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https://issues.apache.org/jira/browse/KAFKA-6620?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guozhang Wang resolved KAFKA-6620.
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Resolution: Fixed
Fix Version/s: 2.1.0
> Documentation about "exactly_once" doesn't mention
> "transaction.state.log.min.isr"
> -----------------------------------------------------------------------------------
>
> Key: KAFKA-6620
> URL: https://issues.apache.org/jira/browse/KAFKA-6620
> Project: Kafka
> Issue Type: Bug
> Components: documentation, streams
> Reporter: Daniel Qian
> Assignee: Lee Dongjin
> Priority: Major
> Fix For: 2.1.0
>
>
> Documentation about "processing.guarantee" says:
> {quote}The processing guarantee that should be used. Possible values are
> {{at_least_once}}(default) and {{exactly_once}}. Note that exactly-once
> processing requires a cluster of at least three brokers by default what is
> the recommended setting for production; *for development you can change this,
> by adjusting broker setting*
> `{color:#FF0000}*transaction.state.log.replication.factor*{color}`
> {quote}
> If one only set *transaction.state.log.replication.factor=1* but leave
> *transaction.state.log.min.isr* with default value (which is 2) the Streams
> Application will break.
> Hope you guys modify the doc, thanks.
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