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From "Daniel Qian (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-6620) Documentation about "exactly_once" doesn't mention "transaction.state.log.min.isr"
Date Wed, 07 Mar 2018 08:02:00 GMT
Daniel Qian created KAFKA-6620:
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             Summary: 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


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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