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From "Guozhang Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-1215) Rack-Aware replica assignment option
Date Mon, 03 Mar 2014 18:40:22 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-1215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13918391#comment-13918391
] 

Guozhang Wang commented on KAFKA-1215:
--------------------------------------

Some more comments on the RB.

> Rack-Aware replica assignment option
> ------------------------------------
>
>                 Key: KAFKA-1215
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1215
>             Project: Kafka
>          Issue Type: Improvement
>          Components: replication
>    Affects Versions: 0.8.0
>            Reporter: Joris Van Remoortere
>            Assignee: Jun Rao
>             Fix For: 0.8.2
>
>         Attachments: rack_aware_replica_assignment_v1.patch, rack_aware_replica_assignment_v2.patch
>
>
> Adding a rack-id to kafka config. This rack-id can be used during replica assignment
by using the max-rack-replication argument in the admin scripts (create topic, etc.). By default
the original replication assignment algorithm is used because max-rack-replication defaults
to -1. max-rack-replication > -1 is not honored if you are doing manual replica assignment
(preffered).
> If this looks good I can add some test cases specific to the rack-aware assignment.
> I can also port this to trunk. We are currently running 0.8.0 in production and need
this, so i wrote the patch against that.



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