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https://issues.apache.org/jira/browse/KAFKA-9659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058298#comment-17058298
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ASF GitHub Bot commented on KAFKA-9659:
---------------------------------------

guozhangwang commented on pull request #8269: KAFKA-9659: Add more log4j when 
updating static member mappings
URL: https://github.com/apache/kafka/pull/8269
 
 
   
 
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> Kafka Streams / Consumer configured for static membership fails on "fatal 
> exception: group.instance.id gets fenced"
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-9659
>                 URL: https://issues.apache.org/jira/browse/KAFKA-9659
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 2.5.0
>            Reporter: Rohan Desai
>            Priority: Major
>         Attachments: ksql-1.logs
>
>
> I'm running a KSQL query, which underneath is built into a Kafka Streams 
> application. The application has been running without issue for a few days, 
> until today, when all the streams threads exited with: 
>  
>  
> {{[ERROR] 2020-03-05 00:57:58,776 
> [_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.AbstractCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5] 
> Received fatal exception: group.instance.id gets fenced}}
> {{[ERROR] 2020-03-05 00:57:58,776 
> [_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.AbstractCoordinator onFailure - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5] 
> Caught fenced group.instance.id Optional[ksql-1-2] error in heartbeat thread}}
> {{[ERROR] 2020-03-05 00:57:58,776 
> [_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2]
>  org.apache.kafka.streams.processor.internals.StreamThread run - 
> stream-thread 
> [_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2]
>  Encountered the following unexpected Kafka exception during processing, this 
> usually indicate Streams internal errors:}}
>  \{{ org.apache.kafka.common.errors.FencedInstanceIdException: The broker 
> rejected this static consumer since another consumer with the same 
> group.instance.id has registered with a different member.id.}}{{[INFO] 
> 2020-03-05 00:57:58,776 
> [_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2]
>  org.apache.kafka.streams.processor.internals.StreamThread setState - 
> stream-thread 
> [_confluent-ksql-pksqlc-xm6g1query_CSAS_RATINGS_WITH_USER_AVERAGE_5-39e8046a-b6e6-44fd-8d6d-37cff78649bf-StreamThread-2]
>  State transition from RUNNING to PENDING_SHUTDOWN}}
>  
> I've attached the KSQL and Kafka Streams logs to this ticket. Here's a 
> summary for one of the streams threads (instance id `ksql-1-2`):
>  
> Around 00:56:36 the coordinator fails over from b11 to b2:
>  
> {{[INFO] 2020-03-05 00:56:36,258 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.AbstractCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Attempt to 
> heartbeat failed since coordinator 
> b11-pkc-lzxjz.us-west-2.aws.devel.cpdev.cloud:9092 (id: 2147483636 rack: 
> null) is either not started or not valid.}}
>  {{ [INFO] 2020-03-05 00:56:36,258 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.AbstractCoordinator 
> markCoordinatorUnknown - [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Group 
> coordinator b11-pkc-lzxjz.us-west-2.aws.devel.cpdev.cloud:9092 (id: 
> 2147483636 rack: null) is unavailable or invalid, will attempt rediscovery}}
>  {{ [INFO] 2020-03-05 00:56:36,270 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.AbstractCoordinator onSuccess - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Discovered 
> group coordinator b2-pkc-lzxjz.us-west-2.aws.devel.cpdev.cloud:9092 (id: 
> 2147483645 rack: null)}}
>  
> A few seconds later, offset commits start failing with an error indicating 
> the new coordinator is initializing:
>  
> {{[WARN] 2020-03-05 00:56:39,048 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.ConsumerCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Offset 
> commit failed on partition ksql-soak-ratings-json-19 at offset 1825760083: 
> The coordinator is loading and hence can't process requests.}}
>  
> Looking at ksql-1-2, it looks like it keeps trying to commit on the same 
> partition every half-second or so, which is the retry internal 
> (retry.backoff.ms), so it's probably stuck in the consumer's retry loop, e.g:
> {{[WARN] 2020-03-05 00:56:46,616 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.ConsumerCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Offset 
> commit failed on partition ksql-soak-ratings-json-19 at offset 1825760083: 
> The coordinator is loading and hence can't process requests.}}
> {{[WARN] 2020-03-05 00:56:47,175 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.ConsumerCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Offset 
> commit failed on partition ksql-soak-ratings-json-19 at offset 1825760083: 
> The coordinator is loading and hence can't process requests.}}
> {{[WARN] 2020-03-05 00:56:47,742 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.ConsumerCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Offset 
> commit failed on partition ksql-soak-ratings-json-19 at offset 1825760083: 
> The coordinator is loading and hence can't process requests.}}
>  
> This goes on until 00:56:50, when the offset commit requests fail because the 
> member ID doesn't match the coordinator expects:
>  
> {{[ERROR] 2020-03-05 00:56:50,336 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.ConsumerCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Offset 
> commit failed on partition ksql-soak-ratings-json-19 at offset 1825760083: 
> The broker rejected this static consumer since another consumer with the same 
> group.instance.id has registered with a different member.id.}}
>  {{ [ERROR] 2020-03-05 00:56:50,336 
> [_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2]
>  org.apache.kafka.clients.consumer.internals.ConsumerCoordinator handle - 
> [Consumer instanceId=ksql-1-2, 
> clientId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0-c1df9747-f353-47f1-82fd-30b97c20d038-StreamThread-2-consumer,
>  groupId=_confluent-ksql-pksqlc-xm6g1query_CTAS_RATINGS_BY_USER_0] Received 
> fatal exception: group.instance.id gets fenced}}
>  
> So maybe the offset commit is stuck in a retry loop and not picking up the 
> new member ID?



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