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Matthias J. Sax updated KAFKA-7698: ----------------------------------- Fix Version/s: (was: 2.1.0) > 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 > Affects Versions: 2.1.0 > Reporter: Ming Liu > Priority: Major > Labels: easyfix > > 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 epoch is no longer valid.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 no longer valid.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} -- This message was sent by Atlassian JIRA (v7.6.3#76005)