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From Aravind Dongara <adong...@yahoo.com.INVALID>
Subject Re: KafkaStreams: ProducerFencedException causing StreamThread death
Date Sat, 29 Sep 2018 00:22:48 GMT
Hi Guozhang

Thanks for your reply.
We are using Kafka 1.1.1

Thanks
Aravind


> On Sep 28, 2018, at 4:45 PM, Guozhang Wang <wangguoz@gmail.com> wrote:
> 
> Hello Aravind,
> 
> Which version of Kafka are you currently using? What you described seems to
> be fixed in the latest version already, so I want to check if you are using
> an older version and if yes, what's the best way to work around it.
> 
> 
> Guozhang
> 
> 
> On Thu, Sep 27, 2018 at 12:54 PM, Aravind Dongara <
> adongara@yahoo.com.invalid> wrote:
> 
>> 
>> During a rebalance triggered by kafka-coordinator-heartbeat-thread losing
>> connection to ‘Group coordinator’, we noticed that a stream thread is
>> shutting down when it catches a ProducerFencedExcpetion while flushing the
>> state store.
>> This also causes the stream-state on that node to be stuck in
>> ‘REBALANCING’ state, even though the partitions have been rebalanced to
>> other threads across nodes.
>> During rebalance there seems to be a race condition between flushState on
>> one node vs ProducerId creation on other node for the same partition. If
>> the flushState is slower than the other it encounters
>> ProducerFencedException.
>> 
>> It would be nice if Kafka streams can handle this exception gracefully and
>> not shutdown the thread, so that we don’t end up with uneven number of
>> threads across nodes.
>> Can you guys please suggest any work arounds for this situation?
>> 
>> Thanks
>> Aravind
>> 
>> 
>> [2018-09-26T15:39:54,662Z]  [ERROR]  [kafka-producer-network-thread |
>> upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-
>> 0a4b8d6753a2-StreamThread-16-0_55-producer]  [o.a.k.c.producer.internals.Sender]
>> [Producer clientId=upsert-merger-stream-oa43-1-53c3713a-443f-4b89-
>> a27a-0a4b8d6753a2-StreamThread-16-0_55-producer,
>> transactionalId=upsert-merger-stream-oa43-1-0_55] Aborting producer
>> batches due to fatal error
>> [2018-09-26T15:39:54,665Z]  [ERROR]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]  [o.a.k.s.p.i.ProcessorStateManager]
>> task [0_55] Failed to flush state store upsert-store:
>> org.apache.kafka.streams.errors.StreamsException: task [0_55] Abort
>> sending since an error caught with a previous record (key
>> de796abe-d174-40ee-99fb-36695447402e value [B@79f4a0fd timestamp
>> 1537976392104) to topic upsert-merger-stream-oa43-1-upsert-store-changelog
>> due to Cannot perform send because at least one previous transactional or
>> idempotent request has failed with errors.
>>        at org.apache.kafka.streams.processor.internals.
>> RecordCollectorImpl.send(RecordCollectorImpl.java:197)
>>        at org.apache.kafka.streams.state.internals.
>> StoreChangeLogger.logChange(StoreChangeLogger.java:59)
>>        at org.apache.kafka.streams.state.internals.
>> ChangeLoggingKeyValueBytesStore.put(ChangeLoggingKeyValueBytesStor
>> e.java:69)
>>        at org.apache.kafka.streams.state.internals.
>> ChangeLoggingKeyValueBytesStore.put(ChangeLoggingKeyValueBytesStor
>> e.java:29)
>>        at org.apache.kafka.streams.state.internals.CachingKeyValueStore.
>> putAndMaybeForward(CachingKeyValueStore.java:105)
>>        at org.apache.kafka.streams.state.internals.
>> CachingKeyValueStore.access$000(CachingKeyValueStore.java:38)
>>        at org.apache.kafka.streams.state.internals.
>> CachingKeyValueStore$1.apply(CachingKeyValueStore.java:83)
>>        at org.apache.kafka.streams.state.internals.NamedCache.
>> flush(NamedCache.java:142)
>>        at org.apache.kafka.streams.state.internals.NamedCache.
>> flush(NamedCache.java:100)
>>        at org.apache.kafka.streams.state.internals.ThreadCache.
>> flush(ThreadCache.java:127)
>>        at org.apache.kafka.streams.state.internals.
>> CachingKeyValueStore.flush(CachingKeyValueStore.java:123)
>>        at org.apache.kafka.streams.state.internals.
