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https://issues.apache.org/jira/browse/KAFKA-789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15334523#comment-15334523
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radha commented on KAFKA-789:
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This says resolved but does not mention anything about how this works?
> Producer-side persistence for delivery guarantee
> ------------------------------------------------
>
> Key: KAFKA-789
> URL: https://issues.apache.org/jira/browse/KAFKA-789
> Project: Kafka
> Issue Type: Improvement
> Components: producer
> Reporter: Matan Safriel
> Assignee: Jun Rao
> Priority: Minor
> Fix For: 0.10.1.0
>
>
> A suggestion for higher guarantee for the part of entering messages into
> Kafka through it's producer. It aims to address the case that the entire set
> of broker replicas for a topic and partition is not available. Currently, in
> that case, data is lost. When a message set exhausts the send retry counter,
> the message set will be simply dropped. It would be nice being able to
> provide higher guarantee that a message passed to the producer would
> eventually be received by the broker.
> In an environment with some disk space to spare for this on the producer
> side, persisting to disk would seem to enable keeping messages for later
> retry (until defined space limits are exhausted). Thus somewhat elevating the
> level of guarantee.
> One way to facilitate this would be capitalizing on
> https://issues.apache.org/jira/browse/KAFKA-496, as the feedback it will add
> will enable knowing what needs to be retried again later. Changes to the
> producer or a wrapper around it (that may require access to the partitioning
> functions) would be able to persist failed message sets and manage delivery
> with a nice level of guarantee. As it would affect performance and use disks,
> should probably be a non-default option.
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