> The bug is happening when you try to create new connector through for example
> kafka-connect-ui.
> While both source and sink connectors were able to be validated through REST
> without "topics" as add-on with "connector.class" like this:
> {code:java}
> PUT /
> http://connect-url:8083/connector-plugins/com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraSinkConnector/config/validate
> {
> "connector.class":
> "com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraSinkConnector",
> }{code}
> In the new version of CP4.1 you still can validate *source connectors* but
> not *sink connectors*. If you want to validate sink connectors you need to
> add to request -> "topics" config, like:
> {code:java}
> PUT /
> http://connect-url:8083/connector-plugins/com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraSinkConnector/config/validate
> {
> "connector.class":
> "com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraSinkConnector",
> "topics": "test-topic"
> }{code}
> So there is a little missmatch of the ways how to validate connectors which I
> think happened accidentally.
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