[FLINK-28758] FlinkKafkaConsumer fails to stop with savepoint

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.15.0, 1.17.0, 1.16.1
• Fix Version/s: kafka-3.0.1, kafka-3.1.0
• Component/s: Connectors / Kafka
• Labels: pull-request-available

Environment

Flink version:1.15.0
deploy mode :K8s applicaiton Mode. local mini cluster also have this problem.
Kafka Connector : use Kafka SourceFunction . No new Api.

• Assignee: Piotr Nowojski
• Reporter: hjw
• Created: 01/Aug/22 05:54
• Updated: 13/Nov/23 01:42
• Resolved: 15/Sep/23 09:28

Description

I post a stop with savepoint request to Flink Job throught rest api.
A Error happened in Kafka connector close.
The job will enter restarting .
It is successful to use savepoint command alone.

13:33:42.857 [Kafka Fetcher for Source: nlp-kafka-source -> nlp-clean (1/1)#0] DEBUG org.apache.kafka.clients.consumer.KafkaConsumer - [Consumer clientId=consumer-hjw-3, groupId=hjw] Kafka consumer has been closed
13:33:42.857 [Kafka Fetcher for Source: cpp-kafka-source -> cpp-clean (1/1)#0] INFO org.apache.kafka.common.utils.AppInfoParser - App info kafka.consumer for consumer-hjw-4 unregistered
13:33:42.857 [Kafka Fetcher for Source: cpp-kafka-source -> cpp-clean (1/1)#0] DEBUG org.apache.kafka.clients.consumer.KafkaConsumer - [Consumer clientId=consumer-hjw-4, groupId=hjw] Kafka consumer has been closed
13:33:42.860 [Source: nlp-kafka-source -> nlp-clean (1/1)#0] DEBUG org.apache.flink.streaming.runtime.tasks.StreamTask - Cleanup StreamTask (operators closed: false, cancelled: false)
13:33:42.860 [jobmanager-io-thread-4] INFO org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Decline checkpoint 5 by task eeefcb27475446241861ad8db3f33144 of job d6fed247feab1c0bcc1b0dcc2cfb4736 at 79edfa88-ccc3-4140-b0e1-7ce8a7f8669f @ 127.0.0.1 (dataPort=-1).
org.apache.flink.util.SerializedThrowable: Task name with subtask : Source: nlp-kafka-source -> nlp-clean (1/1)#0 Failure reason: Task has failed.
 at org.apache.flink.runtime.taskmanager.Task.declineCheckpoint(Task.java:1388)
 at org.apache.flink.runtime.taskmanager.Task.lambda$triggerCheckpointBarrier$3(Task.java:1331)
 at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:822)
 at java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:797)
 at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
 at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
 at org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:343)
Caused by: org.apache.flink.util.SerializedThrowable: org.apache.flink.streaming.connectors.kafka.internals.Handover$ClosedException
 at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
 at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
 at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:943)
 at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
 ... 3 common frames omitted
Caused by: org.apache.flink.util.SerializedThrowable: null
 at org.apache.flink.streaming.connectors.kafka.internals.Handover.close(Handover.java:177)
 at org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.cancel(KafkaFetcher.java:164)
 at org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.cancel(FlinkKafkaConsumerBase.java:945)
 at org.apache.flink.streaming.api.operators.StreamSource.stop(StreamSource.java:128)
 at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.stopOperatorForStopWithSavepoint(SourceStreamTask.java:305)
 at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.lambda$triggerStopWithSavepointAsync$1(SourceStreamTask.java:285)
 at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.runThrowing(StreamTaskActionExecutor.java:93)
 at org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:90)
 at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMailsWhenDefaultActionUnavailable(MailboxProcessor.java:338)
 at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:324)
 at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:201)
 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:748)
13:34:00.925 [flink-akka.actor.default-dispatcher-21] DEBUG org.apache.flink.runtime.jobmaster.JobMaster - Trigger heartbeat request.
13:34:00.926 [flink-akka.actor.default-dispatcher-22] DEBUG org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Trigger heartbeat request.
13:34:00.926 [flink-akka.actor.default-dispatcher-21] DEBUG org.apache.flink.runtime.taskexecutor.TaskExecutor - Received heartbeat request from 85d44174e17281984d28699c42e3eed6.

Issue Links

• is caused by: FLINK-23532 Unify stop-with-savepoint w drain and w/o drain
• is related to: FLINK-23527 Clarify `SourceFunction#cancel()` contract about interrupting
• links to: GitHub Pull Request #48
• links to: GitHub Pull Request #49