Bruno Cadonna created FLINK-30740:
-------------------------------------
Summary: INSERT to Kafka does not work when Kafka config
{{auto.create.topics.enabled}} is set to false
Key: FLINK-30740
URL: https://issues.apache.org/jira/browse/FLINK-30740
Project: Flink
Issue Type: Bug
Components: Table Store
Affects Versions: table-store-0.3.0
Reporter: Bruno Cadonna
If I use Kafka as the log system and set {{auto.create.topics.enabled}} to
false in Kafka INSERTs do not work.
Steps to reproduce:
# Start a Kafka broker and set {{auto.create.topics.enabled}} to false
# Issue the following statements
{code:sql}
CREATE CATALOG table_store_catalog WITH (
'type'='table-store',
'warehouse'=<path to object store>
);
USE CATALOG table_store_catalog;
CREATE TABLE word_count (
word STRING PRIMARY KEY NOT ENFORCED,
cnt BIGINT
) WITH (
'log.system' = 'kafka',
'kafka.bootstrap.servers' = <address to broker>,
'kafka.topic' = 'test-topic,
'log.consistency' = 'eventual'
);
INSERT INTO word_count VALUES ('foo', 1);
{code}
The task manager logs show:
{code}
flink-sandbox-taskmanager-1 | 2023-01-18 12:46:17,085 WARN
org.apache.flink.table.store.shaded.org.apache.kafka.clients.NetworkClient [] -
[Producer clientId=producer-1] Error while fetching metadata with correlation
id 544 : {test-topic=UNKNOWN_TOPIC_OR_PARTITION}
{code}
The INSERT job on the task manager fails with
{code:java}
org.apache.flink.runtime.JobException: Recovery is suppressed by
NoRestartBackoffTimeStrategy
at
org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:138)
at
org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:82)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:301)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:291)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:282)
at
org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:739)
at
org.apache.flink.runtime.scheduler.SchedulerNG.updateTaskExecutionState(SchedulerNG.java:78)
at
org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:443)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.lambda$handleRpcInvocation$1(AkkaRpcActor.java:304)
at
org.apache.flink.runtime.concurrent.akka.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:83)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:302)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:217)
at
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:78)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:163)
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:24)
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:20)
at scala.PartialFunction.applyOrElse(PartialFunction.scala:123)
at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122)
at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:20)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
at akka.actor.Actor.aroundReceive(Actor.scala:537)
at akka.actor.Actor.aroundReceive$(Actor.scala:535)
at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:220)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:580)
at akka.actor.ActorCell.invoke(ActorCell.scala:548)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:270)
at akka.dispatch.Mailbox.run(Mailbox.scala:231)
at akka.dispatch.Mailbox.exec(Mailbox.scala:243)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at
java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at
java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)
Caused by: java.lang.NullPointerException
at
org.apache.flink.table.store.kafka.KafkaSinkFunction.lambda$open$0(KafkaSinkFunction.java:75)
at
org.apache.flink.table.store.shaded.org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:982)
at
org.apache.flink.table.store.shaded.org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:885)
at
org.apache.flink.table.store.shaded.streaming.connectors.kafka.internals.FlinkKafkaInternalProducer.send(FlinkKafkaInternalProducer.java:142)
at
org.apache.flink.table.store.shaded.streaming.connectors.kafka.FlinkKafkaProducer.invoke(FlinkKafkaProducer.java:926)
at
org.apache.flink.table.store.shaded.streaming.connectors.kafka.FlinkKafkaProducer.invoke(FlinkKafkaProducer.java:101)
at
org.apache.flink.streaming.api.functions.sink.TwoPhaseCommitSinkFunction.invoke(TwoPhaseCommitSinkFunction.java:245)
at
org.apache.flink.table.store.connector.sink.StoreWriteOperator.processElement(StoreWriteOperator.java:134)
at
org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:233)
at
org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.processElement(AbstractStreamTaskNetworkInput.java:134)
at
org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.emitNext(AbstractStreamTaskNetworkInput.java:105)
at
org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:65)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:519)
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:203)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:804)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:753)
at
org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:948)
at
org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:927)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:741)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:563)
at java.lang.Thread.run(Thread.java:750)
Suppressed:
org.apache.flink.table.store.shaded.streaming.connectors.kafka.FlinkKafkaException:
Failed to send data to Kafka: Pending record count must be zero at this point:
1
at
org.apache.flink.table.store.shaded.streaming.connectors.kafka.FlinkKafkaProducer.checkErroneous(FlinkKafkaProducer.java:1428)
at
org.apache.flink.table.store.shaded.streaming.connectors.kafka.FlinkKafkaProducer.close(FlinkKafkaProducer.java:976)
at
org.apache.flink.api.common.functions.util.FunctionUtils.closeFunction(FunctionUtils.java:41)
at
org.apache.flink.table.store.connector.sink.StoreWriteOperator.close(StoreWriteOperator.java:166)
at
org.apache.flink.streaming.runtime.tasks.StreamOperatorWrapper.close(StreamOperatorWrapper.java:163)
at
org.apache.flink.streaming.runtime.tasks.RegularOperatorChain.closeAllOperators(RegularOperatorChain.java:125)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.closeAllOperators(StreamTask.java:997)
at org.apache.flink.util.IOUtils.closeAll(IOUtils.java:254)
at
org.apache.flink.core.fs.AutoCloseableRegistry.doClose(AutoCloseableRegistry.java:72)
at
org.apache.flink.util.AbstractAutoCloseableRegistry.close(AbstractAutoCloseableRegistry.java:127)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.cleanUp(StreamTask.java:916)
at
org.apache.flink.runtime.taskmanager.Task.lambda$restoreAndInvoke$0(Task.java:930)
at
org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:948)
at
org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:930)
... 3 more
Caused by: java.lang.IllegalStateException: Pending record count must
be zero at this point: 1
at
org.apache.flink.table.store.shaded.streaming.connectors.kafka.FlinkKafkaProducer.flush(FlinkKafkaProducer.java:1111)
at
org.apache.flink.table.store.shaded.streaming.connectors.kafka.FlinkKafkaProducer.close(FlinkKafkaProducer.java:936)
... 15 more
{code}
Apparently, the Kafka topic is created when the first record is written to the
Kafka topic, although I found code to create a Kafka topic explicitly on table
creation:
https://github.com/apache/flink-table-store/blob/f201b507fef88501c4beb4c62807bef818e31be5/flink-table-store-kafka/src/main/java/org/apache/flink/table/store/kafka/KafkaLogStoreFactory.java#L123
Topic creation should not rely on enabling auto topic creation in Kafka,
because users might opt to disable auto topic creation to prevent unexpected
costs when a fully-managed Kafka service is used. For example see the Confluent
Cloud documentation:
https://docs.confluent.io/cloud/current/clusters/broker-config.html#enable-automatic-topic-creation
IMO, when a table is created, the corresponding Kafka topic should be
explicitly created.
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