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https://issues.apache.org/jira/browse/KAFKA-391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14198699#comment-14198699
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Joel Koshy commented on KAFKA-391:
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If there are three partitions, then there will be three message-sets. i.e.,
producerRequest.data.size will be three, not one. Can you give example
_application_ code that reproduces the issue that you are seeing?
> Producer request and response classes should use maps
> -----------------------------------------------------
>
> Key: KAFKA-391
> URL: https://issues.apache.org/jira/browse/KAFKA-391
> Project: Kafka
> Issue Type: Bug
> Reporter: Joel Koshy
> Assignee: Joel Koshy
> Priority: Blocker
> Labels: optimization
> Fix For: 0.8.0
>
> Attachments: KAFKA-391-draft-r1374069.patch, KAFKA-391-v2.patch,
> KAFKA-391-v3.patch, KAFKA-391-v4.patch
>
>
> Producer response contains two arrays of error codes and offsets - the
> ordering in these arrays correspond to the flattened ordering of the request
> arrays.
> It would be better to switch to maps in the request and response as this
> would make the code clearer and more efficient (right now, linear scans are
> used in handling producer acks).
> We can probably do the same in the fetch request/response.
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