[jira] [Assigned] (KAFKA-10387) Cannot include SMT configs with source connector that uses topic.creation.* properties

["Konstantine Karantasis (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-10387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantine Karantasis reassigned KAFKA-10387:
----------------------------------------------

    Assignee: Konstantine Karantasis

> Cannot include SMT configs with source connector that uses topic.creation.* properties
> --------------------------------------------------------------------------------------
>
>                 Key: KAFKA-10387
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10387
>             Project: Kafka
>          Issue Type: Bug
>          Components: KafkaConnect
>    Affects Versions: 2.6.0
>            Reporter: Arjun Satish
>            Assignee: Konstantine Karantasis
>            Priority: Major
>
> Let's say we try to create a connector with the following config:
> {code:java}
> {
>   "connector.class": "io.debezium.connector.postgresql.PostgresConnector",
>   "tasks.max": "1",
>   "database.hostname": "localhost",
>   "database.port": 32843,
>   "database.user": "test",
>   "database.password": "test",
>   "database.dbname": "test",
>   "database.server.name": "tcpsql",
>   "table.whitelist": "public.numerics",
>   "transforms": "abc",
>   "transforms.abc.type": "io.debezium.transforms.ExtractNewRecordState",
>   "topic.creation.default.partitions": "1",
>   "topic.creation.default.replication.factor": "1"
> }
> {code}
> this fails with the following error in the Connector worker:
> {code:java}
> [2020-08-11 02:47:05,908] ERROR Failed to start task deb-0 (org.apache.kafka.connect.runtime.Worker:560)
> org.apache.kafka.connect.errors.ConnectException: org.apache.kafka.common.config.ConfigException: Unknown configuration 'transforms.abc.type'
> 	at org.apache.kafka.connect.runtime.ConnectorConfig.transformations(ConnectorConfig.java:296)
> 	at org.apache.kafka.connect.runtime.Worker.buildWorkerTask(Worker.java:605)
> 	at org.apache.kafka.connect.runtime.Worker.startTask(Worker.java:555)
> 	at org.apache.kafka.connect.runtime.distributed.DistributedHerder.startTask(DistributedHerder.java:1251)
> 	at org.apache.kafka.connect.runtime.distributed.DistributedHerder.access$1700(DistributedHerder.java:127)
> 	at org.apache.kafka.connect.runtime.distributed.DistributedHerder$10.call(DistributedHerder.java:1266)
> 	at org.apache.kafka.connect.runtime.distributed.DistributedHerder$10.call(DistributedHerder.java:1262)
> 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
> 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
> 	at java.base/java.lang.Thread.run(Thread.java:832)
> Caused by: org.apache.kafka.common.config.ConfigException: Unknown configuration 'transforms.abc.type'
> 	at org.apache.kafka.common.config.AbstractConfig.get(AbstractConfig.java:159)
> 	at org.apache.kafka.connect.runtime.SourceConnectorConfig$EnrichedSourceConnectorConfig.get(SourceConnectorConfig.java:57)
> 	at org.apache.kafka.connect.runtime.SourceConnectorConfig.get(SourceConnectorConfig.java:141)
> 	at org.apache.kafka.common.config.AbstractConfig.getClass(AbstractConfig.java:216)
> 	at org.apache.kafka.connect.runtime.ConnectorConfig.transformations(ConnectorConfig.java:281)
> 	... 10 more
> {code}
> connector creation works fine, if we remove the topic.creation properties above. 
> Not entirely sure but it looks like the piece of code that might need a fix is here (as it does not add {{transforms.*}} configs into the returned ConfigDef instances: https://github.com/apache/kafka/blob/2.6.0/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/SourceConnectorConfig.java#L94



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