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Posted to issues@kylin.apache.org by "Zhong Yanghong (JIRA)" <ji...@apache.org> on 2018/12/27 01:53:00 UTC

[jira] [Updated] (KYLIN-2615) Need better documents that explains design choices

     [ https://issues.apache.org/jira/browse/KYLIN-2615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhong Yanghong updated KYLIN-2615:
----------------------------------
    Fix Version/s:     (was: v2.6.0)
                   Future

> Need better documents that explains design choices
> --------------------------------------------------
>
>                 Key: KYLIN-2615
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2615
>             Project: Kylin
>          Issue Type: Task
>          Components: Documentation
>            Reporter: nirav patel
>            Assignee: Shaofeng SHI
>            Priority: Major
>
> I see there are documents that explains how Kylin ingest hive tables and build cubes/cuboids using MR and/or spark but there is hardly anything about how it defines Metadata for cubes/segments, what are Segments, how it builds indexes (Dictionaries, Inverted index if any) and how that helps querying against cubes stored on hbase.
> Other thing is how Kylin manages read-write isolation (read while write). Is it snapshot based or something that user needs to take care of?



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