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https://issues.apache.org/jira/browse/KAFKA-12780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17344131#comment-17344131
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A. Sophie Blee-Goldman commented on KAFKA-12780:
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Hey [~iirekm2]
This exception means there's a discrepancy between the tasks that a client is
reporting based on its current assignment + local state on disk, and the tasks
that the assignor has parsed from the current topology. It means something has
gone wrong with your app, but there can be a few different causes. Given your
description of hitting this "every second or third time [you] rerun the
application", my best guess is that you may have an application that is
generating at least some subtopologies in a random order. This has been
reported before by [someone who was using Sprint
Boot|https://issues.apache.org/jira/browse/KAFKA-5882?focusedCommentId=16554237&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16554237]
– is it possible your app is experiencing the same issue? You can print out
the topology on startup and compare it across reruns to check.
> java.lang.IllegalStateException: Tried to lookup lag for unknown task 2_0
> -------------------------------------------------------------------------
>
> Key: KAFKA-12780
> URL: https://issues.apache.org/jira/browse/KAFKA-12780
> Project: Kafka
> Issue Type: Bug
> Reporter: Ireneusz Matysiewicz
> Priority: Major
>
> Whenever I try doing a stream.join(table, joiner), I get the following error
> ever second or third time I rerun the application.
> Kafka Streams version: 2.8.0
> The default stores config is used (simply writing to /tmp directory).
> Changing state.dir to other location doesn't help.
>
> {code:java}
> 22:36:35.205 [xxxxxx-94ada1ab-8573-4245-9742-3322e412598b-StreamThread-1]
> WARN o.a.k.s.p.i.assignment.ClientState - Task 1_22 had endOffsetSum=3
> smaller than offsetSum=13 on member 94ada1ab-8573-4245-9742-3322e412598b.
> This probably means the task is corrupted, which in turn indicates that it
> will need to restore from scratch if it gets assigned. The assignor will
> de-prioritize returning this task to this member in the hopes that some other
> member may be able to re-use its state.22:36:35.205
> [xxxxxx-94ada1ab-8573-4245-9742-3322e412598b-StreamThread-1] WARN
> o.a.k.s.p.i.assignment.ClientState - Task 1_22 had endOffsetSum=3 smaller
> than offsetSum=13 on member 94ada1ab-8573-4245-9742-3322e412598b. This
> probably means the task is corrupted, which in turn indicates that it will
> need to restore from scratch if it gets assigned. The assignor will
> de-prioritize returning this task to this member in the hopes that some other
> member may be able to re-use its state.22:36:35.224
> [xxxxxx-94ada1ab-8573-4245-9742-3322e412598b-StreamThread-1] ERROR
> o.apache.kafka.streams.KafkaStreams - stream-client
> [xxxxxx-94ada1ab-8573-4245-9742-3322e412598b] Encountered the following
> exception during processing and the registered exception handler opted to
> SHUTDOWN_CLIENT. The streams client is going to shut down now.
> java.lang.IllegalStateException: Tried to lookup lag for unknown task 2_0 at
> org.apache.kafka.streams.processor.internals.assignment.ClientState.lagFor(ClientState.java:318)
> at
> java.base/java.util.Comparator.lambda$comparingLong$6043328a$1(Comparator.java:511)
> at
> java.base/java.util.Comparator.lambda$thenComparing$36697e65$1(Comparator.java:216)
> at java.base/java.util.TreeMap.put(TreeMap.java:550) at
> java.base/java.util.TreeSet.add(TreeSet.java:255) at
> java.base/java.util.AbstractCollection.addAll(AbstractCollection.java:352) at
> java.base/java.util.TreeSet.addAll(TreeSet.java:312) at
> org.apache.kafka.streams.processor.internals.StreamsPartitionAssignor.getPreviousTasksByLag(StreamsPartitionAssignor.java:1205)
> at
> org.apache.kafka.streams.processor.internals.StreamsPartitionAssignor.assignTasksToThreads(StreamsPartitionAssignor.java:1119)
> at
> org.apache.kafka.streams.processor.internals.StreamsPartitionAssignor.computeNewAssignment(StreamsPartitionAssignor.java:845)
> at
> org.apache.kafka.streams.processor.internals.StreamsPartitionAssignor.assign(StreamsPartitionAssignor.java:405)
> at
> org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.performAssignment(ConsumerCoordinator.java:589)
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator.onJoinLeader(AbstractCoordinator.java:691)
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator.access$1000(AbstractCoordinator.java:111)
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator$JoinGroupResponseHandler.handle(AbstractCoordinator.java:597)
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator$JoinGroupResponseHandler.handle(AbstractCoordinator.java:560)
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:1177)
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:1152)
> at
> org.apache.kafka.clients.consumer.internals.RequestFuture$1.onSuccess(RequestFuture.java:206)
> at
> org.apache.kafka.clients.consumer.internals.RequestFuture.fireSuccess(RequestFuture.java:169)
> at
> org.apache.kafka.clients.consumer.internals.RequestFuture.complete(RequestFuture.java:129)
> at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient$RequestFutureCompletionHandler.fireCompletion(ConsumerNetworkClient.java:602)
> at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.firePendingCompletedRequests(ConsumerNetworkClient.java:412)
> at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:297)
> at
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:236)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.pollForFetches(KafkaConsumer.java:1296)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1237)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1210)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.pollRequests(StreamThread.java:925)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.pollPhase(StreamThread.java:885)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:720)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:583)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:556){code}
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