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https://issues.apache.org/jira/browse/KAFKA-616?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jay Kreps resolved KAFKA-616.
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Resolution: Fixed
Assignee: Neha Narkhede
Neha did it :-)
> Implement acks=0
> ----------------
>
> Key: KAFKA-616
> URL: https://issues.apache.org/jira/browse/KAFKA-616
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8
> Reporter: Jay Kreps
> Assignee: Neha Narkhede
> Labels: newbie
>
> For completeness it would be nice to handle the case where acks=0 in the
> produce request. The meaning of this would be that the broker immediately
> responds without blocking even on the local write. The advantage of this is
> that it would often isolate the producer from any latency in the local write
> (which we have occasionally seen).
> Since we don't block on the append the response would contain a placeholder
> for all the fields--e.g. offset=-1 and no error.
> This should be pretty easy to implement, just an if statement in
> KafkaApis.handleProduceRequest to send the response immediately in this case
> (and again to avoid sending a second response later).
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