[jira] [Updated] (KAFKA-5056) Shuffling of partitions in old consume fetch requests removed

["Todd Palino (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-5056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Palino updated KAFKA-5056:
-------------------------------
    Reviewer: Joel Koshy
      Status: Patch Available  (was: In Progress)

> Shuffling of partitions in old consume fetch requests removed
> -------------------------------------------------------------
>
>                 Key: KAFKA-5056
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5056
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.10.1.0
>            Reporter: Todd Palino
>            Assignee: Todd Palino
>
> [KIP-74|https://cwiki.apache.org/confluence/display/KAFKA/KIP-74%3A+Add+Fetch+Response+Size+Limit+in+Bytes] deprecated the constructor to {{FetchRequest}} which shuffles the {{requestInfo}} parameter, in favor of round robin reordering logic added to the replica fetcher and the consumer API. However, this was not added to the old consumer {{ConsumerFetcherThread}}, which has resulted in unfair partition fetching since 0.10.1.
> In order to maintain the old consumer, we need to add the removed shuffle to {{buildFetchRequest}} as the topic-partition list for each {{FetchRequest}} is composed.



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