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https://issues.apache.org/jira/browse/KAFKA-7458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Roesler resolved KAFKA-7458.
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Resolution: Fixed
> Avoid enforced processing during bootstrap phase
> ------------------------------------------------
>
> Key: KAFKA-7458
> URL: https://issues.apache.org/jira/browse/KAFKA-7458
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Guozhang Wang
> Assignee: John Roesler
> Priority: Major
> Fix For: 3.0.0
>
>
> In KAFKA-3514, we introduced a new config for allowing users to delay
> enforcing processing without all input topic partitions to have data. This
> config's default value is 0, which means that as long as the first fetch does
> not contains some records for all the partitions it will fall into enforced
> processing immediately, which is a high risk especially under bootstrap case.
> We should consider leveraging on pause / resume to make sure that upon
> starting, some partition indeed does not have any data before we fall into
> enforced processing
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