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Posted to issues@kudu.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2016/09/28 18:00:24 UTC

[jira] [Commented] (KUDU-1535) Add rack awareness

    [ https://issues.apache.org/jira/browse/KUDU-1535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15530393#comment-15530393 ] 

Jean-Daniel Cryans commented on KUDU-1535:
------------------------------------------

I wrote up a scoping document for this feature, see: https://docs.google.com/document/d/1NgmaWzTQR21usH42HikCfoAWRjjJpqnQ64zRW2s6Osc/edit?usp=sharing

> Add rack awareness
> ------------------
>
>                 Key: KUDU-1535
>                 URL: https://issues.apache.org/jira/browse/KUDU-1535
>             Project: Kudu
>          Issue Type: New Feature
>          Components: master
>            Reporter: Jean-Daniel Cryans
>
> Kudu currently doesn't have the concept of rack awareness, so any kind of rack failure can result in data loss (assuming that Kudu has tablet servers in multiple racks).
> This changes how the master picks hosts to send new tablets to, and we also need to implement a way for the master to map hostname names to racks (could be similar to Hadoop).



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