[jira] [Created] (KAFKA-7698) Kafka Broker fail to start: ProducerFencedException thrown from producerstatemanager.scala!checkProducerEpoch

["Ming Liu (JIRA)" <ji...@apache.org>]

Ming Liu created KAFKA-7698:
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             Summary: Kafka Broker fail to start: ProducerFencedException thrown from producerstatemanager.scala!checkProducerEpoch 
                 Key: KAFKA-7698
                 URL: https://issues.apache.org/jira/browse/KAFKA-7698
             Project: Kafka
          Issue Type: Bug
            Reporter: Ming Liu


During our operation of Kafka, we frequently saw this failure: 

   There was an error in one of the threads during logs loading: org.apache.kafka.common.errors.ProducerFencedException:

{code:java}

[06:57:09,697] INFO [ProducerStateManager partition=interaction_events-127] Loading producer state from snapshot file '/data/disk5/kafka/interaction_events-127/00000000092130764817.snapshot' (kafka.log.ProducerStateManager)
[06:57:09,698] INFO [Log partition=interaction_events-127, dir=/data/disk5/kafka] Completed load of log with 11 segments, log start offset 91975003024 and log end offset 92130764817 in 12701 ms (kafka.log.Log)
[06:57:09,701] ERROR There was an error in one of the threads during logs loading: org.apache.kafka.common.errors.ProducerFencedException: Producer's epoch is no longer valid. There is probably another producer with a newer epoch. 63 (request epoch), 66 (server epoch) (kafka.log.LogManager)
[06:57:09,705] INFO [ProducerStateManager partition=client_interaction_events_authorid_enrichment-20] Writing producer snapshot at offset 92418754384 (kafka.log.ProducerStateManager)
[06:57:09,707] ERROR [KafkaServer id=2] Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)
org.apache.kafka.common.errors.ProducerFencedException: Producer's epoch is no longer valid. There is probably another producer with a newer epoch. 63 (request epoch), 66 (server epoch)
{code:java}
 {code}



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