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https://issues.apache.org/jira/browse/KAFKA-240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13221452#comment-13221452
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Jun Rao commented on KAFKA-240:
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Joe,
When the client creates a ProduceRequest, we don't need the client to specify
the version_id explicitly, since it's embedded in the client library. However,
when we deserialize received bytes from a client into a ProduceRequest on the
broker, we don't want to pick up the version_id that the server is on. Instead,
we need to know the version of the client. So, we will need 2 constructors for
ProduceRequest, one with version_id and one without. The former will be used on
the broker and the latter will be used in the producer client.
> implement new producer and consumer request format
> --------------------------------------------------
>
> Key: KAFKA-240
> URL: https://issues.apache.org/jira/browse/KAFKA-240
> Project: Kafka
> Issue Type: Sub-task
> Components: core
> Affects Versions: 0.8
> Reporter: Jun Rao
> Labels: fetch, replication, wireprotocol
> Fix For: 0.8
>
> Attachments: KAFKA-240-FetchRequest-v1.patch,
> KAFKA-240-FetchRequest-v2.patch, KAFKA-240-FetchRequest-validation-v1.patch,
> KAFKA-240.ProducerRequest.v2.patch, KAFKA-240.ProducerRequest.v3.patch,
> KAFKA-240.ProducerRequest.v4.patch, KAFKA-240.v3.patch,
> kafka-240_unittestfix_delta.patch
>
>
> We want to change the producer/consumer request/response format according to
> the discussion in the following wiki:
> https://cwiki.apache.org/confluence/display/KAFKA/New+Wire+Format+Proposal
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