[jira] [Resolved] (KAFKA-1012) Implement an Offset Manager and hook offset requests to it

["Joel Koshy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-1012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Koshy resolved KAFKA-1012.
-------------------------------

    Resolution: Fixed

> Implement an Offset Manager and hook offset requests to it
> ----------------------------------------------------------
>
>                 Key: KAFKA-1012
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1012
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: consumer
>            Reporter: Tejas Patil
>            Assignee: Tejas Patil
>            Priority: Minor
>         Attachments: KAFKA-1012-v2.patch, KAFKA-1012.patch
>
>
> After KAFKA-657, we have a protocol for consumers to commit and fetch offsets from brokers. Currently, consumers are not using this API and directly talking with Zookeeper. 
> This Jira will involve following:
> 1. Add a special topic in kafka for storing offsets
> 2. Add an OffsetManager interface which would handle storing, accessing, loading and maintaining consumer offsets
> 3. Implement offset managers for both of these 2 choices : existing ZK based storage or inbuilt storage for offsets.
> 4. Leader brokers would now maintain an additional hash table of offsets for the group-topic-partitions that they lead
> 5. Consumers should now use the OffsetCommit and OffsetFetch API



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