Kafka Connect sink tasks ignore tolerance limits - apache-kafka

Question

I try to ignore bad messages in sink connector with errors.tolerance: all option. Full connector configuration:
{
"name": "crm_data-sink_pandora",
"config": {
"connector.class": "io.confluent.connect.jdbc.JdbcSinkConnector",
"tasks.max": 6,
"topics": "crm_account_detail,crm_account_on_competitors,crm_event,crm_event_participation",
"connection.url": "jdbc:postgresql://dburl/service?prepareThreshold=0",
"connection.user": "pandora.app",
"connection.password": "*******",
"dialect.name": "PostgreSqlDatabaseDialect",
"insert.mode": "upsert",
"pk.mode": "record_value",
"pk.fields": "guid",
"table.name.format": "pandora.${topic}",
"errors.tolerance": "all",
"errors.log.enable":true,
"errors.log.include.messages":true,
"errors.deadletterqueue.topic.name":"crm_data_deadletterqueue",
"errors.deadletterqueue.context.headers.enable":true
}
}
Target table DDL:
create table crm_event_participation
(
guid char(36) not null
constraint crm_event_participation_pkey
primary key,
created_on timestamp,
created_by_guid char(36),
modified_on timestamp,
modified_by_guid char(36),
process_listeners integer,
event_guid char(36),
event_response varchar(250),
note varchar(500),
is_from_group boolean,
contact_guid char(36),
target_item integer,
account_guid char(36),
employer_id integer
);
Connector starts successfully, but it fails if error occurs (e.g. missing field).
curl -X GET http://kafka-connect:9092/connectors/crm_data-sink_pandora/status:
{
"name": "crm_data-sink_pandora",
"connector": {
"state": "RUNNING",
"worker_id": "192.168.2.254:10900"
},
"tasks": [
{
"state": "FAILED",
"trace":
"org.apache.kafka.connect.errors.ConnectException: Exiting WorkerSinkTask due to unrecoverable exception.
at org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:586)
at org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:322)
at org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:225)
at org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:193)
at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:175)
at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:219)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)\n\tat 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.apache.kafka.connect.errors.ConnectException: Table \"pandora\".\"crm_event_participation\" is missing fields ([SinkRecordField{schema=Schema{STRING}, name='event_id', isPrimaryKey=false}, SinkRecordField{schema=Schema{STRING}, name='event_response_guid', isPrimaryKey=false}]) and auto-evolution is disabled
at io.confluent.connect.jdbc.sink.DbStructure.amendIfNecessary(DbStructure.java:140)
at io.confluent.connect.jdbc.sink.DbStructure.createOrAmendIfNecessary(DbStructure.java:73)
at io.confluent.connect.jdbc.sink.BufferedRecords.add(BufferedRecords.java:84)
at io.confluent.connect.jdbc.sink.JdbcDbWriter.write(JdbcDbWriter.java:65)
at io.confluent.connect.jdbc.sink.JdbcSinkTask.put(JdbcSinkTask.java:73)
at org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:564)
... 10 more",
"id": 0,
"worker_id": "192.168.2.254:10900"
}
...
]
}
Log with exception:
[2019-03-29 16:59:30,924] INFO Unable to find fields [SinkRecordField{schema=Schema{INT32}, name='process_listners', isPrimaryKey=false}] among column names [employer_id, modified_on, modified_by_guid, contact_guid, target_item, guid, created_on, process_listeners, event_guid, created_by_guid, is_from_group, account_guid, event_response, note] (io.confluent.connect.jdbc.sink.DbStructure)
[2019-03-29 16:59:30,924] ERROR WorkerSinkTask{id=crm_data-sink_pandora-1} Task threw an uncaught and unrecoverable exception. Task is being killed and will not recover until manually restarted. (org.apache.kafka.connect.runtime.WorkerSinkTask)
org.apache.kafka.connect.errors.ConnectException: Table "pandora"."crm_event_participation" is missing fields ([SinkRecordField{schema=Schema{INT32}, name='process_listners', isPrimaryKey=false}]) and auto-evolution is disabled at io.confluent.connect.jdbc.sink.DbStructure.amendIfNecessary(DbStructure.java:140)
at io.confluent.connect.jdbc.sink.DbStructure.createOrAmendIfNecessary(DbStructure.java:73)
at io.confluent.connect.jdbc.sink.BufferedRecords.add(BufferedRecords.java:84)
at io.confluent.connect.jdbc.sink.JdbcDbWriter.write(JdbcDbWriter.java:65)
at io.confluent.connect.jdbc.sink.JdbcSinkTask.put(JdbcSinkTask.java:73)
at org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:564)
at org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:322)
at org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:225)
at org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:193)
at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:175)
at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:219)
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)
Please explain me what could be wrong in connector configuration? I use Kafka 2.0.0 and JdbcSinkConnector 5.1.0.

Answer 1

In your Kafka message you have a field process_listners. Column with that name is not present in your table.
I think you have typo. In table you have column process_listeners, not process_listners.
errors.tolerance property apply only to errors during Converting messages.
More regarding errors.tolerance you can read: kafka connect - jdbc sink sql exception