[jira] [Updated] (KAFKA-376) expose different data to fetch requests from the follower replicas and consumer clients

["Jun Rao (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jun Rao updated KAFKA-376:
--------------------------

    Summary: expose different data to fetch requests from the follower replicas and consumer clients  (was: we need to expose different data to fetch requests from the follower replicas and consumer clients)
    
> expose different data to fetch requests from the follower replicas and consumer clients
> ---------------------------------------------------------------------------------------
>
>                 Key: KAFKA-376
>                 URL: https://issues.apache.org/jira/browse/KAFKA-376
>             Project: Kafka
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 0.8
>            Reporter: Jun Rao
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> Currently, the broker always uses highwatermark to calculate the available bytes to a fetch request, no matter where the request is from. Instead, we should use highwatermark for requests coming from real consumer clients and use logendoffset for requests coming from follower replicas.

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