>> InnerMeteredKeyValueStore.flush(InnerMeteredKeyValueStore.java:267)
>>        at org.apache.kafka.streams.state.internals.
>> MeteredKeyValueBytesStore.flush(MeteredKeyValueBytesStore.java:149)
>>        at org.apache.kafka.streams.processor.internals.
>> ProcessorStateManager.flush(ProcessorStateManager.java:243)
>>        at org.apache.kafka.streams.processor.internals.
>> AbstractTask.flushState(AbstractTask.java:195)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.flushState(StreamTask.java:339)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask$1.run(StreamTask.java:312)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:211)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.commit(StreamTask.java:307)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.suspend(StreamTask.java:440)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.suspend(StreamTask.java:422)
>>        at org.apache.kafka.streams.processor.internals.
>> AssignedTasks.suspendTasks(AssignedTasks.java:182)
>>        at org.apache.kafka.streams.processor.internals.
>> AssignedTasks.suspend(AssignedTasks.java:147)
>>        at org.apache.kafka.streams.processor.internals.TaskManager.
>> suspendTasksAndState(TaskManager.java:242)
>>        at org.apache.kafka.streams.processor.internals.StreamThread$
>> RebalanceListener.onPartitionsRevoked(StreamThread.java:291)
>>        at org.apache.kafka.clients.consumer.internals.
>> ConsumerCoordinator.onJoinPrepare(ConsumerCoordinator.java:414)
>>        at org.apache.kafka.clients.consumer.internals.
>> AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:359)
>>        at org.apache.kafka.clients.consumer.internals.
>> AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:316)
>>        at org.apache.kafka.clients.consumer.internals.
>> ConsumerCoordinator.poll(ConsumerCoordinator.java:290)
>>        at org.apache.kafka.clients.consumer.KafkaConsumer.
>> pollOnce(KafkaConsumer.java:1149)
>>        at org.apache.kafka.clients.consumer.KafkaConsumer.poll(
>> KafkaConsumer.java:1115)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.pollRequests(StreamThread.java:831)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.runOnce(StreamThread.java:788)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.runLoop(StreamThread.java:749)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.run(StreamThread.java:719)
>> Caused by: org.apache.kafka.common.KafkaException: Cannot perform send
>> because at least one previous transactional or idempotent request has
>> failed with errors.
>>        at org.apache.kafka.clients.producer.internals.TransactionManager.
>> failIfNotReadyForSend(TransactionManager.java:279)
>>        at org.apache.kafka.clients.producer.internals.TransactionManager.
>> maybeAddPartitionToTransaction(TransactionManager.java:264)
>>        at org.apache.kafka.clients.producer.KafkaProducer.doSend(
>> KafkaProducer.java:828)
>>        at org.apache.kafka.clients.producer.KafkaProducer.send(
>> KafkaProducer.java:784)
>>        at org.apache.kafka.streams.processor.internals.
>> RecordCollectorImpl.send(RecordCollectorImpl.java:153)
>>        ... 34 common frames omitted
>> Caused by: org.apache.kafka.common.errors.ProducerFencedException:
>> Producer attempted an operation with an old epoch. Either there is a newer
>> producer with the same transactionalId, or the producer's transaction has
>> been expired by the broker.
>> [2018-09-26T15:39:54,665Z]  [ERROR]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]  [o.a.k.s.p.i.AssignedStreamsTasks]
>> stream-thread [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> Suspending stream task 0_55 failed due to the following error:
>> org.apache.kafka.streams.errors.ProcessorStateException: task [0_55]
>> Failed to flush state store upsert-store
>>        at org.apache.kafka.streams.processor.internals.
>> ProcessorStateManager.flush(ProcessorStateManager.java:246)
>>        at org.apache.kafka.streams.processor.internals.
>> AbstractTask.flushState(AbstractTask.java:195)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.flushState(StreamTask.java:339)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask$1.run(StreamTask.java:312)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:211)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.commit(StreamTask.java:307)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.suspend(StreamTask.java:440)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.suspend(StreamTask.java:422)
>>        at org.apache.kafka.streams.processor.internals.
>> AssignedTasks.suspendTasks(AssignedTasks.java:182)
>>        at org.apache.kafka.streams.processor.internals.
>> AssignedTasks.suspend(AssignedTasks.java:147)
>>        at org.apache.kafka.streams.processor.internals.TaskManager.
