Kafka Connect Debezium postgres - postgresql

Question

I am trying to connect a Postgres SQL db hosted in Amazon RDS with a Kafka topic using Debezium.
I am following the following tutorial :
http://debezium.io/docs/tutorial/
My kafka and kafka connect services start up fine and the kafka connect service also picks up my debezium postgres connector jars in /usr/share/java dir.
However on trying to attach the postgres config json via the kafka connect API using the following curl command :
curl -i -X POST -H "Accept:application/json" -H "Content-Type:application/json" localhost:8083/connectors/ -d #connector1.json
I end up getting the following error:
[2018-06-13 23:45:44,749] ERROR Uncaught exception in REST call to /connectors/ (org.apache.kafka.connect.runtime.rest.errors.ConnectExceptionMapper:61)
org.apache.kafka.connect.errors.ConnectException: Could not intialize type registry
at io.debezium.connector.postgresql.connection.PostgresConnection.<init>(PostgresConnection.java:68)
at io.debezium.connector.postgresql.PostgresConnector.validate(PostgresConnector.java:95)
at org.apache.kafka.connect.runtime.AbstractHerder.validateConnectorConfig(AbstractHerder.java:277)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder$6.call(DistributedHerder.java:534)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder$6.call(DistributedHerder.java:531)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder.tick(DistributedHerder.java:267)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder.run(DistributedHerder.java:216)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.postgresql.util.PSQLException: The connection attempt failed.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:275)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:194)
at org.postgresql.Driver.makeConnection(Driver.java:431)
at org.postgresql.Driver.connect(Driver.java:247)
at io.debezium.jdbc.JdbcConnection.lambda$patternBasedFactory$1(JdbcConnection.java:161)
at io.debezium.jdbc.JdbcConnection.connection(JdbcConnection.java:585)
at io.debezium.connector.postgresql.connection.PostgresConnection.<init>(PostgresConnection.java:65)
... 11 more
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.postgresql.core.PGStream.<init>(PGStream.java:62)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:144)
... 18 more
Could some please advice on the exception and how to resolve it?
Is there a property/configuratuion that I may be missing here?

Answer 1

Do you have postgres database port configured to be accessible from outside?
IIRC RDS database uses SSL for connection so it might be necessary to configure SSL also in postgres connector.