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From "Aljoscha Krettek (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (FLINK-8086) FlinkKafkaProducer011 can permanently fail in recovery through ProducerFencedException
Date Mon, 20 Nov 2017 12:38:01 GMT

     [ https://issues.apache.org/jira/browse/FLINK-8086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Aljoscha Krettek closed FLINK-8086.

Fixed on master in

Fixed on release-1.4 in

> FlinkKafkaProducer011 can permanently fail in recovery through ProducerFencedException
> --------------------------------------------------------------------------------------
>                 Key: FLINK-8086
>                 URL: https://issues.apache.org/jira/browse/FLINK-8086
>             Project: Flink
>          Issue Type: Bug
>          Components: Kafka Connector
>    Affects Versions: 1.4.0
>            Reporter: Stefan Richter
>            Assignee: Piotr Nowojski
>            Priority: Blocker
>             Fix For: 1.4.0
> Chaos monkey test in a cluster environment can permanently bring down our FlinkKafkaProducer011.
> Typically, after a small number of randomly killed TMs, the data generator job is no
longer able to recover from a checkpoint because of the following problem:
> org.apache.kafka.common.errors.ProducerFencedException: Producer attempted an operation
with an old epoch. Either there is a newer producer with the same transactionalId, or the
producer's transaction has been expired by the broker.
> The problem is reproduceable and happened for me in every run after the chaos monkey
killed a couple of TMs.

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