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https://issues.apache.org/jira/browse/KAFKA-6977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517567#comment-16517567
]
Guozhang Wang commented on KAFKA-6977:
--------------------------------------
[~efeller] if the application failed at offset 217641273, then it will not
commit any new offset larger than 217641273. So if you restart the app, the
committed offset will be definitely smaller than 217641273, and hence you will
hit this issue again. If you run a separate consumer instance, since it is a
new client it will not have any committed offset, and hence the reset policy
will kick in.
About the fix: I just realized that this exception is thrown at the consumer's
Fetcher layer, i.e. this exception will already happen even before the record
is piped into streams client, so I think if we want to better handle such CRC
exceptions it should be done inside consumer, not streams.
> Kafka Streams - java.lang.IllegalStateException: Unexpected error code 2
> while fetching data
> ---------------------------------------------------------------------------------------------
>
> Key: KAFKA-6977
> URL: https://issues.apache.org/jira/browse/KAFKA-6977
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.11.0.1
> Reporter: Eugen Feller
> Priority: Blocker
> Labels: streams
>
> We are running Kafka Streams 0.11.0.1 with Kafka Broker 0.10.2.1 and
> constantly run into the following exception:
> {code:java}
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e-StreamThread-1]
> INFO org.apache.kafka.streams.processor.internals.StreamThread -
> stream-thread
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e-StreamThread-1]
> partition assignment took 40 ms.
> current active tasks: [0_0, 0_1, 0_3, 0_4, 0_5, 0_10, 0_12, 0_13, 0_14, 0_15,
> 0_17, 0_20, 0_21, 0_23, 0_25, 0_28, 0_2, 0_6, 0_7, 0_8, 0_9, 0_11, 0_16,
> 0_18, 0_19, 0_22, 0_24, 0_26, 0_27, 0_29, 0_30, 0_31]
> current standby tasks: []
> previous active tasks: [0_0, 0_1, 0_3, 0_4, 0_5, 0_10, 0_12, 0_13, 0_14,
> 0_15, 0_17, 0_20, 0_21, 0_23, 0_25, 0_28]
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e-StreamThread-1]
> INFO org.apache.kafka.streams.processor.internals.StreamThread -
> stream-thread
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e-StreamThread-1]
> State transition from PARTITIONS_ASSIGNED to RUNNING.
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e-StreamThread-1]
> INFO org.apache.kafka.streams.KafkaStreams - stream-client
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e] State
> transition from REBALANCING to RUNNING.
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e-StreamThread-1]
> ERROR org.apache.kafka.streams.processor.internals.StreamThread -
> stream-thread
> [visitstats-mongowriter-838cf286-be42-4a49-b3ab-3a291617233e-StreamThread-1]
> Encountered the following error during processing:
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:480)
> at
> org.apache.kafka.clients.consumer.internals.Fetcher.parseCompletedFetch(Fetcher.java:886)
> at
> org.apache.kafka.clients.consumer.internals.Fetcher.fetchedRecords(Fetcher.java:525)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1086)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1043)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.pollRequests(StreamThread.java:536)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:490)
> java.lang.IllegalStateException: Unexpected error code 2 while fetching data
> at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:457)
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> INFO org.apache.kafka.streams.processor.internals.StreamThread -
> stream-thread
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> Shutting down
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> INFO org.apache.kafka.streams.processor.internals.StreamThread -
> stream-thread
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> State transition from RUNNING to PENDING_SHUTDOWN.
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> INFO org.apache.kafka.clients.producer.KafkaProducer - Closing the Kafka
> producer with timeoutMillis = 9223372036854775807 ms.
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> INFO org.apache.kafka.streams.processor.internals.StreamThread -
> stream-thread
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> Stream thread shutdown complete
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> INFO org.apache.kafka.streams.processor.internals.StreamThread -
> stream-thread
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> State transition from PENDING_SHUTDOWN to DEAD.
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> INFO org.apache.kafka.streams.KafkaStreams - stream-client
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4] State
> transition from RUNNING to ERROR.
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> WARN org.apache.kafka.streams.KafkaStreams - stream-client
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4] All stream
> threads have died. The Kafka Streams instance will be in an error state and
> should be closed.
> 6062195
> [visitstats-mongowriter-3727734b-3c2f-4775-87d2-838d72ca3bf4-StreamThread-1]
> FATAL com.zenreach.data.flows.visitstatsmongoexporter.MongoVisitStatsWriter$
> - Exiting main on uncaught exception
> java.lang.IllegalStateException: Unexpected error code 2 while fetching data
> at
> org.apache.kafka.clients.consumer.internals.Fetcher.parseCompletedFetch(Fetcher.java:886)
> at
> org.apache.kafka.clients.consumer.internals.Fetcher.fetchedRecords(Fetcher.java:525)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1086)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1043)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.pollRequests(StreamThread.java:536)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:490)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:480)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:457)
> {code}
> Looks like the error is thrown here
> [https://github.com/apache/kafka/blob/0.11.0.1/clients/src/main/java/org/apache/kafka/clients/consumer/internals/Fetcher.java#L886]
> Before giving that exception, our Kafka streams job keeps rebalancing and
> rebalancing. This is a simple job that reads data of Kafka (log compacted
> topic) and writes it back to MongoDB. It reads from a topic of 32 partitions
> and runs on AWS ECS with 32 instances (each with one stream thread). Any idea
> what could be going wrong?
> Thanks a lot.
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