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  1. Kafka
  2. KAFKA-14362

Same message consumed by two consumers in the same group after client restart

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Not A Bug
    • 2.0.1, 2.1.1, 2.2.2, 2.3.1, 2.4.1, 2.5.1, 2.6.3, 2.7.2, 2.8.2, 3.0.2, 3.1.2, 3.2.3
    • None
    • clients
    • None
    • AWS EC2 CentOS Linux 3.10.0-1160.76.1.el7.x86_64

    Description

      Trigger scenario:

      Two Kafka client application instances on separate EC2 instances with one consumer each, consuming from the same 8 partition topic using the same group ID. Duplicate consumption of a handful of messages sometimes happens right after one of the application instances has been restarted.

      Additional information:

      Messages are produced to the topic by a Kafka streams topology deployed on four application instances. I have verified that each message is only produced once by enabling debug logging in the topology flow right before producing each message to the topic.

      Example logs below are from a test run when a batch of 11 messages were consumed at 10:28:26,771 on the restarted instance and 9 of them were consumed as part of a larger batch at 10:28:23,824 on the other instance. Application shutdown was initiated at  10:27:13,086 and completed at 10:27:15,164, startup was initiated at 10:28:05,029 and completed at 10:28:37,491.

      Kafka consumer group logs after restart on the instance that was restarted:

       

      2022-11-07 10:28:23,678 INFO [consumer-0-C-1] o.a.k.c.Metadata [Metadata.java:287] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Cluster ID: B7Q1-xJpQW6EGbp35t2VnA
2022-11-07 10:28:23,678 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:853] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Discovered group coordinator b-1.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 2147483646 rack: null)
2022-11-07 10:28:23,688 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:535] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] (Re-)joining group
2022-11-07 10:28:23,736 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:1000] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Request joining group due to: need to re-join with the given member-id
2022-11-07 10:28:23,737 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:535] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] (Re-)joining group
2022-11-07 10:28:23,797 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:595] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully joined group with generation Generation{generationId=676, memberId='consumer-xms-batch-mt-callback-3-bfceacd5-99de-44d5-9a36-eae6e5d99243', protocol='cooperative-sticky'}
2022-11-07 10:28:23,835 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:761] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully synced group in generation Generation{generationId=676, memberId='consumer-xms-batch-mt-callback-3-bfceacd5-99de-44d5-9a36-eae6e5d99243', protocol='cooperative-sticky'}
2022-11-07 10:28:23,838 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:395] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Updating assignment with
        Assigned partitions:                       []
        Current owned partitions:                  []
        Added partitions (assigned - owned):       []
        Revoked partitions (owned - assigned):     []
2022-11-07 10:28:23,838 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:279] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Notifying assignor about the new Assignment(partitions=[])
2022-11-07 10:28:23,838 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:291] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Adding newly assigned partitions: 
2022-11-07 10:28:25,315 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:1000] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Request joining group due to: group is already rebalancing
2022-11-07 10:28:25,317 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:535] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] (Re-)joining group
2022-11-07 10:28:25,319 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:595] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully joined group with generation Generation{generationId=677, memberId='consumer-xms-batch-mt-callback-3-bfceacd5-99de-44d5-9a36-eae6e5d99243', protocol='cooperative-sticky'}
2022-11-07 10:28:25,327 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:761] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully synced group in generation Generation{generationId=677, memberId='consumer-xms-batch-mt-callback-3-bfceacd5-99de-44d5-9a36-eae6e5d99243', protocol='cooperative-sticky'}
2022-11-07 10:28:25,327 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:395] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Updating assignment with
        Assigned partitions:                       [messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-7]
        Current owned partitions:                  []
        Added partitions (assigned - owned):       [messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-7]
        Revoked partitions (owned - assigned):     []
2022-11-07 10:28:25,327 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:279] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Notifying assignor about the new Assignment(partitions=[messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-7])
2022-11-07 10:28:25,327 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:291] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Adding newly assigned partitions: messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-7
2022-11-07 10:28:25,365 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-4 to the committed offset FetchPosition{offset=55456568, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-2.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 2 rack: use1-az1)], epoch=55}}
2022-11-07 10:28:25,365 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-6 to the committed offset FetchPosition{offset=55817359, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-1.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 1 rack: use1-az6)], epoch=53}}
2022-11-07 10:28:25,370 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-5 to the committed offset FetchPosition{offset=55700347, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-3.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 3 rack: use1-az4)], epoch=53}}
2022-11-07 10:28:25,371 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-7 to the committed offset FetchPosition{offset=55642775, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-2.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 2 rack: use1-az1)], epoch=55}}

      Kafka consumer group logs before and after the restart on the other instance:

       

       

