We have Embedded Debezium set up in a program. It seems to be working correctly on 1.4.2, but when we try to upgrade to 1.6.0, or even 1.5.0 for that matter we run into the following issue.

We see an exception on launch stating:

org.apache.kafka.connect.errors.RetriableException: An exception occurred in the change event producer. This connector will be restarted. at io.debezium.pipeline.ErrorHandler.setProducerThrowable(ErrorHandler.java:38) at io.debezium.connector.postgresql.PostgresStreamingChangeEventSource.execute(PostgresStreamingChangeEventSource.java:153) at io.debezium.connector.postgresql.PostgresStreamingChangeEventSource.execute(PostgresStreamingChangeEventSource.java:38) at io.debezium.pipeline.ChangeEventSourceCoordinator.streamEvents(ChangeEventSourceCoordinator.java:159) at io.debezium.pipeline.ChangeEventSourceCoordinator.lambda$start$0(ChangeEventSourceCoordinator.java:122) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.base/java.util.concurrent.FutureTask.run(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.postgresql.util.PSQLException: Database connection failed when writing to copy at org.postgresql.core.v3.QueryExecutorImpl.flushCopy(QueryExecutorImpl.java:1052) at org.postgresql.core.v3.CopyDualImpl.flushCopy(CopyDualImpl.java:23) at org.postgresql.core.v3.replication.V3PGReplicationStream.updateStatusInternal(V3PGReplicationStream.java:193) at org.postgresql.core.v3.replication.V3PGReplicationStream.timeUpdateStatus(V3PGReplicationStream.java:184) at org.postgresql.core.v3.replication.V3PGReplicationStream.readInternal(V3PGReplicationStream.java:126) at org.postgresql.core.v3.replication.V3PGReplicationStream.readPending(V3PGReplicationStream.java:80) at io.debezium.connector.postgresql.connection.PostgresReplicationConnection$1.readPending(PostgresReplicationConnection.java:473) at io.debezium.connector.postgresql.PostgresStreamingChangeEventSource.searchWalPosition(PostgresStreamingChangeEventSource.java:274) at io.debezium.connector.postgresql.PostgresStreamingChangeEventSource.execute(PostgresStreamingChangeEventSource.java:134) ... 8 common frames omitted Caused by: java.net.SocketException: Broken pipe (Write failed) at java.base/java.net.SocketOutputStream.socketWrite0(Native Method) at java.base/java.net.SocketOutputStream.socketWrite(Unknown Source) at java.base/java.net.SocketOutputStream.write(Unknown Source) at java.base/java.io.BufferedOutputStream.flushBuffer(Unknown Source) at java.base/java.io.BufferedOutputStream.flush(Unknown Source) at org.postgresql.core.PGStream.flush(PGStream.java:554) at org.postgresql.core.v3.QueryExecutorImpl.flushCopy(QueryExecutorImpl.java:1050) ... 16 common frames omitted

which indicates it will attempt to reconnect. It then logs `Awaiting end of restart backoff period after a retriable error` a few times (4 times on this particular run) and finally just stops logging. It seems that the Debezium process is still running in our case, but the connector, in spite of saying it will restart, simply does not.