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Posted to jira@kafka.apache.org by "Manikumar (JIRA)" <ji...@apache.org> on 2018/10/31 09:03:00 UTC
[jira] [Assigned] (KAFKA-5891) Cast transformation fails if record
schema contains timestamp field
[ https://issues.apache.org/jira/browse/KAFKA-5891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Manikumar reassigned KAFKA-5891:
--------------------------------
Assignee: Maciej Bryński
> Cast transformation fails if record schema contains timestamp field
> -------------------------------------------------------------------
>
> Key: KAFKA-5891
> URL: https://issues.apache.org/jira/browse/KAFKA-5891
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 0.11.0.0
> Reporter: Artem Plotnikov
> Assignee: Maciej Bryński
> Priority: Major
> Fix For: 1.0.3, 1.1.2, 2.0.1
>
>
> I have the following simple type cast transformation:
> {code}
> name=postgresql-source-simple
> connector.class=io.confluent.connect.jdbc.JdbcSourceConnector
> tasks.max=1
> connection.url=jdbc:postgresql://localhost:5432/testdb?user=postgres&password=mysecretpassword
> query=SELECT 1::INT as a, '2017-09-14 10:23:54'::TIMESTAMP as b
> transforms=Cast
> transforms.Cast.type=org.apache.kafka.connect.transforms.Cast$Value
> transforms.Cast.spec=a:boolean
> mode=bulk
> topic.prefix=clients
> {code}
> Which fails with the following exception in runtime:
> {code}
> [2017-09-14 16:51:01,885] ERROR Task postgresql-source-simple-0 threw an uncaught and unrecoverable exception (org.apache.kafka.connect.runtime.WorkerTask:148)
> org.apache.kafka.connect.errors.DataException: Invalid Java object for schema type INT64: class java.sql.Timestamp for field: "null"
> at org.apache.kafka.connect.data.ConnectSchema.validateValue(ConnectSchema.java:239)
> at org.apache.kafka.connect.data.ConnectSchema.validateValue(ConnectSchema.java:209)
> at org.apache.kafka.connect.data.Struct.put(Struct.java:214)
> at org.apache.kafka.connect.transforms.Cast.applyWithSchema(Cast.java:152)
> at org.apache.kafka.connect.transforms.Cast.apply(Cast.java:108)
> at org.apache.kafka.connect.runtime.TransformationChain.apply(TransformationChain.java:38)
> at org.apache.kafka.connect.runtime.WorkerSourceTask.sendRecords(WorkerSourceTask.java:190)
> at org.apache.kafka.connect.runtime.WorkerSourceTask.execute(WorkerSourceTask.java:168)
> at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:146)
> at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:190)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> If I remove the transforms.* part of the connector it will work correctly. Actually, it doesn't really matter which types I use in the transformation for field 'a', just the existence of a timestamp field brings the exception.
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