      2022-11-07 10:27:14,618 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:1000] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Request joining group due to: group is already rebalancing
2022-11-07 10:27:14,622 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:535] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] (Re-)joining group
2022-11-07 10:27:14,623 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:595] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully joined group with generation Generation{generationId=675, memberId='consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd', protocol='cooperative-sticky'}
2022-11-07 10:27:14,623 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:654] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Finished assignment for group at generation 675: {consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd=Assignment(partitions=[messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-7, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-3])}
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:761] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully synced group in generation Generation{generationId=675, memberId='consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd', protocol='cooperative-sticky'}
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:395] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Updating assignment with
        Assigned partitions:                       [messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-3, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-7]
        Current owned partitions:                  [messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-7]
        Added partitions (assigned - owned):       [messages.xms.mt.batch.report-3, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-1]
        Revoked partitions (owned - assigned):     []
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:279] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Notifying assignor about the new Assignment(partitions=[messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-7, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-3])
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:291] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Adding newly assigned partitions: messages.xms.mt.batch.report-3, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-1
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-3 to the committed offset FetchPosition{offset=55784517, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-1.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 1 rack: use1-az6)], epoch=53}}
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-0 to the committed offset FetchPosition{offset=55502621, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-3.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 3 rack: use1-az4)], epoch=66}}
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-2 to the committed offset FetchPosition{offset=55713067, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-3.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 3 rack: use1-az4)], epoch=54}}
2022-11-07 10:27:14,627 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:846] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Setting offset for partition messages.xms.mt.batch.report-1 to the committed offset FetchPosition{offset=55457508, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=Optional[b-2.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094 (id: 2 rack: use1-az1)], epoch=55}}
2022-11-07 10:28:23,810 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:1000] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Request joining group due to: group is already rebalancing
2022-11-07 10:28:23,813 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:535] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] (Re-)joining group
2022-11-07 10:28:23,824 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:1156] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Failing OffsetCommit request since the consumer is not part of an active group
2022-11-07 10:28:23,824 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:595] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully joined group with generation Generation
{generationId=676, memberId='consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd', protocol='cooperative-sticky'}
2022-11-07 10:28:23,825 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:654] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Finished assignment for group at generation 676: {consumer-xms-batch-mt-callback-3-bfceacd5-99de-44d5-9a36-eae6e5d99243=Assignment(partitions=[]), consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd=Assignment(partitions=[messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-3])}
2022-11-07 10:28:23,828 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:761] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully synced group in generation Generation{generationId=676, memberId='consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd', protocol='cooperative-sticky'}
2022-11-07 10:28:23,829 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:395] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Updating assignment with
        Assigned partitions:                       [messages.xms.mt.batch.report-3, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-1]
        Current owned partitions:                  [messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-3, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-7]
        Added partitions (assigned - owned):       []
        Revoked partitions (owned - assigned):     [messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-7]
2022-11-07 10:28:23,829 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:310] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Revoke previously assigned partitions messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-7
2022-11-07 10:28:23,830 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:1000] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Request joining group due to: need to revoke partitions [messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-7] as indicated by the current assignment and re-join
2022-11-07 10:28:23,830 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:279] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Notifying assignor about the new Assignment(partitions=[messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-3])
2022-11-07 10:28:23,830 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:291] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Adding newly assigned partitions: 
2022-11-07 10:28:23,830 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:535] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] (Re-)joining group
2022-11-07 10:28:23,849 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:1156] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Failing OffsetCommit request since the consumer is not part of an active group
…
Repeated 211 times
…
2022-11-07 10:28:25,342 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:1156] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Failing OffsetCommit request since the consumer is not part of an active group
2022-11-07 10:28:25,342 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:595] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully joined group with generation Generation{generationId=677, memberId='consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd', protocol='cooperative-sticky'}
2022-11-07 10:28:25,343 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:654] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Finished assignment for group at generation 677: {consumer-xms-batch-mt-callback-3-bfceacd5-99de-44d5-9a36-eae6e5d99243=Assignment(partitions=[messages.xms.mt.batch.report-4, messages.xms.mt.batch.report-5, messages.xms.mt.batch.report-6, messages.xms.mt.batch.report-7]), consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd=Assignment(partitions=[messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-3])}
2022-11-07 10:28:25,347 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [AbstractCoordinator.java:761] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Successfully synced group in generation Generation{generationId=677, memberId='consumer-xms-batch-mt-callback-3-22806c53-d6ce-4f58-b86d-65496f7a63bd', protocol='cooperative-sticky'}
2022-11-07 10:28:25,347 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:395] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Updating assignment with
        Assigned partitions:                       [messages.xms.mt.batch.report-3, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-1]
        Current owned partitions:                  [messages.xms.mt.batch.report-3, messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-1]
        Added partitions (assigned - owned):       []
        Revoked partitions (owned - assigned):     []
2022-11-07 10:28:25,347 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:279] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Notifying assignor about the new Assignment(partitions=[messages.xms.mt.batch.report-0, messages.xms.mt.batch.report-1, messages.xms.mt.batch.report-2, messages.xms.mt.batch.report-3])
2022-11-07 10:28:25,347 INFO [consumer-0-C-1] o.a.k.c.c.i.ConsumerCoordinator [ConsumerCoordinator.java:291] [Consumer clientId=consumer-xms-batch-mt-callback-3, groupId=xms-batch-mt-callback] Adding newly assigned partitions: 