>> suspendTasksAndState(TaskManager.java:242)
>>        at org.apache.kafka.streams.processor.internals.StreamThread$
>> RebalanceListener.onPartitionsRevoked(StreamThread.java:291)
>>        at org.apache.kafka.clients.consumer.internals.
>> ConsumerCoordinator.onJoinPrepare(ConsumerCoordinator.java:414)
>>        at org.apache.kafka.clients.consumer.internals.
>> AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:359)
>>        at org.apache.kafka.clients.consumer.internals.
>> AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:316)
>>        at org.apache.kafka.clients.consumer.internals.
>> ConsumerCoordinator.poll(ConsumerCoordinator.java:290)
>>        at org.apache.kafka.clients.consumer.KafkaConsumer.
>> pollOnce(KafkaConsumer.java:1149)
>>        at org.apache.kafka.clients.consumer.KafkaConsumer.poll(
>> KafkaConsumer.java:1115)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.pollRequests(StreamThread.java:831)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.runOnce(StreamThread.java:788)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.runLoop(StreamThread.java:749)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.run(StreamThread.java:719)
>> Caused by: org.apache.kafka.streams.errors.StreamsException: task [0_55]
>> Abort sending since an error caught with a previous record (key
>> de796abe-d174-40ee-99fb-36695447402e value [B@79f4a0fd timestamp
>> 1537976392104) to topic upsert-merger-stream-oa43-1-upsert-store-changelog
>> due to Cannot perform send because at least one previous transactional or
>> idempotent request has failed with errors.
>>        at org.apache.kafka.streams.processor.internals.
>> RecordCollectorImpl.send(RecordCollectorImpl.java:197)
>>        at org.apache.kafka.streams.state.internals.
>> StoreChangeLogger.logChange(StoreChangeLogger.java:59)
>>        at org.apache.kafka.streams.state.internals.
>> ChangeLoggingKeyValueBytesStore.put(ChangeLoggingKeyValueBytesStor
>> e.java:69)
>>        at org.apache.kafka.streams.state.internals.
>> ChangeLoggingKeyValueBytesStore.put(ChangeLoggingKeyValueBytesStor
>> e.java:29)
>>        at org.apache.kafka.streams.state.internals.CachingKeyValueStore.
>> putAndMaybeForward(CachingKeyValueStore.java:105)
>>        at org.apache.kafka.streams.state.internals.
>> CachingKeyValueStore.access$000(CachingKeyValueStore.java:38)
>>        at org.apache.kafka.streams.state.internals.
>> CachingKeyValueStore$1.apply(CachingKeyValueStore.java:83)
>>        at org.apache.kafka.streams.state.internals.NamedCache.
>> flush(NamedCache.java:142)
>>        at org.apache.kafka.streams.state.internals.NamedCache.
>> flush(NamedCache.java:100)
>>        at org.apache.kafka.streams.state.internals.ThreadCache.
>> flush(ThreadCache.java:127)
>>        at org.apache.kafka.streams.state.internals.
>> CachingKeyValueStore.flush(CachingKeyValueStore.java:123)
>>        at org.apache.kafka.streams.state.internals.
>> InnerMeteredKeyValueStore.flush(InnerMeteredKeyValueStore.java:267)
>>        at org.apache.kafka.streams.state.internals.
>> MeteredKeyValueBytesStore.flush(MeteredKeyValueBytesStore.java:149)
>>        at org.apache.kafka.streams.processor.internals.
>> ProcessorStateManager.flush(ProcessorStateManager.java:243)
>>        ... 21 common frames omitted
>> Caused by: org.apache.kafka.common.KafkaException: Cannot perform send
>> because at least one previous transactional or idempotent request has
>> failed with errors.
>>        at org.apache.kafka.clients.producer.internals.TransactionManager.
>> failIfNotReadyForSend(TransactionManager.java:279)
>>        at org.apache.kafka.clients.producer.internals.TransactionManager.
>> maybeAddPartitionToTransaction(TransactionManager.java:264)
>>        at org.apache.kafka.clients.producer.KafkaProducer.doSend(
>> KafkaProducer.java:828)
>>        at org.apache.kafka.clients.producer.KafkaProducer.send(
>> KafkaProducer.java:784)
>>        at org.apache.kafka.streams.processor.internals.
>> RecordCollectorImpl.send(RecordCollectorImpl.java:153)
>>        ... 34 common frames omitted
>> Caused by: org.apache.kafka.common.errors.ProducerFencedException:
>> Producer attempted an operation with an old epoch. Either there is a newer
>> producer with the same transactionalId, or the producer's transaction has
>> been expired by the broker.
>> [2018-09-26T15:39:54,666Z]  [WARN ]  [kafka-producer-network-thread |
>> upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-
>> 0a4b8d6753a2-StreamThread-16-0_55-producer]  [o.a.k.s.p.i.RecordCollectorImpl]
>> task [0_55] Error sending record (key 5a07e803-9323-457c-8e1d-29c0b0bc0fa9
>> value [0, 0, 1, 102, 22, -119, 88, -32, 0, 0, 0, -95, 97, 112, 112, 100,
>> 121, 110, 97, 109, 105, 99, 115, 95, 101, 101, 101, 49, 100, 52, 102, 56,
>> 45, 54, 55, 97, 50, 45, 52, 57, 56, 101, 45, 97, 55, 50, 53, 45, 52, 55,
>> 101, 50, 57, 56, 48, 51, 56, 50, 50, 101, -62, -79, 98, 105, 122, 95, 116,
>> 120, 110, 95, 118, 49, -62, -79, 57, 54, 53, 49, 48, 100, 50, 52, -62, -79,
>> 48, -62, -79, 115, 101, 103, 109, 101, 110, 116, 115, -62, -79, 114, 101,
>> 113, 117, 101, 115, 116, 71, 85, 73, 68, -62, -79, 53, 97, 48, 55, 101, 56,
>> 48, 51, 45, 57, 51, 50, 51, 45, 52, 53, 55, 99, 45, 56, 101, 49, 100, 45,
>> 50, 57, 99, 48, 98, 48, 98, 99, 48, 102, 97, 57, -62, -79, 102, 97, 108,
>> 115, 101, -62, -79, 116, 114, 117, 101, -62, -79, 102, 97, 108, 115, 101,
>> -62, -79, 102, 97, 108, 115, 101, 123, 10, 34, 101, 118, 101, 110, 116, 84,
>> 105, 109, 101, 115, 116, 97, 109, 112, 34, 58, 34, 50, 48, 49, 56, 45, 48,
>> 57, 45, 50, 54, 84, 49, 53, 58, 51, 57, 58, 52, 52, 46, 49, 50, 50, 43, 48,
>> 48, 48, 48, 34, 44, 10, 34, 115, 101, 103, 109, 101, 110, 116, 115, 34, 58,
>> 91, 123, 10, 34, 115, 101, 103, 109, 101, 110, 116, 84, 105, 109, 101, 115,
>> 116, 97, 109, 112, 34, 58, 34, 50, 48, 49, 56, 45, 48, 57, 45, 50, 54, 84,
>> 49, 53, 58, 51, 57, 58, 52, 52, 46, 49, 50, 50, 43, 48, 48, 48, 48, 34, 44,
>> 10, 34, 117, 115, 101, 114, 68, 97, 116, 97, 34, 58, 123, 10, 34, 65, 99,
>> 99, 111, 117, 110, 116, 78, 97, 109, 101, 34, 58, 34, 112, 114, 105, 118,
>> 97, 108, 105, 97, 118, 101, 110, 116, 97, 100, 105, 114, 101, 99, 116, 97,
>> 115, 97, 45, 97, 48, 113, 51, 52, 48, 48, 48, 48, 48, 100, 106, 115, 118,
>> 52, 101, 97, 100, 34, 44, 34, 69, 115, 73, 110, 100, 101, 120, 67, 108,
>> 117, 115, 116, 101, 114, 34, 58, 34, 112, 114, 100, 52, 52, 45, 49, 50, 34,
>> 10, 125, 44, 10, 34, 116, 105, 101, 114, 34, 58, 34, 97, 112, 105, 95, 112,
>> 114, 100, 52, 53, 50, 34, 44, 34, 116, 105, 101, 114, 73, 100, 34, 58, 34,
>> 51, 57, 57, 52, 57, 50, 55, 49, 34, 44, 34, 110, 111, 100, 101, 34, 58, 34,
>> 97, 112, 105, 118, 49, 45, 48, 49, 52, 45, 112, 114, 100, 52, 53, 50, 34,
>> 44, 34, 110, 111, 100, 101, 73, 100, 34, 58, 34, 49, 57, 52, 54, 57, 54,
>> 53, 55, 48, 34, 44, 34, 114, 101, 113, 117, 101, 115, 116, 69, 120, 112,
>> 101, 114, 105, 101, 110, 99, 101, 34, 58, 34, 78, 79, 82, 77, 65, 76, 34,
>> 44, 34, 101, 110, 116, 114, 121, 80, 111, 105, 110, 116, 34, 58, 116, 114,
>> 117, 101, 44, 34, 117, 110, 105, 113, 117, 101, 83, 101, 103, 109, 101,
>> 110, 116, 73, 100, 34, 58, 53, 44, 34, 116, 114, 97, 110, 115, 97, 99, 116,
>> 105, 111, 110, 84, 105, 109, 101, 34, 58, 49, 49, 10, 125, 93, 44, 10, 34,
>> 97, 112, 112, 108, 105, 99, 97, 116, 105, 111, 110, 34, 58, 34, 112, 114,
>> 100, 52, 52, 45, 97, 110, 97, 108, 121, 116, 105, 99, 115, 34, 44, 34, 97,
>> 112, 112, 108, 105, 99, 97, 116, 105, 111, 110, 73, 100, 34, 58, 34, 53,
>> 49, 48, 54, 34, 44, 34, 114, 101, 113, 117, 101, 115, 116, 71, 85, 73, 68,
>> 34, 58, 34, 53, 97, 48, 55, 101, 56, 48, 51, 45, 57, 51, 50, 51, 45, 52,
>> 53, 55, 99, 45, 56, 101, 49, 100, 45, 50, 57, 99, 48, 98, 48, 98, 99, 48,
>> 102, 97, 57, 34, 44, 34, 116, 114, 97, 110, 115, 97, 99, 116, 105, 111,
>> 110, 78, 97, 109, 101, 34, 58, 34, 97, 112, 105, 95, 118, 51, 46, 92, 47,
>> 118, 51, 92, 47, 101, 118, 101, 110, 116, 115, 92, 47, 66, 114, 111, 119,
>> 115, 101, 114, 82, 101, 99, 111, 114, 100, 92, 47, 101, 118, 101, 110, 116,
>> 34, 44, 34, 116, 114, 97, 110, 115, 97, 99, 116, 105, 111, 110, 73, 100,
>> 34, 58, 56, 48, 50, 54, 50, 56, 10, 125] timestamp 1537976391822) to topic
>> upsert-merger-stream-oa43-1-upsert-store-changelog due to Producer
>> attempted an operation with an old epoch. Either there is a newer producer
>> with the same transactionalId, or the producer's transaction has been
>> expired by the broker.; No more records will be sent and no more offsets
>> will be recorded for this task.
>> 
>> 
>> [2018-09-26T15:39:54,784Z]  [ERROR]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]  [o.a.k.s.p.i.AssignedStreamsTasks]
>> stream-thread [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> After suspending failed, closing the same stream task 0_55 failed again due
>> to the following error:
>> org.apache.kafka.common.KafkaException: Cannot execute transactional
>> method because we are in an error state
>>        at org.apache.kafka.clients.producer.internals.TransactionManager.
>> maybeFailWithError(TransactionManager.java:784)
>>        at org.apache.kafka.clients.producer.internals.
>> TransactionManager.beginAbort(TransactionManager.java:229)
>>        at org.apache.kafka.clients.producer.KafkaProducer.
>> abortTransaction(KafkaProducer.java:660)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.closeSuspended(StreamTask.java:493)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamTask.close(StreamTask.java:553)
>>        at org.apache.kafka.streams.processor.internals.
>> AssignedTasks.suspendTasks(AssignedTasks.java:192)
>>        at org.apache.kafka.streams.processor.internals.
>> AssignedTasks.suspend(AssignedTasks.java:147)
>>        at org.apache.kafka.streams.processor.internals.TaskManager.
>> suspendTasksAndState(TaskManager.java:242)
>>        at org.apache.kafka.streams.processor.internals.StreamThread$
>> RebalanceListener.onPartitionsRevoked(StreamThread.java:291)
>>        at org.apache.kafka.clients.consumer.internals.
>> ConsumerCoordinator.onJoinPrepare(ConsumerCoordinator.java:414)
>>        at org.apache.kafka.clients.consumer.internals.
>> AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:359)
>>        at org.apache.kafka.clients.consumer.internals.
>> AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:316)
>>        at org.apache.kafka.clients.consumer.internals.
>> ConsumerCoordinator.poll(ConsumerCoordinator.java:290)
>>        at org.apache.kafka.clients.consumer.KafkaConsumer.
>> pollOnce(KafkaConsumer.java:1149)
>>        at org.apache.kafka.clients.consumer.KafkaConsumer.poll(
>> KafkaConsumer.java:1115)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.pollRequests(StreamThread.java:831)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.runOnce(StreamThread.java:788)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.runLoop(StreamThread.java:749)
>>        at org.apache.kafka.streams.processor.internals.
>> StreamThread.run(StreamThread.java:719)
>> Caused by: org.apache.kafka.common.errors.ProducerFencedException:
>> Producer attempted an operation with an old epoch. Either there is a newer
>> producer with the same transactionalId, or the producer's transaction has
>> been expired by the broker.
>> 
>> 
>> [2018-09-26T15:39:54,801Z]  [ERROR]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> [o.a.k.s.p.internals.StreamThread]  stream-thread
>> [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> Error caught during partition revocation, will abort the current process
>> and re-throw at the end of rebalance: stream-thread
>> [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> failed to suspend stream tasks
>> [2018-09-26T15:39:54,801Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> [o.a.k.s.p.internals.StreamThread]  stream-thread
>> [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> partition revocation took 156 ms.
>>        suspended active tasks: [0_55]
>>        suspended standby tasks: [0_50]
>> [2018-09-26T15:39:54,801Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]  [o.a.k.c.c.i.AbstractCoordinator]
>> [Consumer clientId=upsert-merger-stream-oa43-1-53c3713a-443f-4b89-
>> a27a-0a4b8d6753a2-StreamThread-16-consumer, groupId=upsert-merger-stream-oa43-1]
>> (Re-)joining group
>> 
>> [2018-09-26T15:39:56,277Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]  [o.a.k.c.c.i.AbstractCoordinator]
>> [Consumer clientId=upsert-merger-stream-oa43-1-53c3713a-443f-4b89-
>> a27a-0a4b8d6753a2-StreamThread-16-consumer, groupId=upsert-merger-stream-oa43-1]
>> Successfully joined group with generation 113
>> 
>> [2018-09-26T15:39:56,278Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]  [o.a.k.c.c.i.ConsumerCoordinator]
>> [Consumer clientId=upsert-merger-stream-oa43-1-53c3713a-443f-4b89-
>> a27a-0a4b8d6753a2-StreamThread-16-consumer, groupId=upsert-merger-stream-oa43-1]
>> Setting newly assigned partitions [oa43-1-event-upsert-48]
>> [2018-09-26T15:39:56,278Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-15]  [o.a.k.c.c.i.ConsumerCoordinator]
>> [Consumer clientId=upsert-merger-stream-oa43-1-53c3713a-443f-4b89-
>> a27a-0a4b8d6753a2-StreamThread-15-consumer, groupId=upsert-merger-stream-oa43-1]
>> Setting newly assigned partitions [oa43-1-event-upsert-65]
>> [2018-09-26T15:39:56,278Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> [o.a.k.s.p.internals.StreamThread]  stream-thread
>> [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> State transition from PARTITIONS_REVOKED to PARTITIONS_ASSIGNED
>> 
>> [2018-09-26T15:39:56,495Z]  [INFO ]  [kafka-producer-network-thread |
>> upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-
>> 0a4b8d6753a2-StreamThread-16-0_48-producer]  [o.a.k.c.p.i.TransactionManager]
>> [Producer clientId=upsert-merger-stream-oa43-1-53c3713a-443f-4b89-
>> a27a-0a4b8d6753a2-StreamThread-16-0_48-producer,
>> transactionalId=upsert-merger-stream-oa43-1-0_48] ProducerId set to 13
>> with epoch 81
>> [2018-09-26T15:39:56,495Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> [o.a.k.s.p.internals.StreamThread]  stream-thread
>> [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> partition assignment took 217 ms.
>>        current active tasks: [0_48]
>>        current standby tasks: [0_49]
>>        previous active tasks: [0_55]
>> 
>> [2018-09-26T15:39:56,496Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> [o.a.k.s.p.internals.StreamThread]  stream-thread
>> [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> State transition from PARTITIONS_ASSIGNED to PENDING_SHUTDOWN
>> [2018-09-26T15:39:56,496Z]  [INFO ]  [upsert-merger-stream-oa43-1-
>> 53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> [o.a.k.s.p.internals.StreamThread]  stream-thread
>> [upsert-merger-stream-oa43-1-53c3713a-443f-4b89-a27a-0a4b8d6753a2-StreamThread-16]
>> Shutting down
>> 
>> 
>> 
>> 
>> 
>> 
> 
> 
> -- 
> -- Guozhang


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