      Consumer configuration on restarted instance:

       

       

              allow.auto.create.topics = true
        auto.commit.interval.ms = 5000
        auto.offset.reset = earliest
        bootstrap.servers = [b-3.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094, b-1.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094, b-2.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094]
        check.crcs = true
        client.dns.lookup = use_all_dns_ips
        client.id = consumer-xms-batch-mt-callback-3
        client.rack = 
        connections.max.idle.ms = 540000
        default.api.timeout.ms = 60000
        enable.auto.commit = false
        exclude.internal.topics = true
        fetch.max.bytes = 52428800
        fetch.max.wait.ms = 500
        fetch.min.bytes = 1
        group.id = xms-batch-mt-callback
        group.instance.id = null
        heartbeat.interval.ms = 1500
        interceptor.classes = []
        internal.leave.group.on.close = true
        internal.throw.on.fetch.stable.offset.unsupported = false
        isolation.level = read_committed
        key.deserializer = class org.apache.kafka.common.serialization.StringDeserializer
        max.partition.fetch.bytes = 1048576
        max.poll.interval.ms = 300000
        max.poll.records = 1000
        metadata.max.age.ms = 300000
        metric.reporters = []
        metrics.num.samples = 2
        metrics.recording.level = INFO
        metrics.sample.window.ms = 30000
        partition.assignment.strategy = [class org.apache.kafka.clients.consumer.CooperativeStickyAssignor]
        receive.buffer.bytes = 65536
        reconnect.backoff.max.ms = 1000
        reconnect.backoff.ms = 50
        request.timeout.ms = 30000
        retry.backoff.ms = 100
        sasl.client.callback.handler.class = null
        sasl.jaas.config = null
        sasl.kerberos.kinit.cmd = /usr/bin/kinit
        sasl.kerberos.min.time.before.relogin = 60000
        sasl.kerberos.service.name = null
        sasl.kerberos.ticket.renew.jitter = 0.05
        sasl.kerberos.ticket.renew.window.factor = 0.8
        sasl.login.callback.handler.class = null
        sasl.login.class = null
        sasl.login.connect.timeout.ms = null
        sasl.login.read.timeout.ms = null
        sasl.login.refresh.buffer.seconds = 300
        sasl.login.refresh.min.period.seconds = 60
        sasl.login.refresh.window.factor = 0.8
        sasl.login.refresh.window.jitter = 0.05
        sasl.login.retry.backoff.max.ms = 10000
        sasl.login.retry.backoff.ms = 100
        sasl.mechanism = GSSAPI
        sasl.oauthbearer.clock.skew.seconds = 30
        sasl.oauthbearer.expected.audience = null
        sasl.oauthbearer.expected.issuer = null
        sasl.oauthbearer.jwks.endpoint.refresh.ms = 3600000
        sasl.oauthbearer.jwks.endpoint.retry.backoff.max.ms = 10000
        sasl.oauthbearer.jwks.endpoint.retry.backoff.ms = 100
        sasl.oauthbearer.jwks.endpoint.url = null
        sasl.oauthbearer.scope.claim.name = scope
        sasl.oauthbearer.sub.claim.name = sub
        sasl.oauthbearer.token.endpoint.url = null
        security.protocol = SSL
        security.providers = null
        send.buffer.bytes = 131072
        session.timeout.ms = 6000
        socket.connection.setup.timeout.max.ms = 30000
        socket.connection.setup.timeout.ms = 10000
        ssl.cipher.suites = null
        ssl.enabled.protocols = [TLSv1.2, TLSv1.3]
        ssl.endpoint.identification.algorithm = https
        ssl.engine.factory.class = null
        ssl.key.password = null
        ssl.keymanager.algorithm = SunX509
        ssl.keystore.certificate.chain = null
        ssl.keystore.key = null
        ssl.keystore.location = /opt/apps/msl/xms-gateway/conf/xms.us1tst.jks
        ssl.keystore.password = [hidden]
        ssl.keystore.type = JKS
        ssl.protocol = TLSv1.3
        ssl.provider = null
        ssl.secure.random.implementation = null
        ssl.trustmanager.algorithm = PKIX
        ssl.truststore.certificates = null
        ssl.truststore.location = null
        ssl.truststore.password = null
        ssl.truststore.type = JKS
        value.deserializer = class com.sinch.xms.model.kafka.serdes.MtBatchDeliveryReportDeserializer

      Consumer configuration on the other instance:

              allow.auto.create.topics = true
        auto.commit.interval.ms = 5000
        auto.offset.reset = earliest
        bootstrap.servers = [b-3.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094, b-1.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094, b-2.us1tst-eventbus.ujvxjq.c5.kafka.us-east-1.amazonaws.com:9094]
        check.crcs = true
        client.dns.lookup = use_all_dns_ips
        client.id = consumer-xms-batch-mt-callback-3
        client.rack = 
        connections.max.idle.ms = 540000
        default.api.timeout.ms = 60000
        enable.auto.commit = false
        exclude.internal.topics = true
        fetch.max.bytes = 52428800
        fetch.max.wait.ms = 500
        fetch.min.bytes = 1
        group.id = xms-batch-mt-callback
        group.instance.id = null
        heartbeat.interval.ms = 1500
        interceptor.classes = []
        internal.leave.group.on.close = true
        internal.throw.on.fetch.stable.offset.unsupported = false
        isolation.level = read_committed
        key.deserializer = class org.apache.kafka.common.serialization.StringDeserializer
        max.partition.fetch.bytes = 1048576
        max.poll.interval.ms = 300000
        max.poll.records = 1000
        metadata.max.age.ms = 300000
        metric.reporters = []
        metrics.num.samples = 2
        metrics.recording.level = INFO
        metrics.sample.window.ms = 30000
        partition.assignment.strategy = [class org.apache.kafka.clients.consumer.CooperativeStickyAssignor]
        receive.buffer.bytes = 65536
        reconnect.backoff.max.ms = 1000
        reconnect.backoff.ms = 50
        request.timeout.ms = 30000
        retry.backoff.ms = 100
        sasl.client.callback.handler.class = null
        sasl.jaas.config = null
        sasl.kerberos.kinit.cmd = /usr/bin/kinit
        sasl.kerberos.min.time.before.relogin = 60000
        sasl.kerberos.service.name = null
        sasl.kerberos.ticket.renew.jitter = 0.05
        sasl.kerberos.ticket.renew.window.factor = 0.8
        sasl.login.callback.handler.class = null
        sasl.login.class = null
        sasl.login.connect.timeout.ms = null
        sasl.login.read.timeout.ms = null
        sasl.login.refresh.buffer.seconds = 300
        sasl.login.refresh.min.period.seconds = 60
        sasl.login.refresh.window.factor = 0.8
        sasl.login.refresh.window.jitter = 0.05
        sasl.login.retry.backoff.max.ms = 10000
        sasl.login.retry.backoff.ms = 100
        sasl.mechanism = GSSAPI
        sasl.oauthbearer.clock.skew.seconds = 30
        sasl.oauthbearer.expected.audience = null
        sasl.oauthbearer.expected.issuer = null
        sasl.oauthbearer.jwks.endpoint.refresh.ms = 3600000
        sasl.oauthbearer.jwks.endpoint.retry.backoff.max.ms = 10000
        sasl.oauthbearer.jwks.endpoint.retry.backoff.ms = 100
        sasl.oauthbearer.jwks.endpoint.url = null
        sasl.oauthbearer.scope.claim.name = scope
        sasl.oauthbearer.sub.claim.name = sub
        sasl.oauthbearer.token.endpoint.url = null
        security.protocol = SSL
        security.providers = null
        send.buffer.bytes = 131072
        session.timeout.ms = 6000
        socket.connection.setup.timeout.max.ms = 30000
        socket.connection.setup.timeout.ms = 10000
        ssl.cipher.suites = null
        ssl.enabled.protocols = [TLSv1.2, TLSv1.3]
        ssl.endpoint.identification.algorithm = https
        ssl.engine.factory.class = null
        ssl.key.password = null
        ssl.keymanager.algorithm = SunX509
        ssl.keystore.certificate.chain = null
        ssl.keystore.key = null
        ssl.keystore.location = /opt/apps/msl/xms-gateway/conf/xms.us1tst.jks
        ssl.keystore.password = [hidden]
        ssl.keystore.type = JKS
        ssl.protocol = TLSv1.3
        ssl.provider = null
        ssl.secure.random.implementation = null
        ssl.trustmanager.algorithm = PKIX
        ssl.truststore.certificates = null
        ssl.truststore.location = null
        ssl.truststore.password = null
        ssl.truststore.type = JKS
        value.deserializer = class com.sinch.xms.model.kafka.serdes.MtBatchDeliveryReportDeserializer

       

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        Bug - A problem which impairs or prevents the functions of the product. KAFKA-14419 Failed SyncGroup leading to partitions lost due to processing during rebalances

        • Major - Major loss of function.
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            Unassigned Unassigned
            Carlstedt Mikael
            A. Sophie Blee-Goldman A. Sophie Blee-Goldman
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              Updated